Merge branch 'hotfix/1.9.2'

* Use user agent template from firebase remote config

* Improve base class usage, activation refactor

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2022 Wulkanowy
+   Copyright 2023 Wulkanowy
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

app/build.gradle

@@ -16,15 +16,15 @@ apply from: 'hooks.gradle'
 
 android {
     namespace 'io.github.wulkanowy'
-    compileSdkVersion 32
+    compileSdkVersion 33
 
     defaultConfig {
         applicationId "io.github.wulkanowy"
         testApplicationId "io.github.tests.wulkanowy"
         minSdkVersion 21
-        targetSdkVersion 32
-        versionCode 118
-        versionName "1.8.3"
+        targetSdkVersion 33
+        versionCode 121
+        versionName "1.9.2"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
         resValue "string", "app_name", "Wulkanowy"
@@ -161,8 +161,8 @@ play {
     defaultToAppBundles = false
     track = 'production'
     releaseStatus = com.github.triplet.gradle.androidpublisher.ReleaseStatus.IN_PROGRESS
-    userFraction = 0.10d
-    updatePriority = 5
+    userFraction = 0.50d
+    updatePriority = 2
     enabled.set(false)
 }
 
@@ -181,23 +181,23 @@ ext {
     android_hilt = "1.0.0"
     room = "2.4.3"
     chucker = "3.5.2"
-    mockk = "1.13.2"
+    mockk = "1.13.3"
     coroutines = "1.6.4"
 }
 
 dependencies {
-    implementation "io.github.wulkanowy:sdk:1.8.3"
+    implementation "io.github.wulkanowy:sdk:1.9.2"
 
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.8'
 
     implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.1"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines"
 
-    implementation "androidx.core:core-ktx:1.8.0"
+    implementation "androidx.core:core-ktx:1.9.0"
     implementation 'androidx.core:core-splashscreen:1.0.0'
-    implementation "androidx.activity:activity-ktx:1.5.1"
+    implementation "androidx.activity:activity-ktx:1.6.1"
     implementation "androidx.appcompat:appcompat:1.5.1"
-    implementation "androidx.fragment:fragment-ktx:1.5.4"
+    implementation "androidx.fragment:fragment-ktx:1.5.5"
     implementation "androidx.annotation:annotation:1.5.0"
 
     implementation "androidx.preference:preference-ktx:1.2.0"
@@ -237,20 +237,22 @@ dependencies {
     implementation 'com.github.bastienpaulfr:Treessence:1.0.5'
     implementation "com.mikepenz:aboutlibraries-core:$about_libraries"
     implementation "io.coil-kt:coil:2.2.2"
-    implementation "io.github.wulkanowy:AppKillerManager:3.0.0"
+    implementation "io.github.wulkanowy:AppKillerManager:3.0.1"
     implementation 'me.xdrop:fuzzywuzzy:1.4.0'
     implementation 'com.fredporciuncula:flow-preferences:1.8.0'
+    implementation 'org.apache.commons:commons-text:1.10.0'
 
-    playImplementation platform('com.google.firebase:firebase-bom:31.0.3')
+    playImplementation platform('com.google.firebase:firebase-bom:31.1.1')
     playImplementation 'com.google.firebase:firebase-analytics-ktx'
     playImplementation 'com.google.firebase:firebase-messaging:'
     playImplementation 'com.google.firebase:firebase-crashlytics:'
+    playImplementation 'com.google.firebase:firebase-config-ktx'
     playImplementation 'com.google.android.play:core:1.10.3'
     playImplementation 'com.google.android.play:core-ktx:1.8.1'
-    playImplementation 'com.google.android.gms:play-services-ads:21.3.0'
+    playImplementation 'com.google.android.gms:play-services-ads:21.4.0'
 
-    hmsImplementation 'com.huawei.hms:hianalytics:6.8.0.300'
-    hmsImplementation 'com.huawei.agconnect:agconnect-crash:1.7.3.300'
+    hmsImplementation 'com.huawei.hms:hianalytics:6.9.0.301'
+    hmsImplementation 'com.huawei.agconnect:agconnect-crash:1.7.3.302'
 
     releaseImplementation "com.github.ChuckerTeam.Chucker:library-no-op:$chucker"
 
@@ -263,7 +265,7 @@ dependencies {
     testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutines"
     testImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
 
-    testImplementation 'org.robolectric:robolectric:4.9'
+    testImplementation 'org.robolectric:robolectric:4.9.2'
     testImplementation "androidx.test:runner:1.5.1"
     testImplementation "androidx.test.ext:junit:1.1.4"
     testImplementation "androidx.test:core:1.5.0"
@@ -271,9 +273,9 @@ dependencies {
     testImplementation "com.google.dagger:hilt-android-testing:$hilt_version"
     kaptTest "com.google.dagger:hilt-android-compiler:$hilt_version"
 
-    androidTestImplementation "androidx.test:core:1.4.0"
-    androidTestImplementation "androidx.test:runner:1.4.0"
-    androidTestImplementation "androidx.test.ext:junit:1.1.3"
+    androidTestImplementation "androidx.test:core:1.5.0"
+    androidTestImplementation "androidx.test:runner:1.5.1"
+    androidTestImplementation "androidx.test.ext:junit:1.1.4"
     androidTestImplementation "io.mockk:mockk-android:$mockk"
     androidTestImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
 }

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

@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/colorPrimary" />
     <foreground android:drawable="@drawable/ic_launcher_foreground_dev" />
-</adaptive-icon>
+    <monochrome android:drawable="@drawable/ic_launcher_foreground_dev_mono" />
+</adaptive-icon>

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

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/colorPrimary" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground_dev" />
-</adaptive-icon>

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

@@ -0,0 +1,7 @@
+package io.github.wulkanowy.utils
+
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class RemoteConfigHelper @Inject constructor() : BaseRemoteConfigHelper()

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

@@ -0,0 +1,7 @@
+package io.github.wulkanowy.utils
+
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class RemoteConfigHelper @Inject constructor() : BaseRemoteConfigHelper()

app/src/main/AndroidManifest.xml

@@ -8,7 +8,8 @@
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.VIBRATE" />
-    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/>
+    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 
     <queries>
         <intent>
@@ -36,13 +37,14 @@
     <application
         android:name=".WulkanowyApp"
         android:allowBackup="false"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:enableOnBackInvokedCallback="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:networkSecurityConfig="@xml/network_security_config"
-        android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="false"
         android:theme="@style/WulkanowyTheme"
-        tools:ignore="GoogleAppIndexingWarning,UnusedAttribute">
+        tools:ignore="DataExtractionRules,UnusedAttribute">
         <activity
             android:name=".ui.modules.splash.SplashActivity"
             android:exported="true"

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

@@ -34,11 +34,15 @@ class WulkanowyApp : Application(), Configuration.Provider {
     @Inject
     lateinit var adsHelper: AdsHelper
 
+    @Inject
+    lateinit var remoteConfigHelper: RemoteConfigHelper
+
     override fun onCreate() {
         super.onCreate()
         initializeAppLanguage()
         themeManager.applyDefaultTheme()
         adsHelper.initialize()
+        remoteConfigHelper.initialize()
         initLogging()
     }
 

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

@@ -19,6 +19,7 @@ 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 io.github.wulkanowy.utils.RemoteConfigHelper
 import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.json.Json
 import okhttp3.MediaType.Companion.toMediaType
@@ -36,10 +37,11 @@ internal class DataModule {
 
     @Singleton
     @Provides
-    fun provideSdk(chuckerInterceptor: ChuckerInterceptor) =
+    fun provideSdk(chuckerInterceptor: ChuckerInterceptor, remoteConfig: RemoteConfigHelper) =
         Sdk().apply {
             androidVersion = android.os.Build.VERSION.RELEASE
             buildTag = android.os.Build.MODEL
+            userAgentTemplate = remoteConfig.userAgentTemplate
             setSimpleHttpLogger { Timber.d(it) }
 
             // for debug only

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

@@ -48,6 +48,7 @@ import javax.inject.Singleton
         AutoMigration(from = 46, to = 47),
         AutoMigration(from = 47, to = 48),
         AutoMigration(from = 51, to = 52),
+        AutoMigration(from = 54, to = 55, spec = Migration55::class),
     ],
     version = AppDatabase.VERSION_SCHEMA,
     exportSchema = true
@@ -56,7 +57,7 @@ import javax.inject.Singleton
 abstract class AppDatabase : RoomDatabase() {
 
     companion object {
-        const val VERSION_SCHEMA = 54
+        const val VERSION_SCHEMA = 55
 
         fun getMigrations(sharedPrefProvider: SharedPrefProvider, appInfo: AppInfo) = arrayOf(
             Migration2(),

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

@@ -2,16 +2,14 @@ package io.github.wulkanowy.data.db.entities
 
 import androidx.room.ColumnInfo
 import androidx.room.Entity
-import androidx.room.PrimaryKey
 import java.io.Serializable
 
-@Entity(tableName = "MessageAttachments")
+@Entity(
+    tableName = "MessageAttachments",
+    primaryKeys = ["message_global_key", "url", "filename"],
+)
 data class MessageAttachment(
 
-    @PrimaryKey
-    @ColumnInfo(name = "real_id")
-    val realId: Int,
-
     @ColumnInfo(name = "message_global_key")
     val messageGlobalKey: String,
 

app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration55.kt

@@ -0,0 +1,17 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.DeleteColumn
+import androidx.room.migration.AutoMigrationSpec
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+@DeleteColumn(
+    tableName = "MessageAttachments",
+    columnName = "real_id",
+)
+class Migration55 : AutoMigrationSpec {
+
+    override fun onPostMigrate(db: SupportSQLiteDatabase) {
+        db.execSQL("DELETE FROM Messages")
+        db.execSQL("DELETE FROM MessageAttachments")
+    }
+}

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

@@ -40,7 +40,6 @@ fun List<SdkMessage>.mapToEntities(
 fun List<SdkMessageAttachment>.mapToEntities(messageGlobalKey: String) = map {
     MessageAttachment(
         messageGlobalKey = messageGlobalKey,
-        realId = it.url.hashCode(),
         url = it.url,
         filename = it.filename
     )

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

@@ -0,0 +1,87 @@
+package io.github.wulkanowy.data.mappers
+
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.*
+import io.github.wulkanowy.sdk.Sdk
+import io.github.wulkanowy.sdk.mapper.mapSemesters
+import java.time.Instant
+import io.github.wulkanowy.sdk.scrapper.register.RegisterStudent as SdkRegisterStudent
+import io.github.wulkanowy.sdk.scrapper.register.RegisterUser as SdkRegisterUser
+
+fun SdkRegisterUser.mapToPojo(password: String) = RegisterUser(
+    email = email,
+    login = login,
+    password = password,
+    baseUrl = baseUrl,
+    loginType = loginType,
+    symbols = symbols.map { registerSymbol ->
+        RegisterSymbol(
+            symbol = registerSymbol.symbol,
+            error = registerSymbol.error,
+            userName = registerSymbol.userName,
+            schools = registerSymbol.schools.map {
+                RegisterUnit(
+                    userLoginId = it.userLoginId,
+                    schoolId = it.schoolId,
+                    schoolName = it.schoolName,
+                    schoolShortName = it.schoolShortName,
+                    parentIds = it.parentIds,
+                    studentIds = it.studentIds,
+                    employeeIds = it.employeeIds,
+                    error = it.error,
+                    students = it.subjects
+                        .filterIsInstance<SdkRegisterStudent>()
+                        .map { registerSubject ->
+                            RegisterStudent(
+                                studentId = registerSubject.studentId,
+                                studentName = registerSubject.studentName,
+                                studentSecondName = registerSubject.studentSecondName,
+                                studentSurname = registerSubject.studentSurname,
+                                className = registerSubject.className,
+                                classId = registerSubject.classId,
+                                isParent = registerSubject.isParent,
+                                semesters = registerSubject.semesters
+                                    .mapSemesters()
+                                    .mapToEntities(registerSubject.studentId),
+                            )
+                        },
+                )
+            }
+        )
+    }
+)
+
+fun RegisterStudent.mapToStudentWithSemesters(
+    user: RegisterUser,
+    symbol: RegisterSymbol,
+    unit: RegisterUnit,
+    colors: List<Long>,
+): StudentWithSemesters = StudentWithSemesters(
+    semesters = semesters,
+    student = Student(
+        email = user.login, // for compatibility
+        userName = symbol.userName,
+        userLoginId = unit.userLoginId,
+        isParent = isParent,
+        className = className,
+        classId = classId,
+        studentId = studentId,
+        symbol = symbol.symbol,
+        loginType = user.loginType.name,
+        schoolName = unit.schoolName,
+        schoolShortName = unit.schoolShortName,
+        schoolSymbol = unit.schoolId,
+        studentName = "$studentName $studentSurname",
+        loginMode = Sdk.Mode.SCRAPPER.name,
+        scrapperBaseUrl = user.baseUrl,
+        mobileBaseUrl = "",
+        certificateKey = "",
+        privateKey = "",
+        password = user.password,
+        isCurrent = false,
+        registrationDate = Instant.now(),
+    ).apply {
+        avatarColor = colors.random()
+    },
+)

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

@@ -0,0 +1,43 @@
+package io.github.wulkanowy.data.pojos
+
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.sdk.scrapper.Scrapper
+
+data class RegisterUser(
+    val email: String,
+    val password: String,
+    val login: String, // may be the same as email
+    val baseUrl: String,
+    val loginType: Scrapper.LoginType,
+    val symbols: List<RegisterSymbol>,
+) : java.io.Serializable
+
+data class RegisterSymbol(
+    val symbol: String,
+    val error: Throwable?,
+    val userName: String,
+    val schools: List<RegisterUnit>,
+) : java.io.Serializable
+
+data class RegisterUnit(
+    val userLoginId: Int,
+    val schoolId: String,
+    val schoolName: String,
+    val schoolShortName: String,
+    val parentIds: List<Int>,
+    val studentIds: List<Int>,
+    val employeeIds: List<Int>,
+    val error: Throwable?,
+    val students: List<RegisterStudent>,
+) : java.io.Serializable
+
+data class RegisterStudent(
+    val studentId: Int,
+    val studentName: String,
+    val studentSecondName: String,
+    val studentSurname: String,
+    val className: String,
+    val classId: Int,
+    val isParent: Boolean,
+    val semesters: List<Semester>,
+) : java.io.Serializable

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

@@ -103,7 +103,10 @@ class MessageRepository @Inject constructor(
             messagesDb.loadMessageWithAttachment(message.messageGlobalKey)
         },
         fetch = {
-            sdk.init(student).getMessageDetails(it!!.message.messageGlobalKey, markAsRead)
+            sdk.init(student).getMessageDetails(
+                messageKey = it!!.message.messageGlobalKey,
+                markAsRead = message.unread && markAsRead,
+            )
         },
         saveFetchResult = { old, new ->
             checkNotNull(old) { "Fetched message no longer exist!" }
@@ -178,7 +181,7 @@ class MessageRepository @Inject constructor(
         ).first()
     }
 
-    suspend fun deleteMessage(student: Student, mailbox: Mailbox, message: Message) {
+    suspend fun deleteMessage(student: Student, mailbox: Mailbox?, message: Message) {
         deleteMessages(student, mailbox, listOf(message))
     }
 

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

@@ -11,6 +11,8 @@ import io.github.wulkanowy.data.db.entities.StudentNickAndAvatar
 import io.github.wulkanowy.data.db.entities.StudentWithSemesters
 import io.github.wulkanowy.data.exceptions.NoCurrentStudentException
 import io.github.wulkanowy.data.mappers.mapToEntities
+import io.github.wulkanowy.data.mappers.mapToPojo
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.DispatchersProvider
@@ -52,6 +54,14 @@ class StudentRepository @Inject constructor(
         sdk.getStudentsFromScrapper(email, password, scrapperBaseUrl, symbol)
             .mapToEntities(password, appInfo.defaultColorsForAvatar)
 
+    suspend fun getUserSubjectsFromScrapper(
+        email: String,
+        password: String,
+        scrapperBaseUrl: String,
+        symbol: String
+    ): RegisterUser = sdk.getUserSubjectsFromScrapper(email, password, scrapperBaseUrl, symbol)
+        .mapToPojo(password)
+
     suspend fun getStudentsHybrid(
         email: String,
         password: String,

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

@@ -37,7 +37,7 @@ class ErrorDialog : DialogFragment() {
     }
 
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        val error = requireArguments().getSerializable(ARGUMENT_KEY) as Throwable
+        val error = requireArguments().serializable<Throwable>(ARGUMENT_KEY)
 
         val binding = DialogErrorBinding.inflate(layoutInflater)
         binding.bindErrorDetails(error)

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

@@ -1,6 +1,9 @@
 package io.github.wulkanowy.ui.base
 
+import android.content.pm.PackageInfo
+import android.content.pm.PackageManager
 import android.content.pm.PackageManager.GET_ACTIVITIES
+import android.os.Build
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
@@ -41,9 +44,8 @@ class ThemeManager @Inject constructor(private val preferencesRepository: Prefer
         )
     }
 
