Merge branch 'release/0.22.1' into master

Version 0.22.0

.gitignore

@@ -113,3 +113,6 @@ Thumbs.db
 
 !/gradle/wrapper/gradle-wrapper.jar
 .idea/jarRepositories.xml
+
+
+app/src/release/agconnect-services.json

.idea/codeStyles/Project.xml

@@ -4,7 +4,16 @@
     <JetCodeStyleSettings>
       <option name="PACKAGES_TO_USE_STAR_IMPORTS">
         <value>
-          <package name="kotlinx.android.synthetic" withSubpackages="true" static="false" />
+          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
+        </value>
+      </option>
+      <option name="PACKAGES_IMPORT_LAYOUT">
+        <value>
+          <package name="" alias="false" withSubpackages="true" />
+          <package name="java" alias="false" withSubpackages="true" />
+          <package name="javax" alias="false" withSubpackages="true" />
+          <package name="kotlin" alias="false" withSubpackages="true" />
+          <package name="" alias="true" withSubpackages="true" />
         </value>
       </option>
       <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="2147483647" />

.travis.yml

@@ -3,8 +3,8 @@ jdk: oraclejdk8
 
 env:
  global:
-    - ANDROID_API_LEVEL=29
-    - ANDROID_BUILD_TOOLS_VERSION=29.0.3
+   - ANDROID_API_LEVEL=30
+   - ANDROID_BUILD_TOOLS_VERSION=30.0.2
 
 cache:
   directories:
@@ -14,7 +14,7 @@ cache:
 branches:
   only:
     - develop
-    - 0.19.0
+    - 0.22.1
 
 android:
  licenses:
@@ -28,28 +28,32 @@ android:
     - build-tools-$ANDROID_BUILD_TOOLS_VERSION
     # The SDK version used to compile your project
     - android-$ANDROID_API_LEVEL
-    # Additional components
+   # Additional components
     - extra-google-google_play_services
     - extra-google-m2repository
     - extra-android-m2repository
     - addon-google_apis-google-$ANDROID_API_LEVEL
-    # Android emulator
+   # Android emulator
     - android-22
     - sys-img-armeabi-v7a-android-22
 
+before_install:
+  - yes | sdkmanager "platforms;android-30"
+  - yes | sdkmanager "build-tools;30.0.2"
+
 before_script:
-    # Launch emulator before the execution
-    - echo no | android create avd --force -n test -t android-22 --abi armeabi-v7a
-    - emulator -avd test -no-audio -no-window &
-    - android-wait-for-emulator
-    - adb shell input keyevent 82 &
-    - "curl -H 'Cache-Control: no-cache' https://raw.githubusercontent.com/fossas/fossa-cli/master/install.sh | sudo bash"
+  # Launch emulator before the execution
+  - echo no | android create avd --force -n test -t android-22 --abi armeabi-v7a
+  - emulator -avd test -no-audio -no-window &
+  - android-wait-for-emulator
+  - adb shell input keyevent 82 &
+  - "curl -H 'Cache-Control: no-cache' https://raw.githubusercontent.com/fossas/fossa-cli/master/install.sh | sudo bash"
 
 script:
   - ./gradlew dependencies --stacktrace --daemon
   - fossa --no-ansi || true
-  - ./gradlew -Pcoverage testPlayDebugUnitTest --stacktrace --daemon
-  - ./gradlew -Pcoverage createFdroidDebugCoverageReport --stacktrace --daemon
+  - ./gradlew -Pcoverage testFdroidDebugUnitTest --stacktrace --daemon
+  - ./gradlew -Pcoverage connectedFdroidDebugAndroidTest --stacktrace --daemon
   - ./gradlew -Pcoverage jacocoTestReport --stacktrace --daemon
   - |
     if [ $TRAVIS_TAG ]; then

README.en.md

@@ -32,14 +32,17 @@ Unofficial android VULCAN UONET+ register client for both students and their par
 
 ## Download
 
-You can download the current beta version from the Google Play or the F-Droid store
+You can download the current beta version from the Google Play, F-Droid or Huawei AppGallery 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)
+    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 F-Droid"
     height="80">](https://f-droid.org/packages/io.github.wulkanowy/)
+[<img src="appgallery_badge.png"
+    alt="Explore it on AppGallery"
+    height="80">](https://appgallery.cloud.huawei.com/ag/n/app/C101440411?channelId=Badge&id=1b3f7fbb700849a9be0dba6b520b2282&s=EB1D3BF9ED9D1564D869B7B94B18016D3CABFCA5AEFB8E29F675FA04E0DC131D&detailType=0&v=)
     
 You can also download a [development version](https://wulkanowy.github.io/#download) that includes new features being prepared for the next release
 
@@ -47,7 +50,6 @@ You can also download a [development version](https://wulkanowy.github.io/#downl
 
 
 * [Wulkanowy SDK](https://github.com/wulkanowy/sdk)
-* [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) 

README.md

@@ -32,14 +32,17 @@ Nieoficjalny klient dziennika VULCAN UONET+ dla ucznia i rodzica
 
 ## Pobierz
 
-Aktualną wersję beta możesz pobrać ze sklepu Google Play lub F-Droid
+Aktualną wersję beta możesz pobrać ze sklepu Google Play, F-Droid lub Huawei AppGallery
 
 [<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)
+    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 F-Droid"
     height="80">](https://f-droid.org/packages/io.github.wulkanowy/)
+[<img src="appgallery_badge.png"
+    alt="Odkrywaj w AppGallery"
+    height="80">](https://appgallery.cloud.huawei.com/ag/n/app/C101440411?channelId=Badge&id=1b3f7fbb700849a9be0dba6b520b2282&s=EB1D3BF9ED9D1564D869B7B94B18016D3CABFCA5AEFB8E29F675FA04E0DC131D&detailType=0&v=)
 
 
 Możesz także pobrać [wersję rozwojową](https://wulkanowy.github.io/#download), która zawiera nowe funkcje przygotowywane do następnego wydania
@@ -48,7 +51,6 @@ Możesz także pobrać [wersję rozwojową](https://wulkanowy.github.io/#downloa
 ## Zbudowana za pomocą
 
 * [Wulkanowy SDK](https://github.com/wulkanowy/SDK)
-* [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) 

app/build.gradle

@@ -1,6 +1,7 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
+apply plugin: 'dagger.hilt.android.plugin'
 apply plugin: 'com.google.firebase.crashlytics'
 apply plugin: 'com.github.triplet.play'
 apply plugin: 'com.mikepenz.aboutlibraries.plugin'
@@ -9,16 +10,16 @@ apply from: 'sonarqube.gradle'
 apply from: 'hooks.gradle'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion '29.0.3'
+    compileSdkVersion 30
+    buildToolsVersion '30.0.2'
 
     defaultConfig {
         applicationId "io.github.wulkanowy"
         testApplicationId "io.github.tests.wulkanowy"
         minSdkVersion 17
-        targetSdkVersion 29
-        versionCode 63
-        versionName "0.19.0"
+        targetSdkVersion 30
+        versionCode 74
+        versionName "0.22.1"
         multiDexEnabled true
         resValue "string", "app_name", "Wulkanowy"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -28,7 +29,7 @@ android {
         ]
         javaCompileOptions {
             annotationProcessorOptions {
-                arguments = [
+                arguments += [
                         "room.schemaLocation": "$projectDir/schemas".toString(),
                         "room.incremental"   : "true"
                 ]
@@ -68,12 +69,26 @@ android {
     flavorDimensions "platform"
 
     productFlavors {
+        hms {
+            dimension "platform"
+            minSdkVersion 19
+            manifestPlaceholders = [
+                    install_channel: "AppGallery"
+            ]
+        }
+
         play {
             dimension "platform"
+            manifestPlaceholders = [
+                    install_channel: "Google Play"
+            ]
         }
 
         fdroid {
             dimension "platform"
+            manifestPlaceholders = [
+                    install_channel: "F-Droid"
+            ]
         }
     }
 
@@ -86,12 +101,14 @@ android {
     }
 
     compileOptions {
+        coreLibraryDesugaringEnabled true
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
     kotlinOptions {
         jvmTarget = "1.8"
+        freeCompilerArgs += ["-Xopt-in=kotlin.RequiresOptIn", "-Xjvm-default=all"]
     }
 
     packagingOptions {
@@ -109,14 +126,15 @@ play {
     serviceAccountCredentials = file('key.p12')
     defaultToAppBundles = false
     track = 'alpha'
+    updatePriority = 1
 }
 
 ext {
-    work_manager = "2.3.4"
+    work_manager = "2.4.0"
     room = "2.2.5"
-    dagger = "2.28"
-    chucker = "3.2.0"
-    mockk = "1.9.2"
+    chucker = "3.3.0"
+    mockk = "1.10.2"
+    moshi = "1.11.0"
 }
 
 configurations.all {
@@ -124,13 +142,17 @@ configurations.all {
 }
 
 dependencies {
-    implementation "io.github.wulkanowy:sdk:0.19.0"
+    implementation "io.github.wulkanowy:sdk:0.22.1"
+
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.0.10'
 
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation "androidx.core:core-ktx:1.2.0"
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
+
+    implementation "androidx.core:core-ktx:1.3.2"
     implementation "androidx.activity:activity-ktx:1.1.0"
-    implementation "androidx.appcompat:appcompat:1.2.0-rc01"
-    implementation "androidx.appcompat:appcompat-resources:1.1.0"
+    implementation "androidx.appcompat:appcompat:1.2.0"
+    implementation "androidx.appcompat:appcompat-resources:1.2.0"
     implementation "androidx.fragment:fragment-ktx:1.2.5"
     implementation "androidx.annotation:annotation:1.1.0"
     implementation "androidx.multidex:multidex:2.0.1"
@@ -138,74 +160,71 @@ dependencies {
     implementation "androidx.preference:preference-ktx:1.1.1"
     implementation "androidx.recyclerview:recyclerview:1.1.0"
     implementation "androidx.viewpager:viewpager:1.0.0"
-    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0-rc01"
-    implementation "androidx.constraintlayout:constraintlayout:1.1.3"
+    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"
+    implementation "androidx.constraintlayout:constraintlayout:2.0.1"
     implementation "androidx.coordinatorlayout:coordinatorlayout:1.1.0"
-    implementation "com.google.android.material:material:1.1.0"
+    implementation "com.google.android.material:material:1.2.1"
     implementation "com.github.wulkanowy:material-chips-input:2.1.1"
     implementation "com.github.PhilJay:MPAndroidChart:v3.1.0"
     implementation "me.zhanghai.android.materialprogressbar:library:1.6.1"
 
     implementation "androidx.work:work-runtime-ktx:$work_manager"
-    implementation "androidx.work:work-rxjava2:$work_manager"
     implementation "androidx.work:work-gcm:$work_manager"
 
-    implementation 'com.github.PaulinaSadowska:RxWorkManagerObservers:1.0.0'
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0"
 
     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:$dagger"
-    kapt "com.google.dagger:dagger-compiler:$dagger"
-    kapt "com.google.dagger:dagger-android-processor:$dagger"
-    implementation "com.squareup.inject:assisted-inject-annotations-dagger2:0.5.2"
-    kapt "com.squareup.inject:assisted-inject-processor-dagger2:0.5.2"
+    implementation "com.google.dagger:hilt-android:$hilt_version"
+    kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
+    implementation 'androidx.hilt:hilt-work:1.0.0-alpha02'
+    kapt 'androidx.hilt:hilt-compiler:1.0.0-alpha02'
 
     implementation "com.aurelhubert:ahbottomnavigation:2.3.4"
     implementation "com.ncapdevi:frag-nav:3.3.0"
     implementation "com.github.YarikSOffice:lingver:1.2.2"
 
-    implementation "com.github.pwittchen:reactivenetwork-rx2:3.0.8"
-    implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
-    implementation "io.reactivex.rxjava2:rxjava:2.2.19"
-
-    implementation "com.google.code.gson:gson:2.8.6"
-    implementation "com.jakewharton.threetenabp:threetenabp:1.2.4"
+    implementation "com.squareup.moshi:moshi:$moshi"
+    implementation "com.squareup.moshi:moshi-adapters:$moshi"
+    kapt "com.squareup.moshi:moshi-kotlin-codegen:$moshi"
     implementation "com.jakewharton.timber:timber:4.7.1"
     implementation "at.favre.lib:slf4j-timber:1.0.1"
     implementation "fr.bipi.treessence:treessence:0.3.2"
     implementation "com.mikepenz:aboutlibraries-core:$about_libraries"
     implementation 'com.wdullaer:materialdatetimepicker:4.2.3'
-    implementation "io.coil-kt:coil:0.11.0"
+    implementation "io.coil-kt:coil:1.0.0-rc3"
     implementation "io.github.wulkanowy:AppKillerManager:3.0.0"
     implementation 'me.xdrop:fuzzywuzzy:1.3.1'
 
-    playImplementation 'com.google.firebase:firebase-analytics:17.4.3'
-    playImplementation 'com.google.firebase:firebase-inappmessaging-display-ktx:19.0.7'
-    playImplementation "com.google.firebase:firebase-inappmessaging-ktx:19.0.7"
-    playImplementation 'com.google.firebase:firebase-messaging:20.2.0'
-    playImplementation 'com.google.firebase:firebase-crashlytics:17.0.1'
+    playImplementation 'com.google.firebase:firebase-analytics:17.6.0'
+    playImplementation 'com.google.firebase:firebase-inappmessaging-display-ktx:19.1.1'
+    playImplementation "com.google.firebase:firebase-inappmessaging-ktx:19.1.1"
+    playImplementation 'com.google.firebase:firebase-messaging:20.3.0'
+    playImplementation 'com.google.firebase:firebase-crashlytics:17.2.2'
+    playImplementation 'com.google.android.play:core-ktx:1.8.1'
     playImplementation 'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava'
 
+    hmsImplementation 'com.huawei.hms:hianalytics:5.0.4.300'
+    hmsImplementation 'com.huawei.agconnect:agconnect-crash:1.4.1.300'
+
     releaseImplementation "com.github.ChuckerTeam.Chucker:library-no-op:$chucker"
 
     debugImplementation "com.github.ChuckerTeam.Chucker:library:$chucker"
     debugImplementation "com.amitshekhar.android:debug-db:1.0.6"
 
-    testImplementation "junit:junit:4.13"
+    testImplementation "junit:junit:4.13.1"
     testImplementation "io.mockk:mockk:$mockk"
-    testImplementation "org.threeten:threetenbp:1.4.4"
-    testImplementation "org.mockito:mockito-inline:3.3.3"
+    testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.3.9'
 
-    androidTestImplementation "androidx.test:core:1.2.0"
-    androidTestImplementation "androidx.test:runner:1.2.0"
-    androidTestImplementation "androidx.test.ext:junit:1.1.1"
+    androidTestImplementation "androidx.test:core:1.3.0"
+    androidTestImplementation "androidx.test:runner:1.3.0"
+    androidTestImplementation "androidx.test.ext:junit:1.1.2"
     androidTestImplementation "io.mockk:mockk-android:$mockk"
     androidTestImplementation "androidx.room:room-testing:$room"
     androidTestImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
-    androidTestImplementation "org.mockito:mockito-android:3.3.3"
 }
 
 apply plugin: 'com.google.gms.google-services'
+apply plugin: 'com.huawei.agconnect'

app/jacoco.gradle

@@ -35,13 +35,13 @@ task jacocoTestReport(type: JacocoReport) {
             dir: "$buildDir/intermediates/classes/debug",
             excludes: excludes
     ) + fileTree(
-            dir: "$buildDir/tmp/kotlin-classes/playDebug",
+            dir: "$buildDir/tmp/kotlin-classes/fdroidDebug",
             excludes: excludes
     ))
 
     sourceDirectories.setFrom(files([
             "src/main/java",
-            "src/play/java"
+            "src/fdroid/java"
     ]))
     executionData.setFrom(fileTree(
             dir: project.projectDir,

app/proguard-rules.pro

@@ -30,13 +30,6 @@
 -dontwarn javax.annotation.**
 
 
-#Config for ReactiveNetwork
--dontwarn com.github.pwittchen.reactivenetwork.library.rx2.ReactiveNetwork
--dontwarn io.reactivex.functions.Function
--dontwarn rx.internal.util.**
--dontwarn sun.misc.Unsafe
-
-
 #Config for MPAndroidChart
 -keep class com.github.mikephil.charting.** { *; }
 

app/src/androidTest/java/io/github/wulkanowy/data/TestDispatchersProvider.kt

@@ -0,0 +1,11 @@
+package io.github.wulkanowy.data
+
+import io.github.wulkanowy.utils.DispatchersProvider
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+
+class TestDispatchersProvider : DispatchersProvider() {
+
+    override val backgroundThread: CoroutineDispatcher
+        get() = Dispatchers.Unconfined
+}

app/src/androidTest/java/io/github/wulkanowy/data/db/migrations/Migration12Test.kt

