Revert "Update sources catalog ui"

This reverts commit 597ad01e8f.

.github/ISSUE_TEMPLATE/config.yml

@@ -2,4 +2,4 @@ blank_issues_enabled: false
 contact_links:
     - name: ⚠️ Source issue
       url: https://github.com/KotatsuApp/kotatsu-parsers/issues/new
-      about: If you have troubles with a manga parser or want to propose new manga source, please open an issue in the kotatsu-parsers repository instead
+      about: If you have a problem with a specific **manga source** or want to propose a new one, please open an issue in the kotatsu-parsers repository instead

.github/ISSUE_TEMPLATE/report_bug.yml

@@ -60,7 +60,7 @@ body:
       attributes:
           label: Acknowledgements
           options:
-              - label: I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
+              - label: This is not a duplicate of an existing issue. Please look through the list of [open issues](https://github.com/KotatsuApp/Kotatsu/issues) before creating a new one.
                 required: true
-              - label: If this is an issue with a parser, I should be opening an issue in the [parsers repository](https://github.com/KotatsuApp/kotatsu-parsers/issues/new/choose).
+              - label: This is not an issue with a specific manga source. Otherwise, you have to open an issue in the [parsers repository](https://github.com/KotatsuApp/kotatsu-parsers/issues/new/choose).
                 required: true

.github/ISSUE_TEMPLATE/request_feature.yml

@@ -20,5 +20,5 @@ body:
           label: Acknowledgements
           description: Read this carefully, we will close and ignore your issue if you skimmed through this.
           options:
-              - label: I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
-                required: true
+              - label: This is not a duplicate of an existing issue. Please look through the list of [open issues](https://github.com/KotatsuApp/Kotatsu/issues) before creating a new one.
+                required: true

.gitignore

@@ -24,3 +24,4 @@
 /captures
 .externalNativeBuild
 .cxx
+/.idea/deviceManager.xml

.idea/gradle.xml

@@ -4,9 +4,8 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
-        <option name="testRunner" value="GRADLE" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="jbr-17" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

LICENSE

@@ -619,56 +619,3 @@ Program, unless a warranty or assumption of liability accompanies a
 copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.

app/build.gradle

@@ -16,8 +16,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdk = 21
 		targetSdk = 34
-		versionCode = 622
-		versionName = '6.7'
+		versionCode = 645
+		versionName = '7.1.2'
 		generatedDensities = []
 		testInstrumentationRunner 'org.koitharu.kotatsu.HiltTestRunner'
 		ksp {
@@ -82,30 +82,32 @@ afterEvaluate {
 }
 dependencies {
 	//noinspection GradleDependency
-	implementation('com.github.KotatsuApp:kotatsu-parsers:014ea5ef49') {
+	implementation('com.github.KotatsuApp:kotatsu-parsers:26be293f24') {
 		exclude group: 'org.json', module: 'json'
 	}
 
 	coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.4'
-	implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.9.22'
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3'
+	implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.9.24'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.8.1'
 
 	implementation 'androidx.appcompat:appcompat:1.6.1'
-	implementation 'androidx.core:core-ktx:1.12.0'
-	implementation 'androidx.activity:activity-ktx:1.8.2'
-	implementation 'androidx.fragment:fragment-ktx:1.6.2'
-	implementation 'androidx.collection:collection:1.4.0'
-	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0'
-	implementation 'androidx.lifecycle:lifecycle-service:2.7.0'
-	implementation 'androidx.lifecycle:lifecycle-process:2.7.0'
+	implementation 'androidx.core:core-ktx:1.13.1'
+	implementation 'androidx.activity:activity-ktx:1.9.0'
+	implementation 'androidx.fragment:fragment-ktx:1.7.1'
+	implementation 'androidx.transition:transition-ktx:1.5.0'
+	implementation 'androidx.collection:collection-ktx:1.4.0'
+	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.8.0'
+	implementation 'androidx.lifecycle:lifecycle-service:2.8.0'
+	implementation 'androidx.lifecycle:lifecycle-process:2.8.0'
 	implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
 	implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
 	implementation 'androidx.recyclerview:recyclerview:1.3.2'
-	implementation 'androidx.viewpager2:viewpager2:1.1.0-beta02'
+	implementation 'androidx.viewpager2:viewpager2:1.1.0'
 	implementation 'androidx.preference:preference-ktx:1.2.1'
 	implementation 'androidx.biometric:biometric-ktx:1.2.0-alpha05'
-	implementation 'com.google.android.material:material:1.12.0-alpha03'
-	implementation 'androidx.lifecycle:lifecycle-common-java8:2.7.0'
+	implementation 'com.google.android.material:material:1.12.0'
+	implementation 'androidx.lifecycle:lifecycle-common-java8:2.8.0'
+	implementation 'androidx.webkit:webkit:1.11.0'
 
 	implementation 'androidx.work:work-runtime:2.9.0'
 	//noinspection GradleDependency
@@ -120,19 +122,20 @@ dependencies {
 	ksp 'androidx.room:room-compiler:2.6.1'
 
 	implementation 'com.squareup.okhttp3:okhttp:4.12.0'
+	implementation 'com.squareup.okhttp3:okhttp-tls:4.12.0'
 	implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:4.12.0'
-	implementation 'com.squareup.okio:okio:3.8.0'
+	implementation 'com.squareup.okio:okio:3.9.0'
 
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl:4.3.2'
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl-viewbinding:4.3.2'
 
-	implementation 'com.google.dagger:hilt-android:2.50'
-	kapt 'com.google.dagger:hilt-compiler:2.50'
-	implementation 'androidx.hilt:hilt-work:1.1.0'
-	kapt 'androidx.hilt:hilt-compiler:1.1.0'
+	implementation 'com.google.dagger:hilt-android:2.51.1'
+	kapt 'com.google.dagger:hilt-compiler:2.51.1'
+	implementation 'androidx.hilt:hilt-work:1.2.0'
+	kapt 'androidx.hilt:hilt-compiler:1.2.0'
 
-	implementation 'io.coil-kt:coil-base:2.5.0'
-	implementation 'io.coil-kt:coil-svg:2.5.0'
+	implementation 'io.coil-kt:coil-base:2.6.0'
+	implementation 'io.coil-kt:coil-svg:2.6.0'
 	implementation 'com.github.KotatsuApp:subsampling-scale-image-view:02e6d6cfe9'
 	implementation 'com.github.solkin:disk-lru-cache:1.4'
 	implementation 'io.noties.markwon:core:4.6.2'
@@ -144,22 +147,23 @@ dependencies {
 
 	implementation 'org.conscrypt:conscrypt-android:2.5.2'
 
-	debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.13'
+	debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.14'
+	debugImplementation 'com.github.Koitharu:WorkInspector:5778dd1747'
 
 	testImplementation 'junit:junit:4.13.2'
-	testImplementation 'org.json:json:20240205'
-	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
+	testImplementation 'org.json:json:20240303'
+	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.8.1'
 
 	androidTestImplementation 'androidx.test:runner:1.5.2'
 	androidTestImplementation 'androidx.test:rules:1.5.0'
 	androidTestImplementation 'androidx.test:core-ktx:1.5.0'
 	androidTestImplementation 'androidx.test.ext:junit-ktx:1.1.5'
 
-	androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
+	androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.8.1'
 
 	androidTestImplementation 'androidx.room:room-testing:2.6.1'
 	androidTestImplementation 'com.squareup.moshi:moshi-kotlin:1.15.1'
 
-	androidTestImplementation 'com.google.dagger:hilt-android-testing:2.50'
-	kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.50'
+	androidTestImplementation 'com.google.dagger:hilt-android-testing:2.51.1'
+	kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.51.1'
 }

app/src/androidTest/kotlin/org/koitharu/kotatsu/core/os/AppShortcutManagerTest.kt

@@ -57,6 +57,7 @@ class AppShortcutManagerTest {
 			page = 4,
 			scroll = 2,
 			percent = 0.3f,
+			force = false,
 		)
 		awaitUpdate()
 

app/src/androidTest/kotlin/org/koitharu/kotatsu/settings/backup/AppBackupAgentTest.kt

@@ -7,7 +7,9 @@ import dagger.hilt.android.testing.HiltAndroidRule
 import dagger.hilt.android.testing.HiltAndroidTest
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.test.runTest
-import org.junit.Assert.*
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
 import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
@@ -61,6 +63,7 @@ class AppBackupAgentTest {
 			page = 3,
 			scroll = 40,
 			percent = 0.2f,
+			force = false,
 		)
 		val history = checkNotNull(historyRepository.getOne(SampleData.manga))
 

app/src/androidTest/kotlin/org/koitharu/kotatsu/tracker/domain/TrackerTest.kt

@@ -174,12 +174,12 @@ class TrackerTest {
 		assertEquals(3, repository.getNewChaptersCount(mangaFirst.id))
 
 		var chapter = requireNotNull(mangaFull.chapters).run { get(lastIndex - 1) }
-		repository.syncWithHistory(mangaFull, chapter.id)
+		tracker.syncWithHistory(mangaFull, chapter.id)
 
 		assertEquals(1, repository.getNewChaptersCount(mangaFirst.id))
 
 		chapter = requireNotNull(mangaFull.chapters).run { get(lastIndex) }
-		repository.syncWithHistory(mangaFull, chapter.id)
+		tracker.syncWithHistory(mangaFull, chapter.id)
 
 		assertEquals(0, repository.getNewChaptersCount(mangaFirst.id))
 

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

@@ -11,7 +11,7 @@ import org.koitharu.kotatsu.reader.domain.PageLoader
 
 class KotatsuApp : BaseApp() {
 
-	override fun attachBaseContext(base: Context?) {
+	override fun attachBaseContext(base: Context) {
 		super.attachBaseContext(base)
 		enableStrictMode()
 	}

app/src/debug/kotlin/org/koitharu/kotatsu/core/util/ext/Debug.kt

@@ -0,0 +1,9 @@
+package org.koitharu.kotatsu.core.util.ext
+
+import android.os.Looper
+
+fun Throwable.printStackTraceDebug() = printStackTrace()
+
+fun assertNotInMainThread() = check(Looper.myLooper() != Looper.getMainLooper()) {
+	"Calling this from the main thread is prohibited"
+}

app/src/debug/kotlin/org/koitharu/kotatsu/core/util/ext/DebugExt.kt

@@ -1,3 +0,0 @@
-package org.koitharu.kotatsu.core.util.ext
-
-fun Throwable.printStackTraceDebug() = printStackTrace()

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

@@ -0,0 +1,33 @@
+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 leakcanary.LeakCanary
+import org.koitharu.kotatsu.R
+import org.koitharu.workinspector.WorkInspector
+
+class SettingsMenuProvider(
+	private val context: Context,
+) : MenuProvider {
+
+	override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
+		menuInflater.inflate(R.menu.opt_settings, menu)
+	}
+
+	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
+		}
+
+		else -> false
+	}
+}

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

@@ -8,4 +8,9 @@
 		android:title="@string/leak_canary_display_activity_label"
 		app:showAsAction="never" />
 
-</menu>
+	<item
+		android:id="@id/action_works"
+		android:title="@string/wi_lib_name"
+		app:showAsAction="never" />
+
+</menu>

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

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:tools="http://schemas.android.com/tools">
 	<bool name="leak_canary_add_launcher_icon" tools:node="replace">false</bool>
+	<bool name="wi_launcher_icon_enabled" tools:node="replace">false</bool>
 </resources>

app/src/main/AndroidManifest.xml

@@ -100,6 +100,13 @@
 			<intent-filter>
 				<action android:name="${applicationId}.action.READ_MANGA" />
 			</intent-filter>
+			<intent-filter>
+				<action android:name="com.samsung.android.support.REMOTE_ACTION" />
+			</intent-filter>
+
+			<meta-data
+				android:name="com.samsung.android.support.REMOTE_ACTION"
+				android:resource="@xml/remote_action" />
 		</activity>
 		<activity
 			android:name="org.koitharu.kotatsu.search.ui.SearchActivity"
@@ -122,7 +129,7 @@
 			android:name="org.koitharu.kotatsu.favourites.ui.FavouritesActivity"
 			android:label="@string/favourites" />
 		<activity
-			android:name="org.koitharu.kotatsu.bookmarks.ui.BookmarksActivity"
+			android:name="org.koitharu.kotatsu.bookmarks.ui.AllBookmarksActivity"
 			android:label="@string/bookmarks" />
 		<activity
 			android:name="org.koitharu.kotatsu.suggestions.ui.SuggestionsActivity"
@@ -239,6 +246,18 @@
 				<data android:scheme="kotatsu+kitsu" />
 			</intent-filter>
 		</activity>
+		<activity
+			android:name="org.koitharu.kotatsu.stats.ui.StatsActivity"
+			android:label="@string/reading_stats" />
+		<activity
+			android:name="org.koitharu.kotatsu.alternatives.ui.AlternativesActivity"
+			android:label="@string/alternatives" />
+		<activity
+			android:name="org.koitharu.kotatsu.settings.about.AppUpdateActivity"
+			android:label="@string/app_update_available" />
+		<activity
+			android:name="org.koitharu.kotatsu.tracker.ui.debug.TrackerDebugActivity"
+			android:label="@string/tracker_debug_info" />
 