-    private fun isThemeApplicable(activity: AppCompatActivity) =
-        activity.packageManager
-            .getPackageInfo(activity.packageName, GET_ACTIVITIES)
+    private fun isThemeApplicable(activity: AppCompatActivity): Boolean =
+        getPackageInfo(activity)
             .activities
             .singleOrNull { it.name == activity::class.java.canonicalName }
             ?.theme
@@ -52,4 +54,14 @@ class ThemeManager @Inject constructor(private val preferencesRepository: Prefer
                     || it == R.style.WulkanowyTheme_Login || it == R.style.WulkanowyTheme_Login_Black
                     || it == R.style.WulkanowyTheme_MessageSend || it == R.style.WulkanowyTheme_MessageSend_Black
             }
+
+    @Suppress("DEPRECATION")
+    private fun getPackageInfo(activity: AppCompatActivity): PackageInfo {
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            activity.packageManager.getPackageInfo(
+                activity.packageName,
+                PackageManager.PackageInfoFlags.of(GET_ACTIVITIES.toLong())
+            )
+        } else activity.packageManager.getPackageInfo(activity.packageName, GET_ACTIVITIES)
+    }
 }

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

@@ -34,6 +34,7 @@ class AccountFragment : BaseFragment<FragmentAccountBinding>(R.layout.fragment_a
 
     override val titleStringId = R.string.account_title
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

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

@@ -6,6 +6,7 @@ import android.view.MenuInflater
 import android.view.MenuItem
 import android.view.View
 import androidx.appcompat.app.AlertDialog
+import androidx.core.os.bundleOf
 import androidx.core.view.get
 import androidx.core.view.isVisible
 import dagger.hilt.android.AndroidEntryPoint
@@ -21,6 +22,7 @@ import io.github.wulkanowy.ui.modules.studentinfo.StudentInfoFragment
 import io.github.wulkanowy.ui.modules.studentinfo.StudentInfoView
 import io.github.wulkanowy.utils.createNameInitialsDrawable
 import io.github.wulkanowy.utils.nickOrName
+import io.github.wulkanowy.utils.serializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -37,12 +39,12 @@ class AccountDetailsFragment :
 
         private const val ARGUMENT_KEY = "Data"
 
-        fun newInstance(student: Student) =
-            AccountDetailsFragment().apply {
-                arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, student) }
-            }
+        fun newInstance(student: Student) = AccountDetailsFragment().apply {
+            arguments = bundleOf(ARGUMENT_KEY to student)
+        }
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)
@@ -51,7 +53,7 @@ class AccountDetailsFragment :
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         binding = FragmentAccountDetailsBinding.bind(view)
-        presenter.onAttachView(this, requireArguments()[ARGUMENT_KEY] as Student)
+        presenter.onAttachView(this, requireArguments().serializable(ARGUMENT_KEY))
     }
 
     override fun initView() {

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

@@ -4,11 +4,13 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.GridLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.databinding.DialogAccountEditBinding
 import io.github.wulkanowy.ui.base.BaseDialogFragment
+import io.github.wulkanowy.utils.serializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -24,12 +26,9 @@ class AccountEditDialog : BaseDialogFragment<DialogAccountEditBinding>(), Accoun
 
         private const val ARGUMENT_KEY = "student_with_semesters"
 
-        fun newInstance(student: Student) =
-            AccountEditDialog().apply {
-                arguments = Bundle().apply {
-                    putSerializable(ARGUMENT_KEY, student)
-                }
-            }
+        fun newInstance(student: Student) = AccountEditDialog().apply {
+            arguments = bundleOf(ARGUMENT_KEY to student)
+        }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -45,7 +44,7 @@ class AccountEditDialog : BaseDialogFragment<DialogAccountEditBinding>(), Accoun
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        presenter.onAttachView(this, requireArguments()[ARGUMENT_KEY] as Student)
+        presenter.onAttachView(this, requireArguments().serializable(ARGUMENT_KEY))
     }
 
     override fun initView() {

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

@@ -4,6 +4,7 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.data.db.entities.StudentWithSemesters
@@ -13,6 +14,7 @@ import io.github.wulkanowy.ui.modules.account.AccountAdapter
 import io.github.wulkanowy.ui.modules.account.AccountFragment
 import io.github.wulkanowy.ui.modules.account.AccountItem
 import io.github.wulkanowy.ui.modules.main.MainActivity
+import io.github.wulkanowy.utils.serializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -30,9 +32,7 @@ class AccountQuickDialog : BaseDialogFragment<DialogAccountQuickBinding>(), Acco
 
         fun newInstance(studentsWithSemesters: List<StudentWithSemesters>) =
             AccountQuickDialog().apply {
-                arguments = Bundle().apply {
-                    putSerializable(STUDENTS_ARGUMENT_KEY, studentsWithSemesters.toTypedArray())
-                }
+                arguments = bundleOf(STUDENTS_ARGUMENT_KEY to studentsWithSemesters.toTypedArray())
             }
     }
 
@@ -49,8 +49,8 @@ class AccountQuickDialog : BaseDialogFragment<DialogAccountQuickBinding>(), Acco
 
     @Suppress("UNCHECKED_CAST")
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        val studentsWithSemesters =
-            (requireArguments()[STUDENTS_ARGUMENT_KEY] as Array<StudentWithSemesters>).toList()
+        val studentsWithSemesters = requireArguments()
+            .serializable<Array<StudentWithSemesters>>(STUDENTS_ARGUMENT_KEY).toList()
 
         presenter.onAttachView(this, studentsWithSemesters)
     }

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

@@ -4,11 +4,13 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.data.db.entities.Attendance
 import io.github.wulkanowy.databinding.DialogAttendanceBinding
 import io.github.wulkanowy.utils.descriptionRes
 import io.github.wulkanowy.utils.lifecycleAwareVariable
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.toFormattedString
 
 class AttendanceDialog : DialogFragment() {
@@ -22,16 +24,14 @@ class AttendanceDialog : DialogFragment() {
         private const val ARGUMENT_KEY = "Item"
 
         fun newInstance(exam: Attendance) = AttendanceDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, exam) }
+            arguments = bundleOf(ARGUMENT_KEY to exam)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            attendance = getSerializable(ARGUMENT_KEY) as Attendance
-        }
+        attendance = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(

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

@@ -84,6 +84,7 @@ class AttendanceFragment : BaseFragment<FragmentAttendanceBinding>(R.layout.frag
         }
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

app/src/main/java/io/github/wulkanowy/ui/modules/conference/ConferenceDialog.kt

@@ -4,11 +4,13 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.core.view.isVisible
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.data.db.entities.Conference
 import io.github.wulkanowy.databinding.DialogConferenceBinding
 import io.github.wulkanowy.utils.lifecycleAwareVariable
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.toFormattedString
 
 class ConferenceDialog : DialogFragment() {
@@ -22,16 +24,14 @@ class ConferenceDialog : DialogFragment() {
         private const val ARGUMENT_KEY = "item"
 
         fun newInstance(conference: Conference) = ConferenceDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, conference) }
+            arguments = bundleOf(ARGUMENT_KEY to conference)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.let {
-            conference = it.getSerializable(ARGUMENT_KEY) as Conference
-        }
+        conference = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(
@@ -57,4 +57,4 @@ class ConferenceDialog : DialogFragment() {
             conferenceDialogAgendaTitle.isVisible = conference.agenda.isNotBlank()
         }
     }
-}
+}

app/src/main/java/io/github/wulkanowy/ui/modules/dashboard/DashboardFragment.kt

@@ -61,6 +61,7 @@ class DashboardFragment : BaseFragment<FragmentDashboardBinding>(R.layout.fragme
         fun newInstance() = DashboardFragment()
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

app/src/main/java/io/github/wulkanowy/ui/modules/debug/logviewer/LogViewerFragment.kt

@@ -1,9 +1,7 @@
 package io.github.wulkanowy.ui.modules.debug.logviewer
 
 import android.content.Intent
-import android.content.Intent.EXTRA_EMAIL
-import android.content.Intent.EXTRA_STREAM
-import android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION
+import android.content.Intent.*
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuInflater
@@ -36,6 +34,7 @@ class LogViewerFragment : BaseFragment<FragmentLogviewerBinding>(R.layout.fragme
         fun newInstance() = LogViewerFragment()
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

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

@@ -4,12 +4,14 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Exam
 import io.github.wulkanowy.databinding.DialogExamBinding
 import io.github.wulkanowy.utils.lifecycleAwareVariable
 import io.github.wulkanowy.utils.openCalendarEventAdd
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.toFormattedString
 import java.time.LocalTime
 
@@ -24,16 +26,14 @@ class ExamDialog : DialogFragment() {
         private const val ARGUMENT_KEY = "Item"
 
         fun newInstance(exam: Exam) = ExamDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, exam) }
+            arguments = bundleOf(ARGUMENT_KEY to exam)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            exam = getSerializable(ARGUMENT_KEY) as Exam
-        }
+        exam = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(

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

@@ -51,6 +51,7 @@ class GradeFragment : BaseFragment<FragmentGradeBinding>(R.layout.fragment_grade
 
     override val currentPageIndex get() = binding.gradeViewPager.currentItem
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

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

@@ -5,6 +5,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.View.GONE
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Grade
@@ -27,22 +28,19 @@ class GradeDetailsDialog : DialogFragment() {
 
         private const val COLOR_THEME_KEY = "Theme"
 
-        fun newInstance(grade: Grade, colorTheme: GradeColorTheme) =
-            GradeDetailsDialog().apply {
-                arguments = Bundle().apply {
-                    putSerializable(ARGUMENT_KEY, grade)
-                    putSerializable(COLOR_THEME_KEY, colorTheme)
-                }
-            }
+        fun newInstance(grade: Grade, colorTheme: GradeColorTheme) = GradeDetailsDialog().apply {
+            arguments = bundleOf(
+                ARGUMENT_KEY to grade,
+                COLOR_THEME_KEY to colorTheme
+            )
+        }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            grade = getSerializable(ARGUMENT_KEY) as Grade
-            gradeColorTheme = getSerializable(COLOR_THEME_KEY) as GradeColorTheme
-        }
+        grade = requireArguments().serializable(ARGUMENT_KEY)
+        gradeColorTheme = requireArguments().serializable(COLOR_THEME_KEY)
     }
 
     override fun onCreateView(

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

@@ -5,9 +5,7 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import android.view.View
-import android.view.View.GONE
-import android.view.View.INVISIBLE
-import android.view.View.VISIBLE
+import android.view.View.*
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
@@ -42,6 +40,7 @@ class GradeDetailsFragment :
     override val isViewEmpty
         get() = gradeDetailsAdapter.itemCount == 0
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

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

@@ -15,6 +15,7 @@ import io.github.wulkanowy.ui.modules.grade.GradeFragment
 import io.github.wulkanowy.ui.modules.grade.GradeView
 import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.getThemeAttrColor
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.setOnItemSelectedListener
 import javax.inject.Inject
 
@@ -48,8 +49,8 @@ class GradeStatisticsFragment :
         messageContainer = binding.gradeStatisticsRecycler
         presenter.onAttachView(
             view = this,
-            type = savedInstanceState?.getSerializable(SAVED_CHART_TYPE) as? GradeStatisticsItem.DataType,
-            subjectName = savedInstanceState?.getSerializable(SAVED_SUBJECT_NAME) as? String,
+            type = savedInstanceState?.serializable(SAVED_CHART_TYPE),
+            subjectName = savedInstanceState?.serializable(SAVED_SUBJECT_NAME),
         )
     }
 

app/src/main/java/io/github/wulkanowy/ui/modules/homework/details/HomeworkDetailsDialog.kt

@@ -7,6 +7,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.view.ViewGroup.LayoutParams.MATCH_PARENT
 import android.view.ViewGroup.LayoutParams.WRAP_CONTENT
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
@@ -14,6 +15,7 @@ import io.github.wulkanowy.data.db.entities.Homework
 import io.github.wulkanowy.databinding.DialogHomeworkBinding
 import io.github.wulkanowy.ui.base.BaseDialogFragment
 import io.github.wulkanowy.utils.openInternetBrowser
+import io.github.wulkanowy.utils.serializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -35,16 +37,14 @@ class HomeworkDetailsDialog : BaseDialogFragment<DialogHomeworkBinding>(), Homew
         private const val ARGUMENT_KEY = "Item"
 
         fun newInstance(homework: Homework) = HomeworkDetailsDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, homework) }
+            arguments = bundleOf(ARGUMENT_KEY to homework)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            homework = getSerializable(ARGUMENT_KEY) as Homework
-        }
+        homework = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(

app/src/main/java/io/github/wulkanowy/ui/modules/login/LoginActivity.kt

@@ -2,13 +2,17 @@ package io.github.wulkanowy.ui.modules.login
 
 import android.content.Context
 import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build.VERSION_CODES.TIRAMISU
 import android.os.Bundle
 import android.view.MenuItem
+import androidx.core.content.ContextCompat
 import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentManager.POP_BACK_STACK_INCLUSIVE
 import androidx.fragment.app.commit
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.databinding.ActivityLoginBinding
 import io.github.wulkanowy.ui.base.BaseActivity
 import io.github.wulkanowy.ui.modules.login.advanced.LoginAdvancedFragment
@@ -16,6 +20,9 @@ import io.github.wulkanowy.ui.modules.login.form.LoginFormFragment
 import io.github.wulkanowy.ui.modules.login.recover.LoginRecoverFragment
 import io.github.wulkanowy.ui.modules.login.studentselect.LoginStudentSelectFragment
 import io.github.wulkanowy.ui.modules.login.symbol.LoginSymbolFragment
+import io.github.wulkanowy.ui.modules.main.MainActivity
+import io.github.wulkanowy.ui.modules.notifications.NotificationsFragment
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.UpdateHelper
 import javax.inject.Inject
 
@@ -28,6 +35,9 @@ class LoginActivity : BaseActivity<LoginPresenter, ActivityLoginBinding>(), Logi
     @Inject
     lateinit var updateHelper: UpdateHelper
 
+    @Inject
+    lateinit var appInfo: AppInfo
+
     companion object {
         fun getStartIntent(context: Context) = Intent(context, LoginActivity::class.java)
     }
@@ -55,7 +65,7 @@ class LoginActivity : BaseActivity<LoginPresenter, ActivityLoginBinding>(), Logi
     }
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        if (item.itemId == android.R.id.home) onBackPressed()
+        if (item.itemId == android.R.id.home) onBackPressedDispatcher.onBackPressed()
         return true
     }
 
@@ -67,8 +77,24 @@ class LoginActivity : BaseActivity<LoginPresenter, ActivityLoginBinding>(), Logi
         openFragment(LoginSymbolFragment.newInstance(loginData))
     }
 
-    fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>) {
-        openFragment(LoginStudentSelectFragment.newInstance(studentsWithSemesters))
+    fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser) {
+        openFragment(LoginStudentSelectFragment.newInstance(loginData, registerUser))
+    }
+
+    fun navigateToNotifications() {
+        val isNotificationsPermissionRequired = appInfo.systemVersion >= TIRAMISU
+        val isPermissionGranted = ContextCompat.checkSelfPermission(
+            this, "android.permission.POST_NOTIFICATIONS"
+        ) == PackageManager.PERMISSION_GRANTED
+
+        if (isNotificationsPermissionRequired && !isPermissionGranted) {
+            openFragment(NotificationsFragment.newInstance(), clearBackStack = true)
+        } else navigateToFinish()
+    }
+
+    fun navigateToFinish() {
+        startActivity(MainActivity.getStartIntent(this))
+        finish()
     }
 
     fun onAdvancedLoginClick() {
@@ -80,6 +106,8 @@ class LoginActivity : BaseActivity<LoginPresenter, ActivityLoginBinding>(), Logi
     }
 
     private fun openFragment(fragment: Fragment, clearBackStack: Boolean = false) {
+        supportFragmentManager.popBackStack(fragment::class.java.name, POP_BACK_STACK_INCLUSIVE)
+
         supportFragmentManager.commit {
             replace(R.id.loginContainer, fragment)
             setReorderingAllowed(true)

app/src/main/java/io/github/wulkanowy/ui/modules/login/LoginData.kt

@@ -6,4 +6,5 @@ data class LoginData(
     val login: String,
     val password: String,
     val baseUrl: String,
+    val symbol: String?,
 ) : Serializable

app/src/main/java/io/github/wulkanowy/ui/modules/login/advanced/LoginAdvancedFragment.kt

@@ -8,7 +8,7 @@ import android.widget.ArrayAdapter
 import androidx.core.widget.doOnTextChanged
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.databinding.FragmentLoginAdvancedBinding
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.ui.base.BaseFragment
@@ -327,8 +327,8 @@ class LoginAdvancedFragment :
         (activity as? LoginActivity)?.navigateToSymbolFragment(loginData)
     }
 
-    override fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>) {
-        (activity as? LoginActivity)?.navigateToStudentSelect(studentsWithSemesters)
+    override fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser) {
+        (activity as? LoginActivity)?.navigateToStudentSelect(loginData, registerUser)
     }
 
     override fun onResume() {

app/src/main/java/io/github/wulkanowy/ui/modules/login/advanced/LoginAdvancedPresenter.kt