@@ -4,6 +4,7 @@ import android.content.ContentValues
 import android.database.sqlite.SQLiteDatabase.CONFLICT_FAIL
 import androidx.sqlite.db.SupportSQLiteDatabase
 import androidx.test.ext.junit.runners.AndroidJUnit4
+import kotlinx.coroutines.runBlocking
 import org.junit.Test
 import org.junit.runner.RunWith
 import kotlin.test.assertEquals
@@ -29,7 +30,7 @@ class Migration12Test : AbstractMigrationTest() {
         helper.runMigrationsAndValidate(dbName, 12, true, Migration12())
 
         val db = getMigratedRoomDatabase()
-        val students = db.studentDao.loadAll().blockingGet()
+        val students = runBlocking { db.studentDao.loadAll() }
 
         assertEquals(2, students.size)
 
@@ -58,7 +59,7 @@ class Migration12Test : AbstractMigrationTest() {
         helper.runMigrationsAndValidate(dbName, 12, true, Migration12())
 
         val db = getMigratedRoomDatabase()
-        val students = db.studentDao.loadAll().blockingGet()
+        val students = runBlocking { db.studentDao.loadAll() }
 
         assertEquals(1, students.size)
 
@@ -84,7 +85,7 @@ class Migration12Test : AbstractMigrationTest() {
         helper.runMigrationsAndValidate(dbName, 12, true, Migration12())
 
         val db = getMigratedRoomDatabase()
-        val students = db.studentDao.loadAll().blockingGet()
+        val students = runBlocking { db.studentDao.loadAll() }
 
         assertEquals(3, students.size)
 

app/src/androidTest/java/io/github/wulkanowy/data/db/migrations/Migration13Test.kt

@@ -5,10 +5,11 @@ import android.database.sqlite.SQLiteDatabase
 import androidx.sqlite.db.SupportSQLiteDatabase
 import io.github.wulkanowy.data.db.Converters
 import io.github.wulkanowy.data.db.entities.Semester
+import kotlinx.coroutines.runBlocking
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertTrue
 import org.junit.Test
-import org.threeten.bp.LocalDate.of
+import java.time.LocalDate.of
 import kotlin.test.assertFalse
 import kotlin.test.assertTrue
 
@@ -26,7 +27,7 @@ class Migration13Test : AbstractMigrationTest() {
         helper.runMigrationsAndValidate(dbName, 13, true, Migration13())
 
         val db = getMigratedRoomDatabase()
-        val students = db.studentDao.loadAll().blockingGet()
+        val students = runBlocking { db.studentDao.loadAll() }
 
         assertEquals(3, students.size)
 
@@ -60,7 +61,7 @@ class Migration13Test : AbstractMigrationTest() {
         helper.runMigrationsAndValidate(dbName, 13, true, Migration13())
 
         val db = getMigratedRoomDatabase()
-        val students = db.studentDao.loadAll().blockingGet()
+        val students = runBlocking { db.studentDao.loadAll() }
 
         assertEquals(2, students.size)
 

app/src/androidTest/java/io/github/wulkanowy/data/db/migrations/Migration27Test.kt

@@ -0,0 +1,124 @@
+package io.github.wulkanowy.data.db.migrations
+
+import android.content.ContentValues
+import android.database.sqlite.SQLiteDatabase
+import androidx.sqlite.db.SupportSQLiteDatabase
+import kotlinx.coroutines.runBlocking
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import kotlin.random.Random
+
+class Migration27Test : AbstractMigrationTest() {
+
+    @Test
+    fun userWithoutCorrespondingUnit() {
+        with(helper.createDatabase(dbName, 26)) {
+            createStudent(this, 321, 123, "Jan Student")
+            createUnit(this, 9999, "Unit Jan")
+            close()
+        }
+
+        helper.runMigrationsAndValidate(dbName, 27, true, Migration27())
+
+        val db = getMigratedRoomDatabase()
+        val students = runBlocking { db.studentDao.loadAll() }
+
+        assertEquals(1, students.size)
+
+        with(students[0]) {
+            assertEquals(321, id)
+            assertEquals(123, userLoginId)
+            assertEquals("Student Jan", userName)
+        }
+    }
+
+    @Test
+    fun userWithCorrespondingUnit() {
+        with(helper.createDatabase(dbName, 26)) {
+            createStudent(this, 1, 2, "Jan Kowalski Student")
+            createUnit(this, 2, "Unit Jan")
+            close()
+        }
+
+        helper.runMigrationsAndValidate(dbName, 27, true, Migration27())
+
+        val db = getMigratedRoomDatabase()
+        val students = runBlocking { db.studentDao.loadAll() }
+
+        assertEquals(1, students.size)
+
+        with(students[0]) {
+            assertEquals(1, id)
+            assertEquals(2, userLoginId)
+            assertEquals("Unit Jan", userName)
+        }
+    }
+
+    @Test
+    fun studentAccountAndParentAccountWithCorrespondingUnits() {
+        with(helper.createDatabase(dbName, 26)) {
+            createStudent(this, 1, 222, "Jan Student")
+            createStudent(this, 2, 333, "Jan Parent")
+            createUnit(this, 222, "Unit Jan")
+            createUnit(this, 333, "Unit Tomasz")
+            close()
+        }
+
+        helper.runMigrationsAndValidate(dbName, 27, true, Migration27())
+
+        val db = getMigratedRoomDatabase()
+        val students = runBlocking { db.studentDao.loadAll() }
+
+        assertEquals(2, students.size)
+
+        with(students[0]) {
+            assertEquals(1, id)
+            assertEquals(222, userLoginId)
+            assertEquals("Unit Jan", userName)
+        }
+        with(students[1]) {
+            assertEquals(2, id)
+            assertEquals(333, userLoginId)
+            assertEquals("Unit Tomasz", userName)
+        }
+    }
+
+    private fun createStudent(db: SupportSQLiteDatabase, id: Long, userLoginId: Int, studentName: String) {
+        db.insert("Students", SQLiteDatabase.CONFLICT_FAIL, ContentValues().apply {
+            put("id", id)
+            put("scrapper_base_url", "https://fakelog.cf")
+            put("mobile_base_url", "")
+            put("login_mode", "SCRAPPER")
+            put("login_type", "STANDARD")
+            put("certificate_key", "")
+            put("private_key", "")
+            put("is_parent", false)
+            put("email", "jan@fakelog.cf")
+            put("password", "******")
+            put("symbol", "Default")
+            put("school_short", "")
+            put("class_name", "")
+            put("student_id", Random.nextInt())
+            put("class_id", Random.nextInt())
+            put("school_id", "123")
+            put("school_name", "Wulkan first class school")
+            put("is_current", false)
+            put("registration_date", "0")
+
+            put("user_login_id", userLoginId)
+            put("student_name", studentName)
+        })
+    }
+
+    private fun createUnit(db: SupportSQLiteDatabase, senderId: Int, senderName: String) {
+        db.insert("ReportingUnits", SQLiteDatabase.CONFLICT_FAIL, ContentValues().apply {
+            put("student_id", Random.nextInt())
+            put("real_id", Random.nextInt())
+            put("short", "SHORT")
+            put("roles", "[0]")
+
+            put("sender_id", senderId)
+            put("sender_name", senderName)
+        })
+    }
+}

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

@@ -1,7 +1,9 @@
 package io.github.wulkanowy.data.repositories
 
+import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
-import org.threeten.bp.LocalDateTime
+import java.time.LocalDate.now
+import java.time.LocalDateTime
 
 fun getStudent(): Student {
     return Student(
@@ -11,6 +13,7 @@ fun getStudent(): Student {
         scrapperBaseUrl = "fakelog.cf",
         loginType = "AUTO",
         isCurrent = true,
+        userName = "",
         studentName = "",
         schoolShortName = "",
         schoolName = "",
@@ -27,3 +30,16 @@ fun getStudent(): Student {
         isParent = false
     )
 }
+
+fun getSemester() = Semester(
+    semesterId = 1,
+    studentId = 1,
+    classId = 1,
+    diaryId = 2,
+    diaryName = "",
+    end = now(),
+    schoolYear = 2019,
+    semesterName = 1,
+    start = now(),
+    unitId = 1
+)

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

@@ -1,19 +0,0 @@
-package io.github.wulkanowy.data.repositories
-
-import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingStrategy
-import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.error.ErrorHandler
-import io.reactivex.Observable
-import io.reactivex.Single
-
-class TestInternetObservingStrategy : InternetObservingStrategy {
-
-    override fun checkInternetConnectivity(host: String?, port: Int, timeoutInMs: Int, httpResponse: Int, errorHandler: ErrorHandler?): Single<Boolean> {
-        return Single.just(true)
-    }
-
-    override fun observeInternetConnectivity(initialIntervalInMs: Int, intervalInMs: Int, host: String?, port: Int, timeoutInMs: Int, httpResponse: Int, errorHandler: ErrorHandler?): Observable<Boolean> {
-        return Observable.just(true)
-    }
-
-    override fun getDefaultPingHost() = "localhost"
-}

app/src/androidTest/java/io/github/wulkanowy/data/repositories/attendance/AttendanceLocalTest.kt

@@ -6,13 +6,15 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.entities.Attendance
 import io.github.wulkanowy.data.db.entities.Semester
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDate.now
-import org.threeten.bp.LocalDate.of
+import java.time.LocalDate
+import java.time.LocalDate.now
+import java.time.LocalDate.of
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -35,7 +37,7 @@ class AttendanceLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        attendanceLocal.saveAttendance(listOf(
+        val list = listOf(
             getAttendanceEntity(
                 of(2018, 9, 10),
                 SentExcuseStatus.ACCEPTED
@@ -48,14 +50,11 @@ class AttendanceLocalTest {
                 of(2018, 9, 17),
                 SentExcuseStatus.ACCEPTED
             )
-        ))
+        )
+        runBlocking { attendanceLocal.saveAttendance(list) }
 
-        val attendance = attendanceLocal
-            .getAttendance(Semester(1, 2, "", 1, 3, 2019, now(), now(), 1, 1),
-                of(2018, 9, 10),
-                of(2018, 9, 14)
-            )
-            .blockingGet()
+        val semester = Semester(1, 2, "", 1, 3, 2019, now(), now(), 1, 1)
+        val attendance = runBlocking { attendanceLocal.getAttendance(semester, of(2018, 9, 10), of(2018, 9, 14)).first() }
         assertEquals(2, attendance.size)
         assertEquals(attendance[0].date, of(2018, 9, 10))
         assertEquals(attendance[1].date, of(2018, 9, 14))

app/src/androidTest/java/io/github/wulkanowy/data/repositories/completedlessons/CompletedLessonsLocalTest.kt

@@ -6,13 +6,15 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.entities.CompletedLesson
 import io.github.wulkanowy.data.db.entities.Semester
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDate.now
-import org.threeten.bp.LocalDate.of
+import java.time.LocalDate
+import java.time.LocalDate.now
+import java.time.LocalDate.of
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -24,7 +26,8 @@ class CompletedLessonsLocalTest {
 
     @Before
     fun createDb() {
-        testDb = Room.inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
+        testDb = Room
+            .inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
             .build()
         completedLessonsLocal = CompletedLessonsLocal(testDb.completedLessonsDao)
     }
@@ -36,18 +39,15 @@ class CompletedLessonsLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        completedLessonsLocal.saveCompletedLessons(listOf(
+        val list = listOf(
             getCompletedLesson(of(2018, 9, 10), 1),
             getCompletedLesson(of(2018, 9, 14), 2),
             getCompletedLesson(of(2018, 9, 17), 3)
-        ))
+        )
+        runBlocking { completedLessonsLocal.saveCompletedLessons(list) }
 
-        val completed = completedLessonsLocal
-            .getCompletedLessons(Semester(1, 2, "", 1, 3, 2019, now(), now(), 1, 1),
-                of(2018, 9, 10),
-                of(2018, 9, 14)
-            )
-            .blockingGet()
+        val semester = Semester(1, 2, "", 1, 3, 2019, now(), now(), 1, 1)
+        val completed = runBlocking { completedLessonsLocal.getCompletedLessons(semester, of(2018, 9, 10), of(2018, 9, 14)).first() }
         assertEquals(2, completed.size)
         assertEquals(completed[0].date, of(2018, 9, 10))
         assertEquals(completed[1].date, of(2018, 9, 14))

app/src/androidTest/java/io/github/wulkanowy/data/repositories/exam/ExamLocalTest.kt

@@ -6,12 +6,14 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.entities.Exam
 import io.github.wulkanowy.data.db.entities.Semester
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate.now
-import org.threeten.bp.LocalDate.of
+import java.time.LocalDate.now
+import java.time.LocalDate.of
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -34,18 +36,15 @@ class ExamLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        examLocal.saveExams(listOf(
+        val list = listOf(
             Exam(1, 2, of(2018, 9, 10), now(), "", "", "", "", "", ""),
             Exam(1, 2, of(2018, 9, 14), now(), "", "", "", "", "", ""),
             Exam(1, 2, of(2018, 9, 17), now(), "", "", "", "", "", "")
-        ))
+        )
+        runBlocking { examLocal.saveExams(list) }
 
-        val exams = examLocal
-            .getExams(Semester(1, 2, "", 1, 3, 2019, now(), now(), 1, 1),
-                of(2018, 9, 10),
-                of(2018, 9, 14)
-            )
-            .blockingGet()
+        val semester = Semester(1, 2, "", 1, 3, 2019, now(), now(), 1, 1)
+        val exams = runBlocking { examLocal.getExams(semester, of(2018, 9, 10), of(2018, 9, 14)).first() }
         assertEquals(2, exams.size)
         assertEquals(exams[0].date, of(2018, 9, 10))
         assertEquals(exams[1].date, of(2018, 9, 14))

app/src/androidTest/java/io/github/wulkanowy/data/repositories/grade/GradeLocalTest.kt

@@ -5,12 +5,14 @@ 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.entities.Semester
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDate.now
+import java.time.LocalDate
+import java.time.LocalDate.now
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -22,7 +24,8 @@ class GradeLocalTest {
 
     @Before
     fun createDb() {
-        testDb = Room.inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
+        testDb = Room
+            .inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
             .build()
         gradeLocal = GradeLocal(testDb.gradeDao, testDb.gradeSummaryDao)
     }
@@ -34,17 +37,16 @@ class GradeLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        gradeLocal.saveGrades(listOf(
+        val list = listOf(
             createGradeLocal(5, 3.0, LocalDate.of(2018, 9, 10), "", 1),
             createGradeLocal(4, 4.0, LocalDate.of(2019, 2, 27), "", 2),
             createGradeLocal(3, 5.0, LocalDate.of(2019, 2, 28), "", 2)
-        ))
+        )
+        runBlocking { gradeLocal.saveGrades(list) }
 
         val semester = Semester(1, 2, "", 2019, 2, 1, now(), now(), 1, 1)
 
-        val grades = gradeLocal
-            .getGradesDetails(semester)
-            .blockingGet()
+        val grades = runBlocking { gradeLocal.getGradesDetails(semester).first() }
 
         assertEquals(2, grades.size)
         assertEquals(grades[0].date, LocalDate.of(2019, 2, 27))

app/src/androidTest/java/io/github/wulkanowy/data/repositories/grade/GradeRepositoryTest.kt

@@ -5,23 +5,25 @@ import androidx.room.Room
 import androidx.test.core.app.ApplicationProvider.getApplicationContext
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.SdkSuppress
-import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingSettings
+import io.github.wulkanowy.data.Status
 import io.github.wulkanowy.data.db.AppDatabase
+import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
-import io.github.wulkanowy.data.repositories.TestInternetObservingStrategy
 import io.github.wulkanowy.sdk.Sdk
-import io.github.wulkanowy.sdk.pojo.Grade
 import io.mockk.MockKAnnotations
+import io.mockk.coEvery
 import io.mockk.every
 import io.mockk.impl.annotations.MockK
-import io.reactivex.Single
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate.of
-import org.threeten.bp.LocalDateTime
+import java.time.LocalDate.of
+import java.time.LocalDateTime
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
 import kotlin.test.assertTrue
@@ -30,19 +32,12 @@ import kotlin.test.assertTrue
 @RunWith(AndroidJUnit4::class)
 class GradeRepositoryTest {
 
-    @MockK
-    private lateinit var mockSdk: Sdk
-
-    private val settings = InternetObservingSettings.builder()
-        .strategy(TestInternetObservingStrategy())
-        .build()
-
     @MockK
     private lateinit var semesterMock: Semester
 
-    @MockK
     private lateinit var studentMock: Student
 
+    @MockK
     private lateinit var gradeRemote: GradeRemote
 
     private lateinit var gradeLocal: GradeLocal
@@ -54,14 +49,12 @@ class GradeRepositoryTest {
         MockKAnnotations.init(this)
         testDb = Room.inMemoryDatabaseBuilder(getApplicationContext(), AppDatabase::class.java).build()
         gradeLocal = GradeLocal(testDb.gradeDao, testDb.gradeSummaryDao)
-        gradeRemote = GradeRemote(mockSdk)
+        studentMock = getStudentMock()
 
