Fix build

Currently translated at 100.0% (876 of 876 strings)

Co-authored-by: Frosted <frosted@users.noreply.hosted.weblate.org>
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/tr/
Translation: Kotatsu/Strings

.github/workflows/trigger-site-deploy.yml

@@ -0,0 +1,16 @@
+name: Trigger Site Update
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  trigger-site:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send repository_dispatch to site-repo
+        uses: peter-evans/repository-dispatch@v3
+        with:
+          token: ${{ secrets.SITE_REPO_TOKEN }}
+          repository: KotatsuApp/website
+          event-type: app-release

.gitignore

@@ -6,6 +6,7 @@
 /.idea/dictionaries
 /.idea/modules.xml
 /.idea/misc.xml
+/.idea/markdown.xml
 /.idea/discord.xml
 /.idea/compiler.xml
 /.idea/workspace.xml
@@ -26,4 +27,4 @@
 .cxx
 /.idea/deviceManager.xml
 /.kotlin/
-/.idea/AndroidProjectSystem.xml
+/.idea/AndroidProjectSystem.xml

.idea/.gitignore

@@ -3,3 +3,5 @@
 /workspace.xml
 /migrations.xml
 /runConfigurations.xml
+/appInsightsSettings.xml
+/kotlinCodeInsightSettings.xml

.idea/appInsightsSettings.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AppInsightsSettings">
+    <option name="tabSettings">
+      <map>
+        <entry key="Firebase Crashlytics">
+          <value>
+            <InsightsFilterSettings>
+              <option name="connection">
+                <ConnectionSetting>
+                  <option name="appId" value="PLACEHOLDER" />
+                  <option name="mobileSdkAppId" value="" />
+                  <option name="projectId" value="" />
+                  <option name="projectNumber" value="" />
+                </ConnectionSetting>
+              </option>
+              <option name="signal" value="SIGNAL_UNSPECIFIED" />
+              <option name="timeIntervalDays" value="THIRTY_DAYS" />
+              <option name="visibilityType" value="ALL" />
+            </InsightsFilterSettings>
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
+</project>

.idea/gradle.xml

@@ -6,7 +6,7 @@
       <GradleProjectSettings>
         <option name="testRunner" value="CHOOSE_PER_TEST" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="jbr-21" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
@@ -16,4 +16,4 @@
       </GradleProjectSettings>
     </option>
   </component>
-</project>
+</project>

.idea/vcs.xml

@@ -10,6 +10,6 @@
     </option>
   </component>
   <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+    <mapping directory="" vcs="Git" />
   </component>
 </project>

README.md

@@ -8,7 +8,7 @@
 
 **[Kotatsu](https://github.com/KotatsuApp/Kotatsu) is a free and open-source manga reader for Android with built-in online content sources.**
 
-![Downloads count](https://img.shields.io/github/downloads/KotatsuApp/Kotatsu/total?color=1976d2) ![Latest Stable version](https://img.shields.io/github/v/release/KotatsuApp/Kotatsu?color=2596be&label=latest) ![Android 5.0](https://img.shields.io/badge/android-5.0+-brightgreen) [![Sources count](https://img.shields.io/badge/dynamic/yaml?url=https%3A%2F%2Fraw.githubusercontent.com%2FKotatsuApp%2Fkotatsu-parsers%2Frefs%2Fheads%2Fmaster%2F.github%2Fsummary.yaml&query=total&label=manga%20sources&color=%23E9321C)](https://github.com/KotatsuApp/kotatsu-parsers) [![weblate](https://hosted.weblate.org/widgets/kotatsu/-/strings/svg-badge.svg)](https://hosted.weblate.org/engage/kotatsu/) [![Discord](https://img.shields.io/discord/898363402467045416?color=5865f2&label=discord)](https://discord.gg/NNJ5RgVBC5) [![Telegram](https://img.shields.io/badge/chat-telegram-60ACFF?)](https://t.me/kotatsuapp) [![License](https://img.shields.io/github/license/KotatsuApp/Kotatsu)](https://github.com/KotatsuApp/Kotatsu/blob/devel/LICENSE)
+![Downloads count](https://img.shields.io/github/downloads/KotatsuApp/Kotatsu/total?color=1976d2) ![Latest Stable version](https://img.shields.io/github/v/release/KotatsuApp/Kotatsu?color=2596be&label=latest) ![Android 6.0](https://img.shields.io/badge/android-6.0+-brightgreen) [![Sources count](https://img.shields.io/badge/dynamic/yaml?url=https%3A%2F%2Fraw.githubusercontent.com%2FKotatsuApp%2Fkotatsu-parsers%2Frefs%2Fheads%2Fmaster%2F.github%2Fsummary.yaml&query=total&label=manga%20sources&color=%23E9321C)](https://github.com/KotatsuApp/kotatsu-parsers) [![weblate](https://hosted.weblate.org/widgets/kotatsu/-/strings/svg-badge.svg)](https://hosted.weblate.org/engage/kotatsu/) [![Discord](https://img.shields.io/discord/898363402467045416?color=5865f2&label=discord)](https://discord.gg/NNJ5RgVBC5) [![Telegram](https://img.shields.io/badge/chat-telegram-60ACFF?)](https://t.me/kotatsuapp) [![License](https://img.shields.io/github/license/KotatsuApp/Kotatsu)](https://github.com/KotatsuApp/Kotatsu/blob/devel/LICENSE)
 
 ### Download
 
@@ -112,6 +112,6 @@ You may copy, distribute and modify the software as long as you track changes/da
 
 <div align="left">
 
-The developers of this application do not have any affiliation with the content available in the app. It collects content from sources that are freely available through any web browser.
+The developers of this application do not have any affiliation with the content available in the app and does not store or distribute any content. This application should be considered a web browser, all content that can be found using this application is freely available on the Internet. All DMCA takedown requests should be sent to the owners of the website where the content is hosted.
 
 </div>

app/build.gradle

@@ -8,19 +8,21 @@ plugins {
 	id 'dagger.hilt.android.plugin'
 	id 'androidx.room'
 	id 'org.jetbrains.kotlin.plugin.serialization'
+	// enable if needed
+	// id 'dev.reformator.stacktracedecoroutinator'
 }
 
 android {
-	compileSdk = 35
+	compileSdk = 36
 	buildToolsVersion = '35.0.0'
 	namespace = 'org.koitharu.kotatsu'
 
 	defaultConfig {
 		applicationId 'org.koitharu.kotatsu'
-		minSdk = 21
-		targetSdk = 35
-		versionCode = 1022
-		versionName = '9.0'
+		minSdk = 23
+		targetSdk = 36
+		versionCode = 1031
+		versionName = '9.3'
 		generatedDensities = []
 		testInstrumentationRunner 'org.koitharu.kotatsu.HiltTestRunner'
 		ksp {
@@ -30,6 +32,12 @@ android {
 			// https://issuetracker.google.com/issues/408030127
 			generateLocaleConfig false
 		}
+		def localProperties = new Properties()
+		def localPropertiesFile = rootProject.file('local.properties')
+		if (localPropertiesFile.exists()) {
+			localProperties.load(new FileInputStream(localPropertiesFile))
+		}
+		resValue 'string', 'tg_backup_bot_token', localProperties.getProperty('tg_backup_bot_token', '')
 	}
 	buildTypes {
 		debug {
@@ -79,6 +87,7 @@ android {
 			'-opt-in=coil3.annotation.InternalCoilApi',
 			'-opt-in=kotlinx.serialization.ExperimentalSerializationApi',
 			'-Xjspecify-annotations=strict',
+			'-Xannotation-default-target=first-only',
 			'-Xtype-enhancement-improvements-strict-mode'
 		]
 	}
@@ -172,6 +181,7 @@ dependencies {
 	implementation libs.ssiv
 	implementation libs.disk.lru.cache
 	implementation libs.markwon
+	implementation libs.kizzyrpc
 
 	implementation libs.acra.http
 	implementation libs.acra.dialog
@@ -179,6 +189,7 @@ dependencies {
 	implementation libs.conscrypt.android
 
 	debugImplementation libs.leakcanary.android
+	nightlyImplementation libs.leakcanary.android
 	debugImplementation libs.workinspector
 
 	testImplementation libs.junit

app/proguard-rules.pro

@@ -8,8 +8,7 @@
 	public static void checkParameterIsNotNull(...);
 	public static void checkNotNullParameter(...);
 }
--keep public class ** extends org.koitharu.kotatsu.core.ui.BaseFragment
--keep class org.koitharu.kotatsu.core.db.entity.* { *; }
+
 -dontwarn okhttp3.internal.platform.**
 -dontwarn org.conscrypt.**
 -dontwarn org.bouncycastle.**
@@ -17,8 +16,10 @@
 -dontwarn com.google.j2objc.annotations.**
 -dontwarn coil3.PlatformContext
 
--keep class org.koitharu.kotatsu.core.exceptions.* { *; }
 -keep class org.koitharu.kotatsu.settings.NotificationSettingsLegacyFragment
+-keep class org.koitharu.kotatsu.settings.about.changelog.ChangelogFragment
+
+-keep class org.koitharu.kotatsu.core.exceptions.* { *; }
 -keep class org.koitharu.kotatsu.core.prefs.ScreenshotsPolicy { *; }
 -keep class org.koitharu.kotatsu.backups.ui.periodical.PeriodicalBackupSettingsFragment { *; }
 -keep class org.jsoup.parser.Tag

app/src/debug/kotlin/org/koitharu/kotatsu/KotatsuApp.kt

@@ -41,8 +41,8 @@ class KotatsuApp : BaseApp() {
 				detectNetwork()
 				detectDiskWrites()
 				detectCustomSlowCalls()
+				detectResourceMismatches()
 				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) detectUnbufferedIo()
-				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) detectResourceMismatches()
 				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) detectExplicitGc()
 				penaltyLog()
 				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P && notifier != null) {
@@ -56,7 +56,9 @@ class KotatsuApp : BaseApp() {
 				detectLeakedSqlLiteObjects()
 				detectLeakedClosableObjects()
 				detectLeakedRegistrationObjects()
-				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) detectContentUriWithoutPermission()
+				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+					detectContentUriWithoutPermission()
+				}
 				detectFileUriExposure()
 				penaltyLog()
 				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P && notifier != null) {

app/src/debug/kotlin/org/koitharu/kotatsu/core/parser/TestMangaRepository.kt

@@ -0,0 +1,57 @@
+package org.koitharu.kotatsu.core.parser
+
+import org.koitharu.kotatsu.core.cache.MemoryContentCache
+import org.koitharu.kotatsu.core.model.TestMangaSource
+import org.koitharu.kotatsu.parsers.MangaLoaderContext
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
+import org.koitharu.kotatsu.parsers.model.MangaListFilterCapabilities
+import org.koitharu.kotatsu.parsers.model.MangaListFilterOptions
+import org.koitharu.kotatsu.parsers.model.MangaPage
+import org.koitharu.kotatsu.parsers.model.SortOrder
+import java.util.EnumSet
+
+/*
+ This class is for parser development and testing purposes
+ You can open it in the app via Settings -> Debug
+ */
+class TestMangaRepository(
+	@Suppress("unused") private val loaderContext: MangaLoaderContext,
+	cache: MemoryContentCache
+) : CachingMangaRepository(cache) {
+
+	override val source = TestMangaSource
+
+	override val sortOrders: Set<SortOrder> = EnumSet.allOf(SortOrder::class.java)
+
+	override var defaultSortOrder: SortOrder
+		get() = sortOrders.first()
+		set(value) = Unit
+
+	override val filterCapabilities = MangaListFilterCapabilities()
+
+	override suspend fun getFilterOptions() = MangaListFilterOptions()
+
+	override suspend fun getList(
+		offset: Int,
+		order: SortOrder?,
+		filter: MangaListFilter?
+	): List<Manga> = TODO("Get manga list by filter")
+
+	override suspend fun getDetailsImpl(
+		manga: Manga
+	): Manga = TODO("Fetch manga details")
+
+	override suspend fun getPagesImpl(
+		chapter: MangaChapter
+	): List<MangaPage> = TODO("Get pages for specific chapter")
+
+	override suspend fun getPageUrl(
+		page: MangaPage
+	): String = TODO("Return direct url of page image or page.url if it is already a direct url")
+
+	override suspend fun getRelatedMangaImpl(
+		seed: Manga
+	): List<Manga> = TODO("Get list of related manga. This method is optional and parser library has a default implementation")
+}

app/src/debug/kotlin/org/koitharu/kotatsu/settings/DebugSettingsFragment.kt

@@ -0,0 +1,72 @@
+package org.koitharu.kotatsu.settings
+
+import android.os.Bundle
+import androidx.preference.Preference
+import leakcanary.LeakCanary
+import org.koitharu.kotatsu.KotatsuApp
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.TestMangaSource
+import org.koitharu.kotatsu.core.nav.router
+import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.settings.utils.SplitSwitchPreference
+import org.koitharu.workinspector.WorkInspector
+
+class DebugSettingsFragment : BasePreferenceFragment(R.string.debug), Preference.OnPreferenceChangeListener,
+	Preference.OnPreferenceClickListener {
+
+	private val application
+		get() = requireContext().applicationContext as KotatsuApp
+
+	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+		addPreferencesFromResource(R.xml.pref_debug)
+		findPreference<SplitSwitchPreference>(KEY_LEAK_CANARY)?.let { pref ->
+			pref.isChecked = application.isLeakCanaryEnabled
+			pref.onPreferenceChangeListener = this
+			pref.onContainerClickListener = this
+		}
+	}
+
+	override fun onResume() {
+		super.onResume()
+		findPreference<SplitSwitchPreference>(KEY_LEAK_CANARY)?.isChecked = application.isLeakCanaryEnabled
+	}
+
+	override fun onPreferenceTreeClick(preference: Preference): Boolean = when (preference.key) {
+		KEY_WORK_INSPECTOR -> {
+			startActivity(WorkInspector.getIntent(preference.context))
+			true
+		}
+
+		KEY_TEST_PARSER -> {
+			router.openList(TestMangaSource, null, null)
+			true
+		}
+
+		else -> super.onPreferenceTreeClick(preference)
+	}
+
+	override fun onPreferenceClick(preference: Preference): Boolean = when (preference.key) {
+		KEY_LEAK_CANARY -> {
+			startActivity(LeakCanary.newLeakDisplayActivityIntent())
+			true
+		}
+
+		else -> super.onPreferenceTreeClick(preference)
+	}
+
+	override fun onPreferenceChange(preference: Preference, newValue: Any?): Boolean = when (preference.key) {
+		KEY_LEAK_CANARY -> {
+			application.isLeakCanaryEnabled = newValue as Boolean
+			true
+		}
+
+		else -> false
+	}
+
+	private companion object {
+
+		const val KEY_LEAK_CANARY = "leak_canary"
+		const val KEY_WORK_INSPECTOR = "work_inspector"
+		const val KEY_TEST_PARSER = "test_parser"
+	}
+}

app/src/debug/kotlin/org/koitharu/kotatsu/settings/SettingsMenuProvider.kt

@@ -1,58 +0,0 @@
-package org.koitharu.kotatsu.settings
-
-import android.content.Context
-import android.view.Menu
-import android.view.MenuInflater
-import android.view.MenuItem
-import androidx.core.view.MenuProvider
-import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
-import leakcanary.LeakCanary
-import org.koitharu.kotatsu.KotatsuApp
-import org.koitharu.kotatsu.R
-import org.koitharu.workinspector.WorkInspector
-
-class SettingsMenuProvider(
-	private val context: Context,
-) : MenuProvider {
-
-	private val application: KotatsuApp
-		get() = context.applicationContext as KotatsuApp
-
-	override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
-		menuInflater.inflate(R.menu.opt_settings, menu)
-	}
-
-	override fun onPrepareMenu(menu: Menu) {
-		super.onPrepareMenu(menu)
-		menu.findItem(R.id.action_leakcanary).isChecked = application.isLeakCanaryEnabled
-		menu.findItem(R.id.action_ssiv_debug).isChecked = SubsamplingScaleImageView.isDebug
-	}
-
-	override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
-		R.id.action_leaks -> {
-			context.startActivity(LeakCanary.newLeakDisplayActivityIntent())
-			true
-		}
-
-		R.id.action_works -> {
-			context.startActivity(WorkInspector.getIntent(context))
-			true
-		}
-
-		R.id.action_leakcanary -> {
-			val checked = !menuItem.isChecked
-			menuItem.isChecked = checked
-			application.isLeakCanaryEnabled = checked
-			true
-		}
-
-		R.id.action_ssiv_debug -> {
-			val checked = !menuItem.isChecked
-			menuItem.isChecked = checked
-			SubsamplingScaleImageView.isDebug = checked
-			true
-		}
-
-		else -> false
-	}
-}

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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	android:width="24dp"
+	android:height="24dp"
+	android:tint="?attr/colorControlNormal"
+	android:viewportWidth="24"
+	android:viewportHeight="24">
+	<path
+		android:fillColor="#000"
+		android:pathData="M20,8H17.19C16.74,7.2 16.12,6.5 15.37,6L17,4.41L15.59,3L13.42,5.17C12.96,5.06 12.5,5 12,5C11.5,5 11.05,5.06 10.59,5.17L8.41,3L7,4.41L8.62,6C7.87,6.5 7.26,7.21 6.81,8H4V10H6.09C6.03,10.33 6,10.66 6,11V12H4V14H6V15C6,15.34 6.03,15.67 6.09,16H4V18H6.81C8.47,20.87 12.14,21.84 15,20.18C15.91,19.66 16.67,18.9 17.19,18H20V16H17.91C17.97,15.67 18,15.34 18,15V14H20V12H18V11C18,10.66 17.97,10.33 17.91,10H20V8M16,15A4,4 0 0,1 12,19A4,4 0 0,1 8,15V11A4,4 0 0,1 12,7A4,4 0 0,1 16,11V15M14,10V12H10V10H14M10,14H14V16H10V14Z" />
+</vector>

app/src/debug/res/menu/opt_settings.xml

@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu
-	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">
-
-	<item
-		android:id="@+id/action_ssiv_debug"
-		android:checkable="true"
-		android:title="SSIV debug"
-		app:showAsAction="never"
-		tools:ignore="HardcodedText" />
-	<item
-		android:id="@+id/action_leakcanary"
-		android:checkable="true"
-		android:title="LeakCanary"
-		app:showAsAction="never"
-		tools:ignore="HardcodedText" />
-
-	<item
-		android:id="@+id/action_leaks"
-		android:title="@string/leak_canary_display_activity_label"
-		app:showAsAction="never" />
-
-	<item
-		android:id="@+id/action_works"
-		android:title="@string/wi_lib_name"
-		app:showAsAction="never" />
-
-</menu>

app/src/debug/res/xml/pref_debug.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.preference.PreferenceScreen
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto">
+
+	<org.koitharu.kotatsu.settings.utils.SplitSwitchPreference
+		android:key="leak_canary"
+		android:persistent="false"
+		android:title="LeakCanary" />
+
+	<Preference
+		android:key="work_inspector"
+		android:persistent="false"
+		android:title="@string/wi_lib_name" />
+
+	<Preference
+		android:key="test_parser"
+		android:persistent="false"
+		android:title="@string/test_parser"
+		app:allowDividerAbove="true" />
+
+
+</androidx.preference.PreferenceScreen>

app/src/debug/res/xml/pref_root_debug.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.preference.PreferenceScreen
+	xmlns:android="http://schemas.android.com/apk/res/android">
+
+	<PreferenceScreen
+		android:fragment="org.koitharu.kotatsu.settings.DebugSettingsFragment"
+		android:icon="@drawable/ic_debug"
+		android:key="debug"
+		android:title="@string/debug" />
+
+</androidx.preference.PreferenceScreen>

app/src/main/AndroidManifest.xml

@@ -51,9 +51,11 @@
 		android:backupAgent="org.koitharu.kotatsu.backups.domain.AppBackupAgent"
 		android:dataExtractionRules="@xml/backup_rules"
 		android:enableOnBackInvokedCallback="@bool/is_predictive_back_enabled"
+		android:extractNativeLibs="true"
 		android:fullBackupContent="@xml/backup_content"
 		android:fullBackupOnly="true"
 		android:hasFragileUserData="true"
+		android:restoreAnyVersion="true"
 		android:icon="@mipmap/ic_launcher"
 		android:label="@string/app_name"
 		android:largeHeap="true"
@@ -287,6 +289,9 @@
 				<data android:mimeType="image/*" />
 			</intent-filter>
 		</activity>
+		<activity
+			android:name="org.koitharu.kotatsu.scrobbling.discord.ui.DiscordAuthActivity"
+			android:label="@string/discord" />
 
 		<service
 			android:name="androidx.work.impl.foreground.SystemForegroundService"
@@ -404,6 +409,13 @@
 				tools:node="remove" />
 		</provider>
 
