Merge branch 'release/1.2.0'

2021-08-29 21:08:18 +02:00 · 2021-08-29 21:08:18 +02:00 · db6c84775b
commit db6c84775b
parent b60c59216d 72d8b4aa84
373 changed files with 19847 additions and 2640 deletions
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -1,3 +1,12 @@
+---
+name: Bug report
+about: Utwórz raport błędu, aby pomóc nam ulepszyć Wulkanowego
+title: ''
+labels: ''
+assignees: ''
+
+---
+
 ## Co powinno się dziać


--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Zaproponuj nowy pomysł dla Wulkanowego
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+** Czy Twoja prośba o funkcję jest związana z problemem? Proszę opisz.**
+Jasny i zwięzły opis problemu. Np. Zawsze jestem sfrustrowany, gdy [...]
+
+** Opisz żądane rozwiązanie **
+Jasny i zwięzły opis tego, co chcesz, aby się wydarzyło.
+
+** Opisz alternatywy, które rozważałeś **
+Jasny i zwięzły opis wszelkich rozważanych alternatywnych rozwiązań lub funkcji.
+
+** Dodatkowy kontekst **
+Dodaj inny kontekst lub zrzuty ekranu dotyczące żądania funkcji tutaj.
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@ -0,0 +1,12 @@
+version: 2
+updates:
+- package-ecosystem: gradle
+  directory: "/"
+  schedule:
+    interval: weekly
+  open-pull-requests-limit: 10
+  target-branch: develop
+  ignore:
+    - dependency-name: io.github.wulkanowy:sdk
+  reviewers:
+  - Faierbel
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@ -27,8 +27,8 @@ jobs:
            key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*') }}
        - name: Unit tests
          run: |
-            ./gradlew --build-cache -Pcoverage testFdroidDebugUnitTest --stacktrace
-            ./gradlew --build-cache -Pcoverage jacocoTestReport --stacktrace
+            ./gradlew testFdroidDebugUnitTest --stacktrace
+            ./gradlew jacocoTestReport --stacktrace
        - uses: codecov/codecov-action@v1
          with:
              flags: unit
--- a/.gitignore
+++ b/.gitignore
@ -118,3 +118,4 @@ Thumbs.db

 app/src/release/agconnect-services.json
 app/src/release/agconnect-credentials.json
+.idea/deploymentTargetDropDown.xml
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@ -7,15 +7,6 @@
          <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" />
      <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="2147483647" />
      <option name="WRAP_ELVIS_EXPRESSIONS" value="0" />
--- a/README.en.md
+++ b/README.en.md
@ -2,7 +2,7 @@

 # Wulkanowy

-[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/wulkanowy/wulkanowy/Test%20and%20deploy/develop?style=flat-square)](https://github.com/wulkanowy/wulkanowy/actions)
+[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/wulkanowy/wulkanowy/Tests/develop?style=flat-square)](https://github.com/wulkanowy/wulkanowy/actions)
 [![Codecov](https://img.shields.io/codecov/c/github/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://codecov.io/gh/wulkanowy/wulkanowy)
 [![Discord](https://img.shields.io/discord/390889354199040011.svg?style=flat-square)](https://discord.gg/vccAQBr)
 [![F-Droid](https://img.shields.io/f-droid/v/io.github.wulkanowy.svg?style=flat-square)](https://f-droid.org/packages/io.github.wulkanowy/)
--- a/README.md
+++ b/README.md
@ -2,7 +2,7 @@

 # Wulkanowy

-[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/wulkanowy/wulkanowy/Test%20and%20deploy/develop?style=flat-square)](https://github.com/wulkanowy/wulkanowy/actions)
+[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/wulkanowy/wulkanowy/Tests/develop?style=flat-square)](https://github.com/wulkanowy/wulkanowy/actions)
 [![Codecov](https://img.shields.io/codecov/c/github/wulkanowy/wulkanowy/master.svg?style=flat-square)](https://codecov.io/gh/wulkanowy/wulkanowy)
 [![Discord](https://img.shields.io/discord/390889354199040011.svg?style=flat-square)](https://discord.gg/vccAQBr)
 [![F-Droid](https://img.shields.io/f-droid/v/io.github.wulkanowy.svg?style=flat-square)](https://f-droid.org/packages/io.github.wulkanowy/)
--- a/app/build.gradle
+++ b/app/build.gradle
@ -1,12 +1,13 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-parcelize'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'dagger.hilt.android.plugin'
+apply plugin: 'com.google.gms.google-services'
 apply plugin: 'com.google.firebase.crashlytics'
 apply plugin: 'com.github.triplet.play'
 apply plugin: 'ru.cian.huawei-publish'
 apply plugin: 'com.mikepenz.aboutlibraries.plugin'
-apply plugin: 'com.google.gms.google-services'
 apply plugin: 'com.huawei.agconnect'
 apply from: 'jacoco.gradle'
 apply from: 'sonarqube.gradle'
@ -14,16 +15,14 @@ apply from: 'hooks.gradle'

 android {
    compileSdkVersion 30
-    buildToolsVersion '30.0.3'

    defaultConfig {
        applicationId "io.github.wulkanowy"
        testApplicationId "io.github.tests.wulkanowy"
-        minSdkVersion 17
+        minSdkVersion 21
        targetSdkVersion 30
-        versionCode 92
-        versionName "1.1.6"
-        multiDexEnabled true
+        versionCode 93
+        versionName "1.2.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true

@ -68,7 +67,6 @@ android {
            resValue "string", "app_name", "Wulkanowy DEV " + defaultConfig.versionCode
            applicationIdSuffix ".dev"
            versionNameSuffix "-dev"
-            testCoverageEnabled = project.hasProperty('coverage')
            ext.enableCrashlytics = project.hasProperty("enableFirebase")
        }
    }
@ -78,7 +76,6 @@ android {
    productFlavors {
        hms {
            dimension "platform"
-            minSdkVersion 19
            manifestPlaceholders = [
                    install_channel: "AppGallery"
            ]
@ -100,11 +97,7 @@ android {
    }

    buildFeatures {
-        viewBinding = true
-    }
-
-    lintOptions {
-        disable 'HardwareIds'
+        viewBinding true
    }

    testOptions.unitTests {
@ -113,13 +106,12 @@ android {

    compileOptions {
        coreLibraryDesugaringEnabled true
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
    }

    kotlinOptions {
-        useIR = true
-        jvmTarget = "1.8"
+        jvmTarget = "11"
        freeCompilerArgs += ["-Xopt-in=kotlin.RequiresOptIn", "-Xjvm-default=all"]
    }

@ -133,12 +125,16 @@ android {
    }
 }

+kapt {
+    correctErrorTypes true
+}
+
 play {
    serviceAccountEmail = System.getenv("PLAY_SERVICE_ACCOUNT_EMAIL") ?: "jan@fakelog.cf"
    serviceAccountCredentials = file('key.p12')
    defaultToAppBundles = false
-    track = 'production'
-    updatePriority = 5
+    track = 'beta'
+    updatePriority = 3
 }

 huaweiPublish {
@ -153,39 +149,37 @@ huaweiPublish {

 ext {
    work_manager = "2.5.0"
-    work_hilt = "1.0.0-beta01"
-    room = "2.3.0-rc01"
-    chucker = "3.4.0"
-    mockk = "1.11.0"
-    moshi = "1.11.0"
+    android_hilt = "1.0.0"
+    room = "2.3.0"
+    chucker = "3.5.2"
+    mockk = "1.12.0"
+    moshi = "1.12.0"
 }

 dependencies {
-    implementation "io.github.wulkanowy:sdk:1.1.6"
+    implementation "io.github.wulkanowy:sdk:1.2.0"

    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'

-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.3'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.1"

-    implementation "androidx.core:core-ktx:1.3.2"
-    implementation "androidx.activity:activity-ktx:1.2.2"
-    implementation "androidx.appcompat:appcompat:1.2.0"
-    implementation "androidx.appcompat:appcompat-resources:1.2.0"
-    implementation "androidx.fragment:fragment-ktx:1.3.2"
+    implementation "androidx.core:core-ktx:1.6.0"
+    implementation "androidx.activity:activity-ktx:1.3.1"
+    implementation "androidx.appcompat:appcompat:1.3.1"
+    implementation "androidx.appcompat:appcompat-resources:1.3.1"
+    implementation "androidx.fragment:fragment-ktx:1.3.6"
    implementation "androidx.annotation:annotation:1.2.0"
-    implementation "androidx.multidex:multidex:2.0.1"

    implementation "androidx.preference:preference-ktx:1.1.1"
-    implementation "androidx.recyclerview:recyclerview:1.1.0"
+    implementation "androidx.recyclerview:recyclerview:1.2.1"
    implementation "androidx.viewpager:viewpager:1.0.0"
    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"
-    implementation "androidx.constraintlayout:constraintlayout:2.0.4"
+    implementation "androidx.constraintlayout:constraintlayout:2.1.0"
    implementation "androidx.coordinatorlayout:coordinatorlayout:1.1.0"
-    implementation "com.google.android.material:material:1.3.0"
+    implementation "com.google.android.material:material:1.4.0"
    implementation "com.github.wulkanowy:material-chips-input:2.2.0"
    implementation "com.github.PhilJay:MPAndroidChart:v3.1.0"
-    implementation 'com.mikhaellopez:circularimageview:4.2.0'
+    implementation 'com.github.lopspower:CircularImageView:4.2.0'

    implementation "androidx.work:work-runtime-ktx:$work_manager"
    playImplementation "androidx.work:work-gcm:$work_manager"
@ -198,55 +192,56 @@ dependencies {

    implementation "com.google.dagger:hilt-android:$hilt_version"
    kapt "com.google.dagger:hilt-android-compiler:$hilt_version"
-    implementation "androidx.hilt:hilt-work:$work_hilt"
-    kapt "androidx.hilt:hilt-compiler:$work_hilt"
+    kapt "androidx.hilt:hilt-compiler:$android_hilt"
+    implementation "androidx.hilt:hilt-work:$android_hilt"

-    implementation "com.aurelhubert:ahbottomnavigation:2.3.4"
-    implementation "com.ncapdevi:frag-nav:3.3.0"
+    implementation 'com.github.ncapdevi:FragNav:3.3.0'
    implementation "com.github.YarikSOffice:lingver:1.3.0"

    implementation "com.squareup.moshi:moshi:$moshi"
    implementation "com.squareup.moshi:moshi-adapters:$moshi"
    kapt "com.squareup.moshi:moshi-kotlin-codegen:$moshi"
-    implementation "com.jakewharton.timber:timber:4.7.1"
+
+    implementation "com.jakewharton.timber:timber:5.0.1"
    implementation "at.favre.lib:slf4j-timber:1.0.1"
-    implementation "fr.bipi.treessence:treessence:0.3.2"
+    implementation 'com.github.bastienpaulfr:Treessence:1.0.4'
    implementation "com.mikepenz:aboutlibraries-core:$about_libraries"
-    implementation 'com.wdullaer:materialdatetimepicker:4.2.3'
-    implementation "io.coil-kt:coil:1.1.1"
+    implementation "io.coil-kt:coil:1.3.2"
    implementation "io.github.wulkanowy:AppKillerManager:3.0.0"
    implementation 'me.xdrop:fuzzywuzzy:1.3.1'
+    implementation 'com.fredporciuncula:flow-preferences:1.5.0'

-    playImplementation platform('com.google.firebase:firebase-bom:26.7.0')
+    playImplementation platform('com.google.firebase:firebase-bom:28.4.0')
    playImplementation 'com.google.firebase:firebase-analytics-ktx'
    playImplementation 'com.google.firebase:firebase-messaging:'
    playImplementation 'com.google.firebase:firebase-crashlytics:'
+    playImplementation 'com.google.android.play:core:1.10.0'
    playImplementation 'com.google.android.play:core-ktx:1.8.1'

-    hmsImplementation 'com.huawei.hms:hianalytics:5.2.0.301'
-    hmsImplementation 'com.huawei.agconnect:agconnect-crash:1.5.1.200'
+    hmsImplementation 'com.huawei.hms:hianalytics:6.1.1.300'
+    hmsImplementation 'com.huawei.agconnect:agconnect-crash:1.6.0.300'

    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"
+    debugImplementation 'com.github.amitshekhariitbhu.Android-Debug-Database:debug-db:v1.0.6'

    testImplementation "junit:junit:4.13.2"
    testImplementation "io.mockk:mockk:$mockk"
-    testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.4.2'
+    testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.5.1'
    testImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"

-    testImplementation 'org.robolectric:robolectric:4.5.1'
-    testImplementation "androidx.test:runner:1.3.0"
-    testImplementation "androidx.test.ext:junit:1.1.2"
-    testImplementation "androidx.test:core:1.3.0"
+    testImplementation 'org.robolectric:robolectric:4.6.1'
+    testImplementation "androidx.test:runner:1.4.0"
+    testImplementation "androidx.test.ext:junit:1.1.3"
+    testImplementation "androidx.test:core:1.4.0"
    testImplementation "androidx.room:room-testing:$room"
    testImplementation "com.google.dagger:hilt-android-testing:$hilt_version"
    kaptTest "com.google.dagger:hilt-android-compiler:$hilt_version"