-        every { studentMock.registrationDate } returns LocalDateTime.of(2019, 2, 27, 12, 0)
         every { semesterMock.studentId } returns 1
         every { semesterMock.diaryId } returns 1
         every { semesterMock.schoolYear } returns 2019
         every { semesterMock.semesterId } returns 1
-        every { mockSdk.switchDiary(any(), any()) } returns mockSdk
     }
 
     @After
@@ -71,15 +64,18 @@ class GradeRepositoryTest {
 
     @Test
     fun markOlderThanRegisterDateAsRead() {
-        every { mockSdk.getGrades(1) } returns Single.just(listOf(
-            createGradeApi(5, 4.0, of(2019, 2, 25), "Ocena pojawiła się"),
-            createGradeApi(5, 4.0, of(2019, 2, 26), "przed zalogowanie w aplikacji"),
-            createGradeApi(5, 4.0, of(2019, 2, 27), "Ocena z dnia logowania"),
-            createGradeApi(5, 4.0, of(2019, 2, 28), "Ocena jeszcze nowsza")
+        coEvery { gradeRemote.getGrades(studentMock, semesterMock) } returns (listOf(
+            createGradeLocal(5, 4.0, of(2019, 2, 25), "Ocena pojawiła się"),
+            createGradeLocal(5, 4.0, of(2019, 2, 26), "przed zalogowanie w aplikacji"),
+            createGradeLocal(5, 4.0, of(2019, 2, 27), "Ocena z dnia logowania"),
+            createGradeLocal(5, 4.0, of(2019, 2, 28), "Ocena jeszcze nowsza")
         ) to emptyList())
 
-        val grades = GradeRepository(settings, gradeLocal, gradeRemote)
-            .getGrades(studentMock, semesterMock, true).blockingGet().first.sortedByDescending { it.date }
+        val grades = runBlocking {
+            GradeRepository(gradeLocal, gradeRemote)
+                .getGrades(studentMock, semesterMock, true)
+                .filter { it.status == Status.SUCCESS }.first().data!!.first.sortedByDescending { it.date }
+        }
 
         assertFalse { grades[0].isRead }
         assertFalse { grades[1].isRead }
@@ -89,21 +85,25 @@ class GradeRepositoryTest {
 
     @Test
     fun mitigateOldGradesNotifications() {
-        gradeLocal.saveGrades(listOf(
+        val list = listOf(
             createGradeLocal(5, 3.0, of(2019, 2, 25), "Jedna ocena"),
             createGradeLocal(4, 4.0, of(2019, 2, 26), "Druga"),
             createGradeLocal(3, 5.0, of(2019, 2, 27), "Trzecia")
-        ))
+        )
+        runBlocking { gradeLocal.saveGrades(list) }
 
-        every { mockSdk.getGrades(1) } returns Single.just(listOf(
-            createGradeApi(5, 2.0, of(2019, 2, 25), "Ocena ma datę, jest inna, ale nie zostanie powiadomiona"),
-            createGradeApi(4, 3.0, of(2019, 2, 26), "starszą niż ostatnia lokalnie"),
-            createGradeApi(3, 4.0, of(2019, 2, 27), "Ta jest z tego samego dnia co ostatnia lokalnie"),
-            createGradeApi(2, 5.0, of(2019, 2, 28), "Ta jest już w ogóle nowa")
+        coEvery { gradeRemote.getGrades(studentMock, semesterMock) } returns (listOf(
+            createGradeLocal(5, 2.0, of(2019, 2, 25), "Ocena ma datę, jest inna, ale nie zostanie powiadomiona"),
+            createGradeLocal(4, 3.0, of(2019, 2, 26), "starszą niż ostatnia lokalnie"),
+            createGradeLocal(3, 4.0, of(2019, 2, 27), "Ta jest z tego samego dnia co ostatnia lokalnie"),
+            createGradeLocal(2, 5.0, of(2019, 2, 28), "Ta jest już w ogóle nowa")
         ) to emptyList())
 
-        val grades = GradeRepository(settings, gradeLocal, gradeRemote)
-            .getGrades(studentMock, semesterMock, true).blockingGet().first.sortedByDescending { it.date }
+        val grades = runBlocking {
+            GradeRepository(gradeLocal, gradeRemote)
+                .getGrades(studentMock, semesterMock, true)
+                .filter { it.status == Status.SUCCESS }.first().data!!.first.sortedByDescending { it.date }
+        }
 
         assertFalse { grades[0].isRead }
         assertFalse { grades[1].isRead }
@@ -113,70 +113,109 @@ class GradeRepositoryTest {
 
     @Test
     fun subtractLocaleDuplicateGrades() {
-        gradeLocal.saveGrades(listOf(
+        val list = listOf(
             createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
             createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
             createGradeLocal(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
-        ))
+        )
+        runBlocking { gradeLocal.saveGrades(list) }
 
-        every { mockSdk.getGrades(1) } returns Single.just(listOf(
-            createGradeApi(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
-            createGradeApi(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
+        coEvery { gradeRemote.getGrades(studentMock, semesterMock) } returns (listOf(
+            createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
+            createGradeLocal(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
         ) to emptyList())
 
-        val grades = GradeRepository(settings, gradeLocal, gradeRemote)
-            .getGrades(studentMock, semesterMock, true).blockingGet()
+        val grades = runBlocking {
+            GradeRepository(gradeLocal, gradeRemote)
+                .getGrades(studentMock, semesterMock, true)
+                .filter { it.status == Status.SUCCESS }.first().data!!
+        }
 
         assertEquals(2, grades.first.size)
     }
 
     @Test
     fun subtractRemoteDuplicateGrades() {
-        gradeLocal.saveGrades(listOf(
+        val list = listOf(
             createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
             createGradeLocal(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
-        ))
+        )
+        runBlocking { gradeLocal.saveGrades(list) }
 
-        every { mockSdk.getGrades(1) } returns Single.just(listOf(
-            createGradeApi(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
-            createGradeApi(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
-            createGradeApi(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
+        coEvery { gradeRemote.getGrades(studentMock, semesterMock) } returns (listOf(
+            createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
+            createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
+            createGradeLocal(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
         ) to emptyList())
 
-        val grades = GradeRepository(settings, gradeLocal, gradeRemote)
-            .getGrades(studentMock, semesterMock, true).blockingGet()
+        val grades = runBlocking {
+            GradeRepository(gradeLocal, gradeRemote)
+                .getGrades(studentMock, semesterMock, true)
+                .filter { it.status == Status.SUCCESS }.first().data!!
+        }
 
         assertEquals(3, grades.first.size)
     }
 
     @Test
     fun emptyLocal() {
-        gradeLocal.saveGrades(listOf())
+        runBlocking { gradeLocal.saveGrades(listOf()) }
 
-        every { mockSdk.getGrades(1) } returns Single.just(listOf(
-            createGradeApi(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
-            createGradeApi(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
-            createGradeApi(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
+        coEvery { gradeRemote.getGrades(studentMock, semesterMock) } returns (listOf(
+            createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
+            createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
+            createGradeLocal(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
         ) to emptyList())
 
-        val grades = GradeRepository(settings, gradeLocal, gradeRemote)
-            .getGrades(studentMock, semesterMock, true).blockingGet()
+        val grades = runBlocking {
+            GradeRepository(gradeLocal, gradeRemote)
+                .getGrades(studentMock, semesterMock, true)
+                .filter { it.status == Status.SUCCESS }.first().data!!
+        }
 
         assertEquals(3, grades.first.size)
     }
 
     @Test
     fun emptyRemote() {
-        gradeLocal.saveGrades(listOf(
+        val list = listOf(
             createGradeLocal(5, 3.0, of(2019, 2, 25), "Taka sama ocena"),
             createGradeLocal(3, 5.0, of(2019, 2, 26), "Jakaś inna ocena")
-        ))
+        )
+        runBlocking { gradeLocal.saveGrades(list) }
 
-        every { mockSdk.getGrades(1) } returns Single.just(emptyList<Grade>() to emptyList())
+        coEvery { gradeRemote.getGrades(studentMock, semesterMock) } returns (emptyList<Grade>() to emptyList())
 
-        val grades = GradeRepository(settings, gradeLocal, gradeRemote)
-            .getGrades(studentMock, semesterMock, true).blockingGet()
+        val grades = runBlocking {
+            GradeRepository(gradeLocal, gradeRemote)
+                .getGrades(studentMock, semesterMock, true)
+                .filter { it.status == Status.SUCCESS }.first().data!!
+        }
 
         assertEquals(0, grades.first.size)
     }
+
+    private fun getStudentMock() = Student(
+        scrapperBaseUrl = "http://fakelog.cf",
+        email = "jan@fakelog.cf",
+        certificateKey = "",
+        classId = 0,
+        className = "",
+        isCurrent = false,
+        isParent = false,
+        loginMode = Sdk.Mode.SCRAPPER.name,
+        loginType = "STANDARD",
+        mobileBaseUrl = "",
+        password = "",
+        privateKey = "",
+        registrationDate = LocalDateTime.of(2019, 2, 27, 12, 0),
+        schoolName = "",
+        schoolShortName = "test",
+        schoolSymbol = "",
+        studentId = 0,
+        studentName = "",
+        symbol = "",
+        userLoginId = 0,
+        userName = ""
+    )
 }

app/src/androidTest/java/io/github/wulkanowy/data/repositories/grade/TestGradeEntityCreator.kt

@@ -1,6 +1,6 @@
 package io.github.wulkanowy.data.repositories.grade
 
-import org.threeten.bp.LocalDate
+import java.time.LocalDate
 import io.github.wulkanowy.sdk.pojo.Grade as GradeRemote
 import io.github.wulkanowy.data.db.entities.Grade as GradeLocal
 

app/src/androidTest/java/io/github/wulkanowy/data/repositories/gradestatistics/GradeStatisticsLocalTest.kt

@@ -7,11 +7,13 @@ import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.entities.GradePointsStatistics
 import io.github.wulkanowy.data.db.entities.GradeStatistics
 import io.github.wulkanowy.data.db.entities.Semester
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate.now
+import java.time.LocalDate.now
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -35,40 +37,44 @@ class GradeStatisticsLocalTest {
 
     @Test
     fun saveAndRead_subject() {
-        gradeStatisticsLocal.saveGradesStatistics(listOf(
+        val list = listOf(
             getGradeStatistics("Matematyka", 2, 1),
             getGradeStatistics("Fizyka", 1, 2)
-        ))
+        )
+        runBlocking { gradeStatisticsLocal.saveGradesStatistics(list) }
 
-        val stats = gradeStatisticsLocal.getGradesStatistics(getSemester(), false, "Matematyka").blockingGet()
+        val stats = runBlocking { gradeStatisticsLocal.getGradesStatistics(getSemester(), false).first() }
         assertEquals(1, stats.size)
         assertEquals(stats[0].subject, "Matematyka")
     }
 
     @Test
     fun saveAndRead_all() {
-        gradeStatisticsLocal.saveGradesStatistics(listOf(
+        val list = listOf(
             getGradeStatistics("Matematyka", 2, 1),
             getGradeStatistics("Chemia", 2, 1),
             getGradeStatistics("Fizyka", 1, 2)
-        ))
+        )
+        runBlocking { gradeStatisticsLocal.saveGradesStatistics(list) }
 
-        val stats = gradeStatisticsLocal.getGradesStatistics(getSemester(), false, "Wszystkie").blockingGet()
-        assertEquals(3, stats.size)
-        assertEquals(stats[0].subject, "Wszystkie")
-        assertEquals(stats[1].subject, "Matematyka")
-        assertEquals(stats[2].subject, "Chemia")
+        val stats = runBlocking { gradeStatisticsLocal.getGradesStatistics(getSemester(), false).first() }
+        assertEquals(2, stats.size)
+//        assertEquals(3, stats.size)
+//        assertEquals(stats[0].subject, "Wszystkie") // now in main repo
+        assertEquals(stats[0].subject, "Matematyka")
+        assertEquals(stats[1].subject, "Chemia")
     }
 
     @Test
     fun saveAndRead_points() {
-        gradeStatisticsLocal.saveGradesPointsStatistics(listOf(
+        val list = listOf(
             getGradePointsStatistics("Matematyka", 2, 1),
             getGradePointsStatistics("Chemia", 2, 1),
             getGradePointsStatistics("Fizyka", 1, 2)
-        ))
+        )
+        runBlocking { gradeStatisticsLocal.saveGradesPointsStatistics(list) }
 
-        val stats = gradeStatisticsLocal.getGradesPointsStatistics(getSemester(), "Matematyka").blockingGet()
+        val stats = runBlocking { gradeStatisticsLocal.getGradesPointsStatistics(getSemester()).first() }
         with(stats[0]) {
             assertEquals(subject, "Matematyka")
             assertEquals(others, 5.0)
@@ -78,18 +84,18 @@ class GradeStatisticsLocalTest {
 
     @Test
     fun saveAndRead_subjectEmpty() {
-        gradeStatisticsLocal.saveGradesPointsStatistics(listOf())
+        runBlocking { gradeStatisticsLocal.saveGradesPointsStatistics(listOf()) }
 
-        val stats = gradeStatisticsLocal.getGradesPointsStatistics(getSemester(), "Matematyka").blockingGet()
-        assertEquals(null, stats)
+        val stats = runBlocking { gradeStatisticsLocal.getGradesPointsStatistics(getSemester()).first() }
+        assertEquals(emptyList(), stats)
     }
 
     @Test
     fun saveAndRead_allEmpty() {
-        gradeStatisticsLocal.saveGradesPointsStatistics(listOf())
+        runBlocking { gradeStatisticsLocal.saveGradesPointsStatistics(listOf()) }
 
-        val stats = gradeStatisticsLocal.getGradesPointsStatistics(getSemester(), "Wszystkie").blockingGet()
-        assertEquals(null, stats)
+        val stats = runBlocking { gradeStatisticsLocal.getGradesPointsStatistics(getSemester()).first() }
+        assertEquals(emptyList(), stats)
     }
 
     private fun getSemester(): Semester {

app/src/androidTest/java/io/github/wulkanowy/data/repositories/luckynumber/LuckyNumberLocalTest.kt

@@ -6,12 +6,14 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.entities.LuckyNumber
 import io.github.wulkanowy.data.db.entities.Student
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDateTime.now
+import java.time.LocalDate
+import java.time.LocalDateTime.now
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -23,7 +25,8 @@ class LuckyNumberLocalTest {
 
     @Before
     fun createDb() {
-        testDb = Room.inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
+        testDb = Room
+            .inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
             .build()
         luckyNumberLocal = LuckyNumberLocal(testDb.luckyNumberDao)
     }
@@ -35,14 +38,14 @@ class LuckyNumberLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        luckyNumberLocal.saveLuckyNumber(LuckyNumber(1, LocalDate.of(2019, 1, 20), 14))
+        val number = LuckyNumber(1, LocalDate.of(2019, 1, 20), 14)
+        runBlocking { luckyNumberLocal.saveLuckyNumber(number) }
 
-        val luckyNumber = luckyNumberLocal.getLuckyNumber(Student("", "", "", "", "", "", false, "", "", "", 1, 1, "", "", "", "", "", 1, false, now()),
-            LocalDate.of(2019, 1, 20)
-        ).blockingGet()
+        val student = Student("", "", "", "", "", "", false, "", "", "", 1, 1, "", "", "", "", "", "", 1, false, now())
+        val luckyNumber = runBlocking { luckyNumberLocal.getLuckyNumber(student, LocalDate.of(2019, 1, 20)).first() }
 
-        assertEquals(1, luckyNumber.studentId)
-        assertEquals(LocalDate.of(2019, 1, 20), luckyNumber.date)
-        assertEquals(14, luckyNumber.luckyNumber)
+        assertEquals(1, luckyNumber?.studentId)
+        assertEquals(LocalDate.of(2019, 1, 20), luckyNumber?.date)
+        assertEquals(14, luckyNumber?.luckyNumber)
     }
 }

app/src/androidTest/java/io/github/wulkanowy/data/repositories/recipient/RecipientLocalTest.kt

@@ -7,11 +7,12 @@ import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.entities.Recipient
 import io.github.wulkanowy.data.db.entities.ReportingUnit
 import io.github.wulkanowy.data.db.entities.Student
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDateTime
+import java.time.LocalDateTime
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -35,17 +36,21 @@ class RecipientLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        recipientLocal.saveRecipients(listOf(
+        val list = listOf(
             Recipient(1, "2rPracownik", "Kowalski Jan", "Kowalski Jan [KJ] - Pracownik (Fake123456)", 3, 4, 2, "hash"),
             Recipient(1, "3rPracownik", "Kowalska Karolina", "Kowalska Karolina [KK] - Pracownik (Fake123456)", 4, 4, 2, "hash"),
             Recipient(1, "4rPracownik", "Krupa Stanisław", "Krupa Stanisław [KS] - Uczeń (Fake123456)", 5, 4, 1, "hash")
-        ))
+        )
+        runBlocking { recipientLocal.saveRecipients(list) }
 