 		<service
 			android:name="androidx.work.impl.foreground.SystemForegroundService"
@@ -247,6 +266,9 @@
 		<service
 			android:name="org.koitharu.kotatsu.local.ui.LocalChaptersRemoveService"
 			android:foregroundServiceType="dataSync" />
+		<service
+			android:name="org.koitharu.kotatsu.local.ui.ImportService"
+			android:foregroundServiceType="dataSync" />
 		<service
 			android:name="org.koitharu.kotatsu.widget.shelf.ShelfWidgetService"
 			android:permission="android.permission.BIND_REMOTEVIEWS" />
@@ -348,13 +370,6 @@
 				android:name="android.appwidget.provider"
 				android:resource="@xml/widget_recent" />
 		</receiver>
-		<receiver
-			android:name="org.koitharu.kotatsu.settings.about.UpdateDownloadReceiver"
-			android:exported="true">
-			<intent-filter>
-				<action android:name="android.intent.action.DOWNLOAD_COMPLETE" />
-			</intent-filter>
-		</receiver>
 		<receiver
 			android:name="org.koitharu.kotatsu.core.ErrorReporterReceiver"
 			android:exported="false">

app/src/main/assets/isrgrootx1.pem

@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----

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

@@ -0,0 +1,85 @@
+package org.koitharu.kotatsu.alternatives.domain
+
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.channelFlow
+import kotlinx.coroutines.flow.emptyFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.sync.Semaphore
+import kotlinx.coroutines.sync.withPermit
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.util.ext.almostEquals
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import javax.inject.Inject
+
+private const val MAX_PARALLELISM = 4
+private const val MATCH_THRESHOLD = 0.2f
+
+class AlternativesUseCase @Inject constructor(
+	private val sourcesRepository: MangaSourcesRepository,
+	private val mangaRepositoryFactory: MangaRepository.Factory,
+) {
+
+	suspend operator fun invoke(manga: Manga): Flow<Manga> {
+		val sources = getSources(manga.source)
+		if (sources.isEmpty()) {
+			return emptyFlow()
+		}
+		val semaphore = Semaphore(MAX_PARALLELISM)
+		return channelFlow {
+			for (source in sources) {
+				val repository = mangaRepositoryFactory.create(source)
+				if (!repository.isSearchSupported) {
+					continue
+				}
+				launch {
+					val list = runCatchingCancellable {
+						semaphore.withPermit {
+							repository.getList(offset = 0, filter = MangaListFilter.Search(manga.title))
+						}
+					}.getOrDefault(emptyList())
+					for (item in list) {
+						if (item.matches(manga)) {
+							send(item)
+						}
+					}
+				}
+			}
+		}.map {
+			runCatchingCancellable {
+				mangaRepositoryFactory.create(it.source).getDetails(it)
+			}.getOrDefault(it)
+		}
+	}
+
+	private suspend fun getSources(ref: MangaSource): List<MangaSource> {
+		val result = ArrayList<MangaSource>(MangaSource.entries.size - 2)
+		result.addAll(sourcesRepository.getEnabledSources())
+		result.sortByDescending { it.priority(ref) }
+		result.addAll(sourcesRepository.getDisabledSources().sortedByDescending { it.priority(ref) })
+		return result
+	}
+
+	private fun Manga.matches(ref: Manga): Boolean {
+		return matchesTitles(title, ref.title) ||
+			matchesTitles(title, ref.altTitle) ||
+			matchesTitles(altTitle, ref.title) ||
+			matchesTitles(altTitle, ref.altTitle)
+
+	}
+
+	private fun matchesTitles(a: String?, b: String?): Boolean {
+		return !a.isNullOrEmpty() && !b.isNullOrEmpty() && a.almostEquals(b, MATCH_THRESHOLD)
+	}
+
+	private fun MangaSource.priority(ref: MangaSource): Int {
+		var res = 0
+		if (locale == ref.locale) res += 2
+		if (contentType == ref.contentType) res++
+		return res
+	}
+}

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

@@ -0,0 +1,146 @@
+package org.koitharu.kotatsu.alternatives.domain
+
+import androidx.room.withTransaction
+import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.core.model.getPreferredBranch
+import org.koitharu.kotatsu.core.parser.MangaDataRepository
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.details.domain.ProgressUpdateUseCase
+import org.koitharu.kotatsu.history.data.HistoryEntity
+import org.koitharu.kotatsu.history.data.PROGRESS_NONE
+import org.koitharu.kotatsu.history.data.toMangaHistory
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import org.koitharu.kotatsu.tracker.data.TrackEntity
+import javax.inject.Inject
+
+class MigrateUseCase @Inject constructor(
+	private val mangaRepositoryFactory: MangaRepository.Factory,
+	private val mangaDataRepository: MangaDataRepository,
+	private val database: MangaDatabase,
+	private val progressUpdateUseCase: ProgressUpdateUseCase,
+) {
+
+	suspend operator fun invoke(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)
+		database.withTransaction {
+			// replace favorites
+			val favoritesDao = database.getFavouritesDao()
+			val oldFavourites = favoritesDao.findAllRaw(oldDetails.id)
+			if (oldFavourites.isNotEmpty()) {
+				favoritesDao.delete(oldManga.id)
+				for (f in oldFavourites) {
+					val e = f.copy(
+						mangaId = newManga.id,
+					)
+					favoritesDao.upsert(e)
+				}
+			}
+			// replace history
+			val historyDao = database.getHistoryDao()
+			val oldHistory = historyDao.find(oldDetails.id)
+			if (oldHistory != null) {
+				val newHistory = makeNewHistory(oldDetails, newDetails, oldHistory)
+				historyDao.delete(oldDetails.id)
+				historyDao.upsert(newHistory)
+			}
+			// track
+			val tracksDao = database.getTracksDao()
+			val oldTrack = tracksDao.find(oldDetails.id)
+			if (oldTrack != null) {
+				val lastChapter = newDetails.chapters?.lastOrNull()
+				val newTrack = TrackEntity(
+					mangaId = newDetails.id,
+					lastChapterId = lastChapter?.id ?: 0L,
+					newChapters = 0,
+					lastCheckTime = System.currentTimeMillis(),
+					lastChapterDate = lastChapter?.uploadDate ?: 0L,
+					lastResult = TrackEntity.RESULT_EXTERNAL_MODIFICATION,
+				)
+				tracksDao.delete(oldDetails.id)
+				tracksDao.upsert(newTrack)
+			}
+		}
+		progressUpdateUseCase(newManga)
+	}
+
+	private fun makeNewHistory(
+		oldManga: Manga,
+		newManga: Manga,
+		history: HistoryEntity,
+	): HistoryEntity {
+		if (oldManga.chapters.isNullOrEmpty()) { // probably broken manga/source
+			val branch = newManga.getPreferredBranch(null)
+			val chapters = checkNotNull(newManga.getChapters(branch))
+			val currentChapter = if (history.percent in 0f..1f) {
+				chapters[(chapters.lastIndex * history.percent).toInt()]
+			} else {
+				chapters.first()
+			}
+			return HistoryEntity(
+				mangaId = newManga.id,
+				createdAt = history.createdAt,
+				updatedAt = System.currentTimeMillis(),
+				chapterId = currentChapter.id,
+				page = history.page,
+				scroll = history.scroll,
+				percent = history.percent,
+				deletedAt = 0,
+				chaptersCount = chapters.size,
+			)
+		}
+		val branch = oldManga.getPreferredBranch(history.toMangaHistory())
+		val oldChapters = checkNotNull(oldManga.getChapters(branch))
+		var index = oldChapters.indexOfFirst { it.id == history.chapterId }
+		if (index < 0) {
+			index = if (history.percent in 0f..1f) {
+				(oldChapters.lastIndex * history.percent).toInt()
+			} else {
+				0
+			}
+		}
+		val newChapters = checkNotNull(newManga.chapters).groupBy { it.branch }
+		val newBranch = if (newChapters.containsKey(branch)) {
+			branch
+		} else {
+			newManga.getPreferredBranch(null)
+		}
+		val newChapterId = checkNotNull(newChapters[newBranch]).let {
+			val oldChapter = oldChapters[index]
+			it.findByNumber(oldChapter.volume, oldChapter.number) ?: it.getOrNull(index) ?: it.last()
+		}.id
+
+		return HistoryEntity(
+			mangaId = newManga.id,
+			createdAt = history.createdAt,
+			updatedAt = System.currentTimeMillis(),
+			chapterId = newChapterId,
+			page = history.page,
+			scroll = history.scroll,
+			percent = PROGRESS_NONE,
+			deletedAt = 0,
+			chaptersCount = checkNotNull(newChapters[newBranch]).size,
+		)
+	}
+
+	private fun List<MangaChapter>.findByNumber(volume: Int, number: Float): MangaChapter? {
+		return if (number <= 0f) {
+			null
+		} else {
+			firstOrNull { it.volume == volume && it.number == number }
+		}
+	}
+}

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

@@ -0,0 +1,91 @@
+package org.koitharu.kotatsu.alternatives.ui
+
+import android.text.style.ForegroundColorSpan
+import androidx.core.content.ContextCompat
+import androidx.core.text.buildSpannedString
+import androidx.core.text.inSpans
+import androidx.lifecycle.LifecycleOwner
+import coil.ImageLoader
+import coil.request.ImageRequest
+import coil.transform.CircleCropTransformation
+import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.parser.favicon.faviconUri
+import org.koitharu.kotatsu.core.ui.image.ChipIconTarget
+import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
+import org.koitharu.kotatsu.core.ui.image.TrimTransformation
+import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.util.ext.defaultPlaceholders
+import org.koitharu.kotatsu.core.util.ext.enqueueWith
+import org.koitharu.kotatsu.core.util.ext.newImageRequest
+import org.koitharu.kotatsu.core.util.ext.source
+import org.koitharu.kotatsu.databinding.ItemMangaAlternativeBinding
+import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import kotlin.math.sign
+import com.google.android.material.R as materialR
+
+fun alternativeAD(
+	coil: ImageLoader,
+	lifecycleOwner: LifecycleOwner,
+	listener: OnListItemClickListener<MangaAlternativeModel>,
+) = adapterDelegateViewBinding<MangaAlternativeModel, ListModel, ItemMangaAlternativeBinding>(
+	{ inflater, parent -> ItemMangaAlternativeBinding.inflate(inflater, parent, false) },
+) {
+
+	val colorGreen = ContextCompat.getColor(context, R.color.common_green)
+	val colorRed = ContextCompat.getColor(context, R.color.common_red)
+	val clickListener = AdapterDelegateClickListenerAdapter(this, listener)
+	itemView.setOnClickListener(clickListener)
+	binding.buttonMigrate.setOnClickListener(clickListener)
+	binding.chipSource.setOnClickListener(clickListener)
+
+	bind { payloads ->
+		binding.textViewTitle.text = item.manga.title
+		binding.textViewSubtitle.text = buildSpannedString {
+			if (item.chaptersCount > 0) {
+				append(context.resources.getQuantityString(R.plurals.chapters, item.chaptersCount, item.chaptersCount))
+			} else {
+				append(context.getString(R.string.no_chapters))
+			}
+			when (item.chaptersDiff.sign) {
+				-1 -> inSpans(ForegroundColorSpan(colorRed)) {
+					append("  ▼ ")
+					append(item.chaptersDiff.toString())
+				}
+
+				1 -> inSpans(ForegroundColorSpan(colorGreen)) {
+					append("  ▲ +")
+					append(item.chaptersDiff.toString())
+				}
+			}
+		}
+		binding.progressView.setPercent(item.progress, ListModelDiffCallback.PAYLOAD_PROGRESS_CHANGED in payloads)
+		binding.chipSource.also { chip ->
+			chip.text = item.manga.source.title
+			ImageRequest.Builder(context)
+				.data(item.manga.source.faviconUri())
+				.lifecycle(lifecycleOwner)
+				.crossfade(false)
+				.size(context.resources.getDimensionPixelSize(materialR.dimen.m3_chip_icon_size))
+				.target(ChipIconTarget(chip))
+				.placeholder(R.drawable.ic_web)
+				.fallback(R.drawable.ic_web)
+				.error(R.drawable.ic_web)
+				.source(item.manga.source)
+				.transformations(CircleCropTransformation())
+				.allowRgb565(true)
+				.enqueueWith(coil)
+		}
+		binding.imageViewCover.newImageRequest(lifecycleOwner, item.manga.coverUrl)?.run {
+			size(CoverSizeResolver(binding.imageViewCover))
+			defaultPlaceholders(context)
+			transformations(TrimTransformation())
+			allowRgb565(true)
+			tag(item.manga)
+			source(item.manga.source)
+			enqueueWith(coil)
+		}
+	}
+}

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

@@ -0,0 +1,114 @@
+package org.koitharu.kotatsu.alternatives.ui
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import android.widget.Toast
+import androidx.activity.viewModels
+import androidx.core.graphics.Insets
+import androidx.core.view.updatePadding
+import coil.ImageLoader
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import dagger.hilt.android.AndroidEntryPoint
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
+import org.koitharu.kotatsu.core.parser.MangaIntent
+import org.koitharu.kotatsu.core.ui.BaseActivity
+import org.koitharu.kotatsu.core.ui.BaseListAdapter
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.util.ext.DIALOG_THEME_CENTERED
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.databinding.ActivityAlternativesBinding
+import org.koitharu.kotatsu.details.ui.DetailsActivity
+import org.koitharu.kotatsu.list.ui.adapter.ListItemType
+import org.koitharu.kotatsu.list.ui.adapter.TypedListSpacingDecoration
+import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
+import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
+import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.search.ui.SearchActivity
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class AlternativesActivity : BaseActivity<ActivityAlternativesBinding>(),
+	OnListItemClickListener<MangaAlternativeModel> {
+
+	@Inject
+	lateinit var coil: ImageLoader
+
+	private val viewModel by viewModels<AlternativesViewModel>()
+
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setContentView(ActivityAlternativesBinding.inflate(layoutInflater))
+		supportActionBar?.run {
+			setDisplayHomeAsUpEnabled(true)
+			subtitle = viewModel.manga.title
+		}
+		val listAdapter = BaseListAdapter<ListModel>()
+			.addDelegate(ListItemType.MANGA_LIST_DETAILED, alternativeAD(coil, this, this))
+			.addDelegate(ListItemType.STATE_EMPTY, emptyStateListAD(coil, this, null))
+			.addDelegate(ListItemType.FOOTER_LOADING, loadingFooterAD())
+			.addDelegate(ListItemType.STATE_LOADING, loadingStateAD())
+		with(viewBinding.recyclerView) {
+			setHasFixedSize(true)
+			addItemDecoration(TypedListSpacingDecoration(context, addHorizontalPadding = false))
+			adapter = listAdapter
+		}
+
+		viewModel.onError.observeEvent(this, SnackbarErrorObserver(viewBinding.recyclerView, null))
+		viewModel.content.observe(this, listAdapter)
+		viewModel.onMigrated.observeEvent(this) {
+			Toast.makeText(this, R.string.migration_completed, Toast.LENGTH_SHORT).show()
+			startActivity(DetailsActivity.newIntent(this, it))
+			finishAfterTransition()
+		}
+	}
+
+	override fun onWindowInsetsChanged(insets: Insets) {
+		viewBinding.root.updatePadding(
+			left = insets.left,
+			right = insets.right,
+		)
+		viewBinding.recyclerView.updatePadding(
+			bottom = insets.bottom + viewBinding.recyclerView.paddingTop,
+		)
+	}
+
+	override fun onItemClick(item: MangaAlternativeModel, view: View) {
+		when (view.id) {
+			R.id.chip_source -> startActivity(SearchActivity.newIntent(this, item.manga.source, viewModel.manga.title))
+			R.id.button_migrate -> confirmMigration(item.manga)
+			else -> startActivity(DetailsActivity.newIntent(this, item.manga))
+		}
+	}
+
+	private fun confirmMigration(target: Manga) {
+		MaterialAlertDialogBuilder(this, DIALOG_THEME_CENTERED)
+			.setIcon(R.drawable.ic_replace)
+			.setTitle(R.string.manga_migration)
+			.setMessage(
+				getString(
+					R.string.migrate_confirmation,
+					viewModel.manga.title,
+					viewModel.manga.source.title,
+					target.title,
+					target.source.title,
+				),
+			)
+			.setNegativeButton(android.R.string.cancel, null)
+			.setPositiveButton(R.string.migrate) { _, _ ->
+				viewModel.migrate(target)
+			}.show()
+	}
+
+	companion object {
+
+		fun newIntent(context: Context, manga: Manga) = Intent(context, AlternativesActivity::class.java)
+			.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga))
+	}
+}