-    androidTestImplementation "androidx.test:core:1.3.0"
-    androidTestImplementation "androidx.test:runner:1.3.0"
-    androidTestImplementation "androidx.test.ext:junit:1.1.2"
+    androidTestImplementation "androidx.test:core:1.4.0"
+    androidTestImplementation "androidx.test:runner:1.4.0"
+    androidTestImplementation "androidx.test.ext:junit:1.1.3"
    androidTestImplementation "io.mockk:mockk-android:$mockk"
    androidTestImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
 }
--- a/app/jacoco.gradle
+++ b/app/jacoco.gradle
@ -1,8 +1,8 @@
 apply plugin: "jacoco"

 jacoco {
-    toolVersion "0.8.5"
-    reportsDir = file("$buildDir/reports")
+    toolVersion "0.8.7"
+    reportsDirectory.set(file("$buildDir/reports"))
 }

 tasks.withType(Test) {
@ -16,8 +16,8 @@ task jacocoTestReport(type: JacocoReport) {
    description = "Generate Jacoco coverage reports"

    reports {
-        xml.enabled = true
-        html.enabled = true
+        xml.required.set(true)
+        html.required.set(true)
    }

    def excludes = ['**/R.class',
--- a/app/schemas/io.github.wulkanowy.data.db.AppDatabase/36.json
+++ b/app/schemas/io.github.wulkanowy.data.db.AppDatabase/36.json
--- a/app/schemas/io.github.wulkanowy.data.db.AppDatabase/37.json
+++ b/app/schemas/io.github.wulkanowy.data.db.AppDatabase/37.json
--- a/app/schemas/io.github.wulkanowy.data.db.AppDatabase/38.json
+++ b/app/schemas/io.github.wulkanowy.data.db.AppDatabase/38.json
--- a/app/schemas/io.github.wulkanowy.data.db.AppDatabase/39.json
+++ b/app/schemas/io.github.wulkanowy.data.db.AppDatabase/39.json
--- a/app/src/debug/res/drawable-hdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_timetable.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_timetable.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_timetable.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_timetable.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_timetable.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_timetable.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_timetable.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_timetable.png
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_grade.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_grade.xml
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_luckynumber.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_luckynumber.xml
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_message.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_message.xml
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_note.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_note.xml
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_timetable.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_timetable.xml
--- a/app/src/fdroid/java/io/github/wulkanowy/utils/InAppReviewHelper.kt
+++ b/app/src/fdroid/java/io/github/wulkanowy/utils/InAppReviewHelper.kt
@ -0,0 +1,17 @@
+package io.github.wulkanowy.utils
+
+import android.content.Context
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.ui.modules.main.MainActivity
+import javax.inject.Singleton
+import javax.inject.Inject
+
+@Singleton
+class InAppReviewHelper @Inject constructor(
+    @ApplicationContext private val context: Context
+)  {
+
+    fun showInAppReview(activity: MainActivity) {
+        // do nothing
+    }
+}
--- a/app/src/hms/java/io/github/wulkanowy/utils/CrashLogUtils.kt
+++ b/app/src/hms/java/io/github/wulkanowy/utils/CrashLogUtils.kt
@ -3,11 +3,6 @@ package io.github.wulkanowy.utils
 import android.util.Log
 import com.huawei.agconnect.crash.AGConnectCrash
 import fr.bipi.tressence.base.FormatterPriorityTree
-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) {

@ -20,21 +15,10 @@ class CrashLogTree : FormatterPriorityTree(Log.VERBOSE) {
    }
 }

-class CrashLogExceptionTree : FormatterPriorityTree(Log.ERROR) {
+class CrashLogExceptionTree : FormatterPriorityTree(Log.ERROR, ExceptionFilter) {

    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

--- a/app/src/hms/java/io/github/wulkanowy/utils/InAppReviewHelper.kt
+++ b/app/src/hms/java/io/github/wulkanowy/utils/InAppReviewHelper.kt
@ -0,0 +1,17 @@
+package io.github.wulkanowy.utils
+
+import android.content.Context
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.ui.modules.main.MainActivity
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class InAppReviewHelper @Inject constructor(
+    @ApplicationContext private val context: Context
+)  {
+
+    fun showInAppReview(activity: MainActivity) {
+        // do nothing
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -6,6 +6,7 @@

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.VIBRATE" />

@ -167,7 +168,7 @@

        <meta-data
            android:name="com.google.firebase.messaging.default_notification_icon"
-            android:resource="@drawable/ic_stat_push" />
+            android:resource="@drawable/ic_stat_all" />

        <meta-data
            android:name="com.google.firebase.messaging.default_notification_channel_id"
--- a/app/src/main/assets/contributors.json
+++ b/app/src/main/assets/contributors.json
@ -36,7 +36,7 @@
    "githubUsername": "Luncenok"
  },
  {
-    "displayName": "MRmlik12",
+    "displayName": "Daniel Olczyk",
    "githubUsername": "MRmlik12"
  },
  {
@ -46,5 +46,9 @@
  {
    "displayName": "Kamil Studziński",
    "githubUsername": "studzinskik"
+  },
+  {
+    "displayName": "Tomasz F.",
+    "githubUsername": "Pengwius"
  }
 ]
--- a/app/src/main/java/io/github/wulkanowy/WulkanowyApp.kt
+++ b/app/src/main/java/io/github/wulkanowy/WulkanowyApp.kt
@ -2,14 +2,12 @@ package io.github.wulkanowy

 import android.annotation.SuppressLint
 import android.app.Application
-import android.content.Context
 import android.util.Log.DEBUG
 import android.util.Log.INFO
 import android.util.Log.VERBOSE
 import android.webkit.WebView
 import androidx.fragment.app.FragmentManager
 import androidx.hilt.work.HiltWorkerFactory
-import androidx.multidex.MultiDex
 import androidx.work.Configuration
 import com.yariksoffice.lingver.Lingver
 import dagger.hilt.android.HiltAndroidApp
@ -43,11 +41,6 @@ class WulkanowyApp : Application(), Configuration.Provider {
    @Inject
    lateinit var analyticsHelper: AnalyticsHelper

-    override fun attachBaseContext(base: Context?) {
-        super.attachBaseContext(base)
-        MultiDex.install(this)
-    }
-
    @SuppressLint("UnsafeOptInUsageWarning")
    override fun onCreate() {
        super.onCreate()
@ -91,7 +84,7 @@ class WulkanowyApp : Application(), Configuration.Provider {
        //https://stackoverflow.com/questions/40398528/android-webview-language-changes-abruptly-on-android-7-0-and-above
        try {
            WebView(this).destroy()
-        } catch (e: Exception) {
+        } catch (e: Throwable) {
            //Ignore exceptions
        }
    }
--- a/app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt
@ -8,6 +8,8 @@ import androidx.preference.PreferenceManager
 import com.chuckerteam.chucker.api.ChuckerCollector
 import com.chuckerteam.chucker.api.ChuckerInterceptor
 import com.chuckerteam.chucker.api.RetentionManager
+import com.squareup.moshi.Moshi
+import com.fredporciuncula.flow.preferences.FlowSharedPreferences
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
@ -18,6 +20,7 @@ import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.AppInfo
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import timber.log.Timber
 import javax.inject.Singleton

@ -77,6 +80,16 @@ internal class RepositoryModule {
    fun provideSharedPref(@ApplicationContext context: Context): SharedPreferences =
        PreferenceManager.getDefaultSharedPreferences(context)

+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Singleton
+    @Provides
+    fun provideFlowSharedPref(sharedPreferences: SharedPreferences) =
+        FlowSharedPreferences(sharedPreferences)
+
+    @Singleton
+    @Provides
+    fun provideMoshi() = Moshi.Builder().build()
+
    @Singleton
    @Provides
    fun provideStudentDao(database: AppDatabase) = database.studentDao
@ -181,4 +194,12 @@ internal class RepositoryModule {
    @Singleton
    @Provides
    fun provideStudentInfoDao(database: AppDatabase) = database.studentInfoDao
+
+    @Singleton
+    @Provides
+    fun provideTimetableHeaderDao(database: AppDatabase) = database.timetableHeaderDao
+
+    @Singleton
+    @Provides
+    fun provideSchoolAnnouncementDao(database: AppDatabase) = database.schoolAnnouncementDao
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt
@ -10,6 +10,7 @@ import io.github.wulkanowy.data.db.dao.AttendanceDao
 import io.github.wulkanowy.data.db.dao.AttendanceSummaryDao
 import io.github.wulkanowy.data.db.dao.CompletedLessonsDao
 import io.github.wulkanowy.data.db.dao.ConferenceDao
+import io.github.wulkanowy.data.db.dao.SchoolAnnouncementDao
 import io.github.wulkanowy.data.db.dao.ExamDao
 import io.github.wulkanowy.data.db.dao.GradeDao
 import io.github.wulkanowy.data.db.dao.GradePartialStatisticsDao
@ -32,10 +33,12 @@ import io.github.wulkanowy.data.db.dao.SubjectDao
 import io.github.wulkanowy.data.db.dao.TeacherDao
 import io.github.wulkanowy.data.db.dao.TimetableAdditionalDao
 import io.github.wulkanowy.data.db.dao.TimetableDao
+import io.github.wulkanowy.data.db.dao.TimetableHeaderDao
 import io.github.wulkanowy.data.db.entities.Attendance
 import io.github.wulkanowy.data.db.entities.AttendanceSummary
 import io.github.wulkanowy.data.db.entities.CompletedLesson
 import io.github.wulkanowy.data.db.entities.Conference
+import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
 import io.github.wulkanowy.data.db.entities.Exam
 import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.data.db.entities.GradePartialStatistics
@ -58,6 +61,7 @@ import io.github.wulkanowy.data.db.entities.Subject
 import io.github.wulkanowy.data.db.entities.Teacher
 import io.github.wulkanowy.data.db.entities.Timetable
 import io.github.wulkanowy.data.db.entities.TimetableAdditional
+import io.github.wulkanowy.data.db.entities.TimetableHeader
 import io.github.wulkanowy.data.db.migrations.Migration10
 import io.github.wulkanowy.data.db.migrations.Migration11
 import io.github.wulkanowy.data.db.migrations.Migration12
@ -86,6 +90,10 @@ import io.github.wulkanowy.data.db.migrations.Migration32
 import io.github.wulkanowy.data.db.migrations.Migration33
 import io.github.wulkanowy.data.db.migrations.Migration34
 import io.github.wulkanowy.data.db.migrations.Migration35
+import io.github.wulkanowy.data.db.migrations.Migration36
+import io.github.wulkanowy.data.db.migrations.Migration37
+import io.github.wulkanowy.data.db.migrations.Migration38
+import io.github.wulkanowy.data.db.migrations.Migration39
 import io.github.wulkanowy.data.db.migrations.Migration4
 import io.github.wulkanowy.data.db.migrations.Migration5
 import io.github.wulkanowy.data.db.migrations.Migration6
@ -124,6 +132,8 @@ import javax.inject.Singleton
        Conference::class,
        TimetableAdditional::class,
        StudentInfo::class,
+        TimetableHeader::class,
+        SchoolAnnouncement::class,
    ],
    version = AppDatabase.VERSION_SCHEMA,
    exportSchema = true
@ -132,7 +142,7 @@ import javax.inject.Singleton
 abstract class AppDatabase : RoomDatabase() {

    companion object {
-        const val VERSION_SCHEMA = 35
+        const val VERSION_SCHEMA = 39

        fun getMigrations(sharedPrefProvider: SharedPrefProvider, appInfo: AppInfo) = arrayOf(
            Migration2(),
@ -168,7 +178,11 @@ abstract class AppDatabase : RoomDatabase() {
            Migration32(),
            Migration33(),
            Migration34(),
-            Migration35(appInfo)
+            Migration35(appInfo),
+            Migration36(),
+            Migration37(),
+            Migration38(),
+            Migration39(),
        )

        fun newInstance(
@ -234,4 +248,8 @@ abstract class AppDatabase : RoomDatabase() {
    abstract val timetableAdditionalDao: TimetableAdditionalDao

    abstract val studentInfoDao: StudentInfoDao
+
+    abstract val timetableHeaderDao: TimetableHeaderDao
+
+    abstract val schoolAnnouncementDao: SchoolAnnouncementDao
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/SharedPrefProvider.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/SharedPrefProvider.kt
@ -20,9 +20,15 @@ class SharedPrefProvider @Inject constructor(

    fun getLong(key: String, defaultValue: Long) = sharedPref.getLong(key, defaultValue)

+    fun getString(key: String) = sharedPref.getString(key, null)
+
    fun getString(key: String, defaultValue: String): String = sharedPref.getString(key, defaultValue) ?: defaultValue

-    fun putString(key: String, value: String, sync: Boolean = false) {
+    fun getBoolean(key: String, defaultValue: Boolean): Boolean = sharedPref.getBoolean(key, defaultValue)
+
+    fun putBoolean(key: String, value: Boolean, sync: Boolean = false) = sharedPref.edit(sync) { putBoolean(key, value) }
+
+    fun putString(key: String, value: String?, sync: Boolean = false) {
        sharedPref.edit(sync) { putString(key, value) }
    }

--- a/app/src/main/java/io/github/wulkanowy/data/db/dao/ConferenceDao.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/dao/ConferenceDao.kt
@ -4,12 +4,13 @@ import androidx.room.Dao
 import androidx.room.Query
 import io.github.wulkanowy.data.db.entities.Conference
 import kotlinx.coroutines.flow.Flow
+import java.time.LocalDateTime
 import javax.inject.Singleton

@Dao
@Singleton
 interface ConferenceDao : BaseDao<Conference> {

-    @Query("SELECT * FROM Conferences WHERE diary_id = :diaryId AND student_id = :studentId")
-    fun loadAll(diaryId: Int, studentId: Int): Flow<List<Conference>>
+    @Query("SELECT * FROM Conferences WHERE diary_id = :diaryId AND student_id = :studentId AND date >= :startDate")
+    fun loadAll(diaryId: Int, studentId: Int, startDate: LocalDateTime): Flow<List<Conference>>
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/dao/SchoolAnnouncementDao.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/dao/SchoolAnnouncementDao.kt
@ -0,0 +1,15 @@
+package io.github.wulkanowy.data.db.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
+import kotlinx.coroutines.flow.Flow
+import javax.inject.Singleton
+
+@Dao
+@Singleton
+interface SchoolAnnouncementDao : BaseDao<SchoolAnnouncement> {
+
+    @Query("SELECT * FROM SchoolAnnouncements WHERE student_id = :studentId")
+    fun loadAll(studentId: Int): Flow<List<SchoolAnnouncement>>
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/dao/TimetableHeaderDao.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/dao/TimetableHeaderDao.kt
@ -0,0 +1,16 @@
+package io.github.wulkanowy.data.db.dao
+
+import androidx.room.Dao
+import androidx.room.Query
+import io.github.wulkanowy.data.db.entities.TimetableHeader
+import kotlinx.coroutines.flow.Flow
+import java.time.LocalDate
+import javax.inject.Singleton
+
+@Dao
+@Singleton
+interface TimetableHeaderDao : BaseDao<TimetableHeader> {
+
+    @Query("SELECT * FROM TimetableHeaders WHERE diary_id = :diaryId AND student_id = :studentId AND date >= :from AND date <= :end")
+    fun loadAll(diaryId: Int, studentId: Int, from: LocalDate, end: LocalDate): Flow<List<TimetableHeader>>
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/Conference.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/Conference.kt
@ -32,4 +32,7 @@ data class Conference(

