Version 0.5.0

* [API/exams] Fix parsing empty list
* [API/exams] Fix date format
* [API/exams] Set day name from api

.circleci/config.yml

@@ -7,7 +7,7 @@ references:
 
   container_config: &container_config
     docker:
-      - image: circleci/android:api-27-alpha
+      - image: circleci/android:api-26-alpha
     working_directory: *workspace_root
     environment:
       environment:
@@ -31,9 +31,18 @@ jobs:
       - run:
           name: Setup environment
           command: ./gradlew dependencies --no-daemon --stacktrace --console=plain -PdisablePreDex || true
+      - run:
+          name: Decrypt keys
+          command: |
+            openssl aes-256-cbc -d -in ./app/key-encrypted.p12 -k $ENCRYPT_KEY >> ./app/key.p12
+            openssl aes-256-cbc -d -in ./app/upload-key-encrypted.jks -k $ENCRYPT_KEY >> ./app/upload-key.jks
       - run:
           name: Initial build
           command: ./gradlew build assembleDebug -x test -x lint -x fabricGenerateResourcesRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
+      - run:
+          name: Clear keys
+          command: |
+            rm ./app/key.p12 ./app/upload-key.jks
       - store_artifacts:
           path: ./app/build/outputs/apk/
           destination: apks/
@@ -172,30 +181,69 @@ jobs:
           name: Run sonarqube runner
           command: ./gradlew -x test -x lint sonarqube -Dsonar.host.url=$SONAR_HOST -Dsonar.organization=$SONAR_ORG -Dsonar.login=$SONAR_KEY -Dsonar.branch.name=$CIRCLE_BRANCH --no-daemon --stacktrace --console=plain -PdisablePreDex
 
+  deploy:
+    <<: *container_config
+    steps:
+      - *attach_workspace
+      - restore_cache:
+          <<: *general_cache_key
+      - run:
+          name: Decrypt keys
+          command: |
+            openssl aes-256-cbc -d -in ./app/key-encrypted.p12 -k $ENCRYPT_KEY >> ./app/key.p12
+            openssl aes-256-cbc -d -in ./app/upload-key-encrypted.jks -k $ENCRYPT_KEY >> ./app/upload-key.jks
+      - run:
+          name: Publish release
+          command: ./gradlew publishRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
+
 workflows:
   version: 2
 
-  build_check_tests:
+  build-test-deploy:
     jobs:
-      - build
+      - build:
+          filters:
+            tags:
+              only: /.*/
       - lint:
+          filters:
+            tags:
+              only: /.*/
           requires:
             - build
       - app-test:
+          filters:
+            tags:
+              only: /.*/
           requires:
             - build
       - api-test:
+          filters:
+            tags:
+              only: /.*/
           requires:
             - build
       - instrumented:
-          requires:
-            - build
+          filters:
+            tags:
+              only: /.*/
           requires:
             - build
       - sonarcube:
+          filters:
+            tags:
+              only: /.*/
           requires:
             - build
             - lint
             - app-test
             - api-test
             - instrumented
+      - deploy:
+          requires:
+            - instrumented
+          filters:
+            tags:
+              only: /\d+\.\d+\.\d+/
+            branches:
+              ignore: /.*/

.gitignore

@@ -32,6 +32,8 @@ local.properties
 .idea/tasks.xml
 .idea/vcs.xml
 .idea/workspace.xml
+.idea/caches/
+.idea/codeStyles/
 *.iml
 
 # OS-specific files
@@ -42,3 +44,7 @@ local.properties
 .Trashes
 ehthumbs.db
 Thumbs.db
+.idea/codeStyles/
+.idea/caches/
+./app/key.p12
+./app/upload-key.jks

.gitlab-ci.yml

@@ -12,7 +12,7 @@ build:
   script:
     - ./gradlew --no-daemon --stacktrace dependencies || true
     - ./gradlew --no-daemon --stacktrace assembleDebug
-    - mv app/build/outputs/apk/app-debug.apk .
+    - mv app/build/outputs/apk/debug/app-debug.apk .
   artifacts:
     name: "${CI_PROJECT_NAME}_${CI_BUILD_REF_NAME}-${CI_BUILD_ID}"
     paths:
@@ -26,7 +26,7 @@ tests:
      - .gradle
     policy: pull
   script:
-    - ./gradlew --no-daemon --stacktrace test
+    - ./gradlew --no-daemon --stacktrace -x fabricGenerateResourcesRelease test
   artifacts:
     paths:
     - app/build/reports/tests
@@ -39,7 +39,7 @@ lint:
      - .gradle
     policy: pull
   script:
-    - ./gradlew --no-daemon --stacktrace lint
+    - ./gradlew --no-daemon --stacktrace -x fabricGenerateResourcesRelease lint
   artifacts:
     paths:
     - app/build/reports

README.md

@@ -4,9 +4,12 @@
 [![Bitrise](https://img.shields.io/bitrise/daeff1893f3c8128/master.svg?token=Hjm1ACamk86JDeVVJHOeqQ&style=flat-square)](https://www.bitrise.io/app/daeff1893f3c8128)
 [![Codecov](https://img.shields.io/codecov/c/github/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://codecov.io/gh/wulkanowy/wulkanowy)
 [![BCH compliance](https://bettercodehub.com/edge/badge/wulkanowy/wulkanowy?branch=master)](https://bettercodehub.com/)
-[![Known Vulnerabilities](https://snyk.io/test/github/wulkanowy/wulkanowy/badge.svg?targetFile=app%2Fbuild.gradle&style=flat-square)](https://snyk.io/test/github/wulkanowy/wulkanowy?targetFile=app%2Fbuild.gradle)
+[![Scrutinizer](https://img.shields.io/scrutinizer/g/wulkanowy/wulkanowy.svg?style=flat-square)](https://scrutinizer-ci.com/g/wulkanowy/wulkanowy/?branch=master)
 [![Bintray](https://img.shields.io/bintray/v/wulkanowy/wulkanowy/api.svg?style=flat-square)](https://bintray.com/wulkanowy/wulkanowy/api)
+[![Discord](https://img.shields.io/discord/390889354199040011.svg?style=flat-square)](https://discord.gg/vccAQBr)
+
+[Pobierz wersję beta](https://play.google.com/store/apps/details?id=io.github.wulkanowy&utm_source=vcs)
 
 [Pobierz wersję rozwojową](https://bitrise-redirector.herokuapp.com/v0.1/apps/daeff1893f3c8128/builds/master/artifacts/app-debug-bitrise-signed.apk)
 
-Wulkanowy to aplikacja na androida polepszająca wygodę używania dziennika UONET+.
+Androidowy klient dziennika VULCAN UONET+.

android-sonarqube.gradle

@@ -5,7 +5,7 @@ sonarqube {
     //noinspection GroovyAssignabilityCheck
     properties {
         def files = fileTree("${rootProject.projectDir}/api/build/libs/").filter { it.isFile() }.files.name
-        def libraries = project.android.sdkDirectory.getPath() + "/platforms/android-27/android.jar," +
+        def libraries = project.android.sdkDirectory.getPath() + "/platforms/android-26/android.jar," +
                 "${project.rootDir}/api/build/libs/" + files[0]
 
         property "sonar.projectName", GROUP_ID + ":app"

api/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'java-library'
+apply plugin: 'kotlin'
 apply plugin: 'org.sonarqube'
 apply plugin: 'jacoco'
 apply plugin: 'com.jfrog.bintray'
@@ -31,6 +32,9 @@ dependencies {
     implementation "org.jsoup:jsoup:$jsoup"
     implementation "org.apache.commons:commons-lang3:$apacheLang"
     implementation "com.google.code.gson:gson:$gson"
+    implementation "org.slf4j:slf4j-api:$slf4jApi"
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
 
     testImplementation "junit:junit:$junit"
     testImplementation "org.mockito:mockito-core:$mockito"
@@ -115,3 +119,29 @@ artifacts {
     archives sourcesJar
     archives javadocJar
 }
+
+buildscript {
+    ext.kotlin_version = '1.2.41'
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+compileKotlin {
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
+compileTestKotlin {
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}

api/src/main/java/io/github/wulkanowy/api/Client.java

@@ -3,6 +3,8 @@ package io.github.wulkanowy.api;
 import org.jsoup.Connection;
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.Date;
@@ -21,14 +23,14 @@ public class Client {
 
     private String password;
 
-    private String symbol = "Default";
+    private String symbol;
 
-    private Login login;
-
-    private Date lastSuccessRequest = new Date();
+    private Date lastSuccessRequest;
 
     private Cookies cookies = new Cookies();
 
+    private static final Logger logger = LoggerFactory.getLogger(Client.class);
+
     Client(String email, String password, String symbol) {
         this.email = email;
         this.password = password;
@@ -46,7 +48,11 @@ public class Client {
             String[] url = creds[0].split("://");
 
             protocol = url[0];
-            host = url[1];
+            String[] path = url[1].split("/");
+            host = path[0];
+            if (path.length > 1) {
+                symbol = path[1];
+            }
             email = creds[2];
         }
     }
@@ -56,23 +62,18 @@ public class Client {
             return;
         }
 
-        this.symbol = getLogin().login(email, password, symbol);
+        clearCookies();
+        this.symbol = new Login(this).login(email, password, symbol);
+        logger.info("Login successful on {} at {}", getHost(), new Date());
     }
 
     private boolean isLoggedIn() {
-        return getCookies().size() > 0 &&
-                29 > TimeUnit.MILLISECONDS.toMinutes(new Date().getTime() - lastSuccessRequest.getTime());
+        logger.debug("Last success request: {}", lastSuccessRequest);
+        logger.debug("Cookies: {}", getCookies().size());
 
-    }
+        return getCookies().size() > 0 && lastSuccessRequest != null &&
+                5 > TimeUnit.MILLISECONDS.toMinutes(new Date().getTime() - lastSuccessRequest.getTime());
 
-    Login getLogin() {
-        if (null != login) {
-            return login;
-        }
-
-        login = new Login(this);
-
-        return login;
     }
 
     public String getSymbol() {
@@ -87,6 +88,10 @@ public class Client {
         return cookies.getItems();
     }
 
+    public void clearCookies() {
+        cookies = new Cookies();
+    }
+
     String getHost() {
         return host;
     }
@@ -98,25 +103,49 @@ public class Client {
                 .replace("{symbol}", symbol);
     }
 
-    Document getPageByUrl(String url) throws IOException, VulcanException {
-        login();
+    public Document getPageByUrl(String url) throws IOException, VulcanException {
+        return getPageByUrl(url, true, null);
+    }
 
-        Connection.Response response = Jsoup.connect(getFilledUrl(url))
+    public Document getPageByUrl(String url, boolean loginBefore) throws IOException, VulcanException {
+        return getPageByUrl(url, loginBefore, null);
+    }
+
+    public synchronized Document getPageByUrl(String url, boolean loginBefore, Map<String, String> cookies) throws IOException, VulcanException {
+        if (loginBefore) {
+            login();
+        }
+
+        if (null != cookies) {
+            this.cookies.addItems(cookies);
+        }
+
+        url = getFilledUrl(url);
+
+        logger.debug("GET {}", url);
+
+        Connection.Response response = Jsoup.connect(url)
                 .followRedirects(true)
                 .cookies(getCookies())
                 .execute();
 
         this.cookies.addItems(response.cookies());
 
-        Document doc = checkForErrors(response.parse());
+        Document doc = checkForErrors(response.parse(), response.statusCode());
 
-        lastSuccessRequest = new Date();
+        if (loginBefore) {
+            lastSuccessRequest = new Date();
+        }
 
         return doc;
     }
 
-    public Document postPageByUrl(String url, String[][] params) throws IOException, VulcanException {
-        Connection connection = Jsoup.connect(getFilledUrl(url));
+    public synchronized Document postPageByUrl(String url, String[][] params) throws IOException, VulcanException {
+        url = getFilledUrl(url);
+
+        logger.debug("POST {}", url);
+
+        Connection connection = Jsoup.connect(url);
 
         for (String[] data : params) {
             connection.data(data[0], data[1]);
@@ -130,13 +159,19 @@ public class Client {
 
         this.cookies.addItems(response.cookies());
 
-        return checkForErrors(response.parse());
+        response.bufferUp(); // fixes cert parsing issues #109
+
+        return checkForErrors(response.parse(), response.statusCode());
     }
 
     public String getJsonStringByUrl(String url) throws IOException, VulcanException {
         login();
 
-        Connection.Response response = Jsoup.connect(getFilledUrl(url))
+        url = getFilledUrl(url);
+
+        logger.debug("GET {}", url);
+
+        Connection.Response response = Jsoup.connect(url)
                 .followRedirects(true)
                 .ignoreContentType(true)
                 .cookies(getCookies())
@@ -150,7 +185,11 @@ public class Client {
     public String postJsonStringByUrl(String url, String[][] params) throws IOException, VulcanException {
         login();
 
-        Connection connection = Jsoup.connect(getFilledUrl(url));
+        url = getFilledUrl(url);
+
+        logger.debug("POST {}", url);
+
+        Connection connection = Jsoup.connect(url);
 
         for (String[] data : params) {
             connection.data(data[0], data[1]);
@@ -168,7 +207,9 @@ public class Client {
         return response.body();
     }
 
-    Document checkForErrors(Document doc) throws VulcanException {
+    Document checkForErrors(Document doc, int code) throws VulcanException {
+        lastSuccessRequest = null;
+
         String title = doc.select("title").text();
         if ("Przerwa techniczna".equals(title)) {
             throw new VulcanOfflineException(title);
@@ -179,6 +220,10 @@ public class Client {
             throw new NotLoggedInErrorException(singIn);
         }
 
+        if ("Błąd strony".equals(title)) {
+            throw new NotLoggedInErrorException(title + " " + doc.body() + ", status: " + code);
+        }
+
         return doc;
     }
 }

api/src/main/java/io/github/wulkanowy/api/DateTimeUtils.kt

@@ -0,0 +1,53 @@
+package io.github.wulkanowy.api
+
+import java.text.SimpleDateFormat
+import java.util.*
+
+const val LOG_DATE_PATTERN = "dd.MM.yyyy"
+const val API_DATE_PATTERN = "yyyy-MM-dd"
+
+const val TICKS_AT_EPOCH = 621355968000000000L
+const val TICKS_PER_MILLISECOND = 10000
+
+fun getFormattedDate(date: String): String {
+    return getFormattedDate(date, API_DATE_PATTERN)
+}
+
+fun getFormattedDate(date: String, format: String): String {
+    return getFormattedDate(date, LOG_DATE_PATTERN, format)
+}
+
+fun getFormattedDate(date: String, fromFormat: String, toFormat: String): String {
+    val sdf = SimpleDateFormat(fromFormat, Locale.ROOT)
+    val d = sdf.parse(date)
+    sdf.applyPattern(toFormat)
+
+    return sdf.format(d)
+}
+
+fun getDateAsTick(dateString: String?): String {
+    if (dateString.isNullOrEmpty()) {
+        return ""
+    }
+
+    return getDateAsTick(dateString as String, API_DATE_PATTERN).toString()
+}
+
+fun getDateAsTick(dateString: String, dateFormat: String): Long {
+    val format = SimpleDateFormat(dateFormat, Locale.ROOT)
+    format.timeZone = TimeZone.getTimeZone("UTC")
+    val dateObject = format.parse(dateString)
+
+    return getDateAsTick(dateObject)
+}
+
+fun getDateAsTick(date: Date): Long {
+    val calendar = Calendar.getInstance()
+    calendar.time = date
+
+    return calendar.timeInMillis * TICKS_PER_MILLISECOND + TICKS_AT_EPOCH
+}
+
+fun getDate(netTicks: Long): Date {
+    return Date((netTicks - TICKS_AT_EPOCH) / TICKS_PER_MILLISECOND)
+}

api/src/main/java/io/github/wulkanowy/api/Semester.java

@@ -1,37 +0,0 @@
-package io.github.wulkanowy.api;
-
-public class Semester {
-
-    private String number = "";
-
-    private String id = "";
-
-    private boolean isCurrent = false;
-
-    public String getNumber() {
-        return number;
-    }
-
-    public Semester setNumber(String number) {
-        this.number = number;
-        return this;
-    }
-
-    public String getId() {
-        return id;
-    }
-
-    public Semester setId(String id) {
-        this.id = id;
-        return this;
-    }
-
-    public boolean isCurrent() {
-        return isCurrent;
-    }
-
-    public Semester setCurrent(boolean current) {
-        isCurrent = current;
-        return this;
-    }
-}

api/src/main/java/io/github/wulkanowy/api/SnP.java

@@ -6,19 +6,32 @@ import org.jsoup.nodes.Element;
 import java.io.IOException;
 import java.util.List;
 
+import io.github.wulkanowy.api.generic.Diary;
+import io.github.wulkanowy.api.generic.ParamItem;
+import io.github.wulkanowy.api.generic.Semester;
+import io.github.wulkanowy.api.generic.Student;
+
 public interface SnP {
 
-    String getId();
+    String getSchoolID();
 
-    StudentAndParent storeContextCookies() throws IOException, VulcanException;
+    void setDiaryID(String id);
+
+    String getStudentID();
+
+    List<Student> getStudents() throws IOException, VulcanException;
+
+    StudentAndParent setUp() throws IOException, VulcanException;
 
     String getRowDataChildValue(Element e, int index);
 
     Document getSnPPageDocument(String url) throws IOException, VulcanException;
 
+    List<Diary> getDiaries() throws IOException, VulcanException;
+
     List<Semester> getSemesters() throws IOException, VulcanException;
 
     List<Semester> getSemesters(Document gradesPage);
 
-    Semester getCurrentSemester(List<Semester> semesterList);
+    <T> T getCurrent(List<? extends ParamItem> list);
 }

api/src/main/java/io/github/wulkanowy/api/StudentAndParent.java

@@ -3,10 +3,20 @@ package io.github.wulkanowy.api;
 import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
+import java.net.URL;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+
+import io.github.wulkanowy.api.generic.Diary;
+import io.github.wulkanowy.api.generic.ParamItem;
+import io.github.wulkanowy.api.generic.Semester;
+import io.github.wulkanowy.api.generic.Student;
 
 public class StudentAndParent implements SnP {
 
@@ -18,51 +28,80 @@ public class StudentAndParent implements SnP {
 
     private Client client;
 
-    private String id;
+    private String schoolID;
 
-    StudentAndParent(Client client, String id) {
+    private String studentID;
+
+    private String diaryID;
+
+    private static final Logger logger = LoggerFactory.getLogger(StudentAndParent.class);
+
+    StudentAndParent(Client client, String schoolID, String studentID, String diaryID) {
         this.client = client;
-        this.id = id;
+        this.schoolID = schoolID;
+        this.studentID = studentID;
+        this.diaryID = diaryID;
     }
 
-    private String getBaseUrl() {
-        return BASE_URL.replace("{ID}", getId());
-    }
+    public StudentAndParent setUp() throws IOException, VulcanException {
+        if (null == getStudentID() || "".equals(getStudentID())) {
+            Document doc = client.getPageByUrl(getSnpHomePageUrl());
 
-    public String getId() {
-        return id;
-    }
+            if (doc.select("#idSection").isEmpty()) {
+                logger.error("Expected SnP page, got page with title: {} {}", doc.title(), doc.selectFirst("body"));
+                throw new VulcanException("Nieznany błąd podczas pobierania danych. Strona: " + doc.title());
+            }
+
+            Student student = getCurrent(getStudents(doc));
+            studentID = student.getId();
+
+            Diary diary = getCurrent(getDiaries(doc));
+            diaryID = diary.getId();
+        }
 
-    public StudentAndParent storeContextCookies() throws IOException, VulcanException {
-        client.getPageByUrl(getSnpHomePageUrl());
         return this;
     }
 
+    public String getSchoolID() {
+        return schoolID;
+    }
+
+    public String getStudentID() {
+        return studentID;
+    }
+
+    private String getBaseUrl() {
+        return BASE_URL.replace("{ID}", getSchoolID());
+    }
+
     String getSnpHomePageUrl() throws IOException, VulcanException {
-        if (null != getId()) {
+        if (null != getSchoolID()) {
             return getBaseUrl();
         }
 
-        // get url to uonetplus-opiekun.vulcan.net.pl
+        // get url to uonetplus-opiekun.fakelog.cf
         Document startPage = client.getPageByUrl(START_PAGE_URL);
-        Element studentTileLink = startPage.select(".panel.linkownia.pracownik.klient > a").first();
+        Elements studentTileLink = startPage.select(".panel.linkownia.pracownik.klient > a");
 
-        if (null == studentTileLink) {
-            throw new NotLoggedInErrorException("You are probably not logged in. Force login");
+        logger.debug("studentTileLink: {}", studentTileLink.size());
+
+        if (studentTileLink.isEmpty()) {
+            throw new VulcanException("Na pewno używasz konta z dostępem do Witryny ucznia i rodzica?");
         }
 
-        String snpPageUrl = studentTileLink.attr("href");
+        String snpPageUrl = studentTileLink.last().attr("href");
 
-        this.id = getExtractedIdFromUrl(snpPageUrl);
+        this.schoolID = getExtractedIdFromUrl(snpPageUrl);
 
         return snpPageUrl;
     }
 
-    String getExtractedIdFromUrl(String snpPageUrl) throws NotLoggedInErrorException {
+    String getExtractedIdFromUrl(String snpPageUrl) throws VulcanException {
         String[] path = snpPageUrl.split(client.getHost())[1].split("/");
 
         if (5 != path.length) {
-            throw new NotLoggedInErrorException("You are probably not logged in");
+            logger.error("Expected snp url, got {}", snpPageUrl);
+            throw new VulcanException("Na pewno używasz konta z dostępem do Witryny ucznia i rodzica?");
         }
 
         return path[2];
@@ -72,8 +111,43 @@ public class StudentAndParent implements SnP {
         return e.select(".daneWiersz .wartosc").get(index - 1).text();
     }
 
+    public void setDiaryID(String id) {
+        this.diaryID = id;
+    }
+
     public Document getSnPPageDocument(String url) throws IOException, VulcanException {
-        return client.getPageByUrl(getBaseUrl() + url);
+        Map<String, String> cookies = new HashMap<>();
+        cookies.put("idBiezacyDziennik", diaryID);
+        cookies.put("idBiezacyUczen", studentID);
+
+        Document doc = client.getPageByUrl(getBaseUrl() + url, true, cookies);
+
+        if (!doc.title().startsWith("Witryna ucznia i rodzica")) {
+            logger.error("Expected SnP page, got page with title: {} {}", doc.title(), doc.selectFirst("body"));
+            throw new VulcanException("Nieznany błąd podczas pobierania danych. Strona: " + doc.title());
+        }
+
+        if (doc.title().endsWith("Strona główna")) {
+            throw new VulcanException("Sesja została nieprawidłowo zainicjowana");
+        }
+
+        return doc;
+    }
+
+    public List<Diary> getDiaries() throws IOException, VulcanException {
+        return getDiaries(client.getPageByUrl(getBaseUrl()));
+    }
+
+    private List<Diary> getDiaries(Document doc) throws IOException, VulcanException {
+        return getList(doc.select("#dziennikDropDownList option"), Diary.class);
+    }
+
+    public List<Student> getStudents() throws IOException, VulcanException {
+        return getStudents(client.getPageByUrl(getBaseUrl()));
+    }
+
+    private List<Student> getStudents(Document doc) throws IOException, VulcanException {
+        return getList(doc.select("#uczenDropDownList option"), Student.class);
     }
 
     public List<Semester> getSemesters() throws IOException, VulcanException {
@@ -87,10 +161,10 @@ public class StudentAndParent implements SnP {
 
         for (Element e : semesterOptions) {
             Semester semester = new Semester()
-                    .setId(e.text())
-                    .setNumber(e.attr("value"));
+                    .setId(e.attr("value"))
+                    .setName(e.text());
 
-            if ("selected".equals(e.attr("selected"))) {
+            if (isCurrent(e)) {
                 semester.setCurrent(true);
             }
 
@@ -100,15 +174,44 @@ public class StudentAndParent implements SnP {
         return semesters;
     }
 
-    public Semester getCurrentSemester(List<Semester> semesterList) {
-        Semester current = null;
-        for (Semester s : semesterList) {
+    @SuppressWarnings("unchecked")
+    private <T> List<T> getList(Elements options, Class<? extends ParamItem> type) throws IOException, VulcanException {
+        List<T> list = new ArrayList<>();
+
+        for (Element e : options) {
+            URL url = new URL(e.val());
+            try {
+                ParamItem item = type.newInstance()
+                        .setId(url.getQuery().split("=")[1])
+                        .setName(e.text());
+
+                if (isCurrent(e)) {
+                    item.setCurrent(true);
+                }
+
+                list.add((T) item);
+            } catch (Exception ex) {
+                throw new VulcanException("Error while trying to parse params list", ex);
+            }
+        }
+
+        return list;
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> T getCurrent(List<? extends ParamItem> list) {
+        ParamItem current = null;
+        for (ParamItem s : list) {
             if (s.isCurrent()) {
                 current = s;
                 break;
             }
         }
 
-        return current;
+        return (T) current;
+    }
+
+    private boolean isCurrent(Element e) {
+        return "selected".equals(e.attr("selected"));
     }
 }

api/src/main/java/io/github/wulkanowy/api/Vulcan.java

@@ -1,5 +1,8 @@
 package io.github.wulkanowy.api;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.io.IOException;
 
 import io.github.wulkanowy.api.attendance.AttendanceStatistics;
@@ -8,6 +11,8 @@ import io.github.wulkanowy.api.exams.ExamsWeek;
 import io.github.wulkanowy.api.grades.GradesList;
 import io.github.wulkanowy.api.grades.SubjectsList;
 import io.github.wulkanowy.api.messages.Messages;
+import io.github.wulkanowy.api.mobile.RegisterDevice;
+import io.github.wulkanowy.api.mobile.RegisteredDevices;
 import io.github.wulkanowy.api.notes.AchievementsList;
 import io.github.wulkanowy.api.notes.NotesList;
 import io.github.wulkanowy.api.school.SchoolInfo;
@@ -18,21 +23,31 @@ import io.github.wulkanowy.api.user.FamilyInformation;
 
 public class Vulcan {
 
-    private String id;
-
     private SnP snp;
 
     private Client client;
 
-    public void setCredentials(String email, String password, String symbol, String id) {
+    private String schoolId;
+
+    private String studentId;
+
+    private String diaryId;
+
+    private static final Logger logger = LoggerFactory.getLogger(Vulcan.class);
+
+    public void setCredentials(String email, String password, String symbol, String schoolId, String studentId, String diaryId) {
+        this.schoolId = schoolId;
+        this.studentId = studentId;
+        this.diaryId = diaryId;
+
         client = new Client(email, password, symbol);
 
-        this.id = id;
+        logger.debug("Client created with symbol " + symbol);
     }
 
     public Client getClient() throws NotLoggedInErrorException {
         if (null == client) {
-            throw new NotLoggedInErrorException("Use setCredentials() method first");
+            throw new NotLoggedInErrorException("Vulcan must be initialized by calling setCredentials() prior to fetch data");
         }
 
         return client;
@@ -43,20 +58,17 @@ public class Vulcan {
 
     }
 
-    public SnP getStudentAndParent() throws IOException, VulcanException {
+    public SnP getStudentAndParent() throws VulcanException, IOException {
         if (null != this.snp) {
             return this.snp;
         }
 
-        this.snp = new StudentAndParent(getClient(), id).storeContextCookies();
+        this.snp = new StudentAndParent(getClient(), schoolId, studentId, diaryId)
+                .setUp();
 
         return this.snp;
     }
 
-    public String getId() throws IOException, VulcanException {
-        return getStudentAndParent().getId();
-    }
-
     public AttendanceTable getAttendanceTable() throws IOException, VulcanException {
         return new AttendanceTable(getStudentAndParent());
     }
@@ -105,6 +117,14 @@ public class Vulcan {
         return new FamilyInformation(getStudentAndParent());
     }
 
+    public RegisteredDevices getRegisteredDevices() throws VulcanException, IOException {
+        return new RegisteredDevices(getStudentAndParent());
+    }
+
+    public RegisterDevice getRegisterDevice() throws VulcanException, IOException {
+        return new RegisterDevice(getStudentAndParent());
+    }
+
     public Messages getMessages() throws VulcanException {
         return new Messages(getClient());
     }

api/src/main/java/io/github/wulkanowy/api/VulcanException.java

@@ -1,8 +1,12 @@
 package io.github.wulkanowy.api;
 
-public abstract class VulcanException extends Exception {
+public class VulcanException extends Exception {
 
-    protected VulcanException(String message) {
+    public VulcanException(String message) {
         super(message);
     }
+
+    protected VulcanException(String message, Exception e) {
+        super(message, e);
+    }
 }

api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceTable.java

@@ -4,12 +4,8 @@ import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
 
 import java.io.IOException;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Date;
 import java.util.List;
-import java.util.Locale;
 
 import io.github.wulkanowy.api.SnP;
 import io.github.wulkanowy.api.VulcanException;
@@ -17,6 +13,9 @@ import io.github.wulkanowy.api.generic.Day;
 import io.github.wulkanowy.api.generic.Lesson;
 import io.github.wulkanowy.api.generic.Week;
 
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getDateAsTick;
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getFormattedDate;
+
 public class AttendanceTable {
 
     private final static String ATTENDANCE_PAGE_URL = "Frekwencja.mvc?data=";
@@ -27,13 +26,12 @@ public class AttendanceTable {
         this.snp = snp;
     }
 
-    public Week<Day> getWeekTable() throws IOException, ParseException, VulcanException {
+    public Week<Day> getWeekTable() throws IOException, VulcanException {
         return getWeekTable("");
     }
 
-    public Week<Day> getWeekTable(String tick) throws IOException, ParseException, VulcanException {
-        Element table = snp.getSnPPageDocument(ATTENDANCE_PAGE_URL + tick)
-
+    public Week<Day> getWeekTable(String date) throws IOException, VulcanException {
+        Element table = snp.getSnPPageDocument(ATTENDANCE_PAGE_URL + getDateAsTick(date))
                 .select(".mainContainer .presentData").first();
 
         Elements headerCells = table.select("thead th");
@@ -42,14 +40,10 @@ public class AttendanceTable {
         for (int i = 1; i < headerCells.size(); i++) {
             String[] dayHeaderCell = headerCells.get(i).html().split("<br>");
 
-            SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy", Locale.ROOT);
-            Date d = sdf.parse(dayHeaderCell[1].trim());
-            sdf.applyPattern("yyyy-MM-dd");
-
-            Day day = new Day();
-            day.setDayName(dayHeaderCell[0]);
-            day.setDate(sdf.format(d));
-            days.add(day);
+            days.add(new Day()
+                    .setDayName(dayHeaderCell[0])
+                    .setDate(getFormattedDate(dayHeaderCell[1].trim()))
+            );
         }
 
         Elements hoursInDays = table.select("tbody tr");
@@ -63,7 +57,7 @@ public class AttendanceTable {
             for (int i = 1; i < size; i++) {
                 Lesson lesson = new Lesson();
                 lesson.setDate(days.get(i - 1).getDate());
-                lesson.setNumber(hours.get(0).text());
+                lesson.setNumber(Integer.valueOf(hours.get(0).text()));
 
                 addLessonDetails(lesson, hours.get(i));
 

api/src/main/java/io/github/wulkanowy/api/exams/ExamsWeek.java

@@ -1,5 +1,6 @@
 package io.github.wulkanowy.api.exams;
 
