Version 0.4.3

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

.circleci/config.yml

@@ -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

@@ -44,3 +44,7 @@ local.properties
 .Trashes
 ehthumbs.db
 Thumbs.db
+.idea/codeStyles/
+.idea/caches/
+./app/key.p12
+./app/upload-key.jks

README.md

@@ -4,9 +4,11 @@
 [![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/)
-[![Scrutinizer](https://img.shields.io/scrutinizer/g/wulkanowy/wulkanowy.svg)](https://scrutinizer-ci.com/g/wulkanowy/wulkanowy/?branch=master)
-[![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)
 

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

@@ -23,7 +23,7 @@ public class Client {
 
     private String symbol;
 
-    private Date lastSuccessRequest = null;
+    private Date lastSuccessRequest;
 
     private Cookies cookies = new Cookies();
 
@@ -44,7 +44,11 @@ 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];
         }
     }
@@ -54,13 +58,12 @@ public class Client {
             return;
         }
 
-        this.cookies = new Cookies();
         this.symbol = new Login(this).login(email, password, symbol);
     }
 
     private boolean isLoggedIn() {
         return getCookies().size() > 0 && lastSuccessRequest != null &&
-                29 > TimeUnit.MILLISECONDS.toMinutes(new Date().getTime() - lastSuccessRequest.getTime());
+                5 > TimeUnit.MILLISECONDS.toMinutes(new Date().getTime() - lastSuccessRequest.getTime());
 
     }
 
@@ -99,7 +102,7 @@ public class Client {
         return getPageByUrl(url, loginBefore, null);
     }
 
-    public Document getPageByUrl(String url, boolean loginBefore, Map<String, String> cookies) throws IOException, VulcanException {
+    public synchronized Document getPageByUrl(String url, boolean loginBefore, Map<String, String> cookies) throws IOException, VulcanException {
         if (loginBefore) {
             login();
         }
@@ -124,7 +127,7 @@ public class Client {
         return doc;
     }
 
-    public Document postPageByUrl(String url, String[][] params) throws IOException, VulcanException {
+    public synchronized Document postPageByUrl(String url, String[][] params) throws IOException, VulcanException {
         Connection connection = Jsoup.connect(getFilledUrl(url));
 
         for (String[] data : params) {
@@ -139,6 +142,8 @@ public class Client {
 
         this.cookies.addItems(response.cookies());
 
+        response.bufferUp(); // fixes cert parsing issues #109
+
         return checkForErrors(response.parse());
     }
 
@@ -190,8 +195,8 @@ public class Client {
             throw new NotLoggedInErrorException(singIn);
         }
 
-        if ("Błąd strony".equals(title)) {
-            throw new VulcanException("Nieznany błąd");
+        if (title.startsWith("Błąd")) {
+            throw new NotLoggedInErrorException(title + " " + doc.selectFirst("p, body"));
         }
 
         return doc;

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

@@ -4,8 +4,6 @@ public class Diary implements ParamItem {
 
     private String id = "";
 
-    private String studentId = "";
-
     private String name = "";
 
     private boolean current = false;
@@ -19,16 +17,6 @@ public class Diary implements ParamItem {
         return this;
     }
 
-    public String getStudentId() {
-        return studentId;
-    }
-
-    @Override
-    public Diary setStudentId(String studentId) {
-        this.studentId = studentId;
-        return this;
-    }
-
     public String getName() {
         return name;
     }

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

@@ -4,8 +4,6 @@ interface ParamItem {
 
     ParamItem setId(String id);
 
-    ParamItem setStudentId(String id);
-
     ParamItem setName(String name);
 
     ParamItem setCurrent(boolean isCurrent);

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

@@ -4,8 +4,6 @@ public class Semester implements ParamItem {
 
     private String id = "";
 
-    private String studentId = "";
-
     private String name = "";
 
     private boolean current = false;
@@ -19,16 +17,6 @@ public class Semester implements ParamItem {
         return this;
     }
 
-    public String getStudentId() {
-        return studentId;
-    }
-
-    @Override
-    public Semester setStudentId(String studentId) {
-        this.studentId = studentId;
-        return this;
-    }
-
     public String getName() {
         return name;
     }

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

@@ -17,15 +17,6 @@ public class Student implements ParamItem {
         return this;
     }
 
-    public String getStudentId() {
-        return getId();
-    }
-
-    @Override
-    public Student setStudentId(String studentId) {
-        return setId(studentId);
-    }
-
     public String getName() {
         return name;
     }

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

@@ -106,7 +106,11 @@ public class StudentAndParent implements SnP {
 
         Document doc = client.getPageByUrl(getBaseUrl() + url, true, cookies);
 
-        if ("Witryna ucznia i rodzica – Strona główna".equals(doc.select("title").first().text())) {
+        if (!doc.title().startsWith("Witryna ucznia i rodzica")) {
+            throw new VulcanException("Expected SnP page, got page with title: " + doc.title());
+        }
+
+        if (doc.title().endsWith("Strona główna")) {
             throw new VulcanException("Sesja została nieprawidłowo zainicjowana");
         }
 
@@ -140,8 +144,8 @@ public class StudentAndParent implements SnP {
 
         for (Element e : semesterOptions) {
             Semester semester = new Semester()
-                    .setId(e.text())
-                    .setName(e.attr("value"));
+                    .setId(e.attr("value"))
+                    .setName(e.text());
 
             if (isCurrent(e)) {
                 semester.setCurrent(true);
@@ -167,9 +171,6 @@ public class StudentAndParent implements SnP {
                 if (isCurrent(e)) {
                     item.setCurrent(true);
                 }
-                if (item instanceof Diary) {
-                    item.setStudentId(getStudentID());
-                }
 
                 list.add((T) item);
             } catch (Exception ex) {

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

@@ -2,7 +2,7 @@ package io.github.wulkanowy.api;
 
 public class VulcanException extends Exception {
 
-    protected VulcanException(String message) {
+    public VulcanException(String message) {
         super(message);
     }
 

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

@@ -63,7 +63,7 @@ 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

@@ -1,12 +1,17 @@
 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;
 
 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;
@@ -22,11 +27,11 @@ public class ExamsWeek {
         this.snp = snp;
     }
 
-    public Week<ExamDay> getCurrent() throws IOException, VulcanException {
+    public Week<ExamDay> getCurrent() throws IOException, VulcanException, ParseException {
         return getWeek("", true);
     }
 
-    public Week<ExamDay> getWeek(String tick, final boolean onlyNotEmpty) throws IOException, VulcanException {
+    public Week<ExamDay> getWeek(String tick, final boolean onlyNotEmpty) throws IOException, VulcanException, ParseException {
         Document examsPage = snp.getSnPPageDocument(EXAMS_PAGE_URL + tick);
         Elements examsDays = examsPage.select(".mainContainer > div:not(.navigation)");
 
@@ -41,7 +46,9 @@ 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 +58,24 @@ 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);
     }
+
+    private String getFormattedDate(String date) throws ParseException {
+        SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy", Locale.ROOT);
+        Date d = sdf.parse(date);
+        sdf.applyPattern("yyyy-MM-dd");
+        return sdf.format(d);
+    }
 }

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);
     }
@@ -44,20 +40,4 @@ public class Day {
     public void 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;
-    }
 }

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/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

@@ -14,7 +14,6 @@ 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;
 
@@ -42,28 +41,22 @@ public class GradesList {
         Document gradesPage = snp.getSnPPageDocument(getGradesPageUrl() + semester);
         Elements gradesRows = gradesPage.select(".ocenySzczegoly-table > tbody > tr");
 
-        if ("".equals(semester)) {
-            List<Semester> semesterList = snp.getSemesters(gradesPage);
-            Semester currentSemester = snp.getCurrent(semesterList);
-            semester = currentSemester.getName();
-        }
-
         for (Element row : gradesRows) {
             if ("Brak ocen".equals(row.select("td:nth-child(2)").text())) {
                 continue;
             }
 
-            grades.add(getGrade(row, semester));
+            grades.add(getGrade(row));
         }
 
         return grades;
     }
 
-    private Grade getGrade(Element row, String semester) throws ParseException {
+    private Grade getGrade(Element row) throws ParseException {
         String descriptions = row.select("td:nth-child(3)").text();
 
         String symbol = descriptions.split(", ")[0];
-        String description = descriptions.replaceFirst(symbol, "").replaceFirst(", ", "");
+        String description = descriptions.replaceFirst(Pattern.quote(symbol), "").replaceFirst(", ", "");
         String color = getColor(row.select("td:nth-child(2) span.ocenaCzastkowa").attr("style"));
         String date = formatDate(row.select("td:nth-child(5)").text());
 
@@ -75,8 +68,7 @@ public class GradesList {
                 .setDescription(description)
                 .setWeight(row.select("td:nth-child(4)").text())
                 .setDate(date)
-                .setTeacher(row.select("td:nth-child(6)").text())
-                .setSemester(semester);
+                .setTeacher(row.select("td:nth-child(6)").text());
     }
 
     private String getColor(String styleAttr) {

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

@@ -13,7 +13,7 @@ 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";
@@ -31,27 +31,60 @@ public class Login {
     }
 
     Document sendCredentials(String email, String password) throws IOException, VulcanException {
-        Document html = client.postPageByUrl(LOGIN_PAGE_URL, new String[][]{
+        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;
+        return nextDoc;
+    }
+
+    private Document sendCredentialsData(String[][] credentials, String nextUrl) throws IOException, VulcanException {
+        Element formFirst = client.getPageByUrl(nextUrl, false).selectFirst("#form1");
+
+        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 {
-        String certificate = doc.select("input[name=wresult]").val();
-
-        String symbol = findSymbol(defaultSymbol, certificate);
-        client.setSymbol(symbol);
+        client.setSymbol(findSymbol(defaultSymbol, doc.select("input[name=wresult]").val()));
 
         Document targetDoc = sendCertData(doc);
-        String title = targetDoc.select("title").text();
+        String title = targetDoc.title();
+
+        if ("Working...".equals(title)) { // on adfs login
+            title = sendCertData(targetDoc).title();
+        }
 
         if ("Logowanie".equals(title)) {
             throw new AccountPermissionException("No account access. Try another symbol");
@@ -61,7 +94,7 @@ public class Login {
             throw new LoginErrorException("Expected page title `UONET+`, got " + title);
         }
 