+		<receiver
+			android:name="org.koitharu.kotatsu.core.exceptions.resolve.CaptchaHandler$DiscardReceiver"
+			android:exported="false">
+			<intent-filter>
+				<action android:name="org.koitharu.kotatsu.CAPTCHA_DISCARD" />
+			</intent-filter>
+		</receiver>
 		<receiver
 			android:name="org.koitharu.kotatsu.widget.shelf.ShelfWidgetProvider"
 			android:exported="true"

app/src/main/kotlin/org/koitharu/kotatsu/alternatives/domain/MigrateUseCase.kt

@@ -30,21 +30,19 @@ constructor(
 		oldManga: Manga,
 		newManga: Manga,
 	) {
-		val oldDetails =
-			if (oldManga.chapters.isNullOrEmpty()) {
-				runCatchingCancellable {
-					mangaRepositoryFactory.create(oldManga.source).getDetails(oldManga)
-				}.getOrDefault(oldManga)
-			} else {
-				oldManga
-			}
-		val newDetails =
-			if (newManga.chapters.isNullOrEmpty()) {
-				mangaRepositoryFactory.create(newManga.source).getDetails(newManga)
-			} else {
-				newManga
-			}
-		mangaDataRepository.storeManga(newDetails)
+		val oldDetails = if (oldManga.chapters.isNullOrEmpty()) {
+			runCatchingCancellable {
+				mangaRepositoryFactory.create(oldManga.source).getDetails(oldManga)
+			}.getOrDefault(oldManga)
+		} else {
+			oldManga
+		}
+		val newDetails = if (newManga.chapters.isNullOrEmpty()) {
+			mangaRepositoryFactory.create(newManga.source).getDetails(newManga)
+		} else {
+			newManga
+		}
+		mangaDataRepository.storeManga(newDetails, replaceExisting = true)
 		database.withTransaction {
 			// replace favorites
 			val favoritesDao = database.getFavouritesDao()
@@ -101,11 +99,11 @@ constructor(
 					mangaId = newDetails.id,
 					rating = prevInfo.rating,
 					status =
-					prevInfo.status ?: when {
-						newHistory == null -> ScrobblingStatus.PLANNED
-						newHistory.percent == 1f -> ScrobblingStatus.COMPLETED
-						else -> ScrobblingStatus.READING
-					},
+						prevInfo.status ?: when {
+							newHistory == null -> ScrobblingStatus.PLANNED
+							newHistory.percent == 1f -> ScrobblingStatus.COMPLETED
+							else -> ScrobblingStatus.READING
+						},
 					comment = prevInfo.comment,
 				)
 				if (newHistory != null) {

app/src/main/kotlin/org/koitharu/kotatsu/alternatives/ui/AutoFixService.kt

@@ -17,6 +17,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.runBlocking
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.alternatives.domain.AutoFixUseCase
+import org.koitharu.kotatsu.alternatives.domain.AutoFixUseCase.NoAlternativesException
 import org.koitharu.kotatsu.core.ErrorReporterReceiver
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.model.isNsfw
@@ -47,7 +48,7 @@ class AutoFixService : CoroutineIntentService() {
 
 	override fun onCreate() {
 		super.onCreate()
-		notificationManager = NotificationManagerCompat.from(applicationContext)
+		notificationManager = NotificationManagerCompat.from(this)
 	}
 
 	override suspend fun IntentJobContext.processIntent(intent: Intent) {
@@ -58,7 +59,7 @@ class AutoFixService : CoroutineIntentService() {
 				val result = runCatchingCancellable {
 					autoFixUseCase.invoke(mangaId)
 				}
-				if (applicationContext.checkNotificationPermission(CHANNEL_ID)) {
+				if (checkNotificationPermission(CHANNEL_ID)) {
 					val notification = buildNotification(startId, result)
 					notificationManager.notify(TAG, startId, notification)
 				}
@@ -67,7 +68,7 @@ class AutoFixService : CoroutineIntentService() {
 	}
 
 	override fun IntentJobContext.onError(error: Throwable) {
-		if (applicationContext.checkNotificationPermission(CHANNEL_ID)) {
+		if (checkNotificationPermission(CHANNEL_ID)) {
 			val notification = runBlocking { buildNotification(startId, Result.failure(error)) }
 			notificationManager.notify(TAG, startId, notification)
 		}
@@ -75,7 +76,7 @@ class AutoFixService : CoroutineIntentService() {
 
 	@SuppressLint("InlinedApi")
 	private fun startForeground(jobContext: IntentJobContext) {
-		val title = applicationContext.getString(R.string.fixing_manga)
+		val title = getString(R.string.fixing_manga)
 		val channel = NotificationChannelCompat.Builder(CHANNEL_ID, NotificationManagerCompat.IMPORTANCE_MIN)
 			.setName(title)
 			.setShowBadge(false)
@@ -85,7 +86,7 @@ class AutoFixService : CoroutineIntentService() {
 			.build()
 		notificationManager.createNotificationChannel(channel)
 
-		val notification = NotificationCompat.Builder(applicationContext, CHANNEL_ID)
+		val notification = NotificationCompat.Builder(this, CHANNEL_ID)
 			.setContentTitle(title)
 			.setPriority(NotificationCompat.PRIORITY_MIN)
 			.setDefaults(0)
@@ -97,7 +98,7 @@ class AutoFixService : CoroutineIntentService() {
 			.setCategory(NotificationCompat.CATEGORY_PROGRESS)
 			.addAction(
 				appcompatR.drawable.abc_ic_clear_material,
-				applicationContext.getString(android.R.string.cancel),
+				getString(android.R.string.cancel),
 				jobContext.getCancelIntent(),
 			)
 			.build()
@@ -110,7 +111,7 @@ class AutoFixService : CoroutineIntentService() {
 	}
 
 	private suspend fun buildNotification(startId: Int, result: Result<Pair<Manga, Manga?>>): Notification {
-		val notification = NotificationCompat.Builder(applicationContext, CHANNEL_ID)
+		val notification = NotificationCompat.Builder(this, CHANNEL_ID)
 			.setPriority(NotificationCompat.PRIORITY_DEFAULT)
 			.setDefaults(0)
 			.setSilent(true)
@@ -119,17 +120,17 @@ class AutoFixService : CoroutineIntentService() {
 			if (replacement != null) {
 				notification.setLargeIcon(
 					coil.execute(
-						ImageRequest.Builder(applicationContext)
+						ImageRequest.Builder(this)
 							.data(replacement.coverUrl)
 							.mangaSourceExtra(replacement.source)
 							.build(),
 					).toBitmapOrNull(),
 				)
 				notification.setSubText(replacement.title)
-				val intent = AppRouter.detailsIntent(applicationContext, replacement)
+				val intent = AppRouter.detailsIntent(this, replacement)
 				notification.setContentIntent(
 					PendingIntentCompat.getActivity(
-						applicationContext,
+						this,
 						replacement.id.toInt(),
 						intent,
 						PendingIntent.FLAG_UPDATE_CURRENT,
@@ -143,35 +144,35 @@ class AutoFixService : CoroutineIntentService() {
 					},
 				)
 				notification
-					.setContentTitle(applicationContext.getString(R.string.fixed))
+					.setContentTitle(getString(R.string.fixed))
 					.setContentText(
-						applicationContext.getString(
+						getString(
 							R.string.manga_replaced,
 							seed.title,
-							seed.source.getTitle(applicationContext),
+							seed.source.getTitle(this),
 							replacement.title,
-							replacement.source.getTitle(applicationContext),
+							replacement.source.getTitle(this),
 						),
 					)
 					.setSmallIcon(R.drawable.ic_stat_done)
 			} else {
 				notification
-					.setContentTitle(applicationContext.getString(R.string.fixing_manga))
-					.setContentText(applicationContext.getString(R.string.no_fix_required, seed.title))
+					.setContentTitle(getString(R.string.fixing_manga))
+					.setContentText(getString(R.string.no_fix_required, seed.title))
 					.setSmallIcon(android.R.drawable.stat_sys_warning)
 			}
 		}.onFailure { error ->
 			notification
-				.setContentTitle(applicationContext.getString(R.string.error_occurred))
+				.setContentTitle(getString(R.string.error_occurred))
 				.setContentText(
-					if (error is AutoFixUseCase.NoAlternativesException) {
-						applicationContext.getString(R.string.no_alternatives_found, error.seed.manga.title)
+					if (error is NoAlternativesException) {
+						getString(R.string.no_alternatives_found, error.seed.manga.title)
 					} else {
-						error.getDisplayMessage(applicationContext.resources)
+						error.getDisplayMessage(resources)
 					},
 				).setSmallIcon(android.R.drawable.stat_notify_error)
 			ErrorReporterReceiver.getNotificationAction(
-				context = applicationContext,
+				context = this,
 				e = error,
 				notificationId = startId,
 				notificationTag = TAG,

app/src/main/kotlin/org/koitharu/kotatsu/backups/domain/AppBackupAgent.kt

@@ -36,15 +36,14 @@ class AppBackupAgent : BackupAgent() {
 
 	override fun onFullBackup(data: FullBackupDataOutput) {
 		super.onFullBackup(data)
-		val file =
-			createBackupFile(
-				this,
-				BackupRepository(
-					MangaDatabase(context = applicationContext),
-					AppSettings(applicationContext),
-					TapGridSettings(applicationContext),
-				),
-			)
+		val file = createBackupFile(
+			this,
+			BackupRepository(
+				MangaDatabase(context = applicationContext),
+				AppSettings(applicationContext),
+				TapGridSettings(applicationContext),
+			),
+		)
 		try {
 			fullBackupFile(file, data)
 		} finally {
@@ -90,8 +89,12 @@ class AppBackupAgent : BackupAgent() {
 	@VisibleForTesting
 	fun restoreBackupFile(fd: FileDescriptor, size: Long, repository: BackupRepository) {
 		ZipInputStream(ByteStreams.limit(FileInputStream(fd), size)).use { input ->
+			val sections = EnumSet.allOf(BackupSection::class.java)
+			// managed externally
+			sections.remove(BackupSection.SETTINGS)
+			sections.remove(BackupSection.SETTINGS_READER_GRID)
 			runBlocking {
-				repository.restoreBackup(input, EnumSet.allOf(BackupSection::class.java), null)
+				repository.restoreBackup(input, sections, null)
 			}
 		}
 	}

app/src/main/kotlin/org/koitharu/kotatsu/backups/domain/BackupSection.kt

@@ -21,7 +21,7 @@ enum class BackupSection(
 
 		fun of(entry: ZipEntry): BackupSection? {
 			val name = entry.name.lowercase(Locale.ROOT)
-			return entries.first { x -> x.entryName == name }
+			return entries.find { x -> x.entryName == name }
 		}
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/backups/ui/BaseBackupRestoreService.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.backups.ui
 
+import android.content.Context
 import android.net.Uri
 import androidx.core.app.NotificationChannelCompat
 import androidx.core.app.NotificationCompat
@@ -27,24 +28,13 @@ abstract class BaseBackupRestoreService : CoroutineIntentService() {
 	override fun onCreate() {
 		super.onCreate()
 		notificationManager = NotificationManagerCompat.from(applicationContext)
-		createNotificationChannel()
+		createNotificationChannel(this)
 	}
 
 	override fun IntentJobContext.onError(error: Throwable) {
 		showResultNotification(null, CompositeResult.failure(error))
 	}
 
-	private fun createNotificationChannel() {
-		val channel = NotificationChannelCompat.Builder(CHANNEL_ID, NotificationManagerCompat.IMPORTANCE_HIGH)
-			.setName(getString(R.string.backup_restore))
-			.setShowBadge(true)
-			.setVibrationEnabled(false)
-			.setSound(null, null)
-			.setLightsEnabled(false)
-			.build()
-		notificationManager.createNotificationChannel(channel)
-	}
-
 	protected fun IntentJobContext.showResultNotification(
 		fileUri: Uri?,
 		result: CompositeResult,
@@ -128,8 +118,19 @@ abstract class BaseBackupRestoreService : CoroutineIntentService() {
 			.setBigContentTitle(title),
 	)
 
-	protected companion object {
+	companion object {
 
 		const val CHANNEL_ID = "backup_restore"
+
+		fun createNotificationChannel(context: Context) {
+			val channel = NotificationChannelCompat.Builder(CHANNEL_ID, NotificationManagerCompat.IMPORTANCE_HIGH)
+				.setName(context.getString(R.string.backup_restore))
+				.setShowBadge(true)
+				.setVibrationEnabled(false)
+				.setSound(null, null)
+				.setLightsEnabled(false)
+				.build()
+			NotificationManagerCompat.from(context).createNotificationChannel(channel)
+		}
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/backups/ui/periodical/PeriodicalBackupService.kt

@@ -1,12 +1,21 @@
 package org.koitharu.kotatsu.backups.ui.periodical
 
 import android.content.Intent
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import androidx.core.app.PendingIntentCompat
 import dagger.hilt.android.AndroidEntryPoint
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.backups.data.BackupRepository
 import org.koitharu.kotatsu.backups.domain.BackupUtils
 import org.koitharu.kotatsu.backups.domain.ExternalBackupStorage
+import org.koitharu.kotatsu.backups.ui.BaseBackupRestoreService
+import org.koitharu.kotatsu.core.ErrorReporterReceiver
+import org.koitharu.kotatsu.core.nav.AppRouter
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.CoroutineIntentService
+import org.koitharu.kotatsu.core.util.ext.checkNotificationPermission
+import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
 import java.util.zip.ZipOutputStream
 import javax.inject.Inject
 
@@ -40,7 +49,7 @@ class PeriodicalBackupService : CoroutineIntentService() {
 			}
 			externalBackupStorage.put(output)
 			externalBackupStorage.trim(settings.periodicalBackupMaxCount)
-			if (settings.isBackupTelegramUploadEnabled) {
+			if (settings.isBackupTelegramUploadEnabled && telegramBackupUploader.isAvailable) {
 				telegramBackupUploader.uploadBackup(output)
 			}
 		} finally {
@@ -48,5 +57,49 @@ class PeriodicalBackupService : CoroutineIntentService() {
 		}
 	}
 
-	override fun IntentJobContext.onError(error: Throwable) = Unit
+	override fun IntentJobContext.onError(error: Throwable) {
+		if (!applicationContext.checkNotificationPermission(CHANNEL_ID)) {
+			return
+		}
+		BaseBackupRestoreService.createNotificationChannel(applicationContext)
+		val notification = NotificationCompat.Builder(applicationContext, CHANNEL_ID)
+			.setPriority(NotificationCompat.PRIORITY_HIGH)
+			.setDefaults(0)
+			.setSilent(true)
+			.setAutoCancel(true)
+		val title = getString(R.string.periodic_backups)
+		val message = getString(
+			R.string.inline_preference_pattern,
+			getString(R.string.packup_creation_failed),
+			error.getDisplayMessage(resources),
+		)
+		notification
+			.setContentText(message)
+			.setSmallIcon(android.R.drawable.stat_notify_error)
+			.setStyle(
+				NotificationCompat.BigTextStyle()
+					.bigText(message)
+					.setSummaryText(getString(R.string.packup_creation_failed))
+					.setBigContentTitle(title),
+			)
+		ErrorReporterReceiver.getNotificationAction(applicationContext, error, startId, TAG)?.let { action ->
+			notification.addAction(action)
+		}
+		notification.setContentIntent(
+			PendingIntentCompat.getActivity(
+				applicationContext,
+				0,
+				AppRouter.periodicBackupSettingsIntent(applicationContext),
+				0,
+				false,
+			),
+		)
+		NotificationManagerCompat.from(applicationContext).notify(TAG, startId, notification.build())
+	}
+
+	private companion object {
+
+		const val CHANNEL_ID = BaseBackupRestoreService.CHANNEL_ID
+		const val TAG = "periodical_backup"
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/backups/ui/periodical/PeriodicalBackupSettingsFragment.kt

@@ -9,6 +9,7 @@ import androidx.activity.result.ActivityResultCallback
 import androidx.fragment.app.viewModels
 import androidx.preference.EditTextPreference
 import androidx.preference.Preference
+import androidx.preference.PreferenceCategory
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
@@ -37,6 +38,7 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
 		addPreferencesFromResource(R.xml.pref_backup_periodic)
+		findPreference<PreferenceCategory>(AppSettings.KEY_BACKUP_TG)?.isVisible = viewModel.isTelegramAvailable
 		findPreference<EditTextPreference>(AppSettings.KEY_BACKUP_TG_CHAT)?.summaryProvider =
 			EditTextFallbackSummaryProvider(R.string.telegram_chat_id_summary)
 	}
@@ -84,6 +86,11 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 			"" -> null
 			else -> path
 		}
+		preference.icon = if (path == null) {
+			getWarningIcon()
+		} else {
+			null
+		}
 	}
 
 	private fun bindLastBackupInfo(lastBackupDate: Date?) {

app/src/main/kotlin/org/koitharu/kotatsu/backups/ui/periodical/PeriodicalBackupSettingsViewModel.kt

@@ -27,6 +27,9 @@ class PeriodicalBackupSettingsViewModel @Inject constructor(
 	@ApplicationContext private val appContext: Context,
 ) : BaseViewModel() {
 
+	val isTelegramAvailable
+		get() = telegramUploader.isAvailable
+
 	val lastBackupDate = MutableStateFlow<Date?>(null)
 	val backupsDirectory = MutableStateFlow<String?>("")
 	val isTelegramCheckLoading = MutableStateFlow(false)

app/src/main/kotlin/org/koitharu/kotatsu/backups/ui/periodical/TelegramBackupUploader.kt

@@ -30,10 +30,13 @@ class TelegramBackupUploader @Inject constructor(
 
 	private val botToken = context.getString(R.string.tg_backup_bot_token)
 
+	val isAvailable: Boolean
+		get() = botToken.isNotEmpty()
+
 	suspend fun uploadBackup(file: File) {
 		val requestBody = file.asRequestBody("application/zip".toMediaTypeOrNull())
 		val multipartBody = MultipartBody.Builder()
-			.setType(MultipartBody.Companion.FORM)
+			.setType(MultipartBody.FORM)
 			.addFormDataPart("chat_id", requireChatId())
 			.addFormDataPart("document", file.name, requestBody)
 			.build()

app/src/main/kotlin/org/koitharu/kotatsu/browser/BrowserClient.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.browser
 
+import android.annotation.SuppressLint
 import android.graphics.Bitmap
 import android.os.Looper
 import android.webkit.WebResourceRequest
@@ -15,7 +16,7 @@ import java.io.ByteArrayInputStream
 
 open class BrowserClient(
 	private val callback: BrowserCallback,
-	private val adBlock: AdBlock,
+	private val adBlock: AdBlock?,
 ) : WebViewClient() {
 
 	/**
@@ -47,7 +48,7 @@ open class BrowserClient(
 	override fun shouldInterceptRequest(
 		view: WebView?,
 		url: String?
-	): WebResourceResponse? = if (url.isNullOrEmpty() || adBlock.shouldLoadUrl(url, view?.getUrlSafe())) {
+	): WebResourceResponse? = if (url.isNullOrEmpty() || adBlock?.shouldLoadUrl(url, view?.getUrlSafe()) ?: true) {
 		super.shouldInterceptRequest(view, url)
 	} else {
 		emptyResponse()
@@ -57,15 +58,17 @@ open class BrowserClient(
 	override fun shouldInterceptRequest(
 		view: WebView?,
 		request: WebResourceRequest?
-	): WebResourceResponse? = if (request == null || adBlock.shouldLoadUrl(request.url.toString(), view?.getUrlSafe())) {
-		super.shouldInterceptRequest(view, request)
-	} else {
-		emptyResponse()
-	}
+	): WebResourceResponse? =
+		if (request == null || adBlock?.shouldLoadUrl(request.url.toString(), view?.getUrlSafe()) ?: true) {
+			super.shouldInterceptRequest(view, request)
+		} else {
+			emptyResponse()
+		}
 
 	private fun emptyResponse(): WebResourceResponse =
 		WebResourceResponse("text/plain", "utf-8", ByteArrayInputStream(byteArrayOf()))
 
+	@SuppressLint("WrongThread")
 	@AnyThread
 	private fun WebView.getUrlSafe(): String? = if (Looper.myLooper() == Looper.getMainLooper()) {
 		url

app/src/main/kotlin/org/koitharu/kotatsu/core/AppModule.kt

@@ -42,18 +42,21 @@ import org.koitharu.kotatsu.core.network.imageproxy.ImageProxyInterceptor
 import org.koitharu.kotatsu.core.os.AppShortcutManager
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.MangaLoaderContextImpl
-import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.parser.favicon.FaviconFetcher
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.image.CoilImageGetter
 import org.koitharu.kotatsu.core.ui.util.ActivityRecreationHandle
 import org.koitharu.kotatsu.core.util.AcraScreenLogger
+import org.koitharu.kotatsu.core.util.FileSize
 import org.koitharu.kotatsu.core.util.ext.connectivityManager
 import org.koitharu.kotatsu.core.util.ext.isLowRamDevice
 import org.koitharu.kotatsu.details.ui.pager.pages.MangaPageFetcher
 import org.koitharu.kotatsu.details.ui.pager.pages.MangaPageKeyer
 import org.koitharu.kotatsu.local.data.CacheDir
+import org.koitharu.kotatsu.local.data.FaviconCache
+import org.koitharu.kotatsu.local.data.LocalStorageCache
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
+import org.koitharu.kotatsu.local.data.PageCache
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.main.domain.CoverRestoreInterceptor
 import org.koitharu.kotatsu.main.ui.protect.AppProtectHelper
@@ -101,7 +104,7 @@ interface AppModule {
 		fun provideCoil(
 			@LocalizedAppContext context: Context,
 			@MangaHttpClient okHttpClientProvider: Provider<OkHttpClient>,
-			mangaRepositoryFactory: MangaRepository.Factory,
+			faviconFetcherFactory: FaviconFetcher.Factory,
 			imageProxyInterceptor: ImageProxyInterceptor,
 			pageFetcherFactory: MangaPageFetcher.Factory,
 			coverRestoreInterceptor: CoverRestoreInterceptor,
@@ -138,7 +141,7 @@ interface AppModule {
 					add(SvgDecoder.Factory())
 					add(CbzFetcher.Factory())
 					add(AvifImageDecoder.Factory())
-					add(FaviconFetcher.Factory(mangaRepositoryFactory))
+					add(faviconFetcherFactory)
 					add(MangaPageKeyer())
 					add(pageFetcherFactory)
 					add(imageProxyInterceptor)
@@ -195,5 +198,29 @@ interface AppModule {
 		fun provideWorkManager(
 			@ApplicationContext context: Context,
 		): WorkManager = WorkManager.getInstance(context)
+
+		@Provides
+		@Singleton
+		@PageCache
+		fun providePageCache(
+			@ApplicationContext context: Context,
+		) = LocalStorageCache(
+			context = context,
+			dir = CacheDir.PAGES,
+			defaultSize = FileSize.MEGABYTES.convert(200, FileSize.BYTES),
+			minSize = FileSize.MEGABYTES.convert(20, FileSize.BYTES),
+		)
+
+		@Provides
+		@Singleton
+		@FaviconCache
+		fun provideFaviconCache(
+			@ApplicationContext context: Context,
+		) = LocalStorageCache(
+			context = context,
+			dir = CacheDir.FAVICONS,
+			defaultSize = FileSize.MEGABYTES.convert(8, FileSize.BYTES),
+			minSize = FileSize.MEGABYTES.convert(2, FileSize.BYTES),
+		)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/BaseApp.kt