@@ -4,9 +4,15 @@ import io.github.wulkanowy.data.Resource
 import io.github.wulkanowy.data.db.entities.StudentWithSemesters
 import io.github.wulkanowy.data.logResourceStatus
 import io.github.wulkanowy.data.onResourceNotLoading
+import io.github.wulkanowy.data.pojos.RegisterStudent
+import io.github.wulkanowy.data.pojos.RegisterSymbol
+import io.github.wulkanowy.data.pojos.RegisterUnit
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.data.repositories.StudentRepository
 import io.github.wulkanowy.data.resourceFlow
 import io.github.wulkanowy.sdk.Sdk
+import io.github.wulkanowy.sdk.scrapper.Scrapper
+import io.github.wulkanowy.sdk.scrapper.getNormalizedSymbol
 import io.github.wulkanowy.ui.base.BasePresenter
 import io.github.wulkanowy.ui.modules.login.LoginData
 import io.github.wulkanowy.ui.modules.login.LoginErrorHandler
@@ -142,19 +148,23 @@ class LoginAdvancedPresenter @Inject constructor(
                     is Resource.Success -> {
                         analytics.logEvent(
                             "registration_form",
-                        "success" to true,
-                        "students" to it.data.size,
-                        "error" to "No error"
-                    )
-                    val loginData = LoginData(
-                        login = view?.formUsernameValue.orEmpty().trim(),
-                        password = view?.formPassValue.orEmpty().trim(),
-                        baseUrl = view?.formHostValue.orEmpty().trim()
-                    )
-                    when (it.data.size) {
-                        0 -> view?.navigateToSymbol(loginData)
-                        else -> view?.navigateToStudentSelect(it.data)
-                    }
+                            "success" to true,
+                            "students" to it.data.size,
+                            "error" to "No error"
+                        )
+                        val loginData = LoginData(
+                            login = view?.formUsernameValue.orEmpty().trim(),
+                            password = view?.formPassValue.orEmpty().trim(),
+                            baseUrl = view?.formHostValue.orEmpty().trim(),
+                            symbol = view?.formSymbolValue.orEmpty().trim().getNormalizedSymbol(),
+                        )
+                        when (it.data.size) {
+                            0 -> view?.navigateToSymbol(loginData)
+                            else -> view?.navigateToStudentSelect(
+                                loginData = loginData,
+                                registerUser = it.data.toRegisterUser(loginData),
+                            )
+                        }
                     }
                     is Resource.Error -> {
                         analytics.logEvent(
@@ -173,6 +183,58 @@ class LoginAdvancedPresenter @Inject constructor(
             }.launch("login")
     }
 
+    private fun List<StudentWithSemesters>.toRegisterUser(loginData: LoginData) = RegisterUser(
+        email = loginData.login,
+        password = loginData.password,
+        login = loginData.login,
+        baseUrl = loginData.baseUrl,
+        loginType = firstOrNull()?.student?.loginType?.let(
+            Scrapper.LoginType::valueOf
+        ) ?: Scrapper.LoginType.AUTO,
+        symbols = this
+            .groupBy { students -> students.student.symbol }
+            .map { (symbol, students) ->
+                RegisterSymbol(
+                    symbol = symbol,
+                    error = null,
+                    userName = "",
+                    schools = students
+                        .groupBy { student ->
+                            Triple(
+                                first = student.student.schoolSymbol,
+                                second = student.student.userLoginId,
+                                third = student.student.schoolShortName
+                            )
+                        }
+                        .map { (groupKey, students) ->
+                            val (schoolId, loginId, schoolName) = groupKey
+                            RegisterUnit(
+                                students = students.map {
+                                    RegisterStudent(
+                                        studentId = it.student.studentId,
+                                        studentName = it.student.studentName,
+                                        studentSecondName = it.student.studentName,
+                                        studentSurname = it.student.studentName,
+                                        className = it.student.className,
+                                        classId = it.student.classId,
+                                        isParent = it.student.isParent,
+                                        semesters = it.semesters,
+                                    )
+                                },
+                                userLoginId = loginId,
+                                schoolId = schoolId,
+                                schoolName = schoolName,
+                                schoolShortName = schoolName,
+                                parentIds = listOf(),
+                                studentIds = listOf(),
+                                employeeIds = listOf(),
+                                error = null
+                            )
+                        }
+                )
+            },
+    )
+
     private suspend fun getStudentsAppropriatesToLoginType(): List<StudentWithSemesters> {
         val email = view?.formUsernameValue.orEmpty()
         val password = view?.formPassValue.orEmpty()

app/src/main/java/io/github/wulkanowy/ui/modules/login/advanced/LoginAdvancedView.kt

@@ -1,6 +1,7 @@
 package io.github.wulkanowy.ui.modules.login.advanced
 
 import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.ui.base.BaseView
 import io.github.wulkanowy.ui.modules.login.LoginData
 
@@ -72,7 +73,7 @@ interface LoginAdvancedView : BaseView {
 
     fun navigateToSymbol(loginData: LoginData)
 
-    fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>)
+    fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser)
 
     fun setErrorPinRequired()
 

app/src/main/java/io/github/wulkanowy/ui/modules/login/form/LoginFormFragment.kt

@@ -9,7 +9,7 @@ import androidx.core.view.isVisible
 import androidx.core.widget.doOnTextChanged
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.databinding.FragmentLoginFormBinding
 import io.github.wulkanowy.ui.base.BaseFragment
@@ -226,8 +226,8 @@ class LoginFormFragment : BaseFragment<FragmentLoginFormBinding>(R.layout.fragme
         (activity as? LoginActivity)?.navigateToSymbolFragment(loginData)
     }
 
-    override fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>) {
-        (activity as? LoginActivity)?.navigateToStudentSelect(studentsWithSemesters)
+    override fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser) {
+        (activity as? LoginActivity)?.navigateToStudentSelect(loginData, registerUser)
     }
 
     override fun openAdvancedLogin() {

app/src/main/java/io/github/wulkanowy/ui/modules/login/form/LoginFormPresenter.kt

@@ -93,7 +93,7 @@ class LoginFormPresenter @Inject constructor(
         if (!validateCredentials(email, password, host)) return
 
         resourceFlow {
-            studentRepository.getStudentsScrapper(
+            studentRepository.getUserSubjectsFromScrapper(
                 email = email,
                 password = password,
                 scrapperBaseUrl = host,
@@ -109,14 +109,14 @@ class LoginFormPresenter @Inject constructor(
                 }
             }
             .onResourceSuccess {
-                when (it.size) {
-                    0 -> view?.navigateToSymbol(LoginData(email, password, host))
-                    else -> view?.navigateToStudentSelect(it)
+                val loginData = LoginData(email, password, host, symbol)
+                when (it.symbols.size) {
+                    0 -> view?.navigateToSymbol(loginData)
+                    else -> view?.navigateToStudentSelect(loginData, it)
                 }
                 analytics.logEvent(
                     "registration_form",
                     "success" to true,
-                    "students" to it.size,
                     "scrapperBaseUrl" to host,
                     "error" to "No error"
                 )
@@ -134,7 +134,6 @@ class LoginFormPresenter @Inject constructor(
                 analytics.logEvent(
                     "registration_form",
                     "success" to false,
-                    "students" to -1,
                     "scrapperBaseUrl" to host,
                     "error" to it.message.ifNullOrBlank { "No message" }
                 )

app/src/main/java/io/github/wulkanowy/ui/modules/login/form/LoginFormView.kt

@@ -1,6 +1,6 @@
 package io.github.wulkanowy.ui.modules.login.form
 
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.ui.base.BaseView
 import io.github.wulkanowy.ui.modules.login.LoginData
 
@@ -60,7 +60,7 @@ interface LoginFormView : BaseView {
 
     fun navigateToSymbol(loginData: LoginData)
 
-    fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>)
+    fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser)
 
     fun openPrivacyPolicyPage()
 

app/src/main/java/io/github/wulkanowy/ui/modules/login/recover/LoginRecoverFragment.kt

@@ -98,7 +98,7 @@ class LoginRecoverFragment :
             loginRecoverButton.setOnClickListener { presenter.onRecoverClick() }
             loginRecoverErrorRetry.setOnClickListener { presenter.onRecoverClick() }
             loginRecoverErrorDetails.setOnClickListener { presenter.onDetailsClick() }
-            loginRecoverLogin.setOnClickListener { (activity as LoginActivity).onBackPressed() }
+            loginRecoverLogin.setOnClickListener { (activity as LoginActivity).onBackPressedDispatcher.onBackPressed() }
         }
 
         with(bindingLocal.loginRecoverHost) {

app/src/main/java/io/github/wulkanowy/ui/modules/login/studentselect/LoginStudentSelectAdapter.kt

@@ -2,65 +2,182 @@ package io.github.wulkanowy.ui.modules.login.studentselect
 
 import android.annotation.SuppressLint
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
+import androidx.core.view.isVisible
+import androidx.recyclerview.widget.DiffUtil.ItemCallback
+import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
-import io.github.wulkanowy.databinding.ItemLoginStudentSelectBinding
+import io.github.wulkanowy.R
+import io.github.wulkanowy.databinding.*
 import javax.inject.Inject
 
+@SuppressLint("SetTextI18n")
 class LoginStudentSelectAdapter @Inject constructor() :
-    RecyclerView.Adapter<LoginStudentSelectAdapter.ItemViewHolder>() {
+    ListAdapter<LoginStudentSelectItem, RecyclerView.ViewHolder>(Differ) {
 
-    private val checkedList = mutableMapOf<Int, Boolean>()
+    override fun getItemViewType(position: Int): Int = getItem(position).type.ordinal
 
-    var items = emptyList<Pair<StudentWithSemesters, Boolean>>()
-        set(value) {
-            field = value
-            checkedList.clear()
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        return when (LoginStudentSelectItemType.values()[viewType]) {
+            LoginStudentSelectItemType.EMPTY_SYMBOLS_HEADER -> EmptySymbolsHeaderViewHolder(
+                ItemLoginStudentSelectEmptySymbolHeaderBinding.inflate(inflater, parent, false),
+            )
+            LoginStudentSelectItemType.SYMBOL_HEADER -> SymbolsHeaderViewHolder(
+                ItemLoginStudentSelectHeaderSymbolBinding.inflate(inflater, parent, false)
+            )
+            LoginStudentSelectItemType.SCHOOL_HEADER -> SchoolHeaderViewHolder(
+                ItemLoginStudentSelectHeaderSchoolBinding.inflate(inflater, parent, false)
+            )
+            LoginStudentSelectItemType.STUDENT -> StudentViewHolder(
+                ItemLoginStudentSelectStudentBinding.inflate(inflater, parent, false)
+            )
+            LoginStudentSelectItemType.HELP -> HelpViewHolder(
+                ItemLoginStudentSelectHelpBinding.inflate(inflater, parent, false)
+            )
         }
+    }
 
-    var onClickListener: (StudentWithSemesters, alreadySaved: Boolean) -> Unit = { _, _ -> }
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        when (holder) {
+            is EmptySymbolsHeaderViewHolder -> holder.bind(getItem(position) as LoginStudentSelectItem.EmptySymbolsHeader)
+            is SymbolsHeaderViewHolder -> holder.bind(getItem(position) as LoginStudentSelectItem.SymbolHeader)
+            is SchoolHeaderViewHolder -> holder.bind(getItem(position) as LoginStudentSelectItem.SchoolHeader)
+            is StudentViewHolder -> holder.bind(getItem(position) as LoginStudentSelectItem.Student)
+            is HelpViewHolder -> holder.bind(getItem(position) as LoginStudentSelectItem.Help)
+        }
+    }
 
-    override fun getItemCount() = items.size
+    private class EmptySymbolsHeaderViewHolder(
+        private val binding: ItemLoginStudentSelectEmptySymbolHeaderBinding,
+    ) : RecyclerView.ViewHolder(binding.root) {
 
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = ItemViewHolder(
-        ItemLoginStudentSelectBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-    )
-
-    @SuppressLint("SetTextI18n")
-    override fun onBindViewHolder(holder: ItemViewHolder, position: Int) {
-        val (studentAndSemesters, alreadySaved) = items[position]
-        val student = studentAndSemesters.student
-        val semesters = studentAndSemesters.semesters
-        val diary = semesters.maxByOrNull { it.semesterId }
-
-        with(holder.binding) {
-            loginItemName.text = "${student.studentName} ${diary?.diaryName.orEmpty()}"
-            loginItemSchool.text = student.schoolName
-            loginItemName.isEnabled = !alreadySaved
-            loginItemSchool.isEnabled = !alreadySaved
-            loginItemSignedIn.visibility = if (alreadySaved) View.VISIBLE else View.GONE
-
-            with(loginItemCheck) {
-                isEnabled = !alreadySaved
-                keyListener = null
-                isChecked = checkedList[position] ?: false
+        fun bind(item: LoginStudentSelectItem.EmptySymbolsHeader) {
+            with(binding) {
+                loginStudentSelectEmptySymbolChevron.rotation = if (item.isExpanded) 270f else 90f
+                root.setOnClickListener { item.onClick() }
             }
+        }
+    }
 
-            root.setOnClickListener {
-                onClickListener(studentAndSemesters, alreadySaved)
+    private class SymbolsHeaderViewHolder(
+        private val binding: ItemLoginStudentSelectHeaderSymbolBinding,
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: LoginStudentSelectItem.SymbolHeader) {
+            with(binding) {
+                loginStudentSelectHeaderSymbolValue.text = buildString {
+                    append(root.context.getString(R.string.mobile_device_symbol))
+                    append(": ")
+                    append(item.humanReadableName ?: item.symbol.symbol)
+                    if (!item.humanReadableName.isNullOrBlank()) {
+                        append(" (${item.symbol.symbol})")
+                    }
+                }
+                loginStudentSelectHeaderSymbolUsername.text = item.symbol.userName
+                loginStudentSelectHeaderSymbolUsername.isVisible = item.symbol.userName.isNotBlank()
+                loginStudentSelectHeaderSymbolError.text = item.symbol.error?.message
+                loginStudentSelectHeaderSymbolError.isVisible = item.symbol.error != null
+                loginStudentSelectHeaderSymbolError.maxLines = when {
+                    item.isErrorExpanded -> Int.MAX_VALUE
+                    else -> 2
+                }
+
+                if (item.symbol.error != null) {
+                    root.setOnClickListener { item.onClick(item.symbol) }
+                } else root.setOnClickListener(null)
+            }
+        }
+    }
+
+    private class SchoolHeaderViewHolder(
+        private val binding: ItemLoginStudentSelectHeaderSchoolBinding,
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: LoginStudentSelectItem.SchoolHeader) {
+            with(binding) {
+                loginStudentSelectHeaderSchoolName.text = buildString {
+                    append(item.unit.schoolName.trim())
+                    append(" (")
+                    append(item.unit.schoolShortName)
+                    append(")")
+                }
+                loginStudentSelectHeaderSchoolDetails.isVisible = item.unit.students.isEmpty()
+                loginStudentSelectHeaderSchoolError.text = item.unit.error?.message
+                loginStudentSelectHeaderSchoolError.isVisible = item.unit.error != null
+                loginStudentSelectHeaderSchoolError.maxLines = when {
+                    item.isErrorExpanded -> Int.MAX_VALUE
+                    else -> 2
+                }
+
+                if (item.unit.error != null) {
+                    root.setOnClickListener { item.onClick(item.unit) }
+                } else root.setOnClickListener(null)
+            }
+        }
+    }
+
+    private class StudentViewHolder(
+        private val binding: ItemLoginStudentSelectStudentBinding,
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: LoginStudentSelectItem.Student) {
+            val student = item.student
+            val semesters = student.semesters
+            val diary = semesters.maxByOrNull { it.semesterId }
+
+            with(binding) {
+                loginItemName.text = "${student.studentName} ${student.studentSurname}"
+                loginItemName.isEnabled = item.isEnabled
+                loginItemSignedIn.text = if (!item.isEnabled) {
+                    root.context.getString(R.string.login_signed_in)
+                } else diary?.diaryName
 
                 with(loginItemCheck) {
-                    if (isEnabled) {
-                        isChecked = !isChecked
-                        checkedList[position] = isChecked
-                    }
+                    keyListener = null
+                    isEnabled = item.isEnabled
+                    isChecked = item.isSelected || !item.isEnabled
+                }
+
+                root.isEnabled = item.isEnabled
+                root.setOnClickListener {
+                    item.onClick(item)
                 }
             }
         }
     }
 
-    class ItemViewHolder(val binding: ItemLoginStudentSelectBinding) :
-        RecyclerView.ViewHolder(binding.root)
+    private class HelpViewHolder(
+        private val binding: ItemLoginStudentSelectHelpBinding,
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: LoginStudentSelectItem.Help) {
+            with(binding) {
+                loginStudentSelectHelpSymbol.isVisible = item.isSymbolButtonVisible
+                loginStudentSelectHelpSymbol.setOnClickListener { item.onEnterSymbolClick() }
+                loginStudentSelectHelpMail.setOnClickListener { item.onContactUsClick() }
+                loginStudentSelectHelpDiscord.setOnClickListener { item.onDiscordClick() }
+            }
+        }
+    }
+
+    private object Differ : ItemCallback<LoginStudentSelectItem>() {
+
+        override fun areItemsTheSame(
+            oldItem: LoginStudentSelectItem, newItem: LoginStudentSelectItem
+        ): Boolean = when {
+            oldItem is LoginStudentSelectItem.EmptySymbolsHeader && newItem is LoginStudentSelectItem.EmptySymbolsHeader -> true
+            oldItem is LoginStudentSelectItem.SymbolHeader && newItem is LoginStudentSelectItem.SymbolHeader -> {
+                oldItem.symbol == newItem.symbol
+            }
+            oldItem is LoginStudentSelectItem.Student && newItem is LoginStudentSelectItem.Student -> {
+                oldItem.student == newItem.student
+            }
+            else -> oldItem == newItem
+        }
+
+        override fun areContentsTheSame(
+            oldItem: LoginStudentSelectItem, newItem: LoginStudentSelectItem
+        ): Boolean = oldItem == newItem
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/login/studentselect/LoginStudentSelectFragment.kt