-        return symbol;
+        return client.getSymbol();
     }
 
     private Document sendCertData(Document doc) throws IOException, VulcanException {
@@ -74,7 +107,7 @@ public class Login {
         });
     }
 
-    private String findSymbol(String symbol, String certificate) {
+    private String findSymbol(String symbol, String certificate) throws AccountPermissionException {
         if ("Default".equals(symbol)) {
             return findSymbolInCertificate(certificate);
         }
@@ -82,15 +115,19 @@ public class Login {
         return symbol;
     }
 
-    String findSymbolInCertificate(String certificate) {
+    String findSymbolInCertificate(String certificate) throws AccountPermissionException {
         Elements instances = Jsoup
                 .parse(certificate.replaceAll(":", ""), "", Parser.xmlParser())
                 .select("[AttributeName=\"UserInstance\"] samlAttributeValue");
 
-        if (instances.isEmpty()) {
+        if (instances.isEmpty()) { // on adfs login
             return "";
         }
 
+        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/timetable/Timetable.java

@@ -14,7 +14,6 @@ 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;
 
@@ -28,25 +27,25 @@ public class Timetable {
         this.snp = snp;
     }
 
-    public Week<Day> getWeekTable() throws IOException, ParseException, VulcanException {
+    public Week<TimetableDay> getWeekTable() throws IOException, ParseException, VulcanException {
         return getWeekTable("");
     }
 
-    public Week<Day> getWeekTable(final String tick) throws IOException, ParseException, VulcanException {
+    public Week<TimetableDay> getWeekTable(final String tick) throws IOException, ParseException, VulcanException {
         Element table = snp.getSnPPageDocument(TIMETABLE_PAGE_URL + tick)
                 .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) throws ParseException {
+        List<TimetableDay> days = new ArrayList<>();
 
         for (int i = 2; i < 7; i++) {
             String[] dayHeaderCell = tableHeaderCells.get(i).html().split("<br>");
@@ -55,7 +54,7 @@ public class Timetable {
             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));
 
@@ -70,7 +69,7 @@ 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 +81,7 @@ 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 +98,14 @@ public class Timetable {
                 addLessonInfoFromElement(lesson, e.first());
                 break;
             case 2:
-                addLessonInfoFromElement(lesson, e.last());
+                Element span = e.last().select("span").first();
+                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));
@@ -165,7 +171,8 @@ 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 +183,15 @@ 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()));
         }
     }
 
@@ -210,7 +219,8 @@ public class Timetable {
 
         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/StudentAndParentTest.java

@@ -96,12 +96,12 @@ public class StudentAndParentTest {
 
         Assert.assertEquals(2, semesters.size());
 
-        Assert.assertEquals("1", semesters.get(0).getId());
-        Assert.assertEquals("1234", semesters.get(0).getName());
+        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).getName());
+        Assert.assertEquals("2", semesters.get(1).getName());
+        Assert.assertEquals("1235", semesters.get(1).getId());
         Assert.assertTrue(semesters.get(1).isCurrent());
     }
 
@@ -150,9 +150,7 @@ public class StudentAndParentTest {
         Assert.assertFalse(snp.getDiaries().get(1).isCurrent());
         Assert.assertFalse(snp.getDiaries().get(2).isCurrent());
 
-        Assert.assertEquals("100", snp.getDiaries().get(0).getStudentId());
-
         Assert.assertEquals("Jan Kowal", snp.getStudents().get(0).getName());
-        Assert.assertEquals("100", snp.getStudents().get(0).getStudentId());
+        Assert.assertEquals("100", snp.getStudents().get(0).getId());
     }
 }

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

@@ -19,7 +19,7 @@ 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
@@ -60,6 +60,7 @@ public class GradesListTest extends StudentAndParentTestCase {
         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
@@ -70,6 +71,7 @@ public class GradesListTest extends StudentAndParentTestCase {
         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
@@ -101,14 +103,4 @@ public class GradesListTest extends StudentAndParentTestCase {
         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

@@ -24,6 +24,7 @@ public class LoginTest {
 
         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;
     }
@@ -33,6 +34,10 @@ public class LoginTest {
         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"));
@@ -56,24 +61,31 @@ public class LoginTest {
         Login login = new Login(client);
 
         Assert.assertEquals(
-                getFixtureAsString("cert.xml").replaceAll("\\s+",""),
+                getFixtureAsString("cert-stock.xml").replaceAll("\\s+", ""),
                 login.sendCredentials("a@a", "passwd")
-                        .select("input[name=wresult]").attr("value")
-                        .replaceAll("\\s+","")
+                        .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(new Document(""), "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(getFixtureAsDocument("Logowanie-certyfikat.html"), "Default"));
@@ -81,31 +93,33 @@ public class LoginTest {
 
     @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(getFixtureAsDocument("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(getFixtureAsDocument("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/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
@@ -110,6 +110,7 @@ public class TimetableTest extends StudentAndParentTestCase {
         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 +123,7 @@ 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 +150,11 @@ 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("", holidays.getWeekTable().getDay(3).getLesson(3).getDescription());
     }
 
@@ -237,6 +243,8 @@ 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/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/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>

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:1.2.0'
     }
 }
 
@@ -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 '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 7
-        versionName "0.3.1"
+        versionCode 11
+        versionName "0.4.3"
         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"
@@ -61,11 +85,20 @@ android {
     }
 }
 
+play {
+    track = 'alpha'
+    uploadImages = true
+}
+
 greendao {
-    schemaVersion 23
+    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"
@@ -83,6 +116,7 @@ dependencies {
     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.crashlytics.sdk.android:crashlytics:$crashlyticsSdk@aar") {
         transitive = true

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

@@ -12,13 +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

@@ -12,7 +12,7 @@ public class DiaryTest extends AbstractDaoTestLongPk<DiaryDao, Diary> {
     protected Diary createEntity(Long key) {
         Diary entity = new Diary();
         entity.setId(key);
-        entity.setIsCurrent(false);
+        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

@@ -12,12 +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

@@ -10,8 +10,7 @@
 
     <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"
@@ -32,19 +31,40 @@
             android:name=".ui.login.LoginActivity"
             android:configChanges="orientation|screenSize"
             android:label="@string/title_activity_login"
+            android:theme="@style/WulkanowyTheme.LoginTheme"
             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"
+            android:theme="@style/WulkanowyTheme" />
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesMenuActivity"
+            android:theme="@style/WulkanowyTheme.LoginTheme" />
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesActivity"
+            android:theme="@style/WulkanowyTheme.LoginTheme" />
 
         <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

@@ -45,9 +45,9 @@ public class WulkanowyApp extends Application {
     }
 
     private void initializeUserSession() {
-        if (repository.getCurrentUserId() != 0) {
+        if (repository.getSharedRepo().isUserLoggedIn()) {
             try {
-                repository.initLastUser();
+                repository.getSyncRepo().initLastUser();
             } catch (Exception e) {
                 LogUtils.error("An error occurred when the application was started", e);
             }

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

@@ -1,184 +1,50 @@
 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 int getStartupTab() {
-        return sharedPref.getStartupTab();
+    public ResourcesContract getResRepo() {
+        return resources;
     }
 
     @Override
-    public int getServicesInterval() {
-        return sharedPref.getServicesInterval();
+    public DbContract getDbRepo() {
+        return database;
     }
 
     @Override
-    public boolean isServicesEnable() {
-        return sharedPref.isServicesEnable();
-    }
-
-    @Override
-    public boolean isNotifyEnable() {
-        return sharedPref.isNotifyEnable();
-    }
-
-    @Override
-    public boolean isMobileDisable() {
-        return sharedPref.isMobileDisable();
-    }
-
-    @Override
-    public String[] getSymbolsKeysArray() {
-        return resources.getSymbolsKeysArray();
-    }
-
-    @Override
-    public String[] getSymbolsValuesArray() {
-        return resources.getSymbolsValuesArray();
-    }
-
-    @Override
-    public String getErrorLoginMessage(Exception e) {
-        return resources.getErrorLoginMessage(e);
-    }
-
-    @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 SyncContract getSyncRepo() {
+        return synchronization;
     }
 }

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

@@ -1,45 +1,20 @@
 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();
 
-    int getStartupTab();
+    ResourcesContract getResRepo();
 
-    boolean isServicesEnable();
+    DbContract getDbRepo();
 
-    boolean isNotifyEnable();
-
-    int getServicesInterval();
-
-    boolean isMobileDisable();
-
-    void syncGrades() throws VulcanException, IOException, ParseException;
-
-    void syncSubjects() throws VulcanException, IOException, ParseException;
-
-    void syncAll() throws VulcanException, IOException, ParseException;
-
-    Account getCurrentUser();
-
-    Week getWeek(String date);
-
-    List<Grade> getNewGrades();
+    SyncContract getSyncRepo();
 }

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

@@ -0,0 +1,30 @@
+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.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();
+
+    long getCurrentDiaryId();
+
+    long getSemesterId(int name);
+
+    long getCurrentSemesterId();
+
+    int getCurrentSemesterName();
+}

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

@@ -17,6 +17,9 @@ import javax.inject.Singleton;
 import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.data.db.dao.entities.DaoMaster;
 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;
@@ -39,11 +42,9 @@ public class DbHelper extends DaoMaster.OpenHelper {
 
     @Override
     public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
-        Database database = new StandardDatabase(db);
-        DaoMaster.dropAllTables(database, true);
-        onCreate(database);
-        sharedPref.setCurrentUserId(0);
         LogUtils.info("Cleaning user data oldVersion=" + oldVersion + " newVersion=" + newVersion);
+        Database database = new StandardDatabase(db);
+        recreateDatabase(database);
     }
 