@@ -8,11 +8,11 @@ import androidx.appcompat.app.AppCompatDelegate
 import androidx.hilt.work.HiltWorkerFactory
 import androidx.room.InvalidationTracker
 import androidx.work.Configuration
-import androidx.work.WorkManager
 import dagger.hilt.android.HiltAndroidApp
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.launch
+import okhttp3.internal.platform.PlatformRegistry
 import org.acra.ACRA
 import org.acra.ReportField
 import org.acra.config.dialog
@@ -27,7 +27,6 @@ import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.os.AppValidator
 import org.koitharu.kotatsu.core.os.RomCompat
 import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.util.WorkServiceStopHelper
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
 import org.koitharu.kotatsu.local.data.index.LocalMangaIndex
@@ -62,9 +61,6 @@ open class BaseApp : Application(), Configuration.Provider {
 	@Inject
 	lateinit var workScheduleManager: WorkScheduleManager
 
-	@Inject
-	lateinit var workManagerProvider: Provider<WorkManager>
-
 	@Inject
 	lateinit var localMangaIndexProvider: Provider<LocalMangaIndex>
 
@@ -79,6 +75,7 @@ open class BaseApp : Application(), Configuration.Provider {
 
 	override fun onCreate() {
 		super.onCreate()
+		PlatformRegistry.applicationContext = this // TODO replace with OkHttp.initialize
 		if (ACRA.isACRASenderServiceProcess()) {
 			return
 		}
@@ -97,7 +94,6 @@ open class BaseApp : Application(), Configuration.Provider {
 			localStorageChanges.collect(localMangaIndexProvider.get())
 		}
 		workScheduleManager.init()
-		WorkServiceStopHelper(workManagerProvider).setup()
 	}
 
 	override fun attachBaseContext(base: Context) {

app/src/main/kotlin/org/koitharu/kotatsu/core/ErrorReporterReceiver.kt

@@ -4,7 +4,6 @@ import android.app.PendingIntent
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
-import android.os.BadParcelableException
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.PendingIntentCompat
@@ -65,7 +64,7 @@ class ErrorReporterReceiver : BroadcastReceiver() {
 			e: Throwable,
 			notificationId: Int,
 			notificationTag: String?,
-		): PendingIntent? = try {
+		): PendingIntent? = runCatching {
 			val intent = Intent(context, ErrorReporterReceiver::class.java)
 			intent.setAction(ACTION_REPORT)
 			intent.setData("err://${e.hashCode()}".toUri())
@@ -73,9 +72,9 @@ class ErrorReporterReceiver : BroadcastReceiver() {
 			intent.putExtra(EXTRA_NOTIFICATION_ID, notificationId)
 			intent.putExtra(EXTRA_NOTIFICATION_TAG, notificationTag)
 			PendingIntentCompat.getBroadcast(context, 0, intent, 0, false)
-		} catch (e: BadParcelableException) {
+		}.onFailure { e ->
+			// probably cannot write exception as serializable
 			e.printStackTraceDebug()
-			null
-		}
+		}.getOrNull()
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/resolve/CaptchaHandler.kt

@@ -5,16 +5,15 @@ import android.app.Notification
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
-import android.content.IntentFilter
 import android.os.Build
 import android.provider.Settings
+import androidx.annotation.CheckResult
 import androidx.annotation.RequiresPermission
 import androidx.collection.MutableScatterMap
 import androidx.core.app.NotificationChannelCompat
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.PendingIntentCompat
-import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
 import androidx.lifecycle.coroutineScope
 import coil3.EventListener
@@ -26,6 +25,7 @@ import coil3.request.allowConversionToBitmap
 import coil3.request.allowHardware
 import coil3.request.lifecycle
 import coil3.size.Scale
+import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
 import kotlinx.coroutines.awaitAll
@@ -44,6 +44,7 @@ import org.koitharu.kotatsu.core.model.UnknownMangaSource
 import org.koitharu.kotatsu.core.model.getTitle
 import org.koitharu.kotatsu.core.model.isNsfw
 import org.koitharu.kotatsu.core.nav.AppRouter
+import org.koitharu.kotatsu.core.network.webview.WebViewExecutor
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.prefs.SourceSettings
 import org.koitharu.kotatsu.core.util.ext.checkNotificationPermission
@@ -55,6 +56,7 @@ import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
 import org.koitharu.kotatsu.core.util.ext.toBitmapOrNull
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.network.CloudFlareHelper
+import org.koitharu.kotatsu.parsers.util.mapToArray
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import javax.inject.Inject
 import javax.inject.Provider
@@ -65,27 +67,13 @@ class CaptchaHandler @Inject constructor(
 	@LocalizedAppContext private val context: Context,
 	private val databaseProvider: Provider<MangaDatabase>,
 	private val coilProvider: Provider<ImageLoader>,
+	private val webViewExecutor: WebViewExecutor,
 ) : EventListener() {
 
 	private val exceptionMap = MutableScatterMap<MangaSource, CloudFlareProtectedException>()
 	private val mutex = Mutex()
 
-	init {
-		ContextCompat.registerReceiver(
-			context,
-			object : BroadcastReceiver() {
-				override fun onReceive(context: Context?, intent: Intent?) {
-					val sourceName = intent?.getStringExtra(AppRouter.KEY_SOURCE) ?: return
-					goAsync {
-						handleException(MangaSource(sourceName), exception = null, notify = false)
-					}
-				}
-			},
-			IntentFilter().apply { addAction(ACTION_DISCARD) },
-			ContextCompat.RECEIVER_NOT_EXPORTED,
-		)
-	}
-
+	@CheckResult
 	suspend fun handle(exception: CloudFlareException): Boolean = handleException(exception.source, exception, true)
 
 	suspend fun discard(source: MangaSource) {
@@ -95,10 +83,18 @@ class CaptchaHandler @Inject constructor(
 	override fun onError(request: ImageRequest, result: ErrorResult) {
 		super.onError(request, result)
 		val e = result.throwable
-		if (e is CloudFlareException && request.extras[ignoreCaptchaKey] != true) {
+		if (e is CloudFlareException) {
 			val scope = request.lifecycle?.coroutineScope ?: processLifecycleScope
 			scope.launch {
-				handleException(e.source, e, true)
+				if (
+					handleException(
+						source = e.source,
+						exception = e,
+						notify = request.extras[suppressCaptchaKey] != true,
+					)
+				) {
+					coilProvider.get().enqueue(request) // TODO check if ok
+				}
 			}
 		}
 	}
@@ -106,11 +102,14 @@ class CaptchaHandler @Inject constructor(
 	private suspend fun handleException(
 		source: MangaSource,
 		exception: CloudFlareException?,
-		notify: Boolean
+		notify: Boolean,
 	): Boolean = withContext(Dispatchers.Default) {
 		if (source == UnknownMangaSource) {
 			return@withContext false
 		}
+		if (exception != null && webViewExecutor.tryResolveCaptcha(exception, RESOLVE_TIMEOUT)) {
+			return@withContext true
+		}
 		mutex.withLock {
 			var removedException: CloudFlareProtectedException? = null
 			if (exception is CloudFlareProtectedException) {
@@ -121,21 +120,21 @@ class CaptchaHandler @Inject constructor(
 			val dao = databaseProvider.get().getSourcesDao()
 			dao.setCfState(source.name, exception?.state ?: CloudFlareHelper.PROTECTION_NOT_DETECTED)
 
-			val exceptions = dao.findAllCaptchaRequired().mapNotNull {
-				it.source.toMangaSourceOrNull()
-			}.filterNot {
-				SourceSettings(context, it).isCaptchaNotificationsDisabled
-			}.mapNotNull {
-				exceptionMap[it]
-			}
 			if (notify && context.checkNotificationPermission(CHANNEL_ID)) {
+				val exceptions = dao.findAllCaptchaRequired().mapNotNull {
+					it.source.toMangaSourceOrNull()
+				}.filterNot {
+					SourceSettings(context, it).isCaptchaNotificationsDisabled
+				}.mapNotNull {
+					exceptionMap[it]
+				}
 				if (removedException != null) {
 					NotificationManagerCompat.from(context).cancel(TAG, removedException.source.hashCode())
 				}
 				notify(exceptions)
 			}
 		}
-		true
+		false
 	}
 
 	@RequiresPermission(Manifest.permission.POST_NOTIFICATIONS)
@@ -169,6 +168,15 @@ class CaptchaHandler @Inject constructor(
 				.setOnlyAlertOnce(true)
 				.setSmallIcon(R.drawable.ic_bot)
 				.setGroup(GROUP_CAPTCHA)
+				.setContentIntent(
+					PendingIntentCompat.getActivities(
+						context, GROUP_NOTIFICATION_ID,
+						exceptions.mapToArray { e ->
+							AppRouter.cloudFlareResolveIntent(context, e)
+						},
+						0, false,
+					),
+				)
 				.setContentText(
 					context.getString(
 						R.string.captcha_required_summary, context.getString(R.string.app_name),
@@ -189,7 +197,6 @@ class CaptchaHandler @Inject constructor(
 
 	private suspend fun buildNotification(exception: CloudFlareProtectedException): Notification {
 		val intent = AppRouter.cloudFlareResolveIntent(context, exception)
-			.setData(exception.url.toUri())
 		val discardIntent = Intent(ACTION_DISCARD)
 			.putExtra(AppRouter.KEY_SOURCE, exception.source.name)
 			.setData("source://${exception.source.name}".toUri())
@@ -242,6 +249,7 @@ class CaptchaHandler @Inject constructor(
 				.data(source.faviconUri())
 				.allowHardware(false)
 				.allowConversionToBitmap(true)
+				.suppressCaptchaErrors()
 				.mangaSourceExtra(source)
 				.size(context.resources.getNotificationIconSize())
 				.scale(Scale.FILL)
@@ -251,13 +259,27 @@ class CaptchaHandler @Inject constructor(
 		it.printStackTraceDebug()
 	}.getOrNull()
 
+	@AndroidEntryPoint
+	class DiscardReceiver : BroadcastReceiver() {
+
+		@Inject
+		lateinit var captchaHandler: CaptchaHandler
+
+		override fun onReceive(context: Context?, intent: Intent?) {
+			val sourceName = intent?.getStringExtra(AppRouter.KEY_SOURCE) ?: return
+			goAsync {
+				captchaHandler.handleException(MangaSource(sourceName), exception = null, notify = false)
+			}
+		}
+	}
+
 	companion object {
 
-		fun ImageRequest.Builder.ignoreCaptchaErrors() = apply {
-			extras[ignoreCaptchaKey] = true
+		fun ImageRequest.Builder.suppressCaptchaErrors() = apply {
+			extras[suppressCaptchaKey] = true
 		}
 
-		val ignoreCaptchaKey = Extras.Key(false)
+		private val suppressCaptchaKey = Extras.Key(false)
 
 		private const val CHANNEL_ID = "captcha"
 		private const val TAG = CHANNEL_ID
@@ -265,5 +287,6 @@ class CaptchaHandler @Inject constructor(
 		private const val GROUP_NOTIFICATION_ID = 34
 		private const val SETTINGS_ACTION_CODE = 3
 		private const val ACTION_DISCARD = "org.koitharu.kotatsu.CAPTCHA_DISCARD"
+		private const val RESOLVE_TIMEOUT = 20_000L
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/image/MangaSourceHeaderInterceptor.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.core.image
 import coil3.intercept.Interceptor
 import coil3.network.httpHeaders
 import coil3.request.ImageResult
+import org.koitharu.kotatsu.core.model.unwrap
 import org.koitharu.kotatsu.core.network.CommonHeaders
 import org.koitharu.kotatsu.core.util.ext.mangaSourceKey
 import org.koitharu.kotatsu.parsers.model.MangaParserSource
@@ -10,7 +11,7 @@ import org.koitharu.kotatsu.parsers.model.MangaParserSource
 class MangaSourceHeaderInterceptor : Interceptor {
 
 	override suspend fun intercept(chain: Interceptor.Chain): ImageResult {
-		val mangaSource = chain.request.extras[mangaSourceKey] as? MangaParserSource ?: return chain.proceed()
+		val mangaSource = chain.request.extras[mangaSourceKey]?.unwrap() as? MangaParserSource ?: return chain.proceed()
 		val request = chain.request
 		val newHeaders = request.httpHeaders.newBuilder()
 			.set(CommonHeaders.MANGA_SOURCE, mangaSource.name)

app/src/main/kotlin/org/koitharu/kotatsu/core/model/Manga.kt

@@ -55,6 +55,7 @@ val MangaState.titleResId: Int
 		MangaState.ABANDONED -> R.string.state_abandoned
 		MangaState.PAUSED -> R.string.state_paused
 		MangaState.UPCOMING -> R.string.state_upcoming
+		MangaState.RESTRICTED -> R.string.unavailable
 	}
 
 @get:DrawableRes
@@ -65,6 +66,7 @@ val MangaState.iconResId: Int
 		MangaState.ABANDONED -> R.drawable.ic_state_abandoned
 		MangaState.PAUSED -> R.drawable.ic_action_pause
 		MangaState.UPCOMING -> materialR.drawable.ic_clock_black_24dp
+		MangaState.RESTRICTED -> R.drawable.ic_disable
 	}
 
 @get:StringRes

app/src/main/kotlin/org/koitharu/kotatsu/core/model/MangaSource.kt

@@ -28,11 +28,15 @@ data object UnknownMangaSource : MangaSource {
 	override val name = "UNKNOWN"
 }
 
+data object TestMangaSource : MangaSource {
+	override val name = "TEST"
+}
+
 fun MangaSource(name: String?): MangaSource {
 	when (name ?: return UnknownMangaSource) {
 		UnknownMangaSource.name -> return UnknownMangaSource
-
 		LocalMangaSource.name -> return LocalMangaSource
+		TestMangaSource.name -> return TestMangaSource
 	}
 	if (name.startsWith("content:")) {
 		val parts = name.substringAfter(':').splitTwoParts('/') ?: return UnknownMangaSource
@@ -92,6 +96,7 @@ fun MangaSource.getSummary(context: Context): String? = when (val source = unwra
 fun MangaSource.getTitle(context: Context): String = when (val source = unwrap()) {
 	is MangaParserSource -> source.title
 	LocalMangaSource -> context.getString(R.string.local_storage)
+	TestMangaSource -> context.getString(R.string.test_parser)
 	is ExternalMangaSource -> source.resolveName(context)
 	else -> context.getString(R.string.unknown)
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/nav/AppRouter.kt

@@ -281,6 +281,10 @@ class AppRouter private constructor(
 		startActivity(sourcesSettingsIntent(contextOrNull() ?: return))
 	}
 
+	fun openDiscordSettings() {
+		startActivity(discordSettingsIntent(contextOrNull() ?: return))
+	}
+
 	fun openReaderTapGridSettings() = startActivity(ReaderTapGridConfigActivity::class.java)
 
 	fun openScrobblerSettings(scrobbler: ScrobblerService) {
@@ -571,7 +575,7 @@ class AppRouter private constructor(
 	/** Public utils **/
 
 	fun isFilterSupported(): Boolean = when {
-		fragment != null -> fragment.activity is FilterCoordinator.Owner
+		fragment != null -> FilterCoordinator.find(fragment) != null
 		activity != null -> activity is FilterCoordinator.Owner
 		else -> false
 	}
@@ -741,6 +745,14 @@ class AppRouter private constructor(
 			Intent(context, SettingsActivity::class.java)
 				.setAction(ACTION_TRACKER)
 
+		fun periodicBackupSettingsIntent(context: Context) =
+			Intent(context, SettingsActivity::class.java)
+				.setAction(ACTION_PERIODIC_BACKUP)
+
+		fun discordSettingsIntent(context: Context) =
+			Intent(context, SettingsActivity::class.java)
+				.setAction(ACTION_MANAGE_DISCORD)
+
 		fun proxySettingsIntent(context: Context) =
 			Intent(context, SettingsActivity::class.java)
 				.setAction(ACTION_PROXY)
@@ -786,7 +798,7 @@ class AppRouter private constructor(
 			else -> true
 		}
 
-		fun shortMangaUrl(mangaId: Long) = Uri.Builder()
+		fun shortMangaUrl(mangaId: Long): Uri = Uri.Builder()
 			.scheme("kotatsu")
 			.path("manga")
 			.appendQueryParameter("id", mangaId.toString())
@@ -800,6 +812,7 @@ class AppRouter private constructor(
 		const val KEY_FILTER = "filter"
 		const val KEY_ID = "id"
 		const val KEY_INDEX = "index"
+		const val KEY_IS_BOTTOMTAB = "is_btab"
 		const val KEY_KIND = "kind"
 		const val KEY_LIST_SECTION = "list_section"
 		const val KEY_MANGA = "manga"
@@ -823,8 +836,10 @@ class AppRouter private constructor(
 		const val ACTION_READER = "${BuildConfig.APPLICATION_ID}.action.MANAGE_READER_SETTINGS"
 		const val ACTION_SOURCE = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCE_SETTINGS"
 		const val ACTION_SOURCES = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCES"
+		const val ACTION_MANAGE_DISCORD = "${BuildConfig.APPLICATION_ID}.action.MANAGE_DISCORD"
 		const val ACTION_SUGGESTIONS = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SUGGESTIONS"
 		const val ACTION_TRACKER = "${BuildConfig.APPLICATION_ID}.action.MANAGE_TRACKER"
+		const val ACTION_PERIODIC_BACKUP = "${BuildConfig.APPLICATION_ID}.action.MANAGE_PERIODIC_BACKUP"
 
 		private const val ACCOUNT_KEY = "account"
 		private const val ACTION_ACCOUNT_SYNC_SETTINGS = "android.settings.ACCOUNT_SYNC_SETTINGS"

app/src/main/kotlin/org/koitharu/kotatsu/core/network/CommonHeadersInterceptor.kt

@@ -1,6 +1,5 @@
 package org.koitharu.kotatsu.core.network
 
-import android.util.Log
 import dagger.Lazy
 import okhttp3.Headers
 import okhttp3.Interceptor
@@ -36,7 +35,8 @@ class CommonHeadersInterceptor @Inject constructor(
 			mangaRepositoryFactoryLazy.get().create(source) as? ParserMangaRepository
 		} else {
 			if (BuildConfig.DEBUG && source == null) {
-				Log.w("Http", "Request without source tag: ${request.url}")
+				IllegalArgumentException("Request without source tag: ${request.url}")
+					.printStackTrace()
 			}
 			null
 		}

app/src/main/kotlin/org/koitharu/kotatsu/core/network/cookies/AndroidCookieJar.kt

@@ -5,7 +5,6 @@ import androidx.annotation.WorkerThread
 import androidx.core.util.Predicate
 import okhttp3.Cookie
 import okhttp3.HttpUrl
-import org.koitharu.kotatsu.parsers.util.newBuilder
 import kotlin.coroutines.resume
 import kotlin.coroutines.suspendCoroutine
 

app/src/main/kotlin/org/koitharu/kotatsu/core/network/webview/CaptchaContinuationClient.kt

@@ -0,0 +1,30 @@
+package org.koitharu.kotatsu.core.network.webview
+
+import android.graphics.Bitmap
+import android.webkit.WebView
+import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
+import org.koitharu.kotatsu.parsers.network.CloudFlareHelper
+import kotlin.coroutines.Continuation
+
+class CaptchaContinuationClient(
+	private val cookieJar: MutableCookieJar,
+	private val targetUrl: String,
+	continuation: Continuation<Unit>,
+) : ContinuationResumeWebViewClient(continuation) {
+
+	private val oldClearance = CloudFlareHelper.getClearanceCookie(cookieJar, targetUrl)
+
+	override fun onPageFinished(view: WebView?, url: String?) = Unit
+
+	override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
+		super.onPageStarted(view, url, favicon)
+		checkClearance(view)
+	}
+
+	private fun checkClearance(view: WebView?) {
+		val clearance = CloudFlareHelper.getClearanceCookie(cookieJar, targetUrl)
+		if (clearance != null && clearance != oldClearance) {
+			resumeContinuation(view)
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/network/webview/ContinuationResumeWebViewClient.kt

