Merge branch 'release/0.10.0'

0.9.4

.circleci/config.yml

@@ -7,7 +7,7 @@ references:
 
   container_config: &container_config
     docker:
-      - image: circleci/android:api-28
+      - image: circleci/android@sha256:5cdc8626cc6f13efe5ed982cdcdb432b0472f8740fed8743a6461e025ad6cdfc
     working_directory: *workspace_root
     environment:
       environment:
@@ -35,7 +35,7 @@ jobs:
           command: ./gradlew dependencies --no-daemon --stacktrace --console=plain -PdisablePreDex || true
       - run:
           name: Initial build
-          command: ./gradlew build -x test -x lint -x fabricGenerateResourcesRelease -x packageRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
+          command: ./gradlew build -x test -x lint -x fabricGenerateResourcesFdroidRelease -x fabricGenerateResourcesPlayRelease -x packageRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
       - run:
           name: Run FOSSA
           command: fossa --no-ansi || true
@@ -56,7 +56,7 @@ jobs:
           <<: *general_cache_key
       - run:
           name: Run lint
-          command: ./gradlew lint -x fabricGenerateResourcesRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
+          command: ./gradlew lint -x fabricGenerateResourcesFdroidRelease -x fabricGenerateResourcesPlayRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
       - store_artifacts:
           path: ./app/build/reports/
           destination: lint_reports/app/
@@ -75,7 +75,7 @@ jobs:
           <<: *general_cache_key
       - run:
           name: Run app tests
-          command: ./gradlew :app:test :app:jacocoTestReport -x fabricGenerateResourcesRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
+          command: ./gradlew :app:test :app:jacocoTestReport -x fabricGenerateResourcesFdroidRelease -x fabricGenerateResourcesPlayRelease --no-daemon --stacktrace --console=plain -PdisablePreDex
       - run:
           name: Upload unit code coverage to codecov
           command: bash <(curl -s https://codecov.io/bash) -F app
@@ -93,6 +93,9 @@ jobs:
     <<: *container_config
     steps:
       - *attach_workspace
+      - run:
+          name: Accept licenses
+          command: yes | sdkmanager --licenses && yes | sdkmanager --update
       - run:
           name: Setup emulator
           command: sdkmanager "system-images;android-19;default;armeabi-v7a" && echo "no" | avdmanager create avd -n test -k "system-images;android-19;default;armeabi-v7a"
@@ -113,7 +116,7 @@ jobs:
             adb shell input keyevent 82
       - run:
           name: Run instrumented tests
-          command: ./gradlew clean createDebugCoverageReport jacocoTestReport --no-daemon --stacktrace --console=plain -PdisablePreDex
+          command: ./gradlew clean createPlayDebugCoverageReport jacocoTestReport --no-daemon --stacktrace --console=plain -PdisablePreDex
       - run:
           name: Collect logs from emulator
           command: adb logcat -d > ./app/build/reports/logcat_emulator.txt
@@ -159,7 +162,7 @@ jobs:
             openssl aes-256-cbc -d -in ./app/upload-key-encrypted.jks -k $ENCRYPT_KEY >> ./app/upload-key.jks
       - run:
           name: Publish release
-          command: ./gradlew publish --no-daemon --stacktrace --console=plain -PenableCrashlytics -PdisablePreDex
+          command: ./gradlew publishPlayRelease --no-daemon --stacktrace --console=plain -PenableCrashlytics -PdisablePreDex
 
 workflows:
   version: 2

.gitignore

@@ -1,39 +1,90 @@
-/captures
-.externalNativeBuild
-
-## https://gist.github.com/iainconnor/8605514
+# Created by https://www.gitignore.io
 
 # Built application files
-/build
-/*/build/
+*.apk
+*.ap_
+*.aab
 
-# Crashlytics configuations
-com_crashlytics_export_strings.xml
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
 
 # Local configuration file (sdk path, etc)
 local.properties
 
-# Gradle generated files
-.gradle/
+# Proguard folder generated by Eclipse
+proguard/
 
-# Signing files
-.signing/
+# Log Files
+*.log
 
-# User-specific configurations
-.idea/copyright/profiles_settings.xml
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ configurations
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+.idea/caches
+.idea/modules.xml
+.idea/navEditor.xml
+.idea/caches/
 .idea/libraries/
-.idea/inspectionProfiles/
+.idea/shelf/
 .idea/.name
 .idea/compiler.xml
+.idea/copyright/profiles_settings.xml
 .idea/encodings.xml
 .idea/misc.xml
-.idea/modules.xml
 .idea/scopes/scope_settings.xml
-.idea/tasks.xml
 .idea/vcs.xml
-.idea/workspace.xml
-.idea/caches/
-*.iml
+.idea/jsLibraryMappings.xml
+.idea/datasources.xml
+.idea/dataSources.ids
+.idea/sqlDataSources.xml
+.idea/dynamic.xml
+.idea/uiDesigner.xml
+.idea/runConfigurations.xml
+
+# Keystore files
+*.jks
+*.keystore
+*.p12
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+lint/reports/
+
+### Android Patch ###
+gen-external-apklibs
+output.json
 
 # OS-specific files
 .DS_Store
@@ -43,8 +94,20 @@ local.properties
 .Trashes
 ehthumbs.db
 Thumbs.db
-.idea/caches/
-app/key.p12
-app/upload-key.jks
-*.log
-.idea/assetWizardSettings.xml
+
+# Legacy Eclipse project files
+.classpath
+.project
+.cproject
+.settings/
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.war
+*.ear
+
+### AndroidStudio Patch ###
+
+!/gradle/wrapper/gradle-wrapper.jar

.gitlab-ci.yml

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

.idea/codeStyles/Project.xml

@@ -1,9 +1,6 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
     <option name="LINE_SEPARATOR" value="&#10;" />
-    <AndroidXmlCodeStyleSettings>
-      <option name="USE_CUSTOM_SETTINGS" value="true" />
-    </AndroidXmlCodeStyleSettings>
     <JetCodeStyleSettings>
       <option name="PACKAGES_TO_USE_STAR_IMPORTS">
         <value>
@@ -21,13 +18,10 @@
       <option name="CONTINUATION_INDENT_IN_ELVIS" value="false" />
       <option name="WRAP_ELVIS_EXPRESSIONS" value="0" />
     </JetCodeStyleSettings>
-    <XML>
-      <option name="XML_KEEP_LINE_BREAKS" value="false" />
-      <option name="XML_ALIGN_ATTRIBUTES" value="false" />
-      <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
-    </XML>
+    <MarkdownNavigatorCodeStyleSettings>
+      <option name="RIGHT_MARGIN" value="72" />
+    </MarkdownNavigatorCodeStyleSettings>
     <codeStyleSettings language="XML">
-      <option name="FORCE_REARRANGE_MODE" value="1" />
       <indentOptions>
         <option name="CONTINUATION_INDENT_SIZE" value="4" />
       </indentOptions>
@@ -38,6 +32,7 @@
               <match>
                 <AND>
                   <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>^$</XML_NAMESPACE>
                 </AND>
               </match>
@@ -48,6 +43,7 @@
               <match>
                 <AND>
                   <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>^$</XML_NAMESPACE>
                 </AND>
               </match>
@@ -59,6 +55,7 @@
               <match>
                 <AND>
                   <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
                 </AND>
               </match>
@@ -69,6 +66,7 @@
               <match>
                 <AND>
                   <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
                 </AND>
               </match>
@@ -79,6 +77,7 @@
               <match>
                 <AND>
                   <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>^$</XML_NAMESPACE>
                 </AND>
               </match>
@@ -89,6 +88,7 @@
               <match>
                 <AND>
                   <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>^$</XML_NAMESPACE>
                 </AND>
               </match>
@@ -99,6 +99,7 @@
               <match>
                 <AND>
                   <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>^$</XML_NAMESPACE>
                 </AND>
               </match>
@@ -110,6 +111,7 @@
               <match>
                 <AND>
                   <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
                 </AND>
               </match>
@@ -121,6 +123,7 @@
               <match>
                 <AND>
                   <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
                   <XML_NAMESPACE>.*</XML_NAMESPACE>
                 </AND>
               </match>
@@ -138,7 +141,6 @@
       <option name="METHOD_PARAMETERS_LPAREN_ON_NEXT_LINE" value="true" />
       <option name="METHOD_PARAMETERS_RPAREN_ON_NEXT_LINE" value="true" />
       <option name="EXTENDS_LIST_WRAP" value="1" />
-      <option name="METHOD_CALL_CHAIN_WRAP" value="1" />
       <indentOptions>
         <option name="CONTINUATION_INDENT_SIZE" value="4" />
       </indentOptions>

.idea/gradle.xml

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>

.idea/runConfigurations.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>

.travis.yml

@@ -11,10 +11,10 @@ cache:
     - $HOME/.gradle/caches/
     - $HOME/.gradle/wrapper/
 
-#branches:
-#  only:
-#    - master
-#    - 0.8.x
+branches:
+  only:
+    - develop
+    - 0.10.0
 
 android:
  licenses:
@@ -48,20 +48,20 @@ before_script:
 script:
   - ./gradlew dependencies --stacktrace --daemon
   - fossa --no-ansi || true
-  - ./gradlew lint -x fabricGenerateResourcesRelease --stacktrace --daemon
-  - ./gradlew test -x fabricGenerateResourcesRelease --stacktrace --daemon
-  - ./gradlew createDebugCoverageReport --stacktrace --daemon
+  #- ./gradlew lintPlayRelease -x fabricGenerateResourcesPlayRelease --stacktrace --daemon
+  - ./gradlew testPlayDebugUnitTest -x fabricGenerateResourcesPlay --stacktrace --daemon
+  - ./gradlew createPlayDebugCoverageReport --stacktrace --daemon
   - ./gradlew jacocoTestReport --stacktrace --daemon
   - if [ -z ${SONAR_HOST+x} ]; then echo "sonar scan skipped"; else
       git fetch --unshallow;
-      ./gradlew sonarqube -x test -x lint -x fabricGenerateResourcesRelease -Dsonar.host.url=$SONAR_HOST -Dsonar.organization=$SONAR_ORG -Dsonar.login=$SONAR_KEY -Dsonar.branch.name=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH} --stacktrace --daemon;
+      ./gradlew sonarqube -x test -x lint -x fabricGenerateResourcesPlayRelease -x fabricGenerateResourcesFdroidRelease -Dsonar.host.url=$SONAR_HOST -Dsonar.organization=$SONAR_ORG -Dsonar.login=$SONAR_KEY -Dsonar.branch.name=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH} --stacktrace --daemon;
     fi
   - |
     if [ $TRAVIS_TAG ]; then
       gpg --yes --batch --passphrase=$SERVICES_ENCRYPT_KEY ./app/src/release/google-services.json.gpg;
       gpg --yes --batch --passphrase=$ENCRYPT_KEY ./app/key.p12.gpg;
       gpg --yes --batch --passphrase=$ENCRYPT_KEY ./app/upload-key.jks.gpg;
-      ./gradlew publish -PenableCrashlytics --stacktrace;
+      ./gradlew publishPlayRelease -PenableCrashlytics --stacktrace;
     fi
 
 after_success:

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2017 wulkanowy
+   Copyright 2019 Wulkanowy
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.en.md

@@ -0,0 +1,61 @@
+[Polska wersja README](README.md)
+
+# Wulkanowy
+[![Travis](https://img.shields.io/travis/com/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://travis-ci.com/wulkanowy/wulkanowy)
+[![Codecov](https://img.shields.io/codecov/c/github/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://codecov.io/gh/wulkanowy/wulkanowy)
+[![Discord](https://img.shields.io/discord/390889354199040011.svg?style=flat-square)](https://discord.gg/vccAQBr)
+[![F-Droid](https://img.shields.io/f-droid/v/io.github.wulkanowy.svg)](https://f-droid.org/packages/io.github.wulkanowy/)
+[![Last release](https://img.shields.io/github/release/wulkanowy/wulkanowy.svg?logo=github)](https://github.com/wulkanowy/wulkanowy/releases)
+
+Unofficial android VULCAN UONET+ register client for student and parent
+
+## Features
+
+* logging in using the email and password
+* functions from the register website:
+    * grades
+    * grade statistics
+    * attendance
+    * percentage of attendance
+    * exams
+    * timetable
+    * completed lessons
+    * messages
+    * homework
+    * notes
+    * lucky number
+* calculation of the average
+* notifications, e.g. about a new grade
+* dark and black (AMOLED) theme
+* offline mode
+* no ads
+
+## Download
+
+You can download the current beta from the Google Play or Fdroid store
+
+[<img src="https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png"
+      alt="Get it on Google Play"
+      height="80">](https://play.google.com/store/apps/details?id=io.github.wulkanowy)
+[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png"
+    alt="Get it on Fdroid"
+    height="80">](https://f-droid.org/packages/io.github.wulkanowy/)
+    
+You can also download a [development version](https://wulkanowy.github.io/#download) that includes new features prepared for the next release
+
+## Built With
+
+
+* [Wulkanowy API](https://github.com/wulkanowy/api)
+* [RxJava 2](https://github.com/ReactiveX/RxJava)
+* [Dagger 2](https://github.com/google/dagger)
+* [Room](https://developer.android.com/topic/libraries/architecture/room)
+* [WorkManager](https://developer.android.com/topic/libraries/architecture/workmanager) 
+
+## Contributing
+
+Please contribute to the project either by creating a PR or submitting an issue on GitHub.
+
+## License
+
+This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details

README.md

@@ -1,22 +1,62 @@
+[English version of README](README.en.md)
+
 # Wulkanowy
-
-[![CircleCI](https://img.shields.io/circleci/project/github/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://circleci.com/gh/wulkanowy/wulkanowy)
 [![Travis](https://img.shields.io/travis/com/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://travis-ci.com/wulkanowy/wulkanowy)
-[![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/)
-[![Sonarcloud](https://sonarcloud.io/api/project_badges/measure?project=io.github.wulkanowy%3Aapp&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=io.github.wulkanowy%3Aapp)
-[![FOSSA Status](https://app.fossa.com/api/projects/custom%2B5644%2Fgithub.com%2Fwulkanowy%2Fwulkanowy.svg?type=shield)](https://app.fossa.com/projects/custom%2B5644%2Fgithub.com%2Fwulkanowy%2Fwulkanowy?ref=badge_shield)
 [![Discord](https://img.shields.io/discord/390889354199040011.svg?style=flat-square)](https://discord.gg/vccAQBr)
+[![F-Droid](https://img.shields.io/f-droid/v/io.github.wulkanowy.svg)](https://f-droid.org/packages/io.github.wulkanowy/)
+[![Last release](https://img.shields.io/github/release/wulkanowy/wulkanowy.svg?logo=github)](https://github.com/wulkanowy/wulkanowy/releases)
 
-[Pobierz wersję beta z Google Play](https://play.google.com/store/apps/details?id=io.github.wulkanowy&utm_source=vcs)
+Nieoficjalny klient dziennika VULCAN UONET+ dla ucznia i rodzica
 
-[Pobierz wersję DEV](https://bitrise-redirector.herokuapp.com/v0.1/apps/f841f20d8f8b1dc8/builds/master/artifacts/0)
-[(Więcej wersji DEV)](https://wulkanowy.github.io/dev.html)
+## Funkcje
 
-Androidowy klient dziennika VULCAN UONET+.
+* logowanie za pomocą e-maila i hasła
+* funkcje ze strony internetowej dziennika:
+    * oceny
+    * statystyki ocen
+    * frekwencja
+    * procent frekwencji
+    * sprawdziany
+    * plan lekcji
+    * lekcje zrealizowane
+    * wiadomości
+    * zadania domowe
+    * uwagi
+    * szczęśliwy numerek
+* obliczanie średniej
+* powiadomienia np. o nowej ocenie
+* ciemny i czarny (AMOLED) motyw
+* tryb offilne
+* brak reklam
+
+## Pobierz
+
+Aktualną wersję beta możesz pobrać ze sklepu Google Play lub Fdroid
+
+[<img src="https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png"
+      alt="Pobierz z Google Play"
+      height="80">](https://play.google.com/store/apps/details?id=io.github.wulkanowy)
+[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png"
+    alt="Pobierz z Fdroid"
+    height="80">](https://f-droid.org/packages/io.github.wulkanowy/)
 
 
-## License
+Możesz także pobrać [wersję rozwojową](https://wulkanowy.github.io/#download), która zawiera nowe funkcje przygotowywane do następnego wydania
 
-[![FOSSA Status](https://app.fossa.com/api/projects/custom%2B5644%2Fgithub.com%2Fwulkanowy%2Fwulkanowy.svg?type=large)](https://app.fossa.com/projects/custom%2B5644%2Fgithub.com%2Fwulkanowy%2Fwulkanowy?ref=badge_large)
+
+## Zbudowana za pomocą
+
+* [Wulkanowy API](https://github.com/wulkanowy/api)
+* [RxJava 2](https://github.com/ReactiveX/RxJava)
+* [Dagger 2](https://github.com/google/dagger)
+* [Room](https://developer.android.com/topic/libraries/architecture/room)
+* [WorkManager](https://developer.android.com/topic/libraries/architecture/workmanager) 
+
+## Współpraca
+
+Wnieś swój wkład w projekt, tworząc PR lub wysyłając issue na GitHub.
+
+## Licencja
+
+Ten projekt jest licencjonowany w ramach Apache License 2.0 - szczegóły w pliku [LICENSE](LICENSE)

app/.gitignore

@@ -1 +0,0 @@
-/build

app/build.gradle

@@ -6,6 +6,7 @@ apply plugin: 'io.fabric'
 apply plugin: 'com.github.triplet.play'
 apply from: 'jacoco.gradle'
 apply from: 'sonarqube.gradle'
+apply from: 'hooks.gradle'
 
 android {
     compileSdkVersion 28
@@ -14,10 +15,10 @@ android {
     defaultConfig {
         applicationId "io.github.wulkanowy"
         testApplicationId "io.github.tests.wulkanowy"
-        minSdkVersion 15
+        minSdkVersion 16
         targetSdkVersion 28
-        versionCode 36
-        versionName "0.8.3"
+        versionCode 43
+        versionName "0.10.0"
         multiDexEnabled true
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
@@ -27,7 +28,8 @@ android {
         ]
         javaCompileOptions {
             annotationProcessorOptions {
-                arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
+                arguments = ["room.schemaLocation": "$projectDir/schemas".toString(),
+                             "room.incremental"   : "true"]
             }
         }
     }
@@ -63,6 +65,19 @@ android {
         }
     }
 
+    flavorDimensions "platform"
+
+    productFlavors {
+        play {
+            dimension "platform"
+        }
+
+        fdroid {
+            buildConfigField "boolean", "CRASHLYTICS_ENABLED", "false"
+            dimension "platform"
+        }
+    }
+
     lintOptions {
         disable 'HardwareIds'
     }
@@ -71,6 +86,15 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+
+    packagingOptions {
+        exclude 'META-INF/library_release.kotlin_module'
+        exclude 'META-INF/library-core_release.kotlin_module'
+    }
 }
 
 androidExtensions {
@@ -84,71 +108,100 @@ play {
     track = 'alpha'
 }
 
+ext {
+    work_manager = "2.2.0"
+    room = "2.2.0-beta01"
+    dagger = "2.24"
+    chucker = "2.0.4"
+    mockk = "1.9.2"
+    mockito_core = "3.0.6"
+}
+
+configurations.all {
+    resolutionStrategy.force "androidx.constraintlayout:constraintlayout:1.1.3"
+    resolutionStrategy.force "com.google.android.material:material:1.1.0-alpha07"
+}
+
 dependencies {
-    implementation 'io.github.wulkanowy:api:0.8.3'
+    implementation "io.github.wulkanowy:api:0.10.0"
 
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation "androidx.legacy:legacy-support-v4:1.0.0"
-    implementation "androidx.appcompat:appcompat:1.0.2"
-    implementation 'androidx.multidex:multidex:2.0.1'
+    implementation "androidx.core:core-ktx:1.1.0-rc03"
+    implementation "androidx.activity:activity-ktx:1.0.0-rc01"
+    implementation "androidx.appcompat:appcompat:1.1.0-rc01"
+    implementation "androidx.appcompat:appcompat-resources:1.1.0-rc01"
+    implementation "androidx.fragment:fragment-ktx:1.1.0-rc04"
+    implementation "androidx.annotation:annotation:1.1.0"
+    implementation "androidx.multidex:multidex:2.0.1"
 