    @PrimaryKey(autoGenerate = true)
    var id: Long = 0
+
+    @ColumnInfo(name = "is_notified")
+    var isNotified: Boolean = true
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/Exam.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/Exam.kt
@ -36,4 +36,7 @@ data class Exam(

    @PrimaryKey(autoGenerate = true)
    var id: Long = 0
+
+    @ColumnInfo(name = "is_notified")
+    var isNotified: Boolean = true
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/Homework.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/Homework.kt
@ -37,4 +37,7 @@ data class Homework(

    @ColumnInfo(name = "is_done")
    var isDone: Boolean = false
+
+    @ColumnInfo(name = "is_notified")
+    var isNotified: Boolean = true
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/Recipient.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/Recipient.kt
@ -3,8 +3,10 @@ package io.github.wulkanowy.data.db.entities
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import com.squareup.moshi.JsonClass
 import java.io.Serializable

+@JsonClass(generateAdapter = true)
@Entity(tableName = "Recipients")
 data class Recipient(

--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/SchoolAnnouncement.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/SchoolAnnouncement.kt
@ -0,0 +1,27 @@
+package io.github.wulkanowy.data.db.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import java.io.Serializable
+import java.time.LocalDate
+
+@Entity(tableName = "SchoolAnnouncements")
+data class SchoolAnnouncement(
+
+    @ColumnInfo(name = "student_id")
+    val studentId: Int,
+
+    val date: LocalDate,
+
+    val subject: String,
+
+    val content: String
+) : Serializable {
+
+    @PrimaryKey(autoGenerate = true)
+    var id: Long = 0
+
+    @ColumnInfo(name = "is_notified")
+    var isNotified: Boolean = true
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/TimetableHeader.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/TimetableHeader.kt
@ -0,0 +1,25 @@
+package io.github.wulkanowy.data.db.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import java.io.Serializable
+import java.time.LocalDate
+
+@Entity(tableName = "TimetableHeaders")
+data class TimetableHeader(
+
+    @ColumnInfo(name = "student_id")
+    val studentId: Int,
+
+    @ColumnInfo(name = "diary_id")
+    val diaryId: Int,
+
+    val date: LocalDate,
+
+    val content: String,
+) : Serializable {
+
+    @PrimaryKey(autoGenerate = true)
+    var id: Long = 0
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration36.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration36.kt
@ -0,0 +1,12 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration36 : Migration(35, 36) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("ALTER TABLE Exams ADD COLUMN is_notified INTEGER NOT NULL DEFAULT 1")
+        database.execSQL("ALTER TABLE Homework ADD COLUMN is_notified INTEGER NOT NULL DEFAULT 1")
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration37.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration37.kt
@ -0,0 +1,21 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration37 : Migration(36, 37) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL(
+            """
+            CREATE TABLE IF NOT EXISTS TimetableHeaders (
+                id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                student_id INTEGER NOT NULL,
+                diary_id INTEGER NOT NULL,
+                date INTEGER NOT NULL,
+                content TEXT NOT NULL
+            )
+        """
+        )
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration38.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration38.kt
@ -0,0 +1,19 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration38 : Migration(37, 38) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("""
+            CREATE TABLE IF NOT EXISTS `SchoolAnnouncements` (
+                `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                `student_id` INTEGER NOT NULL,
+                `date` INTEGER NOT NULL,
+                `subject` TEXT NOT NULL,
+                `content` TEXT NOT NULL
+            )
+        """)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration39.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration39.kt
@ -0,0 +1,12 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration39 : Migration(38, 39) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("ALTER TABLE Conferences ADD COLUMN is_notified INTEGER NOT NULL DEFAULT 1")
+        database.execSQL("ALTER TABLE SchoolAnnouncements ADD COLUMN is_notified INTEGER NOT NULL DEFAULT 1")
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/mappers/DirectorInformationMapper.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/mappers/DirectorInformationMapper.kt
@ -0,0 +1,14 @@
+package io.github.wulkanowy.data.mappers
+
+import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.sdk.pojo.DirectorInformation as SdkDirectorInformation
+
+fun List<SdkDirectorInformation>.mapToEntities(student: Student) = map {
+    SchoolAnnouncement(
+        studentId = student.studentId,
+        date = it.date,
+        subject = it.subject,
+        content = it.content,
+    )
+}
--- a/app/src/main/java/io/github/wulkanowy/data/mappers/TimetableMapper.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/mappers/TimetableMapper.kt
@ -3,9 +3,19 @@ package io.github.wulkanowy.data.mappers
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Timetable
 import io.github.wulkanowy.data.db.entities.TimetableAdditional
+import io.github.wulkanowy.data.db.entities.TimetableHeader
+import io.github.wulkanowy.data.pojos.TimetableFull
+import io.github.wulkanowy.sdk.pojo.TimetableFull as SdkTimetableFull
+import io.github.wulkanowy.sdk.pojo.TimetableDayHeader as SdkTimetableHeader
 import io.github.wulkanowy.sdk.pojo.Timetable as SdkTimetable
 import io.github.wulkanowy.sdk.pojo.TimetableAdditional as SdkTimetableAdditional

+fun SdkTimetableFull.mapToEntities(semester: Semester) = TimetableFull(
+    lessons = lessons.mapToEntities(semester),
+    additional = additional.mapToEntities(semester),
+    headers = headers.mapToEntities(semester)
+)
+
 fun List<SdkTimetable>.mapToEntities(semester: Semester) = map {
    Timetable(
        studentId = semester.studentId,
@ -39,3 +49,13 @@ fun List<SdkTimetableAdditional>.mapToEntities(semester: Semester) = map {
        end = it.end
    )
 }
+
+@JvmName("mapToEntitiesTimetableHeaders")
+fun List<SdkTimetableHeader>.mapToEntities(semester: Semester) = map {
+    TimetableHeader(
+        studentId = semester.studentId,
+        diaryId = semester.diaryId,
+        date = it.date,
+        content = it.content
+    )
+}
--- a/app/src/main/java/io/github/wulkanowy/data/pojos/MessageDraft.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/pojos/MessageDraft.kt
@ -0,0 +1,11 @@
+package io.github.wulkanowy.data.pojos
+
+import com.squareup.moshi.JsonClass
+import io.github.wulkanowy.ui.modules.message.send.RecipientChipItem
+
+@JsonClass(generateAdapter = true)
+data class MessageDraft(
+    val recipients: List<RecipientChipItem>,
+    val subject: String,
+    val content: String,
+)
--- a/app/src/main/java/io/github/wulkanowy/data/pojos/Notification.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/pojos/Notification.kt
@ -0,0 +1,36 @@
+package io.github.wulkanowy.data.pojos
+
+import androidx.annotation.DrawableRes
+import androidx.annotation.PluralsRes
+import androidx.annotation.StringRes
+import io.github.wulkanowy.services.sync.notifications.NotificationType
+import io.github.wulkanowy.ui.modules.main.MainView
+
+sealed interface Notification {
+    val type: NotificationType
+    val startMenu: MainView.Section
+    val icon: Int
+    val titleStringRes: Int
+    val contentStringRes: Int
+}
+
+data class MultipleNotifications(
+    override val type: NotificationType,
+    override val startMenu: MainView.Section,
+    @DrawableRes override val icon: Int,
+    @PluralsRes override val titleStringRes: Int,
+    @PluralsRes override val contentStringRes: Int,
+
+    @PluralsRes val summaryStringRes: Int,
+    val lines: List<String>,
+) : Notification
+
+data class OneNotification(
+    override val type: NotificationType,
+    override val startMenu: MainView.Section,
+    @DrawableRes override val icon: Int,
+    @StringRes override val titleStringRes: Int,
+    @StringRes override val contentStringRes: Int,
+
+    val contentValues: List<String>,
+) : Notification
--- a/app/src/main/java/io/github/wulkanowy/data/pojos/TimetableFull.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/pojos/TimetableFull.kt
@ -0,0 +1,11 @@
+package io.github.wulkanowy.data.pojos
+
+import io.github.wulkanowy.data.db.entities.Timetable
+import io.github.wulkanowy.data.db.entities.TimetableAdditional
+import io.github.wulkanowy.data.db.entities.TimetableHeader
+
+data class TimetableFull(
+    val lessons: List<Timetable>,
+    val additional: List<TimetableAdditional>,
+    val headers: List<TimetableHeader>,
+)
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/AppCreatorRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/AppCreatorRepository.kt
@ -15,6 +15,7 @@ class AppCreatorRepository @Inject constructor(
    private val dispatchers: DispatchersProvider
 ) {

+    @Suppress("BlockingMethodInNonBlockingContext")
    suspend fun getAppCreators() = withContext(dispatchers.backgroundThread) {
        val moshi = Moshi.Builder().build()
        val type = Types.newParameterizedType(List::class.java, Contributor::class.java)
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/AttendanceSummaryRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/AttendanceSummaryRepository.kt
@ -25,9 +25,17 @@ class AttendanceSummaryRepository @Inject constructor(

    private val cacheKey = "attendance_summary"

-    fun getAttendanceSummary(student: Student, semester: Semester, subjectId: Int, forceRefresh: Boolean) = networkBoundResource(
+    fun getAttendanceSummary(
+        student: Student,
+        semester: Semester,
+        subjectId: Int,
+        forceRefresh: Boolean
+    ) = networkBoundResource(
        mutex = saveFetchResultMutex,
-        shouldFetch = { it.isEmpty() || forceRefresh || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester)) },
+        shouldFetch = {
+            it.isEmpty() || forceRefresh
+                || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester))
+        },
        query = { attendanceDb.loadAll(semester.diaryId, semester.studentId, subjectId) },
        fetch = {
            sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/ConferenceRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/ConferenceRepository.kt
@ -1,6 +1,7 @@
 package io.github.wulkanowy.data.repositories

 import io.github.wulkanowy.data.db.dao.ConferenceDao
+import io.github.wulkanowy.data.db.entities.Conference
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.mappers.mapToEntities
@ -10,7 +11,11 @@ import io.github.wulkanowy.utils.getRefreshKey
 import io.github.wulkanowy.utils.init
 import io.github.wulkanowy.utils.networkBoundResource
 import io.github.wulkanowy.utils.uniqueSubtract
+import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.sync.Mutex
+import java.time.Instant
+import java.time.LocalDateTime
+import java.time.ZoneOffset
 import javax.inject.Inject
 import javax.inject.Singleton

@ -25,19 +30,44 @@ class ConferenceRepository @Inject constructor(

    private val cacheKey = "conference"

-    fun getConferences(student: Student, semester: Semester, forceRefresh: Boolean) = networkBoundResource(
+    fun getConferences(
+        student: Student,
+        semester: Semester,
+        forceRefresh: Boolean,
+        notify: Boolean = false,
+        startDate: LocalDateTime = LocalDateTime.ofInstant(Instant.EPOCH, ZoneOffset.UTC)
+    ) = networkBoundResource(
        mutex = saveFetchResultMutex,
-        shouldFetch = { it.isEmpty() || forceRefresh || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester)) },
-        query = { conferenceDb.loadAll(semester.diaryId, student.studentId) },
+        shouldFetch = {
+            it.isEmpty() || forceRefresh
+                || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester))
+        },
+        query = {
+            conferenceDb.loadAll(semester.diaryId, student.studentId, startDate)
+        },
        fetch = {
            sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
                .getConferences()
                .mapToEntities(semester)
+                .filter { it.date >= startDate }
        },
        saveFetchResult = { old, new ->
+            val conferencesToSave = (new uniqueSubtract old).onEach {
+                if (notify) it.isNotified = false
+            }
+
            conferenceDb.deleteAll(old uniqueSubtract new)
-            conferenceDb.insertAll(new uniqueSubtract old)
+            conferenceDb.insertAll(conferencesToSave)
            refreshHelper.updateLastRefreshTimestamp(getRefreshKey(cacheKey, semester))
        }
    )
+
+    fun getConferenceFromDatabase(semester: Semester): Flow<List<Conference>> =
+        conferenceDb.loadAll(
+            diaryId = semester.diaryId,
+            studentId = semester.studentId,
+            startDate = LocalDateTime.ofInstant(Instant.EPOCH, ZoneOffset.UTC)
+        )
+
+    suspend fun updateConference(conference: List<Conference>) = conferenceDb.updateAll(conference)
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/ExamRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/ExamRepository.kt
@ -1,6 +1,7 @@
 package io.github.wulkanowy.data.repositories

 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.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.mappers.mapToEntities
@ -12,6 +13,7 @@ import io.github.wulkanowy.utils.init
 import io.github.wulkanowy.utils.networkBoundResource
 import io.github.wulkanowy.utils.startExamsDay
 import io.github.wulkanowy.utils.uniqueSubtract
+import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.sync.Mutex
 import java.time.LocalDate
 import javax.inject.Inject
@ -28,20 +30,54 @@ class ExamRepository @Inject constructor(

    private val cacheKey = "exam"