     @Override
@@ -59,17 +60,26 @@ public class DbHelper extends DaoMaster.OpenHelper {
                     LogUtils.info("Migration " + migration.getVersion() + " complete");
                 } catch (Exception e) {
                     e.printStackTrace();
-                    DaoMaster.dropAllTables(db, true);
-                    sharedPref.setCurrentUserId(0);
+                    recreateDatabase(db);
                     break;
                 }
             }
         }
     }
 
+    private void recreateDatabase(Database db) {
+        LogUtils.info("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>() {

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

@@ -0,0 +1,106 @@
+package io.github.wulkanowy.data.db.dao;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+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.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 long getCurrentSymbolId() {
+        return daoSession.getSymbolDao().queryBuilder().where(
+                SymbolDao.Properties.UserId.eq(sharedPref.getCurrentUserId())
+        ).unique().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();
+    }
+}

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

@@ -4,10 +4,9 @@ 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.JoinProperty;
 import org.greenrobot.greendao.annotation.Property;
 import org.greenrobot.greendao.annotation.ToMany;
+import org.greenrobot.greendao.annotation.Unique;
 
 import java.util.List;
 
@@ -20,38 +19,15 @@ public class Account {
     @Id(autoincrement = true)
     private Long id;
 
-    @Index(unique = true)
-    @Property(nameInDb = "REAL_ID")
-    private String realId;
-
-    @Property(nameInDb = "SYMBOL")
-    private String symbol;
-
-    @Property(nameInDb = "SCHOOL_ID")
-    private String schoolId;
-
-    @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;
 
-    @ToMany(joinProperties = {
-            @JoinProperty(name = "realId", referencedName = "studentId")
-    })
-    private List<Diary> diaryList;
-
     @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
@@ -65,14 +41,9 @@ public class Account {
     @Generated(hash = 335469827)
     private transient AccountDao myDao;
 
-    @Generated(hash = 727721142)
-    public Account(Long id, String realId, String symbol, String schoolId, String name,
-            String email, String password) {
+    @Generated(hash = 1104194311)
+    public Account(Long id, String email, String password) {
         this.id = id;
-        this.realId = realId;
-        this.symbol = symbol;
-        this.schoolId = schoolId;
-        this.name = name;
         this.email = email;
         this.password = password;
     }
@@ -82,34 +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 getRealId() {
-        return realId;
-    }
-
-    public Account setRealId(String realId) {
-        this.realId = realId;
-        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) {
@@ -118,7 +70,7 @@ public class Account {
     }
 
     public String getPassword() {
-        return password;
+        return this.password;
     }
 
     public Account setPassword(String password) {
@@ -126,180 +78,34 @@ public class Account {
         return this;
     }
 
-    public String getSymbol() {
-        return symbol;
-    }
-
-    public Account setSymbol(String symbol) {
-        this.symbol = symbol;
-        return this;
-    }
-
-    public String getSchoolId() {
-        return schoolId;
-    }
-
-    public Account setSchoolId(String schoolId) {
-        this.schoolId = schoolId;
-        return this;
-    }
-
-    public Account setDiaryList(List<Diary> diaryList) {
-        this.diaryList = diaryList;
-        return this;
-    }
-
-    public Account setSubjectList(List<Subject> subjectList) {
-        this.subjectList = subjectList;
-        return this;
-    }
-
-    public Account setGradeList(List<Grade> gradeList) {
-        this.gradeList = gradeList;
-        return this;
-    }
-
-    public Account setDayList(List<Day> dayList) {
-        this.dayList = dayList;
-        return this;
-    }
-
-    public DaoSession getDaoSession() {
-        return daoSession;
-    }
-
-    public Account setDaoSession(DaoSession daoSession) {
-        this.daoSession = daoSession;
-        return this;
-    }
-
-    public AccountDao getMyDao() {
-        return myDao;
-    }
-
-    public Account setMyDao(AccountDao myDao) {
-        this.myDao = myDao;
-        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 = 1472214466)
-    public List<Diary> getDiaryList() {
-        if (diaryList == 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");
             }
-            DiaryDao targetDao = daoSession.getDiaryDao();
-            List<Diary> diaryListNew = targetDao._queryAccount_DiaryList(realId);
+            SymbolDao targetDao = daoSession.getSymbolDao();
+            List<Symbol> symbolListNew = targetDao._queryAccount_SymbolList(id);
             synchronized (this) {
-                if (diaryList == null) {
-                    diaryList = diaryListNew;
+                if (symbolList == null) {
+                    symbolList = symbolListNew;
                 }
             }
         }
-        return diaryList;
+        return symbolList;
     }
 
     /**
      * 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;
-    }
-
-    /**
-     * 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) {
-            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);
-            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;
-    }
-
-    /**
-     * 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;
-    }
-
-    /**
-     * 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;
+    @Generated(hash = 1716801695)
+    public synchronized void resetSymbolList() {
+        symbolList = null;
     }
 
     /**

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

@@ -5,6 +5,9 @@ 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",
@@ -15,17 +18,20 @@ public class Diary {
     @Id(autoincrement = true)
     private Long id;
 
-    @Property(nameInDb = "STUDENT_ID")
-    private String studentId;
+    @Property(nameInDb = "student_id")
+    private Long studentId;
 
-    @Property(nameInDb = "NAME")
+    @Property(nameInDb = "current")
+    private boolean current;
+
+    @Property(nameInDb = "name")
     private String name;
 
-    @Property(nameInDb = "VALUE")
+    @Property(nameInDb = "value")
     private String value;
 
-    @Property(nameInDb = "IS_CURRENT")
-    private boolean isCurrent;
+    @ToMany(referencedJoinProperty = "diaryId")
+    private List<Semester> semesterList;
 
     /**
      * Used to resolve relations
@@ -39,14 +45,13 @@ public class Diary {
     @Generated(hash = 21166549)
     private transient DiaryDao myDao;
 
-    @Generated(hash = 459332202)
-    public Diary(Long id, String studentId, String name, String value,
-                 boolean isCurrent) {
+    @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;
-        this.isCurrent = isCurrent;
     }
 
     @Generated(hash = 112123061)
@@ -54,25 +59,24 @@ public class Diary {
     }
 
     public Long getId() {
-        return id;
+        return this.id;
     }
 
-    public Diary setId(Long id) {
+    public void setId(Long id) {
         this.id = id;
-        return this;
     }
 
-    public String getStudentId() {
-        return studentId;
+    public Long getStudentId() {
+        return this.studentId;
     }
 
-    public Diary setStudentId(String studentId) {
+    public Diary setStudentId(Long studentId) {
         this.studentId = studentId;
         return this;
     }
 
     public String getName() {
-        return name;
+        return this.name;
     }
 
     public Diary setName(String name) {
@@ -81,7 +85,7 @@ public class Diary {
     }
 
     public String getValue() {
-        return value;
+        return this.value;
     }
 
     public Diary setValue(String value) {
@@ -89,31 +93,43 @@ public class Diary {
         return this;
     }
 
-    public boolean getIsCurrent() {
-        return isCurrent;
+    public boolean getCurrent() {
+        return this.current;
     }
 
-    public Diary setIsCurrent(boolean current) {
-        isCurrent = current;
+    public Diary setCurrent(boolean current) {
+        this.current = current;
         return this;
     }
 
-    public DaoSession getDaoSession() {
-        return daoSession;
+    /**
+     * 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;
     }
 
-    public Diary setDaoSession(DaoSession daoSession) {
-        this.daoSession = daoSession;
-        return this;
-    }
-
-    public DiaryDao getMyDao() {
-        return myDao;
-    }
-
-    public Diary setMyDao(DiaryDao myDao) {
-        this.myDao = myDao;
-        return this;
+    /**
+     * 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;
     }
 
     /**

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

@@ -100,7 +100,7 @@ public class Migration23 implements DbHelper.Migration {
     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.getStudentId() + "\"," +
+                    "\"" + diary.getId() + "\"," +
                     "\"" + diary.getName() + "\"," +
                     "\"" + diary.getId() + "\"," +
                     "\"" + (diary.isCurrent() ? "1" : "0") + "\"" +

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

@@ -21,12 +21,12 @@ import io.github.wulkanowy.utils.LogUtils;
 import io.github.wulkanowy.utils.security.CryptoException;
 
 @Singleton
-public class AppResources implements ResourcesContract {
+public class ResourcesRepository implements ResourcesContract {
 
     private Resources resources;
 
     @Inject
-    AppResources(@ApplicationContext Context context) {
+    ResourcesRepository(@ApplicationContext Context context) {
         resources = context.getResources();
     }
 
@@ -52,7 +52,7 @@ 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();
         }
@@ -62,27 +62,27 @@ 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()) {
+        if (lesson.getAbsenceExcused()) {
             id = R.string.attendance_absence_excused;
         }
 
-        if (lesson.getIsAbsenceUnexcused()) {
+        if (lesson.getAbsenceUnexcused()) {
             id = R.string.attendance_absence_unexcused;
         }
 
-        if (lesson.getIsExemption()) {
+        if (lesson.getExemption()) {
             id = R.string.attendance_exemption;
         }
 
-        if (lesson.getIsExcusedLateness()) {
+        if (lesson.getExcusedLateness()) {
             id = R.string.attendance_excused_lateness;
         }
 
-        if (lesson.getIsUnexcusedLateness()) {
+        if (lesson.getUnexcusedLateness()) {
             id = R.string.attendance_unexcused_lateness;
         }
 

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

@@ -1,13 +1,26 @@
 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 getServicesInterval();
 
     boolean isMobileDisable();

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

@@ -1,5 +1,6 @@
 package io.github.wulkanowy.data.db.shared;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
@@ -12,16 +13,18 @@ import io.github.wulkanowy.di.annotations.SharedPreferencesInfo;
 import io.github.wulkanowy.ui.main.settings.SettingsFragment;
 
 @Singleton
-public class SharedPref implements SharedPrefContract {
+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
-    SharedPref(@ApplicationContext Context context, @SharedPreferencesInfo String sharedName) {
+    SharedPrefRepository(@ApplicationContext Context context, @SharedPreferencesInfo String sharedName) {
         appSharedPref = context.getSharedPreferences(sharedName, Context.MODE_PRIVATE);
         settingsSharedPref = PreferenceManager.getDefaultSharedPreferences(context);
     }
@@ -31,14 +34,40 @@ public class SharedPref implements SharedPrefContract {
         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, "2"));
+        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