-    implementation "androidx.cardview:cardview:1.0.0"
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation "com.google.android.material:material:1.1.0-alpha05"
-    implementation 'com.github.wulkanowy:MaterialChipsInput:b72fd0ee6f'
-    implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
+    implementation "androidx.preference:preference-ktx:1.1.0-rc01"
+    implementation "androidx.recyclerview:recyclerview:1.1.0-beta03"
+    implementation "androidx.viewpager:viewpager:1.0.0"
+    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
+    implementation "androidx.constraintlayout:constraintlayout:1.1.3"
+    implementation "androidx.coordinatorlayout:coordinatorlayout:1.1.0-beta01"
+    implementation "com.google.android.material:material:1.1.0-alpha07"
+    implementation "com.github.wulkanowy:material-chips-input:2.0.1"
+    implementation "com.github.PhilJay:MPAndroidChart:v3.1.0"
+    implementation "me.zhanghai.android.materialprogressbar:library:1.6.1"
 
-    implementation "androidx.work:work-runtime:2.0.1"
-    implementation "androidx.work:work-rxjava2:2.0.1"
+    implementation "androidx.work:work-runtime-ktx:$work_manager"
+    implementation "androidx.work:work-rxjava2:$work_manager"
+    implementation "androidx.work:work-gcm:$work_manager"
 
-    implementation "androidx.room:room-runtime:2.1.0-alpha07"
-    implementation "androidx.room:room-rxjava2:2.1.0-alpha07"
-    kapt "androidx.room:room-compiler:2.1.0-alpha07"
+    implementation "androidx.room:room-runtime:$room"
+    implementation "androidx.room:room-rxjava2:$room"
+    implementation "androidx.room:room-ktx:$room"
+    kapt "androidx.room:room-compiler:$room"
 
-    implementation "com.google.dagger:dagger-android-support:2.22.1"
-    kapt "com.google.dagger:dagger-compiler:2.22.1"
-    kapt "com.google.dagger:dagger-android-processor:2.22.1"
-    implementation 'com.squareup.inject:assisted-inject-annotations-dagger2:0.4.0'
-    kapt 'com.squareup.inject:assisted-inject-processor-dagger2:0.4.0'
+    implementation "com.google.dagger:dagger-android-support:$dagger"
+    kapt "com.google.dagger:dagger-compiler:$dagger"
+    kapt "com.google.dagger:dagger-android-processor:$dagger"
+    implementation "com.squareup.inject:assisted-inject-annotations-dagger2:0.5.0"
+    kapt "com.squareup.inject:assisted-inject-processor-dagger2:0.5.0"
 
     implementation "eu.davidea:flexible-adapter:5.1.0"
     implementation "eu.davidea:flexible-adapter-ui:1.0.0"
     implementation "com.aurelhubert:ahbottomnavigation:2.3.4"
-    implementation 'com.ncapdevi:frag-nav:3.2.0'
+    implementation "com.ncapdevi:frag-nav:3.3.0"
 
-    implementation 'com.github.pwittchen:reactivenetwork-rx2:3.0.2'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
-    implementation "io.reactivex.rxjava2:rxjava:2.2.8"
+    implementation "com.github.pwittchen:reactivenetwork-rx2:3.0.6"
+    implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
+    implementation "io.reactivex.rxjava2:rxjava:2.2.12"
 
-    implementation 'com.google.code.gson:gson:2.8.5'
-    implementation "com.jakewharton.threetenabp:threetenabp:1.2.0"
+    implementation "com.google.code.gson:gson:2.8.5"
+    implementation "com.jakewharton.threetenabp:threetenabp:1.2.1"
     implementation "com.jakewharton.timber:timber:4.7.1"
     implementation "at.favre.lib:slf4j-timber:1.0.1"
-    implementation "com.squareup.okhttp3:logging-interceptor:3.12.1"
+    implementation "com.squareup.okhttp3:logging-interceptor:3.12.3"
+    implementation "com.mikepenz:aboutlibraries:7.0.3"
 
-    implementation "com.mikepenz:aboutlibraries:6.2.3"
-    implementation 'com.takisoft.preferencex:preferencex:1.0.0'
+    playImplementation "com.google.firebase:firebase-core:17.2.0"
+    playImplementation "com.crashlytics.sdk.android:crashlytics:2.10.1"
 
-    implementation 'com.google.firebase:firebase-core:16.0.8'
-    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.9'
+    releaseImplementation "fr.o80.chucker:library-no-op:$chucker"
 
-    releaseImplementation 'fr.o80.chucker:library-no-op:2.0.4'
-
-    debugImplementation 'fr.o80.chucker:library:2.0.4'
+    debugImplementation "fr.o80.chucker:library:$chucker"
     debugImplementation "com.amitshekhar.android:debug-db:1.0.6"
 
     testImplementation "junit:junit:4.12"
-    testImplementation "io.mockk:mockk:1.9.2"
-    testImplementation "org.mockito:mockito-inline:2.27.0"
-    testImplementation 'org.threeten:threetenbp:1.3.8'
+    testImplementation "io.mockk:mockk:$mockk"
+    testImplementation "org.threeten:threetenbp:1.4.0"
+    testImplementation "org.mockito:mockito-core:$mockito_core"
+    testImplementation("org.mockito:mockito-inline:3.0.6") {
+        exclude group: "org.mockito", module: "mockito-core"
+    }
 
-    androidTestImplementation 'androidx.test:core:1.1.0'
-    androidTestImplementation 'androidx.test:runner:1.1.1'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
-    androidTestImplementation "io.mockk:mockk-android:1.9.2"
-    androidTestImplementation 'org.mockito:mockito-android:2.27.0'
-    androidTestImplementation "androidx.room:room-testing:2.1.0-alpha07"
+    androidTestImplementation "androidx.test:core:1.2.0"
+    androidTestImplementation "androidx.test:runner:1.2.0"
+    androidTestImplementation "androidx.test.ext:junit:1.1.1"
+    androidTestImplementation "io.mockk:mockk-android:$mockk"
+    androidTestImplementation "androidx.room:room-testing:$room"
     androidTestImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
+    androidTestImplementation "org.mockito:mockito-core:$mockito_core"
+    androidTestImplementation("org.mockito:mockito-android:3.0.6") {
+        exclude group: 'org.mockito', module: 'mockito-core'
+    }
 }
 
 apply plugin: 'com.google.gms.google-services'

app/hooks.gradle

@@ -0,0 +1,10 @@
+apply plugin: "com.star-zero.gradle.githook"
+
+githook {
+    failOnMissingHooksDir = false
+    hooks {
+        "pre-push" {
+            shell = "./app/play-publish-lint.sh"
+        }
+    }
+}

app/jacoco.gradle

@@ -1,7 +1,7 @@
 apply plugin: "jacoco"
 
 jacoco {
-    toolVersion "0.8.3"
+    toolVersion "0.8.4"
     reportsDir = file("$buildDir/reports")
 }
 
@@ -35,11 +35,14 @@ task jacocoTestReport(type: JacocoReport) {
             dir: "$buildDir/intermediates/classes/debug",
             excludes: excludes
     ) + fileTree(
-            dir: "$buildDir/tmp/kotlin-classes/debug",
+            dir: "$buildDir/tmp/kotlin-classes/playDebug",
             excludes: excludes
     ))
 
-    sourceDirectories.setFrom(files("$project.projectDir/src/main/java"))
+    sourceDirectories.setFrom(files([
+            "src/main/java",
+            "src/play/java"
+    ]))
     executionData.setFrom(fileTree(
             dir: project.projectDir,
             includes: ["**/*.exec", "**/*.ec"]

app/play-publish-lint.sh

@@ -0,0 +1,7 @@
+#!/bin/bash -
+
+content=$(cat < "app/src/main/play/release-notes/pl-PL/default.txt") || exit
+if [[ "${#content}" -gt 500 ]]; then
+    echo >&2 "Release notes content has reached the limit of 500 characters"
+    exit 1
+fi

app/proguard-rules.pro

@@ -11,6 +11,10 @@
 -verbose
 
 
+#Keep all wulkanowy files
+-keep class io.github.wulkanowy.** {*;}
+
+
 #Config for anallitycs
 -keepattributes *Annotation*
 -keepattributes SourceFile,LineNumberTable
@@ -32,8 +36,10 @@
 -dontwarn rx.internal.util.**
 -dontwarn sun.misc.Unsafe
 
+
 #Config for MPAndroidChart
 -keep class com.github.mikephil.charting.** { *; }
 
-#Config for API
--keep class io.github.wulkanowy.api.** {*;}
+
+#Config for Material Components
+-keep class com.google.android.material.tabs.**

app/sonarqube.gradle

@@ -29,5 +29,6 @@ sonarqube {
         property "sonar.java.coveragePlugin", "jacoco"
         property "sonar.android.lint.report", "build/reports/lint-results.xml"
         property "sonar.jacoco.reportPaths", fileTree(dir: project.projectDir, includes: ['**/*.exec', '**/*.ec'])
+        property "sonar.coverage.jacoco.xmlReportPaths", "build/reports/jacocoTestReport/jacocoTestReport.xml"
     }
 }

app/src/androidTest/java/io/github/wulkanowy/data/db/migrations/AbstractMigrationTest.kt

@@ -22,7 +22,12 @@ abstract class AbstractMigrationTest {
     fun getMigratedRoomDatabase(): AppDatabase {
         val database = Room.databaseBuilder(ApplicationProvider.getApplicationContext(),
             AppDatabase::class.java, dbName)
-            .addMigrations(Migration12(), Migration13())
+            .addMigrations(
+                Migration12(),
+                Migration13(),
+                Migration14(),
+                Migration15()
+            )
             .build()
         // close the database and release any stream resources when the test finishes
         helper.closeWhenFinished(database)

app/src/androidTest/java/io/github/wulkanowy/data/repositories/student/StudentLocalTest.kt

@@ -5,7 +5,7 @@ import androidx.room.Room
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import io.github.wulkanowy.data.db.AppDatabase
-import io.github.wulkanowy.data.db.SharedPrefHelper
+import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.db.entities.Student
 import org.junit.After
 import org.junit.Before
@@ -21,14 +21,14 @@ class StudentLocalTest {
 
     private lateinit var testDb: AppDatabase
 
-    private lateinit var sharedHelper: SharedPrefHelper
+    private lateinit var sharedProvider: SharedPrefProvider
 
     @Before
     fun createDb() {
         val context = ApplicationProvider.getApplicationContext<Context>()
         testDb = Room.inMemoryDatabaseBuilder(context, AppDatabase::class.java)
             .build()
-        sharedHelper = SharedPrefHelper(context.getSharedPreferences("TEST", Context.MODE_PRIVATE))
+        sharedProvider = SharedPrefProvider(context.getSharedPreferences("TEST", Context.MODE_PRIVATE))
         studentLocal = StudentLocal(testDb.studentDao, context)
     }
 

app/src/androidTest/java/io/github/wulkanowy/data/repositories/timetable/TestTimetableEntityCreator.kt

@@ -7,7 +7,7 @@ import org.threeten.bp.LocalDateTime.now
 import io.github.wulkanowy.api.timetable.Timetable as TimetableRemote
 import io.github.wulkanowy.data.db.entities.Timetable as TimetableLocal
 
-fun createTimetableLocal(number: Int, start: LocalDateTime, room: String = "", subject: String = "", teacher: String = ""): TimetableLocal {
+fun createTimetableLocal(number: Int, start: LocalDateTime, room: String = "", subject: String = "", teacher: String = "", changes: Boolean = false): TimetableLocal {
     return TimetableLocal(
         studentId = 1,
         diaryId = 2,
@@ -23,12 +23,12 @@ fun createTimetableLocal(number: Int, start: LocalDateTime, room: String = "", s
         teacher = teacher,
         teacherOld = "",
         info = "",
-        changes = false,
+        changes = changes,
         canceled = false
     )
 }
 
-fun createTimetableRemote(number: Int, start: LocalDateTime, room: String, subject: String = "", teacher: String = ""): TimetableRemote {
+fun createTimetableRemote(number: Int, start: LocalDateTime, room: String, subject: String = "", teacher: String = "", changes: Boolean = false): TimetableRemote {
     return TimetableRemote(
         number = number,
         start = start.toDate(),
@@ -39,7 +39,7 @@ fun createTimetableRemote(number: Int, start: LocalDateTime, room: String, subje
         room = room,
         teacher = teacher,
         info = "",
-        changes = false,
+        changes = changes,
         canceled = false
     )
 }

app/src/androidTest/java/io/github/wulkanowy/data/repositories/timetable/TimetableRepositoryTest.kt

@@ -60,7 +60,7 @@ class TimetableRepositoryTest {
     }
 
     @Test
-    fun copyDetailsToCompletedFromPrevious() {
+    fun copyRoomToCompletedFromPrevious() {
         timetableLocal.saveTimetable(listOf(
             createTimetableLocal(1, of(2019, 3, 5, 8, 0), "123", "Przyroda"),
             createTimetableLocal(2, of(2019, 3, 5, 8, 50), "321", "Religia"),
@@ -83,7 +83,32 @@ class TimetableRepositoryTest {
         assertEquals("123", lessons[0].room)
         assertEquals("321", lessons[1].room)
         assertEquals("213", lessons[2].room)
+    }
 
-        assertEquals("", lessons[3].teacher)
+    @Test
+    fun copyTeacherToCompletedFromPrevious() {
+        timetableLocal.saveTimetable(listOf(
+            createTimetableLocal(1, of(2019, 3, 5, 8, 0), "123", "Przyroda", "Jan Garnkiewicz", false),
+            createTimetableLocal(2, of(2019, 3, 5, 8, 50), "321", "Religia", "Paweł Jumper", false),
+            createTimetableLocal(3, of(2019, 3, 5, 9, 40), "213", "W-F", "", true),
+            createTimetableLocal(4, of(2019, 3, 5, 10, 30), "213", "W-F", "", false)
+        ))
+
+        every { mockApi.getTimetable(any(), any()) } returns Single.just(listOf(
+            createTimetableRemote(1, of(2019, 3, 5, 8, 0), "", "Przyroda", "", true), // should override local
+            createTimetableRemote(2, of(2019, 3, 5, 8, 50), "", "Religia", "", false),
+            createTimetableRemote(3, of(2019, 3, 5, 9, 40), "", "W-F", "Jan Garnkiewicz", false),
+            createTimetableRemote(4, of(2019, 3, 5, 10, 30), "", "W-F", "Paweł Jumper", false)
+        ))
+
+        val lessons = TimetableRepository(settings, timetableLocal, timetableRemote)
+            .getTimetable(semesterMock, LocalDate.of(2019, 3, 5), LocalDate.of(2019, 3, 5), true)
+            .blockingGet()
+
+        assertEquals(4, lessons.size)
+        assertEquals("", lessons[0].teacher)
+        assertEquals("Paweł Jumper", lessons[1].teacher)
+        assertEquals("Jan Garnkiewicz", lessons[2].teacher)
+        assertEquals("Paweł Jumper", lessons[3].teacher)
     }
 }