@@ -2,21 +2,20 @@ package io.github.wulkanowy.ui.modules.login.studentselect
 
 import android.os.Bundle
 import android.view.View
-import android.view.View.GONE
-import android.view.View.VISIBLE
 import androidx.core.os.bundleOf
-import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.core.view.isVisible
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.databinding.FragmentLoginStudentSelectBinding
 import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.login.LoginActivity
-import io.github.wulkanowy.ui.modules.main.MainActivity
+import io.github.wulkanowy.ui.modules.login.LoginData
 import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.openEmailClient
 import io.github.wulkanowy.utils.openInternetBrowser
+import io.github.wulkanowy.utils.serializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -36,12 +35,23 @@ class LoginStudentSelectFragment :
     @Inject
     lateinit var preferencesRepository: PreferencesRepository
 
-    companion object {
-        const val ARG_STUDENTS = "STUDENTS"
+    private lateinit var symbolsNames: Array<String>
+    private lateinit var symbolsValues: Array<String>
 
-        fun newInstance(studentsWithSemesters: List<StudentWithSemesters>) =
+    override val symbols: Map<String, String> by lazy {
+        symbolsValues.zip(symbolsNames).toMap()
+    }
+
+    companion object {
+        private const val ARG_LOGIN = "LOGIN"
+        private const val ARG_STUDENTS = "STUDENTS"
+
+        fun newInstance(loginData: LoginData, registerUser: RegisterUser) =
             LoginStudentSelectFragment().apply {
-                arguments = bundleOf(ARG_STUDENTS to studentsWithSemesters)
+                arguments = bundleOf(
+                    ARG_LOGIN to loginData,
+                    ARG_STUDENTS to registerUser,
+                )
             }
     }
 
@@ -49,62 +59,50 @@ class LoginStudentSelectFragment :
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         binding = FragmentLoginStudentSelectBinding.bind(view)
+
+        symbolsNames = resources.getStringArray(R.array.symbols)
+        symbolsValues = resources.getStringArray(R.array.symbols_values)
+
         presenter.onAttachView(
             view = this,
-            students = requireArguments().getSerializable(ARG_STUDENTS) as List<StudentWithSemesters>,
+            loginData = requireArguments().serializable(ARG_LOGIN),
+            registerUser = requireArguments().serializable(ARG_STUDENTS),
         )
     }
 
     override fun initView() {
         (requireActivity() as LoginActivity).showActionBar(true)
 
-        loginAdapter.onClickListener = presenter::onItemSelected
-
         with(binding) {
             loginStudentSelectSignIn.setOnClickListener { presenter.onSignIn() }
-            loginStudentSelectContactDiscord.setOnClickListener { presenter.onDiscordClick() }
-            loginStudentSelectContactEmail.setOnClickListener { presenter.onEmailClick() }
-
-            with(loginStudentSelectRecycler) {
-                layoutManager = LinearLayoutManager(context)
-                adapter = loginAdapter
-            }
+            loginStudentSelectRecycler.adapter = loginAdapter
         }
     }
 
-    override fun updateData(data: List<Pair<StudentWithSemesters, Boolean>>) {
-        with(loginAdapter) {
-            items = data
-            notifyDataSetChanged()
-        }
+    override fun updateData(data: List<LoginStudentSelectItem>) {
+        loginAdapter.submitList(data)
     }
 
-    override fun openMainView() {
-        startActivity(MainActivity.getStartIntent(requireContext()))
-        requireActivity().finish()
+    override fun navigateToSymbol(loginData: LoginData) {
+        (requireActivity() as LoginActivity).navigateToSymbolFragment(loginData)
+    }
+
+    override fun navigateToNext() {
+        (requireActivity() as LoginActivity).navigateToNotifications()
     }
 
     override fun showProgress(show: Boolean) {
-        binding.loginStudentSelectProgress.visibility = if (show) VISIBLE else GONE
+        binding.loginStudentSelectProgress.isVisible = show
     }
 
     override fun showContent(show: Boolean) {
-        binding.loginStudentSelectContent.visibility = if (show) VISIBLE else GONE
+        binding.loginStudentSelectContent.isVisible = show
     }
 
     override fun enableSignIn(enable: Boolean) {
         binding.loginStudentSelectSignIn.isEnabled = enable
     }
 
-    override fun showContact(show: Boolean) {
-        binding.loginStudentSelectContact.visibility = if (show) VISIBLE else GONE
-    }
-
-    override fun onDestroyView() {
-        presenter.onDetachView()
-        super.onDestroyView()
-    }
-
     override fun openDiscordInvite() {
         context?.openInternetBrowser("https://discord.gg/vccAQBr", ::showMessage)
     }
@@ -125,4 +123,9 @@ class LoginStudentSelectFragment :
             )
         )
     }
+
+    override fun onDestroyView() {
+        presenter.onDetachView()
+        super.onDestroyView()
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/login/studentselect/LoginStudentSelectItem.kt

@@ -0,0 +1,50 @@
+package io.github.wulkanowy.ui.modules.login.studentselect
+
+import io.github.wulkanowy.data.pojos.RegisterStudent
+import io.github.wulkanowy.data.pojos.RegisterSymbol
+import io.github.wulkanowy.data.pojos.RegisterUnit
+
+sealed class LoginStudentSelectItem(val type: LoginStudentSelectItemType) {
+
+    data class EmptySymbolsHeader(
+        val isExpanded: Boolean,
+        val onClick: () -> Unit,
+    ) : LoginStudentSelectItem(LoginStudentSelectItemType.EMPTY_SYMBOLS_HEADER)
+
+    data class SymbolHeader(
+        val symbol: RegisterSymbol,
+        val humanReadableName: String?,
+        val isErrorExpanded: Boolean,
+        val onClick: (RegisterSymbol) -> Unit,
+    ) : LoginStudentSelectItem(LoginStudentSelectItemType.SYMBOL_HEADER)
+
+    data class SchoolHeader(
+        val unit: RegisterUnit,
+        val isErrorExpanded: Boolean,
+        val onClick: (RegisterUnit) -> Unit,
+    ) : LoginStudentSelectItem(LoginStudentSelectItemType.SCHOOL_HEADER)
+
+    data class Student(
+        val symbol: RegisterSymbol,
+        val unit: RegisterUnit,
+        val student: RegisterStudent,
+        val isEnabled: Boolean,
+        val isSelected: Boolean,
+        val onClick: (Student) -> Unit,
+    ) : LoginStudentSelectItem(LoginStudentSelectItemType.STUDENT)
+
+    data class Help(
+        val onEnterSymbolClick: () -> Unit,
+        val onContactUsClick: () -> Unit,
+        val onDiscordClick: () -> Unit,
+        val isSymbolButtonVisible: Boolean,
+    ) : LoginStudentSelectItem(LoginStudentSelectItemType.HELP)
+}
+
+enum class LoginStudentSelectItemType {
+    EMPTY_SYMBOLS_HEADER,
+    SYMBOL_HEADER,
+    SCHOOL_HEADER,
+    STUDENT,
+    HELP,
+}

app/src/main/java/io/github/wulkanowy/ui/modules/login/studentselect/LoginStudentSelectPresenter.kt

@@ -1,15 +1,24 @@
 package io.github.wulkanowy.ui.modules.login.studentselect
 
 import io.github.wulkanowy.data.Resource
-import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.dataOrNull
 import io.github.wulkanowy.data.db.entities.StudentWithSemesters
 import io.github.wulkanowy.data.logResourceStatus
+import io.github.wulkanowy.data.mappers.mapToStudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterStudent
+import io.github.wulkanowy.data.pojos.RegisterSymbol
+import io.github.wulkanowy.data.pojos.RegisterUnit
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.data.repositories.StudentRepository
 import io.github.wulkanowy.data.resourceFlow
+import io.github.wulkanowy.sdk.scrapper.login.AccountPermissionException
+import io.github.wulkanowy.sdk.scrapper.login.InvalidSymbolException
 import io.github.wulkanowy.services.sync.SyncManager
 import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.modules.login.LoginData
 import io.github.wulkanowy.ui.modules.login.LoginErrorHandler
 import io.github.wulkanowy.utils.AnalyticsHelper
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.ifNullOrBlank
 import kotlinx.coroutines.flow.onEach
 import timber.log.Timber
@@ -19,18 +28,30 @@ class LoginStudentSelectPresenter @Inject constructor(
     studentRepository: StudentRepository,
     private val loginErrorHandler: LoginErrorHandler,
     private val syncManager: SyncManager,
-    private val analytics: AnalyticsHelper
+    private val analytics: AnalyticsHelper,
+    private val appInfo: AppInfo,
 ) : BasePresenter<LoginStudentSelectView>(loginErrorHandler, studentRepository) {
 
     private var lastError: Throwable? = null
 
-    private val selectedStudents = mutableListOf<StudentWithSemesters>()
+    private lateinit var registerUser: RegisterUser
+    private lateinit var loginData: LoginData
 
-    fun onAttachView(view: LoginStudentSelectView, students: List<StudentWithSemesters>) {
+    private lateinit var students: List<StudentWithSemesters>
+    private var isEmptySymbolsExpanded = false
+    private var expandedSymbolError: RegisterSymbol? = null
+    private var expandedSchoolError: RegisterUnit? = null
+
+    private val selectedStudents = mutableListOf<LoginStudentSelectItem.Student>()
+
+    fun onAttachView(
+        view: LoginStudentSelectView,
+        loginData: LoginData,
+        registerUser: RegisterUser,
+    ) {
         super.onAttachView(view)
         with(view) {
             initView()
-            showContact(false)
             enableSignIn(false)
             loginErrorHandler.onStudentDuplicate = {
                 showMessage(it)
@@ -38,50 +59,171 @@ class LoginStudentSelectPresenter @Inject constructor(
             }
         }
 
-        if (students.size == 1) registerStudents(students)
-        loadData(students)
+        this.loginData = loginData
+        this.registerUser = registerUser
+        loadData()
     }
 
+    private fun loadData() {
+        resetSelectedState()
+
+        resourceFlow { studentRepository.getSavedStudents(false) }.onEach {
+            students = it.dataOrNull.orEmpty()
+            when (it) {
+                is Resource.Loading -> Timber.d("Login student select students load started")
+                is Resource.Success -> refreshItems()
+                is Resource.Error -> {
+                    errorHandler.dispatch(it.error)
+                    lastError = it.error
+                    refreshItems()
+                }
+            }
+        }.launch()
+    }
+
+    private fun createItems(): List<LoginStudentSelectItem> = buildList {
+        val notEmptySymbols = registerUser.symbols.filter { it.schools.isNotEmpty() }
+        val emptySymbols = registerUser.symbols.filter { it.schools.isEmpty() }
+
+        if (emptySymbols.isNotEmpty() && notEmptySymbols.isNotEmpty() && emptySymbols.any { it.symbol == loginData.symbol }) {
+            add(createEmptySymbolItem(emptySymbols.first { it.symbol == loginData.symbol }))
+        }
+
+        addAll(createNotEmptySymbolItems(notEmptySymbols, students))
+        addAll(createEmptySymbolItems(emptySymbols, notEmptySymbols.isNotEmpty()))
+
+        val helpItem = LoginStudentSelectItem.Help(
+            onEnterSymbolClick = ::onEnterSymbol,
+            onContactUsClick = ::onEmailClick,
+            onDiscordClick = ::onDiscordClick,
+            isSymbolButtonVisible = "login" !in loginData.baseUrl,
+        )
+        add(helpItem)
+    }
+
+    private fun createNotEmptySymbolItems(
+        notEmptySymbols: List<RegisterSymbol>,
+        students: List<StudentWithSemesters>,
+    ) = buildList {
+        notEmptySymbols.forEach { registerSymbol ->
+            val symbolHeader = LoginStudentSelectItem.SymbolHeader(
+                symbol = registerSymbol,
+                humanReadableName = view?.symbols?.get(registerSymbol.symbol),
+                isErrorExpanded = expandedSymbolError == registerSymbol,
+                onClick = ::onSymbolItemClick,
+            )
+            add(symbolHeader)
+
+            registerSymbol.schools.forEach { registerUnit ->
+                val schoolHeader = LoginStudentSelectItem.SchoolHeader(
+                    unit = registerUnit,
+                    isErrorExpanded = expandedSchoolError == registerUnit,
+                    onClick = ::onUnitItemClick,
+                )
+                add(schoolHeader)
+
+                registerUnit.students.forEach {
+                    add(createStudentItem(it, registerSymbol, registerUnit, students))
+                }
+            }
+        }
+    }
+
+    private fun createStudentItem(
+        student: RegisterStudent,
+        symbol: RegisterSymbol,
+        school: RegisterUnit,
+        students: List<StudentWithSemesters>,
+    ) = LoginStudentSelectItem.Student(
+        symbol = symbol,
+        unit = school,
+        student = student,
+        onClick = ::onItemSelected,
+        isEnabled = students.none {
+            it.student.email == registerUser.login
+                && it.student.symbol == symbol.symbol
+                && it.student.studentId == student.studentId
+                && it.student.schoolSymbol == school.schoolId
+                && it.student.classId == student.classId
+        },
+        isSelected = selectedStudents
+            .filter { it.symbol.symbol == symbol.symbol }
+            .filter { it.unit.schoolId == school.schoolId }
+            .filter { it.student.studentId == student.studentId }
+            .filter { it.student.classId == student.classId }
+            .size == 1,
+    )
+
+    private fun createEmptySymbolItems(
+        emptySymbols: List<RegisterSymbol>,
+        isNotEmptySymbolsExist: Boolean,
+    ) = buildList {
+        val filteredEmptySymbols = emptySymbols.filter {
+            it.error !is InvalidSymbolException
+        }.ifEmpty { emptySymbols.takeIf { !isNotEmptySymbolsExist }.orEmpty() }
+
+        if (filteredEmptySymbols.isNotEmpty() && isNotEmptySymbolsExist) {
+            val emptyHeader = LoginStudentSelectItem.EmptySymbolsHeader(
+                isExpanded = isEmptySymbolsExpanded,
+                onClick = ::onEmptySymbolsToggle,
+            )
+            add(emptyHeader)
+            if (isEmptySymbolsExpanded) {
+                filteredEmptySymbols.forEach {
+                    add(createEmptySymbolItem(it))
+                }
+            }
+        }
+
+        if (filteredEmptySymbols.isNotEmpty() && !isNotEmptySymbolsExist) {
+            filteredEmptySymbols.forEach {
+                add(createEmptySymbolItem(it))
+            }
+        }
+    }
+
+    private fun createEmptySymbolItem(registerSymbol: RegisterSymbol) =
+        LoginStudentSelectItem.SymbolHeader(
+            symbol = registerSymbol,
+            humanReadableName = view?.symbols?.get(registerSymbol.symbol),
+            isErrorExpanded = expandedSymbolError == registerSymbol,
+            onClick = ::onSymbolItemClick,
+        )
+
     fun onSignIn() {
         registerStudents(selectedStudents)
     }
 
-    fun onItemSelected(studentWithSemester: StudentWithSemesters, alreadySaved: Boolean) {
-        if (alreadySaved) return
+    private fun onEmptySymbolsToggle() {
+        isEmptySymbolsExpanded = !isEmptySymbolsExpanded
+
+        refreshItems()
+    }
+
+    private fun onItemSelected(item: LoginStudentSelectItem.Student) {
+        if (!item.isEnabled) return
 
         selectedStudents
-            .removeAll { it == studentWithSemester }
-            .let { if (!it) selectedStudents.add(studentWithSemester) }
+            .removeAll {
+                it.student.studentId == item.student.studentId &&
+                    it.student.classId == item.student.classId &&
+                    it.unit.schoolId == item.unit.schoolId &&
+                    it.symbol.symbol == item.symbol.symbol
+            }
+            .let { if (!it) selectedStudents.add(item) }
 
         view?.enableSignIn(selectedStudents.isNotEmpty())
+        refreshItems()
     }
 
-    private fun compareStudents(a: Student, b: Student): Boolean {
-        return a.email == b.email
-            && a.symbol == b.symbol
-            && a.studentId == b.studentId
-            && a.schoolSymbol == b.schoolSymbol
-            && a.classId == b.classId
+    private fun onSymbolItemClick(symbol: RegisterSymbol) {
+        expandedSymbolError = if (symbol != expandedSymbolError) symbol else null
+        refreshItems()
     }
 