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

@@ -0,0 +1,155 @@
+package io.github.wulkanowy.data.sync;
+
+import android.content.Context;
+
+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.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.di.annotations.ApplicationContext;
+import io.github.wulkanowy.utils.DataObjectConverter;
+import io.github.wulkanowy.utils.LogUtils;
+import io.github.wulkanowy.utils.security.CryptoException;
+import io.github.wulkanowy.utils.security.Scrambler;
+
+@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, @ApplicationContext 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 {
+
+        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 {
+        LogUtils.debug("Register account: " + email);
+        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 {
+        LogUtils.debug("Register symbol: " + vulcan.getSymbol());
+        Symbol symbol = new Symbol()
+                .setUserId(account.getId())
+                .setSchoolId(vulcan.getStudentAndParent().getSchoolID())
+                .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()
+        );
+        LogUtils.debug("Register students: " + 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());
+        LogUtils.debug("Register diaries: " + 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());
+        LogUtils.debug("Register semesters: " + 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");
+        }
+
+        LogUtils.debug("Initialization current user id=" + 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()
+        );
+    }
+}

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

@@ -1,4 +1,4 @@
-package io.github.wulkanowy.data.sync.attendance;
+package io.github.wulkanowy.data.sync;
 
 import java.io.IOException;
 import java.text.ParseException;
@@ -18,37 +18,27 @@ 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;
 
 @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);
-    }
-
-    @Override
-    public void syncAttendance(String date) throws IOException, ParseException, VulcanException {
-        this.userId = sharedPref.getCurrentUserId();
+    public void syncAttendance(long diaryId, String date) throws IOException, ParseException, VulcanException {
+        this.diaryId = diaryId;
 
         io.github.wulkanowy.api.generic.Week<io.github.wulkanowy.api.generic.Day> weekApi = getWeekFromApi(getNormalizedDate(date));
         Week weekDb = getWeekFromDb(weekApi.getStartDayDate());
@@ -72,22 +62,22 @@ public class AttendanceSync implements AttendanceSyncContract {
     }
 
     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 +87,7 @@ 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 +99,12 @@ 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 +112,6 @@ 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 +1,142 @@
+package io.github.wulkanowy.data.sync;
+
+import java.io.IOException;
+import java.text.ParseException;
+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 io.github.wulkanowy.utils.LogUtils;
+import io.github.wulkanowy.utils.TimeUtils;
+
+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,
+            ParseException {
+        this.diaryId = diaryId;
+
+        io.github.wulkanowy.api.generic.Week<ExamDay> weekApi = getWeekFromApi(getNormalizedDate(date));
+        Week weekDb = getWeekFromDb(weekApi.getStartDayDate());
+
+        long weekId = updateWeekInDb(weekDb, weekApi);
+
+        List<Exam> examList = getPreparedExams(weekApi.getDays(), weekId);
+
+        daoSession.getExamDao().saveInTx(examList);
+
+        LogUtils.debug("Synchronization exams (amount = " + 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, ParseException {
+        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 String getNormalizedDate(String date) throws ParseException {
+        return null != date ? String.valueOf(TimeUtils.getNetTicks(date)) : "";
+    }
+
+    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 +1,82 @@
+package io.github.wulkanowy.data.sync;
+
+import java.io.IOException;
+import java.text.ParseException;
+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 io.github.wulkanowy.utils.LogUtils;
+
+@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, ParseException {
+        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);
+
+        LogUtils.debug("Synchronization grades (amount = " + 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, ParseException {
+        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

@@ -1,7 +1,6 @@
-package io.github.wulkanowy.data.sync.subjects;
+package io.github.wulkanowy.data.sync;
 
 import java.io.IOException;
-import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -10,38 +9,33 @@ 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.DaoSession;
+import io.github.wulkanowy.data.db.dao.entities.Semester;
 import io.github.wulkanowy.data.db.dao.entities.Subject;
-import io.github.wulkanowy.data.db.shared.SharedPrefContract;
-import io.github.wulkanowy.data.sync.SyncContract;
 import io.github.wulkanowy.utils.DataObjectConverter;
 import io.github.wulkanowy.utils.LogUtils;
 
 @Singleton
-public class SubjectSync implements SyncContract {
+public class SubjectSync {
 
     private final DaoSession daoSession;
 
     private final Vulcan vulcan;
 
-    private final SharedPrefContract sharedPref;
-
-    private Long userId;
+    private long semesterId;
 
     @Inject
-    SubjectSync(DaoSession daoSession, SharedPrefContract sharedPref, Vulcan vulcan) {
+    SubjectSync(DaoSession daoSession, Vulcan vulcan) {
         this.daoSession = daoSession;
-        this.sharedPref = sharedPref;
         this.vulcan = vulcan;
     }
 
-    @Override
-    public void sync() throws VulcanException, IOException, ParseException {
+    public void sync(long semesterId) throws VulcanException, IOException {
+        this.semesterId = semesterId;
 
-        userId = sharedPref.getCurrentUserId();
+        Semester semester = daoSession.getSemesterDao().load(semesterId);
 
-        List<Subject> lastList = getUpdatedList(getSubjectsFromNet());
+        List<Subject> lastList = getUpdatedList(getSubjectsFromNet(semester));
 
         daoSession.getSubjectDao().deleteInTx(getSubjectsFromDb());
         daoSession.getSubjectDao().insertInTx(lastList);
@@ -49,21 +43,22 @@ public class SubjectSync implements SyncContract {
         LogUtils.debug("Synchronization subjects (amount = " + lastList.size() + ")");
     }
 
-    private List<Subject> getSubjectsFromNet() throws VulcanException, IOException {
-        return DataObjectConverter.subjectsToSubjectEntities(vulcan.getSubjectsList().getAll());
+    private List<Subject> getSubjectsFromNet(Semester semester) throws VulcanException, IOException {
+        return DataObjectConverter.subjectsToSubjectEntities(
+                vulcan.getSubjectsList().getAll(semester.getValue()), semesterId);
     }
 
     private List<Subject> getSubjectsFromDb() {
-        Account account = daoSession.getAccountDao().load(userId);
-        account.resetSubjectList();
-        return account.getSubjectList();
+        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.setUserId(userId);
+            subject.setSemesterId(semesterId);
             updatedList.add(subject);
         }
         return updatedList;

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

@@ -3,9 +3,38 @@ package io.github.wulkanowy.data.sync;
 import java.io.IOException;
 import java.text.ParseException;
 
-import io.github.wulkanowy.api.VulcanException;
+import javax.inject.Singleton;
 
+import io.github.wulkanowy.api.VulcanException;
+import io.github.wulkanowy.utils.security.CryptoException;
+
+@Singleton
 public interface SyncContract {
 
-    void sync() throws VulcanException, IOException, ParseException;
+    void registerUser(String email, String password, String symbol) throws VulcanException,
+            IOException, CryptoException;
+
+    void initLastUser() throws IOException, CryptoException;
+
+    void syncGrades(int semesterName) throws VulcanException, IOException, ParseException;
+
+    void syncGrades() throws VulcanException, IOException, ParseException;
+
+    void syncSubjects(int semesterName) throws VulcanException, IOException;
+
+    void syncSubjects() throws VulcanException, IOException;
+
+    void syncAttendance() throws ParseException, IOException, VulcanException;
+
+    void syncAttendance(long diaryId, String date) throws ParseException, IOException, VulcanException;
+
+    void syncTimetable() throws VulcanException, IOException, ParseException;
+
+    void syncTimetable(long diaryId, String date) throws VulcanException, IOException, ParseException;
+
+    void syncExams() throws VulcanException, IOException, ParseException;
+
+    void syncExams(long diaryId, String date) throws VulcanException, IOException, ParseException;
+
+    void syncAll() throws VulcanException, IOException, ParseException;
 }

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

@@ -0,0 +1,124 @@
+package io.github.wulkanowy.data.sync;
+
+import java.io.IOException;
+import java.text.ParseException;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import io.github.wulkanowy.api.VulcanException;
+import io.github.wulkanowy.data.db.dao.DbContract;
+import io.github.wulkanowy.utils.security.CryptoException;
+
+@Singleton
+public class SyncRepository implements SyncContract {
+
+    private final GradeSync gradeSync;
+
+    private final SubjectSync subjectSync;
+
+    private final AttendanceSync attendanceSync;
+
+    private final TimetableSync timetableSync;
+
+    private final AccountSync accountSync;
+
+    private final ExamsSync examsSync;
+
+    private final DbContract database;
+
+    @Inject
+    SyncRepository(GradeSync gradeSync, SubjectSync subjectSync, AttendanceSync attendanceSync,
+                   TimetableSync timetableSync, AccountSync accountSync, ExamsSync examsSync,
+                   DbContract database) {
+        this.gradeSync = gradeSync;
+        this.subjectSync = subjectSync;
+        this.attendanceSync = attendanceSync;
+        this.timetableSync = timetableSync;
+        this.accountSync = accountSync;
+        this.examsSync = examsSync;
+        this.database = database;
+    }
+
+    @Override
+    public void registerUser(String email, String password, String symbol) throws VulcanException,
+            IOException, CryptoException {
+        accountSync.registerUser(email, password, symbol);
+    }
+
+    @Override
+    public void initLastUser() throws IOException, CryptoException {
+        accountSync.initLastUser();
+    }
+
+    @Override
+    public void syncGrades(int semesterName) throws VulcanException, IOException, ParseException {
+        gradeSync.sync(semesterName);
+    }
+
+    @Override
+    public void syncGrades() throws VulcanException, IOException, ParseException {
+        gradeSync.sync(database.getCurrentSemesterId());
+    }
+
+    @Override
+    public void syncSubjects(int semesterName) throws VulcanException, IOException {
+        subjectSync.sync(semesterName);
+    }
+
+    @Override
+    public void syncSubjects() throws VulcanException, IOException {
+        subjectSync.sync(database.getCurrentSemesterId());
+    }
+
+    @Override
+    public void syncAttendance() throws ParseException, IOException, VulcanException {
+        attendanceSync.syncAttendance(database.getCurrentDiaryId(), null);
+    }
+
+    @Override
+    public void syncAttendance(long diaryId, String date) throws ParseException, IOException, VulcanException {
+        if (diaryId != 0) {
+            attendanceSync.syncAttendance(diaryId, date);
+        } else {
+            attendanceSync.syncAttendance(database.getCurrentDiaryId(), date);
+        }
+    }
+
+    @Override
+    public void syncTimetable() throws VulcanException, IOException, ParseException {
+        timetableSync.syncTimetable(database.getCurrentDiaryId(), null);
+    }
+
+    @Override
+    public void syncTimetable(long diaryId, String date) throws VulcanException, IOException, ParseException {
+        if (diaryId != 0) {
+            timetableSync.syncTimetable(diaryId, date);
+        } else {
+            timetableSync.syncTimetable(database.getCurrentDiaryId(), date);
+        }
+    }
+
+    @Override
+    public void syncExams() throws VulcanException, IOException, ParseException {
+        examsSync.syncExams(database.getCurrentDiaryId(), null);
+    }
+
+    @Override
+    public void syncExams(long diaryId, String date) throws VulcanException, IOException, ParseException {
+        if (diaryId != 0) {
+            examsSync.syncExams(diaryId, date);
+        } else {
+            examsSync.syncExams(database.getCurrentDiaryId(), date);
+        }
+    }
+
+    @Override
+    public void syncAll() throws VulcanException, IOException, ParseException {
+        syncSubjects();
+        syncGrades();
+        syncAttendance();
+        syncTimetable();
+        syncExams();
+    }
+}