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

@@ -0,0 +1,98 @@
+package org.koitharu.kotatsu.alternatives.ui
+
+import androidx.lifecycle.SavedStateHandle
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEmpty
+import kotlinx.coroutines.flow.runningFold
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.alternatives.domain.AlternativesUseCase
+import org.koitharu.kotatsu.alternatives.domain.MigrateUseCase
+import org.koitharu.kotatsu.core.model.chaptersCount
+import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
+import org.koitharu.kotatsu.core.parser.MangaIntent
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
+import org.koitharu.kotatsu.core.util.ext.call
+import org.koitharu.kotatsu.core.util.ext.require
+import org.koitharu.kotatsu.list.domain.ListExtraProvider
+import org.koitharu.kotatsu.list.ui.model.EmptyState
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.model.LoadingFooter
+import org.koitharu.kotatsu.list.ui.model.LoadingState
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import javax.inject.Inject
+
+@HiltViewModel
+class AlternativesViewModel @Inject constructor(
+	savedStateHandle: SavedStateHandle,
+	private val mangaRepositoryFactory: MangaRepository.Factory,
+	private val alternativesUseCase: AlternativesUseCase,
+	private val migrateUseCase: MigrateUseCase,
+	private val extraProvider: ListExtraProvider,
+) : BaseViewModel() {
+
+	val manga = savedStateHandle.require<ParcelableManga>(MangaIntent.KEY_MANGA).manga
+
+	val onMigrated = MutableEventFlow<Manga>()
+	val content = MutableStateFlow<List<ListModel>>(listOf(LoadingState))
+	private var migrationJob: Job? = null
+
+	init {
+		launchJob(Dispatchers.Default) {
+			val ref = runCatchingCancellable {
+				mangaRepositoryFactory.create(manga.source).getDetails(manga)
+			}.getOrDefault(manga)
+			val refCount = ref.chaptersCount()
+			alternativesUseCase(ref)
+				.map {
+					MangaAlternativeModel(
+						manga = it,
+						progress = extraProvider.getProgress(it.id),
+						referenceChapters = refCount,
+					)
+				}.runningFold<MangaAlternativeModel, List<ListModel>>(listOf(LoadingState)) { acc, item ->
+					acc.filterIsInstance<MangaAlternativeModel>() + item + LoadingFooter()
+				}.onEmpty {
+					emit(
+						listOf(
+							EmptyState(
+								icon = R.drawable.ic_empty_common,
+								textPrimary = R.string.nothing_found,
+								textSecondary = R.string.text_search_holder_secondary,
+								actionStringRes = 0,
+							),
+						),
+					)
+				}.collect {
+					content.value = it
+				}
+			content.value = content.value.filterNot { it is LoadingFooter }
+		}
+	}
+
+	fun migrate(target: Manga) {
+		if (migrationJob?.isActive == true) {
+			return
+		}
+		migrationJob = launchLoadingJob(Dispatchers.Default) {
+			migrateUseCase(manga, target)
+			onMigrated.call(target)
+		}
+	}
+
+	private suspend fun mapList(list: List<Manga>, refCount: Int): List<MangaAlternativeModel> {
+		return list.map {
+			MangaAlternativeModel(
+				manga = it,
+				progress = extraProvider.getProgress(it.id),
+				referenceChapters = refCount,
+			)
+		}
+	}
+}

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

@@ -0,0 +1,21 @@
+package org.koitharu.kotatsu.alternatives.ui
+
+import org.koitharu.kotatsu.core.model.chaptersCount
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.parsers.model.Manga
+
+data class MangaAlternativeModel(
+	val manga: Manga,
+	val progress: Float,
+	private val referenceChapters: Int,
+) : ListModel {
+
+	val chaptersCount = manga.chaptersCount()
+
+	val chaptersDiff: Int
+		get() = if (referenceChapters == 0 || chaptersCount == 0) 0 else chaptersCount - referenceChapters
+
+	override fun areItemsTheSame(other: ListModel): Boolean {
+		return other is MangaAlternativeModel && other.manga.id == manga.id
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/data/BookmarksDao.kt

@@ -12,9 +12,6 @@ import org.koitharu.kotatsu.core.db.entity.MangaWithTags
 @Dao
 abstract class BookmarksDao {
 
-	@Query("SELECT * FROM bookmarks WHERE manga_id = :mangaId AND page_id = :pageId")
-	abstract suspend fun find(mangaId: Long, pageId: Long): BookmarkEntity?
-
 	@Query("SELECT * FROM bookmarks WHERE page_id = :pageId")
 	abstract suspend fun find(pageId: Long): BookmarkEntity?
 
@@ -42,9 +39,6 @@ abstract class BookmarksDao {
 	@Delete
 	abstract suspend fun delete(entity: BookmarkEntity)
 
-	@Query("DELETE FROM bookmarks WHERE manga_id = :mangaId AND page_id = :pageId")
-	abstract suspend fun delete(mangaId: Long, pageId: Long): Int
-
 	@Query("DELETE FROM bookmarks WHERE page_id = :pageId")
 	abstract suspend fun delete(pageId: Long): Int
 

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/AllBookmarksActivity.kt

@@ -16,7 +16,7 @@ import org.koitharu.kotatsu.main.ui.owners.AppBarOwner
 import org.koitharu.kotatsu.main.ui.owners.SnackbarOwner
 
 @AndroidEntryPoint
-class BookmarksActivity :
+class AllBookmarksActivity :
 	BaseActivity<ActivityContainerBinding>(),
 	AppBarOwner,
 	SnackbarOwner {
@@ -35,7 +35,7 @@ class BookmarksActivity :
 		if (fm.findFragmentById(R.id.container) == null) {
 			fm.commit {
 				setReorderingAllowed(true)
-				replace(R.id.container, BookmarksFragment::class.java, null)
+				replace(R.id.container, AllBookmarksFragment::class.java, null)
 			}
 		}
 	}
@@ -49,6 +49,6 @@ class BookmarksActivity :
 
 	companion object {
 
-		fun newIntent(context: Context) = Intent(context, BookmarksActivity::class.java)
+		fun newIntent(context: Context) = Intent(context, AllBookmarksActivity::class.java)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/AllBookmarksFragment.kt

@@ -17,7 +17,7 @@ import coil.ImageLoader
 import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.bookmarks.ui.sheet.BookmarksAdapter
+import org.koitharu.kotatsu.bookmarks.ui.adapter.BookmarksAdapter
 import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.BaseFragment
@@ -25,11 +25,12 @@ import org.koitharu.kotatsu.core.ui.list.ListSelectionController
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
 import org.koitharu.kotatsu.core.ui.util.ReversibleActionObserver
+import org.koitharu.kotatsu.core.util.ext.findAppCompatDelegate
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
 import org.koitharu.kotatsu.databinding.FragmentListSimpleBinding
 import org.koitharu.kotatsu.details.ui.DetailsActivity
-import org.koitharu.kotatsu.list.ui.MangaListSpanResolver
+import org.koitharu.kotatsu.list.ui.GridSpanResolver
 import org.koitharu.kotatsu.list.ui.adapter.ListHeaderClickListener
 import org.koitharu.kotatsu.list.ui.adapter.ListItemType
 import org.koitharu.kotatsu.list.ui.adapter.ListStateHolderListener
@@ -41,7 +42,7 @@ import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import javax.inject.Inject
 
 @AndroidEntryPoint
-class BookmarksFragment :
+class AllBookmarksFragment :
 	BaseFragment<FragmentListSimpleBinding>(),
 	ListStateHolderListener,
 	OnListItemClickListener<Bookmark>,
@@ -54,7 +55,7 @@ class BookmarksFragment :
 	@Inject
 	lateinit var settings: AppSettings
 
-	private val viewModel by viewModels<BookmarksViewModel>()
+	private val viewModel by viewModels<AllBookmarksViewModel>()
 	private var bookmarksAdapter: BookmarksAdapter? = null
 	private var selectionController: ListSelectionController? = null
 
@@ -71,7 +72,7 @@ class BookmarksFragment :
 	) {
 		super.onViewBindingCreated(binding, savedInstanceState)
 		selectionController = ListSelectionController(
-			activity = requireActivity(),
+			appCompatDelegate = checkNotNull(findAppCompatDelegate()),
 			decoration = BookmarksSelectionDecoration(binding.root.context),
 			registryOwner = this,
 			callback = this,
@@ -85,7 +86,7 @@ class BookmarksFragment :
 		val spanSizeLookup = SpanSizeLookup()
 		with(binding.recyclerView) {
 			setHasFixedSize(true)
-			val spanResolver = MangaListSpanResolver(resources)
+			val spanResolver = GridSpanResolver(resources)
 			addItemDecoration(TypedListSpacingDecoration(context, false))
 			adapter = bookmarksAdapter
 			addOnLayoutChangeListener(spanResolver)
@@ -100,7 +101,7 @@ class BookmarksFragment :
 		}
 		viewModel.onError.observeEvent(
 			viewLifecycleOwner,
-			SnackbarErrorObserver(binding.recyclerView, this)
+			SnackbarErrorObserver(binding.recyclerView, this),
 		)
 		viewModel.onActionDone.observeEvent(viewLifecycleOwner, ReversibleActionObserver(binding.recyclerView))
 	}
@@ -206,11 +207,12 @@ class BookmarksFragment :
 	companion object {
 
 		@Deprecated(
-			"", ReplaceWith(
+			"",
+			ReplaceWith(
 				"BookmarksFragment()",
-				"org.koitharu.kotatsu.bookmarks.ui.BookmarksFragment"
-			)
+				"org.koitharu.kotatsu.bookmarks.ui.BookmarksFragment",
+			),
 		)
-		fun newInstance() = BookmarksFragment()
+		fun newInstance() = AllBookmarksFragment()
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/AllBookmarksViewModel.kt

@@ -25,7 +25,7 @@ import org.koitharu.kotatsu.parsers.model.Manga
 import javax.inject.Inject
 
 @HiltViewModel
-class BookmarksViewModel @Inject constructor(
+class AllBookmarksViewModel @Inject constructor(
 	private val repository: BookmarksRepository,
 ) : BaseViewModel() {
 

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/adapter/BookmarkLargeAD.kt

@@ -1,14 +1,14 @@
-package org.koitharu.kotatsu.bookmarks.ui.sheet
+package org.koitharu.kotatsu.bookmarks.ui.adapter
 
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
-import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
 import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.util.ext.decodeRegion
+import org.koitharu.kotatsu.core.util.ext.defaultPlaceholders
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.source
@@ -30,9 +30,7 @@ fun bookmarkLargeAD(
 	bind {
 		binding.imageViewThumb.newImageRequest(lifecycleOwner, item.imageLoadData)?.run {
 			size(CoverSizeResolver(binding.imageViewThumb))
-			placeholder(R.drawable.ic_placeholder)
-			fallback(R.drawable.ic_placeholder)
-			error(R.drawable.ic_error_placeholder)
+			defaultPlaceholders(context)
 			allowRgb565(true)
 			tag(item)
 			decodeRegion(item.scroll)

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/adapter/BookmarkListAD.kt

@@ -3,12 +3,12 @@ package org.koitharu.kotatsu.bookmarks.ui.adapter
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
-import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
 import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.util.ext.decodeRegion
+import org.koitharu.kotatsu.core.util.ext.defaultPlaceholders
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.source
@@ -29,9 +29,7 @@ fun bookmarkListAD(
 	bind {
 		binding.imageViewThumb.newImageRequest(lifecycleOwner, item.imageLoadData)?.run {
 			size(CoverSizeResolver(binding.imageViewThumb))
-			placeholder(R.drawable.ic_placeholder)
-			fallback(R.drawable.ic_placeholder)
-			error(R.drawable.ic_error_placeholder)
+			defaultPlaceholders(context)
 			allowRgb565(true)
 			tag(item)
 			decodeRegion(item.scroll)

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/adapter/BookmarksAdapter.kt

@@ -1,19 +1,36 @@
 package org.koitharu.kotatsu.bookmarks.ui.adapter
 
+import android.content.Context
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.core.ui.BaseListAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
+import org.koitharu.kotatsu.list.ui.adapter.ListHeaderClickListener
 import org.koitharu.kotatsu.list.ui.adapter.ListItemType
+import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
+import org.koitharu.kotatsu.list.ui.adapter.listHeaderAD
+import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
+import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
+import org.koitharu.kotatsu.list.ui.model.ListModel
 
 class BookmarksAdapter(
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
 	clickListener: OnListItemClickListener<Bookmark>,
-) : BaseListAdapter<Bookmark>() {
+	headerClickListener: ListHeaderClickListener?,
+) : BaseListAdapter<ListModel>(), FastScroller.SectionIndexer {
 
 	init {
-		addDelegate(ListItemType.PAGE_THUMB, bookmarkListAD(coil, lifecycleOwner, clickListener))
+		addDelegate(ListItemType.PAGE_THUMB, bookmarkLargeAD(coil, lifecycleOwner, clickListener))
+		addDelegate(ListItemType.HEADER, listHeaderAD(headerClickListener))
+		addDelegate(ListItemType.FOOTER_LOADING, loadingFooterAD())
+		addDelegate(ListItemType.STATE_LOADING, loadingStateAD())
+		addDelegate(ListItemType.STATE_EMPTY, emptyStateListAD(coil, lifecycleOwner, null))
+	}
+
+	override fun getSectionText(context: Context, position: Int): CharSequence? {
+		return findHeader(position)?.getText(context)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksAdapter.kt

@@ -1,36 +0,0 @@
-package org.koitharu.kotatsu.bookmarks.ui.sheet
-
-import android.content.Context
-import androidx.lifecycle.LifecycleOwner
-import coil.ImageLoader
-import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.core.ui.BaseListAdapter
-import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
-import org.koitharu.kotatsu.list.ui.adapter.ListHeaderClickListener
-import org.koitharu.kotatsu.list.ui.adapter.ListItemType
-import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
-import org.koitharu.kotatsu.list.ui.adapter.listHeaderAD
-import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
-import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
-import org.koitharu.kotatsu.list.ui.model.ListModel
-
-class BookmarksAdapter(
-	coil: ImageLoader,
-	lifecycleOwner: LifecycleOwner,
-	clickListener: OnListItemClickListener<Bookmark>,
-	headerClickListener: ListHeaderClickListener?,
-) : BaseListAdapter<ListModel>(), FastScroller.SectionIndexer {
-
-	init {
-		addDelegate(ListItemType.PAGE_THUMB, bookmarkLargeAD(coil, lifecycleOwner, clickListener))
-		addDelegate(ListItemType.HEADER, listHeaderAD(headerClickListener))
-		addDelegate(ListItemType.FOOTER_LOADING, loadingFooterAD())
-		addDelegate(ListItemType.STATE_LOADING, loadingStateAD())
-		addDelegate(ListItemType.STATE_EMPTY, emptyStateListAD(coil, lifecycleOwner, null))
-	}
-
-	override fun getSectionText(context: Context, position: Int): CharSequence? {
-		return findHeader(position)?.getText(context)
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksSheet.kt