-    private fun loadData(studentsWithSemesters: List<StudentWithSemesters>) {
-        resetSelectedState()
-
-        resourceFlow { studentRepository.getSavedStudents(false) }.onEach {
-            when (it) {
-                is Resource.Loading -> Timber.d("Login student select students load started")
-                is Resource.Success -> view?.updateData(studentsWithSemesters.map { studentWithSemesters ->
-                    studentWithSemesters to it.data.any { item ->
-                        compareStudents(studentWithSemesters.student, item.student)
-                    }
-                })
-                is Resource.Error -> {
-                    errorHandler.dispatch(it.error)
-                    lastError = it.error
-                    view?.updateData(studentsWithSemesters.map { student -> student to false })
-                }
-            }
-        }.launch()
+    private fun onUnitItemClick(unit: RegisterUnit) {
+        expandedSchoolError = if (unit != expandedSchoolError) unit else null
+        refreshItems()
     }
 
     private fun resetSelectedState() {
@@ -89,7 +231,20 @@ class LoginStudentSelectPresenter @Inject constructor(
         view?.enableSignIn(false)
     }
 
-    private fun registerStudents(studentsWithSemesters: List<StudentWithSemesters>) {
+    private fun refreshItems() {
+        view?.updateData(createItems())
+    }
+
+    private fun registerStudents(students: List<LoginStudentSelectItem>) {
+        val studentsWithSemesters = students
+            .filterIsInstance<LoginStudentSelectItem.Student>().map { item ->
+                item.student.mapToStudentWithSemesters(
+                    user = registerUser,
+                    symbol = item.symbol,
+                    unit = item.unit,
+                    colors = appInfo.defaultColorsForAvatar,
+                )
+            }
         resourceFlow { studentRepository.saveStudents(studentsWithSemesters) }
             .logResourceStatus("registration")
             .onEach {
@@ -100,14 +255,13 @@ class LoginStudentSelectPresenter @Inject constructor(
                     }
                     is Resource.Success -> {
                         syncManager.startOneTimeSyncWorker(quiet = true)
-                        view?.openMainView()
+                        view?.navigateToNext()
                         logRegisterEvent(studentsWithSemesters)
                     }
                     is Resource.Error -> {
                         view?.apply {
                             showProgress(false)
                             showContent(true)
-                            showContact(true)
                         }
                         lastError = it.error
                         loginErrorHandler.dispatch(it.error)
@@ -117,12 +271,37 @@ class LoginStudentSelectPresenter @Inject constructor(
             }.launch("register")
     }
 
-    fun onDiscordClick() {
+    private fun onEnterSymbol() {
+        view?.navigateToSymbol(loginData)
+    }
+
+    private fun onDiscordClick() {
         view?.openDiscordInvite()
     }
 
-    fun onEmailClick() {
-        view?.openEmail(lastError?.message.ifNullOrBlank { "empty" })
+    private fun onEmailClick() {
+        view?.openEmail(lastError?.message.ifNullOrBlank {
+            loginData.baseUrl + "/" + loginData.symbol + "\n" + registerUser.symbols.filterNot {
+                (it.error is AccountPermissionException || it.error is InvalidSymbolException) && it.symbol != loginData.symbol
+            }.joinToString(";\n") { symbol ->
+                buildString {
+                    append(" -")
+                    append(symbol.symbol)
+                    append("(${symbol.error?.message?.let { it.take(46) + "..." } ?: symbol.schools.size})")
+                    if (symbol.schools.isNotEmpty()) {
+                        append(": ")
+                    }
+                    append(symbol.schools.joinToString(", ") { unit ->
+                        buildString {
+                            append(unit.schoolShortName)
+                            append("(${unit.error?.message?.let { it.take(46) + "..." } ?: unit.students.size})")
+                        }
+                    })
+                }
+            } + "\nPozostałe: " + registerUser.symbols.filter {
+                it.error is AccountPermissionException || it.error is InvalidSymbolException
+            }.joinToString(", ") { it.symbol }
+        })
     }
 
     private fun logRegisterEvent(

app/src/main/java/io/github/wulkanowy/ui/modules/login/studentselect/LoginStudentSelectView.kt

@@ -1,15 +1,19 @@
 package io.github.wulkanowy.ui.modules.login.studentselect
 
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
 import io.github.wulkanowy.ui.base.BaseView
+import io.github.wulkanowy.ui.modules.login.LoginData
 
 interface LoginStudentSelectView : BaseView {
 
+    val symbols: Map<String, String>
+
     fun initView()
 
-    fun updateData(data: List<Pair<StudentWithSemesters, Boolean>>)
+    fun updateData(data: List<LoginStudentSelectItem>)
 
-    fun openMainView()
+    fun navigateToSymbol(loginData: LoginData)
+
+    fun navigateToNext()
 
     fun showProgress(show: Boolean)
 
@@ -17,8 +21,6 @@ interface LoginStudentSelectView : BaseView {
 
     fun enableSignIn(enable: Boolean)
 
-    fun showContact(show: Boolean)
-
     fun openDiscordInvite()
 
     fun openEmail(lastError: String)

app/src/main/java/io/github/wulkanowy/ui/modules/login/symbol/LoginSymbolFragment.kt

@@ -12,17 +12,13 @@ import androidx.core.text.parseAsHtml
 import androidx.core.widget.doOnTextChanged
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.databinding.FragmentLoginSymbolBinding
 import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.ui.modules.login.LoginData
-import io.github.wulkanowy.utils.AppInfo
-import io.github.wulkanowy.utils.hideSoftInput
-import io.github.wulkanowy.utils.openEmailClient
-import io.github.wulkanowy.utils.openInternetBrowser
-import io.github.wulkanowy.utils.showSoftInput
+import io.github.wulkanowy.utils.*
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -46,6 +42,8 @@ class LoginSymbolFragment :
         }
     }
 
+    override val symbolValue: String? get() = binding.loginSymbolName.text?.toString()
+
     override val symbolNameError: CharSequence?
         get() = binding.loginSymbolNameLayout.error
 
@@ -54,7 +52,7 @@ class LoginSymbolFragment :
         binding = FragmentLoginSymbolBinding.bind(view)
         presenter.onAttachView(
             view = this,
-            loginData = requireArguments().getSerializable(SAVED_LOGIN_DATA) as LoginData,
+            loginData = requireArguments().serializable(SAVED_LOGIN_DATA),
         )
     }
 
@@ -62,7 +60,7 @@ class LoginSymbolFragment :
         (requireActivity() as LoginActivity).showActionBar(true)
 
         with(binding) {
-            loginSymbolSignIn.setOnClickListener { presenter.attemptLogin(loginSymbolName.text.toString()) }
+            loginSymbolSignIn.setOnClickListener { presenter.attemptLogin() }
             loginSymbolFaq.setOnClickListener { presenter.onFaqClick() }
             loginSymbolContactEmail.setOnClickListener { presenter.onEmailClick() }
 
@@ -95,10 +93,21 @@ class LoginSymbolFragment :
         }
     }
 
-    override fun setErrorSymbolRequire() {
-        binding.loginSymbolNameLayout.apply {
+    override fun setErrorSymbolInvalid() {
+        with(binding.loginSymbolNameLayout) {
             requestFocus()
-            error = getString(R.string.error_field_required)
+            error = getString(R.string.login_invalid_symbol)
+        }
+    }
+
+    override fun setErrorSymbolRequire() {
+        setErrorSymbol(getString(R.string.error_field_required))
+    }
+
+    override fun setErrorSymbol(message: String) {
+        with(binding.loginSymbolNameLayout) {
+            requestFocus()
+            error = message
         }
     }
 
@@ -129,8 +138,8 @@ class LoginSymbolFragment :
         binding.loginSymbolContainer.visibility = if (show) VISIBLE else GONE
     }
 
-    override fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>) {
-        (activity as? LoginActivity)?.navigateToStudentSelect(studentsWithSemesters)
+    override fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser) {
+        (activity as? LoginActivity)?.navigateToStudentSelect(loginData, registerUser)
     }
 
     override fun onSaveInstanceState(outState: Bundle) {

app/src/main/java/io/github/wulkanowy/ui/modules/login/symbol/LoginSymbolPresenter.kt

@@ -1,9 +1,13 @@
 package io.github.wulkanowy.ui.modules.login.symbol
 
 import io.github.wulkanowy.data.Resource
+import io.github.wulkanowy.data.dataOrNull
 import io.github.wulkanowy.data.onResourceNotLoading
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.data.repositories.StudentRepository
 import io.github.wulkanowy.data.resourceFlow
+import io.github.wulkanowy.sdk.scrapper.getNormalizedSymbol
+import io.github.wulkanowy.sdk.scrapper.login.InvalidSymbolException
 import io.github.wulkanowy.ui.base.BasePresenter
 import io.github.wulkanowy.ui.modules.login.LoginData
 import io.github.wulkanowy.ui.modules.login.LoginErrorHandler
@@ -23,9 +27,14 @@ class LoginSymbolPresenter @Inject constructor(
 
     lateinit var loginData: LoginData
 
+    private var registerUser: RegisterUser? = null
+
     fun onAttachView(view: LoginSymbolView, loginData: LoginData) {
         super.onAttachView(view)
         this.loginData = loginData
+        loginErrorHandler.onBadCredentials = {
+            view.setErrorSymbol(it.orEmpty())
+        }
         with(view) {
             initView()
             showContact(false)
@@ -39,21 +48,25 @@ class LoginSymbolPresenter @Inject constructor(
         view?.apply { if (symbolNameError != null) clearSymbolError() }
     }
 
-    fun attemptLogin(symbol: String) {
-        if (symbol.isBlank()) {
+    fun attemptLogin() {
+        if (view?.symbolValue.isNullOrBlank()) {
             view?.setErrorSymbolRequire()
             return
         }
 
+        loginData = loginData.copy(
+            symbol = view?.symbolValue?.getNormalizedSymbol(),
+        )
         resourceFlow {
-            studentRepository.getStudentsScrapper(
+            studentRepository.getUserSubjectsFromScrapper(
                 email = loginData.login,
                 password = loginData.password,
                 scrapperBaseUrl = loginData.baseUrl,
-                symbol = symbol,
+                symbol = loginData.symbol.orEmpty(),
             )
-        }.onEach {
-            when (it) {
+        }.onEach { user ->
+            registerUser = user.dataOrNull
+            when (user) {
                 is Resource.Loading -> view?.run {
                     Timber.i("Login with symbol started")
                     hideSoftKeyboard()
@@ -61,7 +74,7 @@ class LoginSymbolPresenter @Inject constructor(
                     showContent(false)
                 }
                 is Resource.Success -> {
-                    when (it.data.size) {
+                    when (user.data.symbols.size) {
                         0 -> {
                             Timber.i("Login with symbol result: Empty student list")
                             view?.run {
@@ -70,16 +83,26 @@ class LoginSymbolPresenter @Inject constructor(
                             }
                         }
                         else -> {
-                            Timber.i("Login with symbol result: Success")
-                            view?.navigateToStudentSelect(requireNotNull(it.data))
+                            val enteredSymbolDetails = user.data.symbols
+                                .firstOrNull()
+                                ?.takeIf { it.symbol == loginData.symbol }
+
+                            if (enteredSymbolDetails?.error is InvalidSymbolException) {
+                                view?.run {
+                                    setErrorSymbolInvalid()
+                                    showContact(true)
+                                }
+                            } else {
+                                Timber.i("Login with symbol result: Success")
+                                view?.navigateToStudentSelect(loginData, requireNotNull(user.data))
+                            }
                         }
                     }
                     analytics.logEvent(
                         "registration_symbol",
                         "success" to true,
-                        "students" to it.data.size,
                         "scrapperBaseUrl" to loginData.baseUrl,
-                        "symbol" to symbol,
+                        "symbol" to view?.symbolValue,
                         "error" to "No error"
                     )
                 }
@@ -90,11 +113,11 @@ class LoginSymbolPresenter @Inject constructor(
                         "success" to false,
                         "students" to -1,
                         "scrapperBaseUrl" to loginData.baseUrl,
-                        "symbol" to symbol,
-                        "error" to it.error.message.ifNullOrBlank { "No message" }
+                        "symbol" to view?.symbolValue,
+                        "error" to user.error.message.ifNullOrBlank { "No message" }
                     )
-                    loginErrorHandler.dispatch(it.error)
-                    lastError = it.error
+                    loginErrorHandler.dispatch(user.error)
+                    lastError = user.error
                     view?.showContact(true)
                 }
             }
@@ -111,6 +134,12 @@ class LoginSymbolPresenter @Inject constructor(
     }
 
     fun onEmailClick() {
-        view?.openEmail(loginData.baseUrl, lastError?.message.ifNullOrBlank { "empty" })
+        view?.openEmail(loginData.baseUrl, lastError?.message.ifNullOrBlank {
+            registerUser?.symbols?.flatMap { symbol ->
+                symbol.schools.map { it.error?.message } + symbol.error?.message
+            }?.filterNotNull()?.distinct()?.joinToString(";") {
+                it.take(46) + "..."
+            } ?: "blank"
+        })
     }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/login/symbol/LoginSymbolView.kt

@@ -1,10 +1,13 @@
 package io.github.wulkanowy.ui.modules.login.symbol
 
-import io.github.wulkanowy.data.db.entities.StudentWithSemesters
+import io.github.wulkanowy.data.pojos.RegisterUser
 import io.github.wulkanowy.ui.base.BaseView
+import io.github.wulkanowy.ui.modules.login.LoginData
 
 interface LoginSymbolView : BaseView {
 
+    val symbolValue: String?
+
     val symbolNameError: CharSequence?
 
     fun initView()
@@ -13,8 +16,12 @@ interface LoginSymbolView : BaseView {
 
     fun setErrorSymbolIncorrect()
 
+    fun setErrorSymbolInvalid()
+
     fun setErrorSymbolRequire()
 
+    fun setErrorSymbol(message: String)
+
     fun clearSymbolError()
 
     fun clearAndFocusSymbol()
@@ -27,7 +34,7 @@ interface LoginSymbolView : BaseView {
 
     fun showContent(show: Boolean)
 
-    fun navigateToStudentSelect(studentsWithSemesters: List<StudentWithSemesters>)
+    fun navigateToStudentSelect(loginData: LoginData, registerUser: RegisterUser)
 
     fun showContact(show: Boolean)
 

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

@@ -6,6 +6,8 @@ import android.os.Build.VERSION_CODES.P
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
+import androidx.activity.OnBackPressedCallback
+import androidx.activity.addCallback
 import androidx.core.view.ViewCompat
 import androidx.core.view.isVisible
 import androidx.fragment.app.DialogFragment
@@ -50,6 +52,8 @@ class MainActivity : BaseActivity<MainPresenter, ActivityMainBinding>(), MainVie
     @Inject
     lateinit var appInfo: AppInfo
 
+    private var onBackCallback: OnBackPressedCallback? = null
+
     private var accountMenu: MenuItem? = null
 
     private val overlayProvider by lazy { ElevationOverlayProvider(this) }
@@ -88,6 +92,9 @@ class MainActivity : BaseActivity<MainPresenter, ActivityMainBinding>(), MainVie
         this.savedInstanceState = savedInstanceState
         messageContainer = binding.mainMessageContainer
         updateHelper.messageContainer = binding.mainFragmentContainer
+        onBackCallback = onBackPressedDispatcher.addCallback(this, enabled = false) {
+            presenter.onBackPressed()
+        }
 
         val destination = intent.getStringExtra(EXTRA_START_DESTINATION)
             ?.takeIf { savedInstanceState == null }
@@ -266,6 +273,7 @@ class MainActivity : BaseActivity<MainPresenter, ActivityMainBinding>(), MainVie
 
         analytics.popCurrentScreen(navController.currentFrag!!::class.simpleName)
         navController.pushFragment(fragment)
+        onBackCallback?.isEnabled = !isRootView
     }
 
     override fun popView(depth: Int) {
@@ -273,10 +281,7 @@ class MainActivity : BaseActivity<MainPresenter, ActivityMainBinding>(), MainVie
 
         analytics.popCurrentScreen(navController.currentFrag!!::class.simpleName)
         navController.safelyPopFragments(depth)
-    }
-
-    override fun onBackPressed() {
-        presenter.onBackPressed { super.onBackPressed() }
+        onBackCallback?.isEnabled = !isRootView
     }
 
     override fun showStudentAvatar(student: Student) {

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

@@ -139,12 +139,9 @@ class MainPresenter @Inject constructor(
         return true
     }
 
-    fun onBackPressed(default: () -> Unit) {
+    fun onBackPressed() {
         Timber.i("Back pressed in main view")
-        view?.run {
-            if (isRootView) default()
-            else popView()
-        }
+        view?.popView()
     }
 
     fun onTabSelected(index: Int, wasSelected: Boolean): Boolean {

app/src/main/java/io/github/wulkanowy/ui/modules/message/mailboxchooser/MailboxChooserDialog.kt

@@ -10,6 +10,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.data.db.entities.Mailbox
 import io.github.wulkanowy.databinding.DialogMailboxChooserBinding
 import io.github.wulkanowy.ui.base.BaseDialogFragment
+import io.github.wulkanowy.utils.parcelableArray
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -52,8 +53,7 @@ class MailboxChooserDialog : BaseDialogFragment<DialogMailboxChooserBinding>(),
         presenter.onAttachView(
             view = this,
             requireMailbox = requireArguments().getBoolean(REQUIRED_KEY, false),
-            mailboxes = requireArguments().getParcelableArray(MAILBOX_KEY).orEmpty()
-                .toList() as List<Mailbox>,
+            mailboxes = requireArguments().parcelableArray<Mailbox>(MAILBOX_KEY).orEmpty().toList(),
         )
     }
 

app/src/main/java/io/github/wulkanowy/ui/modules/message/preview/MessagePreviewFragment.kt