@@ -2,15 +2,22 @@ package org.koitharu.kotatsu.core.network.webview
 
 import android.webkit.WebView
 import android.webkit.WebViewClient
+import kotlinx.coroutines.CancellableContinuation
 import kotlin.coroutines.Continuation
 import kotlin.coroutines.resume
 
-class ContinuationResumeWebViewClient(
+open class ContinuationResumeWebViewClient(
 	private val continuation: Continuation<Unit>,
 ) : WebViewClient() {
 
 	override fun onPageFinished(view: WebView?, url: String?) {
-		view?.webViewClient = WebViewClient() // reset to default
-		continuation.resume(Unit)
+		resumeContinuation(view)
+	}
+
+	protected fun resumeContinuation(view: WebView?) {
+		if (continuation !is CancellableContinuation || continuation.isActive) {
+			view?.webViewClient = WebViewClient() // reset to default
+			continuation.resume(Unit)
+		}
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/network/webview/WebViewExecutor.kt

@@ -0,0 +1,134 @@
+package org.koitharu.kotatsu.core.network.webview
+
+import android.content.Context
+import android.util.AndroidRuntimeException
+import android.webkit.WebSettings
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import androidx.annotation.MainThread
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withContext
+import kotlinx.coroutines.withTimeout
+import org.koitharu.kotatsu.core.exceptions.CloudFlareException
+import org.koitharu.kotatsu.core.network.CommonHeaders
+import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
+import org.koitharu.kotatsu.core.network.proxy.ProxyProvider
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.parser.ParserMangaRepository
+import org.koitharu.kotatsu.core.util.ext.configureForParser
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import java.lang.ref.WeakReference
+import javax.inject.Inject
+import javax.inject.Provider
+import javax.inject.Singleton
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
+
+@Singleton
+class WebViewExecutor @Inject constructor(
+	@ApplicationContext private val context: Context,
+	private val proxyProvider: ProxyProvider,
+	private val cookieJar: MutableCookieJar,
+	private val mangaRepositoryFactoryProvider: Provider<MangaRepository.Factory>,
+) {
+
+	private var webViewCached: WeakReference<WebView>? = null
+	private val mutex = Mutex()
+
+	val defaultUserAgent: String? by lazy {
+		try {
+			WebSettings.getDefaultUserAgent(context)
+		} catch (e: AndroidRuntimeException) {
+			e.printStackTraceDebug()
+			// Probably WebView is not available
+			null
+		}
+	}
+
+	suspend fun evaluateJs(baseUrl: String?, script: String): String? = mutex.withLock {
+		withContext(Dispatchers.Main.immediate) {
+			val webView = obtainWebView()
+			try {
+				if (!baseUrl.isNullOrEmpty()) {
+					suspendCoroutine { cont ->
+						webView.webViewClient = ContinuationResumeWebViewClient(cont)
+						webView.loadDataWithBaseURL(baseUrl, " ", "text/html", null, null)
+					}
+				}
+				suspendCoroutine { cont ->
+					webView.evaluateJavascript(script) { result ->
+						cont.resume(result?.takeUnless { it == "null" })
+					}
+				}
+			} finally {
+				webView.reset()
+			}
+		}
+	}
+
+	suspend fun tryResolveCaptcha(exception: CloudFlareException, timeout: Long): Boolean = mutex.withLock {
+		runCatchingCancellable {
+			withContext(Dispatchers.Main.immediate) {
+				val webView = obtainWebView()
+				try {
+					exception.source.getUserAgent()?.let {
+						webView.settings.userAgentString = it
+					}
+					withTimeout(timeout) {
+						suspendCancellableCoroutine { cont ->
+							webView.webViewClient = CaptchaContinuationClient(
+								cookieJar = cookieJar,
+								targetUrl = exception.url,
+								continuation = cont,
+							)
+							webView.loadUrl(exception.url)
+						}
+					}
+				} finally {
+					webView.reset()
+				}
+			}
+		}.onFailure { e ->
+			exception.addSuppressed(e)
+			e.printStackTraceDebug()
+		}.isSuccess
+	}
+
+	private suspend fun obtainWebView(): WebView {
+		webViewCached?.get()?.let {
+			return it
+		}
+		return withContext(Dispatchers.Main.immediate) {
+			webViewCached?.get()?.let {
+				return@withContext it
+			}
+			WebView(context).also {
+				it.configureForParser(null)
+				webViewCached = WeakReference(it)
+				proxyProvider.applyWebViewConfig()
+				it.onResume()
+				it.resumeTimers()
+			}
+		}
+	}
+
+	private fun MangaSource.getUserAgent(): String? {
+		val repository = mangaRepositoryFactoryProvider.get().create(this) as? ParserMangaRepository
+		return repository?.getRequestHeaders()?.get(CommonHeaders.USER_AGENT)
+	}
+
+	@MainThread
+	private fun WebView.reset() {
+		stopLoading()
+		webViewClient = WebViewClient()
+		settings.userAgentString = defaultUserAgent
+		loadDataWithBaseURL(null, " ", "text/html", null, null)
+		clearHistory()
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/os/AppShortcutManager.kt

@@ -149,7 +149,7 @@ class AppShortcutManager @Inject constructor(
 			onSuccess = { IconCompat.createWithAdaptiveBitmap(it) },
 			onFailure = { IconCompat.createWithResource(context, R.drawable.ic_shortcut_default) },
 		)
-		mangaRepository.storeManga(manga)
+		mangaRepository.storeManga(manga, replaceExisting = true)
 		val title = manga.title.ifEmpty {
 			manga.altTitles.firstOrNull()
 		}.ifNullOrEmpty {
@@ -173,6 +173,7 @@ class AppShortcutManager @Inject constructor(
 			coil.execute(
 				ImageRequest.Builder(context)
 					.data(source.faviconUri())
+					.mangaSourceExtra(source)
 					.size(iconSize)
 					.scale(Scale.FIT)
 					.build(),

app/src/main/kotlin/org/koitharu/kotatsu/core/os/NetworkState.kt

@@ -80,12 +80,7 @@ class NetworkState(
 			if (settings.isOfflineCheckDisabled) {
 				return true
 			}
-			return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-				activeNetwork?.let { isOnline(it) } == true
-			} else {
-				@Suppress("DEPRECATION")
-				activeNetworkInfo?.isConnected == true
-			}
+			return activeNetwork?.let { isOnline(it) } == true
 		}
 
 		private fun ConnectivityManager.isOnline(network: Network): Boolean {

app/src/main/kotlin/org/koitharu/kotatsu/core/os/OpenDocumentTreeHelper.kt

@@ -13,7 +13,6 @@ import androidx.activity.result.contract.ActivityResultContract
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.annotation.RequiresApi
 import androidx.core.app.ActivityOptionsCompat
-import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 
 // https://stackoverflow.com/questions/77555641/saf-no-activity-found-to-handle-intent-android-intent-action-open-document-tr
 class OpenDocumentTreeHelper(
@@ -28,38 +27,42 @@ class OpenDocumentTreeHelper(
 		callback,
 	)
 
-	private val pickFileTreeLauncherQ = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-		activityResultCaller.registerForActivityResult(OpenDocumentTreeContractQ(flags), callback)
+	private val pickFileTreeLauncherPrimaryStorage = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+		activityResultCaller.registerForActivityResult(OpenDocumentTreeContractPrimaryStorage(flags), callback)
 	} else {
 		null
 	}
-	private val pickFileTreeLauncherLegacy = activityResultCaller.registerForActivityResult(
-		contract = OpenDocumentTreeContractLegacy(flags),
+	private val pickFileTreeLauncherDefault = activityResultCaller.registerForActivityResult(
+		contract = OpenDocumentTreeContractDefault(flags),
 		callback = callback,
 	)
 
 	override fun launch(input: Uri?, options: ActivityOptionsCompat?) {
-		if (pickFileTreeLauncherQ == null) {
-			pickFileTreeLauncherLegacy.launch(input, options)
-			return
-		}
 		try {
-			pickFileTreeLauncherQ.launch(input, options)
+			pickFileTreeLauncherDefault.launch(input, options)
 		} catch (e: Exception) {
-			e.printStackTraceDebug()
-			pickFileTreeLauncherLegacy.launch(input, options)
+			if (pickFileTreeLauncherPrimaryStorage != null) {
+				try {
+					pickFileTreeLauncherPrimaryStorage.launch(input, options)
+				} catch (e2: Exception) {
+					e.addSuppressed(e2)
+					throw e
+				}
+			} else {
+				throw e
+			}
 		}
 	}
 
 	override fun unregister() {
-		pickFileTreeLauncherQ?.unregister()
-		pickFileTreeLauncherLegacy.unregister()
+		pickFileTreeLauncherPrimaryStorage?.unregister()
+		pickFileTreeLauncherDefault.unregister()
 	}
 
 	override val contract: ActivityResultContract<Uri?, *>
-		get() = pickFileTreeLauncherQ?.contract ?: pickFileTreeLauncherLegacy.contract
+		get() = pickFileTreeLauncherPrimaryStorage?.contract ?: pickFileTreeLauncherDefault.contract
 
-	private open class OpenDocumentTreeContractLegacy(
+	private open class OpenDocumentTreeContractDefault(
 		private val flags: Int,
 	) : ActivityResultContracts.OpenDocumentTree() {
 
@@ -71,9 +74,9 @@ class OpenDocumentTreeHelper(
 	}
 
 	@RequiresApi(Build.VERSION_CODES.Q)
-	private class OpenDocumentTreeContractQ(
+	private class OpenDocumentTreeContractPrimaryStorage(
 		private val flags: Int,
-	) : OpenDocumentTreeContractLegacy(flags) {
+	) : OpenDocumentTreeContractDefault(flags) {
 
 		override fun createIntent(context: Context, input: Uri?): Intent {
 			val intent = (context.getSystemService(Context.STORAGE_SERVICE) as? StorageManager)

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/DummyParser.kt

@@ -1,42 +0,0 @@
-package org.koitharu.kotatsu.core.parser
-
-import org.koitharu.kotatsu.core.exceptions.UnsupportedSourceException
-import org.koitharu.kotatsu.parsers.MangaLoaderContext
-import org.koitharu.kotatsu.parsers.config.ConfigKey
-import org.koitharu.kotatsu.parsers.core.AbstractMangaParser
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.model.MangaChapter
-import org.koitharu.kotatsu.parsers.model.MangaListFilterOptions
-import org.koitharu.kotatsu.parsers.model.MangaPage
-import org.koitharu.kotatsu.parsers.model.MangaParserSource
-import org.koitharu.kotatsu.parsers.model.SortOrder
-import org.koitharu.kotatsu.parsers.model.search.MangaSearchQuery
-import org.koitharu.kotatsu.parsers.model.search.MangaSearchQueryCapabilities
-import java.util.EnumSet
-
-/**
- * This parser is just for parser development, it should not be used in releases
- */
-class DummyParser(context: MangaLoaderContext) : AbstractMangaParser(context, MangaParserSource.DUMMY) {
-
-	override val configKeyDomain: ConfigKey.Domain
-		get() = ConfigKey.Domain("localhost")
-
-	override val availableSortOrders: Set<SortOrder>
-		get() = EnumSet.allOf(SortOrder::class.java)
-
-	override val searchQueryCapabilities: MangaSearchQueryCapabilities
-		get() = MangaSearchQueryCapabilities()
-
-	override suspend fun getDetails(manga: Manga): Manga = stub(manga)
-
-	override suspend fun getFilterOptions(): MangaListFilterOptions = stub(null)
-
-	override suspend fun getList(query: MangaSearchQuery): List<Manga> = stub(null)
-
-	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> = stub(null)
-
-	private fun stub(manga: Manga?): Nothing {
-		throw UnsupportedSourceException("Usage of Dummy parser", manga)
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/EmptyMangaRepository.kt

@@ -11,7 +11,7 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import java.util.EnumSet
 
-class EmptyMangaRepository(override val source: MangaSource) : MangaRepository {
+open class EmptyMangaRepository(override val source: MangaSource) : MangaRepository {
 
 	override val sortOrders: Set<SortOrder>
 		get() = EnumSet.allOf(SortOrder::class.java)

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaDataRepository.kt

@@ -9,6 +9,8 @@ import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.map
 import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.core.db.TABLE_FAVOURITES
+import org.koitharu.kotatsu.core.db.TABLE_FAVOURITE_CATEGORIES
 import org.koitharu.kotatsu.core.db.TABLE_PREFERENCES
 import org.koitharu.kotatsu.core.db.entity.ContentRating
 import org.koitharu.kotatsu.core.db.entity.MangaPrefsEntity
@@ -41,7 +43,7 @@ class MangaDataRepository @Inject constructor(
 
 	suspend fun saveReaderMode(manga: Manga, mode: ReaderMode) {
 		db.withTransaction {
-			storeManga(manga)
+			storeManga(manga, replaceExisting = false)
 			val entity = db.getPreferencesDao().find(manga.id) ?: newEntity(manga.id)
 			db.getPreferencesDao().upsert(entity.copy(mode = mode.id))
 		}
@@ -49,7 +51,7 @@ class MangaDataRepository @Inject constructor(
 
 	suspend fun saveColorFilter(manga: Manga, colorFilter: ReaderColorFilter?) {
 		db.withTransaction {
-			storeManga(manga)
+			storeManga(manga, replaceExisting = false)
 			val entity = db.getPreferencesDao().find(manga.id) ?: newEntity(manga.id)
 			db.getPreferencesDao().upsert(
 				entity.copy(
@@ -87,10 +89,11 @@ class MangaDataRepository @Inject constructor(
 		return map
 	}
 
-	suspend fun setOverride(mangaId: Long, override: MangaOverride?) {
+	suspend fun setOverride(manga: Manga, override: MangaOverride?) {
 		db.withTransaction {
+			storeManga(manga, replaceExisting = false)
 			val dao = db.getPreferencesDao()
-			val entity = dao.find(mangaId) ?: newEntity(mangaId)
+			val entity = dao.find(manga.id) ?: newEntity(manga.id)
 			dao.upsert(
 				entity.copy(
 					titleOverride = override?.title?.nullIfEmpty(),
@@ -127,7 +130,10 @@ class MangaDataRepository @Inject constructor(
 		else -> null
 	}
 
-	suspend fun storeManga(manga: Manga) {
+	suspend fun storeManga(manga: Manga, replaceExisting: Boolean) {
+		if (!replaceExisting && db.getMangaDao().find(manga.id) != null) {
+			return
+		}
 		db.withTransaction {
 			// avoid storing local manga if remote one is already stored
 			val existing = if (manga.isLocal) {
@@ -185,7 +191,12 @@ class MangaDataRepository @Inject constructor(
 		emitInitialState = emitInitialState,
 	)
 
-	private suspend fun Manga.withCachedChaptersIfNeeded(flag: Boolean): Manga = if (flag && chapters.isNullOrEmpty()) {
+	fun observeFavoritesTrigger(emitInitialState: Boolean) = db.invalidationTracker.createFlow(
+		tables = arrayOf(TABLE_FAVOURITES, TABLE_FAVOURITE_CATEGORIES),
+		emitInitialState = emitInitialState,
+	)
+
+	private suspend fun Manga.withCachedChaptersIfNeeded(flag: Boolean): Manga = if (flag && !isLocal && chapters.isNullOrEmpty()) {
 		val cachedChapters = db.getChaptersDao().findAll(id)
 		if (cachedChapters.isEmpty()) {
 			this

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaLoaderContextImpl.kt

@@ -3,15 +3,8 @@ package org.koitharu.kotatsu.core.parser
 import android.annotation.SuppressLint
 import android.content.Context
 import android.util.Base64
-import android.webkit.WebView
-import androidx.annotation.MainThread
 import androidx.core.os.LocaleListCompat
 import dagger.hilt.android.qualifiers.ApplicationContext
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.runBlocking
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withContext
 import kotlinx.coroutines.withTimeout
 import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.OkHttpClient
@@ -22,11 +15,8 @@ import org.koitharu.kotatsu.core.exceptions.InteractiveActionRequiredException
 import org.koitharu.kotatsu.core.image.BitmapDecoderCompat
 import org.koitharu.kotatsu.core.network.MangaHttpClient
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
-import org.koitharu.kotatsu.core.network.webview.ContinuationResumeWebViewClient
+import org.koitharu.kotatsu.core.network.webview.WebViewExecutor
 import org.koitharu.kotatsu.core.prefs.SourceSettings
-import org.koitharu.kotatsu.core.util.ext.configureForParser
-import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
-import org.koitharu.kotatsu.core.util.ext.sanitizeHeaderValue
 import org.koitharu.kotatsu.core.util.ext.toList
 import org.koitharu.kotatsu.core.util.ext.toMimeType
 import org.koitharu.kotatsu.core.util.ext.use
@@ -37,25 +27,19 @@ import org.koitharu.kotatsu.parsers.config.MangaSourceConfig
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.network.UserAgents
 import org.koitharu.kotatsu.parsers.util.map
-import java.lang.ref.WeakReference
 import java.util.Locale
 import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 import javax.inject.Singleton
-import kotlin.coroutines.EmptyCoroutineContext
-import kotlin.coroutines.resume
-import kotlin.coroutines.suspendCoroutine
 
 @Singleton
 class MangaLoaderContextImpl @Inject constructor(
 	@MangaHttpClient override val httpClient: OkHttpClient,
 	override val cookieJar: MutableCookieJar,
 	@ApplicationContext private val androidContext: Context,
+	private val webViewExecutor: WebViewExecutor,
 ) : MangaLoaderContext() {
 
-	private var webViewCached: WeakReference<WebView>? = null
-	private val webViewUserAgent by lazy { obtainWebViewUserAgent() }
-	private val jsMutex = Mutex()
 	private val jsTimeout = TimeUnit.SECONDS.toMillis(4)
 
 	@Deprecated("Provide a base url")
@@ -63,25 +47,10 @@ class MangaLoaderContextImpl @Inject constructor(
 	override suspend fun evaluateJs(script: String): String? = evaluateJs("", script)
 
 	override suspend fun evaluateJs(baseUrl: String, script: String): String? = withTimeout(jsTimeout) {
-		jsMutex.withLock {
-			withContext(Dispatchers.Main.immediate) {
-				val webView = obtainWebView()
-				if (baseUrl.isNotEmpty()) {
-					suspendCoroutine { cont ->
-						webView.webViewClient = ContinuationResumeWebViewClient(cont)
-						webView.loadDataWithBaseURL(baseUrl, " ", "text/html", null, null)
-					}
-				}
-				suspendCoroutine { cont ->
-					webView.evaluateJavascript(script) { result ->
-						cont.resume(result?.takeUnless { it == "null" })
-					}
-				}
-			}
-		}
+		webViewExecutor.evaluateJs(baseUrl, script)
 	}
 
-	override fun getDefaultUserAgent(): String = webViewUserAgent
+	override fun getDefaultUserAgent(): String = webViewExecutor.defaultUserAgent ?: UserAgents.FIREFOX_MOBILE
 
 	override fun getConfig(source: MangaSource): MangaSourceConfig {
 		return SourceSettings(androidContext, source)
@@ -118,28 +87,4 @@ class MangaLoaderContextImpl @Inject constructor(
 	}
 
 	override fun createBitmap(width: Int, height: Int): Bitmap = BitmapWrapper.create(width, height)
-
-	@MainThread
-	private fun obtainWebView(): WebView = webViewCached?.get() ?: WebView(androidContext).also {
-		it.configureForParser(null)
-		webViewCached = WeakReference(it)
-	}
-
-	private fun obtainWebViewUserAgent(): String {
-		val mainDispatcher = Dispatchers.Main.immediate
-		return if (!mainDispatcher.isDispatchNeeded(EmptyCoroutineContext)) {
-			obtainWebViewUserAgentImpl()
-		} else {
-			runBlocking(mainDispatcher) {
-				obtainWebViewUserAgentImpl()
-			}
-		}
-	}
-
-	@MainThread
-	private fun obtainWebViewUserAgentImpl() = runCatching {
-		obtainWebView().settings.userAgentString.sanitizeHeaderValue()
-	}.onFailure { e ->
-		e.printStackTraceDebug()
-	}.getOrDefault(UserAgents.FIREFOX_MOBILE)
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaParser.kt

@@ -1,12 +0,0 @@
-package org.koitharu.kotatsu.core.parser
-
-import org.koitharu.kotatsu.parsers.MangaLoaderContext
-import org.koitharu.kotatsu.parsers.MangaParser
-import org.koitharu.kotatsu.parsers.model.MangaParserSource
-
-fun MangaParser(source: MangaParserSource, loaderContext: MangaLoaderContext): MangaParser {
-	return when (source) {
-		MangaParserSource.DUMMY -> DummyParser(loaderContext)
-		else -> loaderContext.newParserInstance(source)
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaRepository.kt