@@ -1,169 +0,0 @@
-package org.koitharu.kotatsu.bookmarks.ui.sheet
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.FragmentManager
-import androidx.fragment.app.viewModels
-import androidx.recyclerview.widget.GridLayoutManager
-import coil.ImageLoader
-import dagger.hilt.android.AndroidEntryPoint
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
-import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetBehavior
-import org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetCallback
-import org.koitharu.kotatsu.core.ui.sheet.BaseAdaptiveSheet
-import org.koitharu.kotatsu.core.util.RecyclerViewScrollCallback
-import org.koitharu.kotatsu.core.util.ext.observe
-import org.koitharu.kotatsu.core.util.ext.observeEvent
-import org.koitharu.kotatsu.core.util.ext.plus
-import org.koitharu.kotatsu.core.util.ext.showDistinct
-import org.koitharu.kotatsu.core.util.ext.withArgs
-import org.koitharu.kotatsu.databinding.SheetPagesBinding
-import org.koitharu.kotatsu.list.ui.MangaListSpanResolver
-import org.koitharu.kotatsu.list.ui.adapter.ListItemType
-import org.koitharu.kotatsu.list.ui.adapter.TypedListSpacingDecoration
-import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.reader.ui.ReaderActivity.IntentBuilder
-import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
-import org.koitharu.kotatsu.reader.ui.thumbnails.OnPageSelectListener
-import org.koitharu.kotatsu.reader.ui.thumbnails.PageThumbnail
-import javax.inject.Inject
-import kotlin.math.roundToInt
-
-@AndroidEntryPoint
-class BookmarksSheet :
-	BaseAdaptiveSheet<SheetPagesBinding>(),
-	AdaptiveSheetCallback,
-	OnListItemClickListener<Bookmark> {
-
-	private val viewModel by viewModels<BookmarksSheetViewModel>()
-
-	@Inject
-	lateinit var coil: ImageLoader
-
-	@Inject
-	lateinit var settings: AppSettings
-
-	private var bookmarksAdapter: BookmarksAdapter? = null
-	private var spanResolver: MangaListSpanResolver? = null
-
-	private val spanSizeLookup = SpanSizeLookup()
-	private val listCommitCallback = Runnable {
-		spanSizeLookup.invalidateCache()
-	}
-
-	override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): SheetPagesBinding {
-		return SheetPagesBinding.inflate(inflater, container, false)
-	}
-
-	override fun onViewBindingCreated(binding: SheetPagesBinding, savedInstanceState: Bundle?) {
-		super.onViewBindingCreated(binding, savedInstanceState)
-		addSheetCallback(this)
-		spanResolver = MangaListSpanResolver(binding.root.resources)
-		bookmarksAdapter = BookmarksAdapter(
-			coil = coil,
-			lifecycleOwner = viewLifecycleOwner,
-			clickListener = this@BookmarksSheet,
-			headerClickListener = null,
-		)
-		viewBinding?.headerBar?.setTitle(R.string.bookmarks)
-		with(binding.recyclerView) {
-			addItemDecoration(TypedListSpacingDecoration(context, false))
-			adapter = bookmarksAdapter
-			addOnLayoutChangeListener(spanResolver)
-			spanResolver?.setGridSize(settings.gridSize / 100f, this)
-			(layoutManager as GridLayoutManager).spanSizeLookup = spanSizeLookup
-		}
-		viewModel.content.observe(viewLifecycleOwner, ::onThumbnailsChanged)
-		viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(binding.recyclerView, this))
-	}
-
-	override fun onDestroyView() {
-		spanResolver = null
-		bookmarksAdapter = null
-		spanSizeLookup.invalidateCache()
-		super.onDestroyView()
-	}
-
-	override fun onItemClick(item: Bookmark, view: View) {
-		val listener = (parentFragment as? OnPageSelectListener) ?: (activity as? OnPageSelectListener)
-		if (listener != null) {
-			listener.onPageSelected(ReaderPage(item.toMangaPage(), item.page, item.chapterId))
-		} else {
-			val intent = IntentBuilder(view.context)
-				.manga(viewModel.manga)
-				.bookmark(item)
-				.incognito(true)
-				.build()
-			startActivity(intent)
-		}
-		dismiss()
-	}
-
-	override fun onStateChanged(sheet: View, newState: Int) {
-		viewBinding?.recyclerView?.isFastScrollerEnabled = newState == AdaptiveSheetBehavior.STATE_EXPANDED
-	}
-
-	private fun onThumbnailsChanged(list: List<ListModel>) {
-		val adapter = bookmarksAdapter ?: return
-		if (adapter.itemCount == 0) {
-			var position = list.indexOfFirst { it is PageThumbnail && it.isCurrent }
-			if (position > 0) {
-				val spanCount = spanResolver?.spanCount ?: 0
-				val offset = if (position > spanCount + 1) {
-					(resources.getDimensionPixelSize(R.dimen.manga_list_details_item_height) * 0.6).roundToInt()
-				} else {
-					position = 0
-					0
-				}
-				val scrollCallback = RecyclerViewScrollCallback(requireViewBinding().recyclerView, position, offset)
-				adapter.setItems(list, listCommitCallback + scrollCallback)
-			} else {
-				adapter.setItems(list, listCommitCallback)
-			}
-		} else {
-			adapter.setItems(list, listCommitCallback)
-		}
-	}
-
-	private inner class SpanSizeLookup : GridLayoutManager.SpanSizeLookup() {
-
-		init {
-			isSpanIndexCacheEnabled = true
-			isSpanGroupIndexCacheEnabled = true
-		}
-
-		override fun getSpanSize(position: Int): Int {
-			val total = (viewBinding?.recyclerView?.layoutManager as? GridLayoutManager)?.spanCount ?: return 1
-			return when (bookmarksAdapter?.getItemViewType(position)) {
-				ListItemType.PAGE_THUMB.ordinal -> 1
-				else -> total
-			}
-		}
-
-		fun invalidateCache() {
-			invalidateSpanGroupIndexCache()
-			invalidateSpanIndexCache()
-		}
-	}
-
-	companion object {
-
-		const val ARG_MANGA = "manga"
-
-		private const val TAG = "BookmarksSheet"
-
-		fun show(fm: FragmentManager, manga: Manga) {
-			BookmarksSheet().withArgs(1) {
-				putParcelable(ARG_MANGA, ParcelableManga(manga))
-			}.showDistinct(fm, TAG)
-		}
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksSheetViewModel.kt

@@ -1,55 +0,0 @@
-package org.koitharu.kotatsu.bookmarks.ui.sheet
-
-import androidx.lifecycle.SavedStateHandle
-import androidx.lifecycle.viewModelScope
-import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.plus
-import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.bookmarks.domain.BookmarksRepository
-import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
-import org.koitharu.kotatsu.core.parser.MangaRepository
-import org.koitharu.kotatsu.core.ui.BaseViewModel
-import org.koitharu.kotatsu.core.util.ext.require
-import org.koitharu.kotatsu.list.ui.model.ListHeader
-import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.list.ui.model.LoadingFooter
-import org.koitharu.kotatsu.parsers.util.SuspendLazy
-import javax.inject.Inject
-
-@HiltViewModel
-class BookmarksSheetViewModel @Inject constructor(
-	savedStateHandle: SavedStateHandle,
-	mangaRepositoryFactory: MangaRepository.Factory,
-	bookmarksRepository: BookmarksRepository,
-) : BaseViewModel() {
-
-	val manga = savedStateHandle.require<ParcelableManga>(BookmarksSheet.ARG_MANGA).manga
-	private val chaptersLazy = SuspendLazy {
-		requireNotNull(manga.chapters ?: mangaRepositoryFactory.create(manga.source).getDetails(manga).chapters)
-	}
-
-	val content: StateFlow<List<ListModel>> = bookmarksRepository.observeBookmarks(manga)
-		.map { mapList(it) }
-		.withErrorHandling()
-		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Lazily, listOf(LoadingFooter()))
-
-	private suspend fun mapList(bookmarks: List<Bookmark>): List<ListModel> {
-		val chapters = chaptersLazy.get()
-		val bookmarksMap = bookmarks.groupBy { it.chapterId }
-		val result = ArrayList<ListModel>(bookmarks.size + bookmarksMap.size)
-		for (chapter in chapters) {
-			val b = bookmarksMap[chapter.id]
-			if (b.isNullOrEmpty()) {
-				continue
-			}
-			result += ListHeader(chapter.name)
-			result.addAll(b)
-		}
-		return result
-	}
-}

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

@@ -1,6 +1,5 @@
 package org.koitharu.kotatsu.browser
 
-import android.annotation.SuppressLint
 import android.content.ActivityNotFoundException
 import android.content.Context
 import android.content.Intent
@@ -12,31 +11,42 @@ import android.webkit.CookieManager
 import androidx.core.graphics.Insets
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
+import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.network.CommonHeaders
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.core.ui.BaseActivity
-import org.koitharu.kotatsu.core.util.ext.catchingWebViewUnavailability
+import org.koitharu.kotatsu.core.util.ext.configureForParser
+import org.koitharu.kotatsu.core.util.ext.getSerializableExtraCompat
+import org.koitharu.kotatsu.core.util.ext.toUriOrNull
 import org.koitharu.kotatsu.databinding.ActivityBrowserBinding
-import org.koitharu.kotatsu.parsers.network.UserAgents
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import javax.inject.Inject
 import com.google.android.material.R as materialR
 
-@SuppressLint("SetJavaScriptEnabled")
+@AndroidEntryPoint
 class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback {
 
 	private lateinit var onBackPressedCallback: WebViewBackPressedCallback
 
+	@Inject
+	lateinit var mangaRepositoryFactory: MangaRepository.Factory
+
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
-		if (!catchingWebViewUnavailability { setContentView(ActivityBrowserBinding.inflate(layoutInflater)) }) {
+		if (!setContentViewWebViewSafe { ActivityBrowserBinding.inflate(layoutInflater) }) {
 			return
 		}
 		supportActionBar?.run {
 			setDisplayHomeAsUpEnabled(true)
 			setHomeAsUpIndicator(materialR.drawable.abc_ic_clear_material)
 		}
-		with(viewBinding.webView.settings) {
-			javaScriptEnabled = true
-			userAgentString = UserAgents.CHROME_MOBILE
+		val userAgent = intent?.getSerializableExtraCompat<MangaSource>(EXTRA_SOURCE)?.let { source ->
+			val repository = mangaRepositoryFactory.create(source) as? RemoteMangaRepository
+			repository?.headers?.get(CommonHeaders.USER_AGENT)
 		}
+		viewBinding.webView.configureForParser(userAgent)
 		CookieManager.getInstance().setAcceptThirdPartyCookies(viewBinding.webView, true)
 		viewBinding.webView.webViewClient = BrowserClient(this)
 		viewBinding.webView.webChromeClient = ProgressChromeClient(viewBinding.progressBar)
@@ -57,16 +67,6 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 		}
 	}
 
-	override fun onSaveInstanceState(outState: Bundle) {
-		super.onSaveInstanceState(outState)
-		viewBinding.webView.saveState(outState)
-	}
-
-	override fun onRestoreInstanceState(savedInstanceState: Bundle) {
-		super.onRestoreInstanceState(savedInstanceState)
-		viewBinding.webView.restoreState(savedInstanceState)
-	}
-
 	override fun onCreateOptionsMenu(menu: Menu): Boolean {
 		super.onCreateOptionsMenu(menu)
 		menuInflater.inflate(R.menu.opt_browser, menu)
@@ -81,11 +81,14 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 		}
 
 		R.id.action_browser -> {
-			val intent = Intent(Intent.ACTION_VIEW)
-			intent.data = Uri.parse(viewBinding.webView.url)
-			try {
-				startActivity(Intent.createChooser(intent, item.title))
-			} catch (_: ActivityNotFoundException) {
+			val url = viewBinding.webView.url?.toUriOrNull()
+			if (url != null) {
+				val intent = Intent(Intent.ACTION_VIEW)
+				intent.data = url
+				try {
+					startActivity(Intent.createChooser(intent, item.title))
+				} catch (_: ActivityNotFoundException) {
+				}
 			}
 			true
 		}
@@ -105,8 +108,10 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 
 	override fun onDestroy() {
 		super.onDestroy()
-		viewBinding.webView.stopLoading()
-		viewBinding.webView.destroy()
+		if (hasViewBinding()) {
+			viewBinding.webView.stopLoading()
+			viewBinding.webView.destroy()
+		}
 	}
 
 	override fun onLoadingStateChanged(isLoading: Boolean) {
@@ -136,11 +141,13 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 	companion object {
 
 		private const val EXTRA_TITLE = "title"
+		private const val EXTRA_SOURCE = "source"
 
-		fun newIntent(context: Context, url: String, title: String?): Intent {
+		fun newIntent(context: Context, url: String, source: MangaSource?, title: String?): Intent {
 			return Intent(context, BrowserActivity::class.java)
 				.setData(Uri.parse(url))
 				.putExtra(EXTRA_TITLE, title)
+				.putExtra(EXTRA_SOURCE, source)
 		}
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/browser/cloudflare/CaptchaNotifier.kt

@@ -1,6 +1,9 @@
 package org.koitharu.kotatsu.browser.cloudflare
 
 import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.provider.Settings
 import androidx.core.app.NotificationChannelCompat
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
@@ -20,7 +23,7 @@ class CaptchaNotifier(
 ) : EventListener {
 
 	fun notify(exception: CloudFlareProtectedException) {
-		if (!context.checkNotificationPermission()) {
+		if (!context.checkNotificationPermission(CHANNEL_ID)) {
 			return
 		}
 		val manager = NotificationManagerCompat.from(context)
@@ -33,13 +36,14 @@ class CaptchaNotifier(
 			.build()
 		manager.createNotificationChannel(channel)
 