+import org.apache.commons.lang3.StringUtils;
 import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
@@ -12,6 +13,9 @@ import io.github.wulkanowy.api.SnP;
 import io.github.wulkanowy.api.VulcanException;
 import io.github.wulkanowy.api.generic.Week;
 
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getDateAsTick;
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getFormattedDate;
+
 public class ExamsWeek {
 
     private static final String EXAMS_PAGE_URL = "Sprawdziany.mvc/Terminarz?rodzajWidoku=2&data=";
@@ -26,8 +30,8 @@ public class ExamsWeek {
         return getWeek("", true);
     }
 
-    public Week<ExamDay> getWeek(String tick, final boolean onlyNotEmpty) throws IOException, VulcanException {
-        Document examsPage = snp.getSnPPageDocument(EXAMS_PAGE_URL + tick);
+    public Week<ExamDay> getWeek(String date, final boolean onlyNotEmpty) throws IOException, VulcanException {
+        Document examsPage = snp.getSnPPageDocument(EXAMS_PAGE_URL + getDateAsTick(date));
         Elements examsDays = examsPage.select(".mainContainer > div:not(.navigation)");
 
         List<ExamDay> days = new ArrayList<>();
@@ -41,7 +45,9 @@ public class ExamsWeek {
             }
 
             if (null != dayHeading) {
-                day.setDate(dayHeading.text().split(", ")[1]);
+                String[] dateHeader = dayHeading.text().split(", ");
+                day.setDayName(StringUtils.capitalize(dateHeader[0]));
+                day.setDate(getFormattedDate(dateHeader[1]));
             }
 
             Elements exams = item.select("article");
@@ -51,15 +57,17 @@ public class ExamsWeek {
                         .setType(snp.getRowDataChildValue(e, 2))
                         .setDescription(snp.getRowDataChildValue(e, 3))
                         .setTeacher(snp.getRowDataChildValue(e, 4).split(", ")[0])
-                        .setEntryDate(snp.getRowDataChildValue(e, 4).split(", ")[1])
+                        .setEntryDate(getFormattedDate(snp.getRowDataChildValue(e, 4).split(", ")[1]))
                 );
             }
 
             days.add(day);
         }
 
+
         return new Week<ExamDay>()
-                .setStartDayDate(examsDays.select("h2").first().text().split(" ")[1])
+                .setStartDayDate(getFormattedDate(examsPage.select(".mainContainer > h2")
+                        .first().text().split(" ")[1]))
                 .setDays(days);
     }
 }

api/src/main/java/io/github/wulkanowy/api/generic/Day.java

@@ -11,10 +11,6 @@ public class Day {
 
     private String dayName = "";
 
-    private boolean isFreeDay = false;
-
-    private String freeDayName = "";
-
     public Lesson getLesson(int index) {
         return lessons.get(index);
     }
@@ -41,23 +37,8 @@ public class Day {
         return dayName;
     }
 
-    public void setDayName(String dayName) {
+    public Day setDayName(String dayName) {
         this.dayName = dayName;
-    }
-
-    public boolean isFreeDay() {
-        return isFreeDay;
-    }
-
-    public void setFreeDay(boolean freeDay) {
-        isFreeDay = freeDay;
-    }
-
-    public String getFreeDayName() {
-        return freeDayName;
-    }
-
-    public void setFreeDayName(String freeDayName) {
-        this.freeDayName = freeDayName;
+        return this;
     }
 }

api/src/main/java/io/github/wulkanowy/api/generic/Diary.java

@@ -0,0 +1,38 @@
+package io.github.wulkanowy.api.generic;
+
+public class Diary implements ParamItem {
+
+    private String id = "";
+
+    private String name = "";
+
+    private boolean current = false;
+
+    public String getId() {
+        return id;
+    }
+
+    public Diary setId(String id) {
+        this.id = id;
+        return this;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Diary setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    @Override
+    public boolean isCurrent() {
+        return current;
+    }
+
+    public Diary setCurrent(boolean current) {
+        this.current = current;
+        return this;
+    }
+}

api/src/main/java/io/github/wulkanowy/api/generic/Lesson.java

@@ -2,7 +2,7 @@ package io.github.wulkanowy.api.generic;
 
 public class Lesson {
 
-    private String number = "";
+    private int number = 0;
 
     private String subject = "";
 
@@ -48,12 +48,13 @@ public class Lesson {
 
     private boolean isExemption = false;
 
-    public String getNumber() {
+    public int getNumber() {
         return number;
     }
 
-    public void setNumber(String number) {
+    public Lesson setNumber(int number) {
         this.number = number;
+        return this;
     }
 
     public String getSubject() {

api/src/main/java/io/github/wulkanowy/api/generic/ParamItem.java

@@ -0,0 +1,12 @@
+package io.github.wulkanowy.api.generic;
+
+public interface ParamItem {
+
+    ParamItem setId(String id);
+
+    ParamItem setName(String name);
+
+    ParamItem setCurrent(boolean isCurrent);
+
+    boolean isCurrent();
+}

api/src/main/java/io/github/wulkanowy/api/generic/Semester.java

@@ -0,0 +1,37 @@
+package io.github.wulkanowy.api.generic;
+
+public class Semester implements ParamItem {
+
+    private String id = "";
+
+    private String name = "";
+
+    private boolean current = false;
+
+    public String getId() {
+        return id;
+    }
+
+    public Semester setId(String id) {
+        this.id = id;
+        return this;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Semester setName(String number) {
+        this.name = number;
+        return this;
+    }
+
+    public boolean isCurrent() {
+        return current;
+    }
+
+    public Semester setCurrent(boolean current) {
+        this.current = current;
+        return this;
+    }
+}

api/src/main/java/io/github/wulkanowy/api/generic/Student.java

@@ -0,0 +1,37 @@
+package io.github.wulkanowy.api.generic;
+
+public class Student implements ParamItem {
+
+    private String id = "";
+
+    private String name = "";
+
+    private boolean current = false;
+
+    public String getId() {
+        return id;
+    }
+
+    public Student setId(String id) {
+        this.id = id;
+        return this;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Student setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public boolean isCurrent() {
+        return current;
+    }
+
+    public Student setCurrent(boolean current) {
+        this.current = current;
+        return this;
+    }
+}

api/src/main/java/io/github/wulkanowy/api/grades/Grade.java

@@ -18,8 +18,6 @@ public class Grade {
 
     private String teacher = "";
 
-    private String semester = "";
-
     public String getSubject() {
         return subject;
     }
@@ -99,14 +97,4 @@ public class Grade {
 
         return this;
     }
-
-    public String getSemester() {
-        return semester;
-    }
-
-    public Grade setSemester(String semester) {
-        this.semester = semester;
-
-        return this;
-    }
 }

api/src/main/java/io/github/wulkanowy/api/grades/GradesList.java

@@ -5,79 +5,71 @@ import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
 
 import java.io.IOException;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Date;
 import java.util.List;
-import java.util.Locale;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import io.github.wulkanowy.api.Semester;
 import io.github.wulkanowy.api.SnP;
 import io.github.wulkanowy.api.VulcanException;
 
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getFormattedDate;
+
 public class GradesList {
 
     private static final String GRADES_PAGE_URL = "Oceny/Wszystkie?details=2&okres=";
 
-    private SnP snp = null;
-
-    private List<Grade> grades = new ArrayList<>();
+    private SnP snp;
 
     public GradesList(SnP snp) {
         this.snp = snp;
     }
 
-    private String getGradesPageUrl() {
-        return GRADES_PAGE_URL;
-    }
-
-    public List<Grade> getAll() throws IOException, ParseException, VulcanException {
-        return getAll("");
-    }
-
-    public List<Grade> getAll(String semester) throws IOException, ParseException, VulcanException {
-        Document gradesPage = snp.getSnPPageDocument(getGradesPageUrl() + semester);
+    public List<Grade> getAll(String semester) throws IOException, VulcanException {
+        Document gradesPage = snp.getSnPPageDocument(GRADES_PAGE_URL + semester);
         Elements gradesRows = gradesPage.select(".ocenySzczegoly-table > tbody > tr");
-        Semester currentSemester = snp.getCurrentSemester(snp.getSemesters(gradesPage));
+
+        List<Grade> grades = new ArrayList<>();
 
         for (Element row : gradesRows) {
             if ("Brak ocen".equals(row.select("td:nth-child(2)").text())) {
                 continue;
             }
 
-            String descriptions = row.select("td:nth-child(3)").text();
-            String symbol = descriptions.split(", ")[0];
-            String description = descriptions.replaceFirst(symbol, "").replaceFirst(", ", "");
-
-            Pattern pattern = Pattern.compile("#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})");
-            Matcher matcher = pattern.matcher(row.select("td:nth-child(2) span.ocenaCzastkowa")
-                    .attr("style"));
-
-            String color = "";
-            while (matcher.find()) {
-                color = matcher.group(1);
-            }
-
-            SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy", Locale.ROOT);
-            Date d = sdf.parse(row.select("td:nth-child(5)").text());
-            sdf.applyPattern("yyyy-MM-dd");
-
-            grades.add(new Grade()
-                    .setSubject(row.select("td:nth-child(1)").text())
-                    .setValue(row.select("td:nth-child(2)").text())
-                    .setColor(color)
-                    .setSymbol(symbol)
-                    .setDescription(description)
-                    .setWeight(row.select("td:nth-child(4)").text())
-                    .setDate(sdf.format(d))
-                    .setTeacher(row.select("td:nth-child(6)").text())
-                    .setSemester(currentSemester.getNumber())
-            );
+            grades.add(getGrade(row));
         }
 
         return grades;
     }
+
+    private Grade getGrade(Element row) {
+        String descriptions = row.select("td:nth-child(3)").text();
+
+        String symbol = descriptions.split(", ")[0];
+        String description = descriptions.replaceFirst(Pattern.quote(symbol), "").replaceFirst(", ", "");
+        String color = getColor(row.select("td:nth-child(2) span.ocenaCzastkowa").attr("style"));
+        String date = getFormattedDate(row.select("td:nth-child(5)").text());
+
+        return new Grade()
+                .setSubject(row.select("td:nth-child(1)").text())
+                .setValue(row.select("td:nth-child(2)").text())
+                .setColor(color)
+                .setSymbol(symbol)
+                .setDescription(description)
+                .setWeight(row.select("td:nth-child(4)").text())
+                .setDate(date)
+                .setTeacher(row.select("td:nth-child(6)").text());
+    }
+
+    private String getColor(String styleAttr) {
+        Pattern pattern = Pattern.compile("#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})");
+        Matcher matcher = pattern.matcher(styleAttr);
+
+        String color = "";
+        while (matcher.find()) {
+            color = matcher.group(1);
+        }
+
+        return color;
+    }
 }

api/src/main/java/io/github/wulkanowy/api/grades/SubjectsList.java

@@ -13,16 +13,21 @@ import io.github.wulkanowy.api.VulcanException;
 
 public class SubjectsList {
 
-    private static final String SUBJECTS_PAGE_URL = "Oceny/Wszystkie?details=1";
+    private static final String SUBJECTS_PAGE_URL = "Oceny/Wszystkie?details=1&okres=";
 
-    private SnP snp = null;
+    private SnP snp;
 
     public SubjectsList(SnP snp) {
         this.snp = snp;
     }
 
+
     public List<Subject> getAll() throws IOException, VulcanException {
-        Document subjectPage = snp.getSnPPageDocument(SUBJECTS_PAGE_URL);
+        return getAll("");
+    }
+
+    public List<Subject> getAll(String semester) throws IOException, VulcanException {
+        Document subjectPage = snp.getSnPPageDocument(SUBJECTS_PAGE_URL + semester);
 
         Elements rows = subjectPage.select(".ocenyZwykle-table > tbody > tr");
 

api/src/main/java/io/github/wulkanowy/api/login/Login.java

@@ -5,73 +5,121 @@ import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
 import org.jsoup.parser.Parser;
 import org.jsoup.select.Elements;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 
 import io.github.wulkanowy.api.Client;
+import io.github.wulkanowy.api.NotLoggedInErrorException;
 import io.github.wulkanowy.api.VulcanException;
 
 public class Login {
 
-    private static final String LOGIN_PAGE_URL = "{schema}://cufs.{host}/{symbol}/Account/LogOn" +
+    static final String LOGIN_PAGE_URL = "{schema}://cufs.{host}/{symbol}/Account/LogOn" +
             "?ReturnUrl=%2F{symbol}%2FFS%2FLS%3Fwa%3Dwsignin1.0%26wtrealm%3D" +
             "{schema}%253a%252f%252fuonetplus.{host}%252f{symbol}%252fLoginEndpoint.aspx%26wctx%3D" +
             "{schema}%253a%252f%252fuonetplus.{host}%252f{symbol}%252fLoginEndpoint.aspx";
 
-    private static final String LOGIN_ENDPOINT_PAGE_URL =
-            "{schema}://uonetplus.{host}/{symbol}/LoginEndpoint.aspx";
-
     private Client client;
 
-    private String symbol;
+    private static final Logger logger = LoggerFactory.getLogger(Login.class);
 
     public Login(Client client) {
         this.client = client;
     }
 
     public String login(String email, String password, String symbol) throws VulcanException, IOException {
-        String certificate = sendCredentials(email, password, symbol);
+        Document certDoc = sendCredentials(email, password);
 
-        return sendCertificate(certificate, symbol);
+        if ("Błąd".equals(certDoc.title())) {
+            client.clearCookies();
+            throw new NotLoggedInErrorException(certDoc.body().text());
+        }
+
+        return sendCertificate(certDoc, symbol);
     }
 
-    String sendCredentials(String email, String password, String symbol) throws IOException, VulcanException {
-        this.symbol = symbol;
-
-        Document html = client.postPageByUrl(LOGIN_PAGE_URL, new String[][]{
+    Document sendCredentials(String email, String password) throws IOException, VulcanException {
+        String[][] credentials = new String[][]{
                 {"LoginName", email},
                 {"Password", password}
-        });
+        };
 
-        Element errorMessage = html.select(".ErrorMessage").first();
+        Document nextDoc = sendCredentialsData(credentials, LOGIN_PAGE_URL);
+
+        Element errorMessage = nextDoc.selectFirst(".ErrorMessage, #ErrorTextLabel");
         if (null != errorMessage) {
             throw new BadCredentialsException(errorMessage.text());
         }
 
-        return html.select("input[name=wresult]").attr("value");
+        return nextDoc;
     }
 
-    String sendCertificate(String certificate, String defaultSymbol) throws IOException, VulcanException {
-        this.symbol = findSymbol(defaultSymbol, certificate);
-        client.setSymbol(this.symbol);
+    private Document sendCredentialsData(String[][] credentials, String nextUrl) throws IOException, VulcanException {
+        Element formFirst = client.getPageByUrl(nextUrl, false).selectFirst("#form1");
 
-        String title = client.postPageByUrl(LOGIN_ENDPOINT_PAGE_URL, new String[][]{
-                {"wa", "wsignin1.0"},
-                {"wresult", certificate}
-        }).select("title").text();
+        if (null != formFirst) { // only on adfs login
+            Document formSecond = client.postPageByUrl(
+                    formFirst.attr("abs:action"),
+                    getFormStateParams(formFirst, "", "")
+            );
+            credentials = getFormStateParams(formSecond, credentials[0][1], credentials[1][1]);
+            nextUrl = formSecond.selectFirst("#form1").attr("abs:action");
+        }
+
+        return client.postPageByUrl(nextUrl, credentials);
+    }
+
+    private String[][] getFormStateParams(Element form, String email, String password) {
+        return new String[][]{
+                {"__VIEWSTATE", form.select("#__VIEWSTATE").val()},
+                {"__VIEWSTATEGENERATOR", form.select("#__VIEWSTATEGENERATOR").val()},
+                {"__EVENTVALIDATION", form.select("#__EVENTVALIDATION").val()},
+                {"__db", form.select("input[name=__db]").val()},
+                {"PassiveSignInButton.x", "0"},
+                {"PassiveSignInButton.y", "0"},
+                {"SubmitButton.x", "0"},
+                {"SubmitButton.y", "0"},
+                {"UsernameTextBox", email},
+                {"PasswordTextBox", password},
+        };
+    }
+
+    String sendCertificate(Document doc, String defaultSymbol) throws IOException, VulcanException {
+        client.setSymbol(findSymbol(defaultSymbol, doc.select("input[name=wresult]").val()));
+
+        Document targetDoc = sendCertData(doc);
+        String title = targetDoc.title();
+
+        if ("Working...".equals(title)) { // on adfs login
+            logger.info("ADFS login");
+            title = sendCertData(targetDoc).title();
+        }
 
         if ("Logowanie".equals(title)) {
             throw new AccountPermissionException("No account access. Try another symbol");
         }
 
         if (!"Uonet+".equals(title)) {
-            throw new LoginErrorException("Could not log in, unknown error");
+            logger.debug("Login failed. Body: {}", targetDoc.body());
+            throw new LoginErrorException("Expected page title `UONET+`, got " + title);
         }
 
-        return this.symbol;
+        return client.getSymbol();
     }
 
-    private String findSymbol(String symbol, String certificate) {
+    private Document sendCertData(Document doc) throws IOException, VulcanException {
+        String url = doc.select("form[name=hiddenform]").attr("action");
+
+        return client.postPageByUrl(url.replaceFirst("Default", "{symbol}"), new String[][]{
+                {"wa", "wsignin1.0"},
+                {"wresult", doc.select("input[name=wresult]").val()},
+                {"wctx", doc.select("input[name=wctx]").val()}
+        });
+    }
+
+    private String findSymbol(String symbol, String certificate) throws AccountPermissionException {
         if ("Default".equals(symbol)) {
             return findSymbolInCertificate(certificate);
         }
@@ -79,15 +127,19 @@ public class Login {
         return symbol;
     }
 
-    String findSymbolInCertificate(String certificate) {
-        Elements els = Jsoup
+    String findSymbolInCertificate(String certificate) throws AccountPermissionException {
+        Elements instances = Jsoup
                 .parse(certificate.replaceAll(":", ""), "", Parser.xmlParser())
                 .select("[AttributeName=\"UserInstance\"] samlAttributeValue");
 
-        if (els.isEmpty()) {
+        if (instances.isEmpty()) { // on adfs login
             return "";
         }
 
-        return els.get(1).text();
+        if (instances.size() < 2) { // 1st index is always `Default`
+            throw new AccountPermissionException("First login detected, specify symbol");
+        }
+
+        return instances.get(1).text();
     }
 }

api/src/main/java/io/github/wulkanowy/api/mobile/RegisterDevice.kt

@@ -0,0 +1,33 @@
+package io.github.wulkanowy.api.mobile
+
+import io.github.wulkanowy.api.SnP
+import org.jsoup.nodes.Element
+
+class RegisterDevice(private val snp: SnP) {
+
+    companion object {
+        const val REGISTER_URL = "DostepMobilny.mvc/Rejestruj"
+    }
+
+    data class Token(
+            val token: String,
+            val symbol: String,
+            val pin: String
+    )
+
+    fun getToken(): Token {
+        val form = snp.getSnPPageDocument(REGISTER_URL).selectFirst("#rejestracja-formularz")
+
+        val fields = form.select(".blockElement")
+
+        return Token(
+                getValue(fields[1]),
+                getValue(fields[2]),
+                getValue(fields[3])
+        )
+    }
+
+    fun getValue(e: Element): String {
+        return e.text().split(":")[1].trim()
+    }
+}

api/src/main/java/io/github/wulkanowy/api/mobile/RegisteredDevices.kt

@@ -0,0 +1,38 @@
+package io.github.wulkanowy.api.mobile
+
+import io.github.wulkanowy.api.SnP
+import io.github.wulkanowy.api.getFormattedDate
+
+class RegisteredDevices(private val snp: SnP) {
+
+    companion object {
+        const val DEVICES_LIST_URL = "DostepMobilny.mvc"
+    }
+
+    data class Device(
+            val name: String,
+            val system: String,
+            val date: String,
+            val id: Int
+    )
+
+    fun getList(): List<Device> {
+        val items = snp.getSnPPageDocument(DEVICES_LIST_URL).select("table tbody tr")
+        val devices: MutableList<Device> = mutableListOf()
+
+        for (item in items) {
+            val cells = item.select("td")
+            val system = cells[0].text().split("(").last().removeSuffix(")")
+
+            devices.add(Device(
+                    cells[0].text().replace(" ($system)", ""),
+                    system,
+                    getFormattedDate(cells[1].text(), "dd.MM.yyyy 'godz:' HH:mm:ss", "yyyy-MM-dd HH:mm:ss"),
+                    cells[2].select("a").attr("href")
+                            .split("/").last().toInt()
+            ))
+        }
+
+        return devices
+    }
+}

api/src/main/java/io/github/wulkanowy/api/notes/AchievementsList.java

@@ -14,9 +14,7 @@ public class AchievementsList {
 
     private static final String NOTES_PAGE_URL = "UwagiOsiagniecia.mvc/Wszystkie";
 
-    private SnP snp = null;
-
-    private List<String> achievements = new ArrayList<>();
+    private SnP snp;
 
     public AchievementsList(SnP snp) {
         this.snp = snp;
@@ -27,6 +25,8 @@ public class AchievementsList {
                 .select(".mainContainer > div").get(1);
         Elements items = pageFragment.select("article");
 
+        List<String> achievements = new ArrayList<>();
+
         for (Element item : items) {
             achievements.add(item.text());
         }

api/src/main/java/io/github/wulkanowy/api/notes/NotesList.java

@@ -10,13 +10,13 @@ import java.util.List;
 import io.github.wulkanowy.api.SnP;
 import io.github.wulkanowy.api.VulcanException;
 
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getFormattedDate;
+
 public class NotesList {
 
     private static final String NOTES_PAGE_URL = "UwagiOsiagniecia.mvc/Wszystkie";
 
-    private SnP snp = null;
-
-    private List<Note> notes = new ArrayList<>();
+    private SnP snp;
 
     public NotesList(SnP snp) {
         this.snp = snp;
@@ -28,10 +28,12 @@ public class NotesList {
         Elements items = pageFragment.select("article");
         Elements dates = pageFragment.select("h2");
 
+        List<Note> notes = new ArrayList<>();
+
         int index = 0;
         for (Element item : items) {
             notes.add(new Note()
-                    .setDate(dates.get(index++).text())
+                    .setDate(getFormattedDate(dates.get(index++).text()))
                     .setTeacher(snp.getRowDataChildValue(item, 1))
                     .setCategory(snp.getRowDataChildValue(item, 2))
                     .setContent(snp.getRowDataChildValue(item, 3))

api/src/main/java/io/github/wulkanowy/api/school/SchoolInfo.java

@@ -11,7 +11,7 @@ public class SchoolInfo {
 
     private static final String SCHOOL_PAGE_URL = "Szkola.mvc/Nauczyciele";
 
-    private SnP snp = null;
+    private SnP snp;
 
     public SchoolInfo(SnP snp) {
         this.snp = snp;

api/src/main/java/io/github/wulkanowy/api/school/TeachersInfo.java

@@ -15,7 +15,7 @@ public class TeachersInfo {
 
     private static final String SCHOOL_PAGE_URL = "Szkola.mvc/Nauczyciele";
 
-    private SnP snp = null;
+    private SnP snp;
 
     public TeachersInfo(SnP snp) {
         this.snp = snp;

api/src/main/java/io/github/wulkanowy/api/timetable/Timetable.java

@@ -3,61 +3,64 @@ package io.github.wulkanowy.api.timetable;
 import org.apache.commons.lang3.StringUtils;
 import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
-import java.util.Date;
 import java.util.List;
-import java.util.Locale;
 
 import io.github.wulkanowy.api.SnP;
 import io.github.wulkanowy.api.VulcanException;
-import io.github.wulkanowy.api.generic.Day;
 import io.github.wulkanowy.api.generic.Lesson;
 import io.github.wulkanowy.api.generic.Week;
 
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getDateAsTick;
+import static io.github.wulkanowy.api.DateTimeUtilsKt.getFormattedDate;
+
 public class Timetable {
 
-    private static final String TIMETABLE_PAGE_URL = "Lekcja.mvc/PlanLekcji?data=";
+    private static final String TIMETABLE_PAGE_URL = "Lekcja.mvc/PlanZajec?data=";
 
     private SnP snp;
 
+    private static final Logger logger = LoggerFactory.getLogger(Timetable.class);
+
     public Timetable(SnP snp) {
         this.snp = snp;
     }
 
-    public Week<Day> getWeekTable() throws IOException, ParseException, VulcanException {
+    public Week<TimetableDay> getWeekTable() throws IOException, VulcanException {
         return getWeekTable("");
     }
 
-    public Week<Day> getWeekTable(final String tick) throws IOException, ParseException, VulcanException {
-        Element table = snp.getSnPPageDocument(TIMETABLE_PAGE_URL + tick)
+    public Week<TimetableDay> getWeekTable(final String date) throws IOException, VulcanException {
+        Element table = snp.getSnPPageDocument(TIMETABLE_PAGE_URL + getDateAsTick(date))
                 .select(".mainContainer .presentData").first();
 
-        List<Day> days = getDays(table.select("thead th"));
+        List<TimetableDay> days = getDays(table.select("thead th"));
 
         setLessonToDays(table, days);
 
-        return new Week<Day>()
+        return new Week<TimetableDay>()
                 .setStartDayDate(days.get(0).getDate())
                 .setDays(days);
     }
 
-    private List<Day> getDays(Elements tableHeaderCells) throws ParseException {
-        List<Day> days = new ArrayList<>();
+    private List<TimetableDay> getDays(Elements tableHeaderCells) {
+        List<TimetableDay> days = new ArrayList<>();
+        int numberOfDays = tableHeaderCells.size();
 
-        for (int i = 2; i < 7; i++) {
+        if (numberOfDays > 7) {
+            logger.info("Number of days: {}", numberOfDays);
+        }
+
+        for (int i = 2; i < numberOfDays; i++) {
             String[] dayHeaderCell = tableHeaderCells.get(i).html().split("<br>");
 
-            SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy", Locale.ROOT);
-            Date d = sdf.parse(dayHeaderCell[1].trim());
-            sdf.applyPattern("yyyy-MM-dd");
-
-            Day day = new Day();
+            TimetableDay day = new TimetableDay();
             day.setDayName(dayHeaderCell[0]);
-            day.setDate(sdf.format(d));
+            day.setDate(getFormattedDate(dayHeaderCell[1].trim()));
 
             if (tableHeaderCells.get(i).hasClass("free-day")) {
                 day.setFreeDay(true);
@@ -70,7 +73,7 @@ public class Timetable {
         return days;
     }
 
-    private void setLessonToDays(Element table, List<Day> days) {
+    private void setLessonToDays(Element table, List<TimetableDay> days) {
         for (Element row : table.select("tbody tr")) {
             Elements hours = row.select("td");
 
@@ -82,7 +85,7 @@ public class Timetable {
                 lesson.setStartTime(startEndEnd[0]);
                 lesson.setEndTime(startEndEnd[1]);
                 lesson.setDate(days.get(i - 2).getDate());
-                lesson.setNumber(hours.get(0).text());
+                lesson.setNumber(Integer.valueOf(hours.get(0).text()));
 
                 addLessonDetails(lesson, hours.get(i).select("div"));
 
@@ -99,7 +102,16 @@ public class Timetable {
                 addLessonInfoFromElement(lesson, e.first());
                 break;
             case 2:
-                addLessonInfoFromElement(lesson, e.last());
+                Element span = e.last().selectFirst("span");
+                if (null == span) {
+                    addLessonInfoFromElement(lesson, e.first());
+                } else if (span.hasClass(LessonTypes.CLASS_MOVED_OR_CANCELED)) {
+                    lesson.setNewMovedInOrChanged(true);
+                    lesson.setDescription("poprzednio: " + getLessonAndGroupInfoFromSpan(span)[0]);
+                    addLessonInfoFromElement(lesson, e.first());
+                } else {
+                    addLessonInfoFromElement(lesson, e.last());
+                }
                 break;
             case 3:
                 addLessonInfoFromElement(lesson, e.get(1));
@@ -114,7 +126,9 @@ public class Timetable {
         Elements warn = e.select(".uwaga-panel");
 
         if (!warn.isEmpty()) {
-            e.select(".x-treelabel-rlz").last().text("(" + warn.text() + ")");
+            e.select("span").last()
+                    .addClass("x-treelabel-rlz")
+                    .text(warn.text());
             e.remove(1);
         }
     }
@@ -122,6 +136,11 @@ public class Timetable {
     private void addLessonInfoFromElement(Lesson lesson, Element e) {
         Elements spans = e.select("span");
 
+        if (spans.isEmpty()) {
+            logger.warn("Lesson span is empty");
+            return;
+        }
+
         addTypeInfo(lesson, spans);
         addNormalLessonInfo(lesson, spans);
         addChangesInfo(lesson, spans);
@@ -165,7 +184,8 @@ public class Timetable {
             lesson.setRoom(spans.get(5).text());
             lesson.setMovedOrCanceled(false);
             lesson.setNewMovedInOrChanged(true);
-            lesson.setDescription(StringUtils.substringBetween(spans.last().text(), "(", ")")
+            lesson.setDescription(StringUtils.defaultString(StringUtils.substringBetween(
+                    spans.last().text(), "(", ")"), spans.last().text())
                     + " (poprzednio: " + spans.get(0).text() + ")");
         } else if (9 == spans.size()) {
             String[] subjectAndGroupInfo = getLessonAndGroupInfoFromSpan(spans.get(4));
@@ -176,13 +196,15 @@ public class Timetable {
             lesson.setMovedOrCanceled(false);
             lesson.setNewMovedInOrChanged(true);
             lesson.setDivisionIntoGroups(true);
-            lesson.setDescription(StringUtils.substringBetween(spans.last().text(), "(", ")")
+            lesson.setDescription(StringUtils.defaultString(StringUtils.substringBetween(
+                    spans.last().text(), "(", ")"), spans.last().text())
                     + " (poprzednio: " + getLessonAndGroupInfoFromSpan(spans.get(0))[0] + ")");
         } else if (4 <= spans.size()) {
             lesson.setSubject(spans.get(0).text());
             lesson.setTeacher(spans.get(1).text());
             lesson.setRoom(spans.get(2).text());
-            lesson.setDescription(StringUtils.substringBetween(spans.last().text(), "(", ")"));
+            lesson.setDescription(StringUtils.defaultString(StringUtils.substringBetween(
+                    spans.last().text(), "(", ")"), spans.last().text()));
         }
     }
 
@@ -205,12 +227,17 @@ public class Timetable {
     }
 
     private String[] getLessonAndGroupInfoFromSpan(Element span) {
+        if (!span.text().contains("[")) {
+            return new String[] {span.text(), ""};
+        }
+
         String[] subjectNameArray = span.text().split(" ");
         String groupName = subjectNameArray[subjectNameArray.length - 1];
 
         return new String[]{
                 span.text().replace(" " + groupName, ""),
-                StringUtils.substringBetween(groupName, "[", "]")
+                StringUtils.defaultString(StringUtils.substringBetween(
+                        groupName, "[", "]"), groupName)
         };
     }
 }

api/src/main/java/io/github/wulkanowy/api/timetable/TimetableDay.java

@@ -0,0 +1,26 @@
+package io.github.wulkanowy.api.timetable;
+
+import io.github.wulkanowy.api.generic.Day;
+
+public class TimetableDay extends Day {
+
+    private boolean isFreeDay = false;
+
+    private String freeDayName = "";
+
+    public boolean isFreeDay() {
+        return isFreeDay;
+    }
+
+    public void setFreeDay(boolean freeDay) {
+        isFreeDay = freeDay;
+    }
+
+    public String getFreeDayName() {
+        return freeDayName;
+    }
+
+    public void setFreeDayName(String freeDayName) {
+        this.freeDayName = freeDayName;
+    }
+}

api/src/test/java/io/github/wulkanowy/api/ClientTest.java

@@ -1,13 +1,10 @@
 package io.github.wulkanowy.api;
 