@@ -7,6 +7,7 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import org.koitharu.kotatsu.core.cache.MemoryContentCache
 import org.koitharu.kotatsu.core.model.LocalMangaSource
 import org.koitharu.kotatsu.core.model.MangaSourceInfo
+import org.koitharu.kotatsu.core.model.TestMangaSource
 import org.koitharu.kotatsu.core.model.UnknownMangaSource
 import org.koitharu.kotatsu.core.parser.external.ExternalMangaRepository
 import org.koitharu.kotatsu.core.parser.external.ExternalMangaSource
@@ -85,11 +86,16 @@ interface MangaRepository {
 
 		private fun createRepository(source: MangaSource): MangaRepository? = when (source) {
 			is MangaParserSource -> ParserMangaRepository(
-				parser = MangaParser(source, loaderContext),
+				parser = loaderContext.newParserInstance(source),
 				cache = contentCache,
 				mirrorSwitcher = mirrorSwitcher,
 			)
 
+			TestMangaSource -> TestMangaRepository(
+				loaderContext = loaderContext,
+				cache = contentCache,
+			)
+
 			is ExternalMangaSource -> if (source.isAvailable(context)) {
 				ExternalMangaRepository(
 					contentResolver = context.contentResolver,

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/external/ExternalPluginContentSource.kt

@@ -53,6 +53,9 @@ class ExternalPluginContentSource(
 		filter.states.forEach { uri.appendQueryParameter("state", it.name) }
 		filter.locale?.let { uri.appendQueryParameter("locale", it.language) }
 		filter.contentRating.forEach { uri.appendQueryParameter("content_rating", it.name) }
+		if (!filter.author.isNullOrEmpty()) {
+			uri.appendQueryParameter("author", filter.author)
+		}
 		if (!filter.query.isNullOrEmpty()) {
 			uri.appendQueryParameter("query", filter.query)
 		}
@@ -196,6 +199,7 @@ class ExternalPluginContentSource(
 							isYearSupported = cursor.getBooleanOrDefault(COLUMN_YEAR, false),
 							isYearRangeSupported = cursor.getBooleanOrDefault(COLUMN_YEAR_RANGE, false),
 							isOriginalLocaleSupported = cursor.getBooleanOrDefault(COLUMN_ORIGINAL_LOCALE, false),
+							isAuthorSearchSupported = cursor.getBooleanOrDefault(COLUMN_AUTHOR, false),
 						),
 					)
 				} else {

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/favicon/FaviconFetcher.kt

@@ -10,15 +10,21 @@ import coil3.ColorImage
 import coil3.ImageLoader
 import coil3.asImage
 import coil3.decode.DataSource
+import coil3.decode.ImageSource
 import coil3.fetch.FetchResult
 import coil3.fetch.Fetcher
 import coil3.fetch.ImageFetchResult
+import coil3.fetch.SourceFetchResult
 import coil3.request.Options
 import coil3.size.pxOrElse
 import coil3.toAndroidUri
+import coil3.toBitmap
+import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.ensureActive
 import kotlinx.coroutines.runInterruptible
+import okio.FileSystem
 import okio.IOException
+import okio.Path.Companion.toOkioPath
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.core.model.MangaSource
@@ -26,9 +32,16 @@ import org.koitharu.kotatsu.core.parser.EmptyMangaRepository
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.parser.ParserMangaRepository
 import org.koitharu.kotatsu.core.parser.external.ExternalMangaRepository
+import org.koitharu.kotatsu.core.util.MimeTypes
 import org.koitharu.kotatsu.core.util.ext.fetch
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.core.util.ext.toMimeTypeOrNull
+import org.koitharu.kotatsu.local.data.FaviconCache
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
-import kotlin.coroutines.coroutineContext
+import org.koitharu.kotatsu.local.data.LocalStorageCache
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import java.io.File
+import javax.inject.Inject
 import coil3.Uri as CoilUri
 
 class FaviconFetcher(
@@ -36,6 +49,7 @@ class FaviconFetcher(
 	private val options: Options,
 	private val imageLoader: ImageLoader,
 	private val mangaRepositoryFactory: MangaRepository.Factory,
+	private val localStorageCache: LocalStorageCache,
 ) : Fetcher {
 
 	override suspend fun fetch(): FetchResult? {
@@ -61,15 +75,29 @@ class FaviconFetcher(
 			options.size.width.pxOrElse { FALLBACK_SIZE },
 			options.size.height.pxOrElse { FALLBACK_SIZE },
 		)
+		val cacheKey = options.diskCacheKey ?: "${repository.source.name}_$sizePx"
+		if (options.diskCachePolicy.readEnabled) {
+			localStorageCache[cacheKey]?.let { file ->
+				return SourceFetchResult(
+					source = ImageSource(file.toOkioPath(), FileSystem.SYSTEM),
+					mimeType = MimeTypes.probeMimeType(file)?.toString(),
+					dataSource = DataSource.DISK,
+				)
+			}
+		}
 		var favicons = repository.getFavicons()
 		var lastError: Exception? = null
 		while (favicons.isNotEmpty()) {
-			coroutineContext.ensureActive()
+			currentCoroutineContext().ensureActive()
 			val icon = favicons.find(sizePx) ?: throwNSEE(lastError)
 			try {
 				val result = imageLoader.fetch(icon.url, options)
 				if (result != null) {
-					return result
+					return if (options.diskCachePolicy.writeEnabled) {
+						writeToCache(cacheKey, result)
+					} else {
+						result
+					}
 				} else {
 					favicons -= icon
 				}
@@ -97,8 +125,39 @@ class FaviconFetcher(
 		)
 	}
 
-	class Factory(
+	private suspend fun writeToCache(key: String, result: FetchResult): FetchResult = runCatchingCancellable {
+		when (result) {
+			is ImageFetchResult -> {
+				if (result.dataSource == DataSource.NETWORK) {
+					localStorageCache.set(key, result.image.toBitmap()).asFetchResult()
+				} else {
+					result
+				}
+			}
+
+			is SourceFetchResult -> {
+				if (result.dataSource == DataSource.NETWORK) {
+					result.source.source().use {
+						localStorageCache.set(key, it, result.mimeType?.toMimeTypeOrNull()).asFetchResult()
+					}
+				} else {
+					result
+				}
+			}
+		}
+	}.onFailure {
+		it.printStackTraceDebug()
+	}.getOrDefault(result)
+
+	private fun File.asFetchResult() = SourceFetchResult(
+		source = ImageSource(toOkioPath(), FileSystem.SYSTEM),
+		mimeType = MimeTypes.probeMimeType(this)?.toString(),
+		dataSource = DataSource.DISK,
+	)
+
+	class Factory @Inject constructor(
 		private val mangaRepositoryFactory: MangaRepository.Factory,
+		@FaviconCache private val faviconCache: LocalStorageCache,
 	) : Fetcher.Factory<CoilUri> {
 
 		override fun create(
@@ -106,7 +165,7 @@ class FaviconFetcher(
 			options: Options,
 			imageLoader: ImageLoader
 		): Fetcher? = if (data.scheme == URI_SCHEME_FAVICON) {
-			FaviconFetcher(data.toAndroidUri(), options, imageLoader, mangaRepositoryFactory)
+			FaviconFetcher(data.toAndroidUri(), options, imageLoader, mangaRepositoryFactory, faviconCache)
 		} else {
 			null
 		}

app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/AppSettings.kt

@@ -15,12 +15,17 @@ import androidx.core.os.LocaleListCompat
 import androidx.documentfile.provider.DocumentFile
 import androidx.preference.PreferenceManager
 import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.onStart
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.ZoomMode
 import org.koitharu.kotatsu.core.network.DoHProvider
 import org.koitharu.kotatsu.core.util.ext.connectivityManager
 import org.koitharu.kotatsu.core.util.ext.getEnumValue
-import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeChanges
 import org.koitharu.kotatsu.core.util.ext.putAll
 import org.koitharu.kotatsu.core.util.ext.putEnumValue
 import org.koitharu.kotatsu.core.util.ext.takeIfReadable
@@ -82,6 +87,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isNavBarPinned: Boolean
 		get() = prefs.getBoolean(KEY_NAV_PINNED, false)
 
+	val isMainFabEnabled: Boolean
+		get() = prefs.getBoolean(KEY_MAIN_FAB, true)
+
 	var gridSize: Int
 		get() = prefs.getInt(KEY_GRID_SIZE, 100)
 		set(value) = prefs.edit { putInt(KEY_GRID_SIZE, value) }
@@ -130,6 +138,11 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_READER_DOUBLE_PAGES, false)
 		set(value) = prefs.edit { putBoolean(KEY_READER_DOUBLE_PAGES, value) }
 
+	@get:FloatRange(0.0, 1.0)
+	var readerDoublePagesSensitivity: Float
+		get() = prefs.getFloat(KEY_READER_DOUBLE_PAGES_SENSITIVITY, 0.5f)
+		set(@FloatRange(0.0, 1.0) value) = prefs.edit { putFloat(KEY_READER_DOUBLE_PAGES_SENSITIVITY, value) }
+
 	val readerScreenOrientation: Int
 		get() = prefs.getString(KEY_READER_ORIENTATION, null)?.toIntOrNull()
 			?: ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
@@ -480,6 +493,10 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_WEBTOON_GAPS, false)
 		set(value) = prefs.edit { putBoolean(KEY_WEBTOON_GAPS, value) }
 
+	var isWebtoonPullGestureEnabled: Boolean
+		get() = prefs.getBoolean(KEY_WEBTOON_PULL_GESTURE, false)
+		set(value) = prefs.edit { putBoolean(KEY_WEBTOON_PULL_GESTURE, value) }
+
 	@get:FloatRange(from = 0.0, to = 0.5)
 	val defaultWebtoonZoomOut: Float
 		get() = prefs.getInt(KEY_WEBTOON_ZOOM_OUT, 0).coerceIn(0, 50) / 100f
@@ -494,6 +511,10 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 			)
 		}
 
+	var isReaderAutoscrollFabVisible: Boolean
+		get() = prefs.getBoolean(KEY_READER_AUTOSCROLL_FAB, true)
+		set(value) = prefs.edit { putBoolean(KEY_READER_AUTOSCROLL_FAB, value) }
+
 	val isPagesPreloadEnabled: Boolean
 		get() {
 			if (isBackgroundNetworkRestricted()) {
@@ -509,6 +530,16 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val is32BitColorsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_32BIT_COLOR, false)
 
+	val isDiscordRpcEnabled: Boolean
+		get() = prefs.getBoolean(KEY_DISCORD_RPC, false)
+
+	val isDiscordRpcSkipNsfw: Boolean
+		get() = prefs.getBoolean(KEY_DISCORD_RPC_SKIP_NSFW, false)
+
+	var discordToken: String?
+		get() = prefs.getString(KEY_DISCORD_TOKEN, null)?.trim()?.nullIfEmpty()
+		set(value) = prefs.edit { putString(KEY_DISCORD_TOKEN, value?.nullIfEmpty()) }
+
 	val isPeriodicalBackupEnabled: Boolean
 		get() = prefs.getBoolean(KEY_BACKUP_PERIODICAL_ENABLED, false)
 
@@ -598,7 +629,12 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		prefs.unregisterOnSharedPreferenceChangeListener(listener)
 	}
 
-	fun observe() = prefs.observe()
+	fun observeChanges() = prefs.observeChanges()
+
+	fun observe(vararg keys: String): Flow<String?> = prefs.observeChanges()
+		.filter { key -> key == null || key in keys }
+		.onStart { emit(null) }
+		.flowOn(Dispatchers.IO)
 
 	fun getAllValues(): Map<String, *> = prefs.all
 
@@ -642,6 +678,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_REMOTE_SOURCES = "remote_sources"
 		const val KEY_LOCAL_STORAGE = "local_storage"
 		const val KEY_READER_DOUBLE_PAGES = "reader_double_pages"
+		const val KEY_READER_DOUBLE_PAGES_SENSITIVITY = "reader_double_pages_sensitivity"
 		const val KEY_READER_ZOOM_BUTTONS = "reader_zoom_buttons"
 		const val KEY_READER_CONTROL_LTR = "reader_taps_ltr"
 		const val KEY_READER_NAVIGATION_INVERTED = "reader_navigation_inverted"
@@ -721,6 +758,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_WEBTOON_GAPS = "webtoon_gaps"
 		const val KEY_WEBTOON_ZOOM = "webtoon_zoom"
 		const val KEY_WEBTOON_ZOOM_OUT = "webtoon_zoom_out"
+		const val KEY_WEBTOON_PULL_GESTURE = "webtoon_pull_gesture"
 		const val KEY_PREFETCH_CONTENT = "prefetch_content"
 		const val KEY_APP_LOCALE = "app_locale"
 		const val KEY_SOURCES_GRID = "sources_grid"
@@ -728,6 +766,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_TIPS_CLOSED = "tips_closed"
 		const val KEY_SSL_BYPASS = "ssl_bypass"
 		const val KEY_READER_AUTOSCROLL_SPEED = "as_speed"
+		const val KEY_READER_AUTOSCROLL_FAB = "as_fab"
 		const val KEY_MIRROR_SWITCHING = "mirror_switching"
 		const val KEY_PROXY = "proxy"
 		const val KEY_PROXY_TYPE = "proxy_type_2"
@@ -743,6 +782,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_NAV_MAIN = "nav_main"
 		const val KEY_NAV_LABELS = "nav_labels"
 		const val KEY_NAV_PINNED = "nav_pinned"
+		const val KEY_MAIN_FAB = "main_fab"
 		const val KEY_32BIT_COLOR = "enhanced_colors"
 		const val KEY_SOURCES_ORDER = "sources_sort_order"
 		const val KEY_SOURCES_CATALOG = "sources_catalog"
@@ -768,6 +808,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_BACKUP_TG_CHAT = "backup_periodic_tg_chat_id"
 		const val KEY_MANGA_LIST_BADGES = "manga_list_badges"
 		const val KEY_TAGS_WARNINGS = "tags_warnings"
+		const val KEY_DISCORD_RPC = "discord_rpc"
+		const val KEY_DISCORD_RPC_SKIP_NSFW = "discord_rpc_skip_nsfw"
+		const val KEY_DISCORD_TOKEN = "discord_token"
 
 		// keys for non-persistent preferences
 		const val KEY_APP_VERSION = "app_version"
@@ -780,6 +823,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_PROXY_TEST = "proxy_test"
 		const val KEY_OPEN_BROWSER = "open_browser"
 		const val KEY_HANDLE_LINKS = "handle_links"
+		const val KEY_BACKUP_TG = "backup_periodic_tg"
 		const val KEY_BACKUP_TG_OPEN = "backup_periodic_tg_open"
 		const val KEY_BACKUP_TG_TEST = "backup_periodic_tg_test"
 		const val KEY_CLEAR_MANGA_DATA = "manga_data_clear"

app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/AppSettingsObserver.kt

@@ -10,7 +10,7 @@ import kotlinx.coroutines.flow.transform
 fun <T> AppSettings.observeAsFlow(key: String, valueProducer: AppSettings.() -> T) = flow {
 	var lastValue: T = valueProducer()
 	emit(lastValue)
-	observe().collect {
+	observeChanges().collect {
 		if (it == key) {
 			val value = valueProducer()
 			if (value != lastValue) {
@@ -25,7 +25,7 @@ fun <T> AppSettings.observeAsStateFlow(
 	scope: CoroutineScope,
 	key: String,
 	valueProducer: AppSettings.() -> T,
-): StateFlow<T> = observe().transform {
+): StateFlow<T> = observeChanges().transform {
 	if (it == key) {
 		emit(valueProducer())
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/SourceSettings.kt

@@ -66,8 +66,9 @@ class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig
 
 	companion object {
 
-		const val KEY_SORT_ORDER = "sort_order"
-		const val KEY_SLOWDOWN = "slowdown"
+		const val KEY_DOMAIN = "domain"
 		const val KEY_NO_CAPTCHA = "no_captcha"
+		const val KEY_SLOWDOWN = "slowdown"
+		const val KEY_SORT_ORDER = "sort_order"
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/BasePreferenceFragment.kt

@@ -1,9 +1,11 @@
 package org.koitharu.kotatsu.core.ui
 
 import android.content.Context
+import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.view.View
 import androidx.annotation.StringRes
+import androidx.core.content.ContextCompat
 import androidx.core.view.OnApplyWindowInsetsListener
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
@@ -86,6 +88,12 @@ abstract class BasePreferenceFragment(@StringRes private val titleId: Int) :
 		(activity as? SettingsActivity)?.setSectionTitle(title)
 	}
 
+	protected fun getWarningIcon(): Drawable? = context?.let { ctx ->
+		ContextCompat.getDrawable(ctx, R.drawable.ic_alert_outline)?.also {
+			it.setTint(ContextCompat.getColor(ctx, R.color.warning))
+		}
+	}
+
 	private fun focusPreference(key: String) {
 		val pref = findPreference<Preference>(key)
 		if (pref == null) {

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/BaseViewModel.kt

@@ -22,6 +22,7 @@ import org.koitharu.kotatsu.core.util.ext.EventFlow
 import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
 import org.koitharu.kotatsu.core.util.ext.call
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import kotlin.coroutines.AbstractCoroutineContextElement
 import kotlin.coroutines.CoroutineContext
 import kotlin.coroutines.EmptyCoroutineContext
 
@@ -43,13 +44,13 @@ abstract class BaseViewModel : ViewModel() {
 		context: CoroutineContext = EmptyCoroutineContext,
 		start: CoroutineStart = CoroutineStart.DEFAULT,
 		block: suspend CoroutineScope.() -> Unit
-	): Job = viewModelScope.launch(context + createErrorHandler(), start, block)
+	): Job = viewModelScope.launch(context.withDefaultExceptionHandler(), start, block)
 
 	protected fun launchLoadingJob(
 		context: CoroutineContext = EmptyCoroutineContext,
 		start: CoroutineStart = CoroutineStart.DEFAULT,
 		block: suspend CoroutineScope.() -> Unit
-	): Job = viewModelScope.launch(context + createErrorHandler(), start) {
+	): Job = viewModelScope.launch(context.withDefaultExceptionHandler(), start) {
 		loadingCounter.increment()
 		try {
 			block()
@@ -80,10 +81,28 @@ abstract class BaseViewModel : ViewModel() {
 
 	protected fun MutableStateFlow<Int>.decrement() = update { it - 1 }
 
-	private fun createErrorHandler() = CoroutineExceptionHandler { _, throwable ->
-		throwable.printStackTraceDebug()
-		if (throwable !is CancellationException) {
-			errorEvent.call(throwable)
+	private fun CoroutineContext.withDefaultExceptionHandler() =
+		if (this[CoroutineExceptionHandler.Key] is EventExceptionHandler) {
+			this
+		} else {
+			this + EventExceptionHandler(errorEvent)
+		}
+
+	protected object SkipErrors : AbstractCoroutineContextElement(Key) {
+
+		private object Key : CoroutineContext.Key<SkipErrors>
+	}
+
+	protected class EventExceptionHandler(
+		private val event: MutableEventFlow<Throwable>,
+	) : AbstractCoroutineContextElement(CoroutineExceptionHandler),
+		CoroutineExceptionHandler {
+
+		override fun handleException(context: CoroutineContext, exception: Throwable) {
+			exception.printStackTraceDebug()
+			if (context[SkipErrors.key] == null && exception !is CancellationException) {
+				event.call(exception)
+			}
 		}
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/OnContextClickListenerCompat.kt

@@ -1,8 +0,0 @@
-package org.koitharu.kotatsu.core.ui
-
-import android.view.View
-
-fun interface OnContextClickListenerCompat {
-
-	fun onContextClick(v: View): Boolean
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/dialog/RememberCheckListener.kt

@@ -10,7 +10,7 @@ class RememberCheckListener(
 	var isChecked: Boolean = initialValue
 		private set
 
-	override fun onCheckedChanged(buttonView: CompoundButton?, isChecked: Boolean) {
+	override fun onCheckedChanged(buttonView: CompoundButton, isChecked: Boolean) {
 		this.isChecked = isChecked
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/FaviconView.kt

@@ -10,7 +10,7 @@ import coil3.asImage
 import coil3.request.Disposable
 import coil3.request.ImageRequest
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.exceptions.resolve.CaptchaHandler.Companion.ignoreCaptchaErrors
+import org.koitharu.kotatsu.core.exceptions.resolve.CaptchaHandler.Companion.suppressCaptchaErrors
 import org.koitharu.kotatsu.core.image.CoilImageView
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.util.ext.isAnimationsEnabled
@@ -57,7 +57,7 @@ class FaviconView @JvmOverloads constructor(
 				.fallback(fallbackFactory)
 				.placeholder(placeholderFactory)
 				.mangaSourceExtra(mangaSource)
-				.ignoreCaptchaErrors()
+				.suppressCaptchaErrors()
 				.build(),
 		)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/list/AdapterDelegateClickListenerAdapter.kt