-    fun getExams(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean) = networkBoundResource(
+    fun getExams(
+        student: Student,
+        semester: Semester,
+        start: LocalDate,
+        end: LocalDate,
+        forceRefresh: Boolean,
+        notify: Boolean = false
+    ) = networkBoundResource(
        mutex = saveFetchResultMutex,
-        shouldFetch = { it.isEmpty() || forceRefresh || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester, start, end)) },
-        query = { examDb.loadAll(semester.diaryId, semester.studentId, start.startExamsDay, start.endExamsDay) },
+        shouldFetch = {
+            val isShouldBeRefreshed = refreshHelper.isShouldBeRefreshed(
+                key = getRefreshKey(cacheKey, semester, start, end)
+            )
+            it.isEmpty() || forceRefresh || isShouldBeRefreshed
+        },
+        query = {
+            examDb.loadAll(
+                diaryId = semester.diaryId,
+                studentId = semester.studentId,
+                from = start.startExamsDay,
+                end = start.endExamsDay
+            )
+        },
        fetch = {
            sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
                .getExams(start.startExamsDay, start.endExamsDay, semester.semesterId)
                .mapToEntities(semester)
        },
        saveFetchResult = { old, new ->
+            val examsToSave = (new uniqueSubtract old).onEach {
+                if (notify) it.isNotified = false
+            }
+
            examDb.deleteAll(old uniqueSubtract new)
-            examDb.insertAll(new uniqueSubtract old)
+            examDb.insertAll(examsToSave)
            refreshHelper.updateLastRefreshTimestamp(getRefreshKey(cacheKey, semester, start, end))
        },
        filterResult = { it.filter { item -> item.date in start..end } }
    )
+
+    fun getExamsFromDatabase(semester: Semester, start: LocalDate): Flow<List<Exam>> {
+        return examDb.loadAll(
+            diaryId = semester.diaryId,
+            studentId = semester.studentId,
+            from = start.startExamsDay,
+            end = start.endExamsDay
+        )
+    }
+
+    suspend fun updateExam(exam: List<Exam>) = examDb.updateAll(exam)
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/GradeRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/GradeRepository.kt
@ -104,22 +104,16 @@ class GradeRepository @Inject constructor(
        }
    }

-    fun getNotNotifiedGrades(semester: Semester): Flow<List<Grade>> {
-        return gradeDb.loadAll(semester.semesterId, semester.studentId).map {
-            it.filter { grade -> !grade.isNotified }
-        }
+    fun getGradesFromDatabase(semester: Semester): Flow<List<Grade>> {
+        return gradeDb.loadAll(semester.semesterId, semester.studentId)
    }

-    fun getNotNotifiedPredictedGrades(semester: Semester): Flow<List<GradeSummary>> {
-        return gradeSummaryDb.loadAll(semester.semesterId, semester.studentId).map {
-            it.filter { gradeSummary -> !gradeSummary.isPredictedGradeNotified }
-        }
+    fun getGradesPredictedFromDatabase(semester: Semester): Flow<List<GradeSummary>> {
+        return gradeSummaryDb.loadAll(semester.semesterId, semester.studentId)
    }

-    fun getNotNotifiedFinalGrades(semester: Semester): Flow<List<GradeSummary>> {
-        return gradeSummaryDb.loadAll(semester.semesterId, semester.studentId).map {
-            it.filter { gradeSummary -> !gradeSummary.isFinalGradeNotified }
-        }
+    fun getGradesFinalFromDatabase(semester: Semester): Flow<List<GradeSummary>> {
+        return gradeSummaryDb.loadAll(semester.semesterId, semester.studentId)
    }

    suspend fun updateGrade(grade: Grade) {
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/HomeworkRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/HomeworkRepository.kt
@ -29,18 +29,38 @@ class HomeworkRepository @Inject constructor(

    private val cacheKey = "homework"

-    fun getHomework(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean) = networkBoundResource(
+    fun getHomework(
+        student: Student, semester: Semester,
+        start: LocalDate, end: LocalDate,
+        forceRefresh: Boolean, notify: Boolean = false
+    ) = networkBoundResource(
        mutex = saveFetchResultMutex,
-        shouldFetch = { it.isEmpty() || forceRefresh || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester, start, end)) },
-        query = { homeworkDb.loadAll(semester.semesterId, semester.studentId, start.monday, end.sunday) },
+        shouldFetch = {
+            val isShouldBeRefreshed = refreshHelper.isShouldBeRefreshed(
+                key = getRefreshKey(cacheKey, semester, start, end)
+            )
+            it.isEmpty() || forceRefresh || isShouldBeRefreshed
+        },
+        query = {
+            homeworkDb.loadAll(
+                semesterId = semester.semesterId,
+                studentId = semester.studentId,
+                from = start.monday,
+                end = end.sunday
+            )
+        },
        fetch = {
            sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
                .getHomework(start.monday, end.sunday)
                .mapToEntities(semester)
        },
        saveFetchResult = { old, new ->
+            val homeWorkToSave = (new uniqueSubtract old).onEach {
+                if (notify) it.isNotified = false
+            }
+
            homeworkDb.deleteAll(old uniqueSubtract new)
-            homeworkDb.insertAll(new uniqueSubtract old)
+            homeworkDb.insertAll(homeWorkToSave)

            refreshHelper.updateLastRefreshTimestamp(getRefreshKey(cacheKey, semester, start, end))
        }
@ -51,4 +71,9 @@ class HomeworkRepository @Inject constructor(
            isDone = !isDone
        }))
    }
+
+    fun getHomeworkFromDatabase(semester: Semester, start: LocalDate, end: LocalDate) =
+        homeworkDb.loadAll(semester.semesterId, semester.studentId, start.monday, end.sunday)
+
+    suspend fun updateHomework(homework: List<Homework>) = homeworkDb.updateAll(homework)
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/MessageRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/MessageRepository.kt
@ -1,8 +1,15 @@
 package io.github.wulkanowy.data.repositories

+import android.content.Context
+import com.squareup.moshi.Moshi
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.Resource
+import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.db.dao.MessageAttachmentDao
 import io.github.wulkanowy.data.db.dao.MessagesDao
 import io.github.wulkanowy.data.db.entities.Message
+import io.github.wulkanowy.data.db.entities.MessageWithAttachment
 import io.github.wulkanowy.data.db.entities.Recipient
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
@ -10,6 +17,8 @@ import io.github.wulkanowy.data.enums.MessageFolder
 import io.github.wulkanowy.data.enums.MessageFolder.RECEIVED
 import io.github.wulkanowy.data.mappers.mapFromEntities
 import io.github.wulkanowy.data.mappers.mapToEntities
+import io.github.wulkanowy.data.pojos.MessageDraft
+import io.github.wulkanowy.data.pojos.MessageDraftJsonAdapter
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.sdk.pojo.Folder
 import io.github.wulkanowy.sdk.pojo.SentMessage
@ -19,7 +28,6 @@ import io.github.wulkanowy.utils.init
 import io.github.wulkanowy.utils.networkBoundResource
 import io.github.wulkanowy.utils.uniqueSubtract
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.sync.Mutex
 import timber.log.Timber
 import java.time.LocalDateTime.now
@ -31,7 +39,10 @@ class MessageRepository @Inject constructor(
    private val messagesDb: MessagesDao,
    private val messageAttachmentDao: MessageAttachmentDao,
    private val sdk: Sdk,
+    @ApplicationContext private val context: Context,
    private val refreshHelper: AutoRefreshHelper,
+    private val sharedPrefProvider: SharedPrefProvider,
+    private val moshi: Moshi,
 ) {

    private val saveFetchResultMutex = Mutex()
@ -39,22 +50,54 @@ class MessageRepository @Inject constructor(
    private val cacheKey = "message"

    @Suppress("UNUSED_PARAMETER")
-    fun getMessages(student: Student, semester: Semester, folder: MessageFolder, forceRefresh: Boolean, notify: Boolean = false) = networkBoundResource(
+    fun getMessages(
+        student: Student, semester: Semester,
+        folder: MessageFolder, forceRefresh: Boolean, notify: Boolean = false
+    ): Flow<Resource<List<Message>>> = networkBoundResource(
        mutex = saveFetchResultMutex,
-        shouldFetch = { it.isEmpty() || forceRefresh || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, student, folder)) },
+        shouldFetch = {
+            it.isEmpty() || forceRefresh || refreshHelper.isShouldBeRefreshed(
+                getRefreshKey(cacheKey, student, folder)
+            )
+        },
        query = { messagesDb.loadAll(student.id.toInt(), folder.id) },
-        fetch = { sdk.init(student).getMessages(Folder.valueOf(folder.name), now().minusMonths(3), now()).mapToEntities(student) },
+        fetch = {
+            sdk.init(student).getMessages(Folder.valueOf(folder.name), now().minusMonths(3), now())
+                .mapToEntities(student)
+        },
        saveFetchResult = { old, new ->
            messagesDb.deleteAll(old uniqueSubtract new)
            messagesDb.insertAll((new uniqueSubtract old).onEach {
                it.isNotified = !notify
            })
+            messagesDb.updateAll(getMessagesWithReadByChange(old, new, !notify))

            refreshHelper.updateLastRefreshTimestamp(getRefreshKey(cacheKey, student, folder))
        }
    )

-    fun getMessage(student: Student, message: Message, markAsRead: Boolean = false) = networkBoundResource(
+    private fun getMessagesWithReadByChange(
+        old: List<Message>, new: List<Message>,
+        setNotified: Boolean
+    ): List<Message> {
+        val oldMeta = old.map { Triple(it, it.readBy, it.unreadBy) }
+        val newMeta = new.map { Triple(it, it.readBy, it.unreadBy) }
+
+        val updatedItems = newMeta uniqueSubtract oldMeta
+
+        return updatedItems.map {
+            val oldItem = old.find { item -> item.messageId == it.first.messageId }
+            it.first.apply {
+                id = oldItem?.id ?: 0
+                isNotified = oldItem?.isNotified ?: setNotified
+                content = oldItem?.content.orEmpty()
+            }
+        }
+    }
+
+    fun getMessage(
+        student: Student, message: Message, markAsRead: Boolean = false
+    ): Flow<Resource<MessageWithAttachment?>> = networkBoundResource(
        shouldFetch = {
            checkNotNull(it, { "This message no longer exist!" })
            Timber.d("Message content in db empty: ${it.message.content.isEmpty()}")
@ -62,14 +105,20 @@ class MessageRepository @Inject constructor(
        },
        query = { messagesDb.loadMessageWithAttachment(student.id.toInt(), message.messageId) },
        fetch = {
-            sdk.init(student).getMessageDetails(it!!.message.messageId, message.folderId, markAsRead, message.realId).let { details ->
+            sdk.init(student).getMessageDetails(
+                messageId = it!!.message.messageId,
+                folderId = message.folderId,
+                read = markAsRead,
+                id = message.realId
+            ).let { details ->
                details.content to details.attachments.mapToEntities()
            }
        },
        saveFetchResult = { old, (downloadedMessage, attachments) ->
            checkNotNull(old, { "Fetched message no longer exist!" })
-            messagesDb.updateAll(listOf(old.message.copy(unread = !markAsRead).apply {
+            messagesDb.updateAll(listOf(old.message.apply {
                id = old.message.id
+                unread = !markAsRead
                content = content.ifBlank { downloadedMessage }
            }))
            messageAttachmentDao.insertAttachments(attachments)
@ -77,30 +126,42 @@ class MessageRepository @Inject constructor(
        }
    )

-    fun getNotNotifiedMessages(student: Student): Flow<List<Message>> {
-        return messagesDb.loadAll(student.id.toInt(), RECEIVED.id).map { it.filter { message -> !message.isNotified && message.unread } }
+    fun getMessagesFromDatabase(student: Student): Flow<List<Message>> {
+        return messagesDb.loadAll(student.id.toInt(), RECEIVED.id)
    }

    suspend fun updateMessages(messages: List<Message>) {
        return messagesDb.updateAll(messages)
    }

-    suspend fun sendMessage(student: Student, subject: String, content: String, recipients: List<Recipient>): SentMessage {
-        return sdk.init(student).sendMessage(
+    suspend fun sendMessage(
+        student: Student, subject: String, content: String,
+        recipients: List<Recipient>
+    ): SentMessage = sdk.init(student).sendMessage(
        subject = subject,
        content = content,
        recipients = recipients.mapFromEntities()
    )
-    }

    suspend fun deleteMessage(student: Student, message: Message) {
-        val isDeleted = sdk.init(student).deleteMessages(listOf(message.messageId), message.folderId)
+        val isDeleted = sdk.init(student).deleteMessages(
+            messages = listOf(message.messageId), message.folderId
+        )

-        if (message.folderId != MessageFolder.TRASHED.id) {
-            if (isDeleted) messagesDb.updateAll(listOf(message.copy(folderId = MessageFolder.TRASHED.id).apply {
+        if (message.folderId != MessageFolder.TRASHED.id && isDeleted) {
+            val deletedMessage = message.copy(folderId = MessageFolder.TRASHED.id).apply {
                id = message.id
                content = message.content
-            }))
+            }
+            messagesDb.updateAll(listOf(deletedMessage))
        } else messagesDb.deleteAll(listOf(message))
    }
+
+    var draftMessage: MessageDraft?
+        get() = sharedPrefProvider.getString(context.getString(R.string.pref_key_message_send_draft))
+            ?.let { MessageDraftJsonAdapter(moshi).fromJson(it) }
+        set(value) = sharedPrefProvider.putString(
+            context.getString(R.string.pref_key_message_send_draft),
+            value?.let { MessageDraftJsonAdapter(moshi).toJson(it) }
+        )
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/NoteRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/NoteRepository.kt
@ -50,8 +50,8 @@ class NoteRepository @Inject constructor(
        }
    )

-    fun getNotNotifiedNotes(student: Student): Flow<List<Note>> {
-        return noteDb.loadAll(student.studentId).map { it.filter { note -> !note.isNotified } }
+    fun getNotesFromDatabase(student: Student): Flow<List<Note>> {
+        return noteDb.loadAll(student.studentId)
    }

    suspend fun updateNote(note: Note) {
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt
@ -3,18 +3,41 @@ package io.github.wulkanowy.data.repositories
 import android.content.Context
 import android.content.SharedPreferences
 import androidx.core.content.edit
+import com.fredporciuncula.flow.preferences.FlowSharedPreferences
+import com.fredporciuncula.flow.preferences.Preference
+import com.squareup.moshi.JsonAdapter
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.adapter
 import dagger.hilt.android.qualifiers.ApplicationContext
 import io.github.wulkanowy.R
+import io.github.wulkanowy.sdk.toLocalDate
+import io.github.wulkanowy.ui.modules.dashboard.DashboardItem
 import io.github.wulkanowy.ui.modules.grade.GradeAverageMode
 import io.github.wulkanowy.ui.modules.grade.GradeSortingMode
+import io.github.wulkanowy.utils.toTimestamp
+import io.github.wulkanowy.utils.toLocalDateTime
+import io.github.wulkanowy.utils.toTimestamp
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import java.time.LocalDate
+import java.time.LocalDateTime
 import javax.inject.Inject
 import javax.inject.Singleton