-import org.hamcrest.CoreMatchers;
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
 import org.junit.Assert;
 import org.junit.Test;
 
-import io.github.wulkanowy.api.login.Login;
-
 public class ClientTest {
 
     private String getFixtureAsString(String fixtureFileName) {
@@ -28,7 +25,7 @@ public class ClientTest {
 
         Document doc = Jsoup.parse(getFixtureAsString("login/Logowanie-success.html"));
 
-        Assert.assertEquals(doc, client.checkForErrors(doc));
+        Assert.assertEquals(doc, client.checkForErrors(doc, 200));
     }
 
     @Test(expected = VulcanOfflineException.class)
@@ -37,7 +34,7 @@ public class ClientTest {
 
         Document doc = Jsoup.parse(getFixtureAsString("login/PrzerwaTechniczna.html"));
 
-        client.checkForErrors(doc);
+        client.checkForErrors(doc, 200);
     }
 
     @Test(expected = NotLoggedInErrorException.class)
@@ -46,21 +43,7 @@ public class ClientTest {
 
         Document doc = Jsoup.parse(getFixtureAsString("login/Logowanie-notLoggedIn.html"));
 
-        client.checkForErrors(doc);
-    }
-
-    @Test
-    public void getClientTest() throws Exception {
-        Client client = new Client("", "", "");
-
-        Assert.assertThat(client.getLogin(), CoreMatchers.instanceOf(Login.class));
-    }
-
-    @Test
-    public void getClientTwiceTest() throws Exception {
-        Client client = new Client("", "", "");
-
-        Assert.assertEquals(client.getLogin(), client.getLogin());
+        client.checkForErrors(doc, 200);
     }
 
     @Test

api/src/test/java/io/github/wulkanowy/api/DateTimeUtilsTest.kt

@@ -0,0 +1,53 @@
+package io.github.wulkanowy.api
+
+import org.junit.Assert
+import org.junit.Test
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.*
+
+class DateTimeUtilsTest {
+
+    @Test
+    fun getTicksDateObjectTest() {
+        val format = SimpleDateFormat("dd.MM.yyyy", Locale.ROOT)
+        format.timeZone = TimeZone.getTimeZone("UTC")
+        val date = format.parse("31.07.2017")
+
+        Assert.assertEquals(636370560000000000L, getDateAsTick(date))
+
+        val calendar = Calendar.getInstance()
+        calendar.time = date
+        calendar.add(Calendar.DAY_OF_YEAR, -14)
+        val dateTwoWeekBefore = calendar.time
+
+        Assert.assertEquals(636358464000000000L, getDateAsTick(dateTwoWeekBefore))
+    }
+
+    @Test(expected = ParseException::class)
+    fun getTicsStringInvalidFormatTest() {
+        Assert.assertEquals(636370560000000000L, getDateAsTick("31.07.2017", "dd.MMM.yyyy"))
+    }
+
+    @Test
+    fun getTicsStringFormatTest() {
+        Assert.assertEquals(636370560000000000L, getDateAsTick("31.07.2017", "dd.MM.yyyy"))
+    }
+
+    @Test
+    fun getTicsStringTest() {
+        Assert.assertEquals("636370560000000000", getDateAsTick("2017-07-31"))
+        Assert.assertEquals("636334272000000000", getDateAsTick("2017-06-19"))
+        Assert.assertEquals("636189120000000000", getDateAsTick("2017-01-02"))
+        Assert.assertEquals("636080256000000000", getDateAsTick("2016-08-29"))
+    }
+
+    @Test
+    fun getDateTest() {
+        val format = SimpleDateFormat("dd.MM.yyyy", Locale.ROOT)
+        format.timeZone = TimeZone.getTimeZone("UTC")
+        val date = format.parse("31.07.2017")
+
+        Assert.assertEquals(date, getDate(636370560000000000L))
+    }
+}

api/src/test/java/io/github/wulkanowy/api/StudentAndParentTest.java

@@ -7,9 +7,12 @@ import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mockito;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
+import io.github.wulkanowy.api.generic.Semester;
+
 public class StudentAndParentTest {
 
     private Client client;
@@ -22,18 +25,21 @@ public class StudentAndParentTest {
 
         client = Mockito.mock(Client.class);
         Mockito.when(client.getPageByUrl(Mockito.anyString())).thenReturn(gradesPageDocument);
+        Mockito.when(client.getPageByUrl(
+                Mockito.anyString(),
+                Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(gradesPageDocument);
     }
 
     @Test
-    public void snpTest() throws Exception {
-        StudentAndParent snp = new StudentAndParent(client, "id123");
-        Assert.assertEquals("id123", snp.getId());
+    public void snpTest() {
+        StudentAndParent snp = new StudentAndParent(client, "id123", null, null);
+        Assert.assertEquals("id123", snp.getSchoolID());
     }
 
     @Test
     public void getSnpPageUrlWithIdTest() throws Exception {
         Assert.assertEquals("{schema}://uonetplus-opiekun.{host}/{symbol}/123456/",
-                (new StudentAndParent(client, "123456")).getSnpHomePageUrl());
+                (new StudentAndParent(client, "123456", null, null)).getSnpHomePageUrl());
     }
 
     @Test
@@ -43,20 +49,20 @@ public class StudentAndParentTest {
 
         Mockito.when(client.getHost()).thenReturn("vulcan.net.pl");
         Mockito.when(client.getPageByUrl(Mockito.anyString())).thenReturn(startPageDocument);
-        StudentAndParent snp = new StudentAndParent(client, null);
+        StudentAndParent snp = new StudentAndParent(client, null, null, null);
 
         Assert.assertEquals("https://uonetplus-opiekun.vulcan.net.pl/symbol/534213/Start/Index/",
                 snp.getSnpHomePageUrl());
     }
 
-    @Test(expected = NotLoggedInErrorException.class)
+    @Test(expected = VulcanException.class)
     public void getSnpPageUrlWithWrongPage() throws Exception {
         Document wrongPageDocument = Jsoup.parse(
                 FixtureHelper.getAsString(getClass().getResourceAsStream("OcenyWszystkie-semester.html"))
         );
 
         Mockito.when(client.getPageByUrl(Mockito.anyString())).thenReturn(wrongPageDocument);
-        StudentAndParent snp = new StudentAndParent(client, null);
+        StudentAndParent snp = new StudentAndParent(client, null, null, null);
 
         snp.getSnpHomePageUrl();
     }
@@ -64,7 +70,7 @@ public class StudentAndParentTest {
     @Test
     public void getExtractedIDStandardTest() throws Exception {
         Mockito.when(client.getHost()).thenReturn("vulcan.net.pl");
-        StudentAndParent snp = new StudentAndParent(client, "symbol");
+        StudentAndParent snp = new StudentAndParent(client, "symbol", null, null);
         Assert.assertEquals("123456", snp.getExtractedIdFromUrl("https://uonetplus-opiekun"
                 + ".vulcan.net.pl/powiat/123456/Start/Index/"));
     }
@@ -72,52 +78,81 @@ public class StudentAndParentTest {
     @Test
     public void getExtractedIDDemoTest() throws Exception {
         Mockito.when(client.getHost()).thenReturn("vulcan.net.pl");
-        StudentAndParent snp = new StudentAndParent(client, "symbol");
+        StudentAndParent snp = new StudentAndParent(client, "symbol", null, null);
         Assert.assertEquals("demo12345",
                 snp.getExtractedIdFromUrl("https://uonetplus-opiekun.vulcan.net.pl/demoupowiat/demo12345/Start/Index/"));
     }
 
-    @Test(expected = NotLoggedInErrorException.class)
+    @Test(expected = VulcanException.class)
     public void getExtractedIDNotLoggedTest() throws Exception {
         Mockito.when(client.getHost()).thenReturn("vulcan.net.pl");
-        StudentAndParent snp = new StudentAndParent(client, "symbol");
+        StudentAndParent snp = new StudentAndParent(client, "symbol", null, null);
         Assert.assertEquals("123",
                 snp.getExtractedIdFromUrl("https://uonetplus.vulcan.net.pl/powiat/"));
     }
 
     @Test
     public void getSemestersTest() throws Exception {
-        SnP snp = new StudentAndParent(client, "123456");
+        SnP snp = new StudentAndParent(client, "123456", null, null);
         List<Semester> semesters = snp.getSemesters();
 
         Assert.assertEquals(2, semesters.size());
 
-        Assert.assertEquals("1", semesters.get(0).getId());
-        Assert.assertEquals("1234", semesters.get(0).getNumber());
+        Assert.assertEquals("1", semesters.get(0).getName());
+        Assert.assertEquals("1234", semesters.get(0).getId());
         Assert.assertFalse(semesters.get(0).isCurrent());
 
-        Assert.assertEquals("2", semesters.get(1).getId());
-        Assert.assertEquals("1235", semesters.get(1).getNumber());
+        Assert.assertEquals("2", semesters.get(1).getName());
+        Assert.assertEquals("1235", semesters.get(1).getId());
         Assert.assertTrue(semesters.get(1).isCurrent());
     }
 
     @Test
-    public void getCurrentSemesterTest() throws Exception {
+    public void getCurrentSemesterTest() {
         List<Semester> semesters = new ArrayList<>();
-        semesters.add(new Semester().setNumber("1500100900").setId("1").setCurrent(false));
-        semesters.add(new Semester().setNumber("1500100901").setId("2").setCurrent(true));
+        semesters.add(new Semester().setName("1500100900").setId("1").setCurrent(false));
+        semesters.add(new Semester().setName("1500100901").setId("2").setCurrent(true));
 
-        SnP snp = new StudentAndParent(client, "");
-        Assert.assertTrue(snp.getCurrentSemester(semesters).isCurrent());
-        Assert.assertEquals("2", snp.getCurrentSemester(semesters).getId());
-        Assert.assertEquals("1500100901", snp.getCurrentSemester(semesters).getNumber());
+        SnP snp = new StudentAndParent(client, "", null, null);
+        Semester semester = snp.getCurrent(semesters);
+
+        Assert.assertTrue(semester.isCurrent());
+        Assert.assertEquals("2", semester.getId());
+        Assert.assertEquals("1500100901", semester.getName());
     }
 
     @Test
-    public void getCurrentSemesterFromEmptyTest() throws Exception {
-        SnP snp = new StudentAndParent(client, "");
+    public void getCurrentSemesterFromEmptyTest() {
+        SnP snp = new StudentAndParent(client, "", null, null);
         List<Semester> semesters = new ArrayList<>();
 
-        Assert.assertNull(snp.getCurrentSemester(semesters));
+        Assert.assertNull(snp.getCurrent(semesters));
+    }
+
+    @Test
+    public void getDiariesAndStudentTest() throws IOException, VulcanException {
+        String input = FixtureHelper.getAsString(getClass().getResourceAsStream("WitrynaUczniaIRodzica.html"));
+        Document snpHome = Jsoup.parse(input);
+
+        client = Mockito.mock(Client.class);
+        Mockito.when(client.getPageByUrl(Mockito.anyString())).thenReturn(snpHome);
+        SnP snp = new StudentAndParent(client, "", null, null);
+
+        snp.setUp();
+
+        Assert.assertEquals("3Ti 2017", snp.getDiaries().get(0).getName());
+        Assert.assertEquals("2Ti 2016", snp.getDiaries().get(1).getName());
+        Assert.assertEquals("1Ti 2015", snp.getDiaries().get(2).getName());
+
+        Assert.assertEquals("1300", snp.getDiaries().get(0).getId());
+        Assert.assertEquals("1200", snp.getDiaries().get(1).getId());
+        Assert.assertEquals("1100", snp.getDiaries().get(2).getId());
+
+        Assert.assertTrue(snp.getDiaries().get(0).isCurrent());
+        Assert.assertFalse(snp.getDiaries().get(1).isCurrent());
+        Assert.assertFalse(snp.getDiaries().get(2).isCurrent());
+
+        Assert.assertEquals("Jan Kowal", snp.getStudents().get(0).getName());
+        Assert.assertEquals("100", snp.getStudents().get(0).getId());
     }
 }

api/src/test/java/io/github/wulkanowy/api/StudentAndParentTestCase.java

@@ -5,6 +5,8 @@ import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
 import org.mockito.Mockito;
 
+import io.github.wulkanowy.api.generic.Semester;
+
 public abstract class StudentAndParentTestCase {
 
     protected StudentAndParent getSnp(String fixtureFileName) throws Exception {
@@ -16,7 +18,7 @@ public abstract class StudentAndParentTestCase {
         Mockito.when(snp.getSnPPageDocument(Mockito.anyString()))
                 .thenReturn(tablePageDocument);
         Mockito.when(snp.getSemesters(Mockito.any(Document.class))).thenCallRealMethod();
-        Mockito.when(snp.getCurrentSemester(Mockito.<Semester>anyList()))
+        Mockito.when(snp.getCurrent(Mockito.<Semester>anyList()))
                 .thenCallRealMethod();
         Mockito.when(snp.getRowDataChildValue(Mockito.any(Element.class),
                 Mockito.anyInt())).thenCallRealMethod();

api/src/test/java/io/github/wulkanowy/api/VulcanTest.java

@@ -16,7 +16,7 @@ public class VulcanTest {
     @Test
     public void getClientTest() throws Exception {
         Vulcan vulcan = new Vulcan();
-        vulcan.setCredentials("email", "password", "symbol", null);
+        vulcan.setCredentials("email", "password", "symbol", null, null, null);
 
         Assert.assertThat(vulcan.getClient(), CoreMatchers.instanceOf(Client.class));
     }
@@ -24,7 +24,7 @@ public class VulcanTest {
     @Test
     public void getClientTwiceTest() throws Exception {
         Vulcan vulcan = new Vulcan();
-        vulcan.setCredentials("email", "password", "symbol", null);
+        vulcan.setCredentials("email", "password", "symbol", null, null, null);
 
         Assert.assertEquals(vulcan.getClient(), vulcan.getClient());
     }

api/src/test/java/io/github/wulkanowy/api/exams/ExamsWeekTest.java

@@ -12,20 +12,25 @@ public class ExamsWeekTest extends StudentAndParentTestCase {
 
     private ExamsWeek onePerDay;
 
+    private ExamsWeek empty;
+
     @Before
     public void getCurrent() throws Exception {
         onePerDay = new ExamsWeek(getSnp("Sprawdziany-one-per-day.html"));
+        empty = new ExamsWeek(getSnp("Sprawdziany-empty.html"));
     }
 
     @Test
     public void getWeekTest() throws Exception {
-        Assert.assertEquals("23.10.2017", onePerDay.getCurrent().getStartDayDate());
+        Assert.assertEquals("2017-10-23", onePerDay.getCurrent().getStartDayDate());
+        Assert.assertEquals("2018-04-30", empty.getCurrent().getStartDayDate());
     }
 
     @Test
     public void getDaysListTest() throws Exception {
         Assert.assertEquals(3, onePerDay.getCurrent().getDays().size());
         Assert.assertEquals(7, onePerDay.getWeek("", false).getDays().size());
+        Assert.assertEquals(0, empty.getCurrent().getDays().size());
     }
 
     @Test
@@ -45,9 +50,18 @@ public class ExamsWeekTest extends StudentAndParentTestCase {
     public void getDayDateTest() throws Exception {
         List<ExamDay> dayList = onePerDay.getCurrent().getDays();
 
-        Assert.assertEquals("23.10.2017", dayList.get(0).getDate());
-        Assert.assertEquals("24.10.2017", dayList.get(1).getDate());
-        Assert.assertEquals("27.10.2017", dayList.get(2).getDate());
+        Assert.assertEquals("2017-10-23", dayList.get(0).getDate());
+        Assert.assertEquals("2017-10-24", dayList.get(1).getDate());
+        Assert.assertEquals("2017-10-27", dayList.get(2).getDate());
+    }
+
+    @Test
+    public void getDayNameTest() throws Exception {
+        List<ExamDay> dayList = onePerDay.getCurrent().getDays();
+
+        Assert.assertEquals("Poniedziałek", dayList.get(0).getDayName());
+        Assert.assertEquals("Wtorek", dayList.get(1).getDayName());
+        Assert.assertEquals("Piątek", dayList.get(2).getDayName());
     }
 
     @Test
@@ -90,8 +104,8 @@ public class ExamsWeekTest extends StudentAndParentTestCase {
     public void getExamEntryDateTest() throws Exception {
         List<ExamDay> dayList = onePerDay.getCurrent().getDays();
 
-        Assert.assertEquals("16.10.2017", dayList.get(0).getExamList().get(0).getEntryDate());
-        Assert.assertEquals("17.10.2017", dayList.get(1).getExamList().get(0).getEntryDate());
-        Assert.assertEquals("16.10.2017", dayList.get(2).getExamList().get(0).getEntryDate());
+        Assert.assertEquals("2017-10-16", dayList.get(0).getExamList().get(0).getEntryDate());
+        Assert.assertEquals("2017-10-17", dayList.get(1).getExamList().get(0).getEntryDate());
+        Assert.assertEquals("2017-10-16", dayList.get(2).getExamList().get(0).getEntryDate());
     }
 }

api/src/test/java/io/github/wulkanowy/api/grades/GradesListTest.java

@@ -19,12 +19,12 @@ public class GradesListTest extends StudentAndParentTestCase {
 
     @Test
     public void getAllTest() throws Exception {
-        Assert.assertEquals(6, filled.getAll().size()); // 2 items are skipped
+        Assert.assertEquals(7, filled.getAll("").size()); // 2 items are skipped
     }
 
     @Test
     public void getSubjectTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("Zajęcia z wychowawcą", list.get(0).getSubject());
         Assert.assertEquals("Język angielski", list.get(3).getSubject());
@@ -34,7 +34,7 @@ public class GradesListTest extends StudentAndParentTestCase {
 
     @Test
     public void getValueTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("5", list.get(0).getValue());
         Assert.assertEquals("5", list.get(3).getValue());
@@ -44,7 +44,7 @@ public class GradesListTest extends StudentAndParentTestCase {
 
     @Test
     public void getColorTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("000000", list.get(0).getColor());
         Assert.assertEquals("1289F7", list.get(3).getColor());
@@ -54,27 +54,29 @@ public class GradesListTest extends StudentAndParentTestCase {
 
     @Test
     public void getSymbolTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("A1", list.get(0).getSymbol());
         Assert.assertEquals("BW3", list.get(3).getSymbol());
         Assert.assertEquals("STR", list.get(4).getSymbol());
         Assert.assertEquals("K", list.get(5).getSymbol());
+        Assert.assertEquals("+Odp", list.get(6).getSymbol());
     }
 
     @Test
     public void getDescriptionTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("Dzień Kobiet w naszej klasie", list.get(0).getDescription());
         Assert.assertEquals("Writing", list.get(3).getDescription());
         Assert.assertEquals("", list.get(4).getDescription());
         Assert.assertEquals("Kordian", list.get(5).getDescription());
+        Assert.assertEquals("Kordian", list.get(6).getDescription());
     }
 
     @Test
     public void getWeightTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("1,00", list.get(0).getWeight());
         Assert.assertEquals("3,00", list.get(3).getWeight());
@@ -84,7 +86,7 @@ public class GradesListTest extends StudentAndParentTestCase {
 
     @Test
     public void getDateTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("2017-03-21", list.get(0).getDate());
         Assert.assertEquals("2017-06-02", list.get(3).getDate());
@@ -94,21 +96,11 @@ public class GradesListTest extends StudentAndParentTestCase {
 
     @Test
     public void getTeacherTest() throws Exception {
-        List<Grade> list = filled.getAll();
+        List<Grade> list = filled.getAll("");
 
         Assert.assertEquals("Patryk Maciejewski", list.get(0).getTeacher());
         Assert.assertEquals("Oliwia Woźniak", list.get(3).getTeacher());
         Assert.assertEquals("Klaudia Dziedzic", list.get(4).getTeacher());
         Assert.assertEquals("Amelia Stępień", list.get(5).getTeacher());
     }
-
-    @Test
-    public void getSemesterTest() throws Exception {
-        List<Grade> list = filled.getAll();
-
-        Assert.assertEquals("7654321", list.get(0).getSemester());
-        Assert.assertEquals("7654321", list.get(3).getSemester());
-        Assert.assertEquals("7654321", list.get(4).getSemester());
-        Assert.assertEquals("7654321", list.get(5).getSemester());
-    }
 }

api/src/test/java/io/github/wulkanowy/api/login/LoginTest.java

@@ -11,86 +11,115 @@ import io.github.wulkanowy.api.FixtureHelper;
 
 public class LoginTest {
 
+    private Document getFixtureAsDocument(String fixtureFileName) {
+        return Jsoup.parse(getFixtureAsString(fixtureFileName));
+    }
+
     private String getFixtureAsString(String fixtureFileName) {
         return FixtureHelper.getAsString(getClass().getResourceAsStream(fixtureFileName));
     }
 
     private Client getClient(String fixtureFileName) throws Exception {
-        Document doc = Jsoup.parse(getFixtureAsString(fixtureFileName));
+        Document doc = getFixtureAsDocument(fixtureFileName);
 
         Client client = Mockito.mock(Client.class);
         Mockito.when(client.postPageByUrl(Mockito.anyString(), Mockito.any(String[][].class))).thenReturn(doc);
+        Mockito.when(client.getPageByUrl(Mockito.anyString(), Mockito.anyBoolean())).thenReturn(doc);
 
         return client;
     }
 
     @Test
     public void loginTest() throws Exception {
-        Login login = new Login(getClient("Logowanie-success.html"));
+        Client client = getClient("Logowanie-success.html");
+        Mockito.when(client.getPageByUrl(Mockito.anyString(), Mockito.anyBoolean()))
+                .thenReturn(getFixtureAsDocument("Logowanie-error.html"));
+        Mockito.when(client.postPageByUrl(Mockito.eq(Login.LOGIN_PAGE_URL), Mockito.any(String[][].class)))
+                .thenReturn(getFixtureAsDocument("Logowanie-certyfikat.html"));
+        Mockito.doCallRealMethod().when(client).setSymbol(Mockito.anyString());
+        Mockito.when(client.getSymbol()).thenCallRealMethod();
+        Login login = new Login(client);
 
         Assert.assertEquals("d123", login.login("a@a", "pswd", "d123"));
     }
 
     @Test(expected = BadCredentialsException.class)
     public void sendWrongCredentialsTest() throws Exception {
-        Login login = new Login(getClient("Logowanie-error.html"));
+        Client client = getClient("Logowanie-error.html");
+        Mockito.when(client.getPageByUrl(Mockito.anyString(), Mockito.anyBoolean()))
+                .thenReturn(getFixtureAsDocument("Logowanie-error.html")); // -error.html because it html with form used by
+        Login login = new Login(client);
 
-        login.sendCredentials("a@a", "pswd", "d123");
+        login.sendCredentials("a@a", "pswd");
     }
 
     @Test
     public void sendCredentialsCertificateTest() throws Exception {
-        Login login = new Login(getClient("Logowanie-certyfikat.html"));
+        Client client = getClient("Logowanie-certyfikat.html");
+        Mockito.when(client.getPageByUrl(Mockito.anyString(), Mockito.anyBoolean()))
+                .thenReturn(getFixtureAsDocument("Logowanie-error.html")); // -error.html because it html with form used by
+        Login login = new Login(client);
 
         Assert.assertEquals(
-                getFixtureAsString("cert.xml").replaceAll("\\s+",""),
-                login.sendCredentials("a@a", "passwd", "d123").replaceAll("\\s+","")
+                getFixtureAsString("cert-stock.xml").replaceAll("\\s+", ""),
+                login.sendCredentials("a@a", "passwd")
+                        .select("input[name=wresult]")
+                        .attr("value")
+                        .replaceAll("\\s+", "")
         );
     }
 
     @Test
     public void sendCertificateNotDefaultSymbolSuccessTest() throws Exception {
-        Login login = new Login(getClient("Logowanie-success.html"));
+        Client client = getClient("Logowanie-success.html");
+        Mockito.doCallRealMethod().when(client).setSymbol(Mockito.anyString());
+        Mockito.when(client.getSymbol()).thenCallRealMethod();
+        Login login = new Login(client);
 
-        Assert.assertEquals("wulkanowyschool321",
-                login.sendCertificate("", "wulkanowyschool321"));
+        Assert.assertEquals("wulkanowyschool321", login.sendCertificate(
+                getFixtureAsDocument("Logowanie-certyfikat.html"), "wulkanowyschool321"));
     }
 
     @Test
     public void sendCertificateDefaultSymbolSuccessTest() throws Exception {
-        Login login = new Login(getClient("Logowanie-success.html"));
+        Client client = getClient("Logowanie-success.html");
+        Mockito.doCallRealMethod().when(client).setSymbol(Mockito.anyString());
+        Mockito.when(client.getSymbol()).thenCallRealMethod();
+        Login login = new Login(client);
 
         Assert.assertEquals("demo12345",
-                login.sendCertificate(getFixtureAsString("cert.xml"), "Default"));
+                login.sendCertificate(getFixtureAsDocument("Logowanie-certyfikat.html"), "Default"));
     }
 
     @Test(expected = AccountPermissionException.class)
     public void sendCertificateAccountPermissionTest() throws Exception {
-        Login login = new Login(getClient("Logowanie-brak-dostepu.html"));
+        Client client = getClient("Logowanie-brak-dostepu.html");
 
-        login.sendCertificate(getFixtureAsString("cert.xml"), "demo123");
+        Login login = new Login(client);
+
+        login.sendCertificate(getFixtureAsDocument("Logowanie-certyfikat.html"), "demo123");
     }
 
     @Test(expected = LoginErrorException.class)
     public void sendCertificateLoginErrorTest() throws Exception {
         Login login = new Login(getClient("Logowanie-certyfikat.html")); // change to other document
 
-        login.sendCertificate(getFixtureAsString("cert.xml"), "demo123");
+        login.sendCertificate(getFixtureAsDocument("Logowanie-certyfikat.html"), "demo123");
     }
 
     @Test
     public void findSymbolInCertificateTest() throws Exception {
         Login login = new Login(getClient("Logowanie-certyfikat.html"));
 
-        String certificate = getFixtureAsString("cert.xml");
+        String certificate = getFixtureAsString("cert-stock.xml");
 
         Assert.assertEquals("demo12345", login.findSymbolInCertificate(certificate));
     }
 
-    @Test
-    public void findSymbolInInvalidCertificateTest() throws Exception {
+    @Test(expected = AccountPermissionException.class)
+    public void findSymbolInCertificateWithoutSecondInstanceTest() throws Exception {
         Login login = new Login(getClient("Logowanie-certyfikat.html"));
 
-        Assert.assertEquals("", login.findSymbolInCertificate("<xml></xml>")); // change to real cert with empty symbols
+        login.findSymbolInCertificate(getFixtureAsString("cert-no-symbols.xml"));
     }
 }

api/src/test/java/io/github/wulkanowy/api/mobile/RegisterDevice.kt

@@ -0,0 +1,17 @@
+package io.github.wulkanowy.api.mobile
+
+import io.github.wulkanowy.api.StudentAndParentTestCase
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class RegisterDeviceTest : StudentAndParentTestCase() {
+
+    @Test
+    fun getTokenTest() {
+        val registration = RegisterDevice(getSnp("Rejestruj.html"))
+
+        assertEquals("3S1A1B2C", registration.getToken().token)
+        assertEquals("Default", registration.getToken().symbol)
+        assertEquals("1234567", registration.getToken().pin)
+    }
+}

api/src/test/java/io/github/wulkanowy/api/mobile/RegisteredDevicesListTest.kt

@@ -0,0 +1,37 @@
+package io.github.wulkanowy.api.mobile
+
+import io.github.wulkanowy.api.StudentAndParentTestCase
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class RegisteredDevicesListTest : StudentAndParentTestCase() {
+
+    private val filled = RegisteredDevices(getSnp("DostepMobilny-filled.html"))
+
+    @Test
+    fun getListTest() {
+        assertEquals(2, filled.getList().size)
+    }
+
+    @Test
+    fun getNameTest() {
+        assertEquals("google Android SDK built for x86", filled.getList()[0].name)
+        assertEquals("google (Android SDK) built for x86", filled.getList()[1].name)
+    }
+
+    @Test
+    fun getSystemTest() {
+        assertEquals("Android 8.1.0", filled.getList()[0].system)
+        assertEquals("Android 8.1.0", filled.getList()[1].system)
+    }
+
+    @Test
+    fun getDateTest() {
+        assertEquals("2018-01-20 22:35:30", filled.getList()[0].date)
+    }
+
+    @Test
+    fun getIdTest() {
+        assertEquals(321, filled.getList()[0].id)
+    }
+}

api/src/test/java/io/github/wulkanowy/api/notes/NotesListTest.java

@@ -30,8 +30,8 @@ public class NotesListTest extends StudentAndParentTestCase {
     public void getDateTest() throws Exception {
         List<Note> filledList = filled.getAllNotes();
 
-        Assert.assertEquals("06.06.2017", filledList.get(0).getDate());
-        Assert.assertEquals("01.10.2016", filledList.get(2).getDate());
+        Assert.assertEquals("2017-06-06", filledList.get(0).getDate());
+        Assert.assertEquals("2016-10-01", filledList.get(2).getDate());
     }
 
     @Test

api/src/test/java/io/github/wulkanowy/api/timetable/TimetableTest.java

@@ -83,11 +83,11 @@ public class TimetableTest extends StudentAndParentTestCase {
 
     @Test
     public void getLessonNumberTest() throws Exception {
-        Assert.assertEquals("2", std.getWeekTable().getDay(0).getLesson(1).getNumber());
-        Assert.assertEquals("5", std.getWeekTable().getDay(2).getLesson(4).getNumber());
-        Assert.assertEquals("0", full.getWeekTable().getDay(0).getLesson(0).getNumber());
-        Assert.assertEquals("13", full.getWeekTable().getDay(4).getLesson(13).getNumber());
-        Assert.assertEquals("3", holidays.getWeekTable().getDay(3).getLesson(3).getNumber());
+        Assert.assertEquals(2, std.getWeekTable().getDay(0).getLesson(1).getNumber());
+        Assert.assertEquals(5, std.getWeekTable().getDay(2).getLesson(4).getNumber());
+        Assert.assertEquals(0, full.getWeekTable().getDay(0).getLesson(0).getNumber());
+        Assert.assertEquals(13, full.getWeekTable().getDay(4).getLesson(13).getNumber());
+        Assert.assertEquals(3, holidays.getWeekTable().getDay(3).getLesson(3).getNumber());
     }
 