app/src/debug/res/drawable/ic_launcher_foreground.xml

@@ -1,58 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="108dp"
-        android:height="108dp"
-        android:viewportWidth="1926.9231"
-        android:viewportHeight="1926.9231">
-    <group android:translateX="462.46155"
-            android:translateY="462.46155">
-      <path
-          android:pathData="M2000,1440.1V2002H1240.1L238.1,1000v0l-120,-120c0.2,-0.2 -0.7,-1.6 -0.6,-1.8 1.6,-3.1 3.4,-6 5,-9.1 0.4,-0.8 0.6,-1.6 0.6,-2.5 9.2,-15.1 20.2,-28.9 31.4,-42.6 0.1,-0.2 0.3,-0.3 0.4,-0.5 5.1,-6.3 10.3,-12.6 15.3,-18.9 1,-1.2 1.9,-2.4 2.9,-3.7 0.2,-0.2 0.3,-0.4 0.5,-0.6 7.6,-9.7 14.8,-19.7 21.2,-30.2 1,-1.7 2,-3.4 2.9,-5.1 0.1,-0.2 0.2,-0.3 0.3,-0.5 6.2,-11.4 11.3,-23.3 17.7,-34.6 4.5,-8 9.3,-15.9 13.8,-23.9 0.1,-0.2 0.2,-0.3 0.3,-0.5 0.8,-1.5 1.6,-3 2.4,-4.4 0.2,-0.3 0.3,-0.6 0.5,-0.9 2,-3.7 3.8,-7.4 5.6,-11.2 6.2,-13.4 10.2,-27.7 14,-41.9 0,-0.2 0.1,-0.3 0.1,-0.5 0.3,-1 0.5,-2 0.8,-2.9 4,-15.3 7.3,-31.4 13.5,-45.9 1.4,-3.3 3,-6.5 4.6,-9.6 0.1,-0.2 0.2,-0.3 0.3,-0.5 5,-9.7 10.6,-19.1 13.5,-29.7 2.6,-9.2 3.5,-19 3.6,-28.8 0,-0.2 0,-0.3 0,-0.5 0.1,-7.2 -0.1,-14.4 -0.4,-21.3 0.9,-5.6 1.9,-11.3 3,-16.9 0.2,-0.9 0.3,-1.7 0.5,-2.6 1.2,-5.9 2.5,-11.7 4.2,-17.4 0,-0.1 0.1,-0.3 0.1,-0.4 0,-0.2 0.1,-0.3 0.1,-0.5 0.2,-2.1 -0.8,-3.7 -2.4,-4.5l7.7,-7.6c1.2,0.9 2.7,1.3 4.3,0.9 12.8,-3.9 24.9,-9.9 36.3,-16.8 2.8,-1.7 5.6,-3.4 8.3,-5.2 0.2,-0.1 0.3,-0.2 0.5,-0.3 7.7,-4.9 15.2,-10.2 22.1,-16 3.1,-2.7 5.9,-5.6 8.3,-8.9 0.1,-0.2 0.2,-0.3 0.4,-0.5 2.3,-3.4 4.2,-7.2 5.3,-11.4 2.4,-9.2 1.9,-19 1.9,-28.4 0,-0.2 0,-0.4 0,-0.6l5.7,-5.6 -0.3,0.1 4.1,1.3 45.3,45 9.6,9.6 14.3,14.3 100.8,100.8 17.2,17.2 16.3,16.3 30.3,-30.3 -192.9,-191.5c0.5,-0.5 1.1,-1.6 1.4,-2.3 0.3,-0.6 0.5,-1.2 0.4,-1.9 0,-0.8 -0.2,-1.6 -0.6,-2.3 -0.1,-0.3 -0.3,-0.7 -0.4,-1 -0.2,-0.4 -0.5,-0.7 -0.9,-1.1l27.8,-27.8 191.1,-191.1c0.7,0.4 1.5,0.6 2.5,0.7 4.1,0 8.2,0.1 11.9,1.9 0.5,0.3 1.3,0.7 2.1,1.1 1.7,2.3 3.5,4.5 5.7,6.2 2.7,2.1 8.2,3 9.4,0.3z"
-          android:fillColor="#AD2A2A"/>
-      <path
-          android:pathData="m616.3,796.7c0.4,1.2 0.5,2.4 0.5,3.7l-5.8,73.3c-0.4,5.2 -5,9.3 -10.6,9.3h-187.2c-4,0 -7.7,-2.3 -9.5,-5.6l-30.9,-57.4c-0.2,-0.3 -0.3,-0.6 -0.4,-0.9l-29.1,-70.5c-1.1,-2.5 -0.9,-5.4 0.3,-7.8l48.3,-94.5c1.2,-2.3 1.4,-5 0.5,-7.4l-23.6,-65.4c-0.8,-2.3 -0.7,-4.9 0.3,-7.1l39.4,-83.9c4,-8.4 17.1,-7.7 19.9,1.1l12.3,38.2 37.5,100.4c1,2.8 3.4,5 6.4,6l80,27.3c3.1,1.1 5.5,3.4 6.5,6.3z"
-          android:fillColor="#FFFFFF"/>
-      <path
-          android:pathData="m386.7,253.5c0,-22.9 14.5,-42.6 35.3,-51.8 -1.5,-2.5 -2.4,-5.2 -2.4,-8.1 0,-11.1 12.8,-20.1 28.5,-20.1 0.4,0 0.7,0 1.1,0 6.5,-10.8 18.9,-18.1 33.1,-18.1 1,0 2,0 3,0.1 1.3,0.1 2.6,-0.5 3.3,-1.5 10.5,-16 37.1,-27.4 68.2,-27.4 11.5,0 22.4,1.6 32.1,4.3 2.3,-3.8 7.4,-6.4 13.3,-6.4 6.7,0 12.4,3.4 14.1,8.1 8.2,-9.5 22.1,-15.7 37.9,-15.7 25.2,0 45.6,15.9 45.6,35.5 0,2.4 -0.3,4.7 -0.9,7 -0.4,1.6 0.5,3.2 2.2,3.8 16.1,5.9 27,17.1 27,29.9 0,14.6 -14.1,27.1 -34,32 -1.6,0.4 -2.6,1.8 -2.6,3.3 0,0.1 0,0.2 0,0.3 0,11.3 -11.2,20.6 -25.6,21.6 0.1,0.5 0.1,1 0.1,1.6 0,21.7 -41.3,39.2 -92.2,39.2 -11,0 -21.5,-0.8 -31.2,-2.3 0,0.2 0,0.3 0,0.5 0,9 -11.6,16.3 -25.8,16.3 -0.8,0 -1.5,0 -2.2,-0.1 1,2.2 1.5,4.5 1.5,6.9 0,14 -17.7,25.3 -39.6,25.3 -2.4,0 -4.7,-0.1 -7,-0.4 -1.8,-0.2 -3.5,0.9 -3.9,2.6 -1.9,7 -8,12.1 -15.3,12.1 -8.8,0 -15.8,-7.5 -15.8,-16.7 0,-4.3 1.5,-8.2 4,-11.1 0.9,-1 1.2,-2.4 0.6,-3.6 -1.4,-2.6 -2,-5.3 -2,-8.2v0c0,-1.6 -1.3,-2.9 -2.9,-3.3 -27.1,-6 -47.5,-28.6 -47.5,-55.6z"
-          android:fillColor="#FFFFFF"/>
-      <path
-          android:pathData="m870.4,883h-124.4c-3.6,0 -6.9,-1.8 -8.9,-4.6l-83.7,-117.7c-0.5,-0.8 -1,-1.6 -1.3,-2.5l-41.5,-121.2c-0.8,-2.4 -2.7,-4.5 -5.1,-5.7l-101.6,-51.3c-2.8,-1.4 -4.8,-4 -5.4,-6.9l-15,-74.4c-0.2,-1.2 -0.7,-2.4 -1.5,-3.5l-34.5,-50.7c-1.9,-2.8 -2.2,-6.2 -0.8,-9.2l21,-44.9c1.6,-3.4 5.1,-5.7 9.1,-5.9l39,-2.3c2.3,-0.1 4.4,-0.9 6.1,-2.3l28.7,-22.3c5.4,-4.2 13.6,-2.4 16.5,3.5l98.9,201.2c0.4,0.9 0.7,1.8 0.9,2.7l12.2,80.9c0.3,1.9 1.1,3.6 2.4,5l197,215.6c5.8,6.4 0.9,16.5 -8.1,16.5z"
-          android:fillColor="#FFFFFF"/>
-      <path
-          android:pathData="m335.8,838.9c0.8,2.6 0.4,5.4 -1,7.7l-19.3,31.3c-1.9,3.1 -5.4,5.1 -9.2,5.1h-180.6c-8.4,0 -13.5,-8.8 -9,-15.4l116.3,-171.3c0.7,-1 1.1,-2.1 1.4,-3.2l53.3,-227.6c0.6,-2.7 2.4,-5 5,-6.4l72.2,-39.6c2.6,-1.4 4.4,-3.7 5,-6.5l9.7,-42.3c2,-8.8 14.6,-10.7 19.6,-3l3.5,5.6c1.5,2.4 1.9,5.4 0.9,8.1l-65.8,190.2c-0.5,1.5 -0.7,3.1 -0.4,4.7l16.4,91c0.3,1.8 0.1,3.7 -0.7,5.4l-39.1,87.8c-0.9,2.1 -1.1,4.4 -0.4,6.5z"
-          android:fillColor="#FFFFFF"/>
-      <path
-          android:pathData="m424.22,657.05 l1580.54,-0.05c0.54,0 0,292 0,292l-1580.54,-0.03c-10.78,0 -19.46,-8.68 -19.46,-19.46l0,-252.99c0,-10.78 8.68,-19.46 19.46,-19.46z"
-          android:strokeAlpha="0.49803922"
-          android:strokeLineJoin="round"
-          android:strokeWidth="4"
-          android:fillColor="#3f3f3f"
-          android:strokeColor="#00000000"
-          android:fillType="nonZero"
-          android:fillAlpha="1"
-          android:strokeLineCap="square"/>
-      <path
-          android:pathData="m728.71,710.91l0,19.89l-88.7,0l0,59.3l77.04,0L717.05,810l-77.04,0l0,65.39l89.84,0l0,19.9L616.56,895.29L616.56,791.16l-52.35,-52.35 -0.77,-0.18c5.41,6.64 9.65,14.32 12.69,23.09 3.72,10.39 5.62,21.92 5.7,34.6L581.84,809.87c-0.08,12.67 -1.98,24.25 -5.7,34.72 -3.63,10.39 -8.95,19.35 -15.97,26.87 -6.93,7.43 -15.46,13.26 -25.6,17.49 -7.54,3.1 -15.86,5.07 -24.97,5.89 -3.04,0.27 -6.16,0.42 -9.37,0.45L457.53,895.29l0,-6.55l-0.37,6.82 53.8,53.45l415.85,0c0.24,0 0.47,-0.02 0.69,-0.05L1132.91,948.97L953.5,769.55l-58.39,-58.39 -0.28,0.06 -58.03,184.06l-20.4,0l-44.66,-141.34zM783.29,711.07 L826.41,857.52 850.08,777.86zM509.6,711.29c1.52,0.15 3.01,0.33 4.49,0.54 -1.47,-0.21 -2.97,-0.39 -4.49,-0.54zM481.35,730.04l0,146.11l18.88,0c9.97,-0.08 18.59,-1.81 25.85,-5.19 7.27,-3.46 13.26,-8.15 17.99,-14.07 4.82,-5.91 8.36,-12.88 10.64,-20.91 2.37,-8.03 3.59,-16.73 3.68,-26.11l0,-13.81c-0.08,-9.38 -1.31,-18.04 -3.68,-25.98 -2.37,-8.03 -5.91,-14.95 -10.64,-20.78 -4.73,-5.91 -10.73,-10.56 -17.99,-13.94 -7.27,-3.38 -15.88,-5.15 -25.85,-5.32zM560.17,734.86c0.65,0.69 1.26,1.4 1.88,2.11 -0.61,-0.72 -1.23,-1.42 -1.88,-2.11z"
-          android:strokeAlpha="1"
-          android:strokeLineJoin="miter"
-          android:strokeWidth="1.94642854"
-          android:fillColor="#000000"
-          android:strokeColor="#00000000"
-          android:fillAlpha="0.18431373"
-          android:strokeLineCap="butt"/>
-      <path
-          android:pathData="m457.53,895.28l0,-184.51l42.7,0q19.26,0.25 34.34,6.59 15.21,6.21 25.6,17.49 10.52,11.15 15.97,26.86 5.58,15.59 5.7,34.59l0,13.56q-0.13,19.01 -5.7,34.72 -5.45,15.59 -15.97,26.86 -10.39,11.15 -25.6,17.49 -15.08,6.21 -34.34,6.34zM481.35,730.04l0,146.11l18.88,0q14.95,-0.13 25.85,-5.2 10.9,-5.2 17.99,-14.07 7.22,-8.87 10.64,-20.91 3.55,-12.04 3.67,-26.1l0,-13.81q-0.13,-14.07 -3.67,-25.98 -3.55,-12.04 -10.64,-20.78 -7.1,-8.87 -17.99,-13.94 -10.9,-5.07 -25.85,-5.32z"
-          android:fillColor="#ffffff"
-          android:strokeColor="#00000000"
-          android:fillAlpha="1"/>
-      <path
-          android:pathData="M717.05,810L640.01,810l0,65.39l89.84,0l0,19.9l-113.29,0l0,-184.51l112.15,0l0,20.02L640.01,730.8l0,59.31l77.05,0z"
-          android:fillColor="#ffffff"
-          android:strokeColor="#00000000"
-          android:fillAlpha="1"/>
-      <path
-          android:pathData="m826.41,857.52 l43.59,-146.74l24.96,0l-58.16,184.51L816.4,895.28l-58.29,-184.51l25.09,0z"
-          android:fillColor="#ffffff"
-          android:strokeColor="#00000000"
-          android:fillAlpha="1"/>
-    </group>
-</vector>

app/src/debug/res/drawable/ic_launcher_foreground_dev.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="1926"
+    android:viewportHeight="1926">
+    <path
+        android:fillColor="#ad2a2a"
+        android:pathData="M2465,1904v561h-759L704,1463l-120,-120 -1,-1 5,-9 1,-3c9,-15 20,-29 31,-43l16,-19 3,-4 21,-30 3,-6c7,-11 12,-23 18,-35l14,-24 3,-4v-1a234,234 0,0 0,20 -53v-1l1,-3c4,-15 7,-31 13,-46l5,-9v-1c5,-10 11,-19 14, -30 2,-9 3,-19 3,-28v-1,-21l3,-17v-3l4,-17h1v-1c0,-2 -1,-4 -3,-4l8,-8 4,1c13,-4 25,-10 37,-17l8,-5 22,-16 9,-9v-1l5, -11c3,-9 2,-19 2,-29l6,-6 4,2 45,45 10,9 14,14 101,101 17,17 16,17 31,-31 -193,-191 1,-2 1,-2 -1,-3v-1l-1,-1 27,-27 192,-192 2,1a27,27 0,0 1,14 3l6,6c2,2 8,3 9,1l1310,1310z" />
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1082,1260v4l-6,73c0,5 -5,9 -10,9H879c-4,0 -8,-2 -10,-5l-31,-58 -29,-71v-8l48,-94c2,-3 2,-5 1, -8l-24,-65c-1,-2 0,-5 1,-7l39,-84c4,-8 17,-8 20,1l12,38 38,101c1,2 3,5 6,6l80,27c3,1 6,3 7,6l45,135zM852,717c0,-23 15,-43 35,-52l-2,-8c0,-11 13,-20 29,-20h1a38,38 0,0 1,36 -18l3,-2c11,-16 37,-27 68,-27 12,0 23,2 32,4 3,-3 8,-6 14,-6s12,3 14,8c8,-9 22,-16 38,-16 25,0 45,16 45,36l-1,7 3,4c16,6 27,17 27,30 0,14 -15,27 -34,32 -2,0 -3,1 -3,3 0,11 -11,21 -26,22v1c0,22 -41,40 -92,40 -11,0 -21,-1 -31,-3v1c0,9 -12,16 -26,16h-2l2,7c0,14 -18,25 -40,25h-7l-4, 2c-2,7 -8,12 -15,12 -9,0 -16,-7 -16,-16 0,-5 1,-8 4,-11l1,-4c-2,-3 -2,-5 -2,-8 0,-2 -2,-3 -3,-3 -27,-6 -48,-29 -48,-56z" />
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1336,1346h-125c-3,0 -6,-1 -8,-4l-84,-118 -1,-2 -42,-122 -5,-5 -102,-52 -5,-6 -15,-75 -2,-3 -34,-51c-2,-3 -2,-6 -1,-9l21,-45c2,-4 5,-6 9,-6l39,-2c3,0 5,-1 6,-3l29,-22c5,-4 14,-2 17,4l98,201 1,2 13,81 2,5 197,216c6,6 1,16 -8,16zM801,1302c1,3 1,6 -1,8l-19,31c-2,3 -5,5 -9,5H591c-8,0 -13,-8 -9,-15l116,-171 2,-3 53, -228c1,-3 3,-5 5,-6l72,-40c3,-1 5,-4 5,-7l10,-42c2,-9 15,-11 20,-3l3,6c2,2 2,5 1,8l-66,190v5l16,91v5l-40,88v6l22,72z" />
+    <path
+        android:fillColor="#3f3f3f"
+        android:pathData="M886.7,1119.5h1580.5c0.6,0 0,292 0,292H886.7a19.4,19.4 0,0 1,-19.5 -19.5v-253c0,-10.8 8.7,-19.5 19.5,-19.5z"
+        android:strokeWidth="4"
+        android:strokeAlpha=".5"
+        android:strokeColor="#000"
+        android:strokeLineCap="square"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillAlpha=".2"
+        android:fillColor="#000"
+        android:pathData="M1191.2,1173.4v19.9h-88.7v59.3h77v19.9h-77v65.4h89.8v19.9L1079,1357.8v-104.2l-52.3,-52.3 -0.8, -0.2a75.1,75.1 0,0 1,12.7 23,104 104,0 0,1 5.7,34.7v13.5c0,12.7 -2,24.3 -5.7,34.8a72.8,72.8 0,0 1,-41.6 44.4,85.5 85.5,0 0,1 -34.3,6.3L920,1357.8v-6.6l-0.4,6.8 53.8,53.5h622L1416,1232l-58.4,-58.4h-0.3l-58,184.1h -20.4l-44.7,-141.3zM1245.8,1173.5l43,146.5 23.7,-79.7zM972.1,1173.8zM943.8,1192.5v146.1h18.9a62,62 0,0 0,25.8 -5.2,50.3 50.3,0 0,0 18,-14c4.9,-6 8.4,-13 10.7,-21 2.3,-8 3.6,-16.7 3.7,-26v-13.9c-0.1,-9.4 -1.4,-18 -3.7,-26 -2.4,-8 -6,-15 -10.7,-20.7a49.3,49.3 0,0 0,-18 -14,63.4 63.4,0 0,0 -25.8,-5.3zM1022.6,1197.3l2,2.1 -2,-2z"
+        android:strokeWidth="1.9"
+        android:strokeColor="#000" />
+    <path
+        android:fillColor="#fff"
+        android:pathData="M920,1357.7v-184.5h42.7q19.3,0.3 34.3,6.6 15.2,6.2 25.6,17.5 10.6,11.2 16,26.9 5.6,15.6 5.7, 34.6v13.5q-0.1,19 -5.7,34.7 -5.4,15.6 -16,26.9 -10.4,11.2 -25.6,17.5 -15,6.2 -34.3,6.3zM943.8,1192.5v146.1h18.9q15, -0.1 25.8,-5.2 11,-5.2 18,-14 7.3,-9 10.7,-21 3.5,-12 3.6,-26v-13.9q0,-14 -3.6,-26t-10.7,-20.7q-7,-9 -18,-14 -10.9,-5 -25.8,-5.3zM1179.5,1272.5h-77v65.4h89.8v19.9L1079,1357.8v-184.6h112.2v20h-88.7v59.4h77zM1288.9, 1320l43.6,-146.8h25l-58.2,184.6h-20.4l-58.3,-184.6h25z"
+        android:strokeWidth="1"
+        android:strokeColor="#000" />
+</vector>

app/src/debug/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+    <background android:drawable="@color/colorPrimary" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground_dev" />
 </adaptive-icon>

app/src/debug/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+    <background android:drawable="@color/colorPrimary" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground_dev" />
 </adaptive-icon>

app/src/debug/res/values/ic_launcher_background.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="ic_launcher_background">#D32F2F</color>
-</resources>

app/src/fdroid/java/io/github/wulkanowy/utils/CrashlyticsUtils.kt

@@ -0,0 +1,17 @@
+@file:Suppress("UNUSED_PARAMETER")
+
+package io.github.wulkanowy.utils
+
+import android.content.Context
+import timber.log.Timber
+
+fun initCrashlytics(context: Context, appInfo: AppInfo) {
+    // do nothing
+}
+
+class CrashlyticsTree : Timber.Tree() {
+
+    override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
+        // do nothing
+    }
+}

app/src/fdroid/java/io/github/wulkanowy/utils/FirebaseAnalyticsHelper.kt

@@ -0,0 +1,13 @@
+package io.github.wulkanowy.utils
+
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class FirebaseAnalyticsHelper @Inject constructor() {
+
+    @Suppress("UNUSED_PARAMETER")
+    fun logEvent(name: String, vararg params: Pair<String, Any?>) {
+        // do nothing
+    }
+}

app/src/main/AndroidManifest.xml

@@ -4,8 +4,6 @@
     package="io.github.wulkanowy"
     android:installLocation="internalOnly">
 
-    <uses-sdk tools:overrideLibrary="com.readystatesoftware.chuck" />
-
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
@@ -45,6 +43,7 @@
             android:name=".ui.modules.message.send.SendMessageActivity"
             android:configChanges="orientation|screenSize"
             android:label="@string/send_message_title"
+            android:windowSoftInputMode="adjustResize"
             android:theme="@style/WulkanowyTheme.NoActionBar" />
         <activity
             android:name=".ui.modules.timetablewidget.TimetableWidgetConfigureActivity"
@@ -80,7 +79,6 @@
                 android:name="android.appwidget.provider"
                 android:resource="@xml/provider_widget_timetable" />
         </receiver>
-
         <receiver
             android:name=".ui.modules.luckynumberwidget.LuckyNumberWidgetProvider"
             android:label="@string/lucky_number_title">

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

@@ -1,35 +1,40 @@
 package io.github.wulkanowy
 
 import android.content.Context
+import android.util.Log.INFO
+import android.util.Log.VERBOSE
 import androidx.multidex.MultiDex
 import androidx.work.Configuration
-import androidx.work.WorkManager
-import com.crashlytics.android.Crashlytics
-import com.crashlytics.android.core.CrashlyticsCore
 import com.jakewharton.threetenabp.AndroidThreeTen
 import dagger.android.AndroidInjector
 import dagger.android.support.DaggerApplication
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.utils.Log
-import io.fabric.sdk.android.Fabric
-import io.github.wulkanowy.BuildConfig.CRASHLYTICS_ENABLED
-import io.github.wulkanowy.BuildConfig.DEBUG
 import io.github.wulkanowy.di.DaggerAppComponent
 import io.github.wulkanowy.services.sync.SyncWorkerFactory
+import io.github.wulkanowy.ui.base.ThemeManager
 import io.github.wulkanowy.utils.ActivityLifecycleLogger
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.CrashlyticsTree
 import io.github.wulkanowy.utils.DebugLogTree
+import io.github.wulkanowy.utils.initCrashlytics
 import io.reactivex.exceptions.UndeliverableException
 import io.reactivex.plugins.RxJavaPlugins
 import timber.log.Timber
 import java.io.IOException
 import javax.inject.Inject
 
-class WulkanowyApp : DaggerApplication() {
+class WulkanowyApp : DaggerApplication(), Configuration.Provider {
 
     @Inject
     lateinit var workerFactory: SyncWorkerFactory
 
+    @Inject
+    lateinit var themeManager: ThemeManager
+
+    @Inject
+    lateinit var appInfo: AppInfo
+
     override fun attachBaseContext(base: Context?) {
         super.attachBaseContext(base)
         MultiDex.install(this)
@@ -38,15 +43,15 @@ class WulkanowyApp : DaggerApplication() {
     override fun onCreate() {
         super.onCreate()
         AndroidThreeTen.init(this)
-        WorkManager.initialize(this, Configuration.Builder().setWorkerFactory(workerFactory).build())
         RxJavaPlugins.setErrorHandler(::onError)
+        themeManager.applyDefaultTheme()
 
-        initCrashlytics()
         initLogging()
+        initCrashlytics(this, appInfo)
     }
 
     private fun initLogging() {
-        if (DEBUG) {
+        if (appInfo.isDebug) {
             Timber.plant(DebugLogTree())
             FlexibleAdapter.enableLogs(Log.Level.DEBUG)
         } else {
@@ -55,19 +60,20 @@ class WulkanowyApp : DaggerApplication() {
         registerActivityLifecycleCallbacks(ActivityLifecycleLogger())
     }
 