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

@@ -1,4 +1,6 @@
-package io.github.wulkanowy.data.sync.timetable;
+package io.github.wulkanowy.data.sync;
+
+import org.apache.commons.collections4.CollectionUtils;
 
 import java.io.IOException;
 import java.text.ParseException;
@@ -18,39 +20,29 @@ import io.github.wulkanowy.data.db.dao.entities.TimetableLesson;
 import io.github.wulkanowy.data.db.dao.entities.TimetableLessonDao;
 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;
 
 @Singleton
-public class TimetableSync implements TimetableSyncContract {
+public class TimetableSync {
 
     private final DaoSession daoSession;
 
-    private final SharedPrefContract sharedPref;
-
     private final Vulcan vulcan;
 
-    private long userId;
+    private long diaryId;
 
     @Inject
-    TimetableSync(DaoSession daoSession, SharedPrefContract sharedPref, Vulcan vulcan) {
+    TimetableSync(DaoSession daoSession, Vulcan vulcan) {
         this.daoSession = daoSession;
-        this.sharedPref = sharedPref;
         this.vulcan = vulcan;
     }
 
-    @Override
-    public void syncTimetable() throws IOException, ParseException, VulcanException {
-        syncTimetable(null);
-    }
+    public void syncTimetable(long diaryId, String date) throws IOException, ParseException, VulcanException {
+        this.diaryId = diaryId;
 
-    @Override
-    public void syncTimetable(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.timetable.TimetableDay> weekApi = getWeekFromApi(getNormalizedDate(date));
         Week weekDb = getWeekFromDb(weekApi.getStartDayDate());
 
         long weekId = updateWeekInDb(weekDb, weekApi);
@@ -66,40 +58,40 @@ public class TimetableSync implements TimetableSyncContract {
         return null != date ? String.valueOf(TimeUtils.getNetTicks(date)) : "";
     }
 
-    private io.github.wulkanowy.api.generic.Week<io.github.wulkanowy.api.generic.Day> getWeekFromApi(String date)
-            throws IOException, VulcanException, ParseException {
+    private io.github.wulkanowy.api.generic.Week<io.github.wulkanowy.api.timetable.TimetableDay> getWeekFromApi(String date)
+            throws IOException, ParseException, VulcanException {
         return vulcan.getTimetable().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 dbEntity, io.github.wulkanowy.api.generic.Week fromApi) {
         if (dbEntity != null) {
-            dbEntity.setIsTimetableSynced(true);
+            dbEntity.setTimetableSynced(true);
             dbEntity.update();
 
             return dbEntity.getId();
         }
 
-        Week apiEntity = DataObjectConverter.weekToWeekEntity(fromApi).setUserId(userId);
-        apiEntity.setIsTimetableSynced(true);
+        Week apiEntity = DataObjectConverter.weekToWeekEntity(fromApi).setDiaryId(diaryId);
+        apiEntity.setTimetableSynced(true);
 
         return daoSession.getWeekDao().insert(apiEntity);
     }
 
-    private List<TimetableLesson> updateDays(List<io.github.wulkanowy.api.generic.Day> dayListFromApi, long weekId) {
+    private List<TimetableLesson> updateDays(List<io.github.wulkanowy.api.timetable.TimetableDay> dayListFromApi, long weekId) {
         List<TimetableLesson> updatedLessonList = new ArrayList<>();
 
-        for (io.github.wulkanowy.api.generic.Day dayFromApi : dayListFromApi) {
+        for (io.github.wulkanowy.api.timetable.TimetableDay dayFromApi : dayListFromApi) {
 
-            Day dbDayEntity = getDayFromDb(dayFromApi.getDate());
+            Day dbDayEntity = getDayFromDb(dayFromApi.getDate(), weekId);
 
-            Day apiDayEntity = DataObjectConverter.dayToDayEntity(dayFromApi);
+            Day apiDayEntity = DataObjectConverter.timetableDayToDayEntity(dayFromApi);
 
             long dayId = updateDay(dbDayEntity, apiDayEntity, weekId);
 
@@ -109,15 +101,14 @@ public class TimetableSync implements TimetableSyncContract {
         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 dayFromDb, Day apiDayEntity, long weekId) {
-        apiDayEntity.setUserId(userId);
         apiDayEntity.setWeekId(weekId);
 
         if (null != dayFromDb) {
@@ -136,6 +127,16 @@ public class TimetableSync implements TimetableSyncContract {
         List<TimetableLesson> lessonsFromApiEntities = DataObjectConverter
                 .lessonsToTimetableLessonsEntities(lessons);
 
+        List<TimetableLesson> lessonsFromDbEntities = getLessonsFromDb(dayId);
+
+        if (!lessonsFromDbEntities.isEmpty()) {
+            List<TimetableLesson> lessonToRemove = new ArrayList<>(CollectionUtils.removeAll(lessonsFromDbEntities, lessonsFromApiEntities));
+
+            for (TimetableLesson timetableLesson : lessonToRemove) {
+                daoSession.getTimetableLessonDao().delete(timetableLesson);
+            }
+        }
+
         for (TimetableLesson apiLessonEntity : lessonsFromApiEntities) {
             TimetableLesson lessonFromDb = getLessonFromDb(apiLessonEntity, dayId);
 
@@ -159,4 +160,8 @@ public class TimetableSync implements TimetableSyncContract {
                         TimetableLessonDao.Properties.EndTime.eq(apiEntity.getEndTime()))
                 .unique();
     }
+
+    private List<TimetableLesson> getLessonsFromDb(long dayId) {
+        return daoSession.getDayDao().load(dayId).getTimetableLessons();
+    }
 }

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

@@ -1,91 +0,0 @@
-package io.github.wulkanowy.data.sync.account;
-
-import android.content.Context;
-
-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.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.shared.SharedPrefContract;
-import io.github.wulkanowy.di.annotations.ApplicationContext;
-import io.github.wulkanowy.utils.DataObjectConverter;
-import io.github.wulkanowy.utils.LogUtils;
-import io.github.wulkanowy.utils.security.CryptoException;
-import io.github.wulkanowy.utils.security.Scrambler;
-
-@Singleton
-public class AccountSync implements AccountSyncContract {
-
-    private final DaoSession daoSession;
-
-    private final SharedPrefContract sharedPref;
-
-    private final Vulcan vulcan;
-
-    private final Context context;
-
-    @Inject
-    AccountSync(DaoSession daoSession, SharedPrefContract sharedPref,
-                Vulcan vulcan, @ApplicationContext Context context) {
-        this.daoSession = daoSession;
-        this.sharedPref = sharedPref;
-        this.vulcan = vulcan;
-        this.context = context;
-    }
-
-    @Override
-    public void registerUser(String email, String password, String symbol)
-            throws VulcanException, IOException, CryptoException {
-
-        LogUtils.debug("Register new user email=" + email);
-
-        vulcan.setCredentials(email, password, symbol, null, null, null);
-
-        Account account = new Account()
-                .setName(vulcan.getBasicInformation().getPersonalData().getFirstAndLastName())
-                .setEmail(email)
-                .setPassword(Scrambler.encrypt(email, password, context))
-                .setSymbol(vulcan.getSymbol())
-                .setSchoolId(vulcan.getStudentAndParent().getSchoolID())
-                .setRealId(vulcan.getStudentAndParent().getStudentID());
-
-        List<Diary> diaryList = DataObjectConverter.diariesToDiaryEntities(
-                vulcan.getStudentAndParent().getDiaries());
-
-        daoSession.getAccountDao().insert(account);
-        daoSession.getDiaryDao().insertInTx(diaryList);
-
-        sharedPref.setCurrentUserId(account.getId());
-    }
-
-    @Override
-    public void initLastUser() throws IOException, CryptoException {
-
-        long userId = sharedPref.getCurrentUserId();
-
-        if (userId == 0) {
-            throw new IOException("Can't find saved user");
-        }
-
-        LogUtils.debug("Initialization current user id=" + userId);
-
-        Account account = daoSession.getAccountDao().load(userId);
-
-        vulcan.setCredentials(account.getEmail(),
-                Scrambler.decrypt(account.getEmail(), account.getPassword()),
-                account.getSymbol(),
-                account.getSchoolId(),
-                account.getRealId(),
-                daoSession.getDiaryDao().queryBuilder()
-                        .where(DiaryDao.Properties.IsCurrent.eq(true)).unique().getValue()
-        );
-    }
-}

app/src/main/java/io/github/wulkanowy/data/sync/account/AccountSyncContract.java

@@ -1,16 +0,0 @@
-package io.github.wulkanowy.data.sync.account;
-
-import java.io.IOException;
-
-import io.github.wulkanowy.api.VulcanException;
-import io.github.wulkanowy.utils.security.CryptoException;
-
-public interface AccountSyncContract {
-
-    void registerUser(String email, String password, String symbol)
-            throws VulcanException, IOException,
-            CryptoException;
-
-    void initLastUser() throws VulcanException, IOException,
-            CryptoException;
-}

app/src/main/java/io/github/wulkanowy/data/sync/attendance/AttendanceSyncContract.java