+@OptIn(ExperimentalCoroutinesApi::class)
@Singleton
 class PreferencesRepository @Inject constructor(
    private val sharedPref: SharedPreferences,
-    @ApplicationContext val context: Context
+    private val flowSharedPref: FlowSharedPreferences,
+    @ApplicationContext val context: Context,
+    moshi: Moshi
 ) {
+
+    @OptIn(ExperimentalStdlibApi::class)
+    private val dashboardItemsPositionAdapter: JsonAdapter<Map<DashboardItem.Type, Int>> =
+        moshi.adapter()
+
    val startMenuIndex: Int
        get() = getString(R.string.pref_key_start_menu, R.string.pref_default_startup).toInt()

@ -146,9 +169,78 @@ class PreferencesRepository @Inject constructor(
            R.bool.pref_default_subjects_without_grades
        )

-    var isKitkatDialogDisabled: Boolean
-        get() = sharedPref.getBoolean("kitkat_dialog_disabled", false)
-        set(value) = sharedPref.edit { putBoolean("kitkat_dialog_disabled", value) }
+    val isOptionalArithmeticAverage: Boolean
+        get() = getBoolean(
+            R.string.pref_key_optional_arithmetic_average,
+            R.bool.pref_default_optional_arithmetic_average
+        )
+
+    var lasSyncDate: LocalDateTime
+        get() = getLong(
+            R.string.pref_key_last_sync_date,
+            R.string.pref_default_last_sync_date
+        ).toLocalDateTime()
+        set(value) = sharedPref.edit().putLong("last_sync_date", value.toTimestamp()).apply()
+
+    var dashboardItemsPosition: Map<DashboardItem.Type, Int>?
+        get() {
+            val json = sharedPref.getString(PREF_KEY_DASHBOARD_ITEMS_POSITION, null) ?: return null
+
+            return dashboardItemsPositionAdapter.fromJson(json)
+        }
+        set(value) = sharedPref.edit {
+            putString(
+                PREF_KEY_DASHBOARD_ITEMS_POSITION,
+                dashboardItemsPositionAdapter.toJson(value)
+            )
+        }
+
+    val selectedDashboardTilesFlow: Flow<Set<DashboardItem.Tile>>
+        get() = selectedDashboardTilesPreference.asFlow()
+            .map { set ->
+                set.map { DashboardItem.Tile.valueOf(it) }
+                    .plus(DashboardItem.Tile.ACCOUNT)
+                    .toSet()
+            }
+
+    var selectedDashboardTiles: Set<DashboardItem.Tile>
+        get() = selectedDashboardTilesPreference.get()
+            .map { DashboardItem.Tile.valueOf(it) }
+            .plus(DashboardItem.Tile.ACCOUNT)
+            .toSet()
+        set(value) {
+            val filteredValue = value.filterNot { it == DashboardItem.Tile.ACCOUNT }
+                .map { it.name }
+                .toSet()
+
+            selectedDashboardTilesPreference.set(filteredValue)
+        }
+
+    private val selectedDashboardTilesPreference: Preference<Set<String>>
+        get() {
+            val defaultSet =
+                context.resources.getStringArray(R.array.pref_default_dashboard_tiles).toSet()
+            val prefKey = context.getString(R.string.pref_key_dashboard_tiles)
+
+            return flowSharedPref.getStringSet(prefKey, defaultSet)
+        }
+
+    var inAppReviewCount: Int
+        get() = sharedPref.getInt(PREF_KEY_IN_APP_REVIEW_COUNT, 0)
+        set(value) = sharedPref.edit().putInt(PREF_KEY_IN_APP_REVIEW_COUNT, value).apply()
+
+    var inAppReviewDate: LocalDate?
+        get() = sharedPref.getLong(PREF_KEY_IN_APP_REVIEW_DATE, 0).takeIf { it != 0L }?.toLocalDate()
+        set(value) = sharedPref.edit().putLong(PREF_KEY_IN_APP_REVIEW_DATE, value!!.toTimestamp()).apply()
+
+    var isAppReviewDone: Boolean
+        get() = sharedPref.getBoolean(PREF_KEY_IN_APP_REVIEW_DONE, false)
+        set(value) = sharedPref.edit().putBoolean(PREF_KEY_IN_APP_REVIEW_DONE, value).apply()
+
+    private fun getLong(id: Int, default: Int) = getLong(context.getString(id), default)
+
+    private fun getLong(id: String, default: Int) =
+        sharedPref.getLong(id, context.resources.getString(default).toLong())

    private fun getString(id: Int, default: Int) = getString(context.getString(id), default)

@ -159,4 +251,15 @@ class PreferencesRepository @Inject constructor(

    private fun getBoolean(id: String, default: Int) =
        sharedPref.getBoolean(id, context.resources.getBoolean(default))
+
+    private companion object {
+
+        private const val PREF_KEY_DASHBOARD_ITEMS_POSITION = "dashboard_items_position"
+
+        private const val PREF_KEY_IN_APP_REVIEW_COUNT = "in_app_review_count"
+
+        private const val PREF_KEY_IN_APP_REVIEW_DATE = "in_app_review_date"
+
+        private const val PREF_KEY_IN_APP_REVIEW_DONE = "in_app_review_done"
+    }
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/SchoolAnnouncementRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/SchoolAnnouncementRepository.kt
@ -0,0 +1,65 @@
+package io.github.wulkanowy.data.repositories
+
+import io.github.wulkanowy.data.db.dao.SchoolAnnouncementDao
+import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.mappers.mapToEntities
+import io.github.wulkanowy.sdk.Sdk
+import io.github.wulkanowy.utils.AutoRefreshHelper
+import io.github.wulkanowy.utils.getRefreshKey
+import io.github.wulkanowy.utils.init
+import io.github.wulkanowy.utils.networkBoundResource
+import io.github.wulkanowy.utils.uniqueSubtract
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.sync.Mutex
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class SchoolAnnouncementRepository @Inject constructor(
+    private val schoolAnnouncementDb: SchoolAnnouncementDao,
+    private val sdk: Sdk,
+    private val refreshHelper: AutoRefreshHelper,
+) {
+
+    private val saveFetchResultMutex = Mutex()
+
+    private val cacheKey = "school_announcement"
+
+    fun getSchoolAnnouncements(
+        student: Student,
+        forceRefresh: Boolean,
+        notify: Boolean = false
+    ) = networkBoundResource(
+        mutex = saveFetchResultMutex,
+        shouldFetch = {
+            it.isEmpty() || forceRefresh
+                || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, student))
+        },
+        query = {
+            schoolAnnouncementDb.loadAll(
+                student.studentId)
+        },
+        fetch = {
+            sdk.init(student)
+                .getDirectorInformation()
+                .mapToEntities(student)
+        },
+        saveFetchResult = { old, new ->
+            val schoolAnnouncementsToSave = (new uniqueSubtract old).onEach {
+                if (notify) it.isNotified = false
+            }
+
+            schoolAnnouncementDb.deleteAll(old uniqueSubtract new)
+            schoolAnnouncementDb.insertAll(schoolAnnouncementsToSave)
+            refreshHelper.updateLastRefreshTimestamp(getRefreshKey(cacheKey, student))
+        }
+    )
+    fun getSchoolAnnouncementFromDatabase(student: Student): Flow<List<SchoolAnnouncement>> {
+        return schoolAnnouncementDb.loadAll(student.studentId)
+    }
+
+    suspend fun updateSchoolAnnouncement(schoolAnnouncement: List<SchoolAnnouncement>) = schoolAnnouncementDb.updateAll(schoolAnnouncement)
+}
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/TimetableRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/TimetableRepository.kt
@ -2,11 +2,14 @@ package io.github.wulkanowy.data.repositories

 import io.github.wulkanowy.data.db.dao.TimetableAdditionalDao
 import io.github.wulkanowy.data.db.dao.TimetableDao
+import io.github.wulkanowy.data.db.dao.TimetableHeaderDao
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.db.entities.Timetable
 import io.github.wulkanowy.data.db.entities.TimetableAdditional
+import io.github.wulkanowy.data.db.entities.TimetableHeader
 import io.github.wulkanowy.data.mappers.mapToEntities
+import io.github.wulkanowy.data.pojos.TimetableFull
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.services.alarm.TimetableNotificationSchedulerHelper
 import io.github.wulkanowy.utils.AutoRefreshHelper
@ -16,8 +19,8 @@ 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 kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.sync.Mutex
 import java.time.LocalDate
 import javax.inject.Inject
@ -27,6 +30,7 @@ import javax.inject.Singleton
 class TimetableRepository @Inject constructor(
    private val timetableDb: TimetableDao,
    private val timetableAdditionalDb: TimetableAdditionalDao,
+    private val timetableHeaderDb: TimetableHeaderDao,
    private val sdk: Sdk,
    private val schedulerHelper: TimetableNotificationSchedulerHelper,
    private val refreshHelper: AutoRefreshHelper,
@ -36,53 +40,111 @@ class TimetableRepository @Inject constructor(

    private val cacheKey = "timetable"

-    fun getTimetable(student: Student, semester: Semester, start: LocalDate, end: LocalDate, forceRefresh: Boolean, refreshAdditional: Boolean = false) = networkBoundResource(
+    fun getTimetable(
+        student: Student, semester: Semester, start: LocalDate, end: LocalDate,
+        forceRefresh: Boolean, refreshAdditional: Boolean = false
+    ) = networkBoundResource(
        mutex = saveFetchResultMutex,
-        shouldFetch = { (timetable, additional) -> timetable.isEmpty() || (additional.isEmpty() && refreshAdditional) || forceRefresh || refreshHelper.isShouldBeRefreshed(getRefreshKey(cacheKey, semester, start, end)) },
-        query = {
-            timetableDb.loadAll(semester.diaryId, semester.studentId, start.monday, end.sunday)
-                .map { schedulerHelper.scheduleNotifications(it, student); it }
-                .combine(timetableAdditionalDb.loadAll(semester.diaryId, semester.studentId, start.monday, end.sunday)) { timetable, additional ->
-                    timetable to additional
-                }
-        },
-        fetch = {
-            sdk.init(student).switchDiary(semester.diaryId, semester.schoolYear)
-                .getTimetable(start.monday, end.sunday)
-                .let { (normal, additional) -> normal.mapToEntities(semester) to additional.mapToEntities(semester) }
+        shouldFetch = { (timetable, additional, headers) ->
+            val refreshKey = getRefreshKey(cacheKey, semester, start, end)
+            val isShouldRefresh = refreshHelper.isShouldBeRefreshed(refreshKey)
+            val isRefreshAdditional = additional.isEmpty() && refreshAdditional

+            val isNoData = timetable.isEmpty() || isRefreshAdditional || headers.isEmpty()
+
+            isNoData || forceRefresh || isShouldRefresh
        },
-        saveFetchResult = { (oldTimetable, oldAdditional), (newTimetable, newAdditional) ->
-            refreshTimetable(student, oldTimetable, newTimetable)
-            refreshAdditional(oldAdditional, newAdditional)
+        query = { getFullTimetableFromDatabase(student, semester, start, end) },
+        fetch = {
+            val timetableFull = sdk.init(student)
+                .switchDiary(semester.diaryId, semester.schoolYear)
+                .getTimetableFull(start.monday, end.sunday)
+
+            timetableFull.mapToEntities(semester)
+        },
+        saveFetchResult = { timetableOld, timetableNew ->
+            refreshTimetable(student, timetableOld.lessons, timetableNew.lessons)
+            refreshAdditional(timetableOld.additional, timetableNew.additional)
+            refreshDayHeaders(timetableOld.headers, timetableNew.headers)

            refreshHelper.updateLastRefreshTimestamp(getRefreshKey(cacheKey, semester, start, end))
        },
-        filterResult = { (timetable, additional) ->
-            timetable.filter { item ->
-                item.date in start..end
-            } to additional.filter { item ->
-                item.date in start..end
-            }
+        filterResult = { (timetable, additional, headers) ->
+            TimetableFull(
+                lessons = timetable.filter { it.date in start..end },
+                additional = additional.filter { it.date in start..end },
+                headers = headers.filter { it.date in start..end }
+            )
        }
    )

-    private suspend fun refreshTimetable(student: Student, old: List<Timetable>, new: List<Timetable>) {
-        timetableDb.deleteAll(old.uniqueSubtract(new).also { schedulerHelper.cancelScheduled(it) })
-        timetableDb.insertAll(new.uniqueSubtract(old).also { schedulerHelper.scheduleNotifications(it, student) }.map { item ->
-            item.also { new ->
-                old.singleOrNull { new.start == it.start }?.let { old ->
-                    return@map new.copy(
-                        room = if (new.room.isEmpty()) old.room else new.room,
-                        teacher = if (new.teacher.isEmpty() && !new.changes && !old.changes) old.teacher else new.teacher
+    private fun getFullTimetableFromDatabase(
+        student: Student, semester: Semester,
+        start: LocalDate, end: LocalDate
+    ): Flow<TimetableFull> {
+        val timetableFlow = timetableDb.loadAll(
+            diaryId = semester.diaryId,
+            studentId = semester.studentId,
+            from = start.monday,
+            end = end.sunday
+        )
+        val headersFlow = timetableHeaderDb.loadAll(
+            diaryId = semester.diaryId,
+            studentId = semester.studentId,
+            from = start.monday,
+            end = end.sunday
+        )
+        val additionalFlow = timetableAdditionalDb.loadAll(
+            diaryId = semester.diaryId,
+            studentId = semester.studentId,
+            from = start.monday,
+            end = end.sunday
+        )
+        return combine(timetableFlow, headersFlow, additionalFlow) { lessons, headers, additional ->
+            schedulerHelper.scheduleNotifications(lessons, student)
+
+            TimetableFull(
+                lessons = lessons,
+                headers = headers,
+                additional = additional
            )
        }
    }
-        })
+
+    private suspend fun refreshTimetable(
+        student: Student,
+        lessonsOld: List<Timetable>, lessonsNew: List<Timetable>
+    ) {
+        val lessonsToRemove = lessonsOld uniqueSubtract lessonsNew
+        val lessonsToAdd = (lessonsNew uniqueSubtract lessonsOld).map { new ->
+            val matchingOld = lessonsOld.singleOrNull { new.start == it.start }
+            if (matchingOld != null) {
+                val useOldTeacher = new.teacher.isEmpty() && !new.changes && !matchingOld.changes
+                new.copy(
+                    room = if (new.room.isEmpty()) matchingOld.room else new.room,
+                    teacher = if (useOldTeacher) matchingOld.teacher
+                    else new.teacher
+                )
+            } else new
        }