-        val recipients = recipientLocal.getRecipients(
-            Student("fakelog.cf", "AUTO", "", "", "", "", false, "", "", "", 1, 0, "", "", "", "", "", 1, true, LocalDateTime.now()),
-            2,
-            ReportingUnit(1, 4, "", 0, "", emptyList())
-        ).blockingGet()
+        val student = Student("fakelog.cf", "AUTO", "", "", "", "", false, "", "", "", 1, 0, "", "", "", "", "", "", 1, true, LocalDateTime.now())
+        val recipients = runBlocking {
+            recipientLocal.getRecipients(
+                student = student,
+                role = 2,
+                unit = ReportingUnit(1, 4, "", 0, "", emptyList())
+            )
+        }
 
         assertEquals(2, recipients.size)
         assertEquals(1, recipients[0].studentId)

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

@@ -4,8 +4,10 @@ import android.content.Context
 import androidx.room.Room
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
+import io.github.wulkanowy.data.TestDispatchersProvider
 import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.repositories.getStudent
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
@@ -26,7 +28,7 @@ class StudentLocalTest {
         val context = ApplicationProvider.getApplicationContext<Context>()
         testDb = Room.inMemoryDatabaseBuilder(context, AppDatabase::class.java)
             .build()
-        studentLocal = StudentLocal(testDb.studentDao, context)
+        studentLocal = StudentLocal(testDb.studentDao, TestDispatchersProvider(), context)
     }
 
     @After
@@ -36,9 +38,9 @@ class StudentLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        studentLocal.saveStudents(listOf(student)).blockingGet()
+        runBlocking { studentLocal.saveStudents(listOf(student)) }
 
-        val student = studentLocal.getCurrentStudent(true).blockingGet()
-        assertEquals("23", student.schoolSymbol)
+        val student = runBlocking { studentLocal.getCurrentStudent(true) }
+        assertEquals("23", student?.schoolSymbol)
     }
 }

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

@@ -1,7 +1,7 @@
 package io.github.wulkanowy.data.repositories.timetable
 
-import org.threeten.bp.LocalDateTime
-import org.threeten.bp.LocalDateTime.now
+import java.time.LocalDateTime
+import java.time.LocalDateTime.now
 import io.github.wulkanowy.data.db.entities.Timetable as TimetableLocal
 import io.github.wulkanowy.sdk.pojo.Timetable as TimetableRemote
 

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

@@ -5,12 +5,14 @@ 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.entities.Semester
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDateTime.of
+import java.time.LocalDate
+import java.time.LocalDateTime.of
 import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
@@ -34,17 +36,21 @@ class TimetableLocalTest {
 
     @Test
     fun saveAndReadTest() {
-        timetableDb.saveTimetable(listOf(
+        val list = listOf(
             createTimetableLocal(of(2018, 9, 10, 0, 0, 0), 1),
             createTimetableLocal(of(2018, 9, 14, 0, 0, 0), 1),
             createTimetableLocal(of(2018, 9, 17, 0, 0, 0), 1)
-        ))
+        )
+        runBlocking { timetableDb.saveTimetable(list) }
 
-        val exams = timetableDb.getTimetable(
-            Semester(1, 2, "", 1, 1, 2019, LocalDate.now(), LocalDate.now(), 1, 1),
-            LocalDate.of(2018, 9, 10),
-            LocalDate.of(2018, 9, 14)
-        ).blockingGet()
+        val semester = Semester(1, 2, "", 1, 1, 2019, LocalDate.now(), LocalDate.now(), 1, 1)
+        val exams = runBlocking {
+            timetableDb.getTimetable(
+                semester = semester,
+                startDate = LocalDate.of(2018, 9, 10),
+                endDate = LocalDate.of(2018, 9, 14)
+            ).first()
+        }
 
         assertEquals(2, exams.size)
         assertEquals(exams[0].date, LocalDate.of(2018, 9, 10))

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

@@ -5,74 +5,48 @@ import androidx.room.Room
 import androidx.test.core.app.ApplicationProvider.getApplicationContext
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.SdkSuppress
-import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingSettings
+import io.github.wulkanowy.data.Status
 import io.github.wulkanowy.data.db.AppDatabase
-import io.github.wulkanowy.data.db.entities.Semester
-import io.github.wulkanowy.data.db.entities.Student
-import io.github.wulkanowy.data.repositories.TestInternetObservingStrategy
+import io.github.wulkanowy.data.repositories.getSemester
 import io.github.wulkanowy.data.repositories.getStudent
 import io.github.wulkanowy.services.alarm.TimetableNotificationSchedulerHelper
-import io.github.wulkanowy.sdk.Sdk
 import io.mockk.MockKAnnotations
-import io.mockk.every
+import io.mockk.coEvery
 import io.mockk.impl.annotations.MockK
-import io.mockk.mockk
-import io.reactivex.Single
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDateTime.of
+import java.time.LocalDate
+import java.time.LocalDateTime.of
 import kotlin.test.assertEquals
 
 @SdkSuppress(minSdkVersion = P)
 @RunWith(AndroidJUnit4::class)
 class TimetableRepositoryTest {
 
-    @MockK
-    private lateinit var mockSdk: Sdk
-
-    private val settings = InternetObservingSettings.builder()
-        .strategy(TestInternetObservingStrategy())
-        .build()
-
-    @MockK
-    private lateinit var studentMock: Student
-
-    private val student = getStudent()
-
-    @MockK
-    private lateinit var semesterMock: Semester
-
-    @MockK
+    @MockK(relaxed = true)
     private lateinit var timetableNotificationSchedulerHelper: TimetableNotificationSchedulerHelper
 
+    @MockK
     private lateinit var timetableRemote: TimetableRemote
 
     private lateinit var timetableLocal: TimetableLocal
 
     private lateinit var testDb: AppDatabase
 
+    private val student = getStudent()
+
+    private val semester = getSemester()
+
     @Before
     fun initApi() {
         MockKAnnotations.init(this)
         testDb = Room.inMemoryDatabaseBuilder(getApplicationContext(), AppDatabase::class.java).build()
         timetableLocal = TimetableLocal(testDb.timetableDao)
-        timetableRemote = TimetableRemote(mockSdk)
-
-        every { timetableNotificationSchedulerHelper.scheduleNotifications(any(), any()) } returns mockk()
-        every { timetableNotificationSchedulerHelper.cancelScheduled(any(), any()) } returns mockk()
-
-        every { studentMock.studentId } returns 1
-        every { studentMock.studentName } returns "Jan Kowalski"
-
-        every { semesterMock.studentId } returns 1
-        every { semesterMock.diaryId } returns 2
-        every { semesterMock.schoolYear } returns 2019
-        every { semesterMock.semesterId } returns 1
-
-        every { mockSdk.switchDiary(any(), any()) } returns mockSdk
     }
 
     @After
@@ -82,23 +56,31 @@ class TimetableRepositoryTest {
 
     @Test
     fun copyRoomToCompletedFromPrevious() {
-        timetableLocal.saveTimetable(listOf(
-            createTimetableLocal(of(2019, 3, 5, 8, 0), 1, "123", "Przyroda"),
-            createTimetableLocal(of(2019, 3, 5, 8, 50), 2, "321", "Religia"),
-            createTimetableLocal(of(2019, 3, 5, 9, 40), 3, "213", "W-F"),
-            createTimetableLocal(of(2019, 3, 5, 10, 30),3, "213", "W-F", "Jan Kowalski")
-        ))
+        runBlocking {
+            timetableLocal.saveTimetable(listOf(
+                createTimetableLocal(of(2019, 3, 5, 8, 0), 1, "123", "Przyroda"),
+                createTimetableLocal(of(2019, 3, 5, 8, 50), 2, "321", "Religia"),
+                createTimetableLocal(of(2019, 3, 5, 9, 40), 3, "213", "W-F"),
+                createTimetableLocal(of(2019, 3, 5, 10, 30), 3, "213", "W-F", "Jan Kowalski")
+            ))
+        }
 
-        every { mockSdk.getTimetable(any(), any()) } returns Single.just(listOf(
-            createTimetableRemote(of(2019, 3, 5, 8, 0), 1, "", "Przyroda"),
-            createTimetableRemote(of(2019, 3, 5, 8, 50), 2, "", "Religia"),
-            createTimetableRemote(of(2019, 3, 5, 9, 40), 3, "", "W-F"),
-            createTimetableRemote(of(2019, 3, 5, 10, 30), 4, "", "W-F")
-        ))
+        coEvery { timetableRemote.getTimetable(student, semester, any(), any()) } returns listOf(
+            createTimetableLocal(of(2019, 3, 5, 8, 0), 1, "", "Przyroda"),
+            createTimetableLocal(of(2019, 3, 5, 8, 50), 2, "", "Religia"),
+            createTimetableLocal(of(2019, 3, 5, 9, 40), 3, "", "W-F"),
+            createTimetableLocal(of(2019, 3, 5, 10, 30), 4, "", "W-F")
+        )
 
-        val lessons = TimetableRepository(settings, timetableLocal, timetableRemote, timetableNotificationSchedulerHelper)
-            .getTimetable(student, semesterMock, LocalDate.of(2019, 3, 5), LocalDate.of(2019, 3, 5), true)
-            .blockingGet()
+        val lessons = runBlocking {
+            TimetableRepository(timetableLocal, timetableRemote, timetableNotificationSchedulerHelper).getTimetable(
+                student = student,
+                semester = semester,
+                start = LocalDate.of(2019, 3, 5),
+                end = LocalDate.of(2019, 3, 5),
+                forceRefresh = true
+            ).filter { it.status == Status.SUCCESS }.first().data.orEmpty()
+        }
 
         assertEquals(4, lessons.size)
         assertEquals("123", lessons[0].room)
@@ -108,7 +90,7 @@ class TimetableRepositoryTest {
 
     @Test
     fun copyTeacherToCompletedFromPrevious() {
-        timetableLocal.saveTimetable(listOf(
+        val list = listOf(
             createTimetableLocal(of(2019, 12, 23, 8, 0), 1, "123", "Matematyka", "Paweł Poniedziałkowski", false),
             createTimetableLocal(of(2019, 12, 23, 8, 50), 2, "124", "Matematyka", "Paweł Poniedziałkowski", false),
             createTimetableLocal(of(2019, 12, 23, 9, 40), 3, "125", "Język polski", "Joanna Wtorkowska", true),
@@ -123,28 +105,35 @@ class TimetableRepositoryTest {
             createTimetableLocal(of(2019, 12, 25, 8, 50), 2, "124", "Matematyka", "", false),
             createTimetableLocal(of(2019, 12, 25, 9, 40), 3, "125", "Matematyka", "", true),
             createTimetableLocal(of(2019, 12, 25, 10, 40), 4, "126", "Matematyka", "", true)
-        ))
+        )
+        runBlocking { timetableLocal.saveTimetable(list) }
 
-        every { mockSdk.getTimetable(any(), any()) } returns Single.just(listOf(
-            createTimetableRemote(of(2019, 12, 23, 8, 0), 1, "123", "Matematyka", "Paweł Poniedziałkowski", false),
-            createTimetableRemote(of(2019, 12, 23, 8, 50), 2, "124", "Matematyka", "Jakub Wtorkowski", true),
-            createTimetableRemote(of(2019, 12, 23, 9, 40), 3, "125", "Język polski", "Joanna Poniedziałkowska", false),
-            createTimetableRemote(of(2019, 12, 23, 10, 40), 4, "126", "Język polski", "Joanna Wtorkowska", true),
+        coEvery { timetableRemote.getTimetable(student, semester, any(), any()) } returns listOf(
+            createTimetableLocal(of(2019, 12, 23, 8, 0), 1, "123", "Matematyka", "Paweł Poniedziałkowski", false),
+            createTimetableLocal(of(2019, 12, 23, 8, 50), 2, "124", "Matematyka", "Jakub Wtorkowski", true),
+            createTimetableLocal(of(2019, 12, 23, 9, 40), 3, "125", "Język polski", "Joanna Poniedziałkowska", false),
+            createTimetableLocal(of(2019, 12, 23, 10, 40), 4, "126", "Język polski", "Joanna Wtorkowska", true),
 
-            createTimetableRemote(of(2019, 12, 24, 8, 0), 1, "123", "Język polski", "", false),
-            createTimetableRemote(of(2019, 12, 24, 8, 50), 2, "124", "Język polski", "", true),
-            createTimetableRemote(of(2019, 12, 24, 9, 40), 3, "125", "Język polski", "", false),
-            createTimetableRemote(of(2019, 12, 24, 10, 40), 4, "126", "Język polski", "", true),
+            createTimetableLocal(of(2019, 12, 24, 8, 0), 1, "123", "Język polski", "", false),
+            createTimetableLocal(of(2019, 12, 24, 8, 50), 2, "124", "Język polski", "", true),
+            createTimetableLocal(of(2019, 12, 24, 9, 40), 3, "125", "Język polski", "", false),
+            createTimetableLocal(of(2019, 12, 24, 10, 40), 4, "126", "Język polski", "", true),
 
-            createTimetableRemote(of(2019, 12, 25, 8, 0), 1, "123", "Matematyka", "Paweł Środowski", false),
-            createTimetableRemote(of(2019, 12, 25, 8, 50), 2, "124", "Matematyka", "Paweł Czwartkowski", true),
-            createTimetableRemote(of(2019, 12, 25, 9, 40), 3, "125", "Matematyka", "Paweł Środowski", false),
-            createTimetableRemote(of(2019, 12, 25, 10, 40), 4, "126", "Matematyka", "Paweł Czwartkowski", true)
-        ))
+            createTimetableLocal(of(2019, 12, 25, 8, 0), 1, "123", "Matematyka", "Paweł Środowski", false),
+            createTimetableLocal(of(2019, 12, 25, 8, 50), 2, "124", "Matematyka", "Paweł Czwartkowski", true),
+            createTimetableLocal(of(2019, 12, 25, 9, 40), 3, "125", "Matematyka", "Paweł Środowski", false),
+            createTimetableLocal(of(2019, 12, 25, 10, 40), 4, "126", "Matematyka", "Paweł Czwartkowski", true)
+        )
 
-        val lessons = TimetableRepository(settings, timetableLocal, timetableRemote, timetableNotificationSchedulerHelper)
-            .getTimetable(student, semesterMock, LocalDate.of(2019, 12, 23), LocalDate.of(2019, 12, 25), true)
-            .blockingGet()
+        val lessons = runBlocking {
+            TimetableRepository(timetableLocal, timetableRemote, timetableNotificationSchedulerHelper).getTimetable(
+                student = student,
+                semester = semester,
+                start = LocalDate.of(2019, 12, 23),
+                end = LocalDate.of(2019, 12, 25),
+                forceRefresh = true
+            ).filter { it.status == Status.SUCCESS }.first().data.orEmpty()
+        }
 
         assertEquals(12, lessons.size)
 

app/src/debug/agconnect-services.json

@@ -0,0 +1,33 @@
+{
+	"agcgw":{
+		"backurl":"connect-dre.dbankcloud.cn",
+		"url":"connect-dre.hispace.hicloud.com"
+	},
+	"client":{
+		"cp_id":"890048000024105546",
+		"product_id":"",
+		"client_id":"",
+		"client_secret":"",
+		"app_id":"101440411",
+		"package_name":"io.github.wulkanowy.dev",
+		"api_key":""
+	},
+	"service":{
+		"analytics":{
+			"collector_url":"datacollector-dre.dt.hicloud.com,datacollector-dre.dt.dbankcloud.cn",
+			"resource_id":"p1",
+			"channel_id":""
+		},
+		"search":{
+			"url":"https://search-dre.cloud.huawei.com"
+		},
+		"cloudstorage":{
+			"storage_url":"https://ops-dre.agcstorage.link"
+		},
+		"ml":{
+			"mlservice_url":"ml-api-dre.ai.dbankcloud.com,ml-api-dre.ai.dbankcloud.cn"
+		}
+	},
+	"region":"DE",
+	"configuration_version":"1.0"
+}

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

@@ -6,7 +6,7 @@ import javax.inject.Singleton
 
 @Singleton
 @Suppress("UNUSED_PARAMETER")
-class FirebaseAnalyticsHelper @Inject constructor() {
+class AnalyticsHelper @Inject constructor() {
 
     fun logEvent(name: String, vararg params: Pair<String, Any?>) {
         // do nothing

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

@@ -8,6 +8,6 @@ open class TimberTreeNoOp : Timber.Tree() {
     override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {}
 }
 
-class CrashlyticsTree : TimberTreeNoOp()
+class CrashLogTree : TimberTreeNoOp()
 