@@ -1,13 +0,0 @@
-package io.github.wulkanowy.data.sync.attendance;
-
-import java.io.IOException;
-import java.text.ParseException;
-
-import io.github.wulkanowy.api.VulcanException;
-
-public interface AttendanceSyncContract {
-
-    void syncAttendance(String date) throws IOException, ParseException, VulcanException;
-
-    void syncAttendance() throws IOException, ParseException, VulcanException;
-}

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

@@ -1,91 +0,0 @@
-package io.github.wulkanowy.data.sync.grades;
-
-import java.io.IOException;
-import java.text.ParseException;
-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.Account;
-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.SubjectDao;
-import io.github.wulkanowy.data.db.shared.SharedPrefContract;
-import io.github.wulkanowy.data.sync.SyncContract;
-import io.github.wulkanowy.utils.DataObjectConverter;
-import io.github.wulkanowy.utils.EntitiesCompare;
-import io.github.wulkanowy.utils.LogUtils;
-
-@Singleton
-public class GradeSync implements SyncContract {
-
-    private final DaoSession daoSession;
-
-    private final Vulcan vulcan;
-
-    private final SharedPrefContract sharedPref;
-
-    private Long userId;
-
-    @Inject
-    GradeSync(DaoSession daoSession, SharedPrefContract sharedPref, Vulcan vulcan) {
-        this.daoSession = daoSession;
-        this.sharedPref = sharedPref;
-        this.vulcan = vulcan;
-    }
-
-    @Override
-    public void sync() throws IOException, VulcanException, ParseException {
-
-        userId = sharedPref.getCurrentUserId();
-
-        Account account = daoSession.getAccountDao().load(userId);
-        resetAccountRelations(account);
-
-        List<Grade> lastList = getUpdatedList(getComparedList(account));
-
-        daoSession.getGradeDao().deleteInTx(account.getGradeList());
-        daoSession.getGradeDao().insertInTx(lastList);
-
-        LogUtils.debug("Synchronization grades (amount = " + lastList.size() + ")");
-    }
-
-    private void resetAccountRelations(Account account) {
-        account.resetSubjectList();
-        account.resetGradeList();
-    }
-
-    private List<Grade> getUpdatedList(List<Grade> comparedList) {
-        List<Grade> updatedList = new ArrayList<>();
-
-        for (Grade grade : comparedList) {
-            grade.setUserId(userId);
-            grade.setSubjectId(getSubjectId(grade.getSubject()));
-            updatedList.add(grade);
-        }
-        return updatedList;
-    }
-
-    private List<Grade> getComparedList(Account account) throws IOException, VulcanException,
-            ParseException {
-        List<Grade> gradesFromNet = DataObjectConverter
-                .gradesToGradeEntities(vulcan.getGradesList().getAll());
-
-        List<Grade> gradesFromDb = account.getGradeList();
-
-        return EntitiesCompare.compareGradeList(gradesFromNet, gradesFromDb);
-    }
-
-    private Long getSubjectId(String subjectName) {
-        return daoSession.getSubjectDao().queryBuilder()
-                .where(SubjectDao.Properties.Name.eq(subjectName),
-                        SubjectDao.Properties.UserId.eq(userId))
-                .build()
-                .uniqueOrThrow()
-                .getId();
-    }
-}

app/src/main/java/io/github/wulkanowy/data/sync/timetable/TimetableSyncContract.java

@@ -1,13 +0,0 @@
-package io.github.wulkanowy.data.sync.timetable;
-
-import java.io.IOException;
-import java.text.ParseException;
-
-import io.github.wulkanowy.api.VulcanException;
-
-public interface TimetableSyncContract {
-
-    void syncTimetable(String date) throws VulcanException, IOException, ParseException;
-
-    void syncTimetable() throws VulcanException, IOException, ParseException;
-}

app/src/main/java/io/github/wulkanowy/di/annotations/SyncGrades.java

@@ -1,11 +0,0 @@
-package io.github.wulkanowy.di.annotations;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-import javax.inject.Qualifier;
-
-@Qualifier
-@Retention(RetentionPolicy.RUNTIME)
-public @interface SyncGrades {
-}

app/src/main/java/io/github/wulkanowy/di/annotations/SyncSubjects.java

@@ -1,11 +0,0 @@
-package io.github.wulkanowy.di.annotations;
-
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-import javax.inject.Qualifier;
-
-@Qualifier
-@Retention(RetentionPolicy.RUNTIME)
-public @interface SyncSubjects {
-}

app/src/main/java/io/github/wulkanowy/di/component/ApplicationComponent.java

@@ -9,7 +9,9 @@ import io.github.wulkanowy.WulkanowyApp;
 import io.github.wulkanowy.data.RepositoryContract;
 import io.github.wulkanowy.di.annotations.ApplicationContext;
 import io.github.wulkanowy.di.modules.ApplicationModule;
-import io.github.wulkanowy.services.SyncJob;
+import io.github.wulkanowy.services.jobs.SyncJob;
+import io.github.wulkanowy.ui.widgets.TimetableWidgetFactory;
+import io.github.wulkanowy.ui.widgets.TimetableWidgetProvider;
 
 @Singleton
 @Component(modules = ApplicationModule.class)
@@ -23,4 +25,8 @@ public interface ApplicationComponent {
     void inject(WulkanowyApp wulkanowyApp);
 
     void inject(SyncJob syncJob);
+
+    void inject(TimetableWidgetFactory timetableWidgetFactory);
+
+    void inject(TimetableWidgetProvider timetableWidgetProvider);
 }

app/src/main/java/io/github/wulkanowy/di/component/FragmentComponent.java

@@ -5,7 +5,8 @@ import io.github.wulkanowy.di.annotations.PerFragment;
 import io.github.wulkanowy.di.modules.FragmentModule;
 import io.github.wulkanowy.ui.main.attendance.AttendanceFragment;
 import io.github.wulkanowy.ui.main.attendance.AttendanceTabFragment;
-import io.github.wulkanowy.ui.main.dashboard.DashboardFragment;
+import io.github.wulkanowy.ui.main.exams.ExamsFragment;
+import io.github.wulkanowy.ui.main.exams.ExamsTabFragment;
 import io.github.wulkanowy.ui.main.grades.GradesFragment;
 import io.github.wulkanowy.ui.main.timetable.TimetableFragment;
 import io.github.wulkanowy.ui.main.timetable.TimetableTabFragment;
@@ -20,7 +21,9 @@ public interface FragmentComponent {
 
     void inject(AttendanceTabFragment attendanceTabFragment);
 
-    void inject(DashboardFragment dashboardFragment);
+    void inject(ExamsFragment examsFragment);
+
+    void inject(ExamsTabFragment examsTabFragment);
 
     void inject(TimetableFragment timetableFragment);
 

app/src/main/java/io/github/wulkanowy/di/modules/ActivityModule.java

@@ -8,10 +8,10 @@ import dagger.Module;
 import dagger.Provides;
 import io.github.wulkanowy.di.annotations.ActivityContext;
 import io.github.wulkanowy.di.annotations.PerActivity;
+import io.github.wulkanowy.ui.base.BasePagerAdapter;
 import io.github.wulkanowy.ui.login.LoginContract;
 import io.github.wulkanowy.ui.login.LoginPresenter;
 import io.github.wulkanowy.ui.main.MainContract;
-import io.github.wulkanowy.ui.main.MainPagerAdapter;
 import io.github.wulkanowy.ui.main.MainPresenter;
 import io.github.wulkanowy.ui.splash.SplashContract;
 import io.github.wulkanowy.ui.splash.SplashPresenter;
@@ -58,7 +58,7 @@ public class ActivityModule {
     }
 
     @Provides
-    MainPagerAdapter provideMainPagerAdapter() {
-        return new MainPagerAdapter(activity.getSupportFragmentManager());
+    BasePagerAdapter provideMainPagerAdapter() {
+        return new BasePagerAdapter(activity.getSupportFragmentManager());
     }
 }

app/src/main/java/io/github/wulkanowy/di/modules/ApplicationModule.java

@@ -13,27 +13,20 @@ import dagger.Provides;
 import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.data.Repository;
 import io.github.wulkanowy.data.RepositoryContract;
+import io.github.wulkanowy.data.db.dao.DbContract;
 import io.github.wulkanowy.data.db.dao.DbHelper;
+import io.github.wulkanowy.data.db.dao.DbRepository;
 import io.github.wulkanowy.data.db.dao.entities.DaoMaster;
 import io.github.wulkanowy.data.db.dao.entities.DaoSession;
-import io.github.wulkanowy.data.db.resources.AppResources;
 import io.github.wulkanowy.data.db.resources.ResourcesContract;
-import io.github.wulkanowy.data.db.shared.SharedPref;
+import io.github.wulkanowy.data.db.resources.ResourcesRepository;
 import io.github.wulkanowy.data.db.shared.SharedPrefContract;
+import io.github.wulkanowy.data.db.shared.SharedPrefRepository;
 import io.github.wulkanowy.data.sync.SyncContract;
-import io.github.wulkanowy.data.sync.account.AccountSync;
-import io.github.wulkanowy.data.sync.account.AccountSyncContract;
-import io.github.wulkanowy.data.sync.attendance.AttendanceSync;
-import io.github.wulkanowy.data.sync.attendance.AttendanceSyncContract;
-import io.github.wulkanowy.data.sync.grades.GradeSync;
-import io.github.wulkanowy.data.sync.subjects.SubjectSync;
-import io.github.wulkanowy.data.sync.timetable.TimetableSync;
-import io.github.wulkanowy.data.sync.timetable.TimetableSyncContract;
+import io.github.wulkanowy.data.sync.SyncRepository;
 import io.github.wulkanowy.di.annotations.ApplicationContext;
 import io.github.wulkanowy.di.annotations.DatabaseInfo;
 import io.github.wulkanowy.di.annotations.SharedPreferencesInfo;
-import io.github.wulkanowy.di.annotations.SyncGrades;
-import io.github.wulkanowy.di.annotations.SyncSubjects;
 import io.github.wulkanowy.utils.AppConstant;
 