     @Test
@@ -105,11 +105,13 @@ public class TimetableTest extends StudentAndParentTestCase {
         Assert.assertEquals("Zajęcia techniczne", std.getWeekTable().getDay(2).getLesson(4).getSubject());
         Assert.assertEquals("Wychowanie fizyczne", std.getWeekTable().getDay(1).getLesson(1).getSubject());
         Assert.assertEquals("Język angielski", full.getWeekTable().getDay(0).getLesson(1).getSubject());
+        Assert.assertEquals("Wychowanie fizyczne", full.getWeekTable().getDay(0).getLesson(9).getSubject());
         Assert.assertEquals("Wychowanie do życia w rodzinie", full.getWeekTable().getDay(2).getLesson(0).getSubject());
         Assert.assertEquals("Wychowanie fizyczne", full.getWeekTable().getDay(3).getLesson(1).getSubject());
         Assert.assertEquals("Uroczyste zakończenie roku szkolnego", full.getWeekTable().getDay(4).getLesson(0).getSubject());
         Assert.assertEquals("Fizyka", full.getWeekTable().getDay(0).getLesson(0).getSubject());
         Assert.assertEquals("Metodologia programowania", full.getWeekTable().getDay(1).getLesson(0).getSubject());
+        Assert.assertEquals("Język niemiecki", full.getWeekTable().getDay(4).getLesson(2).getSubject());
         Assert.assertEquals("", holidays.getWeekTable().getDay(3).getLesson(3).getSubject());
     }
 
@@ -122,6 +124,7 @@ public class TimetableTest extends StudentAndParentTestCase {
         Assert.assertEquals("Nowak Jadwiga", full.getWeekTable().getDay(2).getLesson(0).getTeacher());
         Assert.assertEquals("Nowicka Irena", full.getWeekTable().getDay(3).getLesson(1).getTeacher());
         Assert.assertEquals("Baran Małgorzata", full.getWeekTable().getDay(4).getLesson(0).getTeacher());
+        Assert.assertEquals("", full.getWeekTable().getDay(4).getLesson(1).getTeacher());
         Assert.assertEquals("", holidays.getWeekTable().getDay(3).getLesson(3).getTeacher());
     }
 
@@ -148,7 +151,13 @@ public class TimetableTest extends StudentAndParentTestCase {
         Assert.assertEquals("zastępstwo (poprzednio: Religia)", full.getWeekTable().getDay(2).getLesson(0).getDescription());
         Assert.assertEquals("zastępstwo (poprzednio: Wychowanie fizyczne)", full.getWeekTable().getDay(3).getLesson(1).getDescription());
         Assert.assertEquals("", full.getWeekTable().getDay(4).getLesson(0).getDescription());
+        Assert.assertEquals("", full.getWeekTable().getDay(4).getLesson(1).getDescription());
+        Assert.assertEquals("bez nawiasów (poprzednio: Religia)", full.getWeekTable().getDay(4).getLesson(3).getDescription());
+        Assert.assertEquals("poprzednio: Wychowanie fizyczne", full.getWeekTable().getDay(4).getLesson(2).getDescription());
         Assert.assertEquals("egzamin", full.getWeekTable().getDay(3).getLesson(0).getDescription());
+        Assert.assertEquals("", full.getWeekTable().getDay(4).getLesson(1).getDescription());
+        Assert.assertEquals("poprzednio: Zajęcia z wychowawcą", full.getWeekTable().getDay(4).getLesson(5).getDescription());
+        Assert.assertEquals("opis w uwadze bez klasy w spanie", full.getWeekTable().getDay(4).getLesson(4).getDescription());
         Assert.assertEquals("", holidays.getWeekTable().getDay(3).getLesson(3).getDescription());
     }
 
@@ -237,6 +246,8 @@ public class TimetableTest extends StudentAndParentTestCase {
         Assert.assertTrue(full.getWeekTable().getDay(1).getLesson(2).isNewMovedInOrChanged());
         Assert.assertTrue(full.getWeekTable().getDay(1).getLesson(3).isNewMovedInOrChanged());
         Assert.assertTrue(full.getWeekTable().getDay(3).getLesson(1).isNewMovedInOrChanged());
+        Assert.assertFalse(full.getWeekTable().getDay(4).getLesson(1).isNewMovedInOrChanged());
+        Assert.assertTrue(full.getWeekTable().getDay(4).getLesson(2).isNewMovedInOrChanged());
         Assert.assertFalse(holidays.getWeekTable().getDay(3).getLesson(3).isNewMovedInOrChanged());
     }
 }

api/src/test/resources/io/github/wulkanowy/api/OcenyWszystkie-semester.html

@@ -15,7 +15,8 @@
             <option selected="selected" value="1235">2</option>
           </select>
         </div>
-      </main>
+      </div>
+    </main>
     <footer>wersja: 17.05.0000.24042</footer>
   </body>
 </html>

api/src/test/resources/io/github/wulkanowy/api/WitrynaUczniaIRodzica.html

@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html lang="pl">
+<head>
+    <meta charset="utf-8">
+    <title>Witryna ucznia i rodzica – Strona gł&#243;wna</title>
+</head>
+<body>
+<ul id="idSection">
+    <li>
+        <label for="uczenDropDownList">Uczeń:</label>
+        <select id="uczenDropDownList" name="uczenDropDownList">
+            <option selected="selected"
+                    value="https://uonetplus-opiekun.fakelog.cf/Default/123456/Uczen/UczenOnChange?&amp;id=100">
+                Jan Kowal
+            </option>
+        </select>
+    </li>
+    <li>
+        <label for="dziennikDropDownList">Dziennik:</label>
+        <select id="dziennikDropDownList" name="dziennikDropDownList">
+            <option selected="selected"
+                    value="https://uonetplus-opiekun.fakelog.cf/Default/123456/Dziennik/DziennikOnChange?&amp;id=1300">
+                3Ti 2017
+            </option>
+            <option value="https://uonetplus-opiekun.fakelog.cf/Default/123456/Dziennik/DziennikOnChange?&amp;id=1200">
+                2Ti 2016
+            </option>
+            <option value="https://uonetplus-opiekun.fakelog.cf/Default/123456/Dziennik/DziennikOnChange?&amp;id=1100">
+                1Ti 2015
+            </option>
+        </select>
+    </li>
+</ul>
+
+<footer>wersja: 17.09.0008.26553</footer>
+</body>
+</html>

api/src/test/resources/io/github/wulkanowy/api/exams/Sprawdziany-empty.html

@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>Witryna ucznia i rodzica – Terminarz sprawdzian&#243;w</title>
+  </head>
+  <body>
+    <main class="mainContainer">
+      <h1>Sprawdziany</h1>
+      <h2>Tydzień 30.04.2018 - 06.05.2018</h2>
+      <h2>Nie zaplanowano żadnych sprawdzian&#243;w na wybrany tydzień</h2>
+      <div class="navigation">
+        <a href="/symbol/123456/Sprawdziany.mvc/Terminarz?data=636600384000000000&amp;rokSzkolny=2017&amp;rodzajWidoku=2" class="button-prev">Poprzedni tydzień</a>
+        <a href="/symbol/123456/Sprawdziany.mvc/Terminarz?data=636612480000000000&amp;rokSzkolny=2017&amp;rodzajWidoku=2" class="button-next">Następny tydzień</a>
+      </div>
+    </main>
+  <footer>wersja: 17.09.0009.26859</footer>
+  </body>
+</html>

api/src/test/resources/io/github/wulkanowy/api/grades/OcenyWszystkie-filled.html

@@ -100,6 +100,14 @@
             <td>06.02.2017</td>
             <td>Amelia Stępień</td>
           </tr>
+          <tr>
+            <td>Język polski</td>
+            <td class="break-word"><span class="ocenaCzastkowa" style="color:#6ECD07;">5</span></td>
+            <td class="break-word">+Odp, Kordian</td>
+            <td>5,00</td>
+            <td>11.05.2017</td>
+            <td>Amelia Stępień</td>
+          </tr>
         </tbody>
       </table>
     </main>

api/src/test/resources/io/github/wulkanowy/api/login/Logowanie-certyfikat.html

@@ -3,10 +3,10 @@
   <title>Working...</title>
  </head>
  <body>
-  <form method="POST" name="hiddenform" action="https://fake-log.com/Default/LoginEndpoint.aspx">
+  <form method="POST" name="hiddenform" action="https://fakelog.cf/Default/LoginEndpoint.aspx">
    <input type="hidden" name="wa" value="wsignin1.0">
-   <input type="hidden" name="wresult" value="<trust:RequestSecurityTokenResponseCollection xmlns:trust=&quot;http://docs.oasis-open.org/ws-sx/ws-trust/200512&quot;><trust:RequestSecurityTokenResponse Context=&quot;https://uonetplus.fake-log.com/Default/LoginEndpoint.aspx&quot;><trust:RequestedSecurityToken><saml:Assertion AssertionID=&quot;_12345678-1234-1234-1234-1234567890ab&quot; IssueInstant=&quot;2017-10-18T22:00:29.006Z&quot; Issuer=&quot;CUFSTokenService&quot; MajorVersion=&quot;1&quot; MinorVersion=&quot;1&quot; xmlns:saml=&quot;urn:oasis:names:tc:SAML:1.0:assertion&quot;><saml:AttributeStatement><saml:Attribute AttributeName=&quot;UserInstance&quot; AttributeNamespace=&quot;http://schemas.fake-log.com/ws/identity/claims&quot;><saml:AttributeValue>Default</saml:AttributeValue><saml:AttributeValue>demo12345</saml:AttributeValue><saml:AttributeValue>incorrect value</saml:AttributeValue><saml:AttributeValue>warszawa</saml:AttributeValue><saml:AttributeValue>asdf</saml:AttributeValue><saml:AttributeValue>asdfsdf</saml:AttributeValue></saml:Attribute></saml:AttributeStatement></saml:Assertion></trust:RequestedSecurityToken></trust:RequestSecurityTokenResponse></trust:RequestSecurityTokenResponseCollection>">
-   <input type="hidden" name="wctx" value="https://fake-log.com/Default/LoginEndpoint.aspx">
+   <input type="hidden" name="wresult" value="<trust:RequestSecurityTokenResponseCollection xmlns:trust=&quot;http://docs.oasis-open.org/ws-sx/ws-trust/200512&quot;><trust:RequestSecurityTokenResponse Context=&quot;https://uonetplus.fakelog.cf/Default/LoginEndpoint.aspx&quot;><trust:RequestedSecurityToken><saml:Assertion AssertionID=&quot;_12345678-1234-1234-1234-1234567890ab&quot; IssueInstant=&quot;2017-10-18T22:00:29.006Z&quot; Issuer=&quot;CUFSTokenService&quot; MajorVersion=&quot;1&quot; MinorVersion=&quot;1&quot; xmlns:saml=&quot;urn:oasis:names:tc:SAML:1.0:assertion&quot;><saml:AttributeStatement><saml:Attribute AttributeName=&quot;UserInstance&quot; AttributeNamespace=&quot;http://schemas.fakelog.cf/ws/identity/claims&quot;><saml:AttributeValue>Default</saml:AttributeValue><saml:AttributeValue>demo12345</saml:AttributeValue><saml:AttributeValue>incorrect value</saml:AttributeValue><saml:AttributeValue>warszawa</saml:AttributeValue><saml:AttributeValue>asdf</saml:AttributeValue><saml:AttributeValue>asdfsdf</saml:AttributeValue></saml:Attribute></saml:AttributeStatement></saml:Assertion></trust:RequestedSecurityToken></trust:RequestSecurityTokenResponse></trust:RequestSecurityTokenResponseCollection>">
+   <input type="hidden" name="wctx" value="https://fakelog.cf/Default/LoginEndpoint.aspx">
    <noscript>
     <p>Script is disabled. Click Submit to continue.</p>
     <input type="submit" value="Submit">

api/src/test/resources/io/github/wulkanowy/api/login/Logowanie-error.html

@@ -6,6 +6,9 @@
     <body>
         <div id="MainDiv">
             <form>
+                <div class="LogOnBoard">
+                    <h1 id="h1Default">Logowanie</h1>
+                </div>
                 <div class="ErrorMessage center">
                     Zła nazwa użytkownika lub hasło
                 </div>

api/src/test/resources/io/github/wulkanowy/api/login/cert-no-symbols.xml

@@ -0,0 +1,13 @@
+<trust:RequestSecurityTokenResponseCollection xmlns:trust="http://docs.oasis-open.org/ws-sx/ws-trust/200512">
+    <trust:RequestSecurityTokenResponse Context="https://uonetplus.fakelog.cf/Default/LoginEndpoint.aspx">
+        <trust:RequestedSecurityToken>
+            <saml:Assertion AssertionID="_12345678-1234-1234-1234-1234567890ab" IssueInstant="2017-10-18T22:00:29.006Z" Issuer="CUFSTokenService" MajorVersion="1" MinorVersion="1" xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion">
+                <saml:AttributeStatement>
+                    <saml:Attribute AttributeName="UserInstance" AttributeNamespace="http://schemas.fakelog.cf/ws/identity/claims">
+                        <saml:AttributeValue>Default</saml:AttributeValue>
+                    </saml:Attribute>
+                </saml:AttributeStatement>
+            </saml:Assertion>
+        </trust:RequestedSecurityToken>
+    </trust:RequestSecurityTokenResponse>
+</trust:RequestSecurityTokenResponseCollection>

api/src/test/resources/io/github/wulkanowy/api/login/cert-stock.xml

@@ -1,9 +1,9 @@
 <trust:RequestSecurityTokenResponseCollection xmlns:trust="http://docs.oasis-open.org/ws-sx/ws-trust/200512">
-	<trust:RequestSecurityTokenResponse Context="https://uonetplus.fake-log.com/Default/LoginEndpoint.aspx">
+	<trust:RequestSecurityTokenResponse Context="https://uonetplus.fakelog.cf/Default/LoginEndpoint.aspx">
 		<trust:RequestedSecurityToken>
 			<saml:Assertion AssertionID="_12345678-1234-1234-1234-1234567890ab" IssueInstant="2017-10-18T22:00:29.006Z" Issuer="CUFSTokenService" MajorVersion="1" MinorVersion="1" xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion">
 				<saml:AttributeStatement>
-					<saml:Attribute AttributeName="UserInstance" AttributeNamespace="http://schemas.fake-log.com/ws/identity/claims">
+					<saml:Attribute AttributeName="UserInstance" AttributeNamespace="http://schemas.fakelog.cf/ws/identity/claims">
 						<saml:AttributeValue>Default</saml:AttributeValue>
 						<saml:AttributeValue>demo12345</saml:AttributeValue>
 						<saml:AttributeValue>incorrect value</saml:AttributeValue>

api/src/test/resources/io/github/wulkanowy/api/mobile/DostepMobilny-filled.html

@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html lang="pl">
+<head>
+    <meta charset="utf-8">
+    <title>Witryna ucznia i rodzica – dostęp mobilny</title>
+</head>
+<body>
+
+<main class="mainContainer">
+    <h1>Dostęp mobilny</h1>
+
+    <article>
+        <h2>Zarejestrowane urządzenia</h2>
+    </article>
+    <table>
+        <thead>
+            <tr>
+                <th>Urządzenie</th>
+                <th>Data rejestracji</th>
+                <th></th>
+            </tr>
+        </thead>
+        <tbody>
+            <tr class="text-center">
+                <td>google Android SDK built for x86 (Android 8.1.0)</td>
+                <td>20.01.2018 godz: 22:35:30</td>
+                <td class="cellWithButton">
+                    <a href="/Default/123456/DostepMobilny.mvc/Wyrejestruj/321" class="button">Wyrejestruj</a>
+                </td>
+            </tr>
+            <tr class="text-center">
+                <td>google (Android SDK) built for x86 (Android 8.1.0)</td>
+                <td>20.01.2018 godz: 22:35:30</td>
+                <td class="cellWithButton">
+                    <a href="/Default/123456/DostepMobilny.mvc/Wyrejestruj/213" class="button">Wyrejestruj</a>
+                </td>
+            </tr>
+        </tbody>
+    </table>
+</main>
+
+<footer>wersja: 18.01.0001.27311</footer>
+</body>
+</html>

api/src/test/resources/io/github/wulkanowy/api/mobile/Rejestruj.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="pl">
+<head>
+    <meta charset="utf-8">
+    <title>Witryna ucznia i rodzica – Rejestracja urządzenia mobilnego</title>
+    <style>
+        .blockElement {
+            display: block;
+        }
+    </style>
+</head>
+<body>
+<main class="mainContainer">
+    <h1>Rejestracja urządzenia mobilnego</h1>
+    <article class="text-center" id="rejestracja-formularz">
+        <span class="blockElement">Za pomocą aplikacji &quot;Dzienniczek+&quot; zeskanuj kod QR.</span>
+        <img src=" data:image/png;base64,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"
+             alt="Kod QR" title="Kod QR" height="400" width="400"/>
+        <span class="blockElement">Token: 3S1A1B2C</span>
+        <span class="blockElement">Symbol: Default</span>
+        <span class="blockElement">PIN: 1234567</span>
+    </article>
+</main>
+<footer>wersja: 18.01.0001.27311</footer>
+</body>
+</html>

api/src/test/resources/io/github/wulkanowy/api/timetable/PlanLekcji-full.html

@@ -3,6 +3,40 @@
   <head>
     <meta charset="utf-8">
     <title>Witryna ucznia i rodzica – Plan lekcji</title>
+    <style>
+      table, th, td {
+        border: 1px solid;
+        border-collapse: collapse;
+      }
+      table td > div:not(:last-child) {
+        border-bottom: 5px solid silver;
+        padding-bottom: 5px;
+        margin-bottom: 5px;
+      }
+      table td div span:nth-child(1) {
+        display: block;
+      }
+      table span {
+        font-size: smaller;
+      }
+      .x-treelabel-ppl {
+        background: #99f;
+        font-style: italic;
+      }
+      .x-treelabel-rlz {
+        background: #f3a;
+      }
+      .x-treelabel-inv {
+        background: #f00;
+      }
+      .x-treelabel-zas {
+        background: #0f0;
+      }
+      table span:not([class]),
+      table span[class=""] {
+        background: #999;
+      }
+    </style>
   </head>
   <body>
     <main class="mainContainer">
@@ -82,13 +116,6 @@
                 </div>
               </td>
               <td>
-                <div>
-                  <span class="x-treelabel-ppl x-treelabel-inv">Metodologia programowania [zaw2]</span>
-                  <span class="x-treelabel-ppl x-treelabel-inv"></span>
-                  <span class="x-treelabel-ppl x-treelabel-inv">Baran Małgorzata</span>
-                  <span class="x-treelabel-ppl x-treelabel-inv">36</span>
-                  <span class="x-treelabel-rlz">(zmiana organizacji zajęć)</span>
-                </div>
                 <div>
                   <span class="x-treelabel-ppl x-treelabel-zas">Wychowanie fizyczne [zaw2]</span>
                   <span class="x-treelabel-ppl x-treelabel-zas"></span>
@@ -96,6 +123,13 @@
                   <span class="x-treelabel-ppl x-treelabel-zas">G3</span>
                   <span class="x-treelabel-rlz">(przeniesiona z lekcji 7, 01.12.2017)</span>
                 </div>
+                <div>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Metodologia programowania [zaw2]</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv"></span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Baran Małgorzata</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">36</span>
+                  <span class="x-treelabel-rlz">(zmiana organizacji zajęć)</span>
+                </div>
               </td>
               <td>
                 <div>
@@ -118,7 +152,18 @@
                   <span class="x-treelabel-rlz">(zastępstwo)</span>
                 </div>
               </td>
-              <td></td>
+              <td>
+                <div>
+                  <span class="">Uroczyste rozpoczecie roku szkolnego 2017/2018</span>
+                  <span class=""></span>
+                  <span class=""></span>
+                </div>
+                <div>
+                  <span class="x-treelabel-ppl">Uroczyste rozpoczecie roku szkolnego 2017/2018</span>
+                  <span class="x-treelabel-ppl"></span>
+                  <span class="x-treelabel-ppl"></span>
+                </div>
+              </td>
             </tr>
             <tr>
               <td>2</td>
@@ -165,7 +210,20 @@
                   <span></span>
                 </div>
               </td>
-              <td></td>
+              <td>
+                <div>
+                  <span class="">Język niemiecki [wf_grupa_2]</span>
+                  <span class=""></span>
+                  <span class=""></span>
+                  <span class=""></span>
+                </div>
+                <div>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Wychowanie fizyczne [wf_grupa_2]</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv"></span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Nauczycielel</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">106</span>
+                </div>
+              </td>
             </tr>
             <tr>
               <td>3</td>
@@ -214,7 +272,17 @@
                   <span></span>
                 </div>
               </td>
-              <td></td>
+              <td>
+                <div>
+                  <span class="x-treelabel-inv">Religia</span>
+                  <span class="x-treelabel-inv">Cyranka Krystian</span>
+                  <span class="x-treelabel-inv">3</span>
+                  <span class="x-treelabel-ppl x-treelabel-zas">Wychowanie do życia w rodzinie</span>
+                  <span class="x-treelabel-ppl x-treelabel-zas">Nowak Jadwiga</span>
+                  <span class="x-treelabel-ppl x-treelabel-zas">3</span>
+                  <span class="x-treelabel-rlz">bez nawiasów</span>
+                </div>
+              </td>
             </tr>
             <tr>
               <td>4</td>
@@ -251,7 +319,16 @@
                   <span></span>
                 </div>
               </td>
-              <td></td>
+              <td>
+                <div>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Język polski</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv"> </span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">16</span>
+                  <span class="random-class">(oddział nieobecny)</span>
+                </div>
+                <button type="button" class="uwaga-btn">Uwaga</button>
+                <div class="uwaga-panel">opis w uwadze bez klasy w spanie</div>
+              </td>
             </tr>
             <tr>
               <td>5</td>
@@ -287,7 +364,20 @@
                   <span></span>
                 </div>
               </td>
-              <td></td>
+              <td>
+                <div>
+                  <span class="">Tworzenie i administrowanie bazami danych [zaw2]</span>
+                  <span class=""></span>
+                  <span class=""></span>
+                  <span class=""></span>
+                </div>
+                <div>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Zajęcia z wychowawcą</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">Małgorzata Kowal</span>
+                  <span class="x-treelabel-ppl x-treelabel-inv">43</span>
+                  <span class="x-treelabel-rlz">(zmiana organizacji zajęć)</span>
+                </div>
+              </td>
             </tr>
             <tr>
               <td>6</td>
@@ -393,7 +483,18 @@
             <tr>
               <td>9</td>
               <td>14:50 15:35</td>
-              <td></td>
+              <td>
+                <div>
+                  <span class="x-treelabel-ppl x-treelabel-zas">Wychowanie fizyczne [zaw2]</span>
+                  <span class="x-treelabel-ppl x-treelabel-zas"></span>
+                  <span class="x-treelabel-ppl x-treelabel-zas"></span>
+                  <span class="x-treelabel-ppl x-treelabel-zas">G3</span>
+                  <span class="x-treelabel-rlz">(przeniesiona z lekcji 7, 01.12.2017)</span>
+                </div>
+                <div>
+                  <!--<span>WTF</span>-->
+                </div>
+              </td>
               <td>
                 <div>
                   <span class="x-treelabel-ppl x-treelabel-inv">Język niemiecki [J1]</span>

app/build.gradle

@@ -2,11 +2,14 @@ buildscript {
     repositories {
         maven { url "https://plugins.gradle.org/m2/" }
         maven { url 'https://maven.fabric.io/public' }
+        google()
     }
 
     dependencies {
-        classpath 'org.greenrobot:greendao-gradle-plugin:3.2.2'
-        classpath 'io.fabric.tools:gradle:1.25.1'
+        classpath "org.greenrobot:greendao-gradle-plugin:$greenDaoGradle"
+        classpath "io.fabric.tools:gradle:$fabricGradle"
+        classpath "com.google.gms:oss-licenses:0.9.2"
+        classpath "com.github.triplet.gradle:play-publisher:$playPublisher"
     }
 }
 
@@ -19,28 +22,49 @@ apply plugin: 'org.greenrobot.greendao'
 apply plugin: 'io.fabric'
 apply from: '../jacoco.gradle'
 apply from: '../android-sonarqube.gradle'
+apply plugin: 'com.google.gms.oss.licenses.plugin'
+apply plugin: 'com.github.triplet.play'
 
 android {
     compileSdkVersion 26
-    buildToolsVersion "26.0.3"
+    buildToolsVersion '27.0.3'
+
+    playAccountConfigs {
+        defaultAccountConfig {
+            serviceAccountEmail = System.getenv("PLAY_SERVICE_ACCOUNT_EMAIL")
+            pk12File = file('key.p12')
+        }
+    }
+
     defaultConfig {
         applicationId "io.github.wulkanowy"
         testApplicationId "io.github.tests.wulkanowy"
         minSdkVersion 15
         targetSdkVersion 26
-        versionCode 5
-        versionName "0.2.2"
+        versionCode 14
+        versionName "0.5.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
+        playAccountConfig = playAccountConfigs.defaultAccountConfig
         manifestPlaceholders = [
                 fabricApiKey: System.getenv("FABRIC_API_KEY") ?: "null"
         ]
     }
 
+    signingConfigs {
+        release {
+            storeFile file("upload-key.jks")
+            storePassword System.getenv("PLAY_STORE_PASSWORD")
+            keyAlias System.getenv("PLAY_KEY_ALIAS")
+            keyPassword System.getenv("PLAY_KEY_PASSWORD")
+        }
+    }
+
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.release
         }
         debug {
             applicationIdSuffix ".dev"
@@ -61,28 +85,41 @@ android {
     }
 }
 
+play {
+    track = 'alpha'
+    uploadImages = true
+}
+
 greendao {
-    schemaVersion 22
+    schemaVersion 28
     generateTests = true
 }
 
+configurations.all {
+    resolutionStrategy.force "com.android.support:support-annotations:$supportVersion"
+}
+
 dependencies {
     implementation project(':api')
     implementation "com.android.support:support-v4:$supportVersion"
     implementation "com.android.support:design:$supportVersion"
     implementation "com.android.support:cardview-v7:$supportVersion"
     implementation "com.android.support:customtabs:$supportVersion"
+    implementation "com.android.support:preference-v14:$supportVersion"
     implementation "com.firebase:firebase-jobdispatcher:$firebaseJob"
     implementation "org.apache.commons:commons-lang3:$apacheLang"
     implementation "org.apache.commons:commons-collections4:$apacheCollections"
     implementation "eu.davidea:flexible-adapter:$flexibleAdapter"
     implementation "eu.davidea:flexible-adapter-ui:$flexibleUi"
     implementation "org.greenrobot:greendao:$greenDao"
-    implementation "com.github.yuweiguocn:GreenDaoUpgradeHelper:$greenDaoHelper"
     implementation "com.jakewharton:butterknife:$butterknife"
-    implementation "joda-time:joda-time:$jodaTime"
     implementation "com.google.dagger:dagger-android-support:$dagger2"
     implementation "com.aurelhubert:ahbottomnavigation:$ahbottom"
+    implementation "com.jakewharton.threetenabp:threetenabp:$threeTenABP"
+    implementation "com.google.android.gms:play-services-oss-licenses:$ossLicenses"
+
+    implementation "com.jakewharton.timber:timber:$timber"
+    implementation "at.favre.lib:slf4j-timber:$slf4jTimber"
 
     implementation("com.crashlytics.sdk.android:crashlytics:$crashlyticsSdk@aar") {
         transitive = true

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/AttendanceLessonTest.java

@@ -2,9 +2,6 @@ package io.github.wulkanowy.data.db.dao.entities;
 
 import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
 
-import io.github.wulkanowy.data.db.dao.entities.AttendanceLesson;
-import io.github.wulkanowy.data.db.dao.entities.AttendanceLessonDao;
-
 public class AttendanceLessonTest extends AbstractDaoTestLongPk<AttendanceLessonDao, AttendanceLesson> {
 
     public AttendanceLessonTest() {
@@ -15,13 +12,13 @@ public class AttendanceLessonTest extends AbstractDaoTestLongPk<AttendanceLesson
     protected AttendanceLesson createEntity(Long key) {
         AttendanceLesson entity = new AttendanceLesson();
         entity.setId(key);
-        entity.setIsPresence(false);
-        entity.setIsAbsenceUnexcused(false);
-        entity.setIsAbsenceExcused(false);
-        entity.setIsUnexcusedLateness(false);
-        entity.setIsAbsenceForSchoolReasons(false);
-        entity.setIsExcusedLateness(false);
-        entity.setIsExemption(false);
+        entity.setPresence(false);
+        entity.setAbsenceUnexcused(false);
+        entity.setAbsenceExcused(false);
+        entity.setUnexcusedLateness(false);
+        entity.setAbsenceForSchoolReasons(false);
+        entity.setExcusedLateness(false);
+        entity.setExemption(false);
         return entity;
     }
 

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/DayTest.java

@@ -12,7 +12,7 @@ public class DayTest extends AbstractDaoTestLongPk<DayDao, Day> {
     protected Day createEntity(Long key) {
         Day entity = new Day();
         entity.setId(key);
-        entity.setIsFreeDay(false);
+        entity.setFreeDay(false);
         return entity;
     }
 

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/DiaryTest.java

@@ -0,0 +1,19 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
+
+public class DiaryTest extends AbstractDaoTestLongPk<DiaryDao, Diary> {
+
+    public DiaryTest() {
+        super(DiaryDao.class);
+    }
+
+    @Override
+    protected Diary createEntity(Long key) {
+        Diary entity = new Diary();
+        entity.setId(key);
+        entity.setCurrent(false);
+        return entity;
+    }
+
+}

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/ExamTest.java

@@ -0,0 +1,18 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
+
+public class ExamTest extends AbstractDaoTestLongPk<ExamDao, Exam> {
+
+    public ExamTest() {
+        super(ExamDao.class);
+    }
+
+    @Override
+    protected Exam createEntity(Long key) {
+        Exam entity = new Exam();
+        entity.setId(key);
+        return entity;
+    }
+
+}

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/SemesterTest.java

@@ -0,0 +1,21 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
+
+import io.github.wulkanowy.data.db.dao.entities.Semester;
+import io.github.wulkanowy.data.db.dao.entities.SemesterDao;
+
+public class SemesterTest extends AbstractDaoTestLongPk<SemesterDao, Semester> {
+
+    public SemesterTest() {
+        super(SemesterDao.class);
+    }
+
+    @Override
+    protected Semester createEntity(Long key) {
+        Semester entity = new Semester();
+        entity.setId(key);
+        return entity;
+    }
+
+}

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/StudentTest.java

@@ -0,0 +1,21 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
+
+import io.github.wulkanowy.data.db.dao.entities.Student;
+import io.github.wulkanowy.data.db.dao.entities.StudentDao;
+
+public class StudentTest extends AbstractDaoTestLongPk<StudentDao, Student> {
+
+    public StudentTest() {
+        super(StudentDao.class);
+    }
+
+    @Override
+    protected Student createEntity(Long key) {
+        Student entity = new Student();
+        entity.setId(key);
+        return entity;
+    }
+
+}

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/SymbolTest.java

@@ -0,0 +1,21 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
+
+import io.github.wulkanowy.data.db.dao.entities.Symbol;
+import io.github.wulkanowy.data.db.dao.entities.SymbolDao;
+
+public class SymbolTest extends AbstractDaoTestLongPk<SymbolDao, Symbol> {
+
+    public SymbolTest() {
+        super(SymbolDao.class);
+    }
+
+    @Override
+    protected Symbol createEntity(Long key) {
+        Symbol entity = new Symbol();
+        entity.setId(key);
+        return entity;
+    }
+
+}

app/src/androidTest/java/io/github/wulkanowy/data/db/dao/entities/TimetableLessonTest.java

@@ -2,9 +2,6 @@ package io.github.wulkanowy.data.db.dao.entities;
 
 import org.greenrobot.greendao.test.AbstractDaoTestLongPk;
 