-class CrashlyticsExceptionTree : TimberTreeNoOp()
+class CrashLogExceptionTree : TimberTreeNoOp()

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

@@ -0,0 +1,17 @@
+package io.github.wulkanowy.utils
+
+import android.app.Activity
+import android.view.View
+import javax.inject.Inject
+
+@Suppress("UNUSED_PARAMETER")
+class UpdateHelper @Inject constructor() {
+
+    lateinit var messageContainer: View
+
+    fun checkAndInstallUpdates(activity: Activity) {}
+
+    fun onActivityResult(requestCode: Int, resultCode: Int) {}
+
+    fun onResume(activity: Activity) {}
+}

app/src/hms/java/io/github/wulkanowy/utils/AnalyticsHelper.kt

@@ -0,0 +1,38 @@
+package io.github.wulkanowy.utils
+
+import android.app.Activity
+import android.content.Context
+import android.os.Bundle
+import com.huawei.hms.analytics.HiAnalytics
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AnalyticsHelper @Inject constructor(
+    @ApplicationContext private val context: Context
+) {
+
+    private val analytics by lazy { HiAnalytics.getInstance(context) }
+
+    fun logEvent(name: String, vararg params: Pair<String, Any?>) {
+        Bundle().apply {
+            params.forEach {
+                if (it.second == null) return@forEach
+                when (it.second) {
+                    is String, is String? -> putString(it.first, it.second as String)
+                    is Int, is Int? -> putInt(it.first, it.second as Int)
+                    is Boolean, is Boolean? -> putBoolean(it.first, it.second as Boolean)
+                }
+            }
+            analytics.onEvent(name, this)
+        }
+    }
+
+    fun setCurrentScreen(activity: Activity, name: String?) {
+        analytics.onEvent("screen_view", Bundle().apply {
+            putString("screen_name", name)
+            putString("screen_class", activity::class.simpleName)
+        })
+    }
+}

app/src/hms/java/io/github/wulkanowy/utils/CrashLogUtils.kt

@@ -0,0 +1,52 @@
+package io.github.wulkanowy.utils
+
+import android.util.Log
+import com.huawei.agconnect.crash.AGConnectCrash
+import fr.bipi.tressence.base.FormatterPriorityTree
+import fr.bipi.tressence.common.StackTraceRecorder
+import io.github.wulkanowy.sdk.exception.FeatureNotAvailableException
+import io.github.wulkanowy.sdk.scrapper.exception.FeatureDisabledException
+import java.io.InterruptedIOException
+import java.net.SocketTimeoutException
+import java.net.UnknownHostException
+
+class CrashLogTree : FormatterPriorityTree(Log.VERBOSE) {
+
+    private val connectCrash by lazy { AGConnectCrash.getInstance() }
+
+    override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
+        if (skipLog(priority, tag, message, t)) return
+
+        connectCrash.log(format(priority, tag, message))
+    }
+}
+
+class CrashLogExceptionTree : FormatterPriorityTree(Log.ERROR) {
+
+    private val connectCrash by lazy { AGConnectCrash.getInstance() }
+
+    override fun skipLog(priority: Int, tag: String?, message: String, t: Throwable?): Boolean {
+        return when (t) {
+            is FeatureDisabledException,
+            is FeatureNotAvailableException,
+            is UnknownHostException,
+            is SocketTimeoutException,
+            is InterruptedIOException -> true
+            else -> super.skipLog(priority, tag, message, t)
+        }
+    }
+
+    override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
+        if (skipLog(priority, tag, message, t)) return
+
+        connectCrash.setCustomKey("priority", priority)
+        connectCrash.setCustomKey("tag", tag.orEmpty())
+        connectCrash.setCustomKey("message", message)
+        connectCrash.log(priority, t?.stackTraceToString())
+        if (t != null) {
+            connectCrash.log(priority, t.stackTraceToString())
+        } else {
+            connectCrash.log(priority, StackTraceRecorder(format(priority, tag, message)).stackTraceToString())
+        }
+    }
+}

app/src/hms/java/io/github/wulkanowy/utils/UpdateHelper.kt

@@ -0,0 +1,17 @@
+package io.github.wulkanowy.utils
+
+import android.app.Activity
+import android.view.View
+import javax.inject.Inject
+
+@Suppress("UNUSED_PARAMETER")
+class UpdateHelper @Inject constructor() {
+
+    lateinit var messageContainer: View
+
+    fun checkAndInstallUpdates(activity: Activity) {}
+
+    fun onActivityResult(requestCode: Int, resultCode: Int) {}
+
+    fun onResume(activity: Activity) {}
+}

app/src/main/AndroidManifest.xml

@@ -18,8 +18,7 @@
         android:supportsRtl="false"
         android:theme="@style/WulkanowyTheme"
         android:usesCleartextTraffic="true"
-        tools:ignore="GoogleAppIndexingWarning,UnusedAttribute"
-        tools:replace="android:supportsRtl,android:allowBackup">
+        tools:ignore="GoogleAppIndexingWarning,UnusedAttribute">
         <activity
             android:name=".ui.modules.splash.SplashActivity"
             android:screenOrientation="portrait"
@@ -111,6 +110,11 @@
                 android:resource="@xml/provider_paths" />
         </provider>
 
+        <meta-data
+            android:name="install_channel"
+            android:value="${install_channel}">
+        </meta-data>
+
         <!-- workaround for https://github.com/firebase/firebase-android-sdk/issues/473 enabled:false -->
         <!-- https://firebase.googleblog.com/2017/03/take-control-of-your-firebase-init-on.html -->
         <provider

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

@@ -1,34 +1,30 @@
 package io.github.wulkanowy
 
+import android.app.Application
 import android.content.Context
 import android.util.Log.DEBUG
 import android.util.Log.INFO
 import android.util.Log.VERBOSE
+import androidx.hilt.work.HiltWorkerFactory
 import androidx.multidex.MultiDex
 import androidx.work.Configuration
-import com.jakewharton.threetenabp.AndroidThreeTen
 import com.yariksoffice.lingver.Lingver
-import dagger.android.AndroidInjector
-import dagger.android.support.DaggerApplication
+import dagger.hilt.android.HiltAndroidApp
 import fr.bipi.tressence.file.FileLoggerTree
-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.CrashlyticsExceptionTree
-import io.github.wulkanowy.utils.CrashlyticsTree
+import io.github.wulkanowy.utils.CrashLogExceptionTree
+import io.github.wulkanowy.utils.CrashLogTree
 import io.github.wulkanowy.utils.DebugLogTree
-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(), Configuration.Provider {
+@HiltAndroidApp
+class WulkanowyApp : Application(), Configuration.Provider {
 
     @Inject
-    lateinit var workerFactory: SyncWorkerFactory
+    lateinit var workerFactory: HiltWorkerFactory
 
     @Inject
     lateinit var themeManager: ThemeManager
@@ -43,8 +39,6 @@ class WulkanowyApp : DaggerApplication(), Configuration.Provider {
 
     override fun onCreate() {
         super.onCreate()
-        AndroidThreeTen.init(this)
-        RxJavaPlugins.setErrorHandler(::onError)
         Lingver.init(this)
         themeManager.applyDefaultTheme()
 
@@ -62,24 +56,12 @@ class WulkanowyApp : DaggerApplication(), Configuration.Provider {
                 .build()
             )
         } else {
-            Timber.plant(CrashlyticsExceptionTree())
-            Timber.plant(CrashlyticsTree())
+            Timber.plant(CrashLogExceptionTree())
+            Timber.plant(CrashLogTree())
         }
         registerActivityLifecycleCallbacks(ActivityLifecycleLogger())
     }
 
-    private fun onError(error: Throwable) {
-        //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)

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

@@ -8,10 +8,11 @@ import androidx.preference.PreferenceManager
 import com.chuckerteam.chucker.api.ChuckerCollector
 import com.chuckerteam.chucker.api.ChuckerInterceptor
 import com.chuckerteam.chucker.api.RetentionManager
-import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingSettings
-import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.strategy.WalledGardenInternetObservingStrategy
 import dagger.Module
 import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.components.ApplicationComponent
+import dagger.hilt.android.qualifiers.ApplicationContext
 import io.github.wulkanowy.data.db.AppDatabase
 import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
@@ -20,32 +21,29 @@ import timber.log.Timber
 import javax.inject.Singleton
 
 @Module
+@InstallIn(ApplicationComponent::class)
 internal class RepositoryModule {
 
     @Singleton
     @Provides
-    fun provideInternetObservingSettings(): InternetObservingSettings {
-        return InternetObservingSettings.builder()
-            .strategy(WalledGardenInternetObservingStrategy())
-            .build()
-    }
-
-    @Singleton
-    @Provides
-    fun provideSdk(chuckerCollector: ChuckerCollector, context: Context): Sdk {
+    fun provideSdk(chuckerCollector: ChuckerCollector, @ApplicationContext context: Context): Sdk {
         return Sdk().apply {
             androidVersion = android.os.Build.VERSION.RELEASE
             buildTag = android.os.Build.MODEL
             setSimpleHttpLogger { Timber.d(it) }
 
             // for debug only
-            addInterceptor(ChuckerInterceptor(context, chuckerCollector), true)
+            addInterceptor(ChuckerInterceptor(
+                context = context,
+                collector = chuckerCollector,
+                alwaysReadResponseBody = true
+            ), true)
         }
     }
 
     @Singleton
     @Provides
-    fun provideChuckerCollector(context: Context, prefRepository: PreferencesRepository): ChuckerCollector {
+    fun provideChuckerCollector(@ApplicationContext context: Context, prefRepository: PreferencesRepository): ChuckerCollector {
         return ChuckerCollector(
             context = context,
             showNotification = prefRepository.isDebugNotificationEnable,
@@ -55,19 +53,19 @@ internal class RepositoryModule {
 
     @Singleton
     @Provides
-    fun provideDatabase(context: Context, sharedPrefProvider: SharedPrefProvider) = AppDatabase.newInstance(context, sharedPrefProvider)
+    fun provideDatabase(@ApplicationContext context: Context, sharedPrefProvider: SharedPrefProvider) = AppDatabase.newInstance(context, sharedPrefProvider)
 
     @Singleton
     @Provides
-    fun provideResources(context: Context): Resources = context.resources
+    fun provideResources(@ApplicationContext context: Context): Resources = context.resources
 
     @Singleton
     @Provides
-    fun provideAssets(context: Context): AssetManager = context.assets
+    fun provideAssets(@ApplicationContext context: Context): AssetManager = context.assets
 
     @Singleton
     @Provides
-    fun provideSharedPref(context: Context): SharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
+    fun provideSharedPref(@ApplicationContext context: Context): SharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
 
     @Singleton
     @Provides

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

@@ -0,0 +1,23 @@
+package io.github.wulkanowy.data
+
+data class Resource<T>(val status: Status, val data: T?, val error: Throwable?) {
+    companion object {
+        fun <T> success(data: T?): Resource<T> {
+            return Resource(Status.SUCCESS, data, null)
+        }
+
+        fun <T> error(error: Throwable?, data: T? = null): Resource<T> {
+            return Resource(Status.ERROR, data, error)
+        }
+
+        fun <T> loading(data: T? = null): Resource<T> {
+            return Resource(Status.LOADING, data, null)
+        }
+    }
+}
+
+enum class Status {
+    LOADING,
+    SUCCESS,
+    ERROR
+}

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

@@ -69,6 +69,7 @@ import io.github.wulkanowy.data.db.migrations.Migration23
 import io.github.wulkanowy.data.db.migrations.Migration24
 import io.github.wulkanowy.data.db.migrations.Migration25
 import io.github.wulkanowy.data.db.migrations.Migration26
+import io.github.wulkanowy.data.db.migrations.Migration27
 import io.github.wulkanowy.data.db.migrations.Migration3
 import io.github.wulkanowy.data.db.migrations.Migration4
 import io.github.wulkanowy.data.db.migrations.Migration5
@@ -111,7 +112,7 @@ import javax.inject.Singleton
 abstract class AppDatabase : RoomDatabase() {
 
     companion object {
-        const val VERSION_SCHEMA = 26
+        const val VERSION_SCHEMA = 27
 
         fun getMigrations(sharedPrefProvider: SharedPrefProvider): Array<Migration> {
             return arrayOf(
@@ -139,7 +140,8 @@ abstract class AppDatabase : RoomDatabase() {
                 Migration23(),
                 Migration24(),
                 Migration25(),
-                Migration26()
+                Migration26(),
+                Migration27(),
             )
         }
 

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

@@ -1,21 +1,31 @@
 package io.github.wulkanowy.data.db
 
 import androidx.room.TypeConverter
-import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
-import org.threeten.bp.DateTimeUtils
-import org.threeten.bp.Instant
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDateTime
-import org.threeten.bp.Month
-import org.threeten.bp.ZoneOffset
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.Types
+import io.github.wulkanowy.data.db.adapters.PairAdapterFactory
+import java.time.Instant
+import java.time.LocalDate
+import java.time.LocalDateTime
+import java.time.Month
+import java.time.ZoneOffset
 import java.util.Date
 
 class Converters {
 
+    private val moshi by lazy { Moshi.Builder().add(PairAdapterFactory).build() }
+
+    private val integerListAdapter by lazy {
+        moshi.adapter<List<Int>>(Types.newParameterizedType(List::class.java, Integer::class.java))
+    }
+
+    private val stringListPairAdapter by lazy {
+        moshi.adapter<List<Pair<String, String>>>(Types.newParameterizedType(List::class.java, Pair::class.java, String::class.java, String::class.java))
+    }
+
     @TypeConverter
     fun timestampToDate(value: Long?): LocalDate? = value?.run {
-        DateTimeUtils.toInstant(Date(value)).atZone(ZoneOffset.UTC).toLocalDate()
+        Date(value).toInstant().atZone(ZoneOffset.UTC).toLocalDate()
     }
 
     @TypeConverter
@@ -40,22 +50,22 @@ class Converters {
     fun intToMonth(value: Int?) = value?.let { Month.of(it) }
 
     @TypeConverter
-    fun intListToGson(list: List<Int>): String {
-        return Gson().toJson(list)
+    fun intListToJson(list: List<Int>): String {
+        return integerListAdapter.toJson(list)
     }
 
     @TypeConverter
-    fun gsonToIntList(value: String): List<Int> {
-        return Gson().fromJson(value, object : TypeToken<List<Int>>() {}.type)
+    fun jsonToIntList(value: String): List<Int> {
+        return integerListAdapter.fromJson(value).orEmpty()
     }
 
     @TypeConverter
-    fun stringPairListToGson(list: List<Pair<String, String>>): String {
-        return Gson().toJson(list)
+    fun stringPairListToJson(list: List<Pair<String, String>>): String {
+        return stringListPairAdapter.toJson(list)
     }
 
     @TypeConverter
-    fun gsonToStringPairList(value: String): List<Pair<String, String>> {
-        return Gson().fromJson(value, object : TypeToken<List<Pair<String, String>>>() {}.type)
+    fun jsonToStringPairList(value: String): List<Pair<String, String>> {
+        return stringListPairAdapter.fromJson(value).orEmpty()
     }
 }

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

@@ -0,0 +1,68 @@
+package io.github.wulkanowy.data.db.adapters
+
+import com.squareup.moshi.JsonAdapter
+import com.squareup.moshi.JsonReader
+import com.squareup.moshi.JsonWriter
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.Types
+import java.lang.reflect.ParameterizedType
+import java.lang.reflect.Type
+
+object PairAdapterFactory : JsonAdapter.Factory {
+
+    override fun create(type: Type, annotations: MutableSet<out Annotation>, moshi: Moshi): JsonAdapter<*>? {
+        if (type !is ParameterizedType || List::class.java != type.rawType) return null
+        if (type.actualTypeArguments[0] != Pair::class.java) return null
+
+        val listType = Types.newParameterizedType(List::class.java, Map::class.java, String::class.java)
+        val listAdapter = moshi.adapter<List<Map<String, String>>>(listType)
+
+        val mapType = Types.newParameterizedType(MutableMap::class.java, String::class.java, String::class.java)
+        val mapAdapter = moshi.adapter<Map<String, String>>(mapType)
+
+        return PairAdapter(listAdapter, mapAdapter)
+    }
+
+    private class PairAdapter(
+        private val listAdapter: JsonAdapter<List<Map<String, String>>>,
+        private val mapAdapter: JsonAdapter<Map<String, String>>,
+    ) : JsonAdapter<List<Pair<String, String>>>() {
+
+        override fun toJson(writer: JsonWriter, value: List<Pair<String, String>>?) {
+            writer.beginArray()
+            value?.forEach {
+                writer.beginObject()
+                writer.name("first").value(it.first)
+                writer.name("second").value(it.second)
+                writer.endObject()
+            }
+            writer.endArray()
+        }
+
+        override fun fromJson(reader: JsonReader): List<Pair<String, String>>? {
+            return if (reader.peek() == JsonReader.Token.BEGIN_OBJECT) deserializeMoshiMap(reader)
+            else deserializeGsonPair(reader)
+        }
+
+        // for compatibility with 0.21.0
+        private fun deserializeMoshiMap(reader: JsonReader): List<Pair<String, String>>? {
+            val map = mapAdapter.fromJson(reader) ?: return null
+
+            return map.entries.map {
+                it.key to it.value
+            }
+        }
+
+        private fun deserializeGsonPair(reader: JsonReader): List<Pair<String, String>>? {
+            val list = listAdapter.fromJson(reader) ?: return null
+
+            return list.map {
+                require(it.size == 2) {
+                    "pair with more or less than two elements: $list"
+                }
+
+                it["first"].orEmpty() to it["second"].orEmpty()
+            }
+        }
+    }
+}