-    private fun initCrashlytics() {
-        Fabric.with(Fabric.Builder(this).kits(
-            Crashlytics.Builder().core(CrashlyticsCore.Builder().disabled(!CRASHLYTICS_ENABLED).build()).build()
-        ).debuggable(DEBUG).build())
-    }
-
     private fun onError(error: Throwable) {
-        if (error is UndeliverableException && error.cause is IOException || error.cause is InterruptedException) {
-            Timber.e(error.cause, "An undeliverable error occurred")
+        //RxJava's too deep stack traces may cause SOE on older android devices
+        val cause = error.cause
+        if (error is UndeliverableException && cause is IOException || cause is InterruptedException || cause is StackOverflowError) {
+            Timber.e(cause, "An undeliverable error occurred")
         } else throw error
     }
 
     override fun applicationInjector(): AndroidInjector<out DaggerApplication> {
         return DaggerAppComponent.factory().create(this)
     }
+
+    override fun getWorkManagerConfiguration() = Configuration.Builder()
+        .setWorkerFactory(workerFactory)
+        .setMinimumLoggingLevel(if (appInfo.isDebug) VERBOSE else INFO)
+        .build()
 }

app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt

@@ -132,4 +132,8 @@ internal class RepositoryModule {
     @Singleton
     @Provides
     fun provideRecipientDao(database: AppDatabase) = database.recipientDao
+
+    @Singleton
+    @Provides
+    fun provideMobileDevicesDao(database: AppDatabase) = database.mobileDeviceDao
 }

app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt

@@ -16,6 +16,7 @@ import io.github.wulkanowy.data.db.dao.GradeSummaryDao
 import io.github.wulkanowy.data.db.dao.HomeworkDao
 import io.github.wulkanowy.data.db.dao.LuckyNumberDao
 import io.github.wulkanowy.data.db.dao.MessagesDao
+import io.github.wulkanowy.data.db.dao.MobileDeviceDao
 import io.github.wulkanowy.data.db.dao.NoteDao
 import io.github.wulkanowy.data.db.dao.RecipientDao
 import io.github.wulkanowy.data.db.dao.ReportingUnitDao
@@ -33,6 +34,7 @@ import io.github.wulkanowy.data.db.entities.GradeSummary
 import io.github.wulkanowy.data.db.entities.Homework
 import io.github.wulkanowy.data.db.entities.LuckyNumber
 import io.github.wulkanowy.data.db.entities.Message
+import io.github.wulkanowy.data.db.entities.MobileDevice
 import io.github.wulkanowy.data.db.entities.Note
 import io.github.wulkanowy.data.db.entities.Recipient
 import io.github.wulkanowy.data.db.entities.ReportingUnit
@@ -44,6 +46,8 @@ import io.github.wulkanowy.data.db.migrations.Migration10
 import io.github.wulkanowy.data.db.migrations.Migration11
 import io.github.wulkanowy.data.db.migrations.Migration12
 import io.github.wulkanowy.data.db.migrations.Migration13
+import io.github.wulkanowy.data.db.migrations.Migration14
+import io.github.wulkanowy.data.db.migrations.Migration15
 import io.github.wulkanowy.data.db.migrations.Migration2
 import io.github.wulkanowy.data.db.migrations.Migration3
 import io.github.wulkanowy.data.db.migrations.Migration4
@@ -73,7 +77,8 @@ import javax.inject.Singleton
         LuckyNumber::class,
         CompletedLesson::class,
         ReportingUnit::class,
-        Recipient::class
+        Recipient::class,
+        MobileDevice::class
     ],
     version = AppDatabase.VERSION_SCHEMA,
     exportSchema = true
@@ -82,7 +87,7 @@ import javax.inject.Singleton
 abstract class AppDatabase : RoomDatabase() {
 
     companion object {
-        const val VERSION_SCHEMA = 13
+        const val VERSION_SCHEMA = 15
 
         fun newInstance(context: Context): AppDatabase {
             return Room.databaseBuilder(context, AppDatabase::class.java, "wulkanowy_database")
@@ -101,7 +106,9 @@ abstract class AppDatabase : RoomDatabase() {
                     Migration10(),
                     Migration11(),
                     Migration12(),
-                    Migration13()
+                    Migration13(),
+                    Migration14(),
+                    Migration15()
                 )
                 .build()
         }
@@ -140,4 +147,6 @@ abstract class AppDatabase : RoomDatabase() {
     abstract val reportingUnitDao: ReportingUnitDao
 
     abstract val recipientDao: RecipientDao
+
+    abstract val mobileDeviceDao: MobileDeviceDao
 }

app/src/main/java/io/github/wulkanowy/data/db/SharedPrefProvider.kt

@@ -1,18 +1,15 @@
 package io.github.wulkanowy.data.db
 
-import android.annotation.SuppressLint
 import android.content.SharedPreferences
+import androidx.core.content.edit
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
-@SuppressLint("ApplySharedPref")
-class SharedPrefHelper @Inject constructor(private val sharedPref: SharedPreferences) {
+class SharedPrefProvider @Inject constructor(private val sharedPref: SharedPreferences) {
 
     fun putLong(key: String, value: Long, sync: Boolean = false) {
-        sharedPref.edit().putLong(key, value).apply {
-            if (sync) commit() else apply()
-        }
+        sharedPref.edit(sync) { putLong(key, value) }
     }
 
     fun getLong(key: String, defaultValue: Long) = sharedPref.getLong(key, defaultValue)

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

@@ -0,0 +1,21 @@
+package io.github.wulkanowy.data.db.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import io.github.wulkanowy.data.db.entities.MobileDevice
+import io.reactivex.Maybe
+
+@Dao
+interface MobileDeviceDao {
+
+    @Insert
+    fun insertAll(devices: List<MobileDevice>)
+
+    @Delete
+    fun deleteAll(devices: List<MobileDevice>)
+
+    @Query("SELECT * FROM MobileDevices WHERE student_id = :studentId ORDER BY date DESC")
+    fun loadAll(studentId: Int): Maybe<List<MobileDevice>>
+}

app/src/main/java/io/github/wulkanowy/data/db/entities/GradeSummary.kt

@@ -13,11 +13,26 @@ data class GradeSummary(
     @ColumnInfo(name = "student_id")
     val studentId: Int,
 
+    val position: Int,
+
     val subject: String,
 
+    @ColumnInfo(name = "predicted_grade")
     val predictedGrade: String,
 
-    val finalGrade: String
+    @ColumnInfo(name = "final_grade")
+    val finalGrade: String,
+
+    @ColumnInfo(name = "proposed_points")
+    val proposedPoints: String,
+
+    @ColumnInfo(name = "final_points")
+    val finalPoints: String,
+
+    @ColumnInfo(name = "points_sum")
+    val pointsSum: String,
+
+    val average: Double
 ) {
     @PrimaryKey(autoGenerate = true)
     var id: Long = 0

app/src/main/java/io/github/wulkanowy/data/db/entities/MobileDevice.kt

@@ -0,0 +1,25 @@
+package io.github.wulkanowy.data.db.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import org.threeten.bp.LocalDateTime
+import java.io.Serializable
+
+@Entity(tableName = "MobileDevices")
+data class MobileDevice(
+
+    @ColumnInfo(name = "student_id")
+    val studentId: Int,
+
+    @ColumnInfo(name = "device_id")
+    val deviceId: Int,
+
+    val name: String,
+
+    val date: LocalDateTime
+) : Serializable {
+
+    @PrimaryKey(autoGenerate = true)
+    var id: Long = 0
+}

app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration14.kt

@@ -0,0 +1,26 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration14 : Migration(13, 14) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("DROP TABLE IF EXISTS GradesSummary")
+        database.execSQL("""
+            CREATE TABLE IF NOT EXISTS GradesSummary (
+                id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                semester_id INTEGER NOT NULL,
+                student_id INTEGER NOT NULL,
+                position INTEGER NOT NULL,
+                subject TEXT NOT NULL,
+                predicted_grade TEXT NOT NULL,
+                final_grade TEXT NOT NULL,
+                proposed_points TEXT NOT NULL,
+                final_points TEXT NOT NULL,
+                points_sum TEXT NOT NULL,
+                average REAL NOT NULL
+            )
+        """)
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration15.kt

@@ -0,0 +1,19 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration15 : Migration(14, 15) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("""
+            CREATE TABLE IF NOT EXISTS MobileDevices (
+                id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                student_id INTEGER NOT NULL,
+                device_id INTEGER NOT NULL,
+                name TEXT NOT NULL,
+                date INTEGER NOT NULL
+            )
+        """)
+    }
+}

app/src/main/java/io/github/wulkanowy/data/pojos/MobileDeviceToken.kt

@@ -0,0 +1,12 @@
+package io.github.wulkanowy.data.pojos
+
+data class MobileDeviceToken(
+
+    val token: String,
+
+    val symbol: String,
+
+    val pin: String,
+
+    val qr: String
+)

app/src/main/java/io/github/wulkanowy/data/repositories/gradessummary/GradeSummaryRemote.kt

@@ -18,9 +18,14 @@ class GradeSummaryRemote @Inject constructor(private val api: Api) {
                     GradeSummary(
                         semesterId = semester.semesterId,
                         studentId = semester.studentId,
+                        position = it.order,
                         subject = it.name,
                         predictedGrade = it.predicted,
-                        finalGrade = it.final
+                        finalGrade = it.final,
+                        pointsSum = it.pointsSum,
+                        proposedPoints = it.proposedPoints,
+                        finalPoints = it.finalPoints,
+                        average = it.average
                     )
                 }
             }

app/src/main/java/io/github/wulkanowy/data/repositories/mobiledevice/MobileDeviceLocal.kt

@@ -0,0 +1,25 @@
+package io.github.wulkanowy.data.repositories.mobiledevice
+
+import io.github.wulkanowy.data.db.dao.MobileDeviceDao
+import io.github.wulkanowy.data.db.entities.MobileDevice
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.data.db.entities.Student
+import io.reactivex.Maybe
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class MobileDeviceLocal @Inject constructor(private val mobileDb: MobileDeviceDao) {
+
+    fun saveDevices(devices: List<MobileDevice>) {
+        mobileDb.insertAll(devices)
+    }
+
+    fun deleteDevices(devices: List<MobileDevice>) {
+        mobileDb.deleteAll(devices)
+    }
+
+    fun getDevices(semester: Semester): Maybe<List<MobileDevice>> {
+        return mobileDb.loadAll(semester.studentId).filter { it.isNotEmpty() }
+    }
+}

app/src/main/java/io/github/wulkanowy/data/repositories/mobiledevice/MobileDeviceRemote.kt

@@ -0,0 +1,47 @@
+package io.github.wulkanowy.data.repositories.mobiledevice
+
+import io.github.wulkanowy.api.Api
+import io.github.wulkanowy.data.db.entities.MobileDevice
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.data.pojos.MobileDeviceToken
+import io.github.wulkanowy.utils.toLocalDateTime
+import io.reactivex.Single
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class MobileDeviceRemote @Inject constructor(private val api: Api) {
+
+    fun getDevices(semester: Semester): Single<List<MobileDevice>> {
+        return Single.just(api.apply { diaryId = semester.diaryId })
+            .flatMap { api.getRegisteredDevices() }
+            .map { devices ->
+                devices.map {
+                    MobileDevice(
+                        studentId = semester.studentId,
+                        date = it.date.toLocalDateTime(),
+                        deviceId = it.id,
+                        name = it.name
+                    )
+                }
+            }
+    }
+
+    fun unregisterDevice(semester: Semester, device: MobileDevice): Single<Boolean> {
+        return Single.just(api.apply { diaryId = semester.diaryId })
+            .flatMap { api.unregisterDevice(device.deviceId) }
+    }
+
+    fun getToken(semester: Semester): Single<MobileDeviceToken> {
+        return Single.just(api.apply { diaryId = semester.diaryId })
+            .flatMap { api.getToken() }
+            .map {
+                MobileDeviceToken(
+                    token = it.token,
+                    symbol = it.symbol,
+                    pin = it.pin,
+                    qr = it.qrCodeImage
+                )
+            }
+    }
+}

app/src/main/java/io/github/wulkanowy/data/repositories/mobiledevice/MobileDeviceRepository.kt

@@ -0,0 +1,52 @@
+package io.github.wulkanowy.data.repositories.mobiledevice
+
+import com.github.pwittchen.reactivenetwork.library.rx2.ReactiveNetwork
+import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingSettings
+import io.github.wulkanowy.data.db.entities.MobileDevice
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.data.pojos.MobileDeviceToken
+import io.github.wulkanowy.utils.uniqueSubtract
+import io.reactivex.Single
+import java.net.UnknownHostException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class MobileDeviceRepository @Inject constructor(
+    private val settings: InternetObservingSettings,
+    private val local: MobileDeviceLocal,
+    private val remote: MobileDeviceRemote
+) {
+
+    fun getDevices(semester: Semester, forceRefresh: Boolean = false): Single<List<MobileDevice>> {
+        return local.getDevices(semester).filter { !forceRefresh }
+            .switchIfEmpty(ReactiveNetwork.checkInternetConnectivity(settings)
+                .flatMap {
+                    if (it) remote.getDevices(semester)
+                    else Single.error(UnknownHostException())
+                }.flatMap { new ->
+                    local.getDevices(semester).toSingle(emptyList())
+                        .doOnSuccess { old ->
+                            local.deleteDevices(old uniqueSubtract new)
+                            local.saveDevices(new uniqueSubtract old)
+                        }
+                }
+            ).flatMap { local.getDevices(semester).toSingle(emptyList()) }
+    }
+
+    fun unregisterDevice(semester: Semester, device: MobileDevice): Single<Boolean> {
+        return ReactiveNetwork.checkInternetConnectivity(settings)
+            .flatMap {
+                if (it) remote.unregisterDevice(semester, device)
+                else Single.error(UnknownHostException())
+            }
+    }
+
+    fun getToken(semester: Semester): Single<MobileDeviceToken> {
+        return ReactiveNetwork.checkInternetConnectivity(settings)
+            .flatMap {
+                if (it) remote.getToken(semester)
+                else Single.error(UnknownHostException())
+            }
+    }
+}

app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt

@@ -20,6 +20,9 @@ class PreferencesRepository @Inject constructor(
     val gradeAverageMode: String
         get() = sharedPref.getString(context.getString(R.string.pref_key_grade_average_mode), "only_one_semester") ?: "only_one_semester"
 
+    val gradeAverageForceCalc: Boolean
+        get() = sharedPref.getBoolean(context.getString(R.string.pref_key_grade_average_force_calc), false)
+
     val isGradeExpandable: Boolean
         get() = !sharedPref.getBoolean(context.getString(R.string.pref_key_expand_grade), false)
 
@@ -40,7 +43,7 @@ class PreferencesRepository @Inject constructor(
 
     val servicesOnlyWifiKey: String = context.getString(R.string.pref_key_services_wifi_only)
     val isServicesOnlyWifi: Boolean
-        get() = sharedPref.getBoolean(servicesOnlyWifiKey, true)
+        get() = sharedPref.getBoolean(servicesOnlyWifiKey, false)
 
     val isNotificationsEnable: Boolean
         get() = sharedPref.getBoolean(context.getString(R.string.pref_key_notifications_enable), true)

app/src/main/java/io/github/wulkanowy/data/repositories/timetable/TimetableRepository.kt

@@ -32,10 +32,11 @@ class TimetableRepository @Inject constructor(
                         .doOnSuccess { old ->
                             local.deleteTimetable(old.uniqueSubtract(new))
                             local.saveTimetable(new.uniqueSubtract(old).map { item ->
-                                item.apply {
-                                    old.singleOrNull { this.start == it.start }?.let {
-                                        return@map copy(
-                                            room = if (room.isEmpty()) it.room else room
+                                item.also { new ->
+                                    old.singleOrNull { new.start == it.start }?.let { old ->
+                                        return@map new.copy(
+                                            room = if (new.room.isEmpty()) old.room else new.room,
+                                            teacher = if (new.teacher.isEmpty() && !new.changes) old.teacher else new.teacher
                                         )
                                     }
                                 }

app/src/main/java/io/github/wulkanowy/di/AppComponent.kt

@@ -14,7 +14,7 @@ import javax.inject.Singleton
     AppModule::class,
     RepositoryModule::class,
     ServicesModule::class,
-    BuilderModule::class])
+    BindingModule::class])
 interface AppComponent : AndroidInjector<WulkanowyApp> {
 
     @Component.Factory

app/src/main/java/io/github/wulkanowy/di/AppModule.kt

@@ -2,15 +2,13 @@ package io.github.wulkanowy.di
 
 import android.appwidget.AppWidgetManager
 import android.content.Context
-import com.google.firebase.analytics.FirebaseAnalytics
 import dagger.Module
 import dagger.Provides
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
-import io.github.wulkanowy.BuildConfig.DEBUG
 import io.github.wulkanowy.WulkanowyApp
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.SchedulersProvider
-import javax.inject.Named
 import javax.inject.Singleton
 
 @Module
@@ -27,16 +25,11 @@ internal class AppModule {
     @Provides
     fun provideFlexibleAdapter() = FlexibleAdapter<AbstractFlexibleItem<*>>(null, null, true)
 
-    @Singleton
-    @Provides
-    fun provideFirebaseAnalytics(context: Context) = FirebaseAnalytics.getInstance(context)
-
     @Singleton
     @Provides
     fun provideAppWidgetManager(context: Context): AppWidgetManager = AppWidgetManager.getInstance(context)
 
     @Singleton
-    @Named("isDebug")
     @Provides
-    fun provideIsDebug() = DEBUG
+    fun provideAppInfo() = AppInfo()
 }

app/src/main/java/io/github/wulkanowy/di/BindingModule.kt

@@ -6,16 +6,17 @@ import io.github.wulkanowy.di.scopes.PerActivity
 import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.ui.modules.login.LoginModule
 import io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetConfigureActivity
+import io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetProvider
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainModule
 import io.github.wulkanowy.ui.modules.message.send.SendMessageActivity
 import io.github.wulkanowy.ui.modules.splash.SplashActivity
-import io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetProvider
 import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetConfigureActivity
 import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetProvider
 
+@Suppress("unused")
 @Module
-internal abstract class BuilderModule {
+internal abstract class BindingModule {
 
     @PerActivity
     @ContributesAndroidInjector

app/src/main/java/io/github/wulkanowy/services/ServicesModule.kt

@@ -1,8 +1,6 @@
 package io.github.wulkanowy.services
 
-import android.app.NotificationManager
 import android.content.Context
-import android.content.Context.NOTIFICATION_SERVICE
 import androidx.core.app.NotificationManagerCompat
 import androidx.work.WorkManager
 import com.squareup.inject.assisted.dagger2.AssistedModule
@@ -28,6 +26,7 @@ import io.github.wulkanowy.services.sync.works.Work
 import io.github.wulkanowy.services.widgets.TimetableWidgetService
 import javax.inject.Singleton
 
+@Suppress("unused")
 @AssistedModule
 @Module(includes = [AssistedInject_ServicesModule::class])
 abstract class ServicesModule {
@@ -37,17 +36,12 @@ abstract class ServicesModule {
 
         @JvmStatic
         @Provides
-        fun provideWorkManager() = WorkManager.getInstance()
+        fun provideWorkManager(context: Context) = WorkManager.getInstance(context)
 
         @JvmStatic
         @Singleton
         @Provides
-        fun provideNotificationManagerCompat(context: Context) = NotificationManagerCompat.from(context)
-
-        @JvmStatic
-        @Singleton
-        @Provides
-        fun provideNotificationManager(context: Context) = context.getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+        fun provideNotificationManager(context: Context) = NotificationManagerCompat.from(context)
     }
 
     @ContributesAndroidInjector

app/src/main/java/io/github/wulkanowy/services/sync/SyncManager.kt

@@ -6,44 +6,59 @@ import androidx.work.BackoffPolicy.EXPONENTIAL
 import androidx.work.Constraints
 import androidx.work.ExistingPeriodicWorkPolicy.KEEP
 import androidx.work.ExistingPeriodicWorkPolicy.REPLACE
-import androidx.work.NetworkType.METERED
+import androidx.work.NetworkType.CONNECTED
 import androidx.work.NetworkType.UNMETERED
-import androidx.work.PeriodicWorkRequest
+import androidx.work.PeriodicWorkRequestBuilder
 import androidx.work.WorkManager
+import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.services.sync.channels.DebugChannel
 import io.github.wulkanowy.services.sync.channels.NewEntriesChannel
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.isHolidays
 import org.threeten.bp.LocalDate.now
 import timber.log.Timber
 import java.util.concurrent.TimeUnit.MINUTES
 import javax.inject.Inject
-import javax.inject.Named
 import javax.inject.Singleton
 
 @Singleton
 class SyncManager @Inject constructor(
     private val workManager: WorkManager,
     private val preferencesRepository: PreferencesRepository,
+    sharedPrefProvider: SharedPrefProvider,
     newEntriesChannel: NewEntriesChannel,
     debugChannel: DebugChannel,
-    @Named("isDebug") isDebug: Boolean
+    appInfo: AppInfo
 ) {
 