@@ -2,17 +2,16 @@ package org.koitharu.kotatsu.core.ui.list
 
 import android.view.View
 import android.view.View.OnClickListener
+import android.view.View.OnContextClickListener
 import android.view.View.OnLongClickListener
 import androidx.core.util.Function
 import com.hannesdorfmann.adapterdelegates4.dsl.AdapterDelegateViewBindingViewHolder
-import org.koitharu.kotatsu.core.ui.OnContextClickListenerCompat
-import org.koitharu.kotatsu.core.util.ext.setOnContextClickListenerCompat
 
 class AdapterDelegateClickListenerAdapter<I, O>(
 	private val adapterDelegate: AdapterDelegateViewBindingViewHolder<out I, *>,
 	private val clickListener: OnListItemClickListener<O>,
 	private val itemMapper: Function<I, O>,
-) : OnClickListener, OnLongClickListener, OnContextClickListenerCompat {
+) : OnClickListener, OnLongClickListener, OnContextClickListener {
 
 	override fun onClick(v: View) {
 		clickListener.onItemClick(mappedItem(), v)
@@ -33,7 +32,7 @@ class AdapterDelegateClickListenerAdapter<I, O>(
 	fun attach(itemView: View) {
 		itemView.setOnClickListener(this)
 		itemView.setOnLongClickListener(this)
-		itemView.setOnContextClickListenerCompat(this)
+		itemView.setOnContextClickListener(this)
 	}
 
 	companion object {

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/list/ListSelectionController.kt

@@ -186,6 +186,7 @@ class ListSelectionController(
 
 		override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
 			if (event == Lifecycle.Event.ON_CREATE) {
+				source.lifecycle.removeObserver(this)
 				val registry = registryOwner.savedStateRegistry
 				registry.registerSavedStateProvider(PROVIDER_NAME, this@ListSelectionController)
 				val state = registry.consumeRestoredStateForKey(PROVIDER_NAME)

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/util/ActionModeDelegate.kt

@@ -1,7 +1,6 @@
 package org.koitharu.kotatsu.core.ui.util
 
 import android.graphics.Color
-import android.os.Build
 import android.view.ViewGroup
 import android.view.Window
 import androidx.activity.OnBackPressedCallback
@@ -14,7 +13,6 @@ import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.updateLayoutParams
 import androidx.lifecycle.DefaultLifecycleObserver
 import androidx.lifecycle.LifecycleOwner
-import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.util.ext.getThemeColor
 import com.google.android.material.R as materialR
 
@@ -37,14 +35,10 @@ class ActionModeDelegate : OnBackPressedCallback(false) {
 		listeners?.forEach { it.onActionModeStarted(mode) }
 		if (window != null) {
 			val ctx = window.context
-			val actionModeColor = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-				ColorUtils.compositeColors(
-					ContextCompat.getColor(ctx, materialR.color.m3_appbar_overlay_color),
-					ctx.getThemeColor(materialR.attr.colorSurface),
-				)
-			} else {
-				ContextCompat.getColor(ctx, R.color.kotatsu_surface)
-			}
+			val actionModeColor = ColorUtils.compositeColors(
+				ContextCompat.getColor(ctx, materialR.color.m3_appbar_overlay_color),
+				ctx.getThemeColor(materialR.attr.colorSurface),
+			)
 			defaultStatusBarColor = window.statusBarColor
 			window.statusBarColor = actionModeColor
 			val insets = ViewCompat.getRootWindowInsets(window.decorView)

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/util/PopupMenuMediator.kt

@@ -4,12 +4,10 @@ import android.view.MenuItem
 import android.view.View
 import androidx.appcompat.widget.PopupMenu
 import androidx.core.view.MenuProvider
-import org.koitharu.kotatsu.core.ui.OnContextClickListenerCompat
-import org.koitharu.kotatsu.core.util.ext.setOnContextClickListenerCompat
 
 class PopupMenuMediator(
 	private val provider: MenuProvider,
-) : View.OnLongClickListener, OnContextClickListenerCompat, PopupMenu.OnMenuItemClickListener,
+) : View.OnLongClickListener, View.OnContextClickListener, PopupMenu.OnMenuItemClickListener,
 	PopupMenu.OnDismissListener {
 
 	override fun onContextClick(v: View): Boolean = onLongClick(v)
@@ -37,6 +35,6 @@ class PopupMenuMediator(
 
 	fun attach(view: View) {
 		view.setOnLongClickListener(this)
-		view.setOnContextClickListenerCompat(this)
+		view.setOnContextClickListener(this)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/StackLayout.kt

@@ -22,7 +22,7 @@ open class StackLayout @JvmOverloads constructor(
 		val h = b - t - paddingTop - paddingBottom
 		visibleChildren.clear()
 		children.filterNotTo(visibleChildren) { it.isGone }
-		if (w <= 0 || h <= 0 || visibleChildren.isEmpty) {
+		if (w <= 0 || h <= 0 || visibleChildren.isEmpty()) {
 			return
 		}
 		val xStep = w / (visibleChildren.size + 1)

app/src/main/kotlin/org/koitharu/kotatsu/core/util/MultiMutex.kt

@@ -1,61 +1,38 @@
 package org.koitharu.kotatsu.core.util
 
-import androidx.collection.ArrayMap
+import androidx.annotation.VisibleForTesting
 import kotlinx.coroutines.sync.Mutex
+import java.util.concurrent.ConcurrentHashMap
 import kotlin.contracts.InvocationKind
 import kotlin.contracts.contract
 
-open class MultiMutex<T : Any> : Set<T> {
+open class MultiMutex<T : Any> {
 
-	private val delegates = ArrayMap<T, Mutex>()
+	private val delegates = ConcurrentHashMap<T, Mutex>()
 
-	override val size: Int
-		get() = delegates.size
+	@VisibleForTesting
+	val size: Int
+		get() = delegates.count { it.value.isLocked }
 
-	override fun contains(element: T): Boolean = synchronized(delegates) {
-		delegates.containsKey(element)
-	}
+	fun isNotEmpty() = delegates.any { it.value.isLocked }
 
-	override fun containsAll(elements: Collection<T>): Boolean = synchronized(delegates) {
-		elements.all { x -> delegates.containsKey(x) }
-	}
-
-	override fun isEmpty(): Boolean = delegates.isEmpty()
-
-	override fun iterator(): Iterator<T> = synchronized(delegates) {
-		delegates.keys.toList()
-	}.iterator()
-
-	fun isLocked(element: T): Boolean = synchronized(delegates) {
-		delegates[element]?.isLocked == true
-	}
-
-	fun tryLock(element: T): Boolean {
-		val mutex = synchronized(delegates) {
-			delegates.getOrPut(element, ::Mutex)
-		}
-		return mutex.tryLock()
-	}
+	fun isEmpty() = delegates.none { it.value.isLocked }
 
 	suspend fun lock(element: T) {
-		val mutex = synchronized(delegates) {
-			delegates.getOrPut(element, ::Mutex)
-		}
+		val mutex = delegates.computeIfAbsent(element) { Mutex() }
 		mutex.lock()
 	}
 
 	fun unlock(element: T) {
-		synchronized(delegates) {
-			delegates.remove(element)?.unlock()
-		}
+		delegates[element]?.unlock()
 	}
 
 	suspend inline fun <R> withLock(element: T, block: () -> R): R {
 		contract {
 			callsInPlace(block, InvocationKind.EXACTLY_ONCE)
 		}
+		lock(element)
 		return try {
-			lock(element)
 			block()
 		} finally {
 			unlock(element)

app/src/main/kotlin/org/koitharu/kotatsu/core/util/WorkServiceStopHelper.kt

@@ -1,46 +0,0 @@
-package org.koitharu.kotatsu.core.util
-
-import android.annotation.SuppressLint
-import androidx.work.WorkInfo
-import androidx.work.WorkManager
-import androidx.work.WorkQuery
-import androidx.work.impl.foreground.SystemForegroundService
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.collectLatest
-import kotlinx.coroutines.flow.distinctUntilChanged
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.launch
-import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
-import javax.inject.Provider
-
-/**
- * Workaround for issue
- * https://issuetracker.google.com/issues/270245927
- * https://issuetracker.google.com/issues/280504155
- */
-class WorkServiceStopHelper(
-	private val workManagerProvider: Provider<WorkManager>,
-) {
-
-	fun setup() {
-		processLifecycleScope.launch(Dispatchers.Default) {
-			workManagerProvider.get()
-				.getWorkInfosFlow(WorkQuery.fromStates(WorkInfo.State.RUNNING))
-				.map { it.isEmpty() }
-				.distinctUntilChanged()
-				.collectLatest {
-					if (it) {
-						delay(1_000)
-						stopWorkerService()
-					}
-				}
-		}
-	}
-
-	@SuppressLint("RestrictedApi")
-	private fun stopWorkerService() {
-		SystemForegroundService.getInstance()?.stop()
-	}
-}
-

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Flow.kt

@@ -134,6 +134,28 @@ fun <T1, T2, T3, T4, T5, T6, R> combine(
 	)
 }
 
+@Suppress("UNCHECKED_CAST")
+fun <T1, T2, T3, T4, T5, T6, T7, R> combine(
+	flow: Flow<T1>,
+	flow2: Flow<T2>,
+	flow3: Flow<T3>,
+	flow4: Flow<T4>,
+	flow5: Flow<T5>,
+	flow6: Flow<T6>,
+	flow7: Flow<T7>,
+	transform: suspend (T1, T2, T3, T4, T5, T6, T7) -> R,
+): Flow<R> = combine(flow, flow2, flow3, flow4, flow5, flow6, flow7) { args: Array<*> ->
+	transform(
+		args[0] as T1,
+		args[1] as T2,
+		args[2] as T3,
+		args[3] as T4,
+		args[4] as T5,
+		args[5] as T6,
+		args[6] as T7,
+	)
+}
+
 suspend fun <T : Any> Flow<T?>.firstNotNull(): T = checkNotNull(first { x -> x != null })
 
 suspend fun <T : Any> Flow<T?>.firstNotNullOrNull(): T? = firstOrNull { x -> x != null }

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/IO.kt

@@ -1,5 +1,8 @@
 package org.koitharu.kotatsu.core.util.ext
 
+import android.content.ContentResolver
+import android.net.Uri
+import androidx.annotation.CheckResult
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.currentCoroutineContext
@@ -12,6 +15,7 @@ import okio.FileSystem
 import okio.IOException
 import okio.Path
 import okio.Source
+import okio.source
 import org.koitharu.kotatsu.core.util.CancellableSource
 import org.koitharu.kotatsu.core.util.progress.ProgressResponseBody
 import java.io.ByteArrayOutputStream
@@ -57,3 +61,8 @@ fun FileSystem.isRegularFile(path: Path) = try {
 } catch (_: IOException) {
 	false
 }
+
+@CheckResult
+fun ContentResolver.openSource(uri: Uri): Source = checkNotNull(openInputStream(uri)) {
+	"Cannot open input stream from $uri"
+}.source()

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Preferences.kt

@@ -37,7 +37,7 @@ fun <E : Enum<E>> SharedPreferences.Editor.putEnumValue(key: String, value: E?)
 	putString(key, value?.name)
 }
 
-fun SharedPreferences.observe(): Flow<String?> = callbackFlow {
+fun SharedPreferences.observeChanges(): Flow<String?> = callbackFlow {
 	val listener = SharedPreferences.OnSharedPreferenceChangeListener { _, key ->
 		trySendBlocking(key)
 	}
@@ -49,7 +49,7 @@ fun SharedPreferences.observe(): Flow<String?> = callbackFlow {
 
 fun <T> SharedPreferences.observe(key: String, valueProducer: suspend () -> T): Flow<T> = flow {
 	emit(valueProducer())
-	observe().collect { upstreamKey ->
+	observeChanges().collect { upstreamKey ->
 		if (upstreamKey == key) {
 			emit(valueProducer())
 		}

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Throwable.kt

@@ -6,6 +6,7 @@ import android.database.sqlite.SQLiteFullException
 import androidx.annotation.DrawableRes
 import coil3.network.HttpException
 import com.davemorrissey.labs.subscaleview.decoder.ImageDecodeException
+import kotlinx.coroutines.CancellationException
 import okhttp3.Response
 import okhttp3.internal.http2.StreamResetException
 import okio.FileNotFoundException
@@ -52,6 +53,7 @@ import java.net.SocketException
 import java.net.SocketTimeoutException
 import java.net.UnknownHostException
 import java.util.Locale
+import java.util.zip.ZipException
 
 private const val MSG_NO_SPACE_LEFT = "No space left on device"
 private const val MSG_CONNECTION_RESET = "Connection reset"
@@ -63,6 +65,7 @@ fun Throwable.getDisplayMessage(resources: Resources): String = getDisplayMessag
 	?: resources.getString(R.string.error_occurred)
 
 private fun Throwable.getDisplayMessageOrNull(resources: Resources): String? = when (this) {
+	is CancellationException -> cause?.getDisplayMessageOrNull(resources) ?: message
 	is CaughtException -> cause.getDisplayMessageOrNull(resources)
 	is WrapperIOException -> cause.getDisplayMessageOrNull(resources)
 	is ScrobblerAuthRequiredException -> resources.getString(
@@ -92,6 +95,7 @@ private fun Throwable.getDisplayMessageOrNull(resources: Resources): String? = w
 		}
 	}
 
+	is ZipException -> resources.getString(R.string.error_corrupted_zip, this.message.orEmpty())
 	is SQLiteFullException -> resources.getString(R.string.error_no_space_left)
 	is UnsupportedFileException -> resources.getString(R.string.text_file_not_supported)
 	is BadBackupFormatException -> resources.getString(R.string.unsupported_backup_message)
@@ -168,8 +172,9 @@ fun Throwable.getCauseUrl(): String? = when (this) {
 }
 
 private fun getHttpDisplayMessage(statusCode: Int, resources: Resources): String? = when (statusCode) {
-	404 -> resources.getString(R.string.not_found_404)
-	403 -> resources.getString(R.string.access_denied_403)
+	HttpURLConnection.HTTP_NOT_FOUND -> resources.getString(R.string.not_found_404)
+	HttpURLConnection.HTTP_FORBIDDEN -> resources.getString(R.string.access_denied_403)
+	HttpURLConnection.HTTP_GATEWAY_TIMEOUT -> resources.getString(R.string.network_unavailable)
 	in 500..599 -> resources.getString(R.string.server_error, statusCode)
 	else -> null
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/View.kt

@@ -28,7 +28,6 @@ import com.google.android.material.progressindicator.BaseProgressIndicator
 import com.google.android.material.slider.RangeSlider
 import com.google.android.material.slider.Slider
 import com.google.android.material.tabs.TabLayout
-import org.koitharu.kotatsu.core.ui.OnContextClickListenerCompat
 import kotlin.math.roundToInt
 
 fun View.hasGlobalPoint(x: Int, y: Int): Boolean {
@@ -169,12 +168,16 @@ fun BaseProgressIndicator<*>.showOrHide(value: Boolean) {
 	}
 }
 
-fun View.setOnContextClickListenerCompat(listener: OnContextClickListenerCompat) {
-	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-		setOnContextClickListener(listener::onContextClick)
+fun View.setTooltipCompat(tooltip: CharSequence?) {
+	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+		tooltipText = tooltip
+	} else if (!isLongClickable) { // don't use TooltipCompat if has a LongClickListener
+		TooltipCompat.setTooltipText(this, tooltip)
 	}
 }
 
+fun View.setTooltipCompat(@StringRes tooltipResId: Int) = setTooltipCompat(context.getString(tooltipResId))
+
 val Toolbar.menuView: ActionMenuView?
 	get() {
 		menu // to call ensureMenu()
@@ -201,7 +204,7 @@ fun Chip.setProgressIcon() {
 fun View.setContentDescriptionAndTooltip(@StringRes resId: Int) {
 	val text = resources.getString(resId)
 	contentDescription = text
-	TooltipCompat.setTooltipText(this, text)
+	setTooltipCompat(text)
 }
 
 fun View.getWindowBounds(): Rect {

app/src/main/kotlin/org/koitharu/kotatsu/details/data/MangaDetails.kt

@@ -31,13 +31,12 @@ data class MangaDetails(
 	val id: Long
 		get() = manga.id
 
-	val chapters: Map<String?, List<MangaChapter>> = manga.chapters?.groupBy { it.branch }.orEmpty()
-
-	val branches: Set<String?>
-		get() = chapters.keys
-
 	val allChapters: List<MangaChapter> by lazy { mergeChapters() }
 
+	val chapters: Map<String?, List<MangaChapter>> by lazy {
+		allChapters.groupBy { it.branch }
+	}
+
 	val isLocal
 		get() = manga.isLocal
 
@@ -51,7 +50,22 @@ data class MangaDetails(
 			.ifNullOrEmpty { localManga?.manga?.coverUrl }
 			?.nullIfEmpty()
 
-	fun toManga() = manga.withOverride(override)
+	private val mergedManga by lazy {
+		if (localManga == null) {
+			// fast path
+			manga.withOverride(override)
+		} else {
+			manga.copy(
+				title = override?.title.ifNullOrEmpty { manga.title },
+				coverUrl = override?.coverUrl.ifNullOrEmpty { manga.coverUrl },
+				largeCoverUrl = override?.coverUrl.ifNullOrEmpty { manga.largeCoverUrl },
+				contentRating = override?.contentRating ?: manga.contentRating,
+				chapters = allChapters,
+			)
+		}
+	}
+
+	fun toManga() = mergedManga
 
 	fun getLocale(): Locale? {
 		findAppropriateLocale(chapters.keys.singleOrNull())?.let {

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/DetailsLoadUseCase.kt

@@ -9,30 +9,31 @@ import androidx.core.text.parseAsHtml
 import coil3.request.CachePolicy
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.channelFlow
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.flow.FlowCollector
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.runInterruptible
-import okio.IOException
 import org.koitharu.kotatsu.core.model.isLocal
 import org.koitharu.kotatsu.core.nav.MangaIntent
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.CachingMangaRepository
 import org.koitharu.kotatsu.core.parser.MangaDataRepository
 import org.koitharu.kotatsu.core.parser.MangaRepository
-import org.koitharu.kotatsu.core.util.ext.peek
-import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.core.ui.model.MangaOverride
 import org.koitharu.kotatsu.core.util.ext.sanitize
 import org.koitharu.kotatsu.details.data.MangaDetails
 import org.koitharu.kotatsu.explore.domain.RecoverMangaUseCase
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
+import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.util.nullIfEmpty
 import org.koitharu.kotatsu.parsers.util.recoverNotNull
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
-import org.koitharu.kotatsu.tracker.domain.CheckNewChaptersUseCase
 import javax.inject.Inject
-import javax.inject.Provider
 
 class DetailsLoadUseCase @Inject constructor(
 	private val mangaDataRepository: MangaDataRepository,
@@ -40,84 +41,116 @@ class DetailsLoadUseCase @Inject constructor(
 	private val mangaRepositoryFactory: MangaRepository.Factory,
 	private val recoverUseCase: RecoverMangaUseCase,
 	private val imageGetter: Html.ImageGetter,
-	private val newChaptersUseCaseProvider: Provider<CheckNewChaptersUseCase>,
 	private val networkState: NetworkState,
 ) {
 
-	operator fun invoke(intent: MangaIntent, force: Boolean): Flow<MangaDetails> = channelFlow {
+	operator fun invoke(intent: MangaIntent, force: Boolean): Flow<MangaDetails> = flow {
 		val manga = requireNotNull(mangaDataRepository.resolveIntent(intent, withChapters = true)) {
 			"Cannot resolve intent $intent"
 		}
 		val override = mangaDataRepository.getOverride(manga.id)
-		send(
+		emit(
 			MangaDetails(
 				manga = manga,
 				localManga = null,
 				override = override,
-				description = null,
+				description = manga.description?.parseAsHtml(withImages = false),
 				isLoaded = false,
 			),
 		)
-		val local = if (!manga.isLocal) {
-			async {
-				localMangaRepository.findSavedManga(manga)
-			}
+		if (manga.isLocal) {
+			loadLocal(manga, override, force)
 		} else {
-			null
+			loadRemote(manga, override, force)
 		}
-		if (!force && networkState.isOfflineOrRestricted()) {
-			// try to avoid loading if has saved manga
-			val localManga = local?.await()
-			if (manga.isLocal || localManga != null) {
-				send(
-					MangaDetails(
-						manga = manga,
-						localManga = localManga,
-						override = override,
-						description = manga.description?.parseAsHtml(withImages = true)?.trim(),
-						isLoaded = true,
-					),
-				)
-				return@channelFlow
-			}
+	}.distinctUntilChanged()
+		.flowOn(Dispatchers.Default)
+
+	/**
+	 * Load local manga + try to load the linked remote one if network is not restricted
+	 * Suppress any network errors
+	 */
+	private suspend fun FlowCollector<MangaDetails>.loadLocal(manga: Manga, override: MangaOverride?, force: Boolean) {
+		val skipNetworkLoad = !force && networkState.isOfflineOrRestricted()
+		val localDetails = localMangaRepository.getDetails(manga)
+		emit(
+			MangaDetails(
+				manga = localDetails,
+				localManga = null,
+				override = override,
+				description = localDetails.description?.parseAsHtml(withImages = false),
+				isLoaded = skipNetworkLoad,
+			),
+		)
+		if (skipNetworkLoad) {
+			return
 		}
-		try {
-			val details = getDetails(manga, force)
-			launch { mangaDataRepository.updateChapters(details) }
-			launch { updateTracker(details) }
-			send(
+		val remoteManga = localMangaRepository.getRemoteManga(manga)
+		if (remoteManga == null) {
+			emit(
 				MangaDetails(
-					manga = details,
-					localManga = local?.peek(),
+					manga = localDetails,
+					localManga = null,
 					override = override,
-					description = details.description?.parseAsHtml(withImages = false)?.trim(),
-					isLoaded = false,
-				),
-			)
-			send(
-				MangaDetails(
-					manga = details,
-					localManga = local?.await(),
-					override = override,
-					description = details.description?.parseAsHtml(withImages = true)?.trim(),
+					description = localDetails.description?.parseAsHtml(withImages = true),
 					isLoaded = true,
 				),
 			)
-		} catch (e: IOException) {
-			local?.await()?.manga?.also { localManga ->
-				send(
-					MangaDetails(
-						manga = localManga,
-						localManga = null,
-						override = override,
-						description = localManga.description?.parseAsHtml(withImages = false)?.trim(),
-						isLoaded = true,
-					),
-				)
-			} ?: close(e)
+		} else {
+			val remoteDetails = getDetails(remoteManga, force).getOrNull()
+			emit(
+				MangaDetails(
+					manga = remoteDetails ?: remoteManga,
+					localManga = LocalManga(localDetails),
+					override = override,
+					description = (remoteDetails ?: localDetails).description?.parseAsHtml(withImages = true),
+					isLoaded = true,
+				),
+			)
+			if (remoteDetails != null) {
+				mangaDataRepository.updateChapters(remoteDetails)
+			}
 		}
 	}
 