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Attendance
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Singleton
 
 @Singleton
@@ -12,5 +12,5 @@ import javax.inject.Singleton
 interface AttendanceDao : BaseDao<Attendance> {
 
     @Query("SELECT * FROM Attendance WHERE diary_id = :diaryId AND student_id = :studentId AND date >= :from AND date <= :end")
-    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Maybe<List<Attendance>>
+    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Flow<List<Attendance>>
 }

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

@@ -3,11 +3,11 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.AttendanceSummary
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 
 @Dao
 interface AttendanceSummaryDao : BaseDao<AttendanceSummary> {
 
     @Query("SELECT * FROM AttendanceSummary WHERE diary_id = :diaryId AND student_id = :studentId AND subject_id = :subjectId")
-    fun loadAll(diaryId: Int, studentId: Int, subjectId: Int): Maybe<List<AttendanceSummary>>
+    fun loadAll(diaryId: Int, studentId: Int, subjectId: Int): Flow<List<AttendanceSummary>>
 }

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

@@ -7,11 +7,11 @@ import androidx.room.Update
 interface BaseDao<T> {
 
     @Insert
-    fun insertAll(items: List<T>): List<Long>
+    suspend fun insertAll(items: List<T>): List<Long>
 
     @Update
-    fun updateAll(items: List<T>)
+    suspend fun updateAll(items: List<T>)
 
     @Delete
-    fun deleteAll(items: List<T>)
+    suspend fun deleteAll(items: List<T>)
 }

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.CompletedLesson
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Singleton
 
 @Singleton
@@ -12,5 +12,5 @@ import javax.inject.Singleton
 interface CompletedLessonsDao : BaseDao<CompletedLesson> {
 
     @Query("SELECT * FROM CompletedLesson WHERE diary_id = :diaryId AND student_id = :studentId AND date >= :from AND date <= :end")
-    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Maybe<List<CompletedLesson>>
+    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Flow<List<CompletedLesson>>
 }

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Exam
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Singleton
 
 @Singleton
@@ -12,5 +12,5 @@ import javax.inject.Singleton
 interface ExamDao : BaseDao<Exam> {
 
     @Query("SELECT * FROM Exams WHERE diary_id = :diaryId AND student_id = :studentId AND date >= :from AND date <= :end")
-    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Maybe<List<Exam>>
+    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Flow<List<Exam>>
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Grade
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,6 +11,5 @@ import javax.inject.Singleton
 interface GradeDao : BaseDao<Grade> {
 
     @Query("SELECT * FROM Grades WHERE semester_id = :semesterId AND student_id = :studentId")
-    fun loadAll(semesterId: Int, studentId: Int): Maybe<List<Grade>>
-
+    fun loadAll(semesterId: Int, studentId: Int): Flow<List<Grade>>
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.GradePointsStatistics
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,8 +11,8 @@ import javax.inject.Singleton
 interface GradePointsStatisticsDao : BaseDao<GradePointsStatistics> {
 
     @Query("SELECT * FROM GradesPointsStatistics WHERE student_id = :studentId AND semester_id = :semesterId AND subject = :subjectName")
-    fun loadSubject(semesterId: Int, studentId: Int, subjectName: String): Maybe<List<GradePointsStatistics>>
+    fun loadSubject(semesterId: Int, studentId: Int, subjectName: String): Flow<List<GradePointsStatistics>>
 
     @Query("SELECT * FROM GradesPointsStatistics WHERE student_id = :studentId AND semester_id = :semesterId")
-    fun loadAll(semesterId: Int, studentId: Int): Maybe<List<GradePointsStatistics>>
+    fun loadAll(semesterId: Int, studentId: Int): Flow<List<GradePointsStatistics>>
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.GradeStatistics
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,8 +11,8 @@ import javax.inject.Singleton
 interface GradeStatisticsDao : BaseDao<GradeStatistics> {
 
     @Query("SELECT * FROM GradesStatistics WHERE student_id = :studentId AND semester_id = :semesterId AND subject = :subjectName AND is_semester = :isSemester")
-    fun loadSubject(semesterId: Int, studentId: Int, subjectName: String, isSemester: Boolean): Maybe<List<GradeStatistics>>
+    fun loadSubject(semesterId: Int, studentId: Int, subjectName: String, isSemester: Boolean): Flow<List<GradeStatistics>>
 
     @Query("SELECT * FROM GradesStatistics WHERE student_id = :studentId AND semester_id = :semesterId AND is_semester = :isSemester")
-    fun loadAll(semesterId: Int, studentId: Int, isSemester: Boolean): Maybe<List<GradeStatistics>>
+    fun loadAll(semesterId: Int, studentId: Int, isSemester: Boolean): Flow<List<GradeStatistics>>
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.GradeSummary
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,5 +11,5 @@ import javax.inject.Singleton
 interface GradeSummaryDao : BaseDao<GradeSummary> {
 
     @Query("SELECT * FROM GradesSummary WHERE student_id = :studentId AND semester_id = :semesterId")
-    fun loadAll(semesterId: Int, studentId: Int): Maybe<List<GradeSummary>>
+    fun loadAll(semesterId: Int, studentId: Int): Flow<List<GradeSummary>>
 }

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Homework
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Singleton
 
 @Singleton
@@ -12,5 +12,5 @@ import javax.inject.Singleton
 interface HomeworkDao : BaseDao<Homework> {
 
     @Query("SELECT * FROM Homework WHERE semester_id = :semesterId AND student_id = :studentId AND date >= :from AND date <= :end")
-    fun loadAll(semesterId: Int, studentId: Int, from: LocalDate, end: LocalDate): Maybe<List<Homework>>
+    fun loadAll(semesterId: Int, studentId: Int, from: LocalDate, end: LocalDate): Flow<List<Homework>>
 }

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.LuckyNumber
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Singleton
 
 @Singleton
@@ -12,5 +12,5 @@ import javax.inject.Singleton
 interface LuckyNumberDao : BaseDao<LuckyNumber> {
 
     @Query("SELECT * FROM LuckyNumbers WHERE student_id = :studentId AND date = :date")
-    fun load(studentId: Int, date: LocalDate): Maybe<LuckyNumber>
+    fun load(studentId: Int, date: LocalDate): Flow<LuckyNumber?>
 }

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

@@ -9,5 +9,5 @@ import io.github.wulkanowy.data.db.entities.MessageAttachment
 interface MessageAttachmentDao : BaseDao<MessageAttachment> {
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insertAttachments(items: List<MessageAttachment>): List<Long>
+    suspend fun insertAttachments(items: List<MessageAttachment>): List<Long>
 }

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

@@ -5,19 +5,15 @@ import androidx.room.Query
 import androidx.room.Transaction
 import io.github.wulkanowy.data.db.entities.Message
 import io.github.wulkanowy.data.db.entities.MessageWithAttachment
-import io.reactivex.Maybe
-import io.reactivex.Single
+import kotlinx.coroutines.flow.Flow
 
 @Dao
 interface MessagesDao : BaseDao<Message> {
 
     @Transaction
     @Query("SELECT * FROM Messages WHERE student_id = :studentId AND message_id = :messageId")
-    fun loadMessageWithAttachment(studentId: Int, messageId: Int): Single<MessageWithAttachment>
+    fun loadMessageWithAttachment(studentId: Int, messageId: Int): Flow<MessageWithAttachment?>
 
-    @Query("SELECT * FROM Messages WHERE student_id = :studentId AND folder_id = :folder AND removed = 0 ORDER BY date DESC")
-    fun loadAll(studentId: Int, folder: Int): Maybe<List<Message>>
-
-    @Query("SELECT * FROM Messages WHERE student_id = :studentId AND removed = 1 ORDER BY date DESC")
-    fun loadDeleted(studentId: Int): Maybe<List<Message>>
+    @Query("SELECT * FROM Messages WHERE student_id = :studentId AND folder_id = :folder ORDER BY date DESC")
+    fun loadAll(studentId: Int, folder: Int): Flow<List<Message>>
 }

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

@@ -3,11 +3,11 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.MobileDevice
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 
 @Dao
 interface MobileDeviceDao : BaseDao<MobileDevice> {
 
     @Query("SELECT * FROM MobileDevices WHERE student_id = :studentId ORDER BY date DESC")
-    fun loadAll(studentId: Int): Maybe<List<MobileDevice>>
+    fun loadAll(studentId: Int): Flow<List<MobileDevice>>
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Note
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,5 +11,5 @@ import javax.inject.Singleton
 interface NoteDao : BaseDao<Note> {
 
     @Query("SELECT * FROM Notes WHERE student_id = :studentId")
-    fun loadAll(studentId: Int): Maybe<List<Note>>
+    fun loadAll(studentId: Int): Flow<List<Note>>
 }

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

@@ -3,7 +3,6 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Recipient
-import io.reactivex.Maybe
 import javax.inject.Singleton
 
 @Singleton
@@ -11,5 +10,5 @@ import javax.inject.Singleton
 interface RecipientDao : BaseDao<Recipient> {
 
     @Query("SELECT * FROM Recipients WHERE student_id = :studentId AND role = :role AND unit_id = :unitId")
-    fun load(studentId: Int, role: Int, unitId: Int): Maybe<List<Recipient>>
+    suspend fun load(studentId: Int, role: Int, unitId: Int): List<Recipient>
 }

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

@@ -3,7 +3,6 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.ReportingUnit
-import io.reactivex.Maybe
 import javax.inject.Singleton
 
 @Singleton
@@ -11,8 +10,8 @@ import javax.inject.Singleton
 interface ReportingUnitDao : BaseDao<ReportingUnit> {
 
     @Query("SELECT * FROM ReportingUnits WHERE student_id = :studentId")
-    fun load(studentId: Int): Maybe<List<ReportingUnit>>
+    suspend fun load(studentId: Int): List<ReportingUnit>
 
     @Query("SELECT * FROM ReportingUnits WHERE student_id = :studentId AND real_id = :unitId")
-    fun loadOne(studentId: Int, unitId: Int): Maybe<ReportingUnit>
+    suspend fun loadOne(studentId: Int, unitId: Int): ReportingUnit?
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.School
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,5 +11,5 @@ import javax.inject.Singleton
 interface SchoolDao : BaseDao<School> {
 
     @Query("SELECT * FROM School WHERE student_id = :studentId AND class_id = :classId")
-    fun load(studentId: Int, classId: Int): Maybe<School>
+    fun load(studentId: Int, classId: Int): Flow<School?>
 }

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

@@ -1,15 +1,19 @@
 package io.github.wulkanowy.data.db.dao
 
 import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Semester
-import io.reactivex.Maybe
 import javax.inject.Singleton
 
 @Singleton
 @Dao
 interface SemesterDao : BaseDao<Semester> {
 
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
+    suspend fun insertSemesters(items: List<Semester>): List<Long>
+
     @Query("SELECT * FROM Semesters WHERE student_id = :studentId AND class_id = :classId")
-    fun loadAll(studentId: Int, classId: Int): Maybe<List<Semester>>
+    suspend fun loadAll(studentId: Int, classId: Int): List<Semester>
 }

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

@@ -5,8 +5,9 @@ import androidx.room.Delete
 import androidx.room.Insert
 import androidx.room.OnConflictStrategy.ABORT
 import androidx.room.Query
+import androidx.room.Transaction
 import io.github.wulkanowy.data.db.entities.Student
-import io.reactivex.Maybe
+import io.github.wulkanowy.data.db.entities.StudentWithSemesters
 import javax.inject.Singleton
 
 @Singleton
@@ -14,23 +15,27 @@ import javax.inject.Singleton
 interface StudentDao {
 
     @Insert(onConflict = ABORT)
-    fun insertAll(student: List<Student>): List<Long>
+    suspend fun insertAll(student: List<Student>): List<Long>
 
     @Delete
-    fun delete(student: Student)
+    suspend fun delete(student: Student)
 
     @Query("SELECT * FROM Students WHERE is_current = 1")
-    fun loadCurrent(): Maybe<Student>
+    suspend fun loadCurrent(): Student?
 
     @Query("SELECT * FROM Students WHERE id = :id")
-    fun loadById(id: Int): Maybe<Student>
+    suspend fun loadById(id: Int): Student?
 
     @Query("SELECT * FROM Students")
-    fun loadAll(): Maybe<List<Student>>
+    suspend fun loadAll(): List<Student>
+
+    @Transaction
+    @Query("SELECT * FROM Students")
+    suspend fun loadStudentsWithSemesters(): List<StudentWithSemesters>
 
     @Query("UPDATE Students SET is_current = 1 WHERE id = :id")
-    fun updateCurrent(id: Long)
+    suspend fun updateCurrent(id: Long)
 
     @Query("UPDATE Students SET is_current = 0")
-    fun resetCurrent()
+    suspend fun resetCurrent()
 }

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

@@ -3,11 +3,11 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Subject
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 
 @Dao
 interface SubjectDao : BaseDao<Subject> {
 
     @Query("SELECT * FROM Subjects WHERE diary_id = :diaryId AND student_id = :studentId")
-    fun loadAll(diaryId: Int, studentId: Int): Maybe<List<Subject>>
+    fun loadAll(diaryId: Int, studentId: Int): Flow<List<Subject>>
 }

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

@@ -3,7 +3,7 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Teacher
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Singleton
 
 @Singleton
@@ -11,5 +11,5 @@ import javax.inject.Singleton
 interface TeacherDao : BaseDao<Teacher> {
 
     @Query("SELECT * FROM Teachers WHERE student_id = :studentId AND class_id = :classId")
-    fun loadAll(studentId: Int, classId: Int): Maybe<List<Teacher>>
+    fun loadAll(studentId: Int, classId: Int): Flow<List<Teacher>>
 }

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.dao
 import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Timetable
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Singleton
 
 @Singleton
@@ -12,5 +12,5 @@ import javax.inject.Singleton
 interface TimetableDao : BaseDao<Timetable> {
 
     @Query("SELECT * FROM Timetable WHERE diary_id = :diaryId AND student_id = :studentId AND date >= :from AND date <= :end")
-    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Maybe<List<Timetable>>
+    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Flow<List<Timetable>>
 }

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "Attendance")
 data class Attendance(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.Month
 import java.io.Serializable
+import java.time.Month
 
 @Entity(tableName = "AttendanceSummary")
 data class AttendanceSummary(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "CompletedLesson")
 data class CompletedLesson(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "Exams")
 data class Exam(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "Grades")
 data class Grade(

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

@@ -3,7 +3,7 @@ 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.time.LocalDateTime
 
 @Entity(tableName = "GradesSummary")
 data class GradeSummary(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "Homework")
 data class Homework(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "LuckyNumbers")
 data class LuckyNumber (

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

@@ -3,8 +3,8 @@ 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
+import java.time.LocalDateTime
 
 @Entity(tableName = "Messages")
 data class Message(
@@ -29,8 +29,6 @@ data class Message(
 
     val subject: String,
 
-    var content: String,
-
     val date: LocalDateTime,
 
     @ColumnInfo(name = "folder_id")
@@ -38,12 +36,6 @@ data class Message(
 
     var unread: Boolean,
 
-    @ColumnInfo(name = "unread_by")
-    val unreadBy: Int,
-
-    @ColumnInfo(name = "read_by")
-    val readBy: Int,
-
     val removed: Boolean,
 
     @ColumnInfo(name = "has_attachments")
@@ -55,4 +47,12 @@ data class Message(
 
     @ColumnInfo(name = "is_notified")
     var isNotified: Boolean = true
+
+    @ColumnInfo(name = "unread_by")
+    var unreadBy: Int = 0
+
+    @ColumnInfo(name = "read_by")
+    var readBy: Int = 0
+
+    var content: String = ""
 }

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

@@ -3,8 +3,8 @@ 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
+import java.time.LocalDateTime
 
 @Entity(tableName = "MobileDevices")
 data class MobileDevice(

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

@@ -3,8 +3,8 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
 import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "Notes")
 data class Note(

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

@@ -4,7 +4,8 @@ import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.Index
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
+import java.io.Serializable
+import java.time.LocalDate
 