+    companion object {
+        private const val APP_VERSION_CODE_KEY = "app_version_code"
+    }
+
     init {
-        if (SDK_INT >= O) newEntriesChannel.create()
-        if (SDK_INT >= O && isDebug) debugChannel.create()
         if (now().isHolidays) stopSyncWorker()
+
+        if (SDK_INT > O) {
+            newEntriesChannel.create()
+            if (appInfo.isDebug) debugChannel.create()
+        }
+
+        if (sharedPrefProvider.getLong(APP_VERSION_CODE_KEY, -1L) != appInfo.versionCode.toLong()) {
+            startSyncWorker(true)
+            sharedPrefProvider.putLong(APP_VERSION_CODE_KEY, appInfo.versionCode.toLong(), true)
+        }
         Timber.i("SyncManager was initialized")
     }
 
     fun startSyncWorker(restart: Boolean = false) {
         if (preferencesRepository.isServiceEnabled && !now().isHolidays) {
             workManager.enqueueUniquePeriodicWork(SyncWorker::class.java.simpleName, if (restart) REPLACE else KEEP,
-                PeriodicWorkRequest.Builder(SyncWorker::class.java, preferencesRepository.servicesInterval, MINUTES, 10, MINUTES)
+                PeriodicWorkRequestBuilder<SyncWorker>(preferencesRepository.servicesInterval, MINUTES)
+                    .setInitialDelay(10, MINUTES)
                     .setBackoffCriteria(EXPONENTIAL, 30, MINUTES)
                     .setConstraints(Constraints.Builder()
-                        .setRequiredNetworkType(if (preferencesRepository.isServicesOnlyWifi) METERED else UNMETERED)
+                        .setRequiredNetworkType(if (preferencesRepository.isServicesOnlyWifi) UNMETERED else CONNECTED)
                         .build())
                     .build())
         }

app/src/main/java/io/github/wulkanowy/services/sync/SyncWorker.kt

@@ -64,7 +64,7 @@ class SyncWorker @AssistedInject constructor(
     private fun notify(result: Result) {
         notificationManager.notify(Random.nextInt(Int.MAX_VALUE), NotificationCompat.Builder(applicationContext, DebugChannel.CHANNEL_ID)
             .setContentTitle("Debug notification")
-            .setSmallIcon(R.drawable.ic_more_settings_24dp)
+            .setSmallIcon(R.drawable.ic_more_settings)
             .setAutoCancel(true)
             .setColor(applicationContext.getCompatColor(R.color.colorPrimary))
             .setStyle(BigTextStyle().bigText("${SyncWorker::class.java.simpleName} result: $result"))

app/src/main/java/io/github/wulkanowy/services/sync/channels/DebugChannel.kt

@@ -3,15 +3,15 @@ package io.github.wulkanowy.services.sync.channels
 import android.annotation.TargetApi
 import android.app.Notification.VISIBILITY_PUBLIC
 import android.app.NotificationChannel
-import android.app.NotificationManager
 import android.app.NotificationManager.IMPORTANCE_DEFAULT
 import android.content.Context
+import androidx.core.app.NotificationManagerCompat
 import io.github.wulkanowy.R
 import javax.inject.Inject
 
 @TargetApi(26)
 class DebugChannel @Inject constructor(
-    private val notificationManager: NotificationManager,
+    private val notificationManager: NotificationManagerCompat,
     private val context: Context
 ) {
 
@@ -21,8 +21,9 @@ class DebugChannel @Inject constructor(
 
     fun create() {
         notificationManager.createNotificationChannel(
-            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_debug), IMPORTANCE_DEFAULT).apply {
-                lockscreenVisibility = VISIBILITY_PUBLIC
-            })
+            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_debug), IMPORTANCE_DEFAULT)
+                .apply {
+                    lockscreenVisibility = VISIBILITY_PUBLIC
+                })
     }
 }

app/src/main/java/io/github/wulkanowy/services/sync/channels/NewEntriesChannel.kt

@@ -3,15 +3,15 @@ package io.github.wulkanowy.services.sync.channels
 import android.annotation.TargetApi
 import android.app.Notification.VISIBILITY_PUBLIC
 import android.app.NotificationChannel
-import android.app.NotificationManager
 import android.app.NotificationManager.IMPORTANCE_HIGH
 import android.content.Context
+import androidx.core.app.NotificationManagerCompat
 import io.github.wulkanowy.R
 import javax.inject.Inject
 
 @TargetApi(26)
 class NewEntriesChannel @Inject constructor(
-    private val notificationManager: NotificationManager,
+    private val notificationManager: NotificationManagerCompat,
     private val context: Context
 ) {
 
@@ -21,10 +21,11 @@ class NewEntriesChannel @Inject constructor(
 
     fun create() {
         notificationManager.createNotificationChannel(
-            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_new_entries), IMPORTANCE_HIGH).apply {
-                enableLights(true)
-                enableVibration(true)
-                lockscreenVisibility = VISIBILITY_PUBLIC
-            })
+            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_new_entries), IMPORTANCE_HIGH)
+                .apply {
+                    enableLights(true)
+                    enableVibration(true)
+                    lockscreenVisibility = VISIBILITY_PUBLIC
+                })
     }
 }

app/src/main/java/io/github/wulkanowy/services/sync/works/GradeWork.kt

@@ -15,7 +15,7 @@ import io.github.wulkanowy.data.repositories.grade.GradeRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.services.sync.channels.NewEntriesChannel
 import io.github.wulkanowy.ui.modules.main.MainActivity
-import io.github.wulkanowy.ui.modules.main.MainView.MenuView
+import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.getCompatColor
 import io.reactivex.Completable
 import javax.inject.Inject
@@ -41,14 +41,14 @@ class GradeWork @Inject constructor(
         notificationManager.notify(Random.nextInt(Int.MAX_VALUE), NotificationCompat.Builder(context, NewEntriesChannel.CHANNEL_ID)
             .setContentTitle(context.resources.getQuantityString(R.plurals.grade_new_items, grades.size, grades.size))
             .setContentText(context.resources.getQuantityString(R.plurals.grade_notify_new_items, grades.size, grades.size))
-            .setSmallIcon(R.drawable.ic_stat_notify_grade)
+            .setSmallIcon(R.drawable.ic_stat_grade)
             .setAutoCancel(true)
             .setPriority(PRIORITY_HIGH)
             .setDefaults(DEFAULT_ALL)
             .setColor(context.getCompatColor(R.color.colorPrimary))
             .setContentIntent(
-                PendingIntent.getActivity(context, MenuView.GRADE.id,
-                    MainActivity.getStartIntent(context, MenuView.GRADE, true), FLAG_UPDATE_CURRENT))
+                PendingIntent.getActivity(context, MainView.Section.GRADE.id,
+                    MainActivity.getStartIntent(context, MainView.Section.GRADE, true), FLAG_UPDATE_CURRENT))
             .setStyle(NotificationCompat.InboxStyle().run {
                 setSummaryText(context.resources.getQuantityString(R.plurals.grade_number_item, grades.size, grades.size))
                 grades.forEach { addLine("${it.subject}: ${it.entry}") }

app/src/main/java/io/github/wulkanowy/services/sync/works/LuckyNumberWork.kt

@@ -15,7 +15,7 @@ import io.github.wulkanowy.data.repositories.luckynumber.LuckyNumberRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.services.sync.channels.NewEntriesChannel
 import io.github.wulkanowy.ui.modules.main.MainActivity
-import io.github.wulkanowy.ui.modules.main.MainView.MenuView
+import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.getCompatColor
 import io.reactivex.Completable
 import javax.inject.Inject
@@ -41,14 +41,14 @@ class LuckyNumberWork @Inject constructor(
         notificationManager.notify(Random.nextInt(Int.MAX_VALUE), NotificationCompat.Builder(context, NewEntriesChannel.CHANNEL_ID)
             .setContentTitle(context.getString(R.string.lucky_number_notify_new_item_title))
             .setContentText(context.getString(R.string.lucky_number_notify_new_item, luckyNumber.luckyNumber))
-            .setSmallIcon(R.drawable.ic_stat_notify_lucky_number)
+            .setSmallIcon(R.drawable.ic_stat_luckynumber)
             .setAutoCancel(true)
             .setDefaults(DEFAULT_ALL)
             .setPriority(PRIORITY_HIGH)
             .setColor(context.getCompatColor(R.color.colorPrimary))
             .setContentIntent(
-                PendingIntent.getActivity(context, MenuView.MESSAGE.id,
-                    MainActivity.getStartIntent(context, MenuView.LUCKY_NUMBER, true), FLAG_UPDATE_CURRENT))
+                PendingIntent.getActivity(context, MainView.Section.MESSAGE.id,
+                    MainActivity.getStartIntent(context, MainView.Section.LUCKY_NUMBER, true), FLAG_UPDATE_CURRENT))
             .build())
     }
 }

app/src/main/java/io/github/wulkanowy/services/sync/works/MessageWork.kt

@@ -16,7 +16,7 @@ import io.github.wulkanowy.data.repositories.message.MessageRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.services.sync.channels.NewEntriesChannel
 import io.github.wulkanowy.ui.modules.main.MainActivity
-import io.github.wulkanowy.ui.modules.main.MainView.MenuView
+import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.getCompatColor
 import io.reactivex.Completable
 import javax.inject.Inject
@@ -42,14 +42,14 @@ class MessageWork @Inject constructor(
         notificationManager.notify(Random.nextInt(Int.MAX_VALUE), NotificationCompat.Builder(context, NewEntriesChannel.CHANNEL_ID)
             .setContentTitle(context.resources.getQuantityString(R.plurals.message_new_items, messages.size, messages.size))
             .setContentText(context.resources.getQuantityString(R.plurals.message_notify_new_items, messages.size, messages.size))
-            .setSmallIcon(R.drawable.ic_stat_notify_message)
+            .setSmallIcon(R.drawable.ic_stat_message)
             .setAutoCancel(true)
             .setDefaults(DEFAULT_ALL)
             .setPriority(PRIORITY_HIGH)
             .setColor(context.getCompatColor(R.color.colorPrimary))
             .setContentIntent(
-                PendingIntent.getActivity(context, MenuView.MESSAGE.id,
-                    MainActivity.getStartIntent(context, MenuView.MESSAGE, true), FLAG_UPDATE_CURRENT)
+                PendingIntent.getActivity(context, MainView.Section.MESSAGE.id,
+                    MainActivity.getStartIntent(context, MainView.Section.MESSAGE, true), FLAG_UPDATE_CURRENT)
             )
             .setStyle(NotificationCompat.InboxStyle().run {
                 setSummaryText(context.resources.getQuantityString(R.plurals.message_number_item, messages.size, messages.size))

app/src/main/java/io/github/wulkanowy/services/sync/works/NoteWork.kt

@@ -15,7 +15,7 @@ import io.github.wulkanowy.data.repositories.note.NoteRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.services.sync.channels.NewEntriesChannel
 import io.github.wulkanowy.ui.modules.main.MainActivity
-import io.github.wulkanowy.ui.modules.main.MainView.MenuView
+import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.getCompatColor
 import io.reactivex.Completable
 import javax.inject.Inject
@@ -41,14 +41,14 @@ class NoteWork @Inject constructor(
         notificationManager.notify(Random.nextInt(Int.MAX_VALUE), NotificationCompat.Builder(context, NewEntriesChannel.CHANNEL_ID)
             .setContentTitle(context.resources.getQuantityString(R.plurals.note_new_items, notes.size, notes.size))
             .setContentText(context.resources.getQuantityString(R.plurals.note_notify_new_items, notes.size, notes.size))
-            .setSmallIcon(R.drawable.ic_stat_notify_note)
+            .setSmallIcon(R.drawable.ic_stat_note)
             .setAutoCancel(true)
             .setDefaults(DEFAULT_ALL)
             .setPriority(PRIORITY_HIGH)
             .setColor(context.getCompatColor(R.color.colorPrimary))
             .setContentIntent(
-                PendingIntent.getActivity(context, MenuView.NOTE.id,
-                    MainActivity.getStartIntent(context, MenuView.NOTE, true), FLAG_UPDATE_CURRENT))
+                PendingIntent.getActivity(context, MainView.Section.NOTE.id,
+                    MainActivity.getStartIntent(context, MainView.Section.NOTE, true), FLAG_UPDATE_CURRENT))
             .setStyle(NotificationCompat.InboxStyle().run {
                 setSummaryText(context.resources.getQuantityString(R.plurals.note_number_item, notes.size, notes.size))
                 notes.forEach { addLine("${it.teacher}: ${it.category}") }

app/src/main/java/io/github/wulkanowy/services/widgets/TimetableWidgetService.kt

@@ -3,7 +3,7 @@ package io.github.wulkanowy.services.widgets
 import android.content.Intent
 import android.widget.RemoteViewsService
 import dagger.android.AndroidInjection
-import io.github.wulkanowy.data.db.SharedPrefHelper
+import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.repositories.semester.SemesterRepository
 import io.github.wulkanowy.data.repositories.student.StudentRepository
 import io.github.wulkanowy.data.repositories.timetable.TimetableRepository
@@ -23,7 +23,7 @@ class TimetableWidgetService : RemoteViewsService() {
     lateinit var semesterRepo: SemesterRepository
 
     @Inject
-    lateinit var sharedPref: SharedPrefHelper
+    lateinit var sharedPref: SharedPrefProvider
 
     @Inject
     lateinit var schedulers: SchedulersProvider

app/src/main/java/io/github/wulkanowy/ui/base/BaseActivity.kt

@@ -1,24 +1,31 @@
 package io.github.wulkanowy.ui.base
 
+import android.app.ActivityManager
+import android.os.Build.VERSION.SDK_INT
+import android.os.Build.VERSION_CODES.LOLLIPOP
+import android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK
+import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
 import android.os.Bundle
 import android.view.View
 import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.fragment.app.Fragment
 import com.google.android.material.snackbar.Snackbar
 import com.google.android.material.snackbar.Snackbar.LENGTH_LONG
 import dagger.android.AndroidInjection
 import dagger.android.DispatchingAndroidInjector
-import dagger.android.support.HasSupportFragmentInjector
+import dagger.android.HasAndroidInjector
 import io.github.wulkanowy.R
+import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.utils.FragmentLifecycleLogger
+import io.github.wulkanowy.utils.getThemeAttrColor
 import javax.inject.Inject
 
-abstract class BaseActivity : AppCompatActivity(), BaseView, HasSupportFragmentInjector {
+abstract class BaseActivity<T : BasePresenter<out BaseView>> : AppCompatActivity(), BaseView, HasAndroidInjector {
 
     @Inject
-    lateinit var supportFragmentInjector: DispatchingAndroidInjector<Fragment>
+    lateinit var androidInjector: DispatchingAndroidInjector<Any>
 
     @Inject
     lateinit var fragmentLifecycleLogger: FragmentLifecycleLogger
@@ -28,12 +35,19 @@ abstract class BaseActivity : AppCompatActivity(), BaseView, HasSupportFragmentI
 
     protected var messageContainer: View? = null
 
+    abstract var presenter: T
+
     public override fun onCreate(savedInstanceState: Bundle?) {
         AndroidInjection.inject(this)
-        themeManager.applyTheme(this)
+        themeManager.applyActivityTheme(this)
         super.onCreate(savedInstanceState)
         supportFragmentManager.registerFragmentLifecycleCallbacks(fragmentLifecycleLogger, true)
         AppCompatDelegate.setCompatVectorFromResourcesEnabled(true)
+
+        if (SDK_INT >= LOLLIPOP) {
+            @Suppress("DEPRECATION")
+            setTaskDescription(ActivityManager.TaskDescription(null, null, getThemeAttrColor(R.attr.colorSurface)))
+        }
     }
 
     override fun showError(text: String, error: Throwable) {
@@ -51,10 +65,25 @@ abstract class BaseActivity : AppCompatActivity(), BaseView, HasSupportFragmentI
         else Toast.makeText(this, text, Toast.LENGTH_LONG).show()
     }
 
+    override fun showExpiredDialog() {
+        AlertDialog.Builder(this)
+            .setTitle(R.string.main_session_expired)
+            .setMessage(R.string.main_session_relogin)
+            .setPositiveButton(R.string.main_log_in) { _, _ -> presenter.onExpiredLoginSelected() }
+            .setNegativeButton(android.R.string.cancel) { _, _ -> }
+            .show()
+    }
+
+    override fun openClearLoginView() {
+        startActivity(LoginActivity.getStartIntent(this)
+            .apply { addFlags(FLAG_ACTIVITY_CLEAR_TASK or FLAG_ACTIVITY_NEW_TASK) })
+    }
+
     override fun onDestroy() {
         super.onDestroy()
         invalidateOptionsMenu()
+        presenter.onDetachView()
     }
 
-    override fun supportFragmentInjector() = supportFragmentInjector
+    override fun androidInjector() = androidInjector
 }

app/src/main/java/io/github/wulkanowy/ui/base/BaseFragment.kt

@@ -18,7 +18,7 @@ abstract class BaseFragment : DaggerFragment(), BaseView {
                 }
                 .show()
         } else {
-            (activity as? BaseActivity)?.showError(text, error)
+            (activity as? BaseActivity<*>)?.showError(text, error)
         }
     }
 
@@ -26,7 +26,15 @@ abstract class BaseFragment : DaggerFragment(), BaseView {
         if (messageContainer != null) {
             Snackbar.make(messageContainer!!, text, LENGTH_LONG).show()
         } else {
-            (activity as? BaseActivity)?.showMessage(text)
+            (activity as? BaseActivity<*>)?.showMessage(text)
         }
     }
+
+    override fun showExpiredDialog() {
+        (activity as? BaseActivity<*>)?.showExpiredDialog()
+    }
+
+    override fun openClearLoginView() {
+        (activity as? BaseActivity<*>)?.openClearLoginView()
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/base/BaseFragmentPagerAdapter.kt

@@ -4,14 +4,15 @@ import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.FragmentPagerAdapter
 
-class BaseFragmentPagerAdapter(private val fragmentManager: FragmentManager) : FragmentPagerAdapter(fragmentManager) {
+class BaseFragmentPagerAdapter(private val fragmentManager: FragmentManager) :
+    FragmentPagerAdapter(fragmentManager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
 
     private val pages = mutableMapOf<Fragment, String?>()
 
     var containerId = 0
 
     fun getFragmentInstance(position: Int): Fragment? {
-        if (containerId == 0) throw IllegalArgumentException("Container id is 0")
+        require(containerId != 0) { "Container id is 0" }
         return fragmentManager.findFragmentByTag("android:switcher:$containerId:$position")
     }
 

app/src/main/java/io/github/wulkanowy/ui/base/BasePresenter.kt

@@ -1,8 +1,16 @@
 package io.github.wulkanowy.ui.base
 
+import io.github.wulkanowy.data.repositories.student.StudentRepository
+import io.github.wulkanowy.utils.SchedulersProvider
+import io.reactivex.Completable
 import io.reactivex.disposables.CompositeDisposable
+import timber.log.Timber
 
-open class BasePresenter<T : BaseView>(private val errorHandler: ErrorHandler) {
+open class BasePresenter<T : BaseView>(
+    protected val errorHandler: ErrorHandler,
+    protected val studentRepository: StudentRepository,
+    protected val schedulers: SchedulersProvider
+) {
 
     val disposable = CompositeDisposable()
 