+	/**
+	 * Load remote manga + saved one if available
+	 * Throw network errors after loading local manga only
+	 */
+	private suspend fun FlowCollector<MangaDetails>.loadRemote(
+		manga: Manga,
+		override: MangaOverride?,
+		force: Boolean
+	) = coroutineScope {
+		val remoteDeferred = async {
+			getDetails(manga, force)
+		}
+		val localManga = localMangaRepository.findSavedManga(manga, withDetails = true)
+		if (localManga != null) {
+			emit(
+				MangaDetails(
+					manga = manga,
+					localManga = localManga,
+					override = override,
+					description = localManga.manga.description?.parseAsHtml(withImages = true),
+					isLoaded = false,
+				),
+			)
+		}
+		val remoteDetails = remoteDeferred.await().getOrThrow()
+		emit(
+			MangaDetails(
+				manga = remoteDetails,
+				localManga = localManga,
+				override = override,
+				description = (remoteDetails.description
+					?: localManga?.manga?.description)?.parseAsHtml(withImages = true),
+				isLoaded = true,
+			),
+		)
+		mangaDataRepository.updateChapters(remoteDetails)
+	}
+
 	private suspend fun getDetails(seed: Manga, force: Boolean) = runCatchingCancellable {
 		val repository = mangaRepositoryFactory.create(seed.source)
 		if (repository is CachingMangaRepository) {
@@ -131,20 +164,18 @@ class DetailsLoadUseCase @Inject constructor(
 		} else {
 			null
 		}
-	}.getOrThrow()
-
-	private suspend fun String.parseAsHtml(withImages: Boolean): CharSequence? {
-		return if (withImages) {
-			runInterruptible(Dispatchers.IO) {
-				parseAsHtml(imageGetter = imageGetter)
-			}.filterSpans()
-		} else {
-			runInterruptible(Dispatchers.Default) {
-				parseAsHtml()
-			}.filterSpans().sanitize()
-		}.takeUnless { it.isBlank() }
 	}
 
+	private suspend fun String.parseAsHtml(withImages: Boolean): CharSequence? = if (withImages) {
+		runInterruptible(Dispatchers.IO) {
+			parseAsHtml(imageGetter = imageGetter)
+		}.filterSpans()
+	} else {
+		runInterruptible(Dispatchers.Default) {
+			parseAsHtml()
+		}.filterSpans().sanitize()
+	}.trim().nullIfEmpty()
+
 	private fun Spanned.filterSpans(): Spanned {
 		val spannable = SpannableString.valueOf(this)
 		val spans = spannable.getSpans<ForegroundColorSpan>()
@@ -153,10 +184,4 @@ class DetailsLoadUseCase @Inject constructor(
 		}
 		return spannable
 	}
-
-	private suspend fun updateTracker(details: Manga) = runCatchingCancellable {
-		newChaptersUseCaseProvider.get()(details)
-	}.onFailure { e ->
-		e.printStackTraceDebug()
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/ProgressUpdateUseCase.kt

@@ -34,12 +34,17 @@ class ProgressUpdateUseCase @Inject constructor(
 		}
 		val chapter = details.findChapterById(history.chapterId) ?: return PROGRESS_NONE
 		val chapters = details.getChapters(chapter.branch)
+		val chapterRepo = if (repo.source == chapter.source) {
+			repo
+		} else {
+			mangaRepositoryFactory.create(chapter.source)
+		}
 		val chaptersCount = chapters.size
 		if (chaptersCount == 0) {
 			return PROGRESS_NONE
 		}
 		val chapterIndex = chapters.indexOfFirst { x -> x.id == history.chapterId }
-		val pagesCount = repo.getPages(chapter).size
+		val pagesCount = chapterRepo.getPages(chapter).size
 		if (pagesCount == 0) {
 			return PROGRESS_NONE
 		}

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/ReadingTimeUseCase.kt

@@ -27,7 +27,7 @@ class ReadingTimeUseCase @Inject constructor(
 		// Impossible task, I guess. Good luck on this.
 		var averageTimeSec: Int = 20 /* pages */ * getSecondsPerPage(manga.id) * chapters.size
 		if (isOnHistoryBranch) {
-			averageTimeSec = (averageTimeSec * (1f - checkNotNull(history).percent)).roundToInt()
+			averageTimeSec = (averageTimeSec * (1f - history.percent)).roundToInt()
 		}
 		if (averageTimeSec < 60) {
 			return null

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/ChaptersMapper.kt

@@ -16,6 +16,7 @@ fun MangaDetails.mapChapters(
 	branch: String?,
 	bookmarks: List<Bookmark>,
 	isGrid: Boolean,
+	isDownloadedOnly: Boolean,
 ): List<ChapterListItem> {
 	val remoteChapters = chapters[branch].orEmpty()
 	val localChapters = local?.manga?.getChapters(branch).orEmpty()
@@ -35,19 +36,21 @@ fun MangaDetails.mapChapters(
 		null
 	}
 	var isUnread = currentChapterId !in ids
-	for (chapter in remoteChapters) {
-		val local = localMap?.remove(chapter.id)
-		if (chapter.id == currentChapterId) {
-			isUnread = true
+	if (!isDownloadedOnly || local?.manga?.chapters == null) {
+		for (chapter in remoteChapters) {
+			val local = localMap?.remove(chapter.id)
+			if (chapter.id == currentChapterId) {
+				isUnread = true
+			}
+			result += (local ?: chapter).toListItem(
+				isCurrent = chapter.id == currentChapterId,
+				isUnread = isUnread,
+				isNew = isUnread && result.size >= newFrom,
+				isDownloaded = local != null,
+				isBookmarked = chapter.id in bookmarked,
+				isGrid = isGrid,
+			)
 		}
-		result += (local ?: chapter).toListItem(
-			isCurrent = chapter.id == currentChapterId,
-			isUnread = isUnread,
-			isNew = isUnread && result.size >= newFrom,
-			isDownloaded = local != null,
-			isBookmarked = chapter.id in bookmarked,
-			isGrid = isGrid,
-		)
 	}
 	if (!localMap.isNullOrEmpty()) {
 		for (chapter in localMap.values) {

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt

@@ -2,7 +2,6 @@ package org.koitharu.kotatsu.details.ui
 
 import android.app.assist.AssistContent
 import android.content.Context
-import android.os.Build
 import android.os.Bundle
 import android.text.SpannedString
 import android.view.Gravity
@@ -11,7 +10,6 @@ import android.view.ViewGroup
 import android.view.ViewTreeObserver
 import android.widget.Toast
 import androidx.activity.viewModels
-import androidx.appcompat.widget.TooltipCompat
 import androidx.core.text.buildSpannedString
 import androidx.core.text.inSpans
 import androidx.core.text.method.LinkMovementMethodCompat
@@ -80,6 +78,7 @@ import org.koitharu.kotatsu.core.util.ext.mangaSourceExtra
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
 import org.koitharu.kotatsu.core.util.ext.parentView
+import org.koitharu.kotatsu.core.util.ext.setTooltipCompat
 import org.koitharu.kotatsu.core.util.ext.start
 import org.koitharu.kotatsu.core.util.ext.textAndVisible
 import org.koitharu.kotatsu.core.util.ext.toUriOrNull
@@ -209,9 +208,7 @@ class DetailsActivity :
 
 	override fun onProvideAssistContent(outContent: AssistContent) {
 		super.onProvideAssistContent(outContent)
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-			viewModel.getMangaOrNull()?.publicUrl?.toUriOrNull()?.let { outContent.webUri = it }
-		}
+		viewModel.getMangaOrNull()?.publicUrl?.toUriOrNull()?.let { outContent.webUri = it }
 	}
 
 	override fun isNsfwContent(): Flow<Boolean> = viewModel.manga.map { it?.contentRating == ContentRating.ADULT }
@@ -260,7 +257,7 @@ class DetailsActivity :
 			R.id.button_scrobbling_more -> {
 				router.showScrobblingSelectorSheet(
 					manga = viewModel.getMangaOrNull() ?: return,
-					scrobblerService = viewModel.scrobblingInfo.value.firstOrNull()?.scrobbler
+					scrobblerService = viewModel.scrobblingInfo.value.firstOrNull()?.scrobbler,
 				)
 			}
 
@@ -389,7 +386,7 @@ class DetailsActivity :
 				mangaGridItemAD(
 					sizeResolver = StaticItemSizeResolver(resources.getDimensionPixelSize(R.dimen.smaller_grid_width)),
 				) { item, view ->
-					router.openDetails(item)
+					router.openDetails(item.toMangaWithOverride())
 				},
 			).also { rv.adapter = it }
 		adapter.items = related
@@ -455,7 +452,7 @@ class DetailsActivity :
 				textViewSourceLabel.isVisible = false
 			} else {
 				textViewSource.textAndVisible = manga.source.getTitle(this@DetailsActivity)
-				TooltipCompat.setTooltipText(textViewSource, manga.source.getSummary(this@DetailsActivity))
+				textViewSource.setTooltipCompat(manga.source.getSummary(this@DetailsActivity))
 				textViewSourceLabel.isVisible = textViewSource.isVisible == true
 			}
 			val faviconPlaceholderFactory = FaviconDrawable.Factory(R.style.FaviconDrawable_Chip)

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsViewModel.kt

@@ -140,6 +140,7 @@ class DetailsViewModel @Inject constructor(
 		get() = scrobblers.any { it.isEnabled }
 
 	val scrobblingInfo: StateFlow<List<ScrobblingInfo>> = interactor.observeScrobblingInfo(mangaId)
+		.withErrorHandling()
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, emptyList())
 
 	val relatedManga: StateFlow<List<MangaListModel>> = manga.mapLatest {
@@ -182,7 +183,7 @@ class DetailsViewModel @Inject constructor(
 
 	init {
 		loadingJob = doLoad(force = false)
-		launchJob(Dispatchers.Default) {
+		launchJob(Dispatchers.Default + SkipErrors) {
 			val manga = mangaDetails.firstOrNull { !it?.chapters.isNullOrEmpty() } ?: return@launchJob
 			val h = history.firstOrNull()
 			if (h != null) {

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/ReadButtonDelegate.kt

@@ -106,7 +106,7 @@ class ReadButtonDelegate(
 	}
 
 	private fun openReader(isIncognitoMode: Boolean) {
-		val manga = viewModel.manga.value ?: return
+		val manga = viewModel.getMangaOrNull() ?: return
 		if (viewModel.historyInfo.value.isChapterMissing) {
 			Snackbar.make(buttonRead, R.string.chapter_is_missing, Snackbar.LENGTH_SHORT)
 				.show() // TODO

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/adapter/ChapterGridItemAD.kt

@@ -1,12 +1,12 @@
 package org.koitharu.kotatsu.details.ui.adapter
 
 import android.graphics.Typeface
-import androidx.appcompat.widget.TooltipCompat
 import androidx.core.view.isVisible
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.util.ext.getThemeColorStateList
+import org.koitharu.kotatsu.core.util.ext.setTooltipCompat
 import org.koitharu.kotatsu.databinding.ItemChapterGridBinding
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.list.ui.model.ListModel
@@ -23,7 +23,7 @@ fun chapterGridItemAD(
 	bind { payloads ->
 		if (payloads.isEmpty()) {
 			binding.textViewTitle.text = item.chapter.numberString() ?: "?"
-			TooltipCompat.setTooltipText(itemView, item.chapter.title)
+			itemView.setTooltipCompat(item.chapter.title)
 		}
 		binding.imageViewNew.isVisible = item.isNew
 		binding.imageViewCurrent.isVisible = item.isCurrent

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/ChapterPagesMenuProvider.kt

@@ -9,6 +9,7 @@ import androidx.core.view.MenuProvider
 import androidx.viewpager2.widget.ViewPager2
 import com.google.android.material.slider.LabelFormatter
 import com.google.android.material.slider.Slider
+import com.google.android.material.slider.TickVisibilityMode
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.sheet.BaseAdaptiveSheet
@@ -38,9 +39,13 @@ class ChapterPagesMenuProvider(
 					setOnActionExpandListener(this@ChapterPagesMenuProvider)
 					(actionView as? SearchView)?.setupChaptersSearchView()
 				}
-				menu.findItem(R.id.action_search)?.isVisible = viewModel.isChaptersEmpty.value == false
+				menu.findItem(R.id.action_search)?.isVisible = viewModel.emptyReason.value == null
 				menu.findItem(R.id.action_reversed)?.isChecked = viewModel.isChaptersReversed.value == true
 				menu.findItem(R.id.action_grid_view)?.isChecked = viewModel.isChaptersInGridView.value == true
+				menu.findItem(R.id.action_downloaded)?.let { menuItem ->
+					menuItem.isVisible = viewModel.mangaDetails.value?.local != null
+					menuItem.isChecked = viewModel.isDownloadedOnly.value == true
+				}
 			}
 
 			TAB_PAGES, TAB_BOOKMARKS -> {
@@ -64,6 +69,11 @@ class ChapterPagesMenuProvider(
 			true
 		}
 
+		R.id.action_downloaded -> {
+			viewModel.isDownloadedOnly.value = !menuItem.isChecked
+			true
+		}
+
 		else -> false
 	}
 
@@ -110,7 +120,7 @@ class ChapterPagesMenuProvider(
 		valueFrom = 50f
 		valueTo = 150f
 		stepSize = 5f
-		isTickVisible = false
+		tickVisibilityMode = TickVisibilityMode.TICK_VISIBILITY_HIDDEN
 		labelBehavior = LabelFormatter.LABEL_FLOATING
 		setLabelFormatter(IntPercentLabelFormatter(context))
 		setValueRounded(settings.gridSizePages.toFloat())

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/ChaptersPagesSheet.kt

@@ -81,6 +81,7 @@ class ChaptersPagesSheet : BaseAdaptiveSheet<SheetChaptersPagesBinding>(),
 		val menuInvalidator = MenuInvalidator(binding.toolbar)
 		viewModel.isChaptersReversed.observe(viewLifecycleOwner, menuInvalidator)
 		viewModel.isChaptersInGridView.observe(viewLifecycleOwner, menuInvalidator)
+		viewModel.isDownloadedOnly.observe(viewLifecycleOwner, menuInvalidator)
 
 		actionModeDelegate?.addListener(this, viewLifecycleOwner)
 		addSheetCallback(this, viewLifecycleOwner)

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/ChaptersPagesViewModel.kt

@@ -14,6 +14,7 @@ import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onStart
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.plus
@@ -43,6 +44,7 @@ import org.koitharu.kotatsu.list.domain.ListFilterOption
 import org.koitharu.kotatsu.local.domain.DeleteLocalMangaUseCase
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaState
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import org.koitharu.kotatsu.reader.ui.ReaderState
 import org.koitharu.kotatsu.reader.ui.ReaderViewModel
@@ -87,6 +89,8 @@ abstract class ChaptersPagesViewModel(
 		valueProducer = { isChaptersGridView },
 	)
 
+	val isDownloadedOnly = MutableStateFlow(false)
+
 	val newChaptersCount = mangaDetails.flatMapLatest { d ->
 		if (d?.isLocal == false) {
 			interactor.observeNewChapters(d.id)
@@ -95,9 +99,19 @@ abstract class ChaptersPagesViewModel(
 		}
 	}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, 0)
 
-	val isChaptersEmpty: StateFlow<Boolean> = mangaDetails.map {
-		it != null && it.isLoaded && it.allChapters.isEmpty()
-	}.stateIn(viewModelScope, SharingStarted.WhileSubscribed(), false)
+	val emptyReason: StateFlow<EmptyMangaReason?> = combine(
+		mangaDetails,
+		isLoading,
+		onError.onStart { emit(null) },
+	) { details, loading, error ->
+		when {
+			details == null || loading -> null
+			details.chapters.isNotEmpty() -> null
+			details.toManga().state == MangaState.RESTRICTED -> EmptyMangaReason.RESTRICTED
+			error != null -> EmptyMangaReason.LOADING_ERROR
+			else -> EmptyMangaReason.NO_CHAPTERS
+		}
+	}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.WhileSubscribed(), null)
 
 	val bookmarks = mangaDetails.flatMapLatest {
 		if (it != null) {
@@ -115,13 +129,15 @@ abstract class ChaptersPagesViewModel(
 			newChaptersCount,
 			bookmarks,
 			isChaptersInGridView,
-		) { manga, currentChapterId, branch, news, bookmarks, grid ->
+			isDownloadedOnly,
+		) { manga, currentChapterId, branch, news, bookmarks, grid, downloadedOnly ->
 			manga?.mapChapters(
-				currentChapterId,
-				news,
-				branch,
-				bookmarks,
-				grid,
+				currentChapterId = currentChapterId,
+				newCount = news,
+				branch = branch,
+				bookmarks = bookmarks,
+				isGrid = grid,
+				isDownloadedOnly = downloadedOnly,
 			).orEmpty()
 		},
 		isChaptersReversed,

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/EmptyMangaReason.kt

@@ -0,0 +1,13 @@
+package org.koitharu.kotatsu.details.ui.pager
+
+import androidx.annotation.StringRes
+import org.koitharu.kotatsu.R
+
+enum class EmptyMangaReason(
+	@StringRes val msgResId: Int,
+) {
+
+	NO_CHAPTERS(R.string.no_chapters_in_manga),
+	LOADING_ERROR(R.string.chapters_load_failed),
+	RESTRICTED(R.string.manga_restricted_description),
+}

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/chapters/ChaptersFragment.kt

@@ -30,6 +30,7 @@ import org.koitharu.kotatsu.core.util.RecyclerViewScrollCallback
 import org.koitharu.kotatsu.core.util.ext.findAppCompatDelegate
 import org.koitharu.kotatsu.core.util.ext.findParentCallback
 import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.setTextAndVisible
 import org.koitharu.kotatsu.databinding.FragmentChaptersBinding
 import org.koitharu.kotatsu.details.ui.adapter.ChaptersAdapter
 import org.koitharu.kotatsu.details.ui.adapter.ChaptersSelectionDecoration
@@ -96,8 +97,8 @@ class ChaptersFragment :
 			.flowOn(Dispatchers.Default)
 			.observe(viewLifecycleOwner, this::onChaptersChanged)
 		viewModel.quickFilter.observe(viewLifecycleOwner, this::onFilterChanged)
-		viewModel.isChaptersEmpty.observe(viewLifecycleOwner) {
-			binding.textViewHolder.isVisible = it
+		viewModel.emptyReason.observe(viewLifecycleOwner) {
+			binding.textViewHolder.setTextAndVisible(it?.msgResId ?: 0)
 		}
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/chapters/ChaptersSelectionCallback.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.details.ui.pager.chapters
 import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
+import android.widget.Toast
 import androidx.appcompat.view.ActionMode
 import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.snackbar.Snackbar
@@ -11,6 +12,7 @@ import org.koitharu.kotatsu.core.model.LocalMangaSource
 import org.koitharu.kotatsu.core.nav.AppRouter
 import org.koitharu.kotatsu.core.ui.list.BaseListSelectionCallback
 import org.koitharu.kotatsu.core.ui.list.ListSelectionController
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.core.util.ext.toCollection
 import org.koitharu.kotatsu.core.util.ext.toSet
 import org.koitharu.kotatsu.details.ui.pager.ChaptersPagesViewModel
@@ -78,11 +80,20 @@ class ChaptersSelectionCallback(
 					ids.size == manga.chapters?.size -> viewModel.deleteLocal()
 					else -> {
 						LocalChaptersRemoveService.start(recyclerView.context, manga, ids.toSet())
-						Snackbar.make(
-							recyclerView,
-							R.string.chapters_will_removed_background,
-							Snackbar.LENGTH_LONG,
-						).show()
+						try {
+							Snackbar.make(
+								recyclerView,
+								R.string.chapters_will_removed_background,
+								Snackbar.LENGTH_LONG,
+							).show()
+						} catch (e: IllegalArgumentException) {
+							e.printStackTraceDebug()
+							Toast.makeText(
+								recyclerView.context,
+								R.string.chapters_will_removed_background,
+								Toast.LENGTH_SHORT,
+							).show()
+						}
 					}
 				}
 				mode?.finish()