 @Entity(tableName = "Semesters", indices = [Index(value = ["student_id", "diary_id", "semester_id"], unique = true)])
 data class Semester(
@@ -36,7 +37,7 @@ data class Semester(
 
     @ColumnInfo(name = "unit_id")
     val unitId: Int
-) {
+): Serializable {
 
     @PrimaryKey(autoGenerate = true)
     var id: Long = 0

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

@@ -4,8 +4,8 @@ import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.Index
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDateTime
 import java.io.Serializable
+import java.time.LocalDateTime
 
 @Entity(tableName = "Students", indices = [Index(value = ["email", "symbol", "student_id", "school_id", "class_id"], unique = true)])
 data class Student(
@@ -43,6 +43,9 @@ data class Student(
     @ColumnInfo(name = "user_login_id")
     val userLoginId: Int,
 
+    @ColumnInfo(name = "user_name")
+    val userName: String,
+
     @ColumnInfo(name = "student_name")
     val studentName: String,
 

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

@@ -0,0 +1,13 @@
+package io.github.wulkanowy.data.db.entities
+
+import androidx.room.Embedded
+import androidx.room.Relation
+import java.io.Serializable
+
+data class StudentWithSemesters(
+    @Embedded
+    val student: Student,
+
+    @Relation(parentColumn = "student_id", entityColumn = "student_id")
+    val semesters: List<Semester>
+) : Serializable

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

@@ -3,9 +3,9 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDateTime
 import java.io.Serializable
+import java.time.LocalDate
+import java.time.LocalDateTime
 
 @Entity(tableName = "Timetable")
 data class Timetable(

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

@@ -0,0 +1,45 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration27 : Migration(26, 27) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("ALTER TABLE Students ADD COLUMN user_name TEXT NOT NULL DEFAULT \"\"")
+
+        val students = getStudentsIdsAndNames(database)
+        val units = getReportingUnits(database)
+
+        students.forEach { (id, userLoginId, studentName) ->
+            val userNameFromUnits = units.singleOrNull { (senderId, _) -> senderId == userLoginId }?.second
+            val normalizedStudentName = studentName.split(" ").asReversed().joinToString(" ")
+
+            val userName = userNameFromUnits ?: normalizedStudentName
+            database.execSQL("UPDATE Students SET user_name = '$userName' WHERE id = '$id'")
+        }
+    }
+
+    private fun getStudentsIdsAndNames(database: SupportSQLiteDatabase): MutableList<Triple<Long, Int, String>> {
+        val students = mutableListOf<Triple<Long, Int, String>>()
+        val studentsCursor = database.query("SELECT id, user_login_id, student_name FROM Students")
+        if (studentsCursor.moveToFirst()) {
+            do {
+                students.add(Triple(studentsCursor.getLong(0), studentsCursor.getInt(1), studentsCursor.getString(2)))
+            } while (studentsCursor.moveToNext())
+        }
+        return students
+    }
+
+    private fun getReportingUnits(database: SupportSQLiteDatabase): MutableList<Pair<Int, String>> {
+        val units = mutableListOf<Pair<Int, String>>()
+        val unitsCursor = database.query("SELECT sender_id, sender_name FROM ReportingUnits")
+        if (unitsCursor.moveToFirst()) {
+            do {
+                units.add(unitsCursor.getInt(0) to unitsCursor.getString(1))
+            } while (unitsCursor.moveToNext())
+        }
+
+        return units
+    }
+}

app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration5.kt

@@ -2,8 +2,8 @@ package io.github.wulkanowy.data.db.migrations
 
 import androidx.room.migration.Migration
 import androidx.sqlite.db.SupportSQLiteDatabase
-import org.threeten.bp.LocalDateTime.now
-import org.threeten.bp.ZoneOffset
+import java.time.LocalDateTime.now
+import java.time.ZoneOffset
 
 class Migration5 : Migration(4, 5) {
 

app/src/main/java/io/github/wulkanowy/data/mappers/SemesterMapper.kt

@@ -0,0 +1,19 @@
+package io.github.wulkanowy.data.mappers
+
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.sdk.pojo.Semester as SdkSemester
+
+fun List<SdkSemester>.mapToEntities(studentId: Int) = map {
+    Semester(
+        studentId = studentId,
+        diaryId = it.diaryId,
+        diaryName = it.diaryName,
+        schoolYear = it.schoolYear,
+        semesterId = it.semesterId,
+        semesterName = it.semesterNumber,
+        start = it.start,
+        end = it.end,
+        classId = it.classId,
+        unitId = it.unitId
+    )
+}

app/src/main/java/io/github/wulkanowy/data/mappers/StudentMapper.kt

@@ -0,0 +1,35 @@
+package io.github.wulkanowy.data.mappers
+
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import java.time.LocalDateTime
+import io.github.wulkanowy.sdk.pojo.Student as SdkStudent
+
+fun List<SdkStudent>.mapToEntities(password: String = "") = map {
+    StudentWithSemesters(
+        student = Student(
+            email = it.email,
+            password = password,
+            isParent = it.isParent,
+            symbol = it.symbol,
+            studentId = it.studentId,
+            userLoginId = it.userLoginId,
+            userName = it.userName,
+            studentName = it.studentName + " " + it.studentSurname,
+            schoolSymbol = it.schoolSymbol,
+            schoolShortName = it.schoolShortName,
+            schoolName = it.schoolName,
+            className = it.className,
+            classId = it.classId,
+            scrapperBaseUrl = it.scrapperBaseUrl,
+            loginType = it.loginType.name,
+            isCurrent = false,
+            registrationDate = LocalDateTime.now(),
+            mobileBaseUrl = it.mobileBaseUrl,
+            privateKey = it.privateKey,
+            certificateKey = it.certificateKey,
+            loginMode = it.loginMode.name
+        ),
+        semesters = it.semesters.mapToEntities(it.studentId)
+    )
+}

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

@@ -1,3 +1,9 @@
 package io.github.wulkanowy.data.pojos
 
-class Contributor(val displayName: String, val githubUsername: String)
+import com.squareup.moshi.JsonClass
+
+@JsonClass(generateAdapter = true)
+class Contributor(
+    val displayName: String,
+    val githubUsername: String
+)

app/src/main/java/io/github/wulkanowy/data/repositories/appcreator/AppCreatorRepository.kt

@@ -1,20 +1,24 @@
 package io.github.wulkanowy.data.repositories.appcreator
 
 import android.content.res.AssetManager
-import com.google.gson.Gson
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.Types
 import io.github.wulkanowy.data.pojos.Contributor
-import io.reactivex.Single
+import io.github.wulkanowy.utils.DispatchersProvider
+import kotlinx.coroutines.withContext
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
-class AppCreatorRepository @Inject constructor(private val assets: AssetManager) {
-    fun getAppCreators(): Single<List<Contributor>> {
-        return Single.fromCallable {
-            Gson().fromJson(
-                assets.open("contributors.json").bufferedReader().use { it.readText() },
-                Array<Contributor>::class.java
-            ).toList()
-        }
+class AppCreatorRepository @Inject constructor(
+    private val assets: AssetManager,
+    private val dispatchers: DispatchersProvider
+) {
+
+    suspend fun getAppCreators() = withContext(dispatchers.backgroundThread) {
+        val moshi = Moshi.Builder().build()
+        val type = Types.newParameterizedType(List::class.java, Contributor::class.java)
+        val adapter = moshi.adapter<List<Contributor>>(type)
+        adapter.fromJson(assets.open("contributors.json").bufferedReader().use { it.readText() })
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceLocal.kt

@@ -3,23 +3,23 @@ package io.github.wulkanowy.data.repositories.attendance
 import io.github.wulkanowy.data.db.dao.AttendanceDao
 import io.github.wulkanowy.data.db.entities.Attendance
 import io.github.wulkanowy.data.db.entities.Semester
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class AttendanceLocal @Inject constructor(private val attendanceDb: AttendanceDao) {
 
-    fun saveAttendance(attendance: List<Attendance>) {
+    suspend fun saveAttendance(attendance: List<Attendance>) {
         attendanceDb.insertAll(attendance)
     }
 
-    fun deleteAttendance(attendance: List<Attendance>) {
+    suspend fun deleteAttendance(attendance: List<Attendance>) {
         attendanceDb.deleteAll(attendance)
     }
 
-    fun getAttendance(semester: Semester, startDate: LocalDate, endDate: LocalDate): Maybe<List<Attendance>> {
-        return attendanceDb.loadAll(semester.diaryId, semester.studentId, startDate, endDate).filter { it.isNotEmpty() }
+    fun getAttendance(semester: Semester, startDate: LocalDate, endDate: LocalDate): Flow<List<Attendance>> {
+        return attendanceDb.loadAll(semester.diaryId, semester.studentId, startDate, endDate)
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceRemote.kt

@@ -6,43 +6,40 @@ import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.sdk.pojo.Absent
 import io.github.wulkanowy.utils.init
-import io.reactivex.Single
-import org.threeten.bp.LocalDate
-import org.threeten.bp.LocalDateTime
-import org.threeten.bp.LocalTime
+import java.time.LocalDate
+import java.time.LocalDateTime
+import java.time.LocalTime
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class AttendanceRemote @Inject constructor(private val sdk: Sdk) {
 
-    fun getAttendance(student: Student, semester: Semester, startDate: LocalDate, endDate: LocalDate): Single<List<Attendance>> {
+    suspend fun getAttendance(student: Student, semester: Semester, startDate: LocalDate, endDate: LocalDate): List<Attendance> {
         return sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
             .getAttendance(startDate, endDate, semester.semesterId)
-            .map { attendance ->
-                attendance.map {
-                    Attendance(
-                        studentId = semester.studentId,
-                        diaryId = semester.diaryId,
-                        date = it.date,
-                        timeId = it.timeId,
-                        number = it.number,
-                        subject = it.subject,
-                        name = it.name,
-                        presence = it.presence,
-                        absence = it.absence,
-                        exemption = it.exemption,
-                        lateness = it.lateness,
-                        excused = it.excused,
-                        deleted = it.deleted,
-                        excusable = it.excusable,
-                        excuseStatus = it.excuseStatus?.name
-                    )
-                }
+            .map {
+                Attendance(
+                    studentId = semester.studentId,
+                    diaryId = semester.diaryId,
+                    date = it.date,
+                    timeId = it.timeId,
+                    number = it.number,
+                    subject = it.subject,
+                    name = it.name,
+                    presence = it.presence,
+                    absence = it.absence,
+                    exemption = it.exemption,
+                    lateness = it.lateness,
+                    excused = it.excused,
+                    deleted = it.deleted,
+                    excusable = it.excusable,
+                    excuseStatus = it.excuseStatus?.name
+                )
             }
     }
 
-    fun excuseAbsence(student: Student, semester: Semester, absenceList: List<Attendance>, reason: String?): Single<Boolean> {
+    suspend fun excuseAbsence(student: Student, semester: Semester, absenceList: List<Attendance>, reason: String?): Boolean {
         return sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear).excuseForAbsence(absenceList.map { attendance ->
             Absent(
                 date = LocalDateTime.of(attendance.date, LocalTime.of(0, 0)),

app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceRepository.kt

@@ -1,45 +1,34 @@
 package io.github.wulkanowy.data.repositories.attendance
 
-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.Attendance
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
-import io.github.wulkanowy.utils.sunday
 import io.github.wulkanowy.utils.monday
+import io.github.wulkanowy.utils.networkBoundResource
+import io.github.wulkanowy.utils.sunday
 import io.github.wulkanowy.utils.uniqueSubtract
-import io.reactivex.Single
-import org.threeten.bp.LocalDate
-import java.net.UnknownHostException
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class AttendanceRepository @Inject constructor(
-    private val settings: InternetObservingSettings,
     private val local: AttendanceLocal,
     private val remote: AttendanceRemote
 ) {
 
-    fun getAttendance(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean): Single<List<Attendance>> {
-        return local.getAttendance(semester, start.monday, end.sunday).filter { !forceRefresh }
-            .switchIfEmpty(ReactiveNetwork.checkInternetConnectivity(settings).flatMap {
-                if (it) remote.getAttendance(student, semester, start.monday, end.sunday)
-                else Single.error(UnknownHostException())
-            }.flatMap { newAttendance ->
-                local.getAttendance(semester, start.monday, end.sunday)
-                    .toSingle(emptyList())
-                    .doOnSuccess { oldAttendance ->
-                        local.deleteAttendance(oldAttendance.uniqueSubtract(newAttendance))
-                        local.saveAttendance(newAttendance.uniqueSubtract(oldAttendance))
-                    }
-            }.flatMap {
-                local.getAttendance(semester, start.monday, end.sunday)
-                    .toSingle(emptyList())
-            }).map { list -> list.filter { it.date in start..end } }
-    }
+    fun getAttendance(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean) = networkBoundResource(
+        shouldFetch = { it.isEmpty() || forceRefresh },
+        query = { local.getAttendance(semester, start.monday, end.sunday) },
+        fetch = { remote.getAttendance(student, semester, start.monday, end.sunday) },
+        saveFetchResult = { old, new ->
+            local.deleteAttendance(old uniqueSubtract new)
+            local.saveAttendance(new uniqueSubtract old)
+        },
+        filterResult = { it.filter { item -> item.date in start..end } }
+    )
 
-    fun excuseForAbsence(student: Student, semester: Semester, attendanceList: List<Attendance>, reason: String? = null): Single<Boolean> {
-        return remote.excuseAbsence(student, semester, attendanceList, reason)
+    suspend fun excuseForAbsence(student: Student, semester: Semester, attendanceList: List<Attendance>, reason: String? = null) {
+        remote.excuseAbsence(student, semester, attendanceList, reason)
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/attendancesummary/AttendanceSummaryLocal.kt

@@ -3,22 +3,22 @@ package io.github.wulkanowy.data.repositories.attendancesummary
 import io.github.wulkanowy.data.db.dao.AttendanceSummaryDao
 import io.github.wulkanowy.data.db.entities.AttendanceSummary
 import io.github.wulkanowy.data.db.entities.Semester
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class AttendanceSummaryLocal @Inject constructor(private val attendanceDb: AttendanceSummaryDao) {
 
-    fun saveAttendanceSummary(attendance: List<AttendanceSummary>) {
+    suspend fun saveAttendanceSummary(attendance: List<AttendanceSummary>) {
         attendanceDb.insertAll(attendance)
     }
 
-    fun deleteAttendanceSummary(attendance: List<AttendanceSummary>) {
+    suspend fun deleteAttendanceSummary(attendance: List<AttendanceSummary>) {
         attendanceDb.deleteAll(attendance)
     }
 
-    fun getAttendanceSummary(semester: Semester, subjectId: Int): Maybe<List<AttendanceSummary>> {
-        return attendanceDb.loadAll(semester.diaryId, semester.studentId, subjectId).filter { it.isNotEmpty() }
+    fun getAttendanceSummary(semester: Semester, subjectId: Int): Flow<List<AttendanceSummary>> {
+        return attendanceDb.loadAll(semester.diaryId, semester.studentId, subjectId)
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/attendancesummary/AttendanceSummaryRemote.kt

@@ -5,32 +5,29 @@ import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.init
-import io.reactivex.Single
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class AttendanceSummaryRemote @Inject constructor(private val sdk: Sdk) {
 
-    fun getAttendanceSummary(student: Student, semester: Semester, subjectId: Int): Single<List<AttendanceSummary>> {
+    suspend fun getAttendanceSummary(student: Student, semester: Semester, subjectId: Int): List<AttendanceSummary> {
         return sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
             .getAttendanceSummary(subjectId)
-            .map { attendance ->
-                attendance.map {
-                    AttendanceSummary(
-                        studentId = semester.studentId,
-                        diaryId = semester.diaryId,
-                        subjectId = subjectId,
-                        month = it.month,
-                        presence = it.presence,
-                        absence = it.absence,
-                        absenceExcused = it.absenceExcused,
-                        absenceForSchoolReasons = it.absenceForSchoolReasons,
-                        lateness = it.lateness,
-                        latenessExcused = it.latenessExcused,
-                        exemption = it.exemption
-                    )
-                }
+            .map {
+                AttendanceSummary(
+                    studentId = semester.studentId,
+                    diaryId = semester.diaryId,
+                    subjectId = subjectId,
+                    month = it.month,
+                    presence = it.presence,
+                    absence = it.absence,
+                    absenceExcused = it.absenceExcused,
+                    absenceForSchoolReasons = it.absenceForSchoolReasons,
+                    lateness = it.lateness,
+                    latenessExcused = it.latenessExcused,
+                    exemption = it.exemption
+                )
             }
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/attendancesummary/AttendanceSummaryRepository.kt

@@ -1,35 +1,25 @@
 package io.github.wulkanowy.data.repositories.attendancesummary
 