-import io.github.wulkanowy.data.db.dao.entities.TimetableLesson;
-import io.github.wulkanowy.data.db.dao.entities.TimetableLessonDao;
-
 public class TimetableLessonTest extends AbstractDaoTestLongPk<TimetableLessonDao, TimetableLesson> {
 
     public TimetableLessonTest() {
@@ -15,12 +12,12 @@ public class TimetableLessonTest extends AbstractDaoTestLongPk<TimetableLessonDa
     protected TimetableLesson createEntity(Long key) {
         TimetableLesson entity = new TimetableLesson();
         entity.setId(key);
-        entity.setIsEmpty(false);
-        entity.setIsDivisionIntoGroups(false);
-        entity.setIsPlanning(false);
-        entity.setIsRealized(false);
-        entity.setIsMovedOrCanceled(false);
-        entity.setIsNewMovedInOrChanged(false);
+        entity.setEmpty(false);
+        entity.setDivisionIntoGroups(false);
+        entity.setPlanning(false);
+        entity.setRealized(false);
+        entity.setMovedOrCanceled(false);
+        entity.setNewMovedInOrChanged(false);
         return entity;
     }
 

app/src/main/AndroidManifest.xml

@@ -10,12 +10,10 @@
 
     <application
         android:name=".WulkanowyApp"
-        android:allowBackup="true"
-        android:fullBackupContent="@xml/backup_rules"
+        android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true"
         android:theme="@style/WulkanowyTheme">
         <activity
             android:name=".ui.splash.SplashActivity"
@@ -32,19 +30,40 @@
             android:name=".ui.login.LoginActivity"
             android:configChanges="orientation|screenSize"
             android:label="@string/title_activity_login"
+            android:theme="@style/WulkanowyTheme.DarkActionBar"
             android:windowSoftInputMode="adjustResize" />
         <activity
             android:name=".ui.main.MainActivity"
             android:configChanges="orientation|screenSize"
-            android:label="@string/activity_dashboard_text" />
+            android:label="@string/activity_dashboard_text"
+            android:launchMode="singleTop"
+            />
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesMenuActivity"
+            android:theme="@style/WulkanowyTheme.DarkActionBar" />
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesActivity"
+            android:theme="@style/WulkanowyTheme.DarkActionBar" />
 
         <service
-            android:name=".services.SyncJob"
+            android:name=".services.jobs.SyncJob"
             android:exported="false">
             <intent-filter>
                 <action android:name="com.firebase.jobdispatcher.ACTION_EXECUTE" />
             </intent-filter>
         </service>
+        <service
+            android:name=".services.widgets.TimetableWidgetServices"
+            android:permission="android.permission.BIND_REMOTEVIEWS" />
+
+        <receiver android:name=".ui.widgets.TimetableWidgetProvider">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_provider" />
+        </receiver>
 
         <meta-data
             android:name="io.fabric.ApiKey"

app/src/main/java/io/github/wulkanowy/WulkanowyApp.java

@@ -1,26 +1,25 @@
 package io.github.wulkanowy;
 
-import android.app.Application;
-
 import com.crashlytics.android.Crashlytics;
+import com.crashlytics.android.answers.Answers;
 import com.crashlytics.android.core.CrashlyticsCore;
+import com.jakewharton.threetenabp.AndroidThreeTen;
 
 import org.greenrobot.greendao.query.QueryBuilder;
 
 import javax.inject.Inject;
 
+import dagger.android.AndroidInjector;
+import dagger.android.support.DaggerApplication;
 import eu.davidea.flexibleadapter.FlexibleAdapter;
-import eu.davidea.flexibleadapter.utils.Log;
 import io.fabric.sdk.android.Fabric;
 import io.github.wulkanowy.data.RepositoryContract;
-import io.github.wulkanowy.di.component.ApplicationComponent;
-import io.github.wulkanowy.di.component.DaggerApplicationComponent;
-import io.github.wulkanowy.di.modules.ApplicationModule;
-import io.github.wulkanowy.utils.LogUtils;
+import io.github.wulkanowy.di.DaggerAppComponent;
+import io.github.wulkanowy.utils.FabricUtils;
+import io.github.wulkanowy.utils.LoggerUtils;
+import timber.log.Timber;
 
-public class WulkanowyApp extends Application {
-
-    protected ApplicationComponent applicationComponent;
+public class WulkanowyApp extends DaggerApplication {
 
     @Inject
     RepositoryContract repository;
@@ -28,11 +27,7 @@ public class WulkanowyApp extends Application {
     @Override
     public void onCreate() {
         super.onCreate();
-        applicationComponent = DaggerApplicationComponent
-                .builder()
-                .applicationModule(new ApplicationModule(this))
-                .build();
-        applicationComponent.inject(this);
+        AndroidThreeTen.init(this);
 
         if (BuildConfig.DEBUG) {
             enableDebugLog();
@@ -42,30 +37,38 @@ public class WulkanowyApp extends Application {
     }
 
     private void initializeUserSession() {
-        if (repository.getCurrentUserId() != 0) {
+        if (repository.getSharedRepo().isUserLoggedIn()) {
             try {
-                repository.initLastUser();
+                repository.getSyncRepo().initLastUser();
+                FabricUtils.logLogin("Open app", true);
             } catch (Exception e) {
-                LogUtils.error("An error occurred when the application was started", e);
+                FabricUtils.logLogin("Open app", false);
+                Timber.e(e, "An error occurred when the application was started");
             }
         }
     }
 
     private void enableDebugLog() {
         QueryBuilder.LOG_VALUES = true;
-        FlexibleAdapter.enableLogs(Log.Level.DEBUG);
+        FlexibleAdapter.enableLogs(eu.davidea.flexibleadapter.utils.Log.Level.DEBUG);
+        Timber.plant(new LoggerUtils.DebugLogTree());
     }
 
     private void initializeFabric() {
         Fabric.with(new Fabric.Builder(this)
-                .kits(new Crashlytics.Builder()
-                        .core(new CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build())
-                        .build())
+                .kits(
+                        new Crashlytics.Builder()
+                                .core(new CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build())
+                                .build(),
+                        new Answers()
+                )
                 .debuggable(BuildConfig.DEBUG)
                 .build());
+        Timber.plant(new LoggerUtils.CrashlyticsTree());
     }
 
-    public ApplicationComponent getApplicationComponent() {
-        return applicationComponent;
+    @Override
+    protected AndroidInjector<? extends DaggerApplication> applicationInjector() {
+        return DaggerAppComponent.builder().create(this);
     }
 }

app/src/main/java/io/github/wulkanowy/data/Repository.java

@@ -1,159 +1,56 @@
 package io.github.wulkanowy.data;
 
-import java.io.IOException;
-import java.text.ParseException;
-import java.util.List;
-
 import javax.inject.Inject;
 import javax.inject.Singleton;
 
-import io.github.wulkanowy.api.VulcanException;
-import io.github.wulkanowy.data.db.dao.entities.Account;
-import io.github.wulkanowy.data.db.dao.entities.AttendanceLesson;
-import io.github.wulkanowy.data.db.dao.entities.DaoSession;
-import io.github.wulkanowy.data.db.dao.entities.Grade;
-import io.github.wulkanowy.data.db.dao.entities.GradeDao;
-import io.github.wulkanowy.data.db.dao.entities.Week;
-import io.github.wulkanowy.data.db.dao.entities.WeekDao;
+import io.github.wulkanowy.data.db.dao.DbContract;
 import io.github.wulkanowy.data.db.resources.ResourcesContract;
 import io.github.wulkanowy.data.db.shared.SharedPrefContract;
 import io.github.wulkanowy.data.sync.SyncContract;
-import io.github.wulkanowy.data.sync.account.AccountSyncContract;
-import io.github.wulkanowy.data.sync.attendance.AttendanceSyncContract;
-import io.github.wulkanowy.data.sync.timetable.TimetableSyncContract;
-import io.github.wulkanowy.di.annotations.SyncGrades;
-import io.github.wulkanowy.di.annotations.SyncSubjects;
-import io.github.wulkanowy.utils.security.CryptoException;
 
 @Singleton
 public class Repository implements RepositoryContract {
 
-    private final SharedPrefContract sharedPref;
+    private final DbContract database;
 
     private final ResourcesContract resources;
 
-    private final DaoSession daoSession;
+    private final SharedPrefContract sharedPref;
 
-    private final AccountSyncContract accountSync;
-
-    private final AttendanceSyncContract attendanceSync;
-
-    private final TimetableSyncContract timetableSync;
-
-    private final SyncContract gradeSync;
-
-    private final SyncContract subjectSync;
+    private final SyncContract synchronization;
 
     @Inject
-    Repository(SharedPrefContract sharedPref,
-               ResourcesContract resources,
-               DaoSession daoSession,
-               AccountSyncContract accountSync,
-               AttendanceSyncContract attendanceSync,
-               TimetableSyncContract timetableSync,
-               @SyncGrades SyncContract gradeSync,
-               @SyncSubjects SyncContract subjectSync) {
-        this.sharedPref = sharedPref;
+    Repository(DbContract database, ResourcesContract resources, SharedPrefContract sharedPref,
+               SyncContract synchronization) {
+        this.database = database;
         this.resources = resources;
-        this.daoSession = daoSession;
-        this.accountSync = accountSync;
-        this.attendanceSync = attendanceSync;
-        this.timetableSync = timetableSync;
-        this.gradeSync = gradeSync;
-        this.subjectSync = subjectSync;
+        this.sharedPref = sharedPref;
+        this.synchronization = synchronization;
     }
 
     @Override
-    public long getCurrentUserId() {
-        return sharedPref.getCurrentUserId();
+    public SharedPrefContract getSharedRepo() {
+        return sharedPref;
     }
 
     @Override
-    public String[] getSymbolsKeysArray() {
-        return resources.getSymbolsKeysArray();
+    public ResourcesContract getResRepo() {
+        return resources;
     }
 
     @Override
-    public String[] getSymbolsValuesArray() {
-        return resources.getSymbolsValuesArray();
+    public DbContract getDbRepo() {
+        return database;
     }
 
     @Override
-    public String getErrorLoginMessage(Exception e) {
-        return resources.getErrorLoginMessage(e);
+    public SyncContract getSyncRepo() {
+        return synchronization;
     }
 
     @Override
-    public String getAttendanceLessonDescription(AttendanceLesson lesson) {
-        return resources.getAttendanceLessonDescription(lesson);
-    }
-
-    @Override
-    public void registerUser(String email, String password, String symbol) throws VulcanException,
-            IOException, CryptoException {
-        accountSync.registerUser(email, password, symbol);
-    }
-
-    @Override
-    public void initLastUser() throws VulcanException, IOException, CryptoException {
-        accountSync.initLastUser();
-    }
-
-    @Override
-    public void syncGrades() throws VulcanException, IOException, ParseException {
-        gradeSync.sync();
-    }
-
-    @Override
-    public void syncSubjects() throws VulcanException, IOException, ParseException {
-        subjectSync.sync();
-    }
-
-    @Override
-    public void syncAttendance() throws ParseException, IOException, VulcanException {
-        attendanceSync.syncAttendance();
-    }
-
-    @Override
-    public void syncAttendance(String date) throws ParseException, IOException, VulcanException {
-        attendanceSync.syncAttendance(date);
-    }
-
-    @Override
-    public void syncTimetable() throws VulcanException, IOException, ParseException {
-        timetableSync.syncTimetable();
-    }
-
-    @Override
-    public void syncTimetable(String date) throws VulcanException, IOException, ParseException {
-        timetableSync.syncTimetable(date);
-    }
-
-    @Override
-    public void syncAll() throws VulcanException, IOException, ParseException {
-        syncSubjects();
-        syncGrades();
-        syncAttendance();
-        syncTimetable();
-    }
-
-    @Override
-    public Account getCurrentUser() {
-        return daoSession.getAccountDao().load(sharedPref.getCurrentUserId());
-    }
-
-    @Override
-    public Week getWeek(String date) {
-        return daoSession.getWeekDao().queryBuilder()
-                .where(WeekDao.Properties.StartDayDate.eq(date),
-                        WeekDao.Properties.UserId.eq(getCurrentUserId()))
-                .unique();
-    }
-
-    @Override
-    public List<Grade> getNewGrades() {
-        return daoSession.getGradeDao().queryBuilder()
-                .where(GradeDao.Properties.IsNew.eq(1))
-                .list();
+    public void cleanAllData() {
+        sharedPref.cleanSharedPref();
+        database.recreateDatabase();
     }
 }

app/src/main/java/io/github/wulkanowy/data/RepositoryContract.java

@@ -1,35 +1,22 @@
 package io.github.wulkanowy.data;
 
-import java.io.IOException;
-import java.text.ParseException;
-import java.util.List;
-
 import javax.inject.Singleton;
 
-import io.github.wulkanowy.api.VulcanException;
-import io.github.wulkanowy.data.db.dao.entities.Account;
-import io.github.wulkanowy.data.db.dao.entities.Grade;
-import io.github.wulkanowy.data.db.dao.entities.Week;
+import io.github.wulkanowy.data.db.dao.DbContract;
 import io.github.wulkanowy.data.db.resources.ResourcesContract;
-import io.github.wulkanowy.data.sync.account.AccountSyncContract;
-import io.github.wulkanowy.data.sync.attendance.AttendanceSyncContract;
-import io.github.wulkanowy.data.sync.timetable.TimetableSyncContract;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+import io.github.wulkanowy.data.sync.SyncContract;
 
 @Singleton
-public interface RepositoryContract extends ResourcesContract, AccountSyncContract,
-        AttendanceSyncContract, TimetableSyncContract {
+public interface RepositoryContract {
 
-    long getCurrentUserId();
+    SharedPrefContract getSharedRepo();
 
-    void syncGrades() throws VulcanException, IOException, ParseException;
+    ResourcesContract getResRepo();
 
-    void syncSubjects() throws VulcanException, IOException, ParseException;
+    DbContract getDbRepo();
 
-    void syncAll() throws VulcanException, IOException, ParseException;
+    SyncContract getSyncRepo();
 
-    Account getCurrentUser();
-
-    Week getWeek(String date);
-
-    List<Grade> getNewGrades();
+    void cleanAllData();
 }

app/src/main/java/io/github/wulkanowy/data/db/dao/DbContract.java

@@ -0,0 +1,35 @@
+package io.github.wulkanowy.data.db.dao;
+
+import java.util.List;
+
+import io.github.wulkanowy.data.db.dao.entities.Grade;
+import io.github.wulkanowy.data.db.dao.entities.Subject;
+import io.github.wulkanowy.data.db.dao.entities.Symbol;
+import io.github.wulkanowy.data.db.dao.entities.Week;
+
+public interface DbContract {
+
+    Week getWeek(String date);
+
+    Week getWeek(long diaryId, String date);
+
+    List<Subject> getSubjectList(int semesterName);
+
+    List<Grade> getNewGrades(int semesterName);
+
+    long getCurrentStudentId();
+
+    long getCurrentSymbolId();
+
+    Symbol getCurrentSymbol();
+
+    long getCurrentDiaryId();
+
+    long getSemesterId(int name);
+
+    long getCurrentSemesterId();
+
+    int getCurrentSemesterName();
+
+    void recreateDatabase();
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/DbHelper.java

@@ -3,59 +3,98 @@ package io.github.wulkanowy.data.db.dao;
 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 
-import com.github.yuweiguocn.library.greendao.MigrationHelper;
-
 import org.greenrobot.greendao.database.Database;
 import org.greenrobot.greendao.database.StandardDatabase;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
 import javax.inject.Inject;
+import javax.inject.Named;
 import javax.inject.Singleton;
 
-import io.github.wulkanowy.BuildConfig;
-import io.github.wulkanowy.data.db.dao.entities.AccountDao;
+import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.data.db.dao.entities.DaoMaster;
-import io.github.wulkanowy.data.db.dao.entities.GradeDao;
-import io.github.wulkanowy.data.db.dao.entities.SubjectDao;
+import io.github.wulkanowy.data.db.dao.migrations.Migration23;
+import io.github.wulkanowy.data.db.dao.migrations.Migration26;
+import io.github.wulkanowy.data.db.dao.migrations.Migration27;
+import io.github.wulkanowy.data.db.dao.migrations.Migration28;
 import io.github.wulkanowy.data.db.shared.SharedPrefContract;
-import io.github.wulkanowy.di.annotations.ApplicationContext;
-import io.github.wulkanowy.di.annotations.DatabaseInfo;
-import io.github.wulkanowy.utils.LogUtils;
+import timber.log.Timber;
 
 @Singleton
 public class DbHelper extends DaoMaster.OpenHelper {
 
-    private SharedPrefContract sharedPref;
+    private final SharedPrefContract sharedPref;
+
+    private final Vulcan vulcan;
 
     @Inject
-    DbHelper(@ApplicationContext Context context, @DatabaseInfo String dbName,
-             SharedPrefContract sharedPref) {
+    DbHelper(Context context, @Named("dbName") String dbName,
+             SharedPrefContract sharedPref, Vulcan vulcan) {
         super(context, dbName);
         this.sharedPref = sharedPref;
-    }
-
-    @Override
-    @SuppressWarnings("unchecked")
-    public void onUpgrade(Database db, int oldVersion, int newVersion) {
-        MigrationHelper.DEBUG = BuildConfig.DEBUG;
-        MigrationHelper.migrate(db, new MigrationHelper.ReCreateAllTableListener() {
-            @Override
-            public void onCreateAllTables(Database db, boolean ifNotExists) {
-                DaoMaster.createAllTables(db, ifNotExists);
-            }
-            @Override
-            public void onDropAllTables(Database db, boolean ifExists) {
-                DaoMaster.dropAllTables(db, ifExists);
-            }
-        }, AccountDao.class, SubjectDao.class, GradeDao.class);
+        this.vulcan = vulcan;
     }
 
     @Override
     public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        Timber.i("Cleaning user data oldVersion=%s newVersion=%s", oldVersion, newVersion);
         Database database = new StandardDatabase(db);
-        DaoMaster.dropAllTables(database, true);
-        onCreate(database);
-        sharedPref.setCurrentUserId(0);
+        recreateDatabase(database);
+    }
 
-        LogUtils.info("Cleaning user data oldVersion=" + oldVersion + " newVersion=" + newVersion);
+    @Override
+    public void onUpgrade(Database db, int oldVersion, int newVersion) {
+        List<Migration> migrations = getMigrations();
+
+        // Only run migrations past the old version
+        for (Migration migration : migrations) {
+            if (oldVersion < migration.getVersion()) {
+                try {
+                    Timber.i("Applying migration to db schema v%s...", migration.getVersion());
+                    migration.runMigration(db, sharedPref, vulcan);
+                    Timber.i("Migration %s complete", migration.getVersion());
+                } catch (Exception e) {
+                    Timber.e(e, "Failed to apply migration");
+                    recreateDatabase(db);
+                    break;
+                }
+            }
+        }
+    }
+
+    private void recreateDatabase(Database db) {
+        Timber.i("Database is recreating...");
+        sharedPref.setCurrentUserId(0);
+        DaoMaster.dropAllTables(db, true);
+        onCreate(db);
+    }
+
+    private List<Migration> getMigrations() {
+        List<Migration> migrations = new ArrayList<>();
+        migrations.add(new Migration23());
+        migrations.add(new Migration26());
+        migrations.add(new Migration27());
+        migrations.add(new Migration28());
+
+        // Sorting just to be safe, in case other people add migrations in the wrong order.
+        Comparator<Migration> migrationComparator = new Comparator<Migration>() {
+            @Override
+            public int compare(Migration m1, Migration m2) {
+                return m1.getVersion().compareTo(m2.getVersion());
+            }
+        };
+        Collections.sort(migrations, migrationComparator);
+
+        return migrations;
+    }
+
+    public interface Migration {
+        Integer getVersion();
+
+        void runMigration(Database db, SharedPrefContract sharedPref, Vulcan vulcan) throws Exception;
     }
 }

app/src/main/java/io/github/wulkanowy/data/db/dao/DbRepository.java

@@ -0,0 +1,123 @@
+package io.github.wulkanowy.data.db.dao;
+
+import org.greenrobot.greendao.database.Database;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+import io.github.wulkanowy.data.db.dao.entities.DaoMaster;
+import io.github.wulkanowy.data.db.dao.entities.DaoSession;
+import io.github.wulkanowy.data.db.dao.entities.DiaryDao;
+import io.github.wulkanowy.data.db.dao.entities.Grade;
+import io.github.wulkanowy.data.db.dao.entities.GradeDao;
+import io.github.wulkanowy.data.db.dao.entities.Semester;
+import io.github.wulkanowy.data.db.dao.entities.SemesterDao;
+import io.github.wulkanowy.data.db.dao.entities.StudentDao;
+import io.github.wulkanowy.data.db.dao.entities.Subject;
+import io.github.wulkanowy.data.db.dao.entities.Symbol;
+import io.github.wulkanowy.data.db.dao.entities.SymbolDao;
+import io.github.wulkanowy.data.db.dao.entities.Week;
+import io.github.wulkanowy.data.db.dao.entities.WeekDao;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+
+public class DbRepository implements DbContract {
+
+    private final DaoSession daoSession;
+
+    private final SharedPrefContract sharedPref;
+
+    @Inject
+    DbRepository(DaoSession daoSession, SharedPrefContract sharedPrefContract) {
+        this.daoSession = daoSession;
+        this.sharedPref = sharedPrefContract;
+    }
+
+
+    @Override
+    public Week getWeek(String date) {
+        return getWeek(getCurrentDiaryId(), date);
+    }
+
+    @Override
+    public Week getWeek(long diaryId, String date) {
+        return daoSession.getWeekDao().queryBuilder().where(
+                WeekDao.Properties.StartDayDate.eq(date),
+                WeekDao.Properties.DiaryId.eq(diaryId)
+        ).unique();
+    }
+
+    @Override
+    public List<Subject> getSubjectList(int semesterName) {
+        return daoSession.getSemesterDao().load(getSemesterId(semesterName)).getSubjectList();
+    }
+
+    @Override
+    public List<Grade> getNewGrades(int semesterName) {
+        return daoSession.getGradeDao().queryBuilder().where(
+                GradeDao.Properties.IsNew.eq(1),
+                GradeDao.Properties.SemesterId.eq(getSemesterId(semesterName))
+        ).list();
+    }
+
+    @Override
+    public Symbol getCurrentSymbol() {
+        return daoSession.getSymbolDao().queryBuilder().where(
+                SymbolDao.Properties.UserId.eq(sharedPref.getCurrentUserId())
+        ).unique();
+    }
+
+    @Override
+    public long getCurrentSymbolId() {
+        return getCurrentSymbol().getId();
+    }
+
+    @Override
+    public long getCurrentStudentId() {
+        return daoSession.getStudentDao().queryBuilder().where(
+                StudentDao.Properties.SymbolId.eq(getCurrentSymbolId()),
+                StudentDao.Properties.Current.eq(true)
+        ).unique().getId();
+    }
+
+    @Override
+    public long getCurrentDiaryId() {
+        return daoSession.getDiaryDao().queryBuilder().where(
+                DiaryDao.Properties.StudentId.eq(getCurrentStudentId()),
+                DiaryDao.Properties.Current.eq(true)
+        ).unique().getId();
+    }
+
+    @Override
+    public long getSemesterId(int name) {
+        return daoSession.getSemesterDao().queryBuilder().where(
+                SemesterDao.Properties.DiaryId.eq(getCurrentDiaryId()),
+                SemesterDao.Properties.Name.eq(String.valueOf(name))
+        ).unique().getId();
+    }
+
+    @Override
+    public long getCurrentSemesterId() {
+        return getCurrentSemester().getId();
+    }
+
+    @Override
+    public int getCurrentSemesterName() {
+        return Integer.valueOf(getCurrentSemester().getName());
+    }
+
+    private Semester getCurrentSemester() {
+        return daoSession.getSemesterDao().queryBuilder().where(
+                SemesterDao.Properties.DiaryId.eq(getCurrentDiaryId()),
+                SemesterDao.Properties.Current.eq(true)
+        ).unique();
+    }
+
+    @Override
+    public void recreateDatabase() {
+        Database database = daoSession.getDatabase();
+
+        DaoMaster.dropAllTables(database, true);
+        DaoMaster.createAllTables(database, true);
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Account.java

@@ -6,6 +6,7 @@ import org.greenrobot.greendao.annotation.Generated;
 import org.greenrobot.greendao.annotation.Id;
 import org.greenrobot.greendao.annotation.Property;
 import org.greenrobot.greendao.annotation.ToMany;
+import org.greenrobot.greendao.annotation.Unique;
 
 import java.util.List;
 
@@ -18,29 +19,15 @@ public class Account {
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "NAME")
-    private String name;
-
-    @Property(nameInDb = "E-MAIL")
+    @Unique
+    @Property(nameInDb = "email")
     private String email;
 
-    @Property(nameInDb = "PASSWORD")
+    @Property(nameInDb = "password")
     private String password;
 
-    @Property(nameInDb = "SYMBOL")
-    private String symbol;
-
-    @Property(nameInDb = "SNPID")
-    private String snpId;
-
     @ToMany(referencedJoinProperty = "userId")
-    private List<Subject> subjectList;
-
-    @ToMany(referencedJoinProperty = "userId")
-    private List<Grade> gradeList;
-
-    @ToMany(referencedJoinProperty = "userId")
-    private List<Day> dayList;
+    private List<Symbol> symbolList;
 
     /**
      * Used to resolve relations
@@ -54,15 +41,11 @@ public class Account {
     @Generated(hash = 335469827)
     private transient AccountDao myDao;
 
-    @Generated(hash = 735765217)
-    public Account(Long id, String name, String email, String password, String symbol,
-                   String snpId) {
+    @Generated(hash = 1104194311)
+    public Account(Long id, String email, String password) {
         this.id = id;
-        this.name = name;
         this.email = email;
         this.password = password;
-        this.symbol = symbol;
-        this.snpId = snpId;
     }
 
     @Generated(hash = 882125521)
@@ -70,25 +53,15 @@ public class Account {
     }
 
     public Long getId() {
-        return id;
+        return this.id;
     }
 
-    public Account setId(Long id) {
+    public void setId(Long id) {
         this.id = id;
-        return this;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public Account setName(String name) {
-        this.name = name;
-        return this;
     }
 
     public String getEmail() {
-        return email;
+        return this.email;
     }
 
     public Account setEmail(String email) {
@@ -97,7 +70,7 @@ public class Account {
     }
 
     public String getPassword() {
-        return password;
+        return this.password;
     }
 
     public Account setPassword(String password) {
@@ -105,82 +78,34 @@ public class Account {
         return this;
     }
 
-    public String getSymbol() {
-        return symbol;
-    }
-
-    public Account setSymbol(String symbol) {
-        this.symbol = symbol;
-        return this;
-    }
-
-    public String getSnpId() {
-        return this.snpId;
-    }
-
-    public Account setSnpId(String snpId) {
-        this.snpId = snpId;
-        return this;
-    }
-
     /**
      * To-many relationship, resolved on first access (and after reset).
      * Changes to to-many relations are not persisted, make changes to the target entity.
      */
-    @Generated(hash = 1800750450)
-    public List<Subject> getSubjectList() {
-        if (subjectList == null) {
+    @Generated(hash = 822972496)
+    public List<Symbol> getSymbolList() {
+        if (symbolList == null) {
             final DaoSession daoSession = this.daoSession;
             if (daoSession == null) {
                 throw new DaoException("Entity is detached from DAO context");
             }
-            SubjectDao targetDao = daoSession.getSubjectDao();
-            List<Subject> subjectListNew = targetDao._queryAccount_SubjectList(id);
+            SymbolDao targetDao = daoSession.getSymbolDao();
+            List<Symbol> symbolListNew = targetDao._queryAccount_SymbolList(id);
             synchronized (this) {
-                if (subjectList == null) {
-                    subjectList = subjectListNew;
+                if (symbolList == null) {
+                    symbolList = symbolListNew;
                 }
             }
         }
-        return subjectList;
+        return symbolList;
     }
 
     /**
      * Resets a to-many relationship, making the next get call to query for a fresh result.
      */
-    @Generated(hash = 594294258)
-    public synchronized void resetSubjectList() {
-        subjectList = null;
-    }
-
-    /**
-     * To-many relationship, resolved on first access (and after reset).
-     * Changes to to-many relations are not persisted, make changes to the target entity.
-     */
-    @Generated(hash = 1040074549)
-    public List<Grade> getGradeList() {
-        if (gradeList == null) {
-            final DaoSession daoSession = this.daoSession;
-            if (daoSession == null) {
-                throw new DaoException("Entity is detached from DAO context");
-            }
-            GradeDao targetDao = daoSession.getGradeDao();
-            List<Grade> gradeListNew = targetDao._queryAccount_GradeList(id);
-            synchronized (this) {
-                if (gradeList == null) {
-                    gradeList = gradeListNew;
-                }
-            }
-        }
-        return gradeList;
-    }
-
-    /**
-     * Resets a to-many relationship, making the next get call to query for a fresh result.
-     */
-    @Generated(hash = 1939990047)
-    public synchronized void resetGradeList() {
-        gradeList = null;
+    @Generated(hash = 1716801695)
+    public synchronized void resetSymbolList() {
+        symbolList = null;
     }
 
     /**
@@ -219,36 +144,6 @@ public class Account {
         myDao.update(this);
     }
 
-    /**
-     * To-many relationship, resolved on first access (and after reset).
-     * Changes to to-many relations are not persisted, make changes to the target entity.
-     */
-    @Generated(hash = 300459794)
-    public List<Day> getDayList() {
-        if (dayList == null) {
-            final DaoSession daoSession = this.daoSession;
-            if (daoSession == null) {
-                throw new DaoException("Entity is detached from DAO context");
-            }
-            DayDao targetDao = daoSession.getDayDao();
-            List<Day> dayListNew = targetDao._queryAccount_DayList(id);
-            synchronized (this) {
-                if (dayList == null) {
-                    dayList = dayListNew;
-                }
-            }
-        }
-        return dayList;
-    }
-
-    /**
-     * Resets a to-many relationship, making the next get call to query for a fresh result.
-     */
-    @Generated(hash = 1010399236)
-    public synchronized void resetDayList() {
-        dayList = null;
-    }
-
     /** called by internal mechanisms, do not call yourself. */
     @Generated(hash = 1812283172)
     public void __setDaoSession(DaoSession daoSession) {

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/AttendanceLesson.java

@@ -20,38 +20,38 @@ public class AttendanceLesson implements Serializable {
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "DAY_ID")
+    @Property(nameInDb = "day_id")
     private Long dayId;
 
-    @Property(nameInDb = "DATE")
+    @Property(nameInDb = "date")
     private String date = "";
 
-    @Property(nameInDb = "NUMBER_OF_LESSON")
+    @Property(nameInDb = "number_of_lesson")
     private int number = 0;
 
-    @Property(nameInDb = "SUBJECT_NAME")
+    @Property(nameInDb = "subject")
     private String subject = "";
 
-    @Property(nameInDb = "IS_PRESENCE")
-    private boolean isPresence = false;
+    @Property(nameInDb = "presence")
+    private boolean presence = false;
 
-    @Property(nameInDb = "IS_ABSENCE_UNEXCUSED")
-    private boolean isAbsenceUnexcused = false;
+    @Property(nameInDb = "absence_unexcused")
+    private boolean absenceUnexcused = false;
 
-    @Property(nameInDb = "IS_ABSENCE_EXCUSED")
-    private boolean isAbsenceExcused = false;
+    @Property(nameInDb = "absence_excused")
+    private boolean absenceExcused = false;
 
-    @Property(nameInDb = "IS_UNEXCUSED_LATENESS")
-    private boolean isUnexcusedLateness = false;
+    @Property(nameInDb = "unexcused_lateness")
+    private boolean unexcusedLateness = false;
 