@@ -10,7 +18,33 @@ open class BasePresenter<T : BaseView>(private val errorHandler: ErrorHandler) {
 
     open fun onAttachView(view: T) {
         this.view = view
-        errorHandler.showErrorMessage = { text, error -> view.showError(text, error) }
+        errorHandler.apply {
+            showErrorMessage = view::showError
+            onSessionExpired = view::showExpiredDialog
+            onNoCurrentStudent = view::openClearLoginView
+        }
+    }
+
+    fun onExpiredLoginSelected() {
+        Timber.i("Attempt to switch the student after the session expires")
+        disposable.add(studentRepository.getCurrentStudent(false)
+            .flatMapCompletable { studentRepository.logoutStudent(it) }
+            .andThen(studentRepository.getSavedStudents(false))
+            .flatMapCompletable {
+                if (it.isNotEmpty()) {
+                    Timber.i("Switching current student")
+                    studentRepository.switchStudent(it[0])
+                } else Completable.complete()
+            }
+            .subscribeOn(schedulers.backgroundThread)
+            .observeOn(schedulers.mainThread)
+            .subscribe({
+                Timber.i("Switch student result: Open login view")
+                view?.openClearLoginView()
+            }, {
+                Timber.i("Switch student result: An exception occurred")
+                errorHandler.dispatch(it)
+            }))
     }
 
     open fun onDetachView() {

app/src/main/java/io/github/wulkanowy/ui/base/BaseView.kt

@@ -5,4 +5,8 @@ interface BaseView {
     fun showError(text: String, error: Throwable)
 
     fun showMessage(text: String)
+
+    fun showExpiredDialog()
+
+    fun openClearLoginView()
 }

app/src/main/java/io/github/wulkanowy/ui/base/ErrorDialog.kt

@@ -2,13 +2,13 @@ package io.github.wulkanowy.ui.base
 
 import android.content.ClipData
 import android.content.ClipboardManager
-import android.content.Context.CLIPBOARD_SERVICE
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
 import android.widget.Toast.LENGTH_LONG
+import androidx.core.content.getSystemService
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.R
 import kotlinx.android.synthetic.main.dialog_error.*
@@ -49,7 +49,7 @@ class ErrorDialog : DialogFragment() {
             errorDialogContent.text = writer.toString()
             errorDialogCopy.setOnClickListener {
                 ClipData.newPlainText("wulkanowyError", writer.toString()).let { clip ->
-                    (activity?.getSystemService(CLIPBOARD_SERVICE) as? ClipboardManager)?.primaryClip = clip
+                    activity?.getSystemService<ClipboardManager>()?.primaryClip = clip
                 }
                 Toast.makeText(context, R.string.all_copied, LENGTH_LONG).show()
             }

app/src/main/java/io/github/wulkanowy/ui/base/ErrorHandler.kt

@@ -5,7 +5,10 @@ import com.readystatesoftware.chuck.api.ChuckCollector
 import io.github.wulkanowy.R
 import io.github.wulkanowy.api.interceptor.FeatureDisabledException
 import io.github.wulkanowy.api.interceptor.ServiceUnavailableException
+import io.github.wulkanowy.api.login.BadCredentialsException
 import io.github.wulkanowy.api.login.NotLoggedInException
+import io.github.wulkanowy.data.exceptions.NoCurrentStudentException
+import io.github.wulkanowy.utils.security.ScramblerException
 import timber.log.Timber
 import java.net.SocketTimeoutException
 import java.net.UnknownHostException
@@ -15,6 +18,10 @@ open class ErrorHandler @Inject constructor(protected val resources: Resources,
 
     var showErrorMessage: (String, Throwable) -> Unit = { _, _ -> }
 
+    var onSessionExpired: () -> Unit = {}
+
+    var onNoCurrentStudent: () -> Unit = {}
+
     fun dispatch(error: Throwable) {
         chuckCollector.onError(error.javaClass.simpleName, error)
         Timber.e(error, "An exception occurred while the Wulkanowy was running")
@@ -22,17 +29,23 @@ open class ErrorHandler @Inject constructor(protected val resources: Resources,
     }
 
     protected open fun proceed(error: Throwable) {
-        showErrorMessage((when (error) {
-            is UnknownHostException -> resources.getString(R.string.error_no_internet)
-            is SocketTimeoutException -> resources.getString(R.string.error_timeout)
-            is NotLoggedInException -> resources.getString(R.string.error_login_failed)
-            is ServiceUnavailableException -> resources.getString(R.string.error_service_unavailable)
-            is FeatureDisabledException -> resources.getString(R.string.error_feature_disabled)
-            else -> resources.getString(R.string.error_unknown)
-        }), error)
+        resources.run {
+            when (error) {
+                is UnknownHostException -> showErrorMessage(getString(R.string.error_no_internet), error)
+                is SocketTimeoutException -> showErrorMessage(getString(R.string.error_timeout), error)
+                is NotLoggedInException -> showErrorMessage(getString(R.string.error_login_failed), error)
+                is ServiceUnavailableException -> showErrorMessage(getString(R.string.error_service_unavailable), error)
+                is FeatureDisabledException -> showErrorMessage(getString(R.string.error_feature_disabled), error)
+                is ScramblerException, is BadCredentialsException -> onSessionExpired()
+                is NoCurrentStudentException -> onNoCurrentStudent()
+                else -> showErrorMessage(getString(R.string.error_unknown), error)
+            }
+        }
     }
 
     open fun clear() {
         showErrorMessage = { _, _ -> }
+        onSessionExpired = {}
+        onNoCurrentStudent = {}
     }
 }

app/src/main/java/io/github/wulkanowy/ui/base/ThemeManager.kt

@@ -2,29 +2,31 @@ package io.github.wulkanowy.ui.base
 
 import android.content.pm.PackageManager.GET_ACTIVITIES
 import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_NO
 import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_YES
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import javax.inject.Inject
+import javax.inject.Singleton
 
+@Singleton
 class ThemeManager @Inject constructor(private val preferencesRepository: PreferencesRepository) {
 
-    fun applyTheme(activity: AppCompatActivity) {
+    fun applyActivityTheme(activity: AppCompatActivity) {
         if (isThemeApplicable(activity)) {
-            activity.delegate.apply {
-                when (preferencesRepository.appTheme) {
-                    "light" -> setLocalNightMode(MODE_NIGHT_NO)
-                    "dark" -> setLocalNightMode(MODE_NIGHT_YES)
-                    "black" -> {
-                        setLocalNightMode(MODE_NIGHT_YES)
-                        activity.setTheme(R.style.WulkanowyTheme_Black)
-                    }
-                }
-            }
+            applyDefaultTheme()
+            if (preferencesRepository.appTheme == "black") activity.setTheme(R.style.WulkanowyTheme_Black)
         }
     }
 
+    fun applyDefaultTheme() {
+        AppCompatDelegate.setDefaultNightMode(
+            if (preferencesRepository.appTheme == "light") MODE_NIGHT_NO
+            else MODE_NIGHT_YES
+        )
+    }
+
     private fun isThemeApplicable(activity: AppCompatActivity): Boolean {
         return activity.packageManager.getPackageInfo(activity.packageName, GET_ACTIVITIES)
             .activities.singleOrNull { it.name == activity::class.java.canonicalName }?.theme

app/src/main/java/io/github/wulkanowy/ui/base/session/BaseSessionFragment.kt

@@ -1,21 +0,0 @@
-package io.github.wulkanowy.ui.base.session
-
-import android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK
-import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
-import io.github.wulkanowy.ui.base.BaseFragment
-import io.github.wulkanowy.ui.modules.login.LoginActivity
-import io.github.wulkanowy.ui.modules.main.MainActivity
-
-open class BaseSessionFragment : BaseFragment(), BaseSessionView {
-
-    override fun showExpiredDialog() {
-        (activity as? MainActivity)?.showExpiredDialog()
-    }
-
-    override fun openLoginView() {
-        activity?.also {
-            startActivity(LoginActivity.getStartIntent(it)
-                .apply { addFlags(FLAG_ACTIVITY_CLEAR_TASK or FLAG_ACTIVITY_NEW_TASK) })
-        }
-    }
-}

app/src/main/java/io/github/wulkanowy/ui/base/session/BaseSessionPresenter.kt

@@ -1,15 +0,0 @@
-package io.github.wulkanowy.ui.base.session
-
-import io.github.wulkanowy.ui.base.BasePresenter
-
-open class BaseSessionPresenter<T : BaseSessionView>(private val errorHandler: SessionErrorHandler) :
-    BasePresenter<T>(errorHandler) {
-
-    override fun onAttachView(view: T) {
-        super.onAttachView(view)
-        errorHandler.apply {
-            onDecryptionFail = { view.showExpiredDialog() }
-            onNoCurrentStudent = { view.openLoginView() }
-        }
-    }
-}

app/src/main/java/io/github/wulkanowy/ui/base/session/BaseSessionView.kt

@@ -1,10 +0,0 @@
-package io.github.wulkanowy.ui.base.session
-
-import io.github.wulkanowy.ui.base.BaseView
-
-interface BaseSessionView : BaseView {
-
-    fun showExpiredDialog()
-
-    fun openLoginView()
-}

app/src/main/java/io/github/wulkanowy/ui/base/session/SessionErrorHandler.kt

@@ -1,32 +0,0 @@
-package io.github.wulkanowy.ui.base.session
-
-import android.content.res.Resources
-import com.readystatesoftware.chuck.api.ChuckCollector
-import io.github.wulkanowy.data.exceptions.NoCurrentStudentException
-import io.github.wulkanowy.ui.base.ErrorHandler
-import io.github.wulkanowy.utils.security.ScramblerException
-import javax.inject.Inject
-
-open class SessionErrorHandler @Inject constructor(
-    resources: Resources,
-    chuckCollector: ChuckCollector
-) : ErrorHandler(resources, chuckCollector) {
-
-    var onDecryptionFail: () -> Unit = {}
-
-    var onNoCurrentStudent: () -> Unit = {}
-
-    override fun proceed(error: Throwable) {
-        when (error) {
-            is ScramblerException -> onDecryptionFail()
-            is NoCurrentStudentException -> onNoCurrentStudent()
-            else -> super.proceed(error)
-        }
-    }
-
-    override fun clear() {
-        super.clear()
-        onDecryptionFail = {}
-        onNoCurrentStudent = {}
-    }
-}

app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutFragment.kt

@@ -1,19 +1,29 @@
 package io.github.wulkanowy.ui.modules.about
 
 import android.content.Intent
+import android.content.Intent.ACTION_SENDTO
+import android.content.Intent.EXTRA_EMAIL
+import android.content.Intent.EXTRA_SUBJECT
+import android.content.Intent.EXTRA_TEXT
+import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import com.mikepenz.aboutlibraries.LibsBuilder
-import com.mikepenz.aboutlibraries.LibsFragmentCompat
-import io.github.wulkanowy.BuildConfig
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.R
 import io.github.wulkanowy.ui.base.BaseFragment
+import io.github.wulkanowy.ui.modules.about.license.LicenseFragment
+import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.AppInfo
+import io.github.wulkanowy.utils.getCompatDrawable
 import io.github.wulkanowy.utils.openInternetBrowser
-import io.github.wulkanowy.utils.withOnExtraListener
+import io.github.wulkanowy.utils.setOnItemClickListener
+import kotlinx.android.synthetic.main.fragment_about.*
 import javax.inject.Inject
 
 class AboutFragment : BaseFragment(), AboutView, MainView.TitledView {
@@ -22,60 +32,94 @@ class AboutFragment : BaseFragment(), AboutView, MainView.TitledView {
     lateinit var presenter: AboutPresenter
 
     @Inject
-    lateinit var fragmentCompat: LibsFragmentCompat
+    lateinit var aboutAdapter: FlexibleAdapter<AbstractFlexibleItem<*>>
+
+    @Inject
+    lateinit var appInfo: AppInfo
+
+    override val versionRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_version), "${appInfo.versionName} (${appInfo.versionCode})", getCompatDrawable(R.drawable.ic_all_about))
+        }
+
+    override val feedbackRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_feedback), getString(R.string.about_feedback_summary), getCompatDrawable(R.drawable.ic_about_feedback))
+        }
+
+    override val discordRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_discord), getString(R.string.about_discord_summary), getCompatDrawable(R.drawable.ic_about_discord))
+        }
+
+    override val homepageRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_homepage), getString(R.string.about_homepage_summary), getCompatDrawable(R.drawable.ic_about_homepage))
+        }
+
+    override val licensesRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_licenses), getString(R.string.about_licenses_summary), getCompatDrawable(R.drawable.ic_about_licenses))
+        }
+
+    override val privacyRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_privacy), getString(R.string.about_privacy_summary), getCompatDrawable(R.drawable.ic_about_privacy))
+        }
+
+    override val titleStringId get() = R.string.about_title
 
     companion object {
         fun newInstance() = AboutFragment()
     }
 
-    override val titleStringId: Int
-        get() = R.string.about_title
-
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        presenter.onAttachView(this)
-        return Bundle().apply {
-            putSerializable("data", LibsBuilder()
-                .withAboutAppName(getString(R.string.app_name))
-                .withAboutVersionShown(true)
-                .withAboutIconShown(true)
-                .withLicenseShown(true)
-                .withAboutSpecial1(getString(R.string.about_discord_invite))
-                .withAboutSpecial2(getString(R.string.about_homepage))
-                .withAboutSpecial3(getString(R.string.about_feedback))
-                .withFields(R.string::class.java.fields)
-                .withCheckCachedDetection(false)
-                .withExcludedLibraries("fastadapter", "AndroidIconics", "Jsoup", "Retrofit", "okio",
-                    "Butterknife", "CircleImageView")
-                .withOnExtraListener { presenter.onExtraSelect(it) })
-        }.let {
-            fragmentCompat.onCreateView(inflater.context, inflater, container, savedInstanceState, it)
-        }
+        return inflater.inflate(R.layout.fragment_about, container, false)
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        fragmentCompat.onViewCreated(view, savedInstanceState)
+        presenter.onAttachView(this)
     }
 
-    override fun openDiscordInviteView() {
+    override fun initView() {
+        aboutAdapter.setOnItemClickListener(presenter::onItemSelected)
+
+        with(aboutRecycler) {
+            layoutManager = SmoothScrollLinearLayoutManager(context)
+            adapter = aboutAdapter
+        }
+    }
+
+    override fun updateData(header: AboutScrollableHeader, items: List<AboutItem>) {
+        with(aboutAdapter) {
+            removeAllScrollableHeaders()
+            addScrollableHeader(header)
+            updateDataSet(items)
+        }
+    }
+
+    override fun openDiscordInvite() {
         context?.openInternetBrowser("https://discord.gg/vccAQBr", ::showMessage)
     }
 
-    override fun openHomepageWebView() {
+    override fun openHomepage() {
         context?.openInternetBrowser("https://wulkanowy.github.io/", ::showMessage)
     }
 
-    override fun openEmailClientView() {
-        val intent = Intent(Intent.ACTION_SENDTO).apply {
-            data = Uri.parse("mailto:")
-            putExtra(Intent.EXTRA_EMAIL, Array(1) { "wulkanowyinc@gmail.com" })
-            putExtra(Intent.EXTRA_SUBJECT, "Zgłoszenie błędu")
-            putExtra(Intent.EXTRA_TEXT, "Tu umieść treść zgłoszenia\n\n" + "-".repeat(40) + "\n" + """
-                Build: ${BuildConfig.VERSION_CODE}
-                SDK: ${android.os.Build.VERSION.SDK_INT}
-                Device: ${android.os.Build.MANUFACTURER} ${android.os.Build.MODEL}
-            """.trimIndent())
-        }
+    override fun openEmailClient() {
+        val intent = Intent(ACTION_SENDTO)
+            .apply {
+                data = Uri.parse("mailto:")
+                putExtra(EXTRA_EMAIL, arrayOf("wulkanowyinc@gmail.com"))
+                putExtra(EXTRA_SUBJECT, "Zgłoszenie błędu")
+                putExtra(EXTRA_TEXT, "Tu umieść treść zgłoszenia\n\n${"-".repeat(40)}\n " +
+                    """
+                        Build: ${appInfo.versionCode}
+                        SDK: ${appInfo.systemVersion}
+                        Device: ${appInfo.systemManufacturer} ${appInfo.systemModel}
+                    """.trimIndent())
+            }
 
         context?.let {
             if (intent.resolveActivity(it.packageManager) != null) {
@@ -86,8 +130,15 @@ class AboutFragment : BaseFragment(), AboutView, MainView.TitledView {
         }
     }
 
+    override fun openLicenses() {
+        (activity as? MainActivity)?.pushView(LicenseFragment.newInstance())
+    }
+
+    override fun openPrivacyPolicy() {
+        context?.openInternetBrowser("https://wulkanowy.github.io/polityka-prywatnosci.html", ::showMessage)
+    }
+
     override fun onDestroyView() {
-        fragmentCompat.onDestroyView()
         presenter.onDetachView()
         super.onDestroyView()
     }

app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutItem.kt

@@ -0,0 +1,56 @@
+package io.github.wulkanowy.ui.modules.about
+
+import android.graphics.drawable.Drawable
+import android.view.View
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import eu.davidea.flexibleadapter.items.IFlexible
+import eu.davidea.viewholders.FlexibleViewHolder
+import io.github.wulkanowy.R
+import kotlinx.android.extensions.LayoutContainer
+import kotlinx.android.synthetic.main.item_about.*
+
+class AboutItem(
+    val title: String,
+    private val summary: String,
+    private val image: Drawable?
+) : AbstractFlexibleItem<AboutItem.ViewHolder>() {
+
+    override fun getLayoutRes() = R.layout.item_about
+
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) = ViewHolder(view, adapter)
+
+    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
+        with(holder) {
+            aboutItemImage.setImageDrawable(image)
+            aboutItemTitle.text = title
+            aboutItemSummary.text = summary
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as AboutItem
+
+        if (title != other.title) return false
+        if (summary != other.summary) return false
+        if (image != other.image) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = title.hashCode()
+        result = 31 * result + summary.hashCode()
+        result = 31 * result + (image?.hashCode() ?: 0)
+        return result
+    }
+
+    class ViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) : FlexibleViewHolder(view, adapter),
+        LayoutContainer {
+
+        override val containerView: View? get() = contentView
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutModule.kt

@@ -1,14 +0,0 @@
-package io.github.wulkanowy.ui.modules.about
-
-import com.mikepenz.aboutlibraries.LibsFragmentCompat
-import dagger.Module
-import dagger.Provides
-import io.github.wulkanowy.di.scopes.PerFragment
-
-@Module
-class AboutModule {
-
-    @PerFragment
-    @Provides
-    fun provideLibsFragmentCompat() = LibsFragmentCompat()
-}

app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutPresenter.kt

@@ -1,44 +1,70 @@
 package io.github.wulkanowy.ui.modules.about
 
-import com.mikepenz.aboutlibraries.Libs
-import com.mikepenz.aboutlibraries.Libs.SpecialButton.SPECIAL1
-import com.mikepenz.aboutlibraries.Libs.SpecialButton.SPECIAL2
-import com.mikepenz.aboutlibraries.Libs.SpecialButton.SPECIAL3
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.data.repositories.student.StudentRepository
 import io.github.wulkanowy.ui.base.BasePresenter
 import io.github.wulkanowy.ui.base.ErrorHandler
 import io.github.wulkanowy.utils.FirebaseAnalyticsHelper
+import io.github.wulkanowy.utils.SchedulersProvider
 import timber.log.Timber
 import javax.inject.Inject
 
 class AboutPresenter @Inject constructor(
+    schedulers: SchedulersProvider,
     errorHandler: ErrorHandler,
+    studentRepository: StudentRepository,
     private val analytics: FirebaseAnalyticsHelper
-) : BasePresenter<AboutView>(errorHandler) {
+) : BasePresenter<AboutView>(errorHandler, studentRepository, schedulers) {
 
     override fun onAttachView(view: AboutView) {
         super.onAttachView(view)
+        view.initView()
         Timber.i("About view was initialized")
+        loadData()
     }
 
-    fun onExtraSelect(type: Libs.SpecialButton?) {
+    fun onItemSelected(item: AbstractFlexibleItem<*>) {
+        if (item !is AboutItem) return
         view?.run {
-            when (type) {
-                SPECIAL1 -> {
-                    Timber.i("Opening discord invide page")
-                    analytics.logEvent("open_page", "name" to "discord")
-                    openDiscordInviteView()
+            when (item.title) {
+                feedbackRes?.first -> {
+                    Timber.i("Opening email client ")
+                    openEmailClient()
+                    analytics.logEvent("about_open", "name" to "feedback")
                 }
-                SPECIAL2 -> {
-                    Timber.i("Opening home page")
-                    analytics.logEvent("open_page", "name" to "home")
-                    openHomepageWebView()
+                discordRes?.first -> {
+                    Timber.i("Opening discord")
+                    openDiscordInvite()
+                    analytics.logEvent("about_open", "name" to "discord")
                 }
-                SPECIAL3 -> {
-                    Timber.i("Opening email client")
-                    analytics.logEvent("open_page", "name" to "email")
-                    openEmailClientView()
+                homepageRes?.first -> {
+                    Timber.i("Opening homepage")
+                    openHomepage()
+                    analytics.logEvent("about_open", "name" to "homepage")
+                }
+                licensesRes?.first -> {
+                    Timber.i("Opening licenses view")
+                    openLicenses()
+                    analytics.logEvent("about_open", "name" to "licenses")
+                }
+                privacyRes?.first -> {
+                    Timber.i("Opening privacy page ")
+                    openPrivacyPolicy()
+                    analytics.logEvent("about_open", "name" to "privacy")
                 }
             }
         }
     }
+
+    private fun loadData() {
+        view?.run {
+            updateData(AboutScrollableHeader(), listOfNotNull(
+                versionRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
+                feedbackRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
+                discordRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
+                homepageRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
+                licensesRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
+                privacyRes?.let { (title, summary, image) -> AboutItem(title, summary, image) }))
+        }
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutScrollableHeader.kt

@@ -0,0 +1,41 @@
+package io.github.wulkanowy.ui.modules.about
+
+import android.view.View
+import androidx.core.content.res.ResourcesCompat
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import eu.davidea.flexibleadapter.items.IFlexible
+import eu.davidea.viewholders.FlexibleViewHolder
+import io.github.wulkanowy.R
+import kotlinx.android.extensions.LayoutContainer
+import kotlinx.android.synthetic.main.scrollable_header_about.*
+
+class AboutScrollableHeader : AbstractFlexibleItem<AboutScrollableHeader.ViewHolder>() {
+
+    override fun getLayoutRes() = R.layout.scrollable_header_about
+
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) = ViewHolder(view, adapter)
+
+    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
+        with(holder) {
+            val context = contentView.context
+            val drawable = ResourcesCompat.getDrawableForDensity(context.resources, context.applicationInfo.icon, 640, null)
+
+            aboutScrollableHeaderIcon.setImageDrawable(drawable)
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        return true
+    }
+
+    override fun hashCode() = javaClass.hashCode()
+
+    class ViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) : FlexibleViewHolder(view, adapter),
+        LayoutContainer {
+
+        override val containerView: View? get() = contentView
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutView.kt

@@ -1,12 +1,33 @@
 package io.github.wulkanowy.ui.modules.about
 
+import android.graphics.drawable.Drawable
 import io.github.wulkanowy.ui.base.BaseView
 
 interface AboutView : BaseView {
 
-    fun openDiscordInviteView()
+    val versionRes: Triple<String, String, Drawable?>?
 