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/pages/MangaPageFetcher.kt

@@ -24,7 +24,8 @@ import org.koitharu.kotatsu.core.util.MimeTypes
 import org.koitharu.kotatsu.core.util.ext.fetch
 import org.koitharu.kotatsu.core.util.ext.isNetworkUri
 import org.koitharu.kotatsu.core.util.ext.toMimeTypeOrNull
-import org.koitharu.kotatsu.local.data.PagesCache
+import org.koitharu.kotatsu.local.data.LocalStorageCache
+import org.koitharu.kotatsu.local.data.PageCache
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.util.mimeType
 import org.koitharu.kotatsu.parsers.util.requireBody
@@ -34,7 +35,7 @@ import javax.inject.Inject
 
 class MangaPageFetcher(
 	private val okHttpClient: OkHttpClient,
-	private val pagesCache: PagesCache,
+	private val pagesCache: LocalStorageCache,
 	private val options: Options,
 	private val page: MangaPage,
 	private val mangaRepositoryFactory: MangaRepository.Factory,
@@ -53,7 +54,7 @@ class MangaPageFetcher(
 		val repo = mangaRepositoryFactory.create(page.source)
 		val pageUrl = repo.getPageUrl(page)
 		if (options.diskCachePolicy.readEnabled) {
-			pagesCache.get(pageUrl)?.let { file ->
+			pagesCache[pageUrl]?.let { file ->
 				return SourceFetchResult(
 					source = ImageSource(file.toOkioPath(), options.fileSystem),
 					mimeType = MimeTypes.getMimeTypeFromExtension(file.name)?.toString(),
@@ -78,7 +79,7 @@ class MangaPageFetcher(
 			}
 			val mimeType = response.mimeType?.toMimeTypeOrNull()
 			val file = response.requireBody().use {
-				pagesCache.put(pageUrl, it.source(), mimeType)
+				pagesCache.set(pageUrl, it.source(), mimeType)
 			}
 			SourceFetchResult(
 				source = ImageSource(file.toOkioPath(), FileSystem.SYSTEM),
@@ -107,7 +108,7 @@ class MangaPageFetcher(
 
 	class Factory @Inject constructor(
 		@MangaHttpClient private val okHttpClient: OkHttpClient,
-		private val pagesCache: PagesCache,
+		@PageCache private val pagesCache: LocalStorageCache,
 		private val mangaRepositoryFactory: MangaRepository.Factory,
 		private val imageProxyInterceptor: ImageProxyInterceptor,
 	) : Fetcher.Factory<MangaPage> {

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/pages/PagesFragment.kt

@@ -11,7 +11,6 @@ import androidx.appcompat.view.ActionMode
 import androidx.collection.ArraySet
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.isInvisible
-import androidx.core.view.isVisible
 import androidx.fragment.app.viewModels
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -37,9 +36,11 @@ import org.koitharu.kotatsu.core.util.ext.findAppCompatDelegate
 import org.koitharu.kotatsu.core.util.ext.findParentCallback
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.core.util.ext.setTextAndVisible
 import org.koitharu.kotatsu.core.util.ext.showOrHide
 import org.koitharu.kotatsu.databinding.FragmentPagesBinding
 import org.koitharu.kotatsu.details.ui.pager.ChaptersPagesViewModel
+import org.koitharu.kotatsu.details.ui.pager.EmptyMangaReason
 import org.koitharu.kotatsu.list.ui.GridSpanResolver
 import org.koitharu.kotatsu.list.ui.adapter.ListItemType
 import org.koitharu.kotatsu.list.ui.adapter.TypedListSpacingDecoration
@@ -125,11 +126,18 @@ class PagesFragment :
 				it.spanCount = checkNotNull(spanResolver).spanCount
 			}
 		}
-		parentViewModel.isChaptersEmpty.observe(viewLifecycleOwner, ::onNoChaptersChanged)
+		parentViewModel.emptyReason.observe(viewLifecycleOwner, ::onNoChaptersChanged)
 		viewModel.thumbnails.observe(viewLifecycleOwner, ::onThumbnailsChanged)
 		viewModel.onPageSaved.observeEvent(this, PagesSavedObserver(binding.recyclerView))
 		viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(binding.recyclerView, this))
-		viewModel.isLoading.observe(viewLifecycleOwner) { binding.progressBar.showOrHide(it) }
+		combine(
+			viewModel.isLoading,
+			viewModel.thumbnails,
+		) { loading, content ->
+			loading && content.isEmpty()
+		}.observe(viewLifecycleOwner) {
+			binding.progressBar.showOrHide(it)
+		}
 		viewModel.isLoadingUp.observe(viewLifecycleOwner) { binding.progressBarTop.showOrHide(it) }
 		viewModel.isLoadingDown.observe(viewLifecycleOwner) { binding.progressBarBottom.showOrHide(it) }
 	}
@@ -237,10 +245,10 @@ class PagesFragment :
 		spanResolver?.setGridSize(scale, requireViewBinding().recyclerView)
 	}
 
-	private fun onNoChaptersChanged(isNoChapters: Boolean) {
+	private fun onNoChaptersChanged(reason: EmptyMangaReason?) {
 		with(viewBinding ?: return) {
-			textViewHolder.isVisible = isNoChapters
-			recyclerView.isInvisible = isNoChapters
+			textViewHolder.setTextAndVisible(reason?.msgResId ?: 0)
+			recyclerView.isInvisible = reason != null
 		}
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/pages/PagesViewModel.kt

@@ -5,8 +5,9 @@ import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancelAndJoin
 import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.filterNotNull
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.observeAsStateFlow
@@ -47,16 +48,15 @@ class PagesViewModel @Inject constructor(
 	)
 
 	init {
-		loadingJob = launchLoadingJob(Dispatchers.Default) {
-			val firstState = state.firstNotNull()
-			doInit(firstState)
-			launchJob(Dispatchers.Default) {
-				state.collectLatest {
-					if (it != null) {
+		launchJob(Dispatchers.Default) {
+			state.filterNotNull()
+				.collect {
+					val prevJob = loadingJob
+					loadingJob = launchLoadingJob(Dispatchers.Default) {
+						prevJob?.cancelAndJoin()
 						doInit(it)
 					}
 				}
-			}
 		}
 	}
 
@@ -105,7 +105,14 @@ class PagesViewModel @Inject constructor(
 			chaptersLoader.peekChapter(it) != null
 		} ?: state.details.allChapters.firstOrNull()?.id ?: return
 		if (!chaptersLoader.hasPages(initialChapterId)) {
-			chaptersLoader.loadSingleChapter(initialChapterId)
+			var hasPages = chaptersLoader.loadSingleChapter(initialChapterId)
+			while (!hasPages) {
+				if (chaptersLoader.loadPrevNextChapter(state.details, initialChapterId, isNext = true)) {
+					hasPages = chaptersLoader.snapshot().isNotEmpty()
+				} else {
+					break
+				}
+			}
 		}
 		updateList(state.readerState)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/related/RelatedListViewModel.kt

@@ -7,6 +7,7 @@ import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.stateIn
@@ -25,6 +26,8 @@ import org.koitharu.kotatsu.list.ui.MangaListViewModel
 import org.koitharu.kotatsu.list.ui.model.EmptyState
 import org.koitharu.kotatsu.list.ui.model.LoadingState
 import org.koitharu.kotatsu.list.ui.model.toErrorState
+import org.koitharu.kotatsu.local.data.LocalStorageChanges
+import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
 import javax.inject.Inject
 
@@ -35,7 +38,8 @@ class RelatedListViewModel @Inject constructor(
 	settings: AppSettings,
 	private val mangaListMapper: MangaListMapper,
 	mangaDataRepository: MangaDataRepository,
-) : MangaListViewModel(settings, mangaDataRepository) {
+	@LocalStorageChanges localStorageChanges: SharedFlow<LocalManga?>,
+) : MangaListViewModel(settings, mangaDataRepository, localStorageChanges) {
 
 	private val seed = savedStateHandle.require<ParcelableManga>(AppRouter.KEY_MANGA).manga
 	private val repository = mangaRepositoryFactory.create(seed.source)

app/src/main/kotlin/org/koitharu/kotatsu/download/ui/worker/DownloadWorker.kt

@@ -6,6 +6,7 @@ import android.content.Context
 import android.content.pm.ServiceInfo
 import android.os.Build
 import androidx.core.content.ContextCompat
+import androidx.core.net.toUri
 import androidx.hilt.work.HiltWorker
 import androidx.work.BackoffPolicy
 import androidx.work.Constraints
@@ -64,16 +65,20 @@ import org.koitharu.kotatsu.core.util.ext.ensureSuccess
 import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
 import org.koitharu.kotatsu.core.util.ext.getWorkInputData
 import org.koitharu.kotatsu.core.util.ext.getWorkSpec
+import org.koitharu.kotatsu.core.util.ext.openSource
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.core.util.ext.toFileOrNull
 import org.koitharu.kotatsu.core.util.ext.toMimeType
+import org.koitharu.kotatsu.core.util.ext.toMimeTypeOrNull
 import org.koitharu.kotatsu.core.util.ext.withTicker
 import org.koitharu.kotatsu.core.util.ext.writeAllCancellable
 import org.koitharu.kotatsu.core.util.progress.RealtimeEtaEstimator
 import org.koitharu.kotatsu.download.domain.DownloadProgress
 import org.koitharu.kotatsu.download.domain.DownloadState
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
+import org.koitharu.kotatsu.local.data.LocalStorageCache
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
-import org.koitharu.kotatsu.local.data.PagesCache
+import org.koitharu.kotatsu.local.data.PageCache
 import org.koitharu.kotatsu.local.data.TempFileFilter
 import org.koitharu.kotatsu.local.data.input.LocalMangaParser
 import org.koitharu.kotatsu.local.data.output.LocalMangaOutput
@@ -99,7 +104,7 @@ class DownloadWorker @AssistedInject constructor(
 	@Assisted appContext: Context,
 	@Assisted params: WorkerParameters,
 	@MangaHttpClient private val okHttp: OkHttpClient,
-	private val cache: PagesCache,
+	@PageCache private val cache: LocalStorageCache,
 	private val localMangaRepository: LocalMangaRepository,
 	private val mangaLock: MangaLock,
 	private val mangaDataRepository: MangaDataRepository,
@@ -197,7 +202,7 @@ class DownloadWorker @AssistedInject constructor(
 						?: error("Cannot obtain remote manga instance")
 				}
 				val repo = mangaRepositoryFactory.create(manga.source)
-				val mangaDetails = if (manga.chapters.isNullOrEmpty()) repo.getDetails(manga) else manga
+				val mangaDetails = if (manga.chapters.isNullOrEmpty() || manga.description.isNullOrEmpty()) repo.getDetails(manga) else manga
 				output = LocalMangaOutput.getOrCreate(
 					root = destination,
 					manga = mangaDetails,
@@ -229,7 +234,7 @@ class DownloadWorker @AssistedInject constructor(
 								semaphore.withPermit {
 									runFailsafe {
 										val url = repo.getPageUrl(page)
-										val file = cache.get(url)
+										val file = cache[url]
 											?: downloadFile(url, destination, repo.source)
 										output.addPage(
 											chapter = chapter,
@@ -371,6 +376,25 @@ class DownloadWorker @AssistedInject constructor(
 		destination: File,
 		source: MangaSource,
 	): File {
+		if (url.startsWith("content:", ignoreCase = true) || url.startsWith("file:", ignoreCase = true)) {
+			val uri = url.toUri()
+			val cr = applicationContext.contentResolver
+			val ext = uri.toFileOrNull()?.let {
+				MimeTypes.getNormalizedExtension(it.name)
+			} ?: cr.getType(uri)?.toMimeTypeOrNull()?.let { MimeTypes.getExtension(it) }
+			val file = destination.createTempFile(ext)
+			try {
+				cr.openSource(uri).use { input ->
+					file.sink(append = false).buffer().use {
+						it.writeAllCancellable(input)
+					}
+				}
+			} catch (e: Exception) {
+				file.delete()
+				throw e
+			}
+			return file
+		}
 		val request = PageLoader.createPageRequest(url, source)
 		slowdownDispatcher.delay(source)
 		return imageProxyInterceptor.interceptPageRequest(request, okHttp)
@@ -379,22 +403,14 @@ class DownloadWorker @AssistedInject constructor(
 				var file: File? = null
 				try {
 					response.requireBody().use { body ->
-						file = File(
-							destination,
-							buildString {
-								append(UUID.randomUUID().toString())
-								MimeTypes.getExtension(body.contentType()?.toMimeType())?.let { ext ->
-									append('.')
-									append(ext)
-								}
-								append(".tmp")
-							},
+						file = destination.createTempFile(
+							ext = MimeTypes.getExtension(body.contentType()?.toMimeType())
 						)
 						file.sink(append = false).buffer().use {
 							it.writeAllCancellable(body.source())
 						}
 					}
-				} catch (e: CancellationException) {
+				} catch (e: Exception) {
 					file?.delete()
 					throw e
 				}
@@ -402,6 +418,18 @@ class DownloadWorker @AssistedInject constructor(
 			}
 	}
 
+	private fun File.createTempFile(ext: String?) = File(
+		this,
+		buildString {
+			append(UUID.randomUUID().toString())
+			if (!ext.isNullOrEmpty()) {
+				append('.')
+				append(ext)
+			}
+			append(".tmp")
+		},
+	)
+
 	private suspend fun publishState(state: DownloadState) {
 		val previousState = currentState
 		lastPublishedState = state
@@ -537,7 +565,7 @@ class DownloadWorker @AssistedInject constructor(
 				return
 			}
 			val requests = tasks.map { (manga, task) ->
-				mangaDataRepository.storeManga(manga)
+				mangaDataRepository.storeManga(manga, replaceExisting = true)
 				OneTimeWorkRequestBuilder<DownloadWorker>()
 					.setConstraints(createConstraints(task.allowMeteredNetwork))
 					.addTag(TAG)

app/src/main/kotlin/org/koitharu/kotatsu/explore/data/MangaSourcesRepository.kt

@@ -53,11 +53,7 @@ class MangaSourcesRepository @Inject constructor(
 		get() = db.getSourcesDao()
 
 	val allMangaSources: Set<MangaParserSource> = Collections.unmodifiableSet(
-		EnumSet.allOf(MangaParserSource::class.java).apply {
-			if (!BuildConfig.DEBUG) {
-				remove(MangaParserSource.DUMMY)
-			}
-		},
+		EnumSet.allOf(MangaParserSource::class.java)
 	)
 
 	suspend fun getEnabledSources(): List<MangaSource> {

app/src/main/kotlin/org/koitharu/kotatsu/explore/domain/ExploreRepository.kt

@@ -35,7 +35,7 @@ class ExploreRepository @Inject constructor(
 			val details = runCatchingCancellable {
 				mangaRepositoryFactory.create(manga.source).getDetails(manga)
 			}.getOrNull() ?: continue
-			if ((settings.isSuggestionsExcludeNsfw && details.isNsfw) || details in tagsBlacklist) {
+			if ((settings.isSuggestionsExcludeNsfw && details.isNsfw()) || details in tagsBlacklist) {
 				continue
 			}
 			return details
@@ -55,7 +55,7 @@ class ExploreRepository @Inject constructor(
 			val details = runCatchingCancellable {
 				mangaRepositoryFactory.create(manga.source).getDetails(manga)
 			}.getOrNull() ?: continue
-			if ((skipNsfw && details.isNsfw) || details in tagsBlacklist) {
+			if ((skipNsfw && details.isNsfw()) || details in tagsBlacklist) {
 				continue
 			}
 			return details
@@ -80,7 +80,7 @@ class ExploreRepository @Inject constructor(
 			filter = MangaListFilter(tags = setOfNotNull(tag)),
 		).asArrayList()
 		if (settings.isSuggestionsExcludeNsfw) {
-			list.removeAll { it.isNsfw }
+			list.removeAll { it.isNsfw() }
 		}
 		if (blacklist.isNotEmpty()) {
 			list.removeAll { manga -> manga in blacklist }

app/src/main/kotlin/org/koitharu/kotatsu/explore/domain/RecoverMangaUseCase.kt

@@ -24,7 +24,7 @@ class RecoverMangaUseCase @Inject constructor(
 			repository.getDetails(it)
 		} ?: return@runCatchingCancellable null
 		val merged = merge(manga, newManga)
-		mangaDataRepository.storeManga(merged)
+		mangaDataRepository.storeManga(merged, replaceExisting = true)
 		merged
 	}.onFailure {
 		it.printStackTraceDebug()

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreViewModel.kt

@@ -198,11 +198,9 @@ class ExploreViewModel @Inject constructor(
 
 	private fun List<Manga>.toRecommendationList() = map { manga ->
 		MangaCompactListModel(
-			id = manga.id,
-			title = manga.title,
-			subtitle = manga.tags.joinToString { it.title },
-			coverUrl = manga.coverUrl,
 			manga = manga,
+			override = null,
+			subtitle = manga.tags.joinToString { it.title },
 			counter = 0,
 		)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/adapter/ExploreAdapterDelegates.kt

@@ -1,7 +1,6 @@
 package org.koitharu.kotatsu.explore.ui.adapter
 
 import android.view.View
-import androidx.appcompat.widget.TooltipCompat
 import androidx.core.content.ContextCompat
 import androidx.core.text.bold
 import androidx.core.text.buildSpannedString
@@ -15,6 +14,7 @@ import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.util.ext.drawableStart
 import org.koitharu.kotatsu.core.util.ext.recyclerView
 import org.koitharu.kotatsu.core.util.ext.setProgressIcon
+import org.koitharu.kotatsu.core.util.ext.setTooltipCompat
 import org.koitharu.kotatsu.core.util.ext.textAndVisible
 import org.koitharu.kotatsu.databinding.ItemExploreButtonsBinding
 import org.koitharu.kotatsu.databinding.ItemExploreSourceGridBinding
@@ -126,8 +126,7 @@ fun exploreSourceGridItemAD(
 
 	bind {
 		val title = item.source.getTitle(context)
-		TooltipCompat.setTooltipText(
-			itemView,
+		itemView.setTooltipCompat(
 			buildSpannedString {
 				bold {
 					append(title)

app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/adapter/CategoryAD.kt

@@ -11,6 +11,7 @@ import androidx.core.view.isVisible
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.util.ext.getQuantityStringSafe
+import org.koitharu.kotatsu.core.util.ext.setTooltipCompat
 import org.koitharu.kotatsu.databinding.ItemCategoriesAllBinding
 import org.koitharu.kotatsu.databinding.ItemCategoryBinding
 import org.koitharu.kotatsu.favourites.ui.categories.FavouriteCategoriesListListener
@@ -91,6 +92,13 @@ fun allCategoriesAD(
 				R.drawable.ic_eye_off
 			},
 		)
+		binding.imageViewVisible.setTooltipCompat(
+			if (item.isVisible) {
+				R.string.hide
+			} else {
+				R.string.show
+			},
+		)
 		binding.coversView.setCoversAsync(item.covers)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/list/FavouritesListViewModel.kt

@@ -40,6 +40,9 @@ import org.koitharu.kotatsu.list.ui.model.toErrorState
 import org.koitharu.kotatsu.parsers.model.Manga
 import java.util.concurrent.atomic.AtomicBoolean
 import javax.inject.Inject
+import org.koitharu.kotatsu.local.data.LocalStorageChanges
+import org.koitharu.kotatsu.local.domain.model.LocalManga
+import kotlinx.coroutines.flow.SharedFlow
 
 private const val PAGE_SIZE = 16
 
@@ -52,7 +55,8 @@ class FavouritesListViewModel @Inject constructor(
 	quickFilterFactory: FavoritesListQuickFilter.Factory,
 	settings: AppSettings,
 	mangaDataRepository: MangaDataRepository,
-) : MangaListViewModel(settings, mangaDataRepository), QuickFilterListener {
+	@LocalStorageChanges localStorageChanges: SharedFlow<LocalManga?>,
+) : MangaListViewModel(settings, mangaDataRepository, localStorageChanges), QuickFilterListener {
 
 	val categoryId: Long = savedStateHandle[AppRouter.KEY_ID] ?: NO_ID
 	private val quickFilter = quickFilterFactory.create(categoryId)

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterCoordinator.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.filter.ui
 
+import androidx.fragment.app.Fragment
 import androidx.lifecycle.SavedStateHandle
 import dagger.hilt.android.ViewModelLifecycle
 import dagger.hilt.android.scopes.ViewModelScoped
@@ -489,9 +490,27 @@ class FilterCoordinator @Inject constructor(
 		val filterCoordinator: FilterCoordinator
 	}
 
-	private companion object {
+	companion object {
 
-		const val TAGS_LIMIT = 12
-		val MAX_YEAR = Calendar.getInstance()[Calendar.YEAR] + 1
-	}
+		private const val TAGS_LIMIT = 12
+		private val MAX_YEAR = Calendar.getInstance()[Calendar.YEAR] + 1
+
+		fun find(fragment: Fragment): FilterCoordinator? {
+			(fragment.activity as? Owner)?.let {
+				return it.filterCoordinator
+			}
+			var f = fragment
+			while (true) {
+				(f as? Owner)?.let {
+					return it.filterCoordinator
+				}
+				f = f.parentFragment ?: break
+			}
+			return null
+		}
+
+		fun require(fragment: Fragment): FilterCoordinator {
+			return find(fragment) ?: throw IllegalStateException("FilterCoordinator cannot be found")
+		}
+ 	}
 }