-		val intent = CloudFlareActivity.newIntent(context, exception.url, exception.headers)
+		val intent = CloudFlareActivity.newIntent(context, exception)
 			.setData(exception.url.toUri())
 		val notification = NotificationCompat.Builder(context, CHANNEL_ID)
 			.setContentTitle(channel.name)
 			.setPriority(NotificationCompat.PRIORITY_DEFAULT)
 			.setDefaults(NotificationCompat.DEFAULT_SOUND)
 			.setSmallIcon(android.R.drawable.stat_notify_error)
+			.setGroup(GROUP_CAPTCHA)
 			.setAutoCancel(true)
 			.setVisibility(
 				if (exception.source?.contentType == ContentType.HENTAI) {
@@ -55,8 +59,21 @@ class CaptchaNotifier(
 				),
 			)
 			.setContentIntent(PendingIntentCompat.getActivity(context, 0, intent, 0, false))
-			.build()
-		manager.notify(TAG, exception.source.hashCode(), notification)
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+			val actionIntent = PendingIntentCompat.getActivity(
+				context, SETTINGS_ACTION_CODE,
+				Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS)
+					.putExtra(Settings.EXTRA_APP_PACKAGE, context.packageName)
+					.putExtra(Settings.EXTRA_CHANNEL_ID, CHANNEL_ID),
+				0, false,
+			)
+			notification.addAction(
+				R.drawable.ic_settings,
+				context.getString(R.string.notifications_settings),
+				actionIntent,
+			)
+		}
+		manager.notify(TAG, exception.source.hashCode(), notification.build())
 	}
 
 	fun dismiss(source: MangaSource) {
@@ -82,5 +99,7 @@ class CaptchaNotifier(
 		private const val PARAM_IGNORE_CAPTCHA = "ignore_captcha"
 		private const val CHANNEL_ID = "captcha"
 		private const val TAG = CHANNEL_ID
+		private const val GROUP_CAPTCHA = "org.koitharu.kotatsu.CAPTCHA"
+		private const val SETTINGS_ACTION_CODE = 3
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/browser/cloudflare/CloudFlareActivity.kt

@@ -23,13 +23,15 @@ import okhttp3.HttpUrl
 import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.browser.WebViewBackPressedCallback
+import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.network.CommonHeaders
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
 import org.koitharu.kotatsu.core.ui.BaseActivity
 import org.koitharu.kotatsu.core.util.TaggedActivityResult
-import org.koitharu.kotatsu.core.util.ext.catchingWebViewUnavailability
+import org.koitharu.kotatsu.core.util.ext.configureForParser
 import org.koitharu.kotatsu.databinding.ActivityBrowserBinding
-import org.koitharu.kotatsu.parsers.network.UserAgents
+import org.koitharu.kotatsu.parsers.model.MangaSource
 import javax.inject.Inject
 import com.google.android.material.R as materialR
 
@@ -41,17 +43,12 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 	@Inject
 	lateinit var cookieJar: MutableCookieJar
 
+	private lateinit var cfClient: CloudFlareClient
 	private var onBackPressedCallback: WebViewBackPressedCallback? = null
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
-		if (!catchingWebViewUnavailability {
-				setContentView(
-					ActivityBrowserBinding.inflate(
-						layoutInflater,
-					),
-				)
-			}) {
+		if (!setContentViewWebViewSafe { ActivityBrowserBinding.inflate(layoutInflater) }) {
 			return
 		}
 		supportActionBar?.run {
@@ -59,13 +56,9 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 			setHomeAsUpIndicator(materialR.drawable.abc_ic_clear_material)
 		}
 		val url = intent?.dataString.orEmpty()
-		with(viewBinding.webView.settings) {
-			javaScriptEnabled = true
-			domStorageEnabled = true
-			databaseEnabled = true
-			userAgentString = intent?.getStringExtra(ARG_UA) ?: UserAgents.CHROME_MOBILE
-		}
-		viewBinding.webView.webViewClient = CloudFlareClient(cookieJar, this, url)
+		cfClient = CloudFlareClient(cookieJar, this, url)
+		viewBinding.webView.configureForParser(intent?.getStringExtra(ARG_UA))
+		viewBinding.webView.webViewClient = cfClient
 		onBackPressedCallback = WebViewBackPressedCallback(viewBinding.webView).also {
 			onBackPressedDispatcher.addCallback(it)
 		}
@@ -91,16 +84,6 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 		super.onDestroy()
 	}
 
-	override fun onSaveInstanceState(outState: Bundle) {
-		super.onSaveInstanceState(outState)
-		viewBinding.webView.saveState(outState)
-	}
-
-	override fun onRestoreInstanceState(savedInstanceState: Bundle) {
-		super.onRestoreInstanceState(savedInstanceState)
-		viewBinding.webView.restoreState(savedInstanceState)
-	}
-
 	override fun onCreateOptionsMenu(menu: Menu?): Boolean {
 		menuInflater.inflate(R.menu.opt_captcha, menu)
 		return super.onCreateOptionsMenu(menu)
@@ -125,15 +108,7 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 		}
 
 		R.id.action_retry -> {
-			lifecycleScope.launch {
-				viewBinding.webView.stopLoading()
-				yield()
-				val targetUrl = intent?.dataString?.toHttpUrlOrNull()
-				if (targetUrl != null) {
-					clearCfCookies(targetUrl)
-					viewBinding.webView.loadUrl(targetUrl.toString())
-				}
-			}
+			restartCheck()
 			true
 		}
 
@@ -159,8 +134,16 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 		viewBinding.progressBar.isInvisible = true
 	}
 
+	override fun onLoopDetected() {
+		restartCheck()
+	}
+
 	override fun onCheckPassed() {
 		pendingResult = RESULT_OK
+		val source = intent?.getStringExtra(ARG_SOURCE)
+		if (source != null) {
+			CaptchaNotifier(this).dismiss(MangaSource(source))
+		}
 		finishAfterTransition()
 	}
 
@@ -178,16 +161,29 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 			subtitle?.toString()?.toHttpUrlOrNull()?.topPrivateDomain() ?: subtitle
 	}
 
-	private suspend fun clearCfCookies(url: HttpUrl) = runInterruptible(Dispatchers.Default) {
-		cookieJar.removeCookies(url) { cookie ->
-			val name = cookie.name
-			name.startsWith("cf_") || name.startsWith("_cf") || name.startsWith("__cf")
+	private fun restartCheck() {
+		lifecycleScope.launch {
+			viewBinding.webView.stopLoading()
+			yield()
+			cfClient.reset()
+			val targetUrl = intent?.dataString?.toHttpUrlOrNull()
+			if (targetUrl != null) {
+				clearCfCookies(targetUrl)
+				viewBinding.webView.loadUrl(targetUrl.toString())
+			}
 		}
 	}
 
-	class Contract : ActivityResultContract<Pair<String, Headers?>, TaggedActivityResult>() {
-		override fun createIntent(context: Context, input: Pair<String, Headers?>): Intent {
-			return newIntent(context, input.first, input.second)
+	private suspend fun clearCfCookies(url: HttpUrl) = runInterruptible(Dispatchers.Default) {
+		cookieJar.removeCookies(url) { cookie ->
+			val name = cookie.name
+			name.startsWith("cf_") || name.startsWith("_cf") || name.startsWith("__cf") || name == "csrftoken"
+		}
+	}
+
+	class Contract : ActivityResultContract<CloudFlareProtectedException, TaggedActivityResult>() {
+		override fun createIntent(context: Context, input: CloudFlareProtectedException): Intent {
+			return newIntent(context, input)
 		}
 
 		override fun parseResult(resultCode: Int, intent: Intent?): TaggedActivityResult {
@@ -199,13 +195,23 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 
 		const val TAG = "CloudFlareActivity"
 		private const val ARG_UA = "ua"
+		private const val ARG_SOURCE = "_source"
 
-		fun newIntent(
+		fun newIntent(context: Context, exception: CloudFlareProtectedException) = newIntent(
+			context = context,
+			url = exception.url,
+			source = exception.source,
+			headers = exception.headers,
+		)
+
+		private fun newIntent(
 			context: Context,
 			url: String,
+			source: MangaSource?,
 			headers: Headers?,
 		) = Intent(context, CloudFlareActivity::class.java).apply {
 			data = url.toUri()
+			putExtra(ARG_SOURCE, source?.name)
 			headers?.get(CommonHeaders.USER_AGENT)?.let {
 				putExtra(ARG_UA, it)
 			}

app/src/main/kotlin/org/koitharu/kotatsu/browser/cloudflare/CloudFlareCallback.kt

@@ -11,4 +11,6 @@ interface CloudFlareCallback : BrowserCallback {
 	fun onPageLoaded()
 
 	fun onCheckPassed()
+
+	fun onLoopDetected()
 }

app/src/main/kotlin/org/koitharu/kotatsu/browser/cloudflare/CloudFlareClient.kt

@@ -7,6 +7,7 @@ import org.koitharu.kotatsu.browser.BrowserClient
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
 
 private const val CF_CLEARANCE = "cf_clearance"
+private const val LOOP_COUNTER = 3
 
 class CloudFlareClient(
 	private val cookieJar: MutableCookieJar,
@@ -15,6 +16,7 @@ class CloudFlareClient(
 ) : BrowserClient(callback) {
 
 	private val oldClearance = getClearance()
+	private var counter = 0
 
 	override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
 		super.onPageStarted(view, url, favicon)
@@ -31,10 +33,20 @@ class CloudFlareClient(
 		callback.onPageLoaded()
 	}
 
+	fun reset() {
+		counter = 0
+	}
+
 	private fun checkClearance() {
 		val clearance = getClearance()
 		if (clearance != null && clearance != oldClearance) {
 			callback.onCheckPassed()
+		} else {
+			counter++
+			if (counter >= LOOP_COUNTER) {
+				reset()
+				callback.onLoopDetected()
+			}
 		}
 	}
 

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

@@ -26,23 +26,22 @@ import kotlinx.coroutines.flow.asSharedFlow
 import okhttp3.OkHttpClient
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.browser.cloudflare.CaptchaNotifier
-import org.koitharu.kotatsu.core.cache.ContentCache
-import org.koitharu.kotatsu.core.cache.MemoryContentCache
-import org.koitharu.kotatsu.core.cache.StubContentCache
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.network.ImageProxyInterceptor
 import org.koitharu.kotatsu.core.network.MangaHttpClient
+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.IncognitoModeIndicator
 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.CbzFetcher
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
@@ -50,11 +49,11 @@ import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.main.domain.CoverRestoreInterceptor
 import org.koitharu.kotatsu.main.ui.protect.AppProtectHelper
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
-import org.koitharu.kotatsu.reader.ui.thumbnails.MangaPageFetcher
 import org.koitharu.kotatsu.search.ui.MangaSuggestionsProvider
 import org.koitharu.kotatsu.settings.backup.BackupObserver
 import org.koitharu.kotatsu.sync.domain.SyncController
 import org.koitharu.kotatsu.widget.WidgetUpdater
+import javax.inject.Provider
 import javax.inject.Singleton
 
 @Module
@@ -72,8 +71,9 @@ interface AppModule {
 		@Provides
 		@Singleton
 		fun provideNetworkState(
-			@ApplicationContext context: Context
-		) = NetworkState(context.connectivityManager)
+			@ApplicationContext context: Context,
+			settings: AppSettings,
+		) = NetworkState(context.connectivityManager, settings)
 
 		@Provides
 		@Singleton
@@ -87,7 +87,7 @@ interface AppModule {
 		@Singleton
 		fun provideCoil(
 			@ApplicationContext context: Context,
-			@MangaHttpClient okHttpClient: OkHttpClient,
+			@MangaHttpClient okHttpClientProvider: Provider<OkHttpClient>,
 			mangaRepositoryFactory: MangaRepository.Factory,
 			imageProxyInterceptor: ImageProxyInterceptor,
 			pageFetcherFactory: MangaPageFetcher.Factory,
@@ -99,11 +99,14 @@ interface AppModule {
 					.directory(rootDir.resolve(CacheDir.THUMBS.dir))
 					.build()
 			}
+			val okHttpClientLazy = lazy {
+				okHttpClientProvider.get().newBuilder().cache(null).build()
+			}
 			return ImageLoader.Builder(context)
-				.okHttpClient(okHttpClient.newBuilder().cache(null).build())
+				.okHttpClient { okHttpClientLazy.value }
 				.interceptorDispatcher(Dispatchers.Default)
-				.fetcherDispatcher(Dispatchers.IO)
-				.decoderDispatcher(Dispatchers.Default)
+				.fetcherDispatcher(Dispatchers.Default)
+				.decoderDispatcher(Dispatchers.IO)
 				.transformationDispatcher(Dispatchers.Default)
 				.diskCache(diskCacheFactory)
 				.logger(if (BuildConfig.DEBUG) DebugLogger() else null)
@@ -113,7 +116,8 @@ interface AppModule {
 					ComponentRegistry.Builder()
 						.add(SvgDecoder.Factory())
 						.add(CbzFetcher.Factory())
-						.add(FaviconFetcher.Factory(context, okHttpClient, mangaRepositoryFactory))
+						.add(FaviconFetcher.Factory(context, okHttpClientLazy, mangaRepositoryFactory))
+						.add(MangaPageKeyer())
 						.add(pageFetcherFactory)
 						.add(imageProxyInterceptor)
 						.add(coverRestoreInterceptor)
@@ -147,27 +151,13 @@ interface AppModule {
 		fun provideActivityLifecycleCallbacks(
 			appProtectHelper: AppProtectHelper,
 			activityRecreationHandle: ActivityRecreationHandle,
-			incognitoModeIndicator: IncognitoModeIndicator,
 			acraScreenLogger: AcraScreenLogger,
 		): Set<@JvmSuppressWildcards Application.ActivityLifecycleCallbacks> = arraySetOf(
 			appProtectHelper,
 			activityRecreationHandle,
-			incognitoModeIndicator,
 			acraScreenLogger,
 		)
 
-		@Provides
-		@Singleton
-		fun provideContentCache(
-			application: Application,
-		): ContentCache {
-			return if (application.isLowRamDevice()) {
-				StubContentCache()
-			} else {
-				MemoryContentCache(application)
-			}
-		}
-
 		@Provides
 		@Singleton
 		@LocalStorageChanges

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

@@ -37,7 +37,7 @@ import javax.inject.Provider
 open class BaseApp : Application(), Configuration.Provider {
 
 	@Inject
-	lateinit var databaseObservers: Set<@JvmSuppressWildcards InvalidationTracker.Observer>
+	lateinit var databaseObserversProvider: Provider<Set<@JvmSuppressWildcards InvalidationTracker.Observer>>
 
 	@Inject
 	lateinit var activityLifecycleCallbacks: Set<@JvmSuppressWildcards ActivityLifecycleCallbacks>
@@ -87,7 +87,7 @@ open class BaseApp : Application(), Configuration.Provider {
 		WorkServiceStopHelper(workManagerProvider).setup()
 	}
 
-	override fun attachBaseContext(base: Context?) {
+	override fun attachBaseContext(base: Context) {
 		super.attachBaseContext(base)
 		initAcra {
 			buildConfigClass = BuildConfig::class.java
@@ -123,7 +123,7 @@ open class BaseApp : Application(), Configuration.Provider {
 	@WorkerThread
 	private fun setupDatabaseObservers() {
 		val tracker = database.get().invalidationTracker
-		databaseObservers.forEach {
+		databaseObserversProvider.get().forEach {
 			tracker.addObserver(it)
 		}
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/backup/BackupZipInput.kt

@@ -6,12 +6,14 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.runInterruptible
 import okio.Closeable
 import org.json.JSONArray
+import org.koitharu.kotatsu.core.exceptions.BadBackupFormatException
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
 import java.io.File
 import java.util.EnumSet
+import java.util.zip.ZipException
 import java.util.zip.ZipFile
 