-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.AttendanceSummary
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.utils.networkBoundResource
 import io.github.wulkanowy.utils.uniqueSubtract
-import io.reactivex.Single
-import java.net.UnknownHostException
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class AttendanceSummaryRepository @Inject constructor(
-    private val settings: InternetObservingSettings,
     private val local: AttendanceSummaryLocal,
     private val remote: AttendanceSummaryRemote
 ) {
 
-    fun getAttendanceSummary(student: Student, semester: Semester, subjectId: Int, forceRefresh: Boolean = false): Single<List<AttendanceSummary>> {
-        return local.getAttendanceSummary(semester, subjectId).filter { !forceRefresh }
-            .switchIfEmpty(ReactiveNetwork.checkInternetConnectivity(settings)
-                .flatMap {
-                    if (it) remote.getAttendanceSummary(student, semester, subjectId)
-                    else Single.error(UnknownHostException())
-                }.flatMap { new ->
-                    local.getAttendanceSummary(semester, subjectId).toSingle(emptyList())
-                        .doOnSuccess { old ->
-                            local.deleteAttendanceSummary(old.uniqueSubtract(new))
-                            local.saveAttendanceSummary(new.uniqueSubtract(old))
-                        }
-                }.flatMap { local.getAttendanceSummary(semester, subjectId).toSingle(emptyList()) })
-    }
+    fun getAttendanceSummary(student: Student, semester: Semester, subjectId: Int, forceRefresh: Boolean) = networkBoundResource(
+        shouldFetch = { it.isEmpty() || forceRefresh },
+        query = { local.getAttendanceSummary(semester, subjectId) },
+        fetch = { remote.getAttendanceSummary(student, semester, subjectId) },
+        saveFetchResult = { old, new ->
+            local.deleteAttendanceSummary(old uniqueSubtract new)
+            local.saveAttendanceSummary(new uniqueSubtract old)
+        }
+    )
 }

app/src/main/java/io/github/wulkanowy/data/repositories/completedlessons/CompletedLessonsLocal.kt

@@ -3,23 +3,23 @@ package io.github.wulkanowy.data.repositories.completedlessons
 import io.github.wulkanowy.data.db.dao.CompletedLessonsDao
 import io.github.wulkanowy.data.db.entities.CompletedLesson
 import io.github.wulkanowy.data.db.entities.Semester
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class CompletedLessonsLocal @Inject constructor(private val completedLessonsDb: CompletedLessonsDao) {
 
-    fun saveCompletedLessons(completedLessons: List<CompletedLesson>) {
+    suspend fun saveCompletedLessons(completedLessons: List<CompletedLesson>) {
         completedLessonsDb.insertAll(completedLessons)
     }
 
-    fun deleteCompleteLessons(completedLessons: List<CompletedLesson>) {
+    suspend fun deleteCompleteLessons(completedLessons: List<CompletedLesson>) {
         completedLessonsDb.deleteAll(completedLessons)
     }
 
-    fun getCompletedLessons(semester: Semester, start: LocalDate, end: LocalDate): Maybe<List<CompletedLesson>> {
-        return completedLessonsDb.loadAll(semester.diaryId, semester.studentId, start, end).filter { it.isNotEmpty() }
+    fun getCompletedLessons(semester: Semester, start: LocalDate, end: LocalDate): Flow<List<CompletedLesson>> {
+        return completedLessonsDb.loadAll(semester.diaryId, semester.studentId, start, end)
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/completedlessons/CompletedLessonsRemote.kt

@@ -5,34 +5,31 @@ import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.init
-import io.reactivex.Single
-import org.threeten.bp.LocalDate
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class CompletedLessonsRemote @Inject constructor(private val sdk: Sdk) {
 
-    fun getCompletedLessons(student: Student, semester: Semester, startDate: LocalDate, endDate: LocalDate): Single<List<CompletedLesson>> {
+    suspend fun getCompletedLessons(student: Student, semester: Semester, startDate: LocalDate, endDate: LocalDate): List<CompletedLesson> {
         return sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
             .getCompletedLessons(startDate, endDate)
-            .map { lessons ->
-                lessons.map {
-                    it.absence
-                    CompletedLesson(
-                        studentId = semester.studentId,
-                        diaryId = semester.diaryId,
-                        date = it.date,
-                        number = it.number,
-                        subject = it.subject,
-                        topic = it.topic,
-                        teacher = it.teacher,
-                        teacherSymbol = it.teacherSymbol,
-                        substitution = it.substitution,
-                        absence = it.absence,
-                        resources = it.resources
-                    )
-                }
+            .map {
+                it.absence
+                CompletedLesson(
+                    studentId = semester.studentId,
+                    diaryId = semester.diaryId,
+                    date = it.date,
+                    number = it.number,
+                    subject = it.subject,
+                    topic = it.topic,
+                    teacher = it.teacher,
+                    teacherSymbol = it.teacherSymbol,
+                    substitution = it.substitution,
+                    absence = it.absence,
+                    resources = it.resources
+                )
             }
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/completedlessons/CompletedLessonsRepository.kt

@@ -1,42 +1,29 @@
 package io.github.wulkanowy.data.repositories.completedlessons
 
-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.CompletedLesson
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
-import io.github.wulkanowy.utils.sunday
 import io.github.wulkanowy.utils.monday
+import io.github.wulkanowy.utils.networkBoundResource
+import io.github.wulkanowy.utils.sunday
 import io.github.wulkanowy.utils.uniqueSubtract
-import io.reactivex.Single
-import org.threeten.bp.LocalDate
-import java.net.UnknownHostException
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class CompletedLessonsRepository @Inject constructor(
-    private val settings: InternetObservingSettings,
     private val local: CompletedLessonsLocal,
     private val remote: CompletedLessonsRemote
 ) {
 
-    fun getCompletedLessons(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean = false): Single<List<CompletedLesson>> {
-        return local.getCompletedLessons(semester, start.monday, end.sunday).filter { !forceRefresh }
-            .switchIfEmpty(ReactiveNetwork.checkInternetConnectivity(settings)
-                .flatMap {
-                    if (it) remote.getCompletedLessons(student, semester, start.monday, end.sunday)
-                    else Single.error(UnknownHostException())
-                }.flatMap { new ->
-                    local.getCompletedLessons(semester, start.monday, end.sunday)
-                        .toSingle(emptyList())
-                        .doOnSuccess { old ->
-                            local.deleteCompleteLessons(old.uniqueSubtract(new))
-                            local.saveCompletedLessons(new.uniqueSubtract(old))
-                        }
-                }.flatMap {
-                    local.getCompletedLessons(semester, start.monday, end.sunday)
-                        .toSingle(emptyList())
-                }).map { list -> list.filter { it.date in start..end } }
-    }
+    fun getCompletedLessons(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean) = networkBoundResource(
+        shouldFetch = { it.isEmpty() || forceRefresh },
+        query = { local.getCompletedLessons(semester, start.monday, end.sunday) },
+        fetch = { remote.getCompletedLessons(student, semester, start.monday, end.sunday) },
+        saveFetchResult = { old, new ->
+            local.deleteCompleteLessons(old uniqueSubtract new)
+            local.saveCompletedLessons(new uniqueSubtract old)
+        },
+        filterResult = { it.filter { item -> item.date in start..end } }
+    )
 }

app/src/main/java/io/github/wulkanowy/data/repositories/exam/ExamLocal.kt

@@ -3,24 +3,23 @@ package io.github.wulkanowy.data.repositories.exam
 import io.github.wulkanowy.data.db.dao.ExamDao
 import io.github.wulkanowy.data.db.entities.Exam
 import io.github.wulkanowy.data.db.entities.Semester
-import io.reactivex.Maybe
-import org.threeten.bp.LocalDate
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class ExamLocal @Inject constructor(private val examDb: ExamDao) {
 
-    fun getExams(semester: Semester, startDate: LocalDate, endDate: LocalDate): Maybe<List<Exam>> {
+    fun getExams(semester: Semester, startDate: LocalDate, endDate: LocalDate): Flow<List<Exam>> {
         return examDb.loadAll(semester.diaryId, semester.studentId, startDate, endDate)
-                .filter { it.isNotEmpty() }
     }
 
-    fun saveExams(exams: List<Exam>) {
+    suspend fun saveExams(exams: List<Exam>) {
         examDb.insertAll(exams)
     }
 
-    fun deleteExams(exams: List<Exam>) {
+    suspend fun deleteExams(exams: List<Exam>) {
         examDb.deleteAll(exams)
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/exam/ExamRemote.kt

@@ -5,32 +5,29 @@ import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.init
-import io.reactivex.Single
-import org.threeten.bp.LocalDate
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class ExamRemote @Inject constructor(private val sdk: Sdk) {
 
-    fun getExams(student: Student, semester: Semester, startDate: LocalDate, endDate: LocalDate): Single<List<Exam>> {
+    suspend fun getExams(student: Student, semester: Semester, startDate: LocalDate, endDate: LocalDate): List<Exam> {
         return sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
             .getExams(startDate, endDate, semester.semesterId)
-            .map { exams ->
-                exams.map {
-                    Exam(
-                        studentId = semester.studentId,
-                        diaryId = semester.diaryId,
-                        date = it.date,
-                        entryDate = it.entryDate,
-                        subject = it.subject,
-                        group = it.group,
-                        type = it.type,
-                        description = it.description,
-                        teacher = it.teacher,
-                        teacherSymbol = it.teacherSymbol
-                    )
-                }
+            .map {
+                Exam(
+                    studentId = semester.studentId,
+                    diaryId = semester.diaryId,
+                    date = it.date,
+                    entryDate = it.entryDate,
+                    subject = it.subject,
+                    group = it.group,
+                    type = it.type,
+                    description = it.description,
+                    teacher = it.teacher,
+                    teacherSymbol = it.teacherSymbol
+                )
             }
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/exam/ExamRepository.kt

@@ -1,42 +1,29 @@
 package io.github.wulkanowy.data.repositories.exam
 
-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.Exam
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
-import io.github.wulkanowy.utils.sunday
-import io.github.wulkanowy.utils.monday
+import io.github.wulkanowy.utils.endExamsDay
+import io.github.wulkanowy.utils.networkBoundResource
+import io.github.wulkanowy.utils.startExamsDay
 import io.github.wulkanowy.utils.uniqueSubtract
-import io.reactivex.Single
-import org.threeten.bp.LocalDate
-import java.net.UnknownHostException
+import java.time.LocalDate
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class ExamRepository @Inject constructor(
-    private val settings: InternetObservingSettings,
     private val local: ExamLocal,
     private val remote: ExamRemote
 ) {
 
-    fun getExams(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean = false): Single<List<Exam>> {
-        return local.getExams(semester, start.monday, end.sunday).filter { !forceRefresh }
-            .switchIfEmpty(ReactiveNetwork.checkInternetConnectivity(settings)
-                .flatMap {
-                    if (it) remote.getExams(student, semester, start.monday, end.sunday)
-                    else Single.error(UnknownHostException())
-                }.flatMap { new ->
-                    local.getExams(semester, start.monday, end.sunday)
-                        .toSingle(emptyList())
-                        .doOnSuccess { old ->
-                            local.deleteExams(old.uniqueSubtract(new))
-                            local.saveExams(new.uniqueSubtract(old))
-                        }
-                }.flatMap {
-                    local.getExams(semester, start.monday, end.sunday)
-                        .toSingle(emptyList())
-                }).map { list -> list.filter { it.date in start..end } }
-    }
+    fun getExams(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean) = networkBoundResource(
+        shouldFetch = { it.isEmpty() || forceRefresh },
+        query = { local.getExams(semester, start.startExamsDay, start.endExamsDay) },
+        fetch = { remote.getExams(student, semester, start.startExamsDay, start.endExamsDay) },
+        saveFetchResult = { old, new ->
+            local.deleteExams(old uniqueSubtract new)
+            local.saveExams(new uniqueSubtract old)
+        },
+        filterResult = { it.filter { item -> item.date in start..end } }
+    )
 }

app/src/main/java/io/github/wulkanowy/data/repositories/grade/GradeLocal.kt

@@ -5,7 +5,7 @@ import io.github.wulkanowy.data.db.dao.GradeSummaryDao
 import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.data.db.entities.GradeSummary
 import io.github.wulkanowy.data.db.entities.Semester
-import io.reactivex.Maybe
+import kotlinx.coroutines.flow.Flow
 import javax.inject.Inject
 import javax.inject.Singleton
 
@@ -15,35 +15,35 @@ class GradeLocal @Inject constructor(
     private val gradeSummaryDb: GradeSummaryDao
 ) {
 
-    fun saveGrades(grades: List<Grade>) {
+    suspend fun saveGrades(grades: List<Grade>) {
         gradeDb.insertAll(grades)
     }
 
-    fun deleteGrades(grades: List<Grade>) {
+    suspend fun deleteGrades(grades: List<Grade>) {
         gradeDb.deleteAll(grades)
     }
 
-    fun updateGrades(grades: List<Grade>) {
+    suspend fun updateGrades(grades: List<Grade>) {
         gradeDb.updateAll(grades)
     }
 
-    fun updateGradesSummary(gradesSummary: List<GradeSummary>) {
+    suspend fun updateGradesSummary(gradesSummary: List<GradeSummary>) {
         gradeSummaryDb.updateAll(gradesSummary)
     }
 
-    fun getGradesDetails(semester: Semester): Maybe<List<Grade>> {
-        return gradeDb.loadAll(semester.semesterId, semester.studentId).filter { it.isNotEmpty() }
+    fun getGradesDetails(semester: Semester): Flow<List<Grade>> {
+        return gradeDb.loadAll(semester.semesterId, semester.studentId)
     }
 
-    fun saveGradesSummary(gradesSummary: List<GradeSummary>) {
+    suspend fun saveGradesSummary(gradesSummary: List<GradeSummary>) {
         gradeSummaryDb.insertAll(gradesSummary)
     }
 
-    fun deleteGradesSummary(gradesSummary: List<GradeSummary>) {
+    suspend fun deleteGradesSummary(gradesSummary: List<GradeSummary>) {
         gradeSummaryDb.deleteAll(gradesSummary)
     }
 
-    fun getGradesSummary(semester: Semester): Maybe<List<GradeSummary>> {
-        return gradeSummaryDb.loadAll(semester.semesterId, semester.studentId).filter { it.isNotEmpty() }
+    fun getGradesSummary(semester: Semester): Flow<List<GradeSummary>> {
+        return gradeSummaryDb.loadAll(semester.semesterId, semester.studentId)
     }
 }

app/src/main/java/io/github/wulkanowy/data/repositories/grade/GradeRemote.kt

@@ -6,48 +6,48 @@ import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.init
-import io.reactivex.Single
 import javax.inject.Inject
 import javax.inject.Singleton
 
 @Singleton
 class GradeRemote @Inject constructor(private val sdk: Sdk) {
 
-    fun getGrades(student: Student, semester: Semester): Single<Pair<List<Grade>, List<GradeSummary>>> {
-        return sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
+    suspend fun getGrades(student: Student, semester: Semester): Pair<List<Grade>, List<GradeSummary>> {
+        val (details, summary) = sdk
+            .init(student)
+            .switchDiary(semester.diaryId, semester.schoolYear)
             .getGrades(semester.semesterId)
-            .map { (details, summary) ->
-                details.map {
-                    Grade(
-                        studentId = semester.studentId,
-                        semesterId = semester.semesterId,
-                        subject = it.subject,
-                        entry = it.entry,
-                        value = it.value,
-                        modifier = it.modifier,
-                        comment = it.comment,
-                        color = it.color,
-                        gradeSymbol = it.symbol,
-                        description = it.description,
-                        weight = it.weight,
-                        weightValue = it.weightValue,
-                        date = it.date,
-                        teacher = it.teacher
-                    )
-                } to summary.map {
-                    GradeSummary(
-                        semesterId = semester.semesterId,
-                        studentId = semester.studentId,
-                        position = 0,
-                        subject = it.name,
-                        predictedGrade = it.predicted,
-                        finalGrade = it.final,
-                        pointsSum = it.pointsSum,
-                        proposedPoints = it.proposedPoints,
-                        finalPoints = it.finalPoints,
-                        average = it.average
-                    )
-                }
-            }
+
+        return details.map {
+            Grade(
+                studentId = semester.studentId,
+                semesterId = semester.semesterId,
+                subject = it.subject,
+                entry = it.entry,
+                value = it.value,
+                modifier = it.modifier,
+                comment = it.comment,
+                color = it.color,
+                gradeSymbol = it.symbol,
+                description = it.description,
+                weight = it.weight,
+                weightValue = it.weightValue,
+                date = it.date,
+                teacher = it.teacher
+            )
+        } to summary.map {
+            GradeSummary(
+                semesterId = semester.semesterId,
+                studentId = semester.studentId,
+                position = 0,
+                subject = it.name,
+                predictedGrade = it.predicted,
+                finalGrade = it.final,
+                pointsSum = it.pointsSum,
+                proposedPoints = it.proposedPoints,
+                finalPoints = it.finalPoints,
+                average = it.average
+            )
+        }
     }
 }