 @Module
@@ -88,46 +81,27 @@ public class ApplicationModule {
 
     @Singleton
     @Provides
-    SharedPrefContract provideSharedPref(SharedPref sharedPref) {
-        return sharedPref;
+    SharedPrefContract provideSharedPref(SharedPrefRepository sharedPrefRepository) {
+        return sharedPrefRepository;
     }
 
     @Singleton
     @Provides
-    ResourcesContract provideAppResources(AppResources appResources) {
-        return appResources;
+    ResourcesContract provideAppResources(ResourcesRepository resourcesRepository) {
+        return resourcesRepository;
+    }
+
+
+    @Singleton
+    @Provides
+    DbContract provideDatabase(DbRepository dbRepository) {
+        return dbRepository;
     }
 
     @Singleton
     @Provides
-    AccountSyncContract provideLoginSync(AccountSync accountSync) {
-        return accountSync;
-    }
-
-    @SyncGrades
-    @Singleton
-    @Provides
-    SyncContract provideGradesSync(GradeSync gradeSync) {
-        return gradeSync;
-    }
-
-    @SyncSubjects
-    @Singleton
-    @Provides
-    SyncContract provideSubjectSync(SubjectSync subjectSync) {
-        return subjectSync;
-    }
-
-    @Singleton
-    @Provides
-    TimetableSyncContract provideTimetableSync(TimetableSync timetableSync) {
-        return timetableSync;
-    }
-
-    @Singleton
-    @Provides
-    AttendanceSyncContract provideAttendanceSync(AttendanceSync attendanceSync) {
-        return attendanceSync;
+    SyncContract provideSync(SyncRepository syncRepository) {
+        return syncRepository;
     }
 
     @Provides

app/src/main/java/io/github/wulkanowy/di/modules/FragmentModule.java

@@ -6,20 +6,22 @@ import dagger.Module;
 import dagger.Provides;
 import eu.davidea.flexibleadapter.FlexibleAdapter;
 import io.github.wulkanowy.di.annotations.PerFragment;
+import io.github.wulkanowy.ui.base.BasePagerAdapter;
 import io.github.wulkanowy.ui.main.attendance.AttendanceContract;
 import io.github.wulkanowy.ui.main.attendance.AttendanceHeaderItem;
-import io.github.wulkanowy.ui.main.attendance.AttendancePagerAdapter;
 import io.github.wulkanowy.ui.main.attendance.AttendancePresenter;
 import io.github.wulkanowy.ui.main.attendance.AttendanceTabContract;
 import io.github.wulkanowy.ui.main.attendance.AttendanceTabPresenter;
-import io.github.wulkanowy.ui.main.dashboard.DashboardContract;
-import io.github.wulkanowy.ui.main.dashboard.DashboardPresenter;
+import io.github.wulkanowy.ui.main.exams.ExamsContract;
+import io.github.wulkanowy.ui.main.exams.ExamsPresenter;
+import io.github.wulkanowy.ui.main.exams.ExamsSubItem;
+import io.github.wulkanowy.ui.main.exams.ExamsTabContract;
+import io.github.wulkanowy.ui.main.exams.ExamsTabPresenter;
 import io.github.wulkanowy.ui.main.grades.GradeHeaderItem;
 import io.github.wulkanowy.ui.main.grades.GradesContract;
 import io.github.wulkanowy.ui.main.grades.GradesPresenter;
 import io.github.wulkanowy.ui.main.timetable.TimetableContract;
 import io.github.wulkanowy.ui.main.timetable.TimetableHeaderItem;
-import io.github.wulkanowy.ui.main.timetable.TimetablePagerAdapter;
 import io.github.wulkanowy.ui.main.timetable.TimetablePresenter;
 import io.github.wulkanowy.ui.main.timetable.TimetableTabContract;
 import io.github.wulkanowy.ui.main.timetable.TimetableTabPresenter;
@@ -47,8 +49,8 @@ public class FragmentModule {
 
     @PerFragment
     @Provides
-    DashboardContract.Presenter provideDashboardPresenter(DashboardPresenter dashboardPresenter) {
-        return dashboardPresenter;
+    ExamsContract.Presenter provideDashboardPresenter(ExamsPresenter examsPresenter) {
+        return examsPresenter;
     }
 
     @PerFragment
@@ -58,8 +60,8 @@ public class FragmentModule {
     }
 
     @Provides
-    AttendancePagerAdapter provideAttendancePagerAdapter() {
-        return new AttendancePagerAdapter(fragment.getChildFragmentManager());
+    BasePagerAdapter provideBasePagerAdapter() {
+        return new BasePagerAdapter(fragment.getChildFragmentManager());
     }
 
     @Provides
@@ -67,6 +69,21 @@ public class FragmentModule {
         return new FlexibleAdapter<>(null);
     }
 
+    @Provides
+    FlexibleAdapter<TimetableHeaderItem> provideTimetableTabAdapter() {
+        return new FlexibleAdapter<>(null);
+    }
+
+    @Provides
+    FlexibleAdapter<GradeHeaderItem> provideGradesAdapter() {
+        return new FlexibleAdapter<>(null);
+    }
+
+    @Provides
+    FlexibleAdapter<ExamsSubItem> provideExamAdapter() {
+        return new FlexibleAdapter<>(null);
+    }
+
     @PerFragment
     @Provides
     TimetableContract.Presenter provideTimetablePresenter(TimetablePresenter timetablePresenter) {
@@ -80,17 +97,7 @@ public class FragmentModule {
     }
 
     @Provides
-    TimetablePagerAdapter provideTimetablePagerAdapter() {
-        return new TimetablePagerAdapter(fragment.getChildFragmentManager());
-    }
-
-    @Provides
-    FlexibleAdapter<TimetableHeaderItem> provideTimetableTabAdapter() {
-        return new FlexibleAdapter<>(null);
-    }
-
-    @Provides
-    FlexibleAdapter<GradeHeaderItem> provideGradesAdapter() {
-        return new FlexibleAdapter<>(null);
+    ExamsTabContract.Presenter provideExamsTabPresenter(ExamsTabPresenter examsTabPresenter) {
+        return examsTabPresenter;
     }
 }

app/src/main/java/io/github/wulkanowy/services/jobs/SyncJob.java

@@ -1,4 +1,4 @@
-package io.github.wulkanowy.services;
+package io.github.wulkanowy.services.jobs;
 
 import android.app.PendingIntent;
 import android.content.Context;
@@ -24,13 +24,13 @@ import io.github.wulkanowy.R;
 import io.github.wulkanowy.WulkanowyApp;
 import io.github.wulkanowy.data.RepositoryContract;
 import io.github.wulkanowy.data.db.dao.entities.Grade;
+import io.github.wulkanowy.data.sync.NotRegisteredUserException;
+import io.github.wulkanowy.services.notifies.GradeNotify;
 import io.github.wulkanowy.ui.main.MainActivity;
 import io.github.wulkanowy.utils.LogUtils;
 
 public class SyncJob extends SimpleJobService {
 
-    public static final String EXTRA_INTENT_KEY = "cardId";
-
     public static final String JOB_TAG = "SyncJob";
 
     private List<Grade> gradeList = new ArrayList<>();
@@ -66,18 +66,21 @@ public class SyncJob extends SimpleJobService {
     @Override
     public int onRunJob(JobParameters job) {
         try {
-            repository.initLastUser();
-            repository.syncAll();
+            repository.getSyncRepo().initLastUser();
+            repository.getSyncRepo().syncAll();
 
-            gradeList = repository.getNewGrades();
+            gradeList = repository.getDbRepo().getNewGrades(repository.getDbRepo().getCurrentSemesterName());
 
-            if (!gradeList.isEmpty() && repository.isNotifyEnable()) {
+            if (!gradeList.isEmpty() && repository.getSharedRepo().isNotifyEnable()) {
                 showNotification();
             }
             return JobService.RESULT_SUCCESS;
+        } catch (NotRegisteredUserException e) {
+            logError(e);
+            stop(getApplicationContext());
+            return JobService.RESULT_FAIL_NORETRY;
         } catch (Exception e) {
-            Crashlytics.logException(e);
-            LogUtils.error("During background synchronization an error occurred", e);
+            logError(e);
             return JobService.RESULT_FAIL_RETRY;
         }
     }
@@ -94,8 +97,9 @@ public class SyncJob extends SimpleJobService {
                 .setPriority(NotificationCompat.PRIORITY_HIGH)
                 .setColor(getResources().getColor(R.color.colorPrimary))
                 .setContentIntent(PendingIntent.getActivity(getApplicationContext(), 0,
-                        MainActivity.getStartIntent(getApplicationContext()).putExtra(EXTRA_INTENT_KEY, 0)
-                        , 0
+                        MainActivity.getStartIntent(getApplicationContext())
+                                .putExtra(MainActivity.EXTRA_CARD_ID_KEY, 0)
+                        , PendingIntent.FLAG_UPDATE_CURRENT
                 ))
                 .build());
     }
@@ -116,4 +120,9 @@ public class SyncJob extends SimpleJobService {
                     gradeList.size(), gradeList.size());
         }
     }
+
+    private void logError(Exception e) {
+        Crashlytics.logException(e);
+        LogUtils.error("During background synchronization an error occurred", e);
+    }
 }

app/src/main/java/io/github/wulkanowy/services/notifies/GradeNotify.java

@@ -1,4 +1,4 @@
-package io.github.wulkanowy.services;
+package io.github.wulkanowy.services.notifies;
 
 import android.annotation.TargetApi;
 import android.app.Notification;
@@ -8,11 +8,11 @@ import android.content.Context;
 
 import io.github.wulkanowy.R;
 