-class BackupZipInput(val file: File) : Closeable {
+class BackupZipInput private constructor(val file: File) : Closeable {
 
 	private val zipFile = ZipFile(file)
 
@@ -41,4 +43,17 @@ class BackupZipInput(val file: File) : Closeable {
 			}
 		}
 	}
+
+	companion object {
+
+		fun from(file: File): BackupZipInput = try {
+			val res = BackupZipInput(file)
+			if (res.zipFile.getEntry("index") == null) {
+				throw BadBackupFormatException(null)
+			}
+			res
+		} catch (e: ZipException) {
+			throw BadBackupFormatException(e)
+		}
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/backup/BackupZipOutput.kt

@@ -39,7 +39,7 @@ suspend fun BackupZipOutput(context: Context): BackupZipOutput = runInterruptibl
 	val filename = buildString {
 		append(context.getString(R.string.app_name).replace(' ', '_').lowercase(Locale.ROOT))
 		append('_')
-		append(LocalDate.now().format(DateTimeFormatter.ofPattern("ddMMyyyy")))
+		append(LocalDate.now().format(DateTimeFormatter.ofPattern("yyyyMMdd")))
 		append(".bk.zip")
 	}
 	BackupZipOutput(File(dir, filename))

app/src/main/kotlin/org/koitharu/kotatsu/core/backup/JsonDeserializer.kt

@@ -54,6 +54,7 @@ class JsonDeserializer(private val json: JSONObject) {
 		page = json.getInt("page"),
 		scroll = json.getDouble("scroll").toFloat(),
 		percent = json.getFloatOrDefault("percent", -1f),
+		chaptersCount = json.getIntOrDefault("chapters", -1),
 		deletedAt = 0L,
 	)
 

app/src/main/kotlin/org/koitharu/kotatsu/core/backup/JsonSerializer.kt

@@ -41,6 +41,7 @@ class JsonSerializer private constructor(private val json: JSONObject) {
 			put("page", e.page)
 			put("scroll", e.scroll)
 			put("percent", e.percent)
+			put("chapters", e.chaptersCount)
 		},
 	)
 

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ContentCache.kt

@@ -1,27 +0,0 @@
-package org.koitharu.kotatsu.core.cache
-
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.model.MangaPage
-import org.koitharu.kotatsu.parsers.model.MangaSource
-
-interface ContentCache {
-
-	val isCachingEnabled: Boolean
-
-	suspend fun getDetails(source: MangaSource, url: String): Manga?
-
-	fun putDetails(source: MangaSource, url: String, details: SafeDeferred<Manga>)
-
-	suspend fun getPages(source: MangaSource, url: String): List<MangaPage>?
-
-	fun putPages(source: MangaSource, url: String, pages: SafeDeferred<List<MangaPage>>)
-
-	suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>?
-
-	fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>)
-
-	data class Key(
-		val source: MangaSource,
-		val url: String,
-	)
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ExpiringLruCache.kt

@@ -2,16 +2,19 @@ package org.koitharu.kotatsu.core.cache
 
 import androidx.collection.LruCache
 import java.util.concurrent.TimeUnit
+import org.koitharu.kotatsu.core.cache.MemoryContentCache.Key as CacheKey
 
 class ExpiringLruCache<T>(
 	val maxSize: Int,
 	private val lifetime: Long,
 	private val timeUnit: TimeUnit,
-) {
+) : Iterable<CacheKey> {
 
-	private val cache = LruCache<ContentCache.Key, ExpiringValue<T>>(maxSize)
+	private val cache = LruCache<CacheKey, ExpiringValue<T>>(maxSize)
 
-	operator fun get(key: ContentCache.Key): T? {
+	override fun iterator(): Iterator<CacheKey> = cache.snapshot().keys.iterator()
+
+	operator fun get(key: CacheKey): T? {
 		val value = cache[key] ?: return null
 		if (value.isExpired) {
 			cache.remove(key)
@@ -19,7 +22,7 @@ class ExpiringLruCache<T>(
 		return value.get()
 	}
 
-	operator fun set(key: ContentCache.Key, value: T) {
+	operator fun set(key: CacheKey, value: T) {
 		cache.put(key, ExpiringValue(value, lifetime, timeUnit))
 	}
 
@@ -30,4 +33,8 @@ class ExpiringLruCache<T>(
 	fun trimToSize(size: Int) {
 		cache.trimToSize(size)
 	}
+
+	fun remove(key: CacheKey) {
+		cache.remove(key)
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/MemoryContentCache.kt

@@ -3,45 +3,57 @@ package org.koitharu.kotatsu.core.cache
 import android.app.Application
 import android.content.ComponentCallbacks2
 import android.content.res.Configuration
+import org.koitharu.kotatsu.core.util.ext.isLowRamDevice
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import java.util.concurrent.TimeUnit
+import javax.inject.Inject
+import javax.inject.Singleton
 
-class MemoryContentCache(application: Application) : ContentCache, ComponentCallbacks2 {
+@Singleton
+class MemoryContentCache @Inject constructor(application: Application) : ComponentCallbacks2 {
+
+	private val isLowRam = application.isLowRamDevice()
+
+	private val detailsCache = ExpiringLruCache<SafeDeferred<Manga>>(if (isLowRam) 1 else 4, 5, TimeUnit.MINUTES)
+	private val pagesCache =
+		ExpiringLruCache<SafeDeferred<List<MangaPage>>>(if (isLowRam) 1 else 4, 10, TimeUnit.MINUTES)
+	private val relatedMangaCache =
+		ExpiringLruCache<SafeDeferred<List<Manga>>>(if (isLowRam) 1 else 3, 10, TimeUnit.MINUTES)
 
 	init {
 		application.registerComponentCallbacks(this)
 	}
 
-	private val detailsCache = ExpiringLruCache<SafeDeferred<Manga>>(4, 5, TimeUnit.MINUTES)
-	private val pagesCache = ExpiringLruCache<SafeDeferred<List<MangaPage>>>(4, 10, TimeUnit.MINUTES)
-	private val relatedMangaCache = ExpiringLruCache<SafeDeferred<List<Manga>>>(4, 10, TimeUnit.MINUTES)
-
-	override val isCachingEnabled: Boolean = true
-
-	override suspend fun getDetails(source: MangaSource, url: String): Manga? {
-		return detailsCache[ContentCache.Key(source, url)]?.awaitOrNull()
+	suspend fun getDetails(source: MangaSource, url: String): Manga? {
+		return detailsCache[Key(source, url)]?.awaitOrNull()
 	}
 
-	override fun putDetails(source: MangaSource, url: String, details: SafeDeferred<Manga>) {
-		detailsCache[ContentCache.Key(source, url)] = details
+	fun putDetails(source: MangaSource, url: String, details: SafeDeferred<Manga>) {
+		detailsCache[Key(source, url)] = details
 	}
 
-	override suspend fun getPages(source: MangaSource, url: String): List<MangaPage>? {
-		return pagesCache[ContentCache.Key(source, url)]?.awaitOrNull()
+	suspend fun getPages(source: MangaSource, url: String): List<MangaPage>? {
+		return pagesCache[Key(source, url)]?.awaitOrNull()
 	}
 
-	override fun putPages(source: MangaSource, url: String, pages: SafeDeferred<List<MangaPage>>) {
-		pagesCache[ContentCache.Key(source, url)] = pages
+	fun putPages(source: MangaSource, url: String, pages: SafeDeferred<List<MangaPage>>) {
+		pagesCache[Key(source, url)] = pages
 	}
 
-	override suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>? {
-		return relatedMangaCache[ContentCache.Key(source, url)]?.awaitOrNull()
+	suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>? {
+		return relatedMangaCache[Key(source, url)]?.awaitOrNull()
 	}
 
-	override fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>) {
-		relatedMangaCache[ContentCache.Key(source, url)] = related
+	fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>) {
+		relatedMangaCache[Key(source, url)] = related
+	}
+
+	fun clear(source: MangaSource) {
+		clearCache(detailsCache, source)
+		clearCache(pagesCache, source)
+		clearCache(relatedMangaCache, source)
 	}
 
 	override fun onConfigurationChanged(newConfig: Configuration) = Unit
@@ -67,4 +79,17 @@ class MemoryContentCache(application: Application) : ContentCache, ComponentCall
 			else -> cache.trimToSize(cache.maxSize / 2)
 		}
 	}
+
+	private fun clearCache(cache: ExpiringLruCache<*>, source: MangaSource) {
+		cache.forEach { key ->
+			if (key.source == source) {
+				cache.remove(key)
+			}
+		}
+	}
+
+	data class Key(
+		val source: MangaSource,
+		val url: String,
+	)
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/StubContentCache.kt

@@ -1,22 +0,0 @@
-package org.koitharu.kotatsu.core.cache
-
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.model.MangaPage
-import org.koitharu.kotatsu.parsers.model.MangaSource
-
-class StubContentCache : ContentCache {
-
-	override val isCachingEnabled: Boolean = false
-
-	override suspend fun getDetails(source: MangaSource, url: String): Manga? = null
-
-	override fun putDetails(source: MangaSource, url: String, details: SafeDeferred<Manga>) = Unit
-
-	override suspend fun getPages(source: MangaSource, url: String): List<MangaPage>? = null
-
-	override fun putPages(source: MangaSource, url: String, pages: SafeDeferred<List<MangaPage>>) = Unit
-
-	override suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>? = null
-
-	override fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>) = Unit
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/db/MangaDatabase.kt

@@ -30,6 +30,8 @@ import org.koitharu.kotatsu.core.db.migrations.Migration14To15
 import org.koitharu.kotatsu.core.db.migrations.Migration15To16
 import org.koitharu.kotatsu.core.db.migrations.Migration16To17
 import org.koitharu.kotatsu.core.db.migrations.Migration17To18
+import org.koitharu.kotatsu.core.db.migrations.Migration18To19
+import org.koitharu.kotatsu.core.db.migrations.Migration19To20
 import org.koitharu.kotatsu.core.db.migrations.Migration1To2
 import org.koitharu.kotatsu.core.db.migrations.Migration2To3
 import org.koitharu.kotatsu.core.db.migrations.Migration3To4
@@ -48,20 +50,22 @@ import org.koitharu.kotatsu.history.data.HistoryDao
 import org.koitharu.kotatsu.history.data.HistoryEntity
 import org.koitharu.kotatsu.scrobbling.common.data.ScrobblingDao
 import org.koitharu.kotatsu.scrobbling.common.data.ScrobblingEntity
+import org.koitharu.kotatsu.stats.data.StatsDao
+import org.koitharu.kotatsu.stats.data.StatsEntity
 import org.koitharu.kotatsu.suggestions.data.SuggestionDao
 import org.koitharu.kotatsu.suggestions.data.SuggestionEntity
 import org.koitharu.kotatsu.tracker.data.TrackEntity
 import org.koitharu.kotatsu.tracker.data.TrackLogEntity
 import org.koitharu.kotatsu.tracker.data.TracksDao
 
-const val DATABASE_VERSION = 18
+const val DATABASE_VERSION = 20
 
 @Database(
 	entities = [
 		MangaEntity::class, TagEntity::class, HistoryEntity::class, MangaTagsEntity::class,
 		FavouriteCategoryEntity::class, FavouriteEntity::class, MangaPrefsEntity::class,
 		TrackEntity::class, TrackLogEntity::class, SuggestionEntity::class, BookmarkEntity::class,
-		ScrobblingEntity::class, MangaSourceEntity::class,
+		ScrobblingEntity::class, MangaSourceEntity::class, StatsEntity::class,
 	],
 	version = DATABASE_VERSION,
 )
@@ -90,6 +94,8 @@ abstract class MangaDatabase : RoomDatabase() {
 	abstract fun getScrobblingDao(): ScrobblingDao
 
 	abstract fun getSourcesDao(): MangaSourcesDao
+
+	abstract fun getStatsDao(): StatsDao
 }
 
 fun getDatabaseMigrations(context: Context): Array<Migration> = arrayOf(
@@ -110,6 +116,8 @@ fun getDatabaseMigrations(context: Context): Array<Migration> = arrayOf(
 	Migration15To16(),
 	Migration16To17(context),
 	Migration17To18(),
+	Migration18To19(),
+	Migration19To20(),
 )
 
 fun MangaDatabase(context: Context): MangaDatabase = Room

app/src/main/kotlin/org/koitharu/kotatsu/core/db/dao/MangaDao.kt

@@ -28,6 +28,9 @@ abstract class MangaDao {
 	@Query("SELECT * FROM manga WHERE source = :source")
 	abstract suspend fun findAllBySource(source: String): List<MangaWithTags>
 
+	@Query("SELECT author FROM manga WHERE author LIKE :query GROUP BY author ORDER BY COUNT(author) DESC LIMIT :limit")
+	abstract suspend fun findAuthors(query: String, limit: Int): List<String>
+
 	@Transaction
 	@Query("SELECT * FROM manga WHERE (title LIKE :query OR alt_title LIKE :query) AND manga_id IN (SELECT manga_id FROM favourites UNION SELECT manga_id FROM history) LIMIT :limit")
 	abstract suspend fun searchByTitle(query: String, limit: Int): List<MangaWithTags>
@@ -37,7 +40,7 @@ abstract class MangaDao {
 	abstract suspend fun searchByTitle(query: String, source: String, limit: Int): List<MangaWithTags>
 
 	@Upsert
-	abstract suspend fun upsert(manga: MangaEntity)
+	protected abstract suspend fun upsert(manga: MangaEntity)
 
 	@Update(onConflict = OnConflictStrategy.IGNORE)
 	abstract suspend fun update(manga: MangaEntity): Int

app/src/main/kotlin/org/koitharu/kotatsu/core/db/dao/MangaSourcesDao.kt

@@ -20,15 +20,15 @@ abstract class MangaSourcesDao {
 	@Query("SELECT * FROM sources ORDER BY sort_key")
 	abstract suspend fun findAll(): List<MangaSourceEntity>
 
-	@Query("SELECT * FROM sources WHERE enabled = 0 ORDER BY sort_key")
-	abstract suspend fun findAllDisabled(): List<MangaSourceEntity>
-
-	@Query("SELECT * FROM sources WHERE enabled = 0")
-	abstract fun observeDisabled(): Flow<List<MangaSourceEntity>>
+	@Query("SELECT source FROM sources WHERE enabled = 1")
+	abstract suspend fun findAllEnabledNames(): List<String>
 
 	@Query("SELECT * FROM sources ORDER BY sort_key")
 	abstract fun observeAll(): Flow<List<MangaSourceEntity>>
 