-    @Property(nameInDb = "IS_ABSENCE_FOR_SCHOOL_REASONS")
-    private boolean isAbsenceForSchoolReasons = false;
+    @Property(nameInDb = "absence_for_school_reasons")
+    private boolean absenceForSchoolReasons = false;
 
-    @Property(nameInDb = "IS_EXCUSED_LATENESS")
-    private boolean isExcusedLateness = false;
+    @Property(nameInDb = "excused_lateness")
+    private boolean excusedLateness = false;
 
-    @Property(nameInDb = "IS_EXEMPTION")
-    private boolean isExemption = false;
+    @Property(nameInDb = "exemption")
+    private boolean exemption = false;
 
     @Transient
     private String description = "";
@@ -70,24 +70,24 @@ public class AttendanceLesson implements Serializable {
     @Generated(hash = 1936953859)
     private transient AttendanceLessonDao myDao;
 
-    @Generated(hash = 1428129046)
+    @Generated(hash = 1741231228)
     public AttendanceLesson(Long id, Long dayId, String date, int number,
-                            String subject, boolean isPresence, boolean isAbsenceUnexcused,
-                            boolean isAbsenceExcused, boolean isUnexcusedLateness,
-                            boolean isAbsenceForSchoolReasons, boolean isExcusedLateness,
-                            boolean isExemption) {
+                            String subject, boolean presence, boolean absenceUnexcused,
+                            boolean absenceExcused, boolean unexcusedLateness,
+                            boolean absenceForSchoolReasons, boolean excusedLateness,
+                            boolean exemption) {
         this.id = id;
         this.dayId = dayId;
         this.date = date;
         this.number = number;
         this.subject = subject;
-        this.isPresence = isPresence;
-        this.isAbsenceUnexcused = isAbsenceUnexcused;
-        this.isAbsenceExcused = isAbsenceExcused;
-        this.isUnexcusedLateness = isUnexcusedLateness;
-        this.isAbsenceForSchoolReasons = isAbsenceForSchoolReasons;
-        this.isExcusedLateness = isExcusedLateness;
-        this.isExemption = isExemption;
+        this.presence = presence;
+        this.absenceUnexcused = absenceUnexcused;
+        this.absenceExcused = absenceExcused;
+        this.unexcusedLateness = unexcusedLateness;
+        this.absenceForSchoolReasons = absenceForSchoolReasons;
+        this.excusedLateness = excusedLateness;
+        this.exemption = exemption;
     }
 
     @Generated(hash = 921806575)
@@ -137,66 +137,66 @@ public class AttendanceLesson implements Serializable {
         return this;
     }
 
-    public boolean getIsPresence() {
-        return this.isPresence;
+    public boolean getPresence() {
+        return this.presence;
     }
 
-    public AttendanceLesson setIsPresence(boolean isPresence) {
-        this.isPresence = isPresence;
+    public AttendanceLesson setPresence(boolean presence) {
+        this.presence = presence;
         return this;
     }
 
-    public boolean getIsAbsenceUnexcused() {
-        return this.isAbsenceUnexcused;
+    public boolean getAbsenceUnexcused() {
+        return this.absenceUnexcused;
     }
 
-    public AttendanceLesson setIsAbsenceUnexcused(boolean isAbsenceUnexcused) {
-        this.isAbsenceUnexcused = isAbsenceUnexcused;
+    public AttendanceLesson setAbsenceUnexcused(boolean absenceUnexcused) {
+        this.absenceUnexcused = absenceUnexcused;
         return this;
     }
 
-    public boolean getIsAbsenceExcused() {
-        return this.isAbsenceExcused;
+    public boolean getAbsenceExcused() {
+        return this.absenceExcused;
     }
 
-    public AttendanceLesson setIsAbsenceExcused(boolean isAbsenceExcused) {
-        this.isAbsenceExcused = isAbsenceExcused;
+    public AttendanceLesson setAbsenceExcused(boolean absenceExcused) {
+        this.absenceExcused = absenceExcused;
         return this;
     }
 
-    public boolean getIsUnexcusedLateness() {
-        return this.isUnexcusedLateness;
+    public boolean getUnexcusedLateness() {
+        return this.unexcusedLateness;
     }
 
-    public AttendanceLesson setIsUnexcusedLateness(boolean isUnexcusedLateness) {
-        this.isUnexcusedLateness = isUnexcusedLateness;
+    public AttendanceLesson setUnexcusedLateness(boolean unexcusedLateness) {
+        this.unexcusedLateness = unexcusedLateness;
         return this;
     }
 
-    public boolean getIsAbsenceForSchoolReasons() {
-        return this.isAbsenceForSchoolReasons;
+    public boolean getAbsenceForSchoolReasons() {
+        return this.absenceForSchoolReasons;
     }
 
-    public AttendanceLesson setIsAbsenceForSchoolReasons(boolean isAbsenceForSchoolReasons) {
-        this.isAbsenceForSchoolReasons = isAbsenceForSchoolReasons;
+    public AttendanceLesson setAbsenceForSchoolReasons(boolean absenceForSchoolReasons) {
+        this.absenceForSchoolReasons = absenceForSchoolReasons;
         return this;
     }
 
-    public boolean getIsExcusedLateness() {
-        return this.isExcusedLateness;
+    public boolean getExcusedLateness() {
+        return this.excusedLateness;
     }
 
-    public AttendanceLesson setIsExcusedLateness(boolean isExcusedLateness) {
-        this.isExcusedLateness = isExcusedLateness;
+    public AttendanceLesson setExcusedLateness(boolean excusedLateness) {
+        this.excusedLateness = excusedLateness;
         return this;
     }
 
-    public boolean getIsExemption() {
-        return this.isExemption;
+    public boolean getExemption() {
+        return this.exemption;
     }
 
-    public AttendanceLesson setIsExemption(boolean isExemption) {
-        this.isExemption = isExemption;
+    public AttendanceLesson setExemption(boolean exemption) {
+        this.exemption = exemption;
         return this;
     }
 

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Day.java

@@ -14,59 +14,57 @@ import java.util.List;
 @Entity(
         nameInDb = "Days",
         active = true,
-        indexes = {@Index(value = "userId,weekId,date", unique = true)}
+        indexes = {@Index(value = "weekId,date", unique = true)}
 )
 public class Day {
 
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "USER_ID")
-    private Long userId;
-
-    @Property(nameInDb = "WEEK_ID")
+    @Property(nameInDb = "week_id")
     private Long weekId;
 
-    @Property(nameInDb = "DATE")
+    @Property(nameInDb = "date")
     private String date = "";
 
-    @Property(nameInDb = "DAY_NAME")
+    @Property(nameInDb = "day_name")
     private String dayName = "";
 
-    @Property(nameInDb = "IS_FREE_DAY")
-    private boolean isFreeDay = false;
+    @Property(nameInDb = "free_day")
+    private boolean freeDay = false;
 
-    @Property(nameInDb = "FREE_DAY_NAME")
+    @Property(nameInDb = "free_day_name")
     private String freeDayName = "";
 
+    @OrderBy("number ASC")
     @ToMany(referencedJoinProperty = "dayId")
     private List<TimetableLesson> timetableLessons;
 
-    @ToMany(referencedJoinProperty = "dayId")
     @OrderBy("number ASC")
+    @ToMany(referencedJoinProperty = "dayId")
     private List<AttendanceLesson> attendanceLessons;
 
+    @ToMany(referencedJoinProperty = "dayId")
+    private List<Exam> exams;
+
     /**
      * Used to resolve relations
      */
     @Generated(hash = 2040040024)
     private transient DaoSession daoSession;
 
-    /**
-     * Used for active entity operations.
-     */
+    /** Used for active entity operations. */
     @Generated(hash = 312167767)
     private transient DayDao myDao;
 
-    @Generated(hash = 723729681)
-    public Day(Long id, Long userId, Long weekId, String date, String dayName,
-            boolean isFreeDay, String freeDayName) {
+    @Generated(hash = 523139020)
+    public Day(Long id, Long weekId, String date, String dayName, boolean freeDay,
+               String freeDayName) {
         this.id = id;
-        this.userId = userId;
         this.weekId = weekId;
         this.date = date;
         this.dayName = dayName;
-        this.isFreeDay = isFreeDay;
+        this.freeDay = freeDay;
         this.freeDayName = freeDayName;
     }
 
@@ -82,26 +80,16 @@ public class Day {
         this.id = id;
     }
 
-    public Long getUserId() {
-        return userId;
-    }
-
     public Long getWeekId() {
-        return weekId;
+        return this.weekId;
     }
 
-    public Day setWeekId(Long weekId) {
+    public void setWeekId(Long weekId) {
         this.weekId = weekId;
-        return this;
-    }
-
-    public Day setUserId(Long userId) {
-        this.userId = userId;
-        return this;
     }
 
     public String getDate() {
-        return date;
+        return this.date;
     }
 
     public Day setDate(String date) {
@@ -110,7 +98,7 @@ public class Day {
     }
 
     public String getDayName() {
-        return dayName;
+        return this.dayName;
     }
 
     public Day setDayName(String dayName) {
@@ -118,17 +106,17 @@ public class Day {
         return this;
     }
 
-    public boolean getIsFreeDay() {
-        return this.isFreeDay;
+    public boolean getFreeDay() {
+        return this.freeDay;
     }
 
-    public Day setIsFreeDay(boolean isFreeDay) {
-        this.isFreeDay = isFreeDay;
+    public Day setFreeDay(boolean freeDay) {
+        this.freeDay = freeDay;
         return this;
     }
 
     public String getFreeDayName() {
-        return freeDayName;
+        return this.freeDayName;
     }
 
     public Day setFreeDayName(String freeDayName) {
@@ -159,7 +147,9 @@ public class Day {
         return timetableLessons;
     }
 
-    /** Resets a to-many relationship, making the next get call to query for a fresh result. */
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
     @Generated(hash = 1687683740)
     public synchronized void resetTimetableLessons() {
         timetableLessons = null;
@@ -188,12 +178,44 @@ public class Day {
         return attendanceLessons;
     }
 
-    /** Resets a to-many relationship, making the next get call to query for a fresh result. */
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
     @Generated(hash = 1343075564)
     public synchronized void resetAttendanceLessons() {
         attendanceLessons = null;
     }
 
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 1231531946)
+    public List<Exam> getExams() {
+        if (exams == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            ExamDao targetDao = daoSession.getExamDao();
+            List<Exam> examsNew = targetDao._queryDay_Exams(id);
+            synchronized (this) {
+                if (exams == null) {
+                    exams = examsNew;
+                }
+            }
+        }
+        return exams;
+    }
+
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
+    @Generated(hash = 841969952)
+    public synchronized void resetExams() {
+        exams = null;
+    }
+
     /**
      * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
      * Entity must attached to an entity context.
@@ -236,4 +258,6 @@ public class Day {
         this.daoSession = daoSession;
         myDao = daoSession != null ? daoSession.getDayDao() : null;
     }
+
+
 }

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Diary.java

@@ -0,0 +1,177 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.DaoException;
+import org.greenrobot.greendao.annotation.Entity;
+import org.greenrobot.greendao.annotation.Generated;
+import org.greenrobot.greendao.annotation.Id;
+import org.greenrobot.greendao.annotation.Property;
+import org.greenrobot.greendao.annotation.ToMany;
+
+import java.util.List;
+
+@Entity(
+        nameInDb = "Diaries",
+        active = true
+)
+public class Diary {
+
+    @Id(autoincrement = true)
+    private Long id;
+
+    @Property(nameInDb = "student_id")
+    private Long studentId;
+
+    @Property(nameInDb = "current")
+    private boolean current;
+
+    @Property(nameInDb = "name")
+    private String name;
+
+    @Property(nameInDb = "value")
+    private String value;
+
+    @ToMany(referencedJoinProperty = "diaryId")
+    private List<Semester> semesterList;
+
+    /**
+     * Used to resolve relations
+     */
+    @Generated(hash = 2040040024)
+    private transient DaoSession daoSession;
+
+    /**
+     * Used for active entity operations.
+     */
+    @Generated(hash = 21166549)
+    private transient DiaryDao myDao;
+
+    @Generated(hash = 277096196)
+    public Diary(Long id, Long studentId, boolean current, String name, String value) {
+        this.id = id;
+        this.studentId = studentId;
+        this.current = current;
+        this.name = name;
+        this.value = value;
+    }
+
+    @Generated(hash = 112123061)
+    public Diary() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getStudentId() {
+        return this.studentId;
+    }
+
+    public Diary setStudentId(Long studentId) {
+        this.studentId = studentId;
+        return this;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public Diary setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public String getValue() {
+        return this.value;
+    }
+
+    public Diary setValue(String value) {
+        this.value = value;
+        return this;
+    }
+
+    public boolean getCurrent() {
+        return this.current;
+    }
+
+    public Diary setCurrent(boolean current) {
+        this.current = current;
+        return this;
+    }
+
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 1738383053)
+    public List<Semester> getSemesterList() {
+        if (semesterList == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            SemesterDao targetDao = daoSession.getSemesterDao();
+            List<Semester> semesterListNew = targetDao._queryDiary_SemesterList(id);
+            synchronized (this) {
+                if (semesterList == null) {
+                    semesterList = semesterListNew;
+                }
+            }
+        }
+        return semesterList;
+    }
+
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
+    @Generated(hash = 995060657)
+    public synchronized void resetSemesterList() {
+        semesterList = null;
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 128553479)
+    public void delete() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.delete(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#refresh(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 1942392019)
+    public void refresh() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.refresh(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#update(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 713229351)
+    public void update() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.update(this);
+    }
+
+    /** called by internal mechanisms, do not call yourself. */
+    @Generated(hash = 629297785)
+    public void __setDaoSession(DaoSession daoSession) {
+        this.daoSession = daoSession;
+        myDao = daoSession != null ? daoSession.getDiaryDao() : null;
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Exam.java

@@ -0,0 +1,177 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.DaoException;
+import org.greenrobot.greendao.annotation.Entity;
+import org.greenrobot.greendao.annotation.Generated;
+import org.greenrobot.greendao.annotation.Id;
+import org.greenrobot.greendao.annotation.Index;
+import org.greenrobot.greendao.annotation.Property;
+
+import java.io.Serializable;
+
+@Entity(
+        nameInDb = "Exams",
+        active = true,
+        indexes = {@Index(value = "dayId,entryDate,subjectAndGroup,type,teacher", unique = true)}
+)
+
+public class Exam implements Serializable {
+
+    @Id(autoincrement = true)
+    private Long id;
+
+    @Property(nameInDb = "day_id")
+    private Long dayId;
+
+    @Property(nameInDb = "subject_and_group")
+    private String subjectAndGroup = "";
+
+    @Property(nameInDb = "type")
+    private String type = "";
+
+    @Property(nameInDb = "description")
+    private String description = "";
+
+    @Property(nameInDb = "teacher")
+    private String teacher = "";
+
+    @Property(nameInDb = "entry_date")
+    private String entryDate = "";
+
+    private static final long serialVersionUID = 42L;
+
+    /**
+     * Used to resolve relations
+     */
+    @Generated(hash = 2040040024)
+    private transient DaoSession daoSession;
+
+    /**
+     * Used for active entity operations.
+     */
+    @Generated(hash = 973692038)
+    private transient ExamDao myDao;
+
+    @Generated(hash = 998653360)
+    public Exam(Long id, Long dayId, String subjectAndGroup, String type, String description,
+                String teacher, String entryDate) {
+        this.id = id;
+        this.dayId = dayId;
+        this.subjectAndGroup = subjectAndGroup;
+        this.type = type;
+        this.description = description;
+        this.teacher = teacher;
+        this.entryDate = entryDate;
+    }
+
+    @Generated(hash = 945526930)
+    public Exam() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public Exam setId(Long id) {
+        this.id = id;
+        return this;
+    }
+
+    public Long getDayId() {
+        return this.dayId;
+    }
+
+    public Exam setDayId(Long dayId) {
+        this.dayId = dayId;
+        return this;
+    }
+
+    public String getSubjectAndGroup() {
+        return subjectAndGroup;
+    }
+
+    public Exam setSubjectAndGroup(String subjectAndGroup) {
+        this.subjectAndGroup = subjectAndGroup;
+        return this;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public Exam setType(String type) {
+        this.type = type;
+        return this;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public Exam setDescription(String description) {
+        this.description = description;
+        return this;
+    }
+
+    public String getTeacher() {
+        return teacher;
+    }
+
+    public Exam setTeacher(String teacher) {
+        this.teacher = teacher;
+        return this;
+    }
+
+    public String getEntryDate() {
+        return entryDate;
+    }
+
+    public Exam setEntryDate(String entryDate) {
+        this.entryDate = entryDate;
+        return this;
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 128553479)
+    public void delete() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.delete(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#refresh(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 1942392019)
+    public void refresh() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.refresh(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#update(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 713229351)
+    public void update() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.update(this);
+    }
+
+    /** called by internal mechanisms, do not call yourself. */
+    @Generated(hash = 1730563422)
+    public void __setDaoSession(DaoSession daoSession) {
+        this.daoSession = daoSession;
+        myDao = daoSession != null ? daoSession.getExamDao() : null;
+    }
+
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Grade.java

@@ -10,8 +10,6 @@ import org.greenrobot.greendao.annotation.Property;
 
 import java.io.Serializable;
 
-import io.github.wulkanowy.R;
-
 @Entity(
         nameInDb = "Grades",
         active = true
@@ -21,72 +19,44 @@ public class Grade implements Serializable {
     @Id(autoincrement = true)
     protected Long id;
 
-    @Property(nameInDb = "SUBJECT_ID")
+    @Property(nameInDb = "semester_id")
+    private Long semesterId;
+
+    @Property(nameInDb = "subject_id")
     private Long subjectId;
 
-    @Property(nameInDb = "USER_ID")
-    private Long userId;
-
-    @Property(nameInDb = "SUBJECT")
+    @Property(nameInDb = "subject")
     private String subject = "";
 
-    @Property(nameInDb = "VALUE")
+    @Property(nameInDb = "value")
     protected String value = "";
 
-    @Property(nameInDb = "COLOR")
-    private String color = "";
-
-    @Property(nameInDb = "SYMBOL")
-    private String symbol = "";
-
-    @Property(nameInDb = "DESCRIPTION")
-    private String description = "";
-
-    @Property(nameInDb = "WEIGHT")
+    @Property(nameInDb = "weight")
     private String weight = "";
 
-    @Property(nameInDb = "DATE")
+    @Property(nameInDb = "date")
     private String date = "";
 
-    @Property(nameInDb = "TEACHER")
+    @Property(nameInDb = "symbol")
+    private String symbol = "";
+
+    @Property(nameInDb = "color")
+    private String color = "";
+
+    @Property(nameInDb = "description")
+    private String description = "";
+
+    @Property(nameInDb = "teacher")
     private String teacher = "";
 
-    @Property(nameInDb = "SEMESTER")
-    private String semester = "";
-
-    @Property(nameInDb = "IS_NEW")
+    @Property(nameInDb = "is_new")
     private boolean isNew = false;
 
-    @Property(nameInDb = "READ")
+    @Property(nameInDb = "read")
     private boolean read = true;
 
     private static final long serialVersionUID = 42L;
 
-    @Generated(hash = 568899968)
-    public Grade(Long id, Long subjectId, Long userId, String subject, String value,
-                 String color, String symbol, String description, String weight,
-                 String date, String teacher, String semester, boolean isNew,
-                 boolean read) {
-        this.id = id;
-        this.subjectId = subjectId;
-        this.userId = userId;
-        this.subject = subject;
-        this.value = value;
-        this.color = color;
-        this.symbol = symbol;
-        this.description = description;
-        this.weight = weight;
-        this.date = date;
-        this.teacher = teacher;
-        this.semester = semester;
-        this.isNew = isNew;
-        this.read = read;
-    }
-
-    @Generated(hash = 2042976393)
-    public Grade() {
-    }
-
     /**
      * Used to resolve relations
      */
@@ -99,29 +69,27 @@ public class Grade implements Serializable {
     @Generated(hash = 681281562)
     private transient GradeDao myDao;
 
-    public int getValueColor() {
+    @Generated(hash = 2042976393)
+    public Grade() {
+    }
 
-        String replacedString = value.replaceAll("[^0-9]", "");
-
-        if (!"".equals(replacedString)) {
-            switch (Integer.parseInt(replacedString)) {
-                case 6:
-                    return R.color.six_grade;
-                case 5:
-                    return R.color.five_grade;
-                case 4:
-                    return R.color.four_grade;
-                case 3:
-                    return R.color.three_grade;
-                case 2:
-                    return R.color.two_grade;
-                case 1:
-                    return R.color.one_grade;
-                default:
-                    return R.color.default_grade;
-            }
-        }
-        return R.color.default_grade;
+    @Generated(hash = 619853992)
+    public Grade(Long id, Long semesterId, Long subjectId, String subject, String value,
+                 String weight, String date, String symbol, String color, String description,
+                 String teacher, boolean isNew, boolean read) {
+        this.id = id;
+        this.semesterId = semesterId;
+        this.subjectId = subjectId;
+        this.subject = subject;
+        this.value = value;
+        this.weight = weight;
+        this.date = date;
+        this.symbol = symbol;
+        this.color = color;
+        this.description = description;
+        this.teacher = teacher;
+        this.isNew = isNew;
+        this.read = read;
     }
 
     @Override
@@ -133,6 +101,7 @@ public class Grade implements Serializable {
         Grade grade = (Grade) o;
 
         return new EqualsBuilder()
+                .append(semesterId, grade.semesterId)
                 .append(subject, grade.subject)
                 .append(value, grade.value)
                 .append(color, grade.color)
@@ -141,13 +110,13 @@ public class Grade implements Serializable {
                 .append(weight, grade.weight)
                 .append(date, grade.date)
                 .append(teacher, grade.teacher)
-                .append(semester, grade.semester)
                 .isEquals();
     }
 
     @Override
     public int hashCode() {
         return new HashCodeBuilder(17, 37)
+                .append(semesterId)
                 .append(subject)
                 .append(value)
                 .append(color)
@@ -156,48 +125,19 @@ public class Grade implements Serializable {
                 .append(weight)
                 .append(date)
                 .append(teacher)
-                .append(semester)
                 .toHashCode();
     }
 
     public Long getId() {
-        return id;
+        return this.id;
     }
 
-    public Grade setId(Long id) {
+    public void setId(Long id) {
         this.id = id;
-        return this;
-    }
-
-    public Long getSubjectId() {
-        return subjectId;
-    }
-
-    public Grade setSubjectId(Long subjectId) {
-        this.subjectId = subjectId;
-        return this;
-    }
-
-    public Long getUserId() {
-        return userId;
-    }
-
-    public Grade setUserId(Long userId) {
-        this.userId = userId;
-        return this;
-    }
-
-    public String getSubject() {
-        return subject;
-    }
-
-    public Grade setSubject(String subject) {
-        this.subject = subject;
-        return this;
     }
 
     public String getValue() {
-        return value;
+        return this.value;
     }
 
     public Grade setValue(String value) {
@@ -205,8 +145,26 @@ public class Grade implements Serializable {
         return this;
     }
 
+    public Long getSemesterId() {
+        return this.semesterId;
+    }
+
+    public Grade setSemesterId(Long semesterId) {
+        this.semesterId = semesterId;
+        return this;
+    }
+
+    public String getSubject() {
+        return this.subject;
+    }
+
+    public Grade setSubject(String subject) {
+        this.subject = subject;
+        return this;
+    }
+
     public String getColor() {
-        return color;
+        return this.color;
     }
 
     public Grade setColor(String color) {
@@ -215,7 +173,7 @@ public class Grade implements Serializable {
     }
 
     public String getSymbol() {
-        return symbol;
+        return this.symbol;
     }
 
     public Grade setSymbol(String symbol) {
@@ -224,7 +182,7 @@ public class Grade implements Serializable {
     }
 
     public String getDescription() {
-        return description;
+        return this.description;
     }
 
     public Grade setDescription(String description) {
@@ -233,7 +191,7 @@ public class Grade implements Serializable {
     }
 
     public String getWeight() {
-        return weight;
+        return this.weight;
     }
 
     public Grade setWeight(String weight) {
@@ -242,7 +200,7 @@ public class Grade implements Serializable {
     }
 
     public String getDate() {
-        return date;
+        return this.date;
     }
 
     public Grade setDate(String date) {
@@ -251,7 +209,7 @@ public class Grade implements Serializable {
     }
 
     public String getTeacher() {
-        return teacher;
+        return this.teacher;
     }
 
     public Grade setTeacher(String teacher) {
@@ -259,22 +217,12 @@ public class Grade implements Serializable {
         return this;
     }
 
-    public String getSemester() {
-        return semester;
-    }
-
-    public Grade setSemester(String semester) {
-        this.semester = semester;
-        return this;
-    }
-
     public boolean getIsNew() {
         return this.isNew;
     }
 
-    public Grade setIsNew(boolean isNew) {
+    public void setIsNew(boolean isNew) {
         this.isNew = isNew;
-        return this;
     }
 
     public boolean getRead() {
@@ -286,6 +234,17 @@ public class Grade implements Serializable {
         return this;
     }
 
+
+    public Long getSubjectId() {
+        return this.subjectId;
+    }
+
+
+    public void setSubjectId(Long subjectId) {
+        this.subjectId = subjectId;
+    }
+
+
     /**
      * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
      * Entity must attached to an entity context.
@@ -298,6 +257,7 @@ public class Grade implements Serializable {
         myDao.delete(this);
     }
 
+
     /**
      * Convenient call for {@link org.greenrobot.greendao.AbstractDao#refresh(Object)}.
      * Entity must attached to an entity context.
@@ -310,6 +270,7 @@ public class Grade implements Serializable {
         myDao.refresh(this);
     }
 
+
     /**
      * Convenient call for {@link org.greenrobot.greendao.AbstractDao#update(Object)}.
      * Entity must attached to an entity context.
@@ -322,6 +283,7 @@ public class Grade implements Serializable {
         myDao.update(this);
     }
 
+
     /** called by internal mechanisms, do not call yourself. */
     @Generated(hash = 1187286414)
     public void __setDaoSession(DaoSession daoSession) {

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Semester.java

@@ -0,0 +1,208 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.DaoException;
+import org.greenrobot.greendao.annotation.Entity;
+import org.greenrobot.greendao.annotation.Generated;
+import org.greenrobot.greendao.annotation.Id;
+import org.greenrobot.greendao.annotation.Property;
+import org.greenrobot.greendao.annotation.ToMany;
+
+import java.util.List;
+
+@Entity(
+        nameInDb = "Semesters",
+        active = true
+)
+public class Semester {
+
+    @Id(autoincrement = true)
+    private Long id;
+
+    @Property(nameInDb = "diary_id")
+    private Long diaryId;
+
+    @Property(nameInDb = "current")
+    private boolean current;
+
+    @Property(nameInDb = "name")
+    private String name;
+
+    @Property(nameInDb = "value")
+    private String value;
+
+    @ToMany(referencedJoinProperty = "semesterId")
+    private List<Subject> subjectList;
+
+    @ToMany(referencedJoinProperty = "semesterId")
+    private List<Grade> gradeList;
+
+    /**
+     * Used to resolve relations
+     */
+    @Generated(hash = 2040040024)
+    private transient DaoSession daoSession;
+
+    /**
+     * Used for active entity operations.
+     */
+    @Generated(hash = 282930393)
+    private transient SemesterDao myDao;
+
+    @Generated(hash = 1661077309)
+    public Semester(Long id, Long diaryId, boolean current, String name, String value) {
+        this.id = id;
+        this.diaryId = diaryId;
+        this.current = current;
+        this.name = name;
+        this.value = value;
+    }
+
+    @Generated(hash = 58335877)
+    public Semester() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getDiaryId() {
+        return this.diaryId;
+    }
+
+    public Semester setDiaryId(Long diaryId) {
+        this.diaryId = diaryId;
+        return this;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public Semester setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public String getValue() {
+        return this.value;
+    }
+
+    public Semester setValue(String value) {
+        this.value = value;
+        return this;
+    }
+
+    public boolean getCurrent() {
+        return this.current;
+    }
+
+    public Semester setCurrent(boolean current) {
+        this.current = current;
+        return this;
+    }
+
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 723353662)
+    public List<Subject> getSubjectList() {
+        if (subjectList == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            SubjectDao targetDao = daoSession.getSubjectDao();
+            List<Subject> subjectListNew = targetDao._querySemester_SubjectList(id);
+            synchronized (this) {
+                if (subjectList == null) {
+                    subjectList = subjectListNew;
+                }
+            }
+        }
+        return subjectList;
+    }
+
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
+    @Generated(hash = 594294258)
+    public synchronized void resetSubjectList() {
+        subjectList = null;
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 128553479)
+    public void delete() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.delete(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#refresh(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 1942392019)
+    public void refresh() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.refresh(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#update(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 713229351)
+    public void update() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.update(this);
+    }
+
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 390330007)
+    public List<Grade> getGradeList() {
+        if (gradeList == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            GradeDao targetDao = daoSession.getGradeDao();
+            List<Grade> gradeListNew = targetDao._querySemester_GradeList(id);
+            synchronized (this) {
+                if (gradeList == null) {
+                    gradeList = gradeListNew;
+                }
+            }
+        }
+        return gradeList;
+    }
+
+    /** Resets a to-many relationship, making the next get call to query for a fresh result. */
+    @Generated(hash = 1939990047)
+    public synchronized void resetGradeList() {
+        gradeList = null;
+    }
+
+    /** called by internal mechanisms, do not call yourself. */
+    @Generated(hash = 676204164)
+    public void __setDaoSession(DaoSession daoSession) {
+        this.daoSession = daoSession;
+        myDao = daoSession != null ? daoSession.getSemesterDao() : null;
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Student.java

@@ -0,0 +1,178 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.DaoException;
+import org.greenrobot.greendao.annotation.Entity;
+import org.greenrobot.greendao.annotation.Generated;
+import org.greenrobot.greendao.annotation.Id;
+import org.greenrobot.greendao.annotation.Property;
+import org.greenrobot.greendao.annotation.ToMany;
+
+import java.util.List;
+
+@Entity(
+        nameInDb = "Students",
+        active = true
+)
+public class Student {
+
+    @Id(autoincrement = true)
+    private Long id;
+
+    @Property(nameInDb = "symbol_id")
+    private Long symbolId;
+
+    @Property(nameInDb = "current")
+    private boolean current;
+
+    @Property(nameInDb = "real_id")
+    private String realId;
+
+    @Property(nameInDb = "name")
+    private String name;
+
+    @ToMany(referencedJoinProperty = "studentId")
+    private List<Diary> diaryList;
+
+    /**
+     * Used to resolve relations
+     */
+    @Generated(hash = 2040040024)
+    private transient DaoSession daoSession;
+
+    /**
+     * Used for active entity operations.
+     */
+    @Generated(hash = 1943931642)
+    private transient StudentDao myDao;
+
+    @Generated(hash = 1334215952)
+    public Student(Long id, Long symbolId, boolean current, String realId, String name) {
+        this.id = id;
+        this.symbolId = symbolId;
+        this.current = current;
+        this.realId = realId;
+        this.name = name;
+    }
+
+    @Generated(hash = 1556870573)
+    public Student() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getSymbolId() {
+        return this.symbolId;
+    }
+
+    public Student setSymbolId(Long symbolId) {
+        this.symbolId = symbolId;
+        return this;
+    }
+
+    public String getRealId() {
+        return this.realId;
+    }
+
+    public Student setRealId(String realId) {
+        this.realId = realId;
+        return this;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public Student setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    public boolean getCurrent() {
+        return this.current;
+    }
+
+    public Student setCurrent(boolean current) {
+        this.current = current;
+        return this;
+    }
+
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 508305571)
+    public List<Diary> getDiaryList() {
+        if (diaryList == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            DiaryDao targetDao = daoSession.getDiaryDao();
+            List<Diary> diaryListNew = targetDao._queryStudent_DiaryList(id);
+            synchronized (this) {
+                if (diaryList == null) {
+                    diaryList = diaryListNew;
+                }
+            }
+        }
+        return diaryList;
+    }
+
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
+    @Generated(hash = 1078514341)
+    public synchronized void resetDiaryList() {
+        diaryList = null;
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 128553479)
+    public void delete() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.delete(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#refresh(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 1942392019)
+    public void refresh() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.refresh(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#update(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 713229351)
+    public void update() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.update(this);
+    }
+
+    /** called by internal mechanisms, do not call yourself. */
+    @Generated(hash = 1701634981)
+    public void __setDaoSession(DaoSession daoSession) {
+        this.daoSession = daoSession;
+        myDao = daoSession != null ? daoSession.getStudentDao() : null;
+    }
+
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Subject.java