-    fun openEmailClientView()
+    val feedbackRes: Triple<String, String, Drawable?>?
 
-    fun openHomepageWebView()
+    val discordRes: Triple<String, String, Drawable?>?
+
+    val homepageRes: Triple<String, String, Drawable?>?
+
+    val licensesRes: Triple<String, String, Drawable?>?
+
+    val privacyRes: Triple<String, String, Drawable?>?
+
+    fun initView()
+
+    fun updateData(header: AboutScrollableHeader, items: List<AboutItem>)
+
+    fun openDiscordInvite()
+
+    fun openEmailClient()
+
+    fun openHomepage()
+
+    fun openLicenses()
+
+    fun openPrivacyPolicy()
 }

app/src/main/java/io/github/wulkanowy/ui/modules/about/license/LicenseFragment.kt

@@ -0,0 +1,86 @@
+package io.github.wulkanowy.ui.modules.about.license
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.appcompat.app.AlertDialog
+import androidx.core.text.parseAsHtml
+import com.mikepenz.aboutlibraries.Libs
+import com.mikepenz.aboutlibraries.entity.Library
+import dagger.Lazy
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.R
+import io.github.wulkanowy.ui.base.BaseFragment
+import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.setOnItemClickListener
+import kotlinx.android.synthetic.main.fragment_license.*
+import javax.inject.Inject
+
+class LicenseFragment : BaseFragment(), LicenseView, MainView.TitledView {
+
+    @Inject
+    lateinit var presenter: LicensePresenter
+
+    @Inject
+    lateinit var licenseAdapter: FlexibleAdapter<AbstractFlexibleItem<*>>
+
+    @Inject
+    lateinit var libs: Lazy<Libs>
+
+    override val titleStringId get() = R.string.license_title
+
+    override val appLibraries: ArrayList<Library>?
+        get() = context?.let {
+            libs.get().prepareLibraries(it, emptyArray(), emptyArray(), autoDetect = true, checkCachedDetection = true, sort = true)
+        }
+
+    companion object {
+        fun newInstance() = LicenseFragment()
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_license, container, false)
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this)
+    }
+
+    override fun initView() {
+        with(licenseRecycler) {
+            layoutManager = SmoothScrollLinearLayoutManager(context)
+            adapter = licenseAdapter
+        }
+        licenseAdapter.setOnItemClickListener(presenter::onItemSelected)
+    }
+
+    override fun updateData(data: List<LicenseItem>) {
+        licenseAdapter.updateDataSet(data)
+    }
+
+    override fun openLicense(licenseHtml: String) {
+        context?.let {
+            AlertDialog.Builder(it).apply {
+                setTitle(R.string.license_dialog_title)
+                setMessage(licenseHtml.parseAsHtml())
+                setPositiveButton(android.R.string.ok) { _, _ -> }
+                show()
+            }
+        }
+    }
+
+    override fun showProgress(show: Boolean) {
+        licenseProgress.visibility = if (show) VISIBLE else GONE
+    }
+
+    override fun onDestroyView() {
+        presenter.onDetachView()
+        super.onDestroyView()
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/about/license/LicenseItem.kt

@@ -0,0 +1,44 @@
+package io.github.wulkanowy.ui.modules.about.license
+
+import android.view.View
+import com.mikepenz.aboutlibraries.entity.Library
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import eu.davidea.flexibleadapter.items.IFlexible
+import eu.davidea.viewholders.FlexibleViewHolder
+import io.github.wulkanowy.R
+import kotlinx.android.extensions.LayoutContainer
+import kotlinx.android.synthetic.main.item_license.*
+
+class LicenseItem(val library: Library) : AbstractFlexibleItem<LicenseItem.ViewHolder>() {
+
+    override fun getLayoutRes() = R.layout.item_license
+
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) = ViewHolder(view, adapter)
+
+    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
+        with(holder) {
+            licenseItemName.text = library.libraryName
+            licenseItemSummary.text = library.license?.licenseName
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as LicenseItem
+
+        if (library != other.library) return false
+
+        return true
+    }
+
+    override fun hashCode() = library.hashCode()
+
+    class ViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) : FlexibleViewHolder(view, adapter),
+        LayoutContainer {
+
+        override val containerView: View? get() = contentView
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/about/license/LicenseModule.kt

@@ -0,0 +1,15 @@
+package io.github.wulkanowy.ui.modules.about.license
+
+import android.content.Context
+import com.mikepenz.aboutlibraries.Libs
+import dagger.Module
+import dagger.Provides
+import io.github.wulkanowy.di.scopes.PerFragment
+
+@Module
+class LicenseModule {
+
+    @PerFragment
+    @Provides
+    fun provideLibs(context: Context) = Libs(context)
+}

app/src/main/java/io/github/wulkanowy/ui/modules/about/license/LicensePresenter.kt

@@ -0,0 +1,40 @@
+package io.github.wulkanowy.ui.modules.about.license
+
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.data.repositories.student.StudentRepository
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.ErrorHandler
+import io.github.wulkanowy.utils.SchedulersProvider
+import io.reactivex.Single
+import javax.inject.Inject
+
+class LicensePresenter @Inject constructor(
+    schedulers: SchedulersProvider,
+    errorHandler: ErrorHandler,
+    studentRepository: StudentRepository
+) : BasePresenter<LicenseView>(errorHandler, studentRepository, schedulers) {
+
+    override fun onAttachView(view: LicenseView) {
+        super.onAttachView(view)
+        view.initView()
+        loadData()
+    }
+
+    fun onItemSelected(item: AbstractFlexibleItem<*>) {
+        if (item !is LicenseItem) return
+        view?.run { item.library.license?.licenseDescription?.let { openLicense(it) } }
+    }
+
+    private fun loadData() {
+        disposable.add(Single.fromCallable { view?.appLibraries }
+            .map {
+                val exclude = listOf("Android-Iconics", "CircleImageView", "FastAdapter", "Jsoup", "okio", "Retrofit")
+                it.filter { library -> !exclude.contains(library.libraryName) }
+            }
+            .map { it.map { library -> LicenseItem(library) } }
+            .subscribeOn(schedulers.backgroundThread)
+            .observeOn(schedulers.mainThread)
+            .doOnEvent { _, _ -> view?.showProgress(false) }
+            .subscribe({ view?.run { updateData(it) } }, { errorHandler.dispatch(it) }))
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/about/license/LicenseView.kt

@@ -0,0 +1,17 @@
+package io.github.wulkanowy.ui.modules.about.license
+
+import com.mikepenz.aboutlibraries.entity.Library
+import io.github.wulkanowy.ui.base.BaseView
+
+interface LicenseView : BaseView {
+
+    val appLibraries: ArrayList<Library>?
+
+    fun initView()
+
+    fun updateData(data: List<LicenseItem>)
+
+    fun openLicense(licenseHtml: String)
+
+    fun showProgress(show: Boolean)
+}

app/src/main/java/io/github/wulkanowy/ui/modules/account/AccountDialog.kt

@@ -1,7 +1,5 @@
 package io.github.wulkanowy.ui.modules.account
 
-import android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK
-import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -14,6 +12,7 @@ import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.R
+import io.github.wulkanowy.ui.base.BaseActivity
 import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.utils.setOnItemClickListener
 import kotlinx.android.synthetic.main.dialog_account.*
@@ -73,16 +72,17 @@ class AccountDialog : DaggerAppCompatDialogFragment(), AccountView {
     }
 
     override fun openLoginView() {
-        activity?.also {
+        activity?.let {
             startActivity(LoginActivity.getStartIntent(it))
         }
     }
 
+    override fun showExpiredDialog() {
+        (activity as? BaseActivity<*>)?.showExpiredDialog()
+    }
+
     override fun openClearLoginView() {
-        activity?.also {
-            startActivity(LoginActivity.getStartIntent(it)
-                .apply { addFlags(FLAG_ACTIVITY_CLEAR_TASK or FLAG_ACTIVITY_NEW_TASK) })
-        }
+        (activity as? BaseActivity<*>)?.openClearLoginView()
     }
 
     override fun showConfirmDialog() {

app/src/main/java/io/github/wulkanowy/ui/modules/account/AccountItem.kt

@@ -1,13 +1,16 @@
 package io.github.wulkanowy.ui.modules.account
 
 import android.annotation.SuppressLint
+import android.graphics.PorterDuff
 import android.view.View
+import androidx.core.graphics.ColorUtils
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import eu.davidea.flexibleadapter.items.IFlexible
 import eu.davidea.viewholders.FlexibleViewHolder
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.utils.getThemeAttrColor
 import kotlinx.android.extensions.LayoutContainer
 import kotlinx.android.synthetic.main.item_account.*
 
@@ -15,16 +18,19 @@ class AccountItem(val student: Student) : AbstractFlexibleItem<AccountItem.ViewH
 
     override fun getLayoutRes() = R.layout.item_account
 
-    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>): ViewHolder {
-        return ViewHolder(view, adapter)
-    }
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) = ViewHolder(view, adapter)
 
     @SuppressLint("SetTextI18n")
     override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>?) {
-        holder.apply {
+        val context = holder.contentView.context
+
+        val colorImage = if (student.isCurrent) context.getThemeAttrColor(R.attr.colorPrimary)
+        else ColorUtils.setAlphaComponent(context.getThemeAttrColor(R.attr.colorOnSurface), 153)
+
+        with(holder) {
             accountItemName.text = "${student.studentName} ${student.className}"
             accountItemSchool.text = student.schoolName
-            accountItemImage.setBackgroundResource(if (student.isCurrent) R.drawable.ic_account_circular_border else 0)
+            accountItemImage.setColorFilter(colorImage, PorterDuff.Mode.SRC_IN)
         }
     }
 
@@ -45,8 +51,9 @@ class AccountItem(val student: Student) : AbstractFlexibleItem<AccountItem.ViewH
         return result
     }
 
-    class ViewHolder(view: View, adapter: FlexibleAdapter<*>) : FlexibleViewHolder(view, adapter), LayoutContainer {
-        override val containerView: View
-            get() = contentView
+    class ViewHolder(view: View, adapter: FlexibleAdapter<*>) : FlexibleViewHolder(view, adapter),
+        LayoutContainer {
+
+        override val containerView: View? get() = contentView
     }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/account/AccountPresenter.kt

@@ -11,11 +11,11 @@ import timber.log.Timber
 import javax.inject.Inject
 
 class AccountPresenter @Inject constructor(
-    private val errorHandler: ErrorHandler,
-    private val studentRepository: StudentRepository,
-    private val syncManager: SyncManager,
-    private val schedulers: SchedulersProvider
-) : BasePresenter<AccountView>(errorHandler) {
+    schedulers: SchedulersProvider,
+    errorHandler: ErrorHandler,
+    studentRepository: StudentRepository,
+    private val syncManager: SyncManager
+) : BasePresenter<AccountView>(errorHandler, studentRepository, schedulers) {
 
     override fun onAttachView(view: AccountView) {
         super.onAttachView(view)

app/src/main/java/io/github/wulkanowy/ui/modules/account/AccountView.kt

@@ -14,8 +14,6 @@ interface AccountView : BaseView {
 
     fun openLoginView()
 
-    fun openClearLoginView()
-
     fun recreateMainView()
 }
 

app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceFragment.kt

@@ -13,15 +13,17 @@ import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Attendance
-import io.github.wulkanowy.ui.base.session.BaseSessionFragment
+import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.attendance.summary.AttendanceSummaryFragment
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.setOnItemClickListener
 import kotlinx.android.synthetic.main.fragment_attendance.*
 import javax.inject.Inject
 
-class AttendanceFragment : BaseSessionFragment(), AttendanceView, MainView.MainChildView, MainView.TitledView {
+class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildView,
+    MainView.TitledView {
 
     @Inject
     lateinit var presenter: AttendancePresenter
@@ -35,14 +37,11 @@ class AttendanceFragment : BaseSessionFragment(), AttendanceView, MainView.MainC
         fun newInstance() = AttendanceFragment()
     }
 
-    override val titleStringId: Int
-        get() = R.string.attendance_title
+    override val titleStringId get() = R.string.attendance_title
 
-    override val isViewEmpty: Boolean
-        get() = attendanceAdapter.isEmpty
+    override val isViewEmpty get() = attendanceAdapter.isEmpty
 
-    override val currentStackSize: Int?
-        get() = (activity as? MainActivity)?.currentStackSize
+    override val currentStackSize get() = (activity as? MainActivity)?.currentStackSize
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -60,21 +59,21 @@ class AttendanceFragment : BaseSessionFragment(), AttendanceView, MainView.MainC
     }
 
     override fun initView() {
-        attendanceAdapter.apply {
-            setOnItemClickListener { presenter.onAttendanceItemSelected(it) }
-        }
+        attendanceAdapter.setOnItemClickListener(presenter::onAttendanceItemSelected)
 
-        attendanceRecycler.run {
+        with(attendanceRecycler) {
             layoutManager = SmoothScrollLinearLayoutManager(context)
             adapter = attendanceAdapter
             addItemDecoration(FlexibleItemDecoration(context)
                 .withDefaultDivider()
-                .withDrawDividerOnLastItem(false)
-            )
+                .withDrawDividerOnLastItem(false))
         }
-        attendanceSwipe.setOnRefreshListener { presenter.onSwipeRefresh() }
+
+        attendanceSwipe.setOnRefreshListener(presenter::onSwipeRefresh)
         attendancePreviousButton.setOnClickListener { presenter.onPreviousDay() }
         attendanceNextButton.setOnClickListener { presenter.onNextDay() }
+
+        attendanceNavContainer.setElevationCompat(requireContext().dpToPx(8f))
     }
 
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {

app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendancePresenter.kt

@@ -1,15 +1,15 @@
 package io.github.wulkanowy.ui.modules.attendance
 
-import com.google.firebase.analytics.FirebaseAnalytics.Param.START_DATE
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.data.repositories.attendance.AttendanceRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.data.repositories.semester.SemesterRepository
 import io.github.wulkanowy.data.repositories.student.StudentRepository
-import io.github.wulkanowy.ui.base.session.BaseSessionPresenter
-import io.github.wulkanowy.ui.base.session.SessionErrorHandler
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.ErrorHandler
 import io.github.wulkanowy.utils.FirebaseAnalyticsHelper
 import io.github.wulkanowy.utils.SchedulersProvider
+import io.github.wulkanowy.utils.getLastSchoolDayIfHoliday
 import io.github.wulkanowy.utils.isHolidays
 import io.github.wulkanowy.utils.nextSchoolDay
 import io.github.wulkanowy.utils.previousOrSameSchoolDay
@@ -23,14 +23,16 @@ import java.util.concurrent.TimeUnit.MILLISECONDS
 import javax.inject.Inject
 
 class AttendancePresenter @Inject constructor(
-    private val errorHandler: SessionErrorHandler,
-    private val schedulers: SchedulersProvider,
+    schedulers: SchedulersProvider,
+    errorHandler: ErrorHandler,
+    studentRepository: StudentRepository,
     private val attendanceRepository: AttendanceRepository,
-    private val studentRepository: StudentRepository,
     private val semesterRepository: SemesterRepository,
     private val prefRepository: PreferencesRepository,
     private val analytics: FirebaseAnalyticsHelper
-) : BaseSessionPresenter<AttendanceView>(errorHandler) {
+) : BasePresenter<AttendanceView>(errorHandler, studentRepository, schedulers) {
+
+    private var baseDate: LocalDate = now().previousOrSameSchoolDay
 
     lateinit var currentDate: LocalDate
         private set
@@ -39,7 +41,8 @@ class AttendancePresenter @Inject constructor(
         super.onAttachView(view)
         view.initView()
         Timber.i("Attendance view was initialized")
-        loadData(ofEpochDay(date ?: now().previousOrSameSchoolDay.toEpochDay()))
+        loadData(ofEpochDay(date ?: baseDate.toEpochDay()))
+        if (currentDate.isHolidays) setBaseDateOnHolidays()
         reloadView()
     }
 
@@ -62,7 +65,7 @@ class AttendancePresenter @Inject constructor(
         Timber.i("Attendance view is reselected")
         view?.also { view ->
             if (view.currentStackSize == 1) {
-                now().previousOrSameSchoolDay.also {
+                baseDate.also {
                     if (currentDate != it) {
                         loadData(it)
                         reloadView()
@@ -84,6 +87,20 @@ class AttendancePresenter @Inject constructor(
         return true
     }
 
+    private fun setBaseDateOnHolidays() {
+        disposable.add(studentRepository.getCurrentStudent()
+            .flatMap { semesterRepository.getCurrentSemester(it) }
+            .subscribeOn(schedulers.backgroundThread)
+            .observeOn(schedulers.mainThread)
+            .subscribe({
+                baseDate = baseDate.getLastSchoolDayIfHoliday(it.schoolYear)
+                currentDate = baseDate
+                reloadNavigation()
+            }) {
+                Timber.i("Loading semester result: An exception occurred")
+            })
+    }
+
     private fun loadData(date: LocalDate, forceRefresh: Boolean = false) {
         Timber.i("Loading attendance data started")
         currentDate = date
@@ -115,7 +132,7 @@ class AttendancePresenter @Inject constructor(
                         showEmpty(it.isEmpty())
                         showContent(it.isNotEmpty())
                     }
-                    analytics.logEvent("load_attendance", "items" to it.size, "force_refresh" to forceRefresh, START_DATE to currentDate.toFormattedString("yyyy-MM-dd"))
+                    analytics.logEvent("load_attendance", "items" to it.size, "force_refresh" to forceRefresh)
                 }) {
                     Timber.i("Loading attendance result: An exception occurred")
                     view?.run { showEmpty(isViewEmpty) }
@@ -133,8 +150,14 @@ class AttendancePresenter @Inject constructor(
             showContent(false)
             showEmpty(false)
             clearData()
-            showNextButton(!currentDate.plusDays(1).isHolidays)
+            reloadNavigation()
+        }
+    }
+
+    private fun reloadNavigation() {
+        view?.apply {
             showPreButton(!currentDate.minusDays(1).isHolidays)
+            showNextButton(!currentDate.plusDays(1).isHolidays)
             updateNavigationDay(currentDate.toFormattedString("EEEE\ndd.MM.YYYY").capitalize())
         }
     }

app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceView.kt

@@ -1,9 +1,9 @@
 package io.github.wulkanowy.ui.modules.attendance
 
 import io.github.wulkanowy.data.db.entities.Attendance
-import io.github.wulkanowy.ui.base.session.BaseSessionView
+import io.github.wulkanowy.ui.base.BaseView
 
-interface AttendanceView : BaseSessionView {
+interface AttendanceView : BaseView {
 
     val isViewEmpty: Boolean
 

app/src/main/java/io/github/wulkanowy/ui/modules/attendance/summary/AttendanceSummaryFragment.kt

@@ -13,13 +13,14 @@ import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.R
-import io.github.wulkanowy.ui.base.session.BaseSessionFragment
+import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.setOnItemSelectedListener
 import kotlinx.android.synthetic.main.fragment_attendance_summary.*
 import javax.inject.Inject
 
-class AttendanceSummaryFragment : BaseSessionFragment(), AttendanceSummaryView, MainView.TitledView {
+class AttendanceSummaryFragment : BaseFragment(), AttendanceSummaryView, MainView.TitledView {
 
     @Inject
     lateinit var presenter: AttendanceSummaryPresenter
@@ -35,11 +36,9 @@ class AttendanceSummaryFragment : BaseSessionFragment(), AttendanceSummaryView,
         fun newInstance() = AttendanceSummaryFragment()
     }
 
-    override val titleStringId: Int
-        get() = R.string.attendance_title
+    override val titleStringId get() = R.string.attendance_title
 
-    override val isViewEmpty
-        get() = attendanceSummaryAdapter.isEmpty
+    override val isViewEmpty get() = attendanceSummaryAdapter.isEmpty
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_attendance_summary, container, false)
@@ -52,25 +51,26 @@ class AttendanceSummaryFragment : BaseSessionFragment(), AttendanceSummaryView,
     }
 
     override fun initView() {
-        attendanceSummaryRecycler.run {
+        with(attendanceSummaryRecycler) {
             layoutManager = SmoothScrollLinearLayoutManager(context)
             adapter = attendanceSummaryAdapter
         }
-        attendanceSummarySwipe.setOnRefreshListener { presenter.onSwipeRefresh() }
 