+	@Query("SELECT enabled FROM sources WHERE source = :source")
+	abstract fun observeIsEnabled(source: String): Flow<Boolean>
+
 	@Query("SELECT IFNULL(MAX(sort_key),0) FROM sources")
 	abstract suspend fun getMaxSortKey(): Int
 

app/src/main/kotlin/org/koitharu/kotatsu/core/db/dao/TrackLogsDao.kt

@@ -1,6 +1,10 @@
 package org.koitharu.kotatsu.core.db.dao
 
-import androidx.room.*
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
 import kotlinx.coroutines.flow.Flow
 import org.koitharu.kotatsu.tracker.data.TrackLogEntity
 import org.koitharu.kotatsu.tracker.data.TrackLogWithManga
@@ -12,18 +16,24 @@ interface TrackLogsDao {
 	@Query("SELECT * FROM track_logs ORDER BY created_at DESC LIMIT :limit OFFSET 0")
 	fun observeAll(limit: Int): Flow<List<TrackLogWithManga>>
 
+	@Query("SELECT COUNT(*) FROM track_logs WHERE unread = 1")
+	fun observeUnreadCount(): Flow<Int>
+
 	@Query("DELETE FROM track_logs")
 	suspend fun clear()
 
+	@Query("UPDATE track_logs SET unread = 0 WHERE id = :id")
+	suspend fun markAsRead(id: Long)
+
 	@Insert(onConflict = OnConflictStrategy.REPLACE)
 	suspend fun insert(entity: TrackLogEntity): Long
 
-	@Query("DELETE FROM track_logs WHERE manga_id = :mangaId")
-	suspend fun removeAll(mangaId: Long)
-
 	@Query("DELETE FROM track_logs WHERE manga_id NOT IN (SELECT manga_id FROM tracks)")
 	suspend fun gc()
 
+	@Query("DELETE FROM track_logs WHERE id IN (SELECT id FROM track_logs ORDER BY created_at DESC LIMIT 0 OFFSET :size)")
+	suspend fun trim(size: Int)
+
 	@Query("SELECT COUNT(*) FROM track_logs")
 	suspend fun count(): Int
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration18To19.kt

@@ -0,0 +1,12 @@
+package org.koitharu.kotatsu.core.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration18To19 : Migration(18, 19) {
+
+	override fun migrate(db: SupportSQLiteDatabase) {
+		db.execSQL("ALTER TABLE history ADD COLUMN `chapters` INTEGER NOT NULL DEFAULT -1")
+		db.execSQL("CREATE TABLE IF NOT EXISTS `stats` (`manga_id` INTEGER NOT NULL, `started_at` INTEGER NOT NULL, `duration` INTEGER NOT NULL, `pages` INTEGER NOT NULL, PRIMARY KEY(`manga_id`, `started_at`), FOREIGN KEY(`manga_id`) REFERENCES `history`(`manga_id`) ON UPDATE NO ACTION ON DELETE CASCADE )")
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration19To20.kt

@@ -0,0 +1,18 @@
+package org.koitharu.kotatsu.core.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration19To20 : Migration(19, 20) {
+
+	override fun migrate(db: SupportSQLiteDatabase) {
+		db.execSQL("CREATE TABLE tracks_bk (manga_id INTEGER NOT NULL, chapters_total INTEGER NOT NULL, last_chapter_id INTEGER NOT NULL, chapters_new INTEGER NOT NULL, last_check INTEGER NOT NULL, last_notified_id INTEGER NOT NULL, PRIMARY KEY(manga_id))")
+		db.execSQL("INSERT INTO tracks_bk SELECT manga_id, chapters_total, last_chapter_id, chapters_new, last_check, last_notified_id FROM tracks")
+		db.execSQL("DROP TABLE tracks")
+		db.execSQL("CREATE TABLE tracks (`manga_id` INTEGER NOT NULL, `last_chapter_id` INTEGER NOT NULL, `chapters_new` INTEGER NOT NULL, `last_check_time` INTEGER NOT NULL, `last_chapter_date` INTEGER NOT NULL, `last_result` INTEGER NOT NULL, PRIMARY KEY(`manga_id`), FOREIGN KEY(`manga_id`) REFERENCES `manga`(`manga_id`) ON UPDATE NO ACTION ON DELETE CASCADE )")
+		db.execSQL("INSERT INTO tracks SELECT manga_id, last_chapter_id, chapters_new, last_check AS last_check_time, 0 AS last_chapter_date, 0 AS last_result FROM tracks_bk")
+		db.execSQL("DROP TABLE tracks_bk")
+
+		db.execSQL("ALTER TABLE track_logs ADD COLUMN `unread` INTEGER NOT NULL DEFAULT 0")
+	}
+}

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

@@ -0,0 +1,5 @@
+package org.koitharu.kotatsu.core.exceptions
+
+import java.io.IOException
+
+class BadBackupFormatException(cause: Throwable?) : IOException(cause)

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

@@ -0,0 +1,10 @@
+package org.koitharu.kotatsu.core.exceptions
+
+import okhttp3.Headers
+import okio.IOException
+import org.koitharu.kotatsu.parsers.model.MangaSource
+
+class CloudFlareBlockedException(
+	val url: String,
+	val source: MangaSource?,
+) : IOException("Blocked by CloudFlare")

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

@@ -0,0 +1,7 @@
+package org.koitharu.kotatsu.core.exceptions
+
+import okio.IOException
+
+class NoDataReceivedException(
+	private val url: String,
+) : IOException("No data has been received from $url")

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

@@ -0,0 +1,8 @@
+package org.koitharu.kotatsu.core.exceptions
+
+import org.koitharu.kotatsu.parsers.model.Manga
+
+class UnsupportedSourceException(
+	message: String?,
+	val manga: Manga?,
+) : IllegalArgumentException(message)

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

@@ -21,7 +21,7 @@ abstract class ErrorObserver(
 	private val onResolved: Consumer<Boolean>?,
 ) : FlowCollector<Throwable> {
 
-	protected val activity = host.context.findActivity()
+	protected open val activity = host.context.findActivity()
 
 	private val lifecycleScope: LifecycleCoroutineScope
 		get() = checkNotNull(fragment?.viewLifecycleScope ?: (activity as? LifecycleOwner)?.lifecycle?.coroutineScope)
@@ -36,7 +36,7 @@ abstract class ErrorObserver(
 	private fun isAlive(): Boolean {
 		return when {
 			fragment != null -> fragment.view != null
-			activity != null -> !activity.isDestroyed
+			activity != null -> activity?.isDestroyed == false
 			else -> true
 		}
 	}

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

@@ -1,33 +1,47 @@
 package org.koitharu.kotatsu.core.exceptions.resolve
 
+import android.content.Context
+import android.widget.Toast
 import androidx.activity.result.ActivityResultCallback
 import androidx.activity.result.ActivityResultLauncher
 import androidx.annotation.StringRes
-import androidx.collection.ArrayMap
+import androidx.collection.MutableScatterMap
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
-import okhttp3.Headers
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import dagger.hilt.android.EntryPointAccessors
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.alternatives.ui.AlternativesActivity
 import org.koitharu.kotatsu.browser.BrowserActivity
 import org.koitharu.kotatsu.browser.cloudflare.CloudFlareActivity
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.core.exceptions.UnsupportedSourceException
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BaseActivity.BaseActivityEntryPoint
 import org.koitharu.kotatsu.core.ui.dialog.ErrorDetailsDialog
 import org.koitharu.kotatsu.core.util.TaggedActivityResult
+import org.koitharu.kotatsu.core.util.ext.findActivity
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
+import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.settings.sources.auth.SourceAuthActivity
+import java.security.cert.CertPathValidatorException
+import javax.net.ssl.SSLException
 import kotlin.coroutines.Continuation
 import kotlin.coroutines.resume
 import kotlin.coroutines.suspendCoroutine
 
 class ExceptionResolver : ActivityResultCallback<TaggedActivityResult> {
 
-	private val continuations = ArrayMap<String, Continuation<Boolean>>(1)
+	private val continuations = MutableScatterMap<String, Continuation<Boolean>>(1)
 	private val activity: FragmentActivity?
 	private val fragment: Fragment?
 	private val sourceAuthContract: ActivityResultLauncher<MangaSource>
-	private val cloudflareContract: ActivityResultLauncher<Pair<String, Headers?>>
+	private val cloudflareContract: ActivityResultLauncher<CloudFlareProtectedException>
+
+	val context: Context?
+		get() = activity ?: fragment?.context
 
 	constructor(activity: FragmentActivity) {
 		this.activity = activity
@@ -52,19 +66,30 @@ class ExceptionResolver : ActivityResultCallback<TaggedActivityResult> {
 	}
 
 	suspend fun resolve(e: Throwable): Boolean = when (e) {
-		is CloudFlareProtectedException -> resolveCF(e.url, e.headers)
+		is CloudFlareProtectedException -> resolveCF(e)
 		is AuthRequiredException -> resolveAuthException(e.source)
+		is SSLException,
+		is CertPathValidatorException -> {
+			showSslErrorDialog()
+			false
+		}
+
 		is NotFoundException -> {
 			openInBrowser(e.url)
 			false
 		}
 
+		is UnsupportedSourceException -> {
+			e.manga?.let { openAlternatives(it) }
+			false
+		}
+
 		else -> false
 	}
 
-	private suspend fun resolveCF(url: String, headers: Headers): Boolean = suspendCoroutine { cont ->
+	private suspend fun resolveCF(e: CloudFlareProtectedException): Boolean = suspendCoroutine { cont ->
 		continuations[CloudFlareActivity.TAG] = cont
-		cloudflareContract.launch(url to headers)
+		cloudflareContract.launch(e)
 	}
 
 	private suspend fun resolveAuthException(source: MangaSource): Boolean = suspendCoroutine { cont ->
@@ -73,8 +98,37 @@ class ExceptionResolver : ActivityResultCallback<TaggedActivityResult> {
 	}
 
 	private fun openInBrowser(url: String) {
-		val context = activity ?: fragment?.activity ?: return
-		context.startActivity(BrowserActivity.newIntent(context, url, null))
+		context?.run {
+			startActivity(BrowserActivity.newIntent(this, url, null, null))
+		}
+	}
+
+	private fun openAlternatives(manga: Manga) {
+		context?.run {
+			startActivity(AlternativesActivity.newIntent(this, manga))
+		}
+	}
+
+	private fun showSslErrorDialog() {
+		val ctx = context ?: return
+		val settings = getAppSettings(ctx)
+		if (settings.isSSLBypassEnabled) {
+			Toast.makeText(ctx, R.string.operation_not_supported, Toast.LENGTH_SHORT).show()
+			return
+		}
+		MaterialAlertDialogBuilder(ctx)
+			.setTitle(R.string.ignore_ssl_errors)
+			.setMessage(R.string.ignore_ssl_errors_summary)
+			.setPositiveButton(R.string.apply) { _, _ ->
+				settings.isSSLBypassEnabled = true
+				Toast.makeText(ctx, R.string.settings_apply_restart_required, Toast.LENGTH_SHORT).show()
+				ctx.findActivity()?.finishAffinity()
+			}.setNegativeButton(android.R.string.cancel, null)
+			.show()
+	}
+
+	private fun getAppSettings(context: Context): AppSettings {
+		return EntryPointAccessors.fromApplication<BaseActivityEntryPoint>(context).settings
 	}
 
 	private fun getFragmentManager() = checkNotNull(fragment?.childFragmentManager ?: activity?.supportFragmentManager)
@@ -86,6 +140,10 @@ class ExceptionResolver : ActivityResultCallback<TaggedActivityResult> {
 			is CloudFlareProtectedException -> R.string.captcha_solve
 			is AuthRequiredException -> R.string.sign_in
 			is NotFoundException -> if (e.url.isNotEmpty()) R.string.open_in_browser else 0
+			is UnsupportedSourceException -> if (e.manga != null) R.string.alternatives else 0
+			is SSLException,
+			is CertPathValidatorException -> R.string.fix
+
 			else -> 0
 		}
 

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

@@ -13,9 +13,8 @@ import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaState
+import org.koitharu.kotatsu.parsers.util.formatSimple
 import org.koitharu.kotatsu.parsers.util.mapToSet
-import java.text.DecimalFormat
-import java.text.DecimalFormatSymbols
 import com.google.android.material.R as materialR
 
 @JvmName("mangaIds")
@@ -119,15 +118,24 @@ val Manga.appUrl: Uri
 		.appendQueryParameter("url", url)
 		.build()
 
-private val chaptersNumberFormat = DecimalFormat("#.#").also { f ->
-	f.decimalFormatSymbols = DecimalFormatSymbols.getInstance().also {
-		it.decimalSeparator = '.'
-	}
+fun MangaChapter.formatNumber(): String? = if (number > 0f) {
+	number.formatSimple()
+} else {
+	null
 }
 
-fun MangaChapter.formatNumber(): String? {
-	if (number <= 0f) {
-		return null
+fun Manga.chaptersCount(): Int {
+	if (chapters.isNullOrEmpty()) {
+		return 0
 	}
-	return chaptersNumberFormat.format(number.toDouble())
+	val counters = MutableObjectIntMap<String?>()
+	var max = 0
+	chapters?.forEach { x ->
+		val c = counters.getOrDefault(x.branch, 0) + 1
+		counters[x.branch] = c
+		if (max < c) {
+			max = c
+		}
+	}
+	return max
 }

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

@@ -4,6 +4,7 @@ import okhttp3.Interceptor
 import okhttp3.Response
 import okhttp3.internal.closeQuietly
 import org.jsoup.Jsoup
+import org.koitharu.kotatsu.core.exceptions.CloudFlareBlockedException
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import java.net.HttpURLConnection.HTTP_FORBIDDEN
@@ -17,14 +18,23 @@ class CloudFlareInterceptor : Interceptor {
 			val content = response.body?.let { response.peekBody(Long.MAX_VALUE) }?.byteStream()?.use {
 				Jsoup.parse(it, Charsets.UTF_8.name(), response.request.url.toString())
 			} ?: return response
-			if (content.getElementById("challenge-error-title") != null) {
+			val hasCaptcha = content.getElementById("challenge-error-title") != null
+			val isBlocked = content.selectFirst("h2[data-translate=\"blocked_why_headline\"]") != null
+			if (hasCaptcha || isBlocked) {
 				val request = response.request
 				response.closeQuietly()
-				throw CloudFlareProtectedException(
-					url = request.url.toString(),
-					source = request.tag(MangaSource::class.java),
-					headers = request.headers,
-				)
+				if (isBlocked) {
+					throw CloudFlareBlockedException(
+						url = request.url.toString(),
+						source = request.tag(MangaSource::class.java),
+					)
+				} else {
+					throw CloudFlareProtectedException(
+						url = request.url.toString(),
+						source = request.tag(MangaSource::class.java),
+						headers = request.headers,
+					)
+				}
 			}
 		}
 		return response