@@ -18,21 +18,18 @@ public class Subject {
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "USER_ID")
-    private Long userId;
+    @Property(nameInDb = "semester_id")
+    private Long semesterId;
 
-    @Property(nameInDb = "NAME")
+    @Property(nameInDb = "name")
     private String name;
 
-    @Property(nameInDb = "PREDICTED_RATING")
+    @Property(nameInDb = "predicted_rating")
     private String predictedRating;
 
-    @Property(nameInDb = "FINAL_RATING")
+    @Property(nameInDb = "final_rating")
     private String finalRating;
 
-    @Property(nameInDb = "SEMESTER")
-    private String semester;
-
     @ToMany(referencedJoinProperty = "subjectId")
     private List<Grade> gradeList;
 
@@ -48,15 +45,14 @@ public class Subject {
     @Generated(hash = 1644932788)
     private transient SubjectDao myDao;
 
-    @Generated(hash = 396325764)
-    public Subject(Long id, Long userId, String name, String predictedRating,
-                   String finalRating, String semester) {
+    @Generated(hash = 1817932538)
+    public Subject(Long id, Long semesterId, String name, String predictedRating,
+                   String finalRating) {
         this.id = id;
-        this.userId = userId;
+        this.semesterId = semesterId;
         this.name = name;
         this.predictedRating = predictedRating;
         this.finalRating = finalRating;
-        this.semester = semester;
     }
 
     @Generated(hash = 1617906264)
@@ -64,25 +60,24 @@ public class Subject {
     }
 
     public Long getId() {
-        return id;
+        return this.id;
     }
 
-    public Subject setId(Long id) {
+    public void setId(Long id) {
         this.id = id;
-        return this;
     }
 
-    public Long getUserId() {
-        return userId;
+    public Long getSemesterId() {
+        return this.semesterId;
     }
 
-    public Subject setUserId(Long userId) {
-        this.userId = userId;
+    public Subject setSemesterId(Long semesterId) {
+        this.semesterId = semesterId;
         return this;
     }
 
     public String getName() {
-        return name;
+        return this.name;
     }
 
     public Subject setName(String name) {
@@ -91,7 +86,7 @@ public class Subject {
     }
 
     public String getPredictedRating() {
-        return predictedRating;
+        return this.predictedRating;
     }
 
     public Subject setPredictedRating(String predictedRating) {
@@ -100,7 +95,7 @@ public class Subject {
     }
 
     public String getFinalRating() {
-        return finalRating;
+        return this.finalRating;
     }
 
     public Subject setFinalRating(String finalRating) {
@@ -108,45 +103,6 @@ public class Subject {
         return this;
     }
 
-    public String getSemester() {
-        return semester;
-    }
-
-    public Subject setSemester(String semester) {
-        this.semester = semester;
-        return this;
-    }
-
-    /**
-     * To-many relationship, resolved on first access (and after reset).
-     * Changes to to-many relations are not persisted, make changes to the target entity.
-     */
-    @Generated(hash = 1358847893)
-    public List<Grade> getGradeList() {
-        if (gradeList == null) {
-            final DaoSession daoSession = this.daoSession;
-            if (daoSession == null) {
-                throw new DaoException("Entity is detached from DAO context");
-            }
-            GradeDao targetDao = daoSession.getGradeDao();
-            List<Grade> gradeListNew = targetDao._querySubject_GradeList(id);
-            synchronized (this) {
-                if (gradeList == null) {
-                    gradeList = gradeListNew;
-                }
-            }
-        }
-        return gradeList;
-    }
-
-    /**
-     * Resets a to-many relationship, making the next get call to query for a fresh result.
-     */
-    @Generated(hash = 1939990047)
-    public synchronized void resetGradeList() {
-        gradeList = null;
-    }
-
     /**
      * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
      * Entity must attached to an entity context.
@@ -183,6 +139,34 @@ public class Subject {
         myDao.update(this);
     }
 
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 1358847893)
+    public List<Grade> getGradeList() {
+        if (gradeList == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            GradeDao targetDao = daoSession.getGradeDao();
+            List<Grade> gradeListNew = targetDao._querySubject_GradeList(id);
+            synchronized (this) {
+                if (gradeList == null) {
+                    gradeList = gradeListNew;
+                }
+            }
+        }
+        return gradeList;
+    }
+
+    /** Resets a to-many relationship, making the next get call to query for a fresh result. */
+    @Generated(hash = 1939990047)
+    public synchronized void resetGradeList() {
+        gradeList = null;
+    }
+
     /** called by internal mechanisms, do not call yourself. */
     @Generated(hash = 937984622)
     public void __setDaoSession(DaoSession daoSession) {

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Symbol.java

@@ -0,0 +1,191 @@
+package io.github.wulkanowy.data.db.dao.entities;
+
+import org.greenrobot.greendao.DaoException;
+import org.greenrobot.greendao.annotation.Entity;
+import org.greenrobot.greendao.annotation.Generated;
+import org.greenrobot.greendao.annotation.Id;
+import org.greenrobot.greendao.annotation.Property;
+import org.greenrobot.greendao.annotation.ToMany;
+
+import java.util.List;
+
+@Entity(
+        nameInDb = "Symbols",
+        active = true
+)
+public class Symbol {
+
+    @Id(autoincrement = true)
+    private Long id;
+
+    @Property(nameInDb = "user_id")
+    private Long userId;
+
+    @Property(nameInDb = "host")
+    private String host;
+
+    @Property(nameInDb = "school_id")
+    private String schoolId;
+
+    @Property(nameInDb = "symbol")
+    private String symbol;
+
+    @Property(nameInDb = "type")
+    private String type;
+
+    @ToMany(referencedJoinProperty = "symbolId")
+    private List<Student> studentList;
+
+    /**
+     * Used to resolve relations
+     */
+    @Generated(hash = 2040040024)
+    private transient DaoSession daoSession;
+
+    /**
+     * Used for active entity operations.
+     */
+    @Generated(hash = 684907977)
+    private transient SymbolDao myDao;
+
+    @Generated(hash = 242774339)
+    public Symbol(Long id, Long userId, String host, String schoolId, String symbol,
+                  String type) {
+        this.id = id;
+        this.userId = userId;
+        this.host = host;
+        this.schoolId = schoolId;
+        this.symbol = symbol;
+        this.type = type;
+    }
+
+    @Generated(hash = 460475327)
+    public Symbol() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getUserId() {
+        return this.userId;
+    }
+
+    public Symbol setUserId(Long userId) {
+        this.userId = userId;
+        return this;
+    }
+
+    public String getHost() {
+        return this.host;
+    }
+
+    public Symbol setHost(String host) {
+        this.host = host;
+        return this;
+    }
+
+    public String getSchoolId() {
+        return this.schoolId;
+    }
+
+    public Symbol setSchoolId(String schoolId) {
+        this.schoolId = schoolId;
+        return this;
+    }
+
+    public String getSymbol() {
+        return this.symbol;
+    }
+
+    public Symbol setSymbol(String symbol) {
+        this.symbol = symbol;
+        return this;
+    }
+
+    public String getType() {
+        return this.type;
+    }
+
+    public Symbol setType(String type) {
+        this.type = type;
+        return this;
+    }
+
+    /**
+     * To-many relationship, resolved on first access (and after reset).
+     * Changes to to-many relations are not persisted, make changes to the target entity.
+     */
+    @Generated(hash = 604366458)
+    public List<Student> getStudentList() {
+        if (studentList == null) {
+            final DaoSession daoSession = this.daoSession;
+            if (daoSession == null) {
+                throw new DaoException("Entity is detached from DAO context");
+            }
+            StudentDao targetDao = daoSession.getStudentDao();
+            List<Student> studentListNew = targetDao._querySymbol_StudentList(id);
+            synchronized (this) {
+                if (studentList == null) {
+                    studentList = studentListNew;
+                }
+            }
+        }
+        return studentList;
+    }
+
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
+    @Generated(hash = 1628625923)
+    public synchronized void resetStudentList() {
+        studentList = null;
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 128553479)
+    public void delete() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.delete(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#refresh(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 1942392019)
+    public void refresh() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.refresh(this);
+    }
+
+    /**
+     * Convenient call for {@link org.greenrobot.greendao.AbstractDao#update(Object)}.
+     * Entity must attached to an entity context.
+     */
+    @Generated(hash = 713229351)
+    public void update() {
+        if (myDao == null) {
+            throw new DaoException("Entity is detached from DAO context");
+        }
+        myDao.update(this);
+    }
+
+    /** called by internal mechanisms, do not call yourself. */
+    @Generated(hash = 632145708)
+    public void __setDaoSession(DaoSession daoSession) {
+        this.daoSession = daoSession;
+        myDao = daoSession != null ? daoSession.getSymbolDao() : null;
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/TimetableLesson.java

@@ -1,5 +1,7 @@
 package io.github.wulkanowy.data.db.dao.entities;
 
+import org.apache.commons.lang3.builder.EqualsBuilder;
+import org.apache.commons.lang3.builder.HashCodeBuilder;
 import org.greenrobot.greendao.DaoException;
 import org.greenrobot.greendao.annotation.Entity;
 import org.greenrobot.greendao.annotation.Generated;
@@ -12,62 +14,62 @@ import java.io.Serializable;
 @Entity(
         nameInDb = "TimetableLessons",
         active = true,
-        indexes = {@Index(value = "dayId,date,startTime,endTime", unique = true)}
+        indexes = {@Index(value = "dayId,date,number,startTime,endTime", unique = true)}
 )
 public class TimetableLesson implements Serializable {
 
+    private static final long serialVersionUID = 42L;
+
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "DAY_ID")
+    @Property(nameInDb = "day_id")
     private Long dayId;
 
-    @Property(nameInDb = "NUMBER_OF_LESSON")
-    private String number;
+    @Property(nameInDb = "number")
+    private int number = 0;
 
-    @Property(nameInDb = "SUBJECT_NAME")
+    @Property(nameInDb = "subject")
     private String subject = "";
 
-    @Property(nameInDb = "TEACHER")
+    @Property(nameInDb = "teacher")
     private String teacher = "";
 
-    @Property(nameInDb = "ROOM")
+    @Property(nameInDb = "room")
     private String room = "";
 
-    @Property(nameInDb = "DESCRIPTION")
+    @Property(nameInDb = "description")
     private String description = "";
 
-    @Property(nameInDb = "GROUP_NAME")
-    private String groupName = "";
+    @Property(nameInDb = "group")
+    private String group = "";
 
-    @Property(nameInDb = "START_TIME")
+    @Property(nameInDb = "start_time")
     private String startTime = "";
 
-    @Property(nameInDb = "END_TIME")
+    @Property(nameInDb = "end_time")
     private String endTime = "";
 
-    @Property(nameInDb = "DATE")
+    @Property(nameInDb = "date")
     private String date = "";
 
-    @Property(nameInDb = "IS_EMPTY")
-    private boolean isEmpty = false;
+    @Property(nameInDb = "empty")
+    private boolean empty = false;
 
-    @Property(nameInDb = "IS_DIVISION_INTO_GROUP")
-    private boolean isDivisionIntoGroups = false;
+    @Property(nameInDb = "division_into_groups")
+    private boolean divisionIntoGroups = false;
 
-    @Property(nameInDb = "IS_PLANNING")
-    private boolean isPlanning = false;
+    @Property(nameInDb = "planning")
+    private boolean planning = false;
 
-    @Property(nameInDb = "IS_REALIZED")
-    private boolean isRealized = false;
+    @Property(nameInDb = "realized")
+    private boolean realized = false;
 
-    @Property(nameInDb = "IS_MOVED_CANCELED")
-    private boolean isMovedOrCanceled = false;
+    @Property(nameInDb = "moved_canceled")
+    private boolean movedOrCanceled = false;
 
-    @Property(nameInDb = "IS_NEW_MOVED_IN_CANCELED")
-    private boolean isNewMovedInOrChanged = false;
-
-    private static final long serialVersionUID = 42L;
+    @Property(nameInDb = "new_moved_in_canceled")
+    private boolean newMovedInOrChanged = false;
 
     /**
      * Used to resolve relations
@@ -75,18 +77,15 @@ public class TimetableLesson implements Serializable {
     @Generated(hash = 2040040024)
     private transient DaoSession daoSession;
 
-    /**
-     * Used for active entity operations.
-     */
+    /** Used for active entity operations. */
     @Generated(hash = 1119360138)
     private transient TimetableLessonDao myDao;
 
-    @Generated(hash = 627457324)
-    public TimetableLesson(Long id, Long dayId, String number, String subject,
-                           String teacher, String room, String description, String groupName,
-                           String startTime, String endTime, String date, boolean isEmpty,
-                           boolean isDivisionIntoGroups, boolean isPlanning, boolean isRealized,
-                           boolean isMovedOrCanceled, boolean isNewMovedInOrChanged) {
+    @Generated(hash = 1665905034)
+    public TimetableLesson(Long id, Long dayId, int number, String subject, String teacher,
+                           String room, String description, String group, String startTime, String endTime,
+                           String date, boolean empty, boolean divisionIntoGroups, boolean planning,
+                           boolean realized, boolean movedOrCanceled, boolean newMovedInOrChanged) {
         this.id = id;
         this.dayId = dayId;
         this.number = number;
@@ -94,22 +93,22 @@ public class TimetableLesson implements Serializable {
         this.teacher = teacher;
         this.room = room;
         this.description = description;
-        this.groupName = groupName;
+        this.group = group;
         this.startTime = startTime;
         this.endTime = endTime;
         this.date = date;
-        this.isEmpty = isEmpty;
-        this.isDivisionIntoGroups = isDivisionIntoGroups;
-        this.isPlanning = isPlanning;
-        this.isRealized = isRealized;
-        this.isMovedOrCanceled = isMovedOrCanceled;
-        this.isNewMovedInOrChanged = isNewMovedInOrChanged;
+        this.empty = empty;
+        this.divisionIntoGroups = divisionIntoGroups;
+        this.planning = planning;
+        this.realized = realized;
+        this.movedOrCanceled = movedOrCanceled;
+        this.newMovedInOrChanged = newMovedInOrChanged;
     }
 
     @Generated(hash = 1878030142)
     public TimetableLesson() {
     }
-
+    
     public Long getId() {
         return this.id;
     }
@@ -122,15 +121,16 @@ public class TimetableLesson implements Serializable {
         return this.dayId;
     }
 
-    public void setDayId(Long dayId) {
+    public TimetableLesson setDayId(Long dayId) {
         this.dayId = dayId;
+        return this;
     }
 
-    public String getNumber() {
+    public int getNumber() {
         return this.number;
     }
 
-    public TimetableLesson setNumber(String number) {
+    public TimetableLesson setNumber(int number) {
         this.number = number;
         return this;
     }
@@ -171,12 +171,12 @@ public class TimetableLesson implements Serializable {
         return this;
     }
 
-    public String getGroupName() {
-        return this.groupName;
+    public String getGroup() {
+        return this.group;
     }
 
-    public TimetableLesson setGroupName(String groupName) {
-        this.groupName = groupName;
+    public TimetableLesson setGroup(String group) {
+        this.group = group;
         return this;
     }
 
@@ -207,60 +207,86 @@ public class TimetableLesson implements Serializable {
         return this;
     }
 
-    public boolean getIsEmpty() {
-        return this.isEmpty;
+    public boolean getEmpty() {
+        return this.empty;
     }
 
-    public TimetableLesson setEmpty(boolean isEmpty) {
-        this.isEmpty = isEmpty;
+    public TimetableLesson setEmpty(boolean empty) {
+        this.empty = empty;
         return this;
     }
 
-    public boolean getIsDivisionIntoGroups() {
-        return this.isDivisionIntoGroups;
+    public boolean getDivisionIntoGroups() {
+        return this.divisionIntoGroups;
     }
 
-    public TimetableLesson setDivisionIntoGroups(boolean isDivisionIntoGroups) {
-        this.isDivisionIntoGroups = isDivisionIntoGroups;
+    public TimetableLesson setDivisionIntoGroups(boolean divisionIntoGroups) {
+        this.divisionIntoGroups = divisionIntoGroups;
         return this;
     }
 
-    public boolean getIsPlanning() {
-        return this.isPlanning;
+    public boolean getPlanning() {
+        return this.planning;
     }
 
-    public TimetableLesson setPlanning(boolean isPlanning) {
-        this.isPlanning = isPlanning;
+    public TimetableLesson setPlanning(boolean planning) {
+        this.planning = planning;
         return this;
     }
 
-    public boolean getIsRealized() {
-        return this.isRealized;
+    public boolean getRealized() {
+        return this.realized;
     }
 
-    public TimetableLesson setRealized(boolean isRealized) {
-        this.isRealized = isRealized;
+    public TimetableLesson setRealized(boolean realized) {
+        this.realized = realized;
         return this;
     }
 
-    public boolean getIsMovedOrCanceled() {
-        return this.isMovedOrCanceled;
+    public boolean getMovedOrCanceled() {
+        return this.movedOrCanceled;
     }
 
-    public TimetableLesson setMovedOrCanceled(boolean isMovedOrCanceled) {
-        this.isMovedOrCanceled = isMovedOrCanceled;
+    public TimetableLesson setMovedOrCanceled(boolean movedOrCanceled) {
+        this.movedOrCanceled = movedOrCanceled;
         return this;
     }
 
-    public boolean getIsNewMovedInOrChanged() {
-        return this.isNewMovedInOrChanged;
+    public boolean getNewMovedInOrChanged() {
+        return this.newMovedInOrChanged;
     }
 
-    public TimetableLesson setNewMovedInOrChanged(boolean isNewMovedInOrChanged) {
-        this.isNewMovedInOrChanged = isNewMovedInOrChanged;
+    public TimetableLesson setNewMovedInOrChanged(boolean newMovedInOrChanged) {
+        this.newMovedInOrChanged = newMovedInOrChanged;
         return this;
     }
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+
+        if (o == null || getClass() != o.getClass()) return false;
+
+        TimetableLesson lesson = (TimetableLesson) o;
+
+        return new EqualsBuilder()
+                .append(number, lesson.number)
+                .append(startTime, lesson.startTime)
+                .append(endTime, lesson.endTime)
+                .append(date, lesson.date)
+                .isEquals();
+    }
+
+    @Override
+    public int hashCode() {
+        return new HashCodeBuilder(17, 37)
+                .append(number)
+                .append(startTime)
+                .append(endTime)
+                .append(date)
+                .toHashCode();
+    }
+
     /**
      * Convenient call for {@link org.greenrobot.greendao.AbstractDao#delete(Object)}.
      * Entity must attached to an entity context.
@@ -297,30 +323,6 @@ public class TimetableLesson implements Serializable {
         myDao.update(this);
     }
 
-    public void setIsEmpty(boolean isEmpty) {
-        this.isEmpty = isEmpty;
-    }
-
-    public void setIsDivisionIntoGroups(boolean isDivisionIntoGroups) {
-        this.isDivisionIntoGroups = isDivisionIntoGroups;
-    }
-
-    public void setIsPlanning(boolean isPlanning) {
-        this.isPlanning = isPlanning;
-    }
-
-    public void setIsRealized(boolean isRealized) {
-        this.isRealized = isRealized;
-    }
-
-    public void setIsMovedOrCanceled(boolean isMovedOrCanceled) {
-        this.isMovedOrCanceled = isMovedOrCanceled;
-    }
-
-    public void setIsNewMovedInOrChanged(boolean isNewMovedInOrChanged) {
-        this.isNewMovedInOrChanged = isNewMovedInOrChanged;
-    }
-
     /** called by internal mechanisms, do not call yourself. */
     @Generated(hash = 1885258429)
     public void __setDaoSession(DaoSession daoSession) {

app/src/main/java/io/github/wulkanowy/data/db/dao/entities/Week.java

@@ -13,44 +13,52 @@ import java.util.List;
 @Entity(
         nameInDb = "Weeks",
         active = true,
-        indexes ={@Index(value = "userId,startDayDate", unique = true)}
+        indexes = {@Index(value = "diaryId,startDayDate", unique = true)}
 )
 public class Week {
 
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "USER_ID")
-    private Long userId;
+    @Property(nameInDb = "diary_id")
+    private Long diaryId;
 
-    @Property(nameInDb = "START_DATE")
+    @Property(nameInDb = "start_day_date")
     private String startDayDate = "";
 
-    @Property(nameInDb = "IS_ATTENDANCE_SYNCED")
-    private boolean isAttendanceSynced = false;
+    @Property(nameInDb = "attendance_synced")
+    private boolean attendanceSynced = false;
 
-    @Property(nameInDb = "IS_TIMETABLE_SYNCED")
-    private boolean isTimetableSynced = false;
+    @Property(nameInDb = "timetable_synced")
+    private boolean timetableSynced = false;
+
+    @Property(nameInDb = "exams_synced")
+    private boolean examsSynced = false;
 
     @ToMany(referencedJoinProperty = "weekId")
     private List<Day> dayList;
 
-    /** Used to resolve relations */
+    /**
+     * Used to resolve relations
+     */
     @Generated(hash = 2040040024)
     private transient DaoSession daoSession;
 
-    /** Used for active entity operations. */
+    /**
+     * Used for active entity operations.
+     */
     @Generated(hash = 1019310398)
     private transient WeekDao myDao;
 
-    @Generated(hash = 1745118398)
-    public Week(Long id, Long userId, String startDayDate, boolean isAttendanceSynced,
-            boolean isTimetableSynced) {
+    @Generated(hash = 23357599)
+    public Week(Long id, Long diaryId, String startDayDate, boolean attendanceSynced,
+                boolean timetableSynced, boolean examsSynced) {
         this.id = id;
-        this.userId = userId;
+        this.diaryId = diaryId;
         this.startDayDate = startDayDate;
-        this.isAttendanceSynced = isAttendanceSynced;
-        this.isTimetableSynced = isTimetableSynced;
+        this.attendanceSynced = attendanceSynced;
+        this.timetableSynced = timetableSynced;
+        this.examsSynced = examsSynced;
     }
 
     @Generated(hash = 2135529658)
@@ -66,12 +74,12 @@ public class Week {
         return this;
     }
 
-    public Long getUserId() {
-        return userId;
+    public Long getDiaryId() {
+        return diaryId;
     }
 
-    public Week setUserId(Long userId) {
-        this.userId = userId;
+    public Week setDiaryId(Long diaryId) {
+        this.diaryId = diaryId;
         return this;
     }
 
@@ -84,20 +92,31 @@ public class Week {
         return this;
     }
 
-    public boolean getIsAttendanceSynced() {
-        return this.isAttendanceSynced;
+    public boolean getAttendanceSynced() {
+        return this.attendanceSynced;
     }
 
-    public void setIsAttendanceSynced(boolean isAttendanceSynced) {
-        this.isAttendanceSynced = isAttendanceSynced;
+    public Week setAttendanceSynced(boolean attendanceSynced) {
+        this.attendanceSynced = attendanceSynced;
+        return this;
     }
 
-    public boolean getIsTimetableSynced() {
-        return this.isTimetableSynced;
+    public boolean getTimetableSynced() {
+        return this.timetableSynced;
     }
 
-    public void setIsTimetableSynced(boolean isTimetableSynced) {
-        this.isTimetableSynced = isTimetableSynced;
+    public Week setTimetableSynced(boolean timetableSynced) {
+        this.timetableSynced = timetableSynced;
+        return this;
+    }
+
+    public Week setExamsSynced(boolean examsSynced) {
+        this.examsSynced = examsSynced;
+        return this;
+    }
+
+    public boolean getExamsSynced() {
+        return examsSynced;
     }
 
     /**
@@ -122,7 +141,9 @@ public class Week {
         return dayList;
     }
 
-    /** Resets a to-many relationship, making the next get call to query for a fresh result. */
+    /**
+     * Resets a to-many relationship, making the next get call to query for a fresh result.
+     */
     @Generated(hash = 1010399236)
     public synchronized void resetDayList() {
         dayList = null;

app/src/main/java/io/github/wulkanowy/data/db/dao/migrations/Migration23.java

@@ -0,0 +1,114 @@
+package io.github.wulkanowy.data.db.dao.migrations;
+
+import android.database.Cursor;
+import android.os.AsyncTask;
+
+import org.greenrobot.greendao.database.Database;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.api.generic.Diary;
+import io.github.wulkanowy.data.db.dao.DbHelper;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+import io.github.wulkanowy.utils.security.Scrambler;
+
+public class Migration23 implements DbHelper.Migration {
+
+    @Override
+    public Integer getVersion() {
+        return 23;
+    }
+
+    @Override
+    public void runMigration(final Database db, final SharedPrefContract sharedPref, final Vulcan vulcan) throws Exception {
+        createDiaryTable(db);
+        migrateAccountsTable(db);
+
+        final Map<String, String> user = getAccountData(db);
+        vulcan.setCredentials(
+                user.get("email"),
+                Scrambler.decrypt(user.get("email"), user.get("password")),
+                user.get("symbol"),
+                user.get("school_id"),
+                "", // inserted in code bellow
+                ""
+        );
+
+        AsyncTask.execute(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    insertDiaries(db, vulcan.getStudentAndParent().getDiaries());
+                    updateAccount(db, vulcan.getStudentAndParent().getStudentID());
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        });
+    }
+
+    private void createDiaryTable(Database db) {
+        db.execSQL("DROP TABLE IF EXISTS Diaries");
+        db.execSQL("CREATE TABLE IF NOT EXISTS \"Diaries\" (" + //
+                "\"_id\" INTEGER PRIMARY KEY AUTOINCREMENT ," + // 0: id
+                "\"STUDENT_ID\" TEXT," + // 1: studentId
+                "\"NAME\" TEXT," + // 2: name
+                "\"VALUE\" TEXT," + // 3: value
+                "\"IS_CURRENT\" INTEGER NOT NULL );"); // 4: isCurrent
+    }
+
+    private void migrateAccountsTable(Database db) {
+        db.execSQL("DROP TABLE IF EXISTS tmp_account");
+        db.execSQL("ALTER TABLE Accounts RENAME TO tmp_account");
+        db.execSQL("CREATE TABLE IF NOT EXISTS \"Accounts\" (" + //
+                "\"_id\" INTEGER PRIMARY KEY AUTOINCREMENT ," + // 0: id
+                "\"REAL_ID\" TEXT," + // 1: realId
+                "\"SYMBOL\" TEXT," + // 2: symbol
+                "\"SCHOOL_ID\" TEXT," + // 3: schoolId
+                "\"NAME\" TEXT," + // 4: name
+                "\"E_MAIL\" TEXT," + // 5: email
+                "\"PASSWORD\" TEXT);"); // 6: password
+        // Add Indexes
+        db.execSQL("CREATE UNIQUE INDEX IF NOT EXISTS IDX_Accounts_REAL_ID ON \"Accounts\" (\"REAL_ID\" ASC);");
+        db.execSQL("INSERT INTO Accounts(NAME, E_MAIL, PASSWORD, SYMBOL, SCHOOL_ID)" +
+                "SELECT `NAME`, `E-MAIL`, `PASSWORD`, `SYMBOL`, `SNPID` FROM tmp_account");
+        db.execSQL("DROP TABLE tmp_account");
+    }
+
+    private Map<String, String> getAccountData(Database db) {
+        Map<String, String> values = new HashMap<>();
+        Cursor cursor = db.rawQuery("SELECT SYMBOL, SCHOOL_ID, NAME, E_MAIL, PASSWORD FROM Accounts", null);
+
+        if (cursor.moveToFirst()) {
+            do {
+                values.put("symbol", cursor.getString(cursor.getColumnIndex("SYMBOL")));
+                values.put("school_id", cursor.getString(cursor.getColumnIndex("SCHOOL_ID")));
+                values.put("name", cursor.getString(cursor.getColumnIndex("NAME")));
+                values.put("email", cursor.getString(cursor.getColumnIndex("E_MAIL")));
+                values.put("password", cursor.getString(cursor.getColumnIndex("PASSWORD")));
+            } while (cursor.moveToNext());
+        }
+
+        cursor.close();
+
+        return values;
+    }
+
+    private void insertDiaries(Database db, List<Diary> list) {
+        for (Diary diary : list) {
+            db.execSQL("INSERT INTO Diaries(STUDENT_ID, NAME, VALUE, IS_CURRENT) VALUES(" +
+                    "\"" + diary.getId() + "\"," +
+                    "\"" + diary.getName() + "\"," +
+                    "\"" + diary.getId() + "\"," +
+                    "\"" + (diary.isCurrent() ? "1" : "0") + "\"" +
+                    ")");
+        }
+    }
+
+    private void updateAccount(Database db, String realId) {
+        db.execSQL("UPDATE Accounts SET REAL_ID = ?", new String[]{realId});
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/migrations/Migration26.java

@@ -0,0 +1,20 @@
+package io.github.wulkanowy.data.db.dao.migrations;
+
+import org.greenrobot.greendao.database.Database;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.data.db.dao.DbHelper;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+
+public class Migration26 implements DbHelper.Migration {
+
+    @Override
+    public Integer getVersion() {
+        return 26;
+    }
+
+    @Override
+    public void runMigration(final Database db, final SharedPrefContract sharedPref, final Vulcan vulcan) throws Exception {
+        throw new Exception("No migrations");
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/migrations/Migration27.java

@@ -0,0 +1,24 @@
+package io.github.wulkanowy.data.db.dao.migrations;
+
+import org.greenrobot.greendao.database.Database;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.data.db.dao.DbHelper;
+import io.github.wulkanowy.data.db.dao.entities.ExamDao;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+
+public class Migration27 implements DbHelper.Migration {
+
+    @Override
+    public Integer getVersion() {
+        return 27;
+    }
+
+    @Override
+    public void runMigration(Database db, SharedPrefContract sharedPref, Vulcan vulcan) throws Exception {
+        ExamDao.dropTable(db, true);
+        ExamDao.createTable(db, true);
+
+        db.execSQL("UPDATE Weeks SET exams_synced = 0");
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/dao/migrations/Migration28.java

@@ -0,0 +1,20 @@
+package io.github.wulkanowy.data.db.dao.migrations;
+
+import org.greenrobot.greendao.database.Database;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.data.db.dao.DbHelper;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+
+public class Migration28 implements DbHelper.Migration {
+
+    @Override
+    public Integer getVersion() {
+        return 28;
+    }
+
+    @Override
+    public void runMigration(final Database db, final SharedPrefContract sharedPref, final Vulcan vulcan) throws Exception {
+        throw new Exception("No migrations");
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/resources/ResourcesContract.java