-    private suspend fun refreshAdditional(old: List<TimetableAdditional>, new: List<TimetableAdditional>) {
-        timetableAdditionalDb.deleteAll(old.uniqueSubtract(new))
-        timetableAdditionalDb.insertAll(new.uniqueSubtract(old))
+        timetableDb.deleteAll(lessonsToRemove)
+        timetableDb.insertAll(lessonsToAdd)
+
+        schedulerHelper.cancelScheduled(lessonsToRemove, student)
+        schedulerHelper.scheduleNotifications(lessonsToAdd, student)
+    }
+
+    private suspend fun refreshAdditional(
+        old: List<TimetableAdditional>,
+        new: List<TimetableAdditional>
+    ) {
+        timetableAdditionalDb.deleteAll(old uniqueSubtract new)
+        timetableAdditionalDb.insertAll(new uniqueSubtract old)
+    }
+
+    private suspend fun refreshDayHeaders(old: List<TimetableHeader>, new: List<TimetableHeader>) {
+        timetableHeaderDb.deleteAll(old uniqueSubtract new)
+        timetableHeaderDb.insertAll(new uniqueSubtract old)
    }
 }
--- a/app/src/main/java/io/github/wulkanowy/services/ServicesModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/ServicesModule.kt
@ -15,14 +15,19 @@ import dagger.multibindings.IntoSet
 import io.github.wulkanowy.services.sync.channels.Channel
 import io.github.wulkanowy.services.sync.channels.DebugChannel
 import io.github.wulkanowy.services.sync.channels.LuckyNumberChannel
+import io.github.wulkanowy.services.sync.channels.NewConferencesChannel
+import io.github.wulkanowy.services.sync.channels.NewExamChannel
 import io.github.wulkanowy.services.sync.channels.NewGradesChannel
+import io.github.wulkanowy.services.sync.channels.NewHomeworkChannel
 import io.github.wulkanowy.services.sync.channels.NewMessagesChannel
 import io.github.wulkanowy.services.sync.channels.NewNotesChannel
+import io.github.wulkanowy.services.sync.channels.NewSchoolAnnouncementsChannel
 import io.github.wulkanowy.services.sync.channels.PushChannel
 import io.github.wulkanowy.services.sync.channels.UpcomingLessonsChannel
 import io.github.wulkanowy.services.sync.works.AttendanceSummaryWork
 import io.github.wulkanowy.services.sync.works.AttendanceWork
 import io.github.wulkanowy.services.sync.works.CompletedLessonWork
+import io.github.wulkanowy.services.sync.works.ConferenceWork
 import io.github.wulkanowy.services.sync.works.ExamWork
 import io.github.wulkanowy.services.sync.works.GradeStatisticsWork
 import io.github.wulkanowy.services.sync.works.GradeWork
@ -31,6 +36,7 @@ import io.github.wulkanowy.services.sync.works.LuckyNumberWork
 import io.github.wulkanowy.services.sync.works.MessageWork
 import io.github.wulkanowy.services.sync.works.NoteWork
 import io.github.wulkanowy.services.sync.works.RecipientWork
+import io.github.wulkanowy.services.sync.works.SchoolAnnouncementWork
 import io.github.wulkanowy.services.sync.works.TeacherWork
 import io.github.wulkanowy.services.sync.works.TimetableWork
 import io.github.wulkanowy.services.sync.works.Work
@ -44,15 +50,18 @@ abstract class ServicesModule {
    companion object {

        @Provides
-        fun provideWorkManager(@ApplicationContext context: Context) = WorkManager.getInstance(context)
+        fun provideWorkManager(@ApplicationContext context: Context) =
+            WorkManager.getInstance(context)

        @Singleton
        @Provides
-        fun provideNotificationManager(@ApplicationContext context: Context) = NotificationManagerCompat.from(context)
+        fun provideNotificationManager(@ApplicationContext context: Context) =
+            NotificationManagerCompat.from(context)

        @Singleton
        @Provides
-        fun provideAlarmManager(@ApplicationContext context: Context): AlarmManager = context.getSystemService()!!
+        fun provideAlarmManager(@ApplicationContext context: Context): AlarmManager =
+            context.getSystemService()!!
    }

    @Binds
@ -67,6 +76,10 @@ abstract class ServicesModule {
    @IntoSet
    abstract fun provideAttendanceWork(work: AttendanceWork): Work

+    @Binds
+    @IntoSet
+    abstract fun provideConferenceWork(work: ConferenceWork): Work
+
    @Binds
    @IntoSet
    abstract fun provideExamWork(work: ExamWork): Work
@ -107,6 +120,10 @@ abstract class ServicesModule {
    @IntoSet
    abstract fun provideGradeStatistics(work: GradeStatisticsWork): Work

+    @Binds
+    @IntoSet
+    abstract fun provideSchoolAnnouncementWork(work: SchoolAnnouncementWork): Work
+
    @Binds
    @IntoSet
    abstract fun provideDebugChannel(channel: DebugChannel): Channel
@ -115,6 +132,18 @@ abstract class ServicesModule {
    @IntoSet
    abstract fun provideLuckyNumberChannel(channel: LuckyNumberChannel): Channel

+    @Binds
+    @IntoSet
+    abstract fun provideNewConferenceChannel(channel: NewConferencesChannel): Channel
+
+    @Binds
+    @IntoSet
+    abstract fun provideNewExamChannel(channel: NewExamChannel): Channel
+
+    @Binds
+    @IntoSet
+    abstract fun provideNewHomeworkChannel(channel: NewHomeworkChannel): Channel
+
    @Binds
    @IntoSet
    abstract fun provideNewGradesChannel(channel: NewGradesChannel): Channel
@ -127,6 +156,10 @@ abstract class ServicesModule {
    @IntoSet
    abstract fun provideNewNotesChannel(channel: NewNotesChannel): Channel

+    @Binds
+    @IntoSet
+    abstract fun provideNewSchoolAnnouncementChannel(channel: NewSchoolAnnouncementsChannel): Channel
+
    @Binds
    @IntoSet
    abstract fun providePushChannel(channel: PushChannel): Channel
--- a/app/src/main/java/io/github/wulkanowy/services/alarm/TimetableNotificationReceiver.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/alarm/TimetableNotificationReceiver.kt
@ -1,6 +1,5 @@
 package io.github.wulkanowy.services.alarm

-import android.annotation.SuppressLint
 import android.app.PendingIntent
 import android.app.PendingIntent.FLAG_UPDATE_CURRENT
 import android.content.Context
@ -20,6 +19,7 @@ import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.flowWithResource
 import io.github.wulkanowy.utils.getCompatColor
 import io.github.wulkanowy.utils.toLocalDateTime
+import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
@ -50,7 +50,7 @@ class TimetableNotificationReceiver : HiltBroadcastReceiver() {
        const val LESSON_END = "end_timestamp"
    }

-    @SuppressLint("CheckResult")
+    @OptIn(DelicateCoroutinesApi::class)
    override fun onReceive(context: Context, intent: Intent) {
        super.onReceive(context, intent)
        Timber.d("Receiving intent... ${intent.toUri(0)}")
--- a/app/src/main/java/io/github/wulkanowy/services/alarm/TimetableNotificationSchedulerHelper.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/alarm/TimetableNotificationSchedulerHelper.kt
@ -51,7 +51,8 @@ class TimetableNotificationSchedulerHelper @Inject constructor(
        lesson: Timetable
    ) = day.getOrNull(index - 1)?.end ?: lesson.start.minusMinutes(30)

-    suspend fun cancelScheduled(lessons: List<Timetable>, studentId: Int = 1) {
+    suspend fun cancelScheduled(lessons: List<Timetable>, student: Student) {
+        val studentId = student.studentId
        withContext(dispatchersProvider.backgroundThread) {
            lessons.sortedBy { it.start }.forEachIndexed { index, lesson ->
                val upcomingTime = getUpcomingLessonTime(index, lessons, lesson)
@ -78,7 +79,7 @@ class TimetableNotificationSchedulerHelper @Inject constructor(

    suspend fun scheduleNotifications(lessons: List<Timetable>, student: Student) {
        if (!preferencesRepository.isUpcomingLessonsNotificationsEnable) {
-            return cancelScheduled(lessons, student.studentId)
+            return cancelScheduled(lessons, student)
        }

        withContext(dispatchersProvider.backgroundThread) {
@ -89,7 +90,7 @@ class TimetableNotificationSchedulerHelper @Inject constructor(
                    val canceled = day.filter { it.canceled }
                    val active = day.filter { !it.canceled }

-                    cancelScheduled(canceled)
+                    cancelScheduled(canceled, student)
                    active.forEachIndexed { index, lesson ->
                        val intent = createIntent(student, lesson, active.getOrNull(index + 1))

--- a/app/src/main/java/io/github/wulkanowy/services/sync/SyncWorker.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/SyncWorker.kt
@ -22,6 +22,8 @@ import io.github.wulkanowy.services.sync.works.Work
 import io.github.wulkanowy.utils.getCompatColor
 import kotlinx.coroutines.coroutineScope
 import timber.log.Timber
+import java.time.LocalDateTime
+import java.time.ZoneId
 import kotlin.random.Random