@@ -13,6 +13,7 @@ import android.webkit.WebResourceRequest
 import android.webkit.WebView
 import android.webkit.WebViewClient
 import androidx.core.content.getSystemService
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import io.github.wulkanowy.R
@@ -23,6 +24,7 @@ import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.ui.modules.message.send.SendMessageActivity
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.shareText
 import javax.inject.Inject
 
@@ -66,13 +68,12 @@ class MessagePreviewFragment :
     companion object {
         const val MESSAGE_ID_KEY = "message_id"
 
-        fun newInstance(message: Message): MessagePreviewFragment {
-            return MessagePreviewFragment().apply {
-                arguments = Bundle().apply { putSerializable(MESSAGE_ID_KEY, message) }
-            }
+        fun newInstance(message: Message) = MessagePreviewFragment().apply {
+            arguments = bundleOf(MESSAGE_ID_KEY to message)
         }
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)
@@ -83,8 +84,8 @@ class MessagePreviewFragment :
         binding = FragmentMessagePreviewBinding.bind(view)
         messageContainer = binding.messagePreviewContainer
         presenter.onAttachView(
-            this,
-            (savedInstanceState ?: arguments)?.getSerializable(MESSAGE_ID_KEY) as? Message
+            view = this,
+            message = (savedInstanceState ?: arguments)?.serializable(MESSAGE_ID_KEY),
         )
     }
 

app/src/main/java/io/github/wulkanowy/ui/modules/message/preview/MessagePreviewPresenter.kt

@@ -186,7 +186,7 @@ class MessagePreviewPresenter @Inject constructor(
             runCatching {
                 val student = studentRepository.getCurrentStudent(decryptPass = true)
                 val mailbox = messageRepository.getMailboxByStudent(student)
-                messageRepository.deleteMessage(student, mailbox!!, message!!)
+                messageRepository.deleteMessage(student, mailbox, message!!)
             }
                 .onFailure {
                     retryCallback = { onMessageDelete() }

app/src/main/java/io/github/wulkanowy/ui/modules/message/send/SendMessageActivity.kt

@@ -28,6 +28,7 @@ import io.github.wulkanowy.ui.modules.message.mailboxchooser.MailboxChooserDialo
 import io.github.wulkanowy.ui.modules.message.mailboxchooser.MailboxChooserDialog.Companion.LISTENER_KEY
 import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.hideSoftInput
+import io.github.wulkanowy.utils.nullableSerializable
 import io.github.wulkanowy.utils.showSoftInput
 import javax.inject.Inject
 
@@ -108,12 +109,12 @@ class SendMessageActivity : BaseActivity<SendMessagePresenter, ActivitySendMessa
 
         presenter.onAttachView(
             view = this,
-            reason = intent.getSerializableExtra(EXTRA_REASON) as? String,
-            message = intent.getSerializableExtra(EXTRA_MESSAGE) as? Message,
-            reply = intent.getSerializableExtra(EXTRA_REPLY) as? Boolean
+            reason = intent.nullableSerializable(EXTRA_REASON),
+            message = intent.nullableSerializable(EXTRA_MESSAGE),
+            reply = intent.nullableSerializable(EXTRA_REPLY)
         )
         supportFragmentManager.setFragmentResultListener(LISTENER_KEY, this) { _, bundle ->
-            presenter.onMailboxSelected(bundle.getSerializable(MAILBOX_KEY) as? Mailbox)
+            presenter.onMailboxSelected(bundle.nullableSerializable(MAILBOX_KEY))
         }
     }
 

app/src/main/java/io/github/wulkanowy/ui/modules/message/tab/MessageTabFragment.kt

@@ -9,6 +9,7 @@ import android.view.View.*
 import android.widget.CompoundButton
 import androidx.appcompat.view.ActionMode
 import androidx.appcompat.widget.SearchView
+import androidx.core.os.bundleOf
 import androidx.core.view.updatePadding
 import androidx.fragment.app.setFragmentResultListener
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -27,6 +28,7 @@ import io.github.wulkanowy.ui.widgets.DividerItemDecoration
 import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.getThemeAttrColor
 import io.github.wulkanowy.utils.hideSoftInput
+import io.github.wulkanowy.utils.nullableSerializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -43,12 +45,8 @@ class MessageTabFragment : BaseFragment<FragmentMessageTabBinding>(R.layout.frag
 
         const val MESSAGE_TAB_FOLDER_ID = "message_tab_folder_id"
 
-        fun newInstance(folder: MessageFolder): MessageTabFragment {
-            return MessageTabFragment().apply {
-                arguments = Bundle().apply {
-                    putString(MESSAGE_TAB_FOLDER_ID, folder.name)
-                }
-            }
+        fun newInstance(folder: MessageFolder) = MessageTabFragment().apply {
+            arguments = bundleOf(MESSAGE_TAB_FOLDER_ID to folder.name)
         }
     }
 
@@ -86,6 +84,7 @@ class MessageTabFragment : BaseFragment<FragmentMessageTabBinding>(R.layout.frag
         }
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)
@@ -130,11 +129,12 @@ class MessageTabFragment : BaseFragment<FragmentMessageTabBinding>(R.layout.frag
 
         setFragmentResultListener(requireArguments().getString(MESSAGE_TAB_FOLDER_ID)!!) { _, bundle ->
             presenter.onMailboxSelected(
-                mailbox = bundle.getSerializable(MailboxChooserDialog.MAILBOX_KEY) as? Mailbox,
+                mailbox = bundle.nullableSerializable(MailboxChooserDialog.MAILBOX_KEY),
             )
         }
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
         super.onCreateOptionsMenu(menu, inflater)
         inflater.inflate(R.menu.action_menu_message_tab, menu)

app/src/main/java/io/github/wulkanowy/ui/modules/note/NoteDialog.kt

@@ -6,6 +6,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.core.content.ContextCompat
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Note
@@ -13,6 +14,7 @@ import io.github.wulkanowy.databinding.DialogNoteBinding
 import io.github.wulkanowy.sdk.scrapper.notes.NoteCategory
 import io.github.wulkanowy.utils.getThemeAttrColor
 import io.github.wulkanowy.utils.lifecycleAwareVariable
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.toFormattedString
 
 class NoteDialog : DialogFragment() {
@@ -25,17 +27,15 @@ class NoteDialog : DialogFragment() {
 
         private const val ARGUMENT_KEY = "Item"
 
-        fun newInstance(exam: Note) = NoteDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, exam) }
+        fun newInstance(note: Note) = NoteDialog().apply {
+            arguments = bundleOf(ARGUMENT_KEY to note)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            note = getSerializable(ARGUMENT_KEY) as Note
-        }
+        note = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(

app/src/main/java/io/github/wulkanowy/ui/modules/notifications/NotificationsFragment.kt

@@ -0,0 +1,64 @@
+package io.github.wulkanowy.ui.modules.notifications
+
+import android.os.Bundle
+import android.view.View
+import androidx.activity.result.contract.ActivityResultContracts.RequestPermission
+import androidx.appcompat.app.AlertDialog
+import dagger.hilt.android.AndroidEntryPoint
+import io.github.wulkanowy.R
+import io.github.wulkanowy.databinding.FragmentNotificationsBinding
+import io.github.wulkanowy.ui.base.BaseFragment
+import io.github.wulkanowy.ui.modules.login.LoginActivity
+import io.github.wulkanowy.utils.openNotificationSettings
+
+@AndroidEntryPoint
+class NotificationsFragment :
+    BaseFragment<FragmentNotificationsBinding>(R.layout.fragment_notifications) {
+
+    private val permission = "android.permission.POST_NOTIFICATIONS"
+
+    private val requestPermissionLauncher = registerForActivityResult(RequestPermission()) {
+        if (it) {
+            navigateToFinish()
+        } else showSettingsDialog()
+    }
+
+    companion object {
+        fun newInstance() = NotificationsFragment()
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        binding = FragmentNotificationsBinding.bind(view)
+        initView()
+    }
+
+    private fun initView() {
+        with(binding) {
+            notificationsSkip.setOnClickListener { navigateToFinish() }
+            notificationsEnable.setOnClickListener { requestPermission() }
+        }
+    }
+
+    private fun showSettingsDialog() {
+        AlertDialog.Builder(requireContext())
+            .setTitle(R.string.notifications_header_title)
+            .setMessage(R.string.notifications_header_description)
+            .setNegativeButton(R.string.notifications_skip) { dialog, _ ->
+                dialog.dismiss()
+                navigateToFinish()
+            }
+            .setPositiveButton(R.string.pref_notification_go_to_settings) { _, _ ->
+                requireActivity().openNotificationSettings()
+            }
+            .show()
+    }
+
+    private fun requestPermission() {
+        requestPermissionLauncher.launch(permission)
+    }
+
+    private fun navigateToFinish() {
+        (requireActivity() as LoginActivity).navigateToFinish()
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/schoolannouncement/SchoolAnnouncementAdapter.kt

@@ -2,10 +2,10 @@ package io.github.wulkanowy.ui.modules.schoolannouncement
 
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import androidx.core.text.parseAsHtml
 import androidx.recyclerview.widget.RecyclerView
 import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
 import io.github.wulkanowy.databinding.ItemSchoolAnnouncementBinding
+import io.github.wulkanowy.utils.parseUonetHtml
 import io.github.wulkanowy.utils.toFormattedString
 import javax.inject.Inject
 
@@ -28,7 +28,7 @@ class SchoolAnnouncementAdapter @Inject constructor() :
         with(holder.binding) {
             schoolAnnouncementItemDate.text = item.date.toFormattedString()
             schoolAnnouncementItemType.text = item.subject
-            schoolAnnouncementItemContent.text = item.content.parseAsHtml()
+            schoolAnnouncementItemContent.text = item.content.parseUonetHtml()
 
             root.setOnClickListener { onItemClickListener(item) }
         }

app/src/main/java/io/github/wulkanowy/ui/modules/schoolannouncement/SchoolAnnouncementDialog.kt

@@ -4,11 +4,13 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.core.text.parseAsHtml
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.data.db.entities.SchoolAnnouncement
 import io.github.wulkanowy.databinding.DialogSchoolAnnouncementBinding
 import io.github.wulkanowy.utils.lifecycleAwareVariable
+import io.github.wulkanowy.utils.parseUonetHtml
+import io.github.wulkanowy.utils.serializable
 import io.github.wulkanowy.utils.toFormattedString
 
 class SchoolAnnouncementDialog : DialogFragment() {
@@ -21,17 +23,15 @@ class SchoolAnnouncementDialog : DialogFragment() {
 
         private const val ARGUMENT_KEY = "item"
 
-        fun newInstance(exam: SchoolAnnouncement) = SchoolAnnouncementDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, exam) }
+        fun newInstance(announcement: SchoolAnnouncement) = SchoolAnnouncementDialog().apply {
+            arguments = bundleOf(ARGUMENT_KEY to announcement)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            announcement = getSerializable(ARGUMENT_KEY) as SchoolAnnouncement
-        }
+        announcement = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(
@@ -46,7 +46,7 @@ class SchoolAnnouncementDialog : DialogFragment() {
         with(binding) {
             announcementDialogSubjectValue.text = announcement.subject
             announcementDialogDateValue.text = announcement.date.toFormattedString()
-            announcementDialogDescriptionValue.text = announcement.content.parseAsHtml()
+            announcementDialogDescriptionValue.text = announcement.content.parseUonetHtml()
 
             announcementDialogClose.setOnClickListener { dismiss() }
         }

app/src/main/java/io/github/wulkanowy/ui/modules/settings/notifications/NotificationsFragment.kt

@@ -1,18 +1,16 @@
 package io.github.wulkanowy.ui.modules.settings.notifications
 
-import android.annotation.SuppressLint
 import android.content.Intent
 import android.content.SharedPreferences
-import android.net.Uri
-import android.os.Build
+import android.content.pm.PackageManager
 import android.os.Bundle
-import android.provider.Settings
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AlertDialog
 import androidx.core.app.NotificationManagerCompat
+import androidx.core.content.ContextCompat
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreferenceCompat
@@ -26,7 +24,7 @@ import io.github.wulkanowy.ui.base.ErrorDialog
 import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.openInternetBrowser
-import timber.log.Timber
+import io.github.wulkanowy.utils.openNotificationSettings
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -42,7 +40,14 @@ class NotificationsFragment : PreferenceFragmentCompat(),
 
     override val titleStringId get() = R.string.pref_settings_notifications_title
 
+    private val notificationsPermission = "android.permission.POST_NOTIFICATIONS"
+
     override val isNotificationPermissionGranted: Boolean
+        get() = ContextCompat.checkSelfPermission(
+            requireContext(), notificationsPermission
+        ) == PackageManager.PERMISSION_GRANTED
+
+    override val isNotificationPiggybackPermissionGranted: Boolean
         get() {
             val packageNameList =
                 NotificationManagerCompat.getEnabledListenerPackages(requireContext())
@@ -51,6 +56,13 @@ class NotificationsFragment : PreferenceFragmentCompat(),
             return appPackageName in packageNameList
         }
 
+    private val requestPermissionLauncher =
+        registerForActivityResult(ActivityResultContracts.RequestPermission()) {
+            if (it) {
+                presenter.onNotificationsPermissionResult()
+            } else openNotificationsPermissionDialog()
+        }
+
     private val notificationSettingsPiggybackContract =
         registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
             presenter.onNotificationPiggybackPermissionResult()
@@ -156,25 +168,29 @@ class NotificationsFragment : PreferenceFragmentCompat(),
             .show()
     }
 
-    @SuppressLint("InlinedApi")
     override fun openSystemSettings() {
-        val intent = if (appInfo.systemVersion >= Build.VERSION_CODES.O) {
-            Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS).apply {
-                putExtra("android.provider.extra.APP_PACKAGE", requireActivity().packageName)
-            }
-        } else {
-            Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS).apply {
-                data = Uri.fromParts("package", requireActivity().packageName, null)
-            }
-        }
-        try {
-            requireActivity().startActivity(intent)
-        } catch (e: Exception) {
-            Timber.e(e)
-        }
+        requireActivity().openNotificationSettings()
     }
 
-    override fun openNotificationPermissionDialog() {
+    override fun requestNotificationPermissions() {
+        requestPermissionLauncher.launch(notificationsPermission)
+    }
+
+    override fun openNotificationsPermissionDialog() {
+        AlertDialog.Builder(requireContext())
+            .setTitle(R.string.notifications_header_title)
+            .setMessage(R.string.notifications_header_description)
+            .setPositiveButton(R.string.pref_notification_go_to_settings) { _, _ ->
+                requireActivity().openNotificationSettings()
+            }
+            .setNegativeButton(android.R.string.cancel) { _, _ ->
+                setNotificationPreferencesChecked(false)
+            }
+            .setOnDismissListener { setNotificationPreferencesChecked(false) }
+            .show()
+    }
+
+    override fun openNotificationPiggyBackPermissionDialog() {
         AlertDialog.Builder(requireContext())
             .setTitle(getString(R.string.pref_notification_piggyback_popup_title))
             .setMessage(getString(R.string.pref_notification_piggyback_popup_description))
@@ -202,6 +218,11 @@ class NotificationsFragment : PreferenceFragmentCompat(),
             .show()
     }
 
+    override fun setNotificationPreferencesChecked(isChecked: Boolean) {
+        findPreference<SwitchPreferenceCompat>(getString(R.string.pref_key_notifications_enable))?.isChecked =
+            isChecked
+    }
+
     override fun setNotificationPiggybackPreferenceChecked(isChecked: Boolean) {
         findPreference<SwitchPreferenceCompat>(getString(R.string.pref_key_notifications_piggyback))?.isChecked =
             isChecked

app/src/main/java/io/github/wulkanowy/ui/modules/settings/notifications/NotificationsPresenter.kt

@@ -26,12 +26,13 @@ class NotificationsPresenter @Inject constructor(
 
         with(view) {
             enableNotification(
-                preferencesRepository.notificationsEnableKey,
-                preferencesRepository.isServiceEnabled
+                notificationKey = preferencesRepository.notificationsEnableKey,
+                enable = preferencesRepository.isServiceEnabled
             )
             initView(appInfo.isDebug)
         }
 
+        checkNotificationsPermissionState()
         checkNotificationPiggybackState()
 
         Timber.i("Settings notifications view was initialized")
@@ -49,12 +50,17 @@ class NotificationsPresenter @Inject constructor(
                         view?.openNotificationExactAlarmSettings()
                     }
                 }
+                notificationsEnableKey -> {
+                    if (isNotificationsEnable && view?.isNotificationPermissionGranted == false) {
+                        view?.requestNotificationPermissions()
+                    }
+                }
                 isDebugNotificationEnableKey -> {
                     chuckerCollector.showNotification = isDebugNotificationEnable
                 }
                 isNotificationPiggybackEnabledKey -> {
-                    if (isNotificationPiggybackEnabled && view?.isNotificationPermissionGranted == false) {
-                        view?.openNotificationPermissionDialog()
+                    if (isNotificationPiggybackEnabled && view?.isNotificationPiggybackPermissionGranted == false) {
+                        view?.openNotificationPiggyBackPermissionDialog()
                     }
                 }
             }
@@ -70,9 +76,15 @@ class NotificationsPresenter @Inject constructor(
         view?.openSystemSettings()
     }
 