-class GradeNotify extends NotificationService {
+public class GradeNotify extends NotificationService {
 
     private static final String CHANNEL_ID = "Grade_Notify";
 
-    GradeNotify(Context context) {
+    public GradeNotify(Context context) {
         super(context);
     }
 

app/src/main/java/io/github/wulkanowy/services/notifies/NotificationService.java

@@ -1,4 +1,4 @@
-package io.github.wulkanowy.services;
+package io.github.wulkanowy.services.notifies;
 
 
 import android.annotation.TargetApi;
@@ -21,11 +21,11 @@ public class NotificationService {
         this.context = context;
     }
 
-    void notify(Notification notification) {
+    public void notify(Notification notification) {
         getManager().notify(new Random().nextInt(1000), notification);
     }
 
-    NotificationCompat.Builder notificationBuilder() {
+    public NotificationCompat.Builder notificationBuilder() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             createChannel();
         }

app/src/main/java/io/github/wulkanowy/services/widgets/TimetableWidgetServices.java

@@ -0,0 +1,14 @@
+package io.github.wulkanowy.services.widgets;
+
+import android.content.Intent;
+import android.widget.RemoteViewsService;
+
+import io.github.wulkanowy.ui.widgets.TimetableWidgetFactory;
+
+public class TimetableWidgetServices extends RemoteViewsService {
+
+    @Override
+    public RemoteViewsFactory onGetViewFactory(Intent intent) {
+        return new TimetableWidgetFactory(getApplicationContext());
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/base/BasePagerAdapter.java

@@ -0,0 +1,47 @@
+package io.github.wulkanowy.ui.base;
+
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class BasePagerAdapter extends FragmentStatePagerAdapter {
+
+    private List<Fragment> fragmentList = new ArrayList<>();
+
+    private List<String> titleList = new ArrayList<>();
+
+    public BasePagerAdapter(FragmentManager fragmentManager) {
+        super(fragmentManager);
+    }
+
+    public void addFragment(@NonNull Fragment fragment, @NonNull String title) {
+        fragmentList.add(fragment);
+        titleList.add(title);
+    }
+
+    public void addFragment(@NonNull Fragment fragment) {
+        fragmentList.add(fragment);
+    }
+
+    @Override
+    public Fragment getItem(int position) {
+        return fragmentList.get(position);
+    }
+
+    @Override
+    public int getCount() {
+        return fragmentList.size();
+    }
+
+    @Override
+    public CharSequence getPageTitle(int position) {
+        if (!titleList.isEmpty()) {
+            return titleList.get(position);
+        }
+        return null;
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/login/LoginPresenter.java

@@ -64,10 +64,10 @@ public class LoginPresenter extends BasePresenter<LoginContract.View>
     public void onDoInBackground(int stepNumber) throws Exception {
         switch (stepNumber) {
             case 1:
-                getRepository().registerUser(email, password, symbol);
+                getRepository().getSyncRepo().registerUser(email, password, symbol);
                 break;
             case 2:
-                getRepository().syncAll();
+                getRepository().getSyncRepo().syncAll();
                 break;
         }
     }
@@ -93,7 +93,7 @@ public class LoginPresenter extends BasePresenter<LoginContract.View>
             getView().setErrorSymbolRequired();
             getView().showSoftInput();
         } else {
-            getView().onError(getRepository().getErrorLoginMessage(exception));
+            getView().onError(getRepository().getResRepo().getErrorLoginMessage(exception));
         }
 
         getView().showActionBar(true);
@@ -121,8 +121,8 @@ public class LoginPresenter extends BasePresenter<LoginContract.View>
             return AppConstant.DEFAULT_SYMBOL;
         }
 
-        String[] keys = getRepository().getSymbolsKeysArray();
-        String[] values = getRepository().getSymbolsValuesArray();
+        String[] keys = getRepository().getResRepo().getSymbolsKeysArray();
+        String[] values = getRepository().getResRepo().getSymbolsValuesArray();
         LinkedHashMap<String, String> map = new LinkedHashMap<>();
 
         for (int i = 0; i < Math.min(keys.length, values.length); ++i) {

app/src/main/java/io/github/wulkanowy/ui/main/MainActivity.java

@@ -5,6 +5,7 @@ import android.content.Intent;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.support.v7.app.ActionBar;
+import android.support.v7.widget.Toolbar;
 import android.view.View;
 
 import com.aurelhubert.ahbottomnavigation.AHBottomNavigation;
@@ -16,10 +17,11 @@ import javax.inject.Inject;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import io.github.wulkanowy.R;
-import io.github.wulkanowy.services.SyncJob;
+import io.github.wulkanowy.services.jobs.SyncJob;
 import io.github.wulkanowy.ui.base.BaseActivity;
+import io.github.wulkanowy.ui.base.BasePagerAdapter;
 import io.github.wulkanowy.ui.main.attendance.AttendanceFragment;
-import io.github.wulkanowy.ui.main.dashboard.DashboardFragment;
+import io.github.wulkanowy.ui.main.exams.ExamsFragment;
 import io.github.wulkanowy.ui.main.grades.GradesFragment;
 import io.github.wulkanowy.ui.main.settings.SettingsFragment;
 import io.github.wulkanowy.ui.main.timetable.TimetableFragment;
@@ -27,6 +29,8 @@ import io.github.wulkanowy.ui.main.timetable.TimetableFragment;
 public class MainActivity extends BaseActivity implements MainContract.View,
         AHBottomNavigation.OnTabSelectedListener, OnFragmentIsReadyListener {
 
+    public static final String EXTRA_CARD_ID_KEY = "cardId";
+
     @BindView(R.id.main_activity_nav)
     AHBottomNavigation bottomNavigation;
 
@@ -37,7 +41,7 @@ public class MainActivity extends BaseActivity implements MainContract.View,
     View progressBar;
 
     @Inject
-    MainPagerAdapter pagerAdapter;
+    BasePagerAdapter pagerAdapter;
 
     @Inject
     MainContract.Presenter presenter;
@@ -50,11 +54,12 @@ public class MainActivity extends BaseActivity implements MainContract.View,
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
 
         getActivityComponent().inject(this);
         setButterKnife(ButterKnife.bind(this));
 
-        presenter.onStart(this, getIntent().getIntExtra(SyncJob.EXTRA_INTENT_KEY, -1));
+        presenter.onStart(this, getIntent().getIntExtra(EXTRA_CARD_ID_KEY, -1));
     }
 
     @Override
@@ -104,8 +109,8 @@ public class MainActivity extends BaseActivity implements MainContract.View,
         bottomNavigation.addItem(new AHBottomNavigationItem(getString(R.string.attendance_text),
                 R.drawable.ic_menu_attendance_24dp));
 
-        bottomNavigation.addItem(new AHBottomNavigationItem(getString(R.string.dashboard_text),
-                R.drawable.ic_menu_dashboard_24dp));
+        bottomNavigation.addItem(new AHBottomNavigationItem(getString(R.string.exams_text),
+                R.drawable.ic_menu_exams_24dp));
 
         bottomNavigation.addItem(new AHBottomNavigationItem(getString(R.string.timetable_text),
                 R.drawable.ic_menu_timetable_24dp));
@@ -126,7 +131,7 @@ public class MainActivity extends BaseActivity implements MainContract.View,
     public void initiationViewPager(int tabPosition) {
         pagerAdapter.addFragment(new GradesFragment());
         pagerAdapter.addFragment(new AttendanceFragment());
-        pagerAdapter.addFragment(new DashboardFragment());
+        pagerAdapter.addFragment(new ExamsFragment());
         pagerAdapter.addFragment(new TimetableFragment());
         pagerAdapter.addFragment(new SettingsFragment());
 
@@ -136,6 +141,11 @@ public class MainActivity extends BaseActivity implements MainContract.View,
         viewPager.setCurrentItem(tabPosition, false);
     }
 
+    @Override
+    public void startSyncService(int interval, boolean useOnlyWifi) {
+        SyncJob.start(getApplicationContext(), interval, useOnlyWifi);
+    }
+
     @Override
     protected void onDestroy() {
         super.onDestroy();

app/src/main/java/io/github/wulkanowy/ui/main/MainContract.java

@@ -18,6 +18,8 @@ public interface MainContract {
         void initiationViewPager(int tabPosition);
 
         void initiationBottomNav(int tabPosition);
+
+        void startSyncService(int interval, boolean useOnlyWifi);
     }
 
     @PerActivity

app/src/main/java/io/github/wulkanowy/ui/main/MainPagerAdapter.java

@@ -1,31 +0,0 @@
-package io.github.wulkanowy.ui.main;
-
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentStatePagerAdapter;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class MainPagerAdapter extends FragmentStatePagerAdapter {
-
-    private List<Fragment> fragmentList = new ArrayList<>();
-
-    public MainPagerAdapter(FragmentManager fragmentManager) {
-        super(fragmentManager);
-    }
-
-    void addFragment(Fragment fragment) {
-        fragmentList.add(fragment);
-    }
-
-    @Override
-    public Fragment getItem(int position) {
-        return fragmentList.get(position);
-    }
-
-    @Override
-    public int getCount() {
-        return fragmentList.size();
-    }
-}

app/src/main/java/io/github/wulkanowy/ui/main/MainPresenter.java

@@ -27,11 +27,16 @@ public class MainPresenter extends BasePresenter<MainContract.View>
         if (tabPositionIntent != -1) {
             tabPosition = tabPositionIntent;
         } else {
-            tabPosition = getRepository().getStartupTab();
+            tabPosition = getRepository().getSharedRepo().getStartupTab();
         }
 
         getView().initiationBottomNav(tabPosition);
         getView().initiationViewPager(tabPosition);
+
+        if (getRepository().getSharedRepo().isServicesEnable()) {
+            getView().startSyncService(getRepository().getSharedRepo().getServicesInterval(),
+                    getRepository().getSharedRepo().isMobileDisable());
+        }
     }
 
     @Override