@HiltWorker
@ -48,6 +50,7 @@ class SyncWorker @AssistedInject constructor(
                Timber.i("${work::class.java.simpleName} is starting")
                work.doWork(student, semester)
                Timber.i("${work::class.java.simpleName} result: Success")
+                preferencesRepository.lasSyncDate = LocalDateTime.now(ZoneId.systemDefault())
                null
            } catch (e: Throwable) {
                Timber.w("${work::class.java.simpleName} result: An exception ${e.message} occurred")
@ -81,7 +84,7 @@ class SyncWorker @AssistedInject constructor(
            Random.nextInt(Int.MAX_VALUE),
            NotificationCompat.Builder(applicationContext, DebugChannel.CHANNEL_ID)
                .setContentTitle("Debug notification")
-                .setSmallIcon(R.drawable.ic_stat_push)
+                .setSmallIcon(R.drawable.ic_stat_all)
                .setAutoCancel(true)
                .setColor(applicationContext.getCompatColor(R.color.colorPrimary))
                .setStyle(BigTextStyle().bigText("${SyncWorker::class.java.simpleName} result: $result"))
--- a/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewConferencesChannel.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewConferencesChannel.kt
@ -0,0 +1,32 @@
+package io.github.wulkanowy.services.sync.channels
+
+import android.annotation.TargetApi
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import javax.inject.Inject
+
+@TargetApi(26)
+class NewConferencesChannel @Inject constructor(
+    private val notificationManager: NotificationManagerCompat,
+    @ApplicationContext private val context: Context
+) : Channel {
+
+    companion object {
+        const val CHANNEL_ID = "new_conferences_channel"
+    }
+
+    override fun create() {
+        notificationManager.createNotificationChannel(
+            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_new_conference), NotificationManager.IMPORTANCE_HIGH)
+                .apply {
+                    enableLights(true)
+                    enableVibration(true)
+                    lockscreenVisibility = Notification.VISIBILITY_PUBLIC
+                })
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewExamChannel.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewExamChannel.kt
@ -0,0 +1,32 @@
+package io.github.wulkanowy.services.sync.channels
+
+import android.annotation.TargetApi
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import javax.inject.Inject
+
+@TargetApi(26)
+class NewExamChannel @Inject constructor(
+    private val notificationManager: NotificationManagerCompat,
+    @ApplicationContext private val context: Context
+) : Channel {
+
+    companion object {
+        const val CHANNEL_ID = "new_exam_channel"
+    }
+
+    override fun create() {
+        notificationManager.createNotificationChannel(
+            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_new_exam), NotificationManager.IMPORTANCE_HIGH)
+                .apply {
+                    enableLights(true)
+                    enableVibration(true)
+                    lockscreenVisibility = Notification.VISIBILITY_PUBLIC
+                })
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewHomeworkChannel.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewHomeworkChannel.kt
@ -0,0 +1,32 @@
+package io.github.wulkanowy.services.sync.channels
+
+import android.annotation.TargetApi
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import javax.inject.Inject
+
+@TargetApi(26)
+class NewHomeworkChannel @Inject constructor(
+    private val notificationManager: NotificationManagerCompat,
+    @ApplicationContext private val context: Context
+) : Channel {
+
+    companion object {
+        const val CHANNEL_ID = "new_homework_channel"
+    }
+
+    override fun create() {
+        notificationManager.createNotificationChannel(
+            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_new_homework), NotificationManager.IMPORTANCE_HIGH)
+                .apply {
+                    enableLights(true)
+                    enableVibration(true)
+                    lockscreenVisibility = Notification.VISIBILITY_PUBLIC
+                })
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewSchoolAnnouncementsChannel.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/channels/NewSchoolAnnouncementsChannel.kt
@ -0,0 +1,32 @@
+package io.github.wulkanowy.services.sync.channels
+
+import android.annotation.TargetApi
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import javax.inject.Inject
+
+@TargetApi(26)
+class NewSchoolAnnouncementsChannel @Inject constructor(
+    private val notificationManager: NotificationManagerCompat,
+    @ApplicationContext private val context: Context
+) : Channel {
+
+    companion object {
+        const val CHANNEL_ID = "new_school_announcements_channel"
+    }
+
+    override fun create() {
+        notificationManager.createNotificationChannel(
+            NotificationChannel(CHANNEL_ID, context.getString(R.string.channel_new_school_announcement), NotificationManager.IMPORTANCE_HIGH)
+                .apply {
+                    enableLights(true)
+                    enableVibration(true)
+                    lockscreenVisibility = Notification.VISIBILITY_PUBLIC
+                })
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/BaseNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/BaseNotification.kt
@ -0,0 +1,102 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.app.PendingIntent
+import android.content.Context
+import android.os.Build
+import androidx.annotation.PluralsRes
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.data.pojos.Notification
+import io.github.wulkanowy.data.pojos.OneNotification
+import io.github.wulkanowy.ui.modules.main.MainActivity
+import io.github.wulkanowy.utils.getCompatBitmap
+import io.github.wulkanowy.utils.getCompatColor
+import io.github.wulkanowy.utils.nickOrName
+import kotlin.random.Random
+
+abstract class BaseNotification(
+    private val context: Context,
+    private val notificationManager: NotificationManagerCompat,
+) {
+
+    protected fun sendNotification(notification: Notification, student: Student) =
+        when (notification) {
+            is OneNotification -> sendOneNotification(notification, student)
+            is MultipleNotifications -> sendMultipleNotifications(notification, student)
+        }
+
+    private fun sendOneNotification(notification: OneNotification, student: Student?) {
+        notificationManager.notify(
+            Random.nextInt(Int.MAX_VALUE),
+            getNotificationBuilder(notification).apply {
+                val content = context.getString(
+                    notification.contentStringRes,
+                    *notification.contentValues.toTypedArray()
+                )
+                setContentTitle(context.getString(notification.titleStringRes))
+                setContentText(content)
+                setStyle(
+                    NotificationCompat.BigTextStyle()
+                        .setSummaryText(student?.nickOrName)
+                        .bigText(content)
+                )
+            }.build()
+        )
+    }
+
+    private fun sendMultipleNotifications(notification: MultipleNotifications, student: Student) {
+        val group = notification.type.group + student.id
+        val groupId = student.id * 100 + notification.type.ordinal
+
+        notification.lines.forEach { item ->
+            notificationManager.notify(
+                Random.nextInt(Int.MAX_VALUE),
+                getNotificationBuilder(notification).apply {
+                    setContentTitle(getQuantityString(notification.titleStringRes, 1))
+                    setContentText(item)
+                    setStyle(
+                        NotificationCompat.BigTextStyle()
+                            .setSummaryText(student.nickOrName)
+                            .bigText(item)
+                    )
+                    setGroup(group)
+                }.build()
+            )
+        }
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) return
+
+        notificationManager.notify(
+            groupId.toInt(),
+            getNotificationBuilder(notification).apply {
+                setSmallIcon(notification.icon)
+                setGroup(group)
+                setStyle(NotificationCompat.InboxStyle().setSummaryText(student.nickOrName))
+                setGroupSummary(true)
+            }.build()
+        )
+    }
+
+    private fun getNotificationBuilder(notification: Notification) = NotificationCompat
+        .Builder(context, notification.type.channel)
+        .setLargeIcon(context.getCompatBitmap(notification.icon, R.color.colorPrimary))
+        .setSmallIcon(R.drawable.ic_stat_all)
+        .setAutoCancel(true)
+        .setDefaults(NotificationCompat.DEFAULT_ALL)
+        .setPriority(NotificationCompat.PRIORITY_HIGH)
+        .setColor(context.getCompatColor(R.color.colorPrimary))
+        .setContentIntent(
+            PendingIntent.getActivity(
+                context, notification.startMenu.id,
+                MainActivity.getStartIntent(context, notification.startMenu, true),
+                PendingIntent.FLAG_UPDATE_CURRENT
+            )
+        )
+
+    private fun getQuantityString(@PluralsRes id: Int, value: Int): String {
+        return context.resources.getQuantityString(id, value, value)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewConferenceNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewConferenceNotification.kt
@ -0,0 +1,38 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Conference
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.toFormattedString
+import java.time.LocalDateTime
+import javax.inject.Inject
+
+class NewConferenceNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(items: List<Conference>, student: Student) {
+        val today = LocalDateTime.now()
+        val lines = items.filter { !it.date.isBefore(today) }.map {
+            "${it.date.toFormattedString("dd.MM")} - ${it.title}: ${it.subject}"
+        }.ifEmpty { return }
+
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_CONFERENCE,
+            icon = R.drawable.ic_more_conferences,
+            titleStringRes = R.plurals.conference_notify_new_item_title,
+            contentStringRes = R.plurals.conference_notify_new_items,
+            summaryStringRes = R.plurals.conference_number_item,
+            startMenu = MainView.Section.CONFERENCE,
+            lines = lines
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewExamNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewExamNotification.kt
@ -0,0 +1,38 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Exam
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.toFormattedString
+import java.time.LocalDate
+import javax.inject.Inject
+
+class NewExamNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(items: List<Exam>, student: Student) {
+        val today = LocalDate.now()
+        val lines = items.filter { !it.date.isBefore(today) }.map {
+            "${it.date.toFormattedString("dd.MM")} - ${it.subject}: ${it.description}"
+        }.ifEmpty { return }
+
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_EXAM,
+            icon = R.drawable.ic_main_exam,
+            titleStringRes = R.plurals.exam_notify_new_item_title,
+            contentStringRes = R.plurals.exam_notify_new_item_content,
+            summaryStringRes = R.plurals.exam_number_item,
+            startMenu = MainView.Section.EXAM,
+            lines = lines
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewGradeNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewGradeNotification.kt
@ -0,0 +1,66 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Grade
+import io.github.wulkanowy.data.db.entities.GradeSummary
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.ui.modules.main.MainView
+import javax.inject.Inject
+
+class NewGradeNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notifyDetails(items: List<Grade>, student: Student) {
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_GRADE_DETAILS,
+            icon = R.drawable.ic_stat_grade,
+            titleStringRes = R.plurals.grade_new_items,
+            contentStringRes = R.plurals.grade_notify_new_items,
+            summaryStringRes = R.plurals.grade_number_item,
+            startMenu = MainView.Section.GRADE,
+            lines = items.map {
+                "${it.subject}: ${it.entry}"
+            }
+        )
+
+        sendNotification(notification, student)
+    }
+
+    fun notifyPredicted(items: List<GradeSummary>, student: Student) {
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_GRADE_PREDICTED,
+            icon = R.drawable.ic_stat_grade,
+            titleStringRes = R.plurals.grade_new_items_predicted,
+            contentStringRes = R.plurals.grade_notify_new_items_predicted,
+            summaryStringRes = R.plurals.grade_number_item,
+            startMenu = MainView.Section.GRADE,
+            lines = items.map {
+                "${it.subject}: ${it.predictedGrade}"
+            }
+        )
+
+        sendNotification(notification, student)
+    }
+
+    fun notifyFinal(items: List<GradeSummary>, student: Student) {
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_GRADE_FINAL,
+            icon = R.drawable.ic_stat_grade,
+            titleStringRes = R.plurals.grade_new_items_final,
+            contentStringRes = R.plurals.grade_notify_new_items_final,
+            summaryStringRes = R.plurals.grade_number_item,
+            startMenu = MainView.Section.GRADE,
+            lines = items.map {
+                "${it.subject}: ${it.finalGrade}"
+            }
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewHomeworkNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewHomeworkNotification.kt
@ -0,0 +1,38 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Homework
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.toFormattedString
+import java.time.LocalDate
+import javax.inject.Inject
+
+class NewHomeworkNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(items: List<Homework>, student: Student) {
+        val today = LocalDate.now()
+        val lines = items.filter { !it.date.isBefore(today) }.map {
+            "${it.date.toFormattedString("dd.MM")} - ${it.subject}: ${it.content}"
+        }.ifEmpty { return }
+
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_HOMEWORK,
+            icon = R.drawable.ic_more_homework,
+            titleStringRes = R.plurals.homework_notify_new_item_title,
+            contentStringRes = R.plurals.homework_notify_new_item_content,
+            summaryStringRes = R.plurals.homework_number_item,
+            startMenu = MainView.Section.HOMEWORK,
+            lines = lines
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewLuckyNumberNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewLuckyNumberNotification.kt
@ -0,0 +1,30 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.OneNotification
+import io.github.wulkanowy.ui.modules.main.MainView
+import javax.inject.Inject
+
+class NewLuckyNumberNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(item: LuckyNumber, student: Student) {
+        val notification = OneNotification(
+            type = NotificationType.NEW_LUCKY_NUMBER,
+            icon = R.drawable.ic_stat_luckynumber,
+            titleStringRes = R.string.lucky_number_notify_new_item_title,
+            contentStringRes = R.string.lucky_number_notify_new_item,
+            startMenu = MainView.Section.LUCKY_NUMBER,
+            contentValues = listOf(item.luckyNumber.toString())
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewMessageNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewMessageNotification.kt
@ -0,0 +1,33 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Message
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.ui.modules.main.MainView
+import javax.inject.Inject
+
+class NewMessageNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(items: List<Message>, student: Student) {
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_MESSAGE,
+            icon = R.drawable.ic_stat_message,
+            titleStringRes = R.plurals.message_new_items,
+            contentStringRes = R.plurals.message_notify_new_items,
+            summaryStringRes = R.plurals.message_number_item,
+            startMenu = MainView.Section.MESSAGE,
+            lines = items.map {
+                "${it.sender}: ${it.subject}"
+            }
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewNoteNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewNoteNotification.kt
@ -0,0 +1,46 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Note
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.sdk.scrapper.notes.NoteCategory
+import io.github.wulkanowy.ui.modules.main.MainView
+import javax.inject.Inject
+
+class NewNoteNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(items: List<Note>, student: Student) {
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_NOTE,
+            icon = R.drawable.ic_stat_note,
+            titleStringRes = when (NoteCategory.getByValue(items.first().categoryType)) {
+                NoteCategory.POSITIVE -> R.plurals.praise_new_items
+                NoteCategory.NEUTRAL -> R.plurals.neutral_note_new_items
+                else -> R.plurals.note_new_items
+            },
+            contentStringRes = when (NoteCategory.getByValue(items.first().categoryType)) {
+                NoteCategory.POSITIVE -> R.plurals.praise_notify_new_items
+                NoteCategory.NEUTRAL -> R.plurals.neutral_note_notify_new_items
+                else -> R.plurals.note_notify_new_items
+            },
+            summaryStringRes = when (NoteCategory.getByValue(items.first().categoryType)) {
+                NoteCategory.POSITIVE -> R.plurals.praise_number_item
+                NoteCategory.NEUTRAL -> R.plurals.neutral_note_number_item
+                else -> R.plurals.note_number_item
+            },
+            startMenu = MainView.Section.NOTE,
+            lines = items.map {
+                "${it.teacher}: ${it.category}"
+            }
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewSchoolAnnouncementNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NewSchoolAnnouncementNotification.kt
@ -0,0 +1,33 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import android.content.Context
+import androidx.core.app.NotificationManagerCompat
+import dagger.hilt.android.qualifiers.ApplicationContext
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.pojos.MultipleNotifications
+import io.github.wulkanowy.ui.modules.main.MainView
+import javax.inject.Inject
+
+class NewSchoolAnnouncementNotification @Inject constructor(
+    @ApplicationContext private val context: Context,
+    notificationManager: NotificationManagerCompat,
+) : BaseNotification(context, notificationManager) {
+
+    fun notify(items: List<SchoolAnnouncement>, student: Student) {
+        val notification = MultipleNotifications(
+            type = NotificationType.NEW_ANNOUNCEMENT,
+            icon = R.drawable.ic_all_about,
+            titleStringRes = R.plurals.school_announcement_notify_new_item_title,
+            contentStringRes = R.plurals.school_announcement_notify_new_items,
+            summaryStringRes = R.plurals.school_announcement_number_item,
+            startMenu = MainView.Section.SCHOOL_ANNOUNCEMENT,
+            lines = items.map {
+                "${it.subject}: ${it.content}"
+            }
+        )
+
+        sendNotification(notification, student)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NotificationType.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/notifications/NotificationType.kt
@ -0,0 +1,23 @@
+package io.github.wulkanowy.services.sync.notifications
+
+import io.github.wulkanowy.services.sync.channels.LuckyNumberChannel
+import io.github.wulkanowy.services.sync.channels.NewConferencesChannel
+import io.github.wulkanowy.services.sync.channels.NewExamChannel
+import io.github.wulkanowy.services.sync.channels.NewGradesChannel
+import io.github.wulkanowy.services.sync.channels.NewHomeworkChannel
+import io.github.wulkanowy.services.sync.channels.NewMessagesChannel
+import io.github.wulkanowy.services.sync.channels.NewNotesChannel
+import io.github.wulkanowy.services.sync.channels.NewSchoolAnnouncementsChannel
+
+enum class NotificationType(val group: String, val channel: String) {
+    NEW_CONFERENCE("new_conferences_group", NewConferencesChannel.CHANNEL_ID),
+    NEW_EXAM("new_exam_group", NewExamChannel.CHANNEL_ID),
+    NEW_GRADE_DETAILS("new_grade_details_group", NewGradesChannel.CHANNEL_ID),
+    NEW_GRADE_PREDICTED("new_grade_predicted_group", NewGradesChannel.CHANNEL_ID),
+    NEW_GRADE_FINAL("new_grade_final_group", NewGradesChannel.CHANNEL_ID),
+    NEW_HOMEWORK("new_homework_group", NewHomeworkChannel.CHANNEL_ID),
+    NEW_LUCKY_NUMBER("lucky_number_group", LuckyNumberChannel.CHANNEL_ID),
+    NEW_MESSAGE("new_message_group", NewMessagesChannel.CHANNEL_ID),
+    NEW_NOTE("new_notes_group", NewNotesChannel.CHANNEL_ID),
+    NEW_ANNOUNCEMENT("new_school_announcements_group", NewSchoolAnnouncementsChannel.CHANNEL_ID),
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/works/ConferenceWork.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/works/ConferenceWork.kt
@ -0,0 +1,35 @@
+package io.github.wulkanowy.services.sync.works
+
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.repositories.ConferenceRepository
+import io.github.wulkanowy.data.repositories.PreferencesRepository
+import io.github.wulkanowy.services.sync.notifications.NewConferenceNotification
+import io.github.wulkanowy.utils.waitForResult
+import kotlinx.coroutines.flow.first
+import javax.inject.Inject
+
+class ConferenceWork @Inject constructor(
+    private val conferenceRepository: ConferenceRepository,
+    private val preferencesRepository: PreferencesRepository,
+    private val newConferenceNotification: NewConferenceNotification,
+) : Work {
+
+    override suspend fun doWork(student: Student, semester: Semester) {
+        conferenceRepository.getConferences(
+            student = student,
+            semester = semester,
+            forceRefresh = true,
+            notify = preferencesRepository.isNotificationsEnable
+        ).waitForResult()
+
+        conferenceRepository.getConferenceFromDatabase(semester).first()
+            .filter { !it.isNotified }.let {
+                if (it.isNotEmpty()) newConferenceNotification.notify(it, student)
+
+                conferenceRepository.updateConference(it.onEach { conference ->
+                    conference.isNotified = true
+                })
+            }
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/sync/works/ExamWork.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/works/ExamWork.kt
@ -3,13 +3,34 @@ package io.github.wulkanowy.services.sync.works
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.repositories.ExamRepository
+import io.github.wulkanowy.data.repositories.PreferencesRepository
+import io.github.wulkanowy.services.sync.notifications.NewExamNotification
 import io.github.wulkanowy.utils.waitForResult
+import kotlinx.coroutines.flow.first
 import java.time.LocalDate.now
 import javax.inject.Inject