+    fun onNotificationsPermissionResult() {
+        view?.run {
+            setNotificationPreferencesChecked(isNotificationPermissionGranted)
+        }
+    }
+
     fun onNotificationPiggybackPermissionResult() {
         view?.run {
-            setNotificationPiggybackPreferenceChecked(isNotificationPermissionGranted)
+            setNotificationPiggybackPreferenceChecked(isNotificationPiggybackPermissionGranted)
         }
     }
 
@@ -80,10 +92,18 @@ class NotificationsPresenter @Inject constructor(
         view?.setUpcomingLessonsNotificationPreferenceChecked(timetableNotificationHelper.canScheduleExactAlarms())
     }
 
+    private fun checkNotificationsPermissionState() {
+        if (preferencesRepository.isNotificationsEnable) {
+            view?.run {
+                setNotificationPreferencesChecked(isNotificationPermissionGranted)
+            }
+        }
+    }
+
     private fun checkNotificationPiggybackState() {
         if (preferencesRepository.isNotificationPiggybackEnabled) {
             view?.run {
-                setNotificationPiggybackPreferenceChecked(isNotificationPermissionGranted)
+                setNotificationPiggybackPreferenceChecked(isNotificationPiggybackPermissionGranted)
             }
         }
     }

app/src/main/java/io/github/wulkanowy/ui/modules/settings/notifications/NotificationsView.kt

@@ -6,6 +6,8 @@ interface NotificationsView : BaseView {
 
     val isNotificationPermissionGranted: Boolean
 
+    val isNotificationPiggybackPermissionGranted: Boolean
+
     fun initView(showDebugNotificationSwitch: Boolean)
 
     fun showFixSyncDialog()
@@ -14,10 +16,16 @@ interface NotificationsView : BaseView {
 
     fun enableNotification(notificationKey: String, enable: Boolean)
 
-    fun openNotificationPermissionDialog()
+    fun requestNotificationPermissions()
+
+    fun openNotificationsPermissionDialog()
+
+    fun openNotificationPiggyBackPermissionDialog()
 
     fun openNotificationExactAlarmSettings()
 
+    fun setNotificationPreferencesChecked(isChecked: Boolean)
+
     fun setNotificationPiggybackPreferenceChecked(isChecked: Boolean)
 
     fun setUpcomingLessonsNotificationPreferenceChecked(isChecked: Boolean)

app/src/main/java/io/github/wulkanowy/ui/modules/studentinfo/StudentInfoFragment.kt

@@ -8,6 +8,7 @@ import android.view.MenuInflater
 import android.view.View
 import android.widget.Toast
 import androidx.core.content.getSystemService
+import androidx.core.os.bundleOf
 import androidx.core.view.get
 import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -24,6 +25,8 @@ import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.capitalise
 import io.github.wulkanowy.utils.getThemeAttrColor
+import io.github.wulkanowy.utils.nullableSerializable
+import io.github.wulkanowy.utils.serializable
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -38,7 +41,9 @@ class StudentInfoFragment :
     lateinit var studentInfoAdapter: StudentInfoAdapter
 
     override val titleStringId: Int
-        get() = when (requireArguments().getSerializable(INFO_TYPE_ARGUMENT_KEY) as? StudentInfoView.Type) {
+        get() = when (
+            requireArguments().nullableSerializable<StudentInfoView.Type>(INFO_TYPE_ARGUMENT_KEY)
+        ) {
             StudentInfoView.Type.PERSONAL -> R.string.account_personal_data
             StudentInfoView.Type.CONTACT -> R.string.account_contact
             StudentInfoView.Type.ADDRESS -> R.string.account_address
@@ -58,13 +63,14 @@ class StudentInfoFragment :
 
         fun newInstance(type: StudentInfoView.Type, studentWithSemesters: StudentWithSemesters) =
             StudentInfoFragment().apply {
-                arguments = Bundle().apply {
-                    putSerializable(INFO_TYPE_ARGUMENT_KEY, type)
-                    putSerializable(STUDENT_ARGUMENT_KEY, studentWithSemesters)
-                }
+                arguments = bundleOf(
+                    INFO_TYPE_ARGUMENT_KEY to type,
+                    STUDENT_ARGUMENT_KEY to studentWithSemesters
+                )
             }
     }
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)
@@ -74,9 +80,9 @@ class StudentInfoFragment :
         super.onViewCreated(view, savedInstanceState)
         binding = FragmentStudentInfoBinding.bind(view)
         presenter.onAttachView(
-            this,
-            requireArguments().getSerializable(INFO_TYPE_ARGUMENT_KEY) as StudentInfoView.Type,
-            requireArguments().getSerializable(STUDENT_ARGUMENT_KEY) as StudentWithSemesters
+            view = this,
+            type = requireArguments().serializable(INFO_TYPE_ARGUMENT_KEY),
+            studentWithSemesters = requireArguments().serializable(STUDENT_ARGUMENT_KEY),
         )
     }
 
@@ -153,7 +159,6 @@ class StudentInfoFragment :
         )
     }
 
-    @OptIn(ExperimentalStdlibApi::class)
     override fun showFamilyTypeData(studentInfo: StudentInfo) {
         val items = buildList {
             add(studentInfo.firstGuardian?.let {

app/src/main/java/io/github/wulkanowy/ui/modules/timetable/TimetableDialog.kt

@@ -8,14 +8,12 @@ import android.view.View
 import android.view.View.GONE
 import android.view.View.VISIBLE
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Timetable
 import io.github.wulkanowy.databinding.DialogTimetableBinding
-import io.github.wulkanowy.utils.capitalise
-import io.github.wulkanowy.utils.getThemeAttrColor
-import io.github.wulkanowy.utils.lifecycleAwareVariable
-import io.github.wulkanowy.utils.toFormattedString
+import io.github.wulkanowy.utils.*
 import java.time.Instant
 
 class TimetableDialog : DialogFragment() {
@@ -28,17 +26,15 @@ class TimetableDialog : DialogFragment() {
 
         private const val ARGUMENT_KEY = "Item"
 
-        fun newInstance(exam: Timetable) = TimetableDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, exam) }
+        fun newInstance(lesson: Timetable) = TimetableDialog().apply {
+            arguments = bundleOf(ARGUMENT_KEY to lesson)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            lesson = getSerializable(ARGUMENT_KEY) as Timetable
-        }
+        lesson = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(

app/src/main/java/io/github/wulkanowy/ui/modules/timetable/TimetableFragment.kt

@@ -7,6 +7,7 @@ import android.view.MenuItem
 import android.view.View
 import android.view.View.GONE
 import android.view.View.VISIBLE
+import androidx.core.os.bundleOf
 import androidx.core.text.parseAsHtml
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
@@ -39,9 +40,7 @@ class TimetableFragment : BaseFragment<FragmentTimetableBinding>(R.layout.fragme
         private const val ARGUMENT_DATE_KEY = "ARGUMENT_DATE"
 
         fun newInstance(date: LocalDate? = null) = TimetableFragment().apply {
-            arguments = Bundle().apply {
-                date?.let { putLong(ARGUMENT_DATE_KEY, it.toEpochDay()) }
-            }
+            arguments = date?.let { bundleOf(ARGUMENT_DATE_KEY to it.toEpochDay()) }
         }
     }
 
@@ -51,6 +50,7 @@ class TimetableFragment : BaseFragment<FragmentTimetableBinding>(R.layout.fragme
 
     override val currentStackSize get() = (activity as? MainActivity)?.currentStackSize
 
+    @Suppress("DEPRECATION")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)

app/src/main/java/io/github/wulkanowy/ui/modules/timetable/completed/CompletedLessonDialog.kt

@@ -4,10 +4,12 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.data.db.entities.CompletedLesson
 import io.github.wulkanowy.databinding.DialogLessonCompletedBinding
 import io.github.wulkanowy.utils.lifecycleAwareVariable
+import io.github.wulkanowy.utils.serializable
 
 class CompletedLessonDialog : DialogFragment() {
 
@@ -19,17 +21,15 @@ class CompletedLessonDialog : DialogFragment() {
 
         private const val ARGUMENT_KEY = "Item"
 
-        fun newInstance(exam: CompletedLesson) = CompletedLessonDialog().apply {
-            arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, exam) }
+        fun newInstance(lesson: CompletedLesson) = CompletedLessonDialog().apply {
+            arguments = bundleOf(ARGUMENT_KEY to lesson)
         }
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setStyle(STYLE_NO_TITLE, 0)
-        arguments?.run {
-            completedLesson = getSerializable(ARGUMENT_KEY) as CompletedLesson
-        }
+        completedLesson = requireArguments().serializable(ARGUMENT_KEY)
     }
 
     override fun onCreateView(

app/src/main/java/io/github/wulkanowy/utils/BaseRemoteConfigHelper.kt

@@ -0,0 +1,9 @@
+package io.github.wulkanowy.utils
+
+abstract class BaseRemoteConfigHelper {
+
+    open fun initialize() = Unit
+
+    open val userAgentTemplate: String
+        get() = RemoteConfigDefaults.USER_AGENT_TEMPLATE.value as String
+}

app/src/main/java/io/github/wulkanowy/utils/BundleExtension.kt

@@ -0,0 +1,32 @@
+package io.github.wulkanowy.utils
+
+import android.content.Intent
+import android.os.Build
+import android.os.Bundle
+import java.io.Serializable
+
+inline fun <reified T : Serializable> Bundle.serializable(key: String): T = when {
+    Build.VERSION.SDK_INT >= 33 -> getSerializable(key, T::class.java)!!
+    else -> @Suppress("DEPRECATION") getSerializable(key) as T
+}
+
+inline fun <reified T : Serializable> Bundle.nullableSerializable(key: String): T? = when {
+    Build.VERSION.SDK_INT >= 33 -> getSerializable(key, T::class.java)
+    else -> @Suppress("DEPRECATION") getSerializable(key) as T?
+}
+
+@Suppress("DEPRECATION", "UNCHECKED_CAST")
+inline fun <reified T : Serializable> Bundle.parcelableArray(key: String): Array<T>? = when {
+    Build.VERSION.SDK_INT >= 33 -> getParcelableArray(key, T::class.java)
+    else -> getParcelableArray(key) as Array<T>?
+}
+
+inline fun <reified T : Serializable> Intent.serializable(key: String): T = when {
+    Build.VERSION.SDK_INT >= 33 -> getSerializableExtra(key, T::class.java)!!
+    else -> @Suppress("DEPRECATION") getSerializableExtra(key) as T
+}
+
+inline fun <reified T : Serializable> Intent.nullableSerializable(key: String): T? = when {
+    Build.VERSION.SDK_INT >= 33 -> getSerializableExtra(key, T::class.java)
+    else -> @Suppress("DEPRECATION") getSerializableExtra(key) as T?
+}

app/src/main/java/io/github/wulkanowy/utils/IntentUtils.kt

@@ -1,11 +1,15 @@
 package io.github.wulkanowy.utils
 
+import android.app.Activity
 import android.content.ActivityNotFoundException
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
+import android.os.Build
 import android.provider.CalendarContract
+import android.provider.Settings
 import io.github.wulkanowy.BuildConfig
+import timber.log.Timber
 import java.time.LocalDateTime
 import java.time.ZoneId
 
@@ -86,6 +90,23 @@ fun Context.openDialer(phone: String) {
     }
 }
 
+fun Activity.openNotificationSettings() {
+    val intent = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+        Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS).apply {
+            putExtra("android.provider.extra.APP_PACKAGE", packageName)
+        }
+    } else {
+        Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS).apply {
+            data = Uri.fromParts("package", packageName, null)
+        }
+    }
+    try {
+        startActivity(intent)
+    } catch (e: Exception) {
+        Timber.e(e)
+    }
+}
+
 fun Context.shareText(text: String, subject: String?) {
     val sendIntent: Intent = Intent().apply {
         action = Intent.ACTION_SEND

app/src/main/java/io/github/wulkanowy/utils/RemoteConfigDefaults.kt

@@ -0,0 +1,8 @@
+package io.github.wulkanowy.utils
+
+enum class RemoteConfigDefaults(val value: Any) {
+    USER_AGENT_TEMPLATE(""),
+    ;
+
+    val key get() = name.lowercase()
+}

app/src/main/java/io/github/wulkanowy/utils/StringExtension.kt

@@ -1,7 +1,15 @@
 package io.github.wulkanowy.utils
 
+import androidx.core.text.parseAsHtml
+import org.apache.commons.text.StringEscapeUtils
+
 inline fun String?.ifNullOrBlank(defaultValue: () -> String) =
     if (isNullOrBlank()) defaultValue() else this
 
 fun String.capitalise() =
-    replaceFirstChar { if (it.isLowerCase()) it.titlecase() else it.toString() }
+    replaceFirstChar { if (it.isLowerCase()) it.titlecase() else it.toString() }
+
+fun String.parseUonetHtml() = this
+    .let(StringEscapeUtils::unescapeHtml4)
+    .replace("\n", "<br/>")
+    .parseAsHtml()

app/src/main/play/release-notes/pl-PL/default.txt

@@ -1,8 +1,7 @@
-Wersja 1.8.3
+Wersja 1.9.2
 
-- naprawiliśmy logowanie dla użytkowników systemu Resman Rzeszów
-- dodaliśmy wsparcie dla nowej platformy z Tomaszowa Mazowieckiego
-- poprawiliśmy dopasowywanie skrzynek pocztowych do uczniów
-- naprawiliśmy literówkę w tytule wiadomości z szablonem usprawiedliwienia
+- naprawiliśmy oznaczanie wiadomości jako odczytanych (problem dotyczył głównie kont rodziców z wieloma dziećmi w tej samej szkole)
+- naprawiliśmy zapisywanie załączników do wiadomości w sytuacji, gdy ten sam załącznik był dodany do więcej niż jednej wiadomości
+- usprawniliśmy ekran z wyborem uczniów i wpisywaniem symbolu przy pierwszym logowaniu
 
 Pełna lista zmian: https://github.com/wulkanowy/wulkanowy/releases

app/src/main/res/drawable/ic_launcher_foreground_dev_mono.xml

@@ -0,0 +1,20 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="1926"
+    android:viewportHeight="1926">
+    <path
+        android:fillColor="#fff"
+        android:pathData="M920,1357.7v-184.5h42.7q19.3,0.3 34.3,6.6 15.2,6.2 25.6,17.5 10.6,11.2 16,26.9 5.6,15.6 5.7, 34.6v13.5q-0.1,19 -5.7,34.7 -5.4,15.6 -16,26.9 -10.4,11.2 -25.6,17.5 -15,6.2 -34.3,6.3zM943.8,1192.5v146.1h18.9q15, -0.1 25.8,-5.2 11,-5.2 18,-14 7.3,-9 10.7,-21 3.5,-12 3.6,-26v-13.9q0,-14 -3.6,-26t-10.7,-20.7q-7,-9 -18,-14 -10.9,-5 -25.8,-5.3zM1179.5,1272.5h-77v65.4h89.8v19.9L1079,1357.8v-184.6h112.2v20h-88.7v59.4h77zM1288.9, 1320l43.6,-146.8h25l-58.2,184.6h-20.4l-58.3,-184.6h25z"
+        android:strokeWidth="1"
+        android:strokeColor="#000" />
+    <clip-path android:pathData="M 0 0 L 1926 0 L 1926 1111 L 850 1111 L 850 1926 L 0 1926 z" />
+
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1082,1260v4l-6,73c0,5 -5,9 -10,9H879c-4,0 -8,-2 -10,-5l-31,-58 -29,-71v-8l48,-94c2,-3 2,-5 1, -8l-24,-65c-1,-2 0,-5 1,-7l39,-84c4,-8 17,-8 20,1l12,38 38,101c1,2 3,5 6,6l80,27c3,1 6,3 7,6l45,135zM852,717c0,-23 15,-43 35,-52l-2,-8c0,-11 13,-20 29,-20h1a38,38 0,0 1,36 -18l3,-2c11,-16 37,-27 68,-27 12,0 23,2 32,4 3,-3 8,-6 14,-6s12,3 14,8c8,-9 22,-16 38,-16 25,0 45,16 45,36l-1,7 3,4c16,6 27,17 27,30 0,14 -15,27 -34,32 -2,0 -3,1 -3,3 0,11 -11,21 -26,22v1c0,22 -41,40 -92,40 -11,0 -21,-1 -31,-3v1c0,9 -12,16 -26,16h-2l2,7c0,14 -18,25 -40,25h-7l-4, 2c-2,7 -8,12 -15,12 -9,0 -16,-7 -16,-16 0,-5 1,-8 4,-11l1,-4c-2,-3 -2,-5 -2,-8 0,-2 -2,-3 -3,-3 -27,-6 -48,-29 -48,-56z" />
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1336,1346h-125c-3,0 -6,-1 -8,-4l-84,-118 -1,-2 -42,-122 -5,-5 -102,-52 -5,-6 -15,-75 -2,-3 -34,-51c-2,-3 -2,-6 -1,-9l21,-45c2,-4 5,-6 9,-6l39,-2c3,0 5,-1 6,-3l29,-22c5,-4 14,-2 17,4l98,201 1,2 13,81 2,5 197,216c6,6 1,16 -8,16zM801,1302c1,3 1,6 -1,8l-19,31c-2,3 -5,5 -9,5H591c-8,0 -13,-8 -9,-15l116,-171 2,-3 53, -228c1,-3 3,-5 5,-6l72,-40c3,-1 5,-4 5,-7l10,-42c2,-9 15,-11 20,-3l3,6c2,2 2,5 1,8l-66,190v5l16,91v5l-40,88v6l22,72z" />
+
+</vector>

app/src/main/res/drawable/ic_launcher_foreground_mono.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="1926"
+    android:viewportHeight="1926">
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1082,1260v4l-6,73c0,5 -5,9 -10,9H879c-4,0 -8,-2 -10,-5l-31,-58 -29,-71v-8l48,-94c2,-3 2,-5 1, -8l-24,-65c-1,-2 0,-5 1,-7l39,-84c4,-8 17,-8 20,1l12,38 38,101c1,2 3,5 6,6l80,27c3,1 6,3 7,6l45,135zM852,717c0,-23 15,-43 35,-52l-2,-8c0,-11 13,-20 29,-20h1a38,38 0,0 1,36 -18l3,-2c11,-16 37,-27 68,-27 12,0 23,2 32,4 3,-3 8,-6 14,-6s12,3 14,8c8,-9 22,-16 38,-16 25,0 45,16 45,36l-1,7 3,4c16,6 27,17 27,30 0,14 -15,27 -34,32 -2,0 -3,1 -3,3 0,11 -11,21 -26,22v1c0,22 -41,40 -92,40 -11,0 -21,-1 -31,-3v1c0,9 -12,16 -26,16h-2l2,7c0,14 -18,25 -40,25h-7l-4, 2c-2,7 -8,12 -15,12 -9,0 -16,-7 -16,-16 0,-5 1,-8 4,-11l1,-4c-2,-3 -2,-5 -2,-8 0,-2 -2,-3 -3,-3 -27,-6 -48,-29 -48,-56z" />
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1336,1346h-125c-3,0 -6,-1 -8,-4l-84,-118 -1,-2 -42,-122 -5,-5 -102,-52 -5,-6 -15,-75 -2,-3 -34,-51c-2,-3 -2,-6 -1,-9l21,-45c2,-4 5,-6 9,-6l39,-2c3,0 5,-1 6,-3l29,-22c5,-4 14,-2 17,4l98,201 1,2 13,81 2,5 197,216c6,6 1,16 -8,16zM801,1302c1,3 1,6 -1,8l-19,31c-2,3 -5,5 -9,5H591c-8,0 -13,-8 -9,-15l116,-171 2,-3 53, -228c1,-3 3,-5 5,-6l72,-40c3,-1 5,-4 5,-7l10,-42c2,-9 15,-11 20,-3l3,6c2,2 2,5 1,8l-66,190v5l16,91v5l-40,88v6l22,72z" />
+</vector>

app/src/main/res/layout/dialog_conference.xml

@@ -40,7 +40,7 @@
             android:layout_marginStart="0dp"
             android:layout_marginTop="28dp"
             android:layout_marginEnd="24dp"
-            android:text="@string/all_title"
+            android:text="@string/conference_place"
             android:textColor="?android:textColorSecondary"
             android:textSize="12sp"
             app:layout_constraintEnd_toEndOf="parent"
@@ -71,7 +71,7 @@
             android:layout_marginStart="0dp"
             android:layout_marginTop="16dp"
             android:layout_marginEnd="24dp"
-            android:text="@string/all_subject"
+            android:text="@string/conference_topic"
             android:textColor="?android:textColorSecondary"
             android:textSize="12sp"
             app:layout_constraintEnd_toEndOf="parent"

app/src/main/res/layout/fragment_account_details.xml

@@ -111,9 +111,11 @@
 
                 <TextView
                     android:id="@+id/accountDetailsName"
-                    android:layout_width="wrap_content"
+                    android:layout_width="0dp"
                     android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="16dp"
                     android:layout_marginTop="16dp"
+                    android:gravity="center_horizontal"
                     android:textSize="24sp"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
@@ -122,9 +124,11 @@
 
                 <TextView
                     android:id="@+id/accountDetailsSchool"
-                    android:layout_width="wrap_content"
+                    android:layout_width="0dp"
                     android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="16dp"
                     android:layout_marginTop="5dp"
+                    android:gravity="center_horizontal"
                     android:textColor="?android:textColorSecondary"
                     android:textSize="14sp"
                     app:layout_constraintEnd_toEndOf="parent"

app/src/main/res/layout/fragment_login_student_select.xml

@@ -3,92 +3,14 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <com.google.android.material.progressindicator.CircularProgressIndicator
-        android:id="@+id/loginStudentSelectProgress"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:indeterminate="true"
-        android:visibility="gone" />
+    android:orientation="vertical"
+    tools:context=".ui.modules.login.studentselect.LoginStudentSelectFragment">
 
     <androidx.constraintlayout.widget.ConstraintLayout
         android:id="@+id/loginStudentSelectContent"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
-        <LinearLayout
-            android:id="@+id/loginStudentSelectContact"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="vertical"
-            android:visibility="gone"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent"
-            tools:visibility="visible">
-
-            <View
-                android:id="@+id/loginStudentSelectContactTopDivider"
-                android:layout_width="match_parent"
-                android:layout_height="1dp"
-                android:background="?android:attr/listDivider" />
-
-            <TextView
-                android:id="@+id/loginStudentSelectContactHeader"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginStart="32dp"
-                android:layout_marginLeft="32dp"
-                android:layout_marginTop="16dp"
-                android:layout_marginEnd="32dp"
-                android:layout_marginRight="32dp"
-                android:layout_marginBottom="16dp"
-                android:gravity="center_horizontal"
-                android:text="@string/login_contact_header"
-                android:textSize="14sp"
-                app:fontFamily="sans-serif-medium" />
-
-            <LinearLayout
-                android:id="@+id/loginStudentSelectContactButtons"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginLeft="16dp"
-                android:layout_marginRight="16dp"
-                android:orientation="horizontal">
-
-                <com.google.android.material.button.MaterialButton
-                    android:id="@+id/loginStudentSelectContactEmail"
-                    style="@style/Widget.MaterialComponents.Button.OutlinedButton"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginEnd="8dp"
-                    android:layout_marginRight="8dp"
-                    android:layout_weight="1"
-                    android:text="@string/login_contact_email"
-                    app:icon="@drawable/ic_more_messages" />
-
-                <com.google.android.material.button.MaterialButton
-                    android:id="@+id/loginStudentSelectContactDiscord"
-                    style="@style/Widget.MaterialComponents.Button.OutlinedButton"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginStart="8dp"
-                    android:layout_marginLeft="8dp"
-                    android:layout_weight="1"
-                    android:text="@string/login_contact_discord"
-                    app:icon="@drawable/ic_about_discord" />
-            </LinearLayout>
-
-            <View
-                android:id="@+id/loginStudentSelectContactBottomDivider"
-                android:layout_width="match_parent"
-                android:layout_height="1dp"
-                android:layout_marginTop="8dp"
-                android:background="?android:attr/listDivider" />
-        </LinearLayout>
-
         <TextView
             android:id="@+id/loginStudentSelectHeader"
             android:layout_width="match_parent"
@@ -106,22 +28,24 @@
             app:layout_constraintBottom_toTopOf="@id/loginStudentSelectRecycler"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/loginStudentSelectContact"
+            app:layout_constraintTop_toTopOf="parent"
             app:layout_constraintVertical_chainStyle="packed" />
 
         <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/loginStudentSelectRecycler"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:minHeight="144dp"
+            android:fadingEdge="vertical"
+            android:fadingEdgeLength="100dp"
+            android:requiresFadingEdge="vertical"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
             app:layout_constrainedHeight="true"
             app:layout_constraintBottom_toTopOf="@id/loginStudentSelectSignIn"
             app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintHeight_max="432dp"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/loginStudentSelectHeader"
-            tools:itemCount="6"
-            tools:listitem="@layout/item_login_student_select" />
+            tools:itemCount="33"
+            tools:listitem="@layout/item_login_student_select_student" />
 
         <com.google.android.material.button.MaterialButton
             android:id="@+id/loginStudentSelectSignIn"
@@ -136,4 +60,12 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintTop_toBottomOf="@id/loginStudentSelectRecycler" />
     </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <com.google.android.material.progressindicator.CircularProgressIndicator
+        android:id="@+id/loginStudentSelectProgress"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:indeterminate="true"
+        android:visibility="gone" />
 </FrameLayout>

app/src/main/res/layout/fragment_notifications.xml

@@ -0,0 +1,69 @@
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.modules.notifications.NotificationsFragment">
+
+    <ImageView
+        android:id="@+id/notifications_header_icon"
+        android:layout_width="64dp"
+        android:layout_height="64dp"
+        android:layout_marginTop="32dp"
+        android:src="@drawable/ic_settings_notifications"
+        app:layout_constraintBottom_toTopOf="@id/notifications_header_title"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.4"
+        app:layout_constraintVertical_chainStyle="packed"
+        tools:ignore="ContentDescription" />
+
+    <TextView
+        android:id="@+id/notifications_header_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="24dp"
+        android:layout_marginVertical="16dp"
+        android:gravity="center_horizontal"
+        android:text="@string/notifications_header_title"
+        android:textColor="?android:textColorPrimary"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toTopOf="@id/notifications_header_description"
+        app:layout_constraintTop_toBottomOf="@id/notifications_header_icon"
+        app:lineHeight="30sp" />
+
+    <TextView
+        android:id="@+id/notifications_header_description"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="24dp"
+        android:gravity="center_horizontal"
+        android:text="@string/notifications_header_description"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="16sp"
+        app:layout_constraintBottom_toTopOf="@id/notifications_skip"
+        app:layout_constraintTop_toBottomOf="@id/notifications_header_title"
+        app:lineHeight="24sp" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/notifications_skip"
+        style="@style/Widget.MaterialComponents.Button.TextButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:text="@string/notifications_skip"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/notifications_enable"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:text="@string/notifications_enable"
+        app:icon="@drawable/ic_settings_notifications"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_dashboard_account.xml

@@ -26,27 +26,31 @@
 
         <TextView
             android:id="@+id/dashboard_account_item_name"
-            android:layout_width="wrap_content"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
             android:layout_marginTop="16dp"
+            android:layout_marginEnd="16dp"
             android:textSize="16sp"
+            app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/dashboard_account_item_avatar"
             app:layout_constraintTop_toTopOf="parent"
             tools:text="John Smith" />
 
         <TextView
             android:id="@+id/dashboard_account_item_school_name"
-            android:layout_width="wrap_content"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
             android:layout_marginBottom="16dp"
             android:textColor="?android:textColorSecondary"
             android:textSize="12sp"
             app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/dashboard_account_item_avatar"
             app:layout_constraintTop_toBottomOf="@id/dashboard_account_item_name"
-            tools:text="Szkoła Wulkanowego " />
+            tools:text="Szkoła Wulkanowego" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 
     <com.google.android.material.progressindicator.CircularProgressIndicator
@@ -56,4 +60,4 @@
         android:layout_gravity="center"
         android:indeterminate="true"
         android:visibility="gone" />
-</com.google.android.material.card.MaterialCardView>
+</com.google.android.material.card.MaterialCardView>

app/src/main/res/layout/item_login_student_select_empty_symbol_header.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="8dp"
+    android:background="?selectableItemBackground"
+    android:paddingHorizontal="16dp">
+
+    <com.google.android.material.divider.MaterialDivider
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/login_student_select_empty_symbol_header"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingVertical="16dp"
+        android:text="@string/login_other_search_locations"
+        android:textColor="?android:textColorPrimary"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <ImageView
+        android:id="@+id/login_student_select_empty_symbol_chevron"
+        android:layout_width="16dp"
+        android:layout_height="16dp"
+        android:layout_marginEnd="16dp"
+        android:rotation="90"
+        android:src="@drawable/ic_chevron_right"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:tint="?android:textColorPrimary"
+        tools:ignore="ContentDescription" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_login_student_select_header_school.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingHorizontal="24dp"
+    android:paddingVertical="8dp">
+
+    <TextView
+        android:id="@+id/login_student_select_header_school_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textColor="?android:textColorPrimary"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="Publiczna szkoła Wulkanowego" />
+
+    <TextView
+        android:id="@+id/login_student_select_header_school_details"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        android:text="@string/login_no_active_student"
+        android:textColor="?colorTimetableChange"
+        app:layout_constraintTop_toBottomOf="@id/login_student_select_header_school_name" />
+
+    <TextView
+        android:id="@+id/login_student_select_header_school_error"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        android:ellipsize="end"
+        android:maxLines="2"
+        android:textColor="?colorError"
+        app:layout_constraintTop_toBottomOf="@id/login_student_select_header_school_details"
+        tools:text="@tools:sample/lorem/random" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_login_student_select_header_symbol.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingHorizontal="16dp"
+    android:paddingVertical="8dp">
+
+    <TextView
+        android:id="@+id/login_student_select_header_symbol_value"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textColor="?android:textColorPrimary"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="powiatjaroslawski" />
+
+    <TextView
+        android:id="@+id/login_student_select_header_symbol_username"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        android:textColor="?android:textColorSecondary"
+        app:layout_constraintTop_toBottomOf="@id/login_student_select_header_symbol_value"
+        tools:text="Jan Kowalski" />
+
+    <TextView
+        android:id="@+id/login_student_select_header_symbol_error"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="2dp"
+        android:ellipsize="end"
+        android:maxLines="2"
+        android:textColor="?colorError"
+        app:layout_constraintTop_toBottomOf="@id/login_student_select_header_symbol_username"
+        tools:text="@tools:sample/lorem/random" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_login_student_select_help.xml

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingHorizontal="16dp"
+    android:paddingVertical="8dp">
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/login_student_select_help_symbol"
+        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:text="@string/login_symbol_enter"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:visibility="visible" />
+
+    <TextView
+        android:id="@+id/login_student_select_help_title"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:text="@string/login_contact_header"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@id/login_student_select_help_mail"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/login_student_select_help_symbol" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/login_student_select_help_mail"
+        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:contentDescription="@string/login_contact_email"
+        app:icon="@drawable/ic_more_messages"
+        app:iconGravity="textStart"
+        app:iconPadding="0dp"
+        app:layout_constraintEnd_toEndOf="@id/login_student_select_help_title"
+        app:layout_constraintHorizontal_chainStyle="packed"
+        app:layout_constraintStart_toEndOf="@id/login_student_select_help_title"
+        app:layout_constraintTop_toBottomOf="@id/login_student_select_help_symbol" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/login_student_select_help_discord"
+        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:contentDescription="@string/login_contact_discord"
+        app:icon="@drawable/ic_about_discord"
+        app:iconGravity="textStart"
+        app:iconPadding="0dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@id/login_student_select_help_mail"
+        app:layout_constraintTop_toTopOf="@id/login_student_select_help_mail" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_login_student_select_student.xml

@@ -4,7 +4,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:background="?selectableItemBackground"
-    android:minHeight="72dp"
+    android:minHeight="56dp"
     android:paddingTop="8dp"
     android:paddingBottom="8dp"
     tools:context=".ui.modules.login.studentselect.LoginStudentSelectAdapter">
@@ -14,9 +14,10 @@
         android:layout_width="32dp"
         android:layout_height="24dp"
         android:layout_centerVertical="true"
-        android:layout_marginStart="12dp"
+        android:layout_marginStart="32dp"
         android:layout_marginEnd="28dp"
         android:background="@android:color/transparent"
+        android:clickable="false"
         tools:text=" " />
 
     <TextView
@@ -32,34 +33,18 @@
         tools:text="@tools:sample/full_names" />
 
     <TextView
-        android:id="@+id/loginItemSchool"
+        android:id="@+id/loginItemSignedIn"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@id/loginItemName"
         android:layout_marginEnd="16dp"
         android:layout_toEndOf="@id/loginItemCheck"
         android:ellipsize="end"
-        android:gravity="bottom"
-        android:maxLines="2"
-        android:textColor="?android:textColorSecondary"
-        android:textSize="14sp"
-        tools:text="@tools:sample/lorem/random" />
-
-    <TextView
-        android:id="@+id/loginItemSignedIn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:minHeight="20dp"
-        android:layout_below="@id/loginItemSchool"
-        android:layout_marginEnd="16dp"
-        android:layout_toEndOf="@id/loginItemCheck"
-        android:ellipsize="end"
         android:enabled="false"
         android:gravity="bottom"
         android:maxLines="1"
+        android:minHeight="20dp"
         android:text="@string/login_signed_in"
         android:textColor="?android:textColorSecondary"
-        android:textSize="14sp"
-        android:visibility="gone"
-        tools:visibility="visible" />
+        android:textSize="14sp" />
 </RelativeLayout>

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

@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/colorPrimary" />
     <foreground android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
+    <monochrome android:drawable="@drawable/ic_launcher_foreground_mono" />
+</adaptive-icon>

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

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/colorPrimary" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>