@@ -1,7 +1,10 @@
 package io.github.wulkanowy.data.db.resources;
 
+import javax.inject.Singleton;
+
 import io.github.wulkanowy.data.db.dao.entities.AttendanceLesson;
 
+@Singleton
 public interface ResourcesContract {
 
     String[] getSymbolsKeysArray();

app/src/main/java/io/github/wulkanowy/data/db/resources/ResourcesRepository.java

@@ -13,18 +13,17 @@ import javax.inject.Singleton;
 import io.github.wulkanowy.R;
 import io.github.wulkanowy.api.NotLoggedInErrorException;
 import io.github.wulkanowy.data.db.dao.entities.AttendanceLesson;
-import io.github.wulkanowy.di.annotations.ApplicationContext;
 import io.github.wulkanowy.utils.AppConstant;
-import io.github.wulkanowy.utils.LogUtils;
 import io.github.wulkanowy.utils.security.CryptoException;
+import timber.log.Timber;
 
 @Singleton
-public class AppResources implements ResourcesContract {
+public class ResourcesRepository implements ResourcesContract {
 
     private Resources resources;
 
     @Inject
-    AppResources(@ApplicationContext Context context) {
+    ResourcesRepository(Context context) {
         resources = context.getResources();
     }
 
@@ -40,7 +39,7 @@ public class AppResources implements ResourcesContract {
 
     @Override
     public String getErrorLoginMessage(Exception exception) {
-        LogUtils.error(AppConstant.APP_NAME + " encountered a error", exception);
+        Timber.e(exception,"%s encountered a error", AppConstant.APP_NAME);
 
         if (exception instanceof CryptoException) {
             return resources.getString(R.string.encrypt_failed_text);
@@ -49,7 +48,7 @@ public class AppResources implements ResourcesContract {
         } else if (exception instanceof SocketTimeoutException) {
             return resources.getString(R.string.generic_timeout_error);
         } else if (exception instanceof NotLoggedInErrorException || exception instanceof IOException) {
-            return resources.getString(R.string.login_denied_text);
+            return resources.getString(R.string.login_failed_text);
         } else {
             return exception.getMessage();
         }
@@ -59,28 +58,28 @@ public class AppResources implements ResourcesContract {
     public String getAttendanceLessonDescription(AttendanceLesson lesson) {
         int id = R.string.attendance_present;
 
-        if (lesson.getIsAbsenceForSchoolReasons()) {
+        if (lesson.getAbsenceForSchoolReasons()) {
             id = R.string.attendance_absence_for_school_reasons;
         }
 
-        if (lesson.getIsAbsenceExcused()) {
-            id =  R.string.attendance_absence_excused;
+        if (lesson.getAbsenceExcused()) {
+            id = R.string.attendance_absence_excused;
         }
 
-        if (lesson.getIsAbsenceUnexcused()) {
-            id =  R.string.attendance_absence_unexcused;
+        if (lesson.getAbsenceUnexcused()) {
+            id = R.string.attendance_absence_unexcused;
         }
 
-        if (lesson.getIsExemption()) {
-            id =  R.string.attendance_exemption;
+        if (lesson.getExemption()) {
+            id = R.string.attendance_exemption;
         }
 
-        if (lesson.getIsExcusedLateness()) {
-            id =  R.string.attendance_excused_lateness;
+        if (lesson.getExcusedLateness()) {
+            id = R.string.attendance_excused_lateness;
         }
 
-        if (lesson.getIsUnexcusedLateness()) {
-            id =  R.string.attendance_unexcused_lateness;
+        if (lesson.getUnexcusedLateness()) {
+            id = R.string.attendance_unexcused_lateness;
         }
 
         return resources.getString(id);

app/src/main/java/io/github/wulkanowy/data/db/shared/SharedPref.java

@@ -1,33 +0,0 @@
-package io.github.wulkanowy.data.db.shared;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-
-import javax.inject.Inject;
-import javax.inject.Singleton;
-
-import io.github.wulkanowy.di.annotations.ApplicationContext;
-import io.github.wulkanowy.di.annotations.SharedPreferencesInfo;
-
-@Singleton
-public class SharedPref implements SharedPrefContract {
-
-    private static final String SHARED_KEY_USER_ID = "USER_ID";
-
-    private final SharedPreferences sharedPreferences;
-
-    @Inject
-    SharedPref(@ApplicationContext Context context, @SharedPreferencesInfo String sharedName) {
-        sharedPreferences = context.getSharedPreferences(sharedName, Context.MODE_PRIVATE);
-    }
-
-    @Override
-    public long getCurrentUserId() {
-        return sharedPreferences.getLong(SHARED_KEY_USER_ID, 0);
-    }
-
-    @Override
-    public void setCurrentUserId(long userId) {
-        sharedPreferences.edit().putLong(SHARED_KEY_USER_ID, userId).apply();
-    }
-}

app/src/main/java/io/github/wulkanowy/data/db/shared/SharedPrefContract.java

@@ -1,8 +1,35 @@
 package io.github.wulkanowy.data.db.shared;
 
+import javax.inject.Singleton;
+
+@Singleton
 public interface SharedPrefContract {
 
     long getCurrentUserId();
 
+    boolean isUserLoggedIn();
+
     void setCurrentUserId(long userId);
+
+    void setTimetableWidgetState(boolean nextDay);
+
+    boolean getTimetableWidgetState();
+
+    int getStartupTab();
+
+    boolean isShowGradesSummary();
+
+    boolean isShowAttendancePresent();
+
+    int getCurrentTheme();
+
+    int getServicesInterval();
+
+    boolean isMobileDisable();
+
+    boolean isServicesEnable();
+
+    boolean isNotifyEnable();
+
+    void cleanSharedPref();
 }

app/src/main/java/io/github/wulkanowy/data/db/shared/SharedPrefRepository.java

@@ -0,0 +1,102 @@
+package io.github.wulkanowy.data.db.shared;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+import javax.inject.Singleton;
+
+import io.github.wulkanowy.ui.main.settings.SettingsFragment;
+
+@Singleton
+public class SharedPrefRepository implements SharedPrefContract {
+
+    private static final String SHARED_KEY_USER_ID = "USER_ID";
+
+    private static final String SHARED_KEY_TIMETABLE_WIDGET_STATE = "TIMETABLE_WIDGET_STATE";
+
+    private final SharedPreferences appSharedPref;
+
+    private final SharedPreferences settingsSharedPref;
+
+    @Inject
+    SharedPrefRepository(Context context, @Named("sharedPrefName") String sharedName) {
+        appSharedPref = context.getSharedPreferences(sharedName, Context.MODE_PRIVATE);
+        settingsSharedPref = PreferenceManager.getDefaultSharedPreferences(context);
+    }
+
+    @Override
+    public long getCurrentUserId() {
+        return appSharedPref.getLong(SHARED_KEY_USER_ID, 0);
+    }
+
+    @Override
+    public boolean isUserLoggedIn() {
+        return getCurrentUserId() != 0;
+    }
+
+    @Override
+    public void setCurrentUserId(long userId) {
+        appSharedPref.edit().putLong(SHARED_KEY_USER_ID, userId).apply();
+    }
+
+    @SuppressLint("ApplySharedPref")
+    @Override
+    public void setTimetableWidgetState(boolean nextDay) {
+        appSharedPref.edit().putBoolean(SHARED_KEY_TIMETABLE_WIDGET_STATE, nextDay).commit();
+    }
+
+    @Override
+    public boolean getTimetableWidgetState() {
+        return appSharedPref.getBoolean(SHARED_KEY_TIMETABLE_WIDGET_STATE, false);
+    }
+
+    @Override
+    public int getStartupTab() {
+        return Integer.parseInt(settingsSharedPref.getString(SettingsFragment.SHARED_KEY_START_TAB, "0"));
+    }
+
+    @Override
+    public boolean isShowGradesSummary() {
+        return settingsSharedPref.getBoolean(SettingsFragment.SHARED_KEY_GRADES_SUMMARY, false);
+    }
+
+    @Override
+    public boolean isShowAttendancePresent() {
+        return settingsSharedPref.getBoolean(SettingsFragment.SHARED_KEY_ATTENDANCE_PRESENT, false);
+    }
+
+    @Override
+    public int getCurrentTheme() {
+        return Integer.parseInt(settingsSharedPref.getString(SettingsFragment.SHARED_KEY_THEME, "1"));
+    }
+
+    @Override
+    public int getServicesInterval() {
+        return Integer.parseInt(settingsSharedPref.getString(SettingsFragment.SHARED_KEY_SERVICES_INTERVAL, "60"));
+    }
+
+    @Override
+    public boolean isServicesEnable() {
+        return settingsSharedPref.getBoolean(SettingsFragment.SHARED_KEY_SERVICES_ENABLE, true);
+    }
+
+    @Override
+    public boolean isNotifyEnable() {
+        return settingsSharedPref.getBoolean(SettingsFragment.SHARED_KEY_NOTIFY_ENABLE, true);
+    }
+
+    @Override
+    public boolean isMobileDisable() {
+        return settingsSharedPref.getBoolean(SettingsFragment.SHARED_KEY_SERVICES_MOBILE_DISABLED, false);
+    }
+
+    @Override
+    public void cleanSharedPref() {
+        appSharedPref.edit().clear().apply();
+        settingsSharedPref.edit().clear().apply();
+    }
+}

app/src/main/java/io/github/wulkanowy/data/sync/AccountSync.java

@@ -0,0 +1,167 @@
+package io.github.wulkanowy.data.sync;
+
+import android.content.Context;
+
+import org.greenrobot.greendao.database.Database;
+
+import java.io.IOException;
+import java.util.List;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.api.VulcanException;
+import io.github.wulkanowy.data.db.dao.entities.Account;
+import io.github.wulkanowy.data.db.dao.entities.DaoMaster;
+import io.github.wulkanowy.data.db.dao.entities.DaoSession;
+import io.github.wulkanowy.data.db.dao.entities.Diary;
+import io.github.wulkanowy.data.db.dao.entities.DiaryDao;
+import io.github.wulkanowy.data.db.dao.entities.Semester;
+import io.github.wulkanowy.data.db.dao.entities.Student;
+import io.github.wulkanowy.data.db.dao.entities.StudentDao;
+import io.github.wulkanowy.data.db.dao.entities.Symbol;
+import io.github.wulkanowy.data.db.dao.entities.SymbolDao;
+import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+import io.github.wulkanowy.utils.DataObjectConverter;
+import io.github.wulkanowy.utils.security.CryptoException;
+import io.github.wulkanowy.utils.security.Scrambler;
+import timber.log.Timber;
+
+@Singleton
+public class AccountSync {
+
+    private final DaoSession daoSession;
+
+    private final SharedPrefContract sharedPref;
+
+    private final Vulcan vulcan;
+
+    private final Context context;
+
+    @Inject
+    AccountSync(DaoSession daoSession, SharedPrefContract sharedPref,
+                Vulcan vulcan, Context context) {
+        this.daoSession = daoSession;
+        this.sharedPref = sharedPref;
+        this.vulcan = vulcan;
+        this.context = context;
+    }
+
+    public void registerUser(String email, String password, String symbol)
+            throws VulcanException, IOException, CryptoException {
+
+        clearUserData();
+
+        vulcan.setCredentials(email, password, symbol, null, null, null);
+
+        daoSession.getDatabase().beginTransaction();
+
+        try {
+            Account account = insertAccount(email, password);
+            Symbol symbolEntity = insertSymbol(account);
+            insertStudents(symbolEntity);
+            insertDiaries(symbolEntity);
+            insertSemesters();
+
+            sharedPref.setCurrentUserId(account.getId());
+
+            daoSession.getDatabase().setTransactionSuccessful();
+        } finally {
+            daoSession.getDatabase().endTransaction();
+        }
+    }
+
+    private Account insertAccount(String email, String password) throws CryptoException {
+        Timber.d("Register account");
+        Account account = new Account()
+                .setEmail(email)
+                .setPassword(Scrambler.encrypt(email, password, context));
+        daoSession.getAccountDao().insert(account);
+        return account;
+    }
+
+    private Symbol insertSymbol(Account account) throws VulcanException, IOException {
+        String schoolId = vulcan.getStudentAndParent().getSchoolID();
+        Timber.d("Register symbol %s", vulcan.getSymbol());
+        Symbol symbol = new Symbol()
+                .setUserId(account.getId())
+                .setSchoolId(schoolId)
+                .setSymbol(vulcan.getSymbol());
+        daoSession.getSymbolDao().insert(symbol);
+
+        return symbol;
+    }
+
+    private void insertStudents(Symbol symbol) throws VulcanException, IOException {
+        List<Student> studentList = DataObjectConverter.studentsToStudentEntities(
+                vulcan.getStudentAndParent().getStudents(),
+                symbol.getId()
+        );
+        Timber.d("Register students %s", studentList.size());
+        daoSession.getStudentDao().insertInTx(studentList);
+    }
+
+    private void insertDiaries(Symbol symbolEntity) throws VulcanException, IOException {
+        List<Diary> diaryList = DataObjectConverter.diariesToDiaryEntities(
+                vulcan.getStudentAndParent().getDiaries(),
+                daoSession.getStudentDao().queryBuilder().where(
+                        StudentDao.Properties.SymbolId.eq(symbolEntity.getId()),
+                        StudentDao.Properties.Current.eq(true)
+                ).unique().getId());
+        Timber.d("Register diaries %s", diaryList.size());
+        daoSession.getDiaryDao().insertInTx(diaryList);
+    }
+
+    private void insertSemesters() throws VulcanException, IOException {
+        List<Semester> semesterList = DataObjectConverter.semestersToSemesterEntities(
+                vulcan.getStudentAndParent().getSemesters(),
+                daoSession.getDiaryDao().queryBuilder().where(
+                        DiaryDao.Properties.Current.eq(true)
+                ).unique().getId());
+        Timber.d("Register semesters %s", semesterList.size());
+        daoSession.getSemesterDao().insertInTx(semesterList);
+    }
+
+    public void initLastUser() throws CryptoException {
+
+        long userId = sharedPref.getCurrentUserId();
+
+        if (userId == 0) {
+            throw new NotRegisteredUserException("Can't find user id in SharedPreferences");
+        }
+
+        Timber.d("Init current user (%s)", userId);
+
+        Account account = daoSession.getAccountDao().load(userId);
+
+        Symbol symbol = daoSession.getSymbolDao().queryBuilder().where(
+                SymbolDao.Properties.UserId.eq(account.getId())).unique();
+
+        Student student = daoSession.getStudentDao().queryBuilder().where(
+                StudentDao.Properties.SymbolId.eq(symbol.getId()),
+                StudentDao.Properties.Current.eq(true)
+        ).unique();
+
+        Diary diary = daoSession.getDiaryDao().queryBuilder().where(
+                DiaryDao.Properties.StudentId.eq(student.getId()),
+                DiaryDao.Properties.Current.eq(true)
+        ).unique();
+
+        vulcan.setCredentials(
+                account.getEmail(),
+                Scrambler.decrypt(account.getEmail(), account.getPassword()),
+                symbol.getSymbol(),
+                symbol.getSchoolId(),
+                student.getRealId(),
+                diary.getValue()
+        );
+    }
+
+    private void clearUserData() {
+        Database database = daoSession.getDatabase();
+        DaoMaster.dropAllTables(database, true);
+        DaoMaster.createAllTables(database, true);
+        sharedPref.setCurrentUserId(0);
+    }
+}

app/src/main/java/io/github/wulkanowy/data/sync/AttendanceSync.java

@@ -1,7 +1,6 @@
-package io.github.wulkanowy.data.sync.attendance;
+package io.github.wulkanowy.data.sync;
 
 import java.io.IOException;
-import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -18,39 +17,28 @@ import io.github.wulkanowy.data.db.dao.entities.Day;
 import io.github.wulkanowy.data.db.dao.entities.DayDao;
 import io.github.wulkanowy.data.db.dao.entities.Week;
 import io.github.wulkanowy.data.db.dao.entities.WeekDao;
-import io.github.wulkanowy.data.db.shared.SharedPrefContract;
 import io.github.wulkanowy.utils.DataObjectConverter;
-import io.github.wulkanowy.utils.LogUtils;
-import io.github.wulkanowy.utils.TimeUtils;
+import timber.log.Timber;
 
 @Singleton
-public class AttendanceSync implements AttendanceSyncContract {
+public class AttendanceSync {
 
     private final DaoSession daoSession;
 
-    private final SharedPrefContract sharedPref;
-
     private final Vulcan vulcan;
 
-    private long userId;
+    private long diaryId;
 
     @Inject
-    AttendanceSync(DaoSession daoSession, SharedPrefContract sharedPref, Vulcan vulcan) {
+    AttendanceSync(DaoSession daoSession, Vulcan vulcan) {
         this.daoSession = daoSession;
-        this.sharedPref = sharedPref;
         this.vulcan = vulcan;
     }
 
-    @Override
-    public void syncAttendance() throws IOException, ParseException, VulcanException {
-        syncAttendance(null);
-    }
+    public void syncAttendance(long diaryId, String date) throws IOException, VulcanException {
+        this.diaryId = diaryId;
 
-    @Override
-    public void syncAttendance(String date) throws IOException, ParseException, VulcanException {
-        this.userId = sharedPref.getCurrentUserId();
-
-        io.github.wulkanowy.api.generic.Week<io.github.wulkanowy.api.generic.Day> weekApi = getWeekFromApi(getNormalizedDate(date));
+        io.github.wulkanowy.api.generic.Week<io.github.wulkanowy.api.generic.Day> weekApi = getWeekFromApi(date);
         Week weekDb = getWeekFromDb(weekApi.getStartDayDate());
 
         long weekId = updateWeekInDb(weekDb, weekApi);
@@ -59,35 +47,31 @@ public class AttendanceSync implements AttendanceSyncContract {
 
         daoSession.getAttendanceLessonDao().saveInTx(lessonList);
 
-        LogUtils.debug("Synchronization attendance lessons (amount = " + lessonList.size() + ")");
-    }
-
-    private String getNormalizedDate(String date) throws ParseException {
-        return null != date ? String.valueOf(TimeUtils.getNetTicks(date)) : "";
+        Timber.d("Attendance synchronization complete (%s)", lessonList.size());
     }
 
     private io.github.wulkanowy.api.generic.Week<io.github.wulkanowy.api.generic.Day> getWeekFromApi(String date)
-            throws IOException, ParseException, VulcanException {
+            throws IOException, VulcanException {
         return vulcan.getAttendanceTable().getWeekTable(date);
     }
 
     private Week getWeekFromDb(String date) {
-        return daoSession.getWeekDao()
-                .queryBuilder()
-                .where(WeekDao.Properties.UserId.eq(userId), WeekDao.Properties.StartDayDate.eq(date))
-                .unique();
+        return daoSession.getWeekDao().queryBuilder().where(
+                WeekDao.Properties.DiaryId.eq(diaryId),
+                WeekDao.Properties.StartDayDate.eq(date)
+        ).unique();
     }
 
     private Long updateWeekInDb(Week dbWeekEntity, io.github.wulkanowy.api.generic.Week fromApi) {
         if (dbWeekEntity != null) {
-            dbWeekEntity.setIsAttendanceSynced(true);
+            dbWeekEntity.setAttendanceSynced(true);
             dbWeekEntity.update();
 
             return dbWeekEntity.getId();
         }
 
-        Week apiWeekEntity = DataObjectConverter.weekToWeekEntity(fromApi).setUserId(userId);
-        apiWeekEntity.setIsAttendanceSynced(true);
+        Week apiWeekEntity = DataObjectConverter.weekToWeekEntity(fromApi).setDiaryId(diaryId);
+        apiWeekEntity.setAttendanceSynced(true);
 
         return daoSession.getWeekDao().insert(apiWeekEntity);
     }
@@ -97,7 +81,7 @@ public class AttendanceSync implements AttendanceSyncContract {
 
         for (io.github.wulkanowy.api.generic.Day dayFromApi : dayListFromApi) {
 
-            Day dbDayEntity = getDayFromDb(dayFromApi.getDate());
+            Day dbDayEntity = getDayFromDb(dayFromApi.getDate(), weekId);
 
             Day apiDayEntity = DataObjectConverter.dayToDayEntity(dayFromApi);
 
@@ -109,11 +93,12 @@ public class AttendanceSync implements AttendanceSyncContract {
         return updatedLessonList;
     }
 
-    private Day getDayFromDb(String date) {
-        return daoSession.getDayDao()
-                .queryBuilder()
-                .where(DayDao.Properties.UserId.eq(userId), DayDao.Properties.Date.eq(date))
-                .unique();
+    private Day getDayFromDb(String date, long weekId) {
+        return daoSession.getDayDao().queryBuilder()
+                .where(
+                        DayDao.Properties.WeekId.eq(weekId),
+                        DayDao.Properties.Date.eq(date)
+                ).unique();
     }
 
     private long updateDay(Day dbDayEntity, Day apiDayEntity, long weekId) {
@@ -121,7 +106,6 @@ public class AttendanceSync implements AttendanceSyncContract {
             return dbDayEntity.getId();
         }
 
-        apiDayEntity.setUserId(userId);
         apiDayEntity.setWeekId(weekId);
 
         return daoSession.getDayDao().insert(apiDayEntity);

app/src/main/java/io/github/wulkanowy/data/sync/ExamsSync.java

@@ -0,0 +1,135 @@
+package io.github.wulkanowy.data.sync;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.api.VulcanException;
+import io.github.wulkanowy.api.exams.ExamDay;
+import io.github.wulkanowy.data.db.dao.entities.DaoSession;
+import io.github.wulkanowy.data.db.dao.entities.Day;
+import io.github.wulkanowy.data.db.dao.entities.DayDao;
+import io.github.wulkanowy.data.db.dao.entities.Exam;
+import io.github.wulkanowy.data.db.dao.entities.ExamDao;
+import io.github.wulkanowy.data.db.dao.entities.Week;
+import io.github.wulkanowy.data.db.dao.entities.WeekDao;
+import io.github.wulkanowy.utils.DataObjectConverter;
+import timber.log.Timber;
+
+public class ExamsSync {
+
+    private final DaoSession daoSession;
+
+    private final Vulcan vulcan;
+
+    private long diaryId;
+
+    @Inject
+    ExamsSync(DaoSession daoSession, Vulcan vulcan) {
+        this.daoSession = daoSession;
+        this.vulcan = vulcan;
+    }
+
+    public void syncExams(long diaryId, String date) throws IOException, VulcanException {
+        this.diaryId = diaryId;
+
+        io.github.wulkanowy.api.generic.Week<ExamDay> weekApi = getWeekFromApi(date);
+        Week weekDb = getWeekFromDb(weekApi.getStartDayDate());
+
+        long weekId = updateWeekInDb(weekDb, weekApi);
+
+        List<Exam> examList = getPreparedExams(weekApi.getDays(), weekId);
+
+        daoSession.getExamDao().saveInTx(examList);
+
+        Timber.d("Exams synchronization complete (%s)", examList.size());
+    }
+
+    private Week getWeekFromDb(String date) {
+        return daoSession.getWeekDao().queryBuilder().where(
+                WeekDao.Properties.DiaryId.eq(diaryId),
+                WeekDao.Properties.StartDayDate.eq(date)
+        ).unique();
+    }
+
+    private io.github.wulkanowy.api.generic.Week<ExamDay> getWeekFromApi(String date)
+            throws VulcanException, IOException {
+        return vulcan.getExamsList().getWeek(date, true);
+    }
+
+    private Long updateWeekInDb(Week weekDb, io.github.wulkanowy.api.generic.Week weekApi) {
+        if (weekDb != null) {
+            weekDb.setExamsSynced(true);
+            weekDb.update();
+
+            return weekDb.getId();
+        }
+
+        Week weekApiEntity = DataObjectConverter.weekToWeekEntity(weekApi).setDiaryId(diaryId);
+        weekApiEntity.setExamsSynced(true);
+
+        return daoSession.getWeekDao().insert(weekApiEntity);
+    }
+
+    private Day getDayFromDb(String date, long weekId) {
+        return daoSession.getDayDao().queryBuilder().where(
+                DayDao.Properties.WeekId.eq(weekId),
+                DayDao.Properties.Date.eq(date)
+        ).unique();
+    }
+
+    private List<Exam> getPreparedExams(List<ExamDay> dayListFromApi,
+                                        long weekId) {
+        List<Exam> preparedExamList = new ArrayList<>();
+
+        for (ExamDay dayFromApi : dayListFromApi) {
+
+            Day dayDb = getDayFromDb(dayFromApi.getDate(), weekId);
+
+            Day dayApiEntity = DataObjectConverter.dayToDayEntity(dayFromApi);
+
+            long dayId = updateDayInDb(dayDb, dayApiEntity, weekId);
+
+            prepareExam(dayFromApi.getExamList(), preparedExamList, dayId);
+        }
+        return preparedExamList;
+    }
+
+    private long updateDayInDb(Day dayDb, Day dayApi, long weekId) {
+        dayApi.setWeekId(weekId);
+
+        if (null != dayDb) {
+            return dayDb.getId();
+        }
+        return daoSession.getDayDao().insert(dayApi);
+    }
+
+    private void prepareExam(List<io.github.wulkanowy.api.exams.Exam> examList,
+                             List<Exam> preparedExams, long dayId) {
+        List<Exam> examsApiEntity = DataObjectConverter.examsToExamsEntity(examList);
+
+        for (Exam examApi : examsApiEntity) {
+            Exam examDb = getExamFromDb(examApi, dayId);
+
+            examApi.setDayId(dayId);
+
+            if (examDb != null) {
+                examApi.setId(examDb.getId());
+            }
+            preparedExams.add(examApi);
+        }
+    }
+
+    private Exam getExamFromDb(Exam examApi, long dayId) {
+        return daoSession.getExamDao().queryBuilder()
+                .where(ExamDao.Properties.DayId.eq(dayId),
+                        ExamDao.Properties.EntryDate.eq(examApi.getEntryDate()),
+                        ExamDao.Properties.SubjectAndGroup.eq(examApi.getSubjectAndGroup()),
+                        ExamDao.Properties.Type.eq(examApi.getType()),
+                        ExamDao.Properties.Teacher.eq(examApi.getTeacher()))
+                .unique();
+    }
+}

app/src/main/java/io/github/wulkanowy/data/sync/GradeSync.java

@@ -0,0 +1,81 @@
+package io.github.wulkanowy.data.sync;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.api.VulcanException;
+import io.github.wulkanowy.data.db.dao.entities.DaoSession;
+import io.github.wulkanowy.data.db.dao.entities.Grade;
+import io.github.wulkanowy.data.db.dao.entities.Semester;
+import io.github.wulkanowy.data.db.dao.entities.SubjectDao;
+import io.github.wulkanowy.utils.DataObjectConverter;
+import io.github.wulkanowy.utils.EntitiesCompare;
+import timber.log.Timber;
+
+@Singleton
+public class GradeSync {
+
+    private final DaoSession daoSession;
+
+    private final Vulcan vulcan;
+
+    private long semesterId;
+
+    @Inject
+    GradeSync(DaoSession daoSession, Vulcan vulcan) {
+        this.daoSession = daoSession;
+        this.vulcan = vulcan;
+    }
+
+    public void sync(long semesterId) throws IOException, VulcanException {
+        this.semesterId = semesterId;
+
+        Semester semester = daoSession.getSemesterDao().load(semesterId);
+        resetSemesterRelations(semester);
+
+        List<Grade> lastList = getUpdatedList(getComparedList(semester));
+
+        daoSession.getGradeDao().deleteInTx(semester.getGradeList());
+        daoSession.getGradeDao().insertInTx(lastList);
+
+        Timber.d("Grades synchronization complete (%s)", lastList.size());
+    }
+
+    private void resetSemesterRelations(Semester semester) {
+        semester.resetSubjectList();
+        semester.resetGradeList();
+    }
+
+    private List<Grade> getUpdatedList(List<Grade> comparedList) {
+        List<Grade> updatedList = new ArrayList<>();
+
+        for (Grade grade : comparedList) {
+            grade.setSemesterId(semesterId);
+            grade.setSubjectId(getSubjectId(grade.getSubject()));
+            updatedList.add(grade);
+        }
+
+        return updatedList;
+    }
+
+    private List<Grade> getComparedList(Semester semester) throws IOException, VulcanException {
+        List<Grade> gradesFromNet = DataObjectConverter.gradesToGradeEntities(
+                vulcan.getGradesList().getAll(semester.getValue()), semesterId);
+
+        List<Grade> gradesFromDb = semester.getGradeList();
+
+        return EntitiesCompare.compareGradeList(gradesFromNet, gradesFromDb);
+    }
+
+    private Long getSubjectId(String subjectName) {
+        return daoSession.getSubjectDao().queryBuilder().where(
+                SubjectDao.Properties.Name.eq(subjectName),
+                SubjectDao.Properties.SemesterId.eq(semesterId)
+        ).build().uniqueOrThrow().getId();
+    }
+}

app/src/main/java/io/github/wulkanowy/data/sync/NotRegisteredUserException.java

@@ -0,0 +1,8 @@
+package io.github.wulkanowy.data.sync;
+
+public class NotRegisteredUserException extends RuntimeException {
+
+    public NotRegisteredUserException(String message) {
+        super(message);
+    }
+}

app/src/main/java/io/github/wulkanowy/data/sync/SubjectSync.java

@@ -0,0 +1,66 @@
+package io.github.wulkanowy.data.sync;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.api.VulcanException;
+import io.github.wulkanowy.data.db.dao.entities.DaoSession;
+import io.github.wulkanowy.data.db.dao.entities.Semester;
+import io.github.wulkanowy.data.db.dao.entities.Subject;
+import io.github.wulkanowy.utils.DataObjectConverter;
+import timber.log.Timber;
+
+@Singleton
+public class SubjectSync {
+
+    private final DaoSession daoSession;
+
+    private final Vulcan vulcan;
+
+    private long semesterId;
+
+    @Inject
+    SubjectSync(DaoSession daoSession, Vulcan vulcan) {
+        this.daoSession = daoSession;
+        this.vulcan = vulcan;
+    }
+
+    public void sync(long semesterId) throws VulcanException, IOException {
+        this.semesterId = semesterId;
+
+        Semester semester = daoSession.getSemesterDao().load(semesterId);
+
+        List<Subject> lastList = getUpdatedList(getSubjectsFromNet(semester));
+
+        daoSession.getSubjectDao().deleteInTx(getSubjectsFromDb());
+        daoSession.getSubjectDao().insertInTx(lastList);
+
+        Timber.d("Subjects synchronization complete (%s)", lastList.size());
+    }
+
+    private List<Subject> getSubjectsFromNet(Semester semester) throws VulcanException, IOException {
+        return DataObjectConverter.subjectsToSubjectEntities(
+                vulcan.getSubjectsList().getAll(semester.getValue()), semesterId);
+    }
+
+    private List<Subject> getSubjectsFromDb() {
+        Semester semester = daoSession.getSemesterDao().load(semesterId);
+        semester.resetSubjectList();
+        return semester.getSubjectList();
+    }
+
+    private List<Subject> getUpdatedList(List<Subject> subjectsFromNet) {
+        List<Subject> updatedList = new ArrayList<>();
+
+        for (Subject subject : subjectsFromNet) {
+            subject.setSemesterId(semesterId);
+            updatedList.add(subject);
+        }
+        return updatedList;
+    }
+}