-class ExamWork @Inject constructor(private val examRepository: ExamRepository) : Work {
+class ExamWork @Inject constructor(
+    private val examRepository: ExamRepository,
+    private val preferencesRepository: PreferencesRepository,
+    private val newExamNotification: NewExamNotification,
+) : Work {

    override suspend fun doWork(student: Student, semester: Semester) {
-        examRepository.getExams(student, semester, now(), now(), true).waitForResult()
+        examRepository.getExams(
+            student = student,
+            semester = semester,
+            start = now(),
+            end = now(),
+            forceRefresh = true,
+            notify = preferencesRepository.isNotificationsEnable
+        ).waitForResult()
+
+        examRepository.getExamsFromDatabase(semester, now()).first()
+            .filter { !it.isNotified }.let {
+                if (it.isNotEmpty()) newExamNotification.notify(it, student)
+
+                examRepository.updateExam(it.onEach { exam -> exam.isNotified = true })
+            }
    }
 }
--- a/app/src/main/java/io/github/wulkanowy/services/sync/works/GradeWork.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/works/GradeWork.kt
@ -1,103 +1,51 @@
 package io.github.wulkanowy.services.sync.works

-import android.app.PendingIntent
-import android.app.PendingIntent.FLAG_UPDATE_CURRENT
-import android.content.Context
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationCompat.DEFAULT_ALL
-import androidx.core.app.NotificationCompat.PRIORITY_HIGH
-import androidx.core.app.NotificationManagerCompat
-import dagger.hilt.android.qualifiers.ApplicationContext
-import io.github.wulkanowy.R
-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.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.repositories.GradeRepository
 import io.github.wulkanowy.data.repositories.PreferencesRepository
-import io.github.wulkanowy.services.sync.channels.NewGradesChannel
-import io.github.wulkanowy.ui.modules.main.MainActivity
-import io.github.wulkanowy.ui.modules.main.MainView
-import io.github.wulkanowy.utils.getCompatColor
+import io.github.wulkanowy.services.sync.notifications.NewGradeNotification
 import io.github.wulkanowy.utils.waitForResult
 import kotlinx.coroutines.flow.first
 import javax.inject.Inject
-import kotlin.random.Random

 class GradeWork @Inject constructor(
-    @ApplicationContext private val context: Context,
-    private val notificationManager: NotificationManagerCompat,
    private val gradeRepository: GradeRepository,
-    private val preferencesRepository: PreferencesRepository
+    private val preferencesRepository: PreferencesRepository,
+    private val newGradeNotification: NewGradeNotification,
 ) : Work {

    override suspend fun doWork(student: Student, semester: Semester) {
-        gradeRepository.getGrades(student, semester, true, preferencesRepository.isNotificationsEnable).waitForResult()
+        gradeRepository.getGrades(
+            student = student,
+            semester = semester,
+            forceRefresh = true,
+            notify = preferencesRepository.isNotificationsEnable
+        ).waitForResult()
+
+        gradeRepository.getGradesFromDatabase(semester).first()
+            .filter { !it.isNotified }.let {
+                if (it.isNotEmpty()) newGradeNotification.notifyDetails(it, student)

-        gradeRepository.getNotNotifiedGrades(semester).first().let {
-            if (it.isNotEmpty()) notifyDetails(it)
                gradeRepository.updateGrades(it.onEach { grade -> grade.isNotified = true })
            }

-        gradeRepository.getNotNotifiedPredictedGrades(semester).first().let {
-            if (it.isNotEmpty()) notifyPredicted(it)
-            gradeRepository.updateGradesSummary(it.onEach { grade -> grade.isPredictedGradeNotified = true })
-        }
+        gradeRepository.getGradesPredictedFromDatabase(semester).first()
+            .filter { !it.isPredictedGradeNotified }.let {
+                if (it.isNotEmpty()) newGradeNotification.notifyPredicted(it, student)

-        gradeRepository.getNotNotifiedFinalGrades(semester).first().let {
-            if (it.isNotEmpty()) notifyFinal(it)
-            gradeRepository.updateGradesSummary(it.onEach { grade -> grade.isFinalGradeNotified = true })
-        }
-    }
-
-    private fun getNotificationBuilder(): NotificationCompat.Builder {
-        return NotificationCompat.Builder(context, NewGradesChannel.CHANNEL_ID)
-            .setSmallIcon(R.drawable.ic_stat_grade)
-            .setAutoCancel(true)
-            .setPriority(PRIORITY_HIGH)
-            .setDefaults(DEFAULT_ALL)
-            .setColor(context.getCompatColor(R.color.colorPrimary))
-            .setContentIntent(
-                PendingIntent.getActivity(context, MainView.Section.GRADE.id,
-                    MainActivity.getStartIntent(context, MainView.Section.GRADE, true), FLAG_UPDATE_CURRENT))
-    }
-
-    private fun notifyDetails(grades: List<Grade>) {
-        notificationManager.notify(Random.nextInt(Int.MAX_VALUE), getNotificationBuilder()
-            .setContentTitle(context.resources.getQuantityString(R.plurals.grade_new_items, grades.size, grades.size))
-            .setContentText(context.resources.getQuantityString(R.plurals.grade_notify_new_items, grades.size, grades.size))
-            .setStyle(NotificationCompat.InboxStyle().run {
-                setSummaryText(context.resources.getQuantityString(R.plurals.grade_number_item, grades.size, grades.size))
-                grades.forEach { addLine("${it.subject}: ${it.entry}") }
-                this
+                gradeRepository.updateGradesSummary(it.onEach { grade ->
+                    grade.isPredictedGradeNotified = true
                })
-            .build()
-        )
            }

-    private fun notifyPredicted(gradesSummary: List<GradeSummary>) {
-        notificationManager.notify(Random.nextInt(Int.MAX_VALUE), getNotificationBuilder()
-            .setContentTitle(context.resources.getQuantityString(R.plurals.grade_new_items_predicted, gradesSummary.size, gradesSummary.size))
-            .setContentText(context.resources.getQuantityString(R.plurals.grade_notify_new_items_predicted, gradesSummary.size, gradesSummary.size))
-            .setStyle(NotificationCompat.InboxStyle().run {
-                setSummaryText(context.resources.getQuantityString(R.plurals.grade_number_item, gradesSummary.size, gradesSummary.size))
-                gradesSummary.forEach { addLine("${it.subject}: ${it.predictedGrade}") }
-                this
-            })
-            .build()
-        )
-    }
+        gradeRepository.getGradesFinalFromDatabase(semester).first()
+            .filter { !it.isFinalGradeNotified }.let {
+                if (it.isNotEmpty()) newGradeNotification.notifyFinal(it, student)

-    private fun notifyFinal(gradesSummary: List<GradeSummary>) {
-        notificationManager.notify(Random.nextInt(Int.MAX_VALUE), getNotificationBuilder()
-            .setContentTitle(context.resources.getQuantityString(R.plurals.grade_new_items_final, gradesSummary.size, gradesSummary.size))
-            .setContentText(context.resources.getQuantityString(R.plurals.grade_notify_new_items_final, gradesSummary.size, gradesSummary.size))
-            .setStyle(NotificationCompat.InboxStyle().run {
-                setSummaryText(context.resources.getQuantityString(R.plurals.grade_number_item, gradesSummary.size, gradesSummary.size))
-                gradesSummary.forEach { addLine("${it.subject}: ${it.finalGrade}") }
-                this
+                gradeRepository.updateGradesSummary(it.onEach { grade ->
+                    grade.isFinalGradeNotified = true
                })
-            .build()
-        )
+            }
    }
 }
--- a/app/src/main/java/io/github/wulkanowy/services/sync/works/HomeworkWork.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/works/HomeworkWork.kt
@ -3,15 +3,38 @@ package io.github.wulkanowy.services.sync.works
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.repositories.HomeworkRepository
+import io.github.wulkanowy.data.repositories.PreferencesRepository
+import io.github.wulkanowy.services.sync.notifications.NewHomeworkNotification
 import io.github.wulkanowy.utils.monday
 import io.github.wulkanowy.utils.sunday
 import io.github.wulkanowy.utils.waitForResult
+import kotlinx.coroutines.flow.first
 import java.time.LocalDate.now
 import javax.inject.Inject

-class HomeworkWork @Inject constructor(private val homeworkRepository: HomeworkRepository) : Work {
+class HomeworkWork @Inject constructor(
+    private val homeworkRepository: HomeworkRepository,
+    private val preferencesRepository: PreferencesRepository,
+    private val newHomeworkNotification: NewHomeworkNotification,
+) : Work {

    override suspend fun doWork(student: Student, semester: Semester) {
-        homeworkRepository.getHomework(student, semester, now().monday, now().sunday, true).waitForResult()
+        homeworkRepository.getHomework(
+            student = student,
+            semester = semester,
+            start = now().monday,
+            end = now().sunday,
+            forceRefresh = true,
+            notify = preferencesRepository.isNotificationsEnable
+        ).waitForResult()
+
+        homeworkRepository.getHomeworkFromDatabase(semester, now().monday, now().sunday).first()
+            .filter { !it.isNotified }.let {
+                if (it.isNotEmpty()) newHomeworkNotification.notify(it, student)
+
+                homeworkRepository.updateHomework(it.onEach { homework ->
+                    homework.isNotified = true
+                })
+            }
    }
 }
--- a/app/src/main/java/io/github/wulkanowy/services/sync/works/LuckyNumberWork.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/sync/works/LuckyNumberWork.kt
@ -1,55 +1,29 @@
 package io.github.wulkanowy.services.sync.works

-import android.app.PendingIntent
-import android.app.PendingIntent.FLAG_UPDATE_CURRENT
-import android.content.Context
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationCompat.DEFAULT_ALL
-import androidx.core.app.NotificationCompat.PRIORITY_HIGH
-import androidx.core.app.NotificationManagerCompat
-import dagger.hilt.android.qualifiers.ApplicationContext
-import io.github.wulkanowy.R
-import io.github.wulkanowy.data.db.entities.LuckyNumber
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.repositories.LuckyNumberRepository
 import io.github.wulkanowy.data.repositories.PreferencesRepository
-import io.github.wulkanowy.services.sync.channels.LuckyNumberChannel
-import io.github.wulkanowy.ui.modules.main.MainActivity
-import io.github.wulkanowy.ui.modules.main.MainView
-import io.github.wulkanowy.utils.getCompatColor
+import io.github.wulkanowy.services.sync.notifications.NewLuckyNumberNotification
 import io.github.wulkanowy.utils.waitForResult
 import javax.inject.Inject
-import kotlin.random.Random

 class LuckyNumberWork @Inject constructor(
-    @ApplicationContext private val context: Context,
-    private val notificationManager: NotificationManagerCompat,
    private val luckyNumberRepository: LuckyNumberRepository,
-    private val preferencesRepository: PreferencesRepository
+    private val preferencesRepository: PreferencesRepository,
+    private val newLuckyNumberNotification: NewLuckyNumberNotification,
 ) : Work {

    override suspend fun doWork(student: Student, semester: Semester) {
-        luckyNumberRepository.getLuckyNumber(student, true, preferencesRepository.isNotificationsEnable).waitForResult()
+        luckyNumberRepository.getLuckyNumber(
+            student = student,
+            forceRefresh = true,
+            notify = preferencesRepository.isNotificationsEnable
+        ).waitForResult()

        luckyNumberRepository.getNotNotifiedLuckyNumber(student)?.let {
-            notify(it)
+            newLuckyNumberNotification.notify(it, student)
            luckyNumberRepository.updateLuckyNumber(it.apply { isNotified = true })
        }
    }
-
-    private fun notify(luckyNumber: LuckyNumber) {
-        notificationManager.notify(Random.nextInt(Int.MAX_VALUE), NotificationCompat.Builder(context, LuckyNumberChannel.CHANNEL_ID)
-            .setContentTitle(context.getString(R.string.lucky_number_notify_new_item_title))
-            .setContentText(context.getString(R.string.lucky_number_notify_new_item, luckyNumber.luckyNumber))
-            .setSmallIcon(R.drawable.ic_stat_luckynumber)
-            .setAutoCancel(true)
-            .setDefaults(DEFAULT_ALL)
-            .setPriority(PRIORITY_HIGH)
-            .setColor(context.getCompatColor(R.color.colorPrimary))
-            .setContentIntent(
-                PendingIntent.getActivity(context, MainView.Section.MESSAGE.id,
-                    MainActivity.getStartIntent(context, MainView.Section.LUCKY_NUMBER, true), FLAG_UPDATE_CURRENT))
-            .build())
-    }
 }
--- a/Show More
+++ b/Show More