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

@@ -4,15 +4,18 @@ import android.util.Log
 import dagger.Lazy
 import okhttp3.Headers
 import okhttp3.Interceptor
+import okhttp3.Interceptor.Chain
 import okhttp3.Request
 import okhttp3.Response
+import okio.IOException
 import org.koitharu.kotatsu.BuildConfig
+import org.koitharu.kotatsu.core.parser.MangaLoaderContextImpl
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.parsers.network.UserAgents
 import org.koitharu.kotatsu.parsers.util.mergeWith
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import java.net.IDN
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -20,9 +23,10 @@ import javax.inject.Singleton
 @Singleton
 class CommonHeadersInterceptor @Inject constructor(
 	private val mangaRepositoryFactoryLazy: Lazy<MangaRepository.Factory>,
+	private val mangaLoaderContextLazy: Lazy<MangaLoaderContextImpl>,
 ) : Interceptor {
 
-	override fun intercept(chain: Interceptor.Chain): Response {
+	override fun intercept(chain: Chain): Response {
 		val request = chain.request()
 		val source = request.tag(MangaSource::class.java)
 		val repository = if (source != null) {
@@ -38,14 +42,14 @@ class CommonHeadersInterceptor @Inject constructor(
 			headersBuilder.mergeWith(it, replaceExisting = false)
 		}
 		if (headersBuilder[CommonHeaders.USER_AGENT] == null) {
-			headersBuilder[CommonHeaders.USER_AGENT] = UserAgents.CHROME_MOBILE
+			headersBuilder[CommonHeaders.USER_AGENT] = mangaLoaderContextLazy.get().getDefaultUserAgent()
 		}
 		if (headersBuilder[CommonHeaders.REFERER] == null && repository != null) {
 			val idn = IDN.toASCII(repository.domain)
 			headersBuilder.trySet(CommonHeaders.REFERER, "https://$idn/")
 		}
 		val newRequest = request.newBuilder().headers(headersBuilder.build()).build()
-		return repository?.intercept(ProxyChain(chain, newRequest)) ?: chain.proceed(newRequest)
+		return repository?.interceptSafe(ProxyChain(chain, newRequest)) ?: chain.proceed(newRequest)
 	}
 
 	private fun Headers.Builder.trySet(name: String, value: String) = try {
@@ -54,10 +58,21 @@ class CommonHeadersInterceptor @Inject constructor(
 		e.printStackTraceDebug()
 	}
 
+	private fun Interceptor.interceptSafe(chain: Chain): Response = runCatchingCancellable {
+		intercept(chain)
+	}.getOrElse { e ->
+		if (e is IOException) {
+			throw e
+		} else {
+			// only IOException can be safely thrown from an Interceptor
+			throw IOException("Error in interceptor: ${e.message}", e)
+		}
+	}
+
 	private class ProxyChain(
-		private val delegate: Interceptor.Chain,
+		private val delegate: Chain,
 		private val request: Request,
-	) : Interceptor.Chain by delegate {
+	) : Chain by delegate {
 
 		override fun request(): Request = request
 	}

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

@@ -83,6 +83,11 @@ class DoHManager(
 					tryGetByIp("2a10:50c0::2:ff"),
 				),
 			).build()
+
+		DoHProvider.ZERO_MS -> DnsOverHttps.Builder().client(bootstrapClient)
+			.url("https://0ms.dev/dns-query".toHttpUrl())
+			.resolvePublicAddresses(true)
+			.build()
 	}
 
 	private fun tryGetByIp(ip: String): InetAddress? = try {

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

@@ -2,5 +2,5 @@ package org.koitharu.kotatsu.core.network
 
 enum class DoHProvider {
 
-	NONE, GOOGLE, CLOUDFLARE, ADGUARD
-}
+	NONE, GOOGLE, CLOUDFLARE, ADGUARD, ZERO_MS
+}

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

@@ -1,106 +0,0 @@
-package org.koitharu.kotatsu.core.network
-
-import android.util.Log
-import androidx.collection.ArraySet
-import coil.intercept.Interceptor
-import coil.request.ErrorResult
-import coil.request.ImageResult
-import coil.request.SuccessResult
-import coil.size.Dimension
-import coil.size.isOriginal
-import okhttp3.HttpUrl
-import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import okhttp3.Response
-import org.koitharu.kotatsu.BuildConfig
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.util.ext.ensureSuccess
-import org.koitharu.kotatsu.core.util.ext.isHttpOrHttps
-import org.koitharu.kotatsu.parsers.util.await
-import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
-import java.util.Collections
-import javax.inject.Inject
-import javax.inject.Singleton
-
-@Singleton
-class ImageProxyInterceptor @Inject constructor(
-	private val settings: AppSettings,
-) : Interceptor {
-
-	private val blacklist = Collections.synchronizedSet(ArraySet<String>())
-
-	override suspend fun intercept(chain: Interceptor.Chain): ImageResult {
-		val request = chain.request
-		if (!settings.isImagesProxyEnabled) {
-			return chain.proceed(request)
-		}
-		val url: HttpUrl? = when (val data = request.data) {
-			is HttpUrl -> data
-			is String -> data.toHttpUrlOrNull()
-			else -> null
-		}
-		if (url == null || !url.isHttpOrHttps || url.host in blacklist) {
-			return chain.proceed(request)
-		}
-		val newUrl = HttpUrl.Builder()
-			.scheme("https")
-			.host("wsrv.nl")
-			.addQueryParameter("url", url.toString())
-			.addQueryParameter("we", null)
-		val size = request.sizeResolver.size()
-		if (!size.isOriginal) {
-			newUrl.addQueryParameter("crop", "cover")
-			(size.height as? Dimension.Pixels)?.let { newUrl.addQueryParameter("h", it.toString()) }
-			(size.width as? Dimension.Pixels)?.let { newUrl.addQueryParameter("w", it.toString()) }
-		}
-
-		val newRequest = request.newBuilder()
-			.data(newUrl.build())
-			.build()
-		val result = chain.proceed(newRequest)
-		return if (result is SuccessResult) {
-			result
-		} else {
-			logDebug((result as? ErrorResult)?.throwable)
-			chain.proceed(request).also {
-				if (it is SuccessResult) {
-					blacklist.add(url.host)
-				}
-			}
-		}
-	}
-
-	suspend fun interceptPageRequest(request: Request, okHttp: OkHttpClient): Response {
-		if (!settings.isImagesProxyEnabled) {
-			return okHttp.newCall(request).await()
-		}
-		val sourceUrl = request.url
-		val targetUrl = HttpUrl.Builder()
-			.scheme("https")
-			.host("wsrv.nl")
-			.addQueryParameter("url", sourceUrl.toString())
-			.addQueryParameter("we", null)
-		val newRequest = request.newBuilder()
-			.url(targetUrl.build())
-			.build()
-		return runCatchingCancellable {
-			okHttp.doCall(newRequest)
-		}.recover {
-			logDebug(it)
-			okHttp.doCall(request).also {
-				blacklist.add(sourceUrl.host)
-			}
-		}.getOrThrow()
-	}
-
-	private suspend fun OkHttpClient.doCall(request: Request): Response {
-		return newCall(request).await().ensureSuccess()
-	}
-
-	private fun logDebug(e: Throwable?) {
-		if (BuildConfig.DEBUG) {
-			Log.w("ImageProxy", e.toString())
-		}
-	}
-}

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

@@ -15,9 +15,13 @@ import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.network.cookies.AndroidCookieJar
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
 import org.koitharu.kotatsu.core.network.cookies.PreferencesCookieJar
+import org.koitharu.kotatsu.core.network.imageproxy.ImageProxyInterceptor
+import org.koitharu.kotatsu.core.network.imageproxy.RealImageProxyInterceptor
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.util.ext.assertNotInMainThread
 import org.koitharu.kotatsu.local.data.LocalStorageManager
 import java.util.concurrent.TimeUnit
+import javax.inject.Provider
 import javax.inject.Singleton
 
 @Module
@@ -27,6 +31,9 @@ interface NetworkModule {
 	@Binds
 	fun bindCookieJar(androidCookieJar: MutableCookieJar): CookieJar
 
+	@Binds
+	fun bindImageProxyInterceptor(impl: RealImageProxyInterceptor): ImageProxyInterceptor
+
 	companion object {
 
 		@Provides
@@ -50,10 +57,12 @@ interface NetworkModule {
 		@Singleton
 		@BaseHttpClient
 		fun provideBaseHttpClient(
+			@ApplicationContext contextProvider: Provider<Context>,
 			cache: Cache,
 			cookieJar: CookieJar,
 			settings: AppSettings,
 		): OkHttpClient = OkHttpClient.Builder().apply {
+			assertNotInMainThread()
 			connectTimeout(20, TimeUnit.SECONDS)
 			readTimeout(60, TimeUnit.SECONDS)
 			writeTimeout(20, TimeUnit.SECONDS)
@@ -62,7 +71,9 @@ interface NetworkModule {
 			proxyAuthenticator(ProxyAuthenticator(settings))
 			dns(DoHManager(cache, settings))
 			if (settings.isSSLBypassEnabled) {
-				bypassSSLErrors()
+				disableCertificateVerification()
+			} else {
+				installExtraCertsificates(contextProvider.get())
 			}
 			cache(cache)
 			addInterceptor(GZipInterceptor())

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

@@ -1,30 +0,0 @@
-package org.koitharu.kotatsu.core.network
-
-import android.annotation.SuppressLint
-import okhttp3.OkHttpClient
-import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
-import java.security.SecureRandom
-import java.security.cert.X509Certificate
-import javax.net.ssl.SSLContext
-import javax.net.ssl.SSLSocketFactory
-import javax.net.ssl.X509TrustManager
-
-@SuppressLint("CustomX509TrustManager")
-fun OkHttpClient.Builder.bypassSSLErrors() = also { builder ->
-	runCatching {
-		val trustAllCerts = object : X509TrustManager {
-			override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String) = Unit
-
-			override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String) = Unit
-
-			override fun getAcceptedIssuers(): Array<X509Certificate> = emptyArray()
-		}
-		val sslContext = SSLContext.getInstance("SSL")
-		sslContext.init(null, arrayOf(trustAllCerts), SecureRandom())
-		val sslSocketFactory: SSLSocketFactory = sslContext.socketFactory
-		builder.sslSocketFactory(sslSocketFactory, trustAllCerts)
-		builder.hostnameVerifier { _, _ -> true }
-	}.onFailure {
-		it.printStackTraceDebug()
-	}
-}

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

@@ -0,0 +1,63 @@
+package org.koitharu.kotatsu.core.network
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.res.AssetManager
+import android.util.Log
+import okhttp3.OkHttpClient
+import okhttp3.tls.HandshakeCertificates
+import org.koitharu.kotatsu.BuildConfig
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import java.security.SecureRandom
+import java.security.cert.CertificateFactory
+import java.security.cert.X509Certificate
+import javax.net.ssl.SSLContext
+import javax.net.ssl.SSLSocketFactory
+import javax.net.ssl.X509TrustManager
+
+@SuppressLint("CustomX509TrustManager")
+fun OkHttpClient.Builder.disableCertificateVerification() = also { builder ->
+	runCatching {
+		val trustAllCerts = object : X509TrustManager {
+			override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String) = Unit
+
+			override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String) = Unit
+
+			override fun getAcceptedIssuers(): Array<X509Certificate> = emptyArray()
+		}
+		val sslContext = SSLContext.getInstance("SSL")
+		sslContext.init(null, arrayOf(trustAllCerts), SecureRandom())
+		val sslSocketFactory: SSLSocketFactory = sslContext.socketFactory
+		builder.sslSocketFactory(sslSocketFactory, trustAllCerts)
+		builder.hostnameVerifier { _, _ -> true }
+	}.onFailure {
+		it.printStackTraceDebug()
+	}
+}
+
+fun OkHttpClient.Builder.installExtraCertsificates(context: Context) = also { builder ->
+	val certificatesBuilder = HandshakeCertificates.Builder()
+		.addPlatformTrustedCertificates()
+	val assets = context.assets.list("").orEmpty()
+	for (path in assets) {
+		if (path.endsWith(".pem")) {
+			val cert = loadCert(context, path) ?: continue
+			certificatesBuilder.addTrustedCertificate(cert)
+		}
+	}
+	val certificates = certificatesBuilder.build()
+	builder.sslSocketFactory(certificates.sslSocketFactory(), certificates.trustManager)
+}
+
+private fun loadCert(context: Context, path: String): X509Certificate? = runCatching {
+	val cf = CertificateFactory.getInstance("X.509")
+	context.assets.open(path, AssetManager.ACCESS_STREAMING).use {
+		cf.generateCertificate(it)
+	} as X509Certificate
+}.onFailure { e ->
+	e.printStackTraceDebug()
+}.onSuccess {
+	if (BuildConfig.DEBUG) {
+		Log.i("ExtraCerts", "Loaded cert $path")
+	}
+}.getOrNull()

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

@@ -0,0 +1,87 @@
+package org.koitharu.kotatsu.core.network.imageproxy
+
+import android.util.Log
+import androidx.collection.ArraySet
+import coil.intercept.Interceptor
+import coil.network.HttpException
+import coil.request.ErrorResult
+import coil.request.ImageRequest
+import coil.request.ImageResult
+import coil.request.SuccessResult
+import okhttp3.HttpUrl
+import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.HttpStatusException
+import org.koitharu.kotatsu.BuildConfig
+import org.koitharu.kotatsu.core.exceptions.CloudFlareBlockedException
+import org.koitharu.kotatsu.core.util.ext.ensureSuccess
+import org.koitharu.kotatsu.core.util.ext.isHttpOrHttps
+import org.koitharu.kotatsu.parsers.util.await
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import java.net.HttpURLConnection
+import java.util.Collections
+
+abstract class BaseImageProxyInterceptor : ImageProxyInterceptor {
+
+	private val blacklist = Collections.synchronizedSet(ArraySet<String>())
+
+	final override suspend fun intercept(chain: Interceptor.Chain): ImageResult {
+		val request = chain.request
+		val url: HttpUrl? = when (val data = request.data) {
+			is HttpUrl -> data
+			is String -> data.toHttpUrlOrNull()
+			else -> null
+		}
+		if (url == null || !url.isHttpOrHttps || url.host in blacklist) {
+			return chain.proceed(request)
+		}
+		val newRequest = onInterceptImageRequest(request, url)
+		return when (val result = chain.proceed(newRequest)) {
+			is SuccessResult -> result
+			is ErrorResult -> {
+				logDebug(result.throwable, newRequest.data)
+				chain.proceed(request).also {
+					if (it is SuccessResult && result.throwable.isBlockedByServer()) {
+						blacklist.add(url.host)
+					}
+				}
+			}
+		}
+	}
+
+	final override suspend fun interceptPageRequest(request: Request, okHttp: OkHttpClient): Response {
+		val newRequest = onInterceptPageRequest(request)
+		return runCatchingCancellable {
+			okHttp.doCall(newRequest)
+		}.recover { error ->
+			logDebug(error, newRequest.url)
+			okHttp.doCall(request).also {
+				if (error.isBlockedByServer()) {
+					blacklist.add(request.url