-        context?.let {
-            subjectsAdapter = ArrayAdapter(it, android.R.layout.simple_spinner_item, ArrayList<String>())
-            subjectsAdapter.setDropDownViewResource(R.layout.item_attendance_summary_subject)
-        }
+        attendanceSummarySwipe.setOnRefreshListener(presenter::onSwipeRefresh)
 
-        attendanceSummarySubjects.run {
+        subjectsAdapter = ArrayAdapter(requireContext(), android.R.layout.simple_spinner_item, mutableListOf())
+        subjectsAdapter.setDropDownViewResource(R.layout.item_attendance_summary_subject)
+
+        with(attendanceSummarySubjects) {
             adapter = subjectsAdapter
-            setOnItemSelectedListener { presenter.onSubjectSelected((it as TextView).text.toString()) }
+            setOnItemSelectedListener<TextView> { presenter.onSubjectSelected(it?.text?.toString()) }
         }
+
+        attendanceSummarySubjectsContainer.setElevationCompat(requireContext().dpToPx(1f))
     }
 
     override fun updateSubjects(data: ArrayList<String>) {
-        subjectsAdapter.run {
+        with(subjectsAdapter) {
             clear()
             addAll(data)
             notifyDataSetChanged()
@@ -78,9 +78,9 @@ class AttendanceSummaryFragment : BaseSessionFragment(), AttendanceSummaryView,
     }
 
     override fun updateDataSet(data: List<AttendanceSummaryItem>, header: AttendanceSummaryScrollableHeader) {
-        attendanceSummaryAdapter.apply {
+        with(attendanceSummaryAdapter) {
             updateDataSet(data, true)
-            removeAllScrollableHeaders()
+            removeAllScrollableFooters()
             addScrollableHeader(header)
         }
     }

app/src/main/java/io/github/wulkanowy/ui/modules/attendance/summary/AttendanceSummaryPresenter.kt

@@ -6,8 +6,8 @@ import io.github.wulkanowy.data.repositories.attendancesummary.AttendanceSummary
 import io.github.wulkanowy.data.repositories.semester.SemesterRepository
 import io.github.wulkanowy.data.repositories.student.StudentRepository
 import io.github.wulkanowy.data.repositories.subject.SubjectRepository
-import io.github.wulkanowy.ui.base.session.BaseSessionPresenter
-import io.github.wulkanowy.ui.base.session.SessionErrorHandler
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.ErrorHandler
 import io.github.wulkanowy.utils.FirebaseAnalyticsHelper
 import io.github.wulkanowy.utils.SchedulersProvider
 import io.github.wulkanowy.utils.calculatePercentage
@@ -19,14 +19,14 @@ import java.util.concurrent.TimeUnit.MILLISECONDS
 import javax.inject.Inject
 
 class AttendanceSummaryPresenter @Inject constructor(
-    private val errorHandler: SessionErrorHandler,
+    schedulers: SchedulersProvider,
+    errorHandler: ErrorHandler,
+    studentRepository: StudentRepository,
     private val attendanceSummaryRepository: AttendanceSummaryRepository,
     private val subjectRepository: SubjectRepository,
-    private val studentRepository: StudentRepository,
     private val semesterRepository: SemesterRepository,
-    private val schedulers: SchedulersProvider,
     private val analytics: FirebaseAnalyticsHelper
-) : BaseSessionPresenter<AttendanceSummaryView>(errorHandler) {
+) : BasePresenter<AttendanceSummaryView>(errorHandler, studentRepository, schedulers) {
 
     private var subjects = emptyList<Subject>()
 
@@ -46,7 +46,7 @@ class AttendanceSummaryPresenter @Inject constructor(
         loadData(currentSubjectId, true)
     }
 
-    fun onSubjectSelected(name: String) {
+    fun onSubjectSelected(name: String?) {
         Timber.i("Select attendance summary subject $name")
         view?.run {
             showContent(false)

app/src/main/java/io/github/wulkanowy/ui/modules/attendance/summary/AttendanceSummaryView.kt

@@ -1,8 +1,8 @@
 package io.github.wulkanowy.ui.modules.attendance.summary
 
-import io.github.wulkanowy.ui.base.session.BaseSessionView
+import io.github.wulkanowy.ui.base.BaseView
 
-interface AttendanceSummaryView : BaseSessionView {
+interface AttendanceSummaryView : BaseView {
 
     val isViewEmpty: Boolean
 

app/src/main/java/io/github/wulkanowy/ui/modules/exam/ExamFragment.kt

@@ -13,14 +13,15 @@ import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Exam
-import io.github.wulkanowy.ui.base.session.BaseSessionFragment
+import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.setOnItemClickListener
 import kotlinx.android.synthetic.main.fragment_exam.*
 import javax.inject.Inject
 
-class ExamFragment : BaseSessionFragment(), ExamView, MainView.MainChildView, MainView.TitledView {
+class ExamFragment : BaseFragment(), ExamView, MainView.MainChildView, MainView.TitledView {
 
     @Inject
     lateinit var presenter: ExamPresenter
@@ -34,11 +35,9 @@ class ExamFragment : BaseSessionFragment(), ExamView, MainView.MainChildView, Ma
         fun newInstance() = ExamFragment()
     }
 
-    override val titleStringId: Int
-        get() = R.string.exam_title
+    override val titleStringId get() = R.string.exam_title
 
-    override val isViewEmpty: Boolean
-        get() = examAdapter.isEmpty
+    override val isViewEmpty get() = examAdapter.isEmpty
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_exam, container, false)
@@ -51,20 +50,21 @@ class ExamFragment : BaseSessionFragment(), ExamView, MainView.MainChildView, Ma
     }
 
     override fun initView() {
-        examAdapter.run {
-            setOnItemClickListener { presenter.onExamItemSelected(it) }
-        }
-        examRecycler.run {
+        examAdapter.setOnItemClickListener(presenter::onExamItemSelected)
+
+        with(examRecycler) {
             layoutManager = SmoothScrollLinearLayoutManager(context)
             adapter = examAdapter
             addItemDecoration(FlexibleItemDecoration(context)
                 .withDefaultDivider(R.layout.item_exam)
-                .withDrawDividerOnLastItem(false)
-            )
+                .withDrawDividerOnLastItem(false))
         }
-        examSwipe.setOnRefreshListener { presenter.onSwipeRefresh() }
+
+        examSwipe.setOnRefreshListener(presenter::onSwipeRefresh)
         examPreviousButton.setOnClickListener { presenter.onPreviousWeek() }
         examNextButton.setOnClickListener { presenter.onNextWeek() }
+
+        examNavContainer.setElevationCompat(requireContext().dpToPx(8f))
     }
 
     override fun hideRefresh() {

app/src/main/java/io/github/wulkanowy/ui/modules/exam/ExamPresenter.kt

@@ -1,16 +1,16 @@
 package io.github.wulkanowy.ui.modules.exam
 
-import com.google.firebase.analytics.FirebaseAnalytics.Param.START_DATE
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.data.db.entities.Exam
 import io.github.wulkanowy.data.repositories.exam.ExamRepository
 import io.github.wulkanowy.data.repositories.semester.SemesterRepository
 import io.github.wulkanowy.data.repositories.student.StudentRepository
-import io.github.wulkanowy.ui.base.session.BaseSessionPresenter
-import io.github.wulkanowy.ui.base.session.SessionErrorHandler
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.ErrorHandler
 import io.github.wulkanowy.utils.FirebaseAnalyticsHelper
 import io.github.wulkanowy.utils.SchedulersProvider
 import io.github.wulkanowy.utils.friday
+import io.github.wulkanowy.utils.getLastSchoolDayIfHoliday
 import io.github.wulkanowy.utils.isHolidays
 import io.github.wulkanowy.utils.monday
 import io.github.wulkanowy.utils.nextOrSameSchoolDay
@@ -23,13 +23,15 @@ import java.util.concurrent.TimeUnit.MILLISECONDS
 import javax.inject.Inject
 
 class ExamPresenter @Inject constructor(
-    private val errorHandler: SessionErrorHandler,
-    private val schedulers: SchedulersProvider,
+    schedulers: SchedulersProvider,
+    errorHandler: ErrorHandler,
+    studentRepository: StudentRepository,
     private val examRepository: ExamRepository,
-    private val studentRepository: StudentRepository,
     private val semesterRepository: SemesterRepository,
     private val analytics: FirebaseAnalyticsHelper
-) : BaseSessionPresenter<ExamView>(errorHandler) {
+) : BasePresenter<ExamView>(errorHandler, studentRepository, schedulers) {
+
+    private var baseDate: LocalDate = now().nextOrSameSchoolDay
 
     lateinit var currentDate: LocalDate
         private set
@@ -38,7 +40,8 @@ class ExamPresenter @Inject constructor(
         super.onAttachView(view)
         view.initView()
         Timber.i("Exam view was initialized")
-        loadData(ofEpochDay(date ?: now().nextOrSameSchoolDay.toEpochDay()))
+        loadData(ofEpochDay(date ?: baseDate.toEpochDay()))
+        if (currentDate.isHolidays) setBaseDateOnHolidays()
         reloadView()
     }
 
@@ -66,7 +69,7 @@ class ExamPresenter @Inject constructor(
 
     fun onViewReselected() {
         Timber.i("Exam view is reselected")
-        now().nextOrSameSchoolDay.also {
+        baseDate.also {
             if (currentDate != it) {
                 loadData(it)
                 reloadView()
@@ -74,6 +77,20 @@ class ExamPresenter @Inject constructor(
         }
     }
 
+    private fun setBaseDateOnHolidays() {
+        disposable.add(studentRepository.getCurrentStudent()
+            .flatMap { semesterRepository.getCurrentSemester(it) }
+            .subscribeOn(schedulers.backgroundThread)
+            .observeOn(schedulers.mainThread)
+            .subscribe({
+                baseDate = baseDate.getLastSchoolDayIfHoliday(it.schoolYear)
+                currentDate = baseDate
+                reloadNavigation()
+            }) {
+                Timber.i("Loading semester result: An exception occurred")
+            })
+    }
+
     private fun loadData(date: LocalDate, forceRefresh: Boolean = false) {
         Timber.i("Loading exam data started")
         currentDate = date
@@ -82,9 +99,8 @@ class ExamPresenter @Inject constructor(
             add(studentRepository.getCurrentStudent()
                 .delay(200, MILLISECONDS)
                 .flatMap { semesterRepository.getCurrentSemester(it) }
-                .flatMap {
-                    examRepository.getExams(it, currentDate.monday, currentDate.friday, forceRefresh)
-                }.map { it.groupBy { exam -> exam.date }.toSortedMap() }
+                .flatMap { examRepository.getExams(it, currentDate.monday, currentDate.friday, forceRefresh) }
+                .map { it.groupBy { exam -> exam.date }.toSortedMap() }
                 .map { createExamItems(it) }
                 .subscribeOn(schedulers.backgroundThread)
                 .observeOn(schedulers.mainThread)
@@ -102,7 +118,7 @@ class ExamPresenter @Inject constructor(
                         showEmpty(it.isEmpty())
                         showContent(it.isNotEmpty())
                     }
-                    analytics.logEvent("load_exam", "items" to it.size, "force_refresh" to forceRefresh, START_DATE to currentDate.toFormattedString("yyyy-MM-dd"))
+                    analytics.logEvent("load_exam", "items" to it.size, "force_refresh" to forceRefresh)
                 }) {
                     Timber.i("Loading exam result: An exception occurred")
                     view?.run { showEmpty(isViewEmpty) }
@@ -127,6 +143,12 @@ class ExamPresenter @Inject constructor(
             showContent(false)
             showEmpty(false)
             clearData()
+            reloadNavigation()
+        }
+    }
+
+    private fun reloadNavigation() {
+        view?.apply {
             showPreButton(!currentDate.minusDays(7).isHolidays)
             showNextButton(!currentDate.plusDays(7).isHolidays)
             updateNavigationWeek("${currentDate.monday.toFormattedString("dd.MM")} - " +

app/src/main/java/io/github/wulkanowy/ui/modules/exam/ExamView.kt

@@ -1,9 +1,9 @@
 package io.github.wulkanowy.ui.modules.exam
 
 import io.github.wulkanowy.data.db.entities.Exam
-import io.github.wulkanowy.ui.base.session.BaseSessionView
+import io.github.wulkanowy.ui.base.BaseView
 
-interface ExamView : BaseSessionView {
+interface ExamView : BaseView {
 
     val isViewEmpty: Boolean
 

app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradeAverageProvider.kt

@@ -3,16 +3,20 @@ package io.github.wulkanowy.ui.modules.grade
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.repositories.grade.GradeRepository
+import io.github.wulkanowy.data.repositories.gradessummary.GradeSummaryRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.utils.calcAverage
 import io.github.wulkanowy.utils.changeModifier
+import io.reactivex.Maybe
 import io.reactivex.Single
 import javax.inject.Inject
 
 class GradeAverageProvider @Inject constructor(
     private val preferencesRepository: PreferencesRepository,
-    private val gradeRepository: GradeRepository
+    private val gradeRepository: GradeRepository,
+    private val gradeSummaryRepository: GradeSummaryRepository
 ) {
+
     fun getGradeAverage(student: Student, semesters: List<Semester>, selectedSemesterId: Int, forceRefresh: Boolean): Single<Map<String, Double>> {
         return when (preferencesRepository.gradeAverageMode) {
             "all_year" -> getAllYearAverage(student, semesters, selectedSemesterId, forceRefresh)
@@ -27,16 +31,19 @@ class GradeAverageProvider @Inject constructor(
         val plusModifier = preferencesRepository.gradePlusModifier
         val minusModifier = preferencesRepository.gradeMinusModifier
 
-        return gradeRepository.getGrades(student, selectedSemester, forceRefresh)
-            .flatMap { firstGrades ->
-                if (selectedSemester == firstSemester) Single.just(firstGrades)
-                else gradeRepository.getGrades(student, firstSemester)
-                    .map { secondGrades -> secondGrades + firstGrades }
-            }.map { grades ->
-                grades.map { it.changeModifier(plusModifier, minusModifier) }
-                    .groupBy { it.subject }
-                    .mapValues { it.value.calcAverage() }
-            }
+        return getAverageFromGradeSummary(selectedSemester, forceRefresh)
+            .switchIfEmpty(gradeRepository.getGrades(student, selectedSemester, forceRefresh)
+                .flatMap { firstGrades ->
+                    if (selectedSemester == firstSemester) Single.just(firstGrades)
+                    else {
+                        gradeRepository.getGrades(student, firstSemester)
+                            .map { secondGrades -> secondGrades + firstGrades }
+                    }
+                }.map { grades ->
+                    grades.map { it.changeModifier(plusModifier, minusModifier) }
+                        .groupBy { it.subject }
+                        .mapValues { it.value.calcAverage() }
+                })
     }
 
     private fun getOnlyOneSemesterAverage(student: Student, semesters: List<Semester>, semesterId: Int, forceRefresh: Boolean): Single<Map<String, Double>> {
@@ -44,11 +51,22 @@ class GradeAverageProvider @Inject constructor(
         val plusModifier = preferencesRepository.gradePlusModifier
         val minusModifier = preferencesRepository.gradeMinusModifier
 
-        return gradeRepository.getGrades(student, selectedSemester, forceRefresh)
-            .map { grades ->
-                grades.map { it.changeModifier(plusModifier, minusModifier) }
-                    .groupBy { it.subject }
-                    .mapValues { it.value.calcAverage() }
-            }
+        return getAverageFromGradeSummary(selectedSemester, forceRefresh)
+            .switchIfEmpty(gradeRepository.getGrades(student, selectedSemester, forceRefresh)
+                .map { grades ->
+                    grades.map { it.changeModifier(plusModifier, minusModifier) }
+                        .groupBy { it.subject }
+                        .mapValues { it.value.calcAverage() }
+                })
+    }
+
+    private fun getAverageFromGradeSummary(selectedSemester: Semester, forceRefresh: Boolean): Maybe<Map<String, Double>> {
+        return gradeSummaryRepository.getGradesSummary(selectedSemester, forceRefresh)
+            .toMaybe()
+            .flatMap {
+                if (it.any { summary -> summary.average != .0 }) {
+                    Maybe.just(it.map { summary -> summary.subject to summary.average }.toMap())
+                } else Maybe.empty()
+            }.filter { !preferencesRepository.gradeAverageForceCalc }
     }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradeFragment.kt

@@ -11,17 +11,18 @@ import android.view.View.VISIBLE
 import android.view.ViewGroup
 import androidx.appcompat.app.AlertDialog
 import io.github.wulkanowy.R
+import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.base.BaseFragmentPagerAdapter
-import io.github.wulkanowy.ui.base.session.BaseSessionFragment
 import io.github.wulkanowy.ui.modules.grade.details.GradeDetailsFragment
 import io.github.wulkanowy.ui.modules.grade.statistics.GradeStatisticsFragment
 import io.github.wulkanowy.ui.modules.grade.summary.GradeSummaryFragment
 import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.setOnSelectPageListener
 import kotlinx.android.synthetic.main.fragment_grade.*
 import javax.inject.Inject
 
-class GradeFragment : BaseSessionFragment(), GradeView, MainView.MainChildView, MainView.TitledView {
+class GradeFragment : BaseFragment(), GradeView, MainView.MainChildView, MainView.TitledView {
 
     @Inject
     lateinit var presenter: GradePresenter
@@ -37,11 +38,9 @@ class GradeFragment : BaseSessionFragment(), GradeView, MainView.MainChildView,
         fun newInstance() = GradeFragment()
     }
 
-    override val titleStringId: Int
-        get() = R.string.grade_title
+    override val titleStringId get() = R.string.grade_title
 
-    override val currentPageIndex: Int
-        get() = gradeViewPager.currentItem
+    override val currentPageIndex get() = gradeViewPager.currentItem
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -64,7 +63,7 @@ class GradeFragment : BaseSessionFragment(), GradeView, MainView.MainChildView,
     }
 
     override fun initView() {
-        pagerAdapter.apply {
+        with(pagerAdapter) {
             containerId = gradeViewPager.id
             addFragmentsWithTitle(mapOf(
                 GradeDetailsFragment.newInstance() to getString(R.string.all_details),
@@ -73,13 +72,18 @@ class GradeFragment : BaseSessionFragment(), GradeView, MainView.MainChildView,
             ))
         }
 
-        gradeViewPager.run {
+        with(gradeViewPager) {
             adapter = pagerAdapter
             offscreenPageLimit = 3
-            setOnSelectPageListener { presenter.onPageSelected(it) }
+            setOnSelectPageListener(presenter::onPageSelected)
         }
-        gradeTabLayout.setupWithViewPager(gradeViewPager)
-        gradeSwipe.setOnRefreshListener { presenter.onSwipeRefresh() }
+
+        with(gradeTabLayout) {
+            setupWithViewPager(gradeViewPager)
+            setElevationCompat(context.dpToPx(4f))
+        }
+
+        gradeSwipe.setOnRefreshListener(presenter::onSwipeRefresh)
     }
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
@@ -117,19 +121,19 @@ class GradeFragment : BaseSessionFragment(), GradeView, MainView.MainChildView,
     }
 
     override fun showSemesterDialog(selectedIndex: Int) {
-        arrayOf(getString(R.string.grade_semester, 1),
-            getString(R.string.grade_semester, 2)).also { array ->
-            context?.let {
-                AlertDialog.Builder(it)
-                    .setSingleChoiceItems(array, selectedIndex) { dialog, which ->
-                        presenter.onSemesterSelected(which)
-                        dialog.dismiss()
-                    }
-                    .setTitle(R.string.grade_switch_semester)
-                    .setNegativeButton(android.R.string.cancel) { _, _ -> }
-                    .show()
+        val choices = arrayOf(
+            getString(R.string.grade_semester, 1),
+            getString(R.string.grade_semester, 2)
+        )
+
+        AlertDialog.Builder(requireContext())
+            .setSingleChoiceItems(choices, selectedIndex) { dialog, which ->
+                presenter.onSemesterSelected(which)
+                dialog.dismiss()
             }
-        }
+            .setTitle(R.string.grade_switch_semester)
+            .setNegativeButton(android.R.string.cancel) { _, _ -> }
+            .show()
     }
 
     fun onChildRefresh() {

app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradeModule.kt

@@ -10,6 +10,7 @@ import io.github.wulkanowy.ui.modules.grade.details.GradeDetailsFragment
 import io.github.wulkanowy.ui.modules.grade.statistics.GradeStatisticsFragment
 import io.github.wulkanowy.ui.modules.grade.summary.GradeSummaryFragment
 
+@Suppress("unused")
 @Module
 abstract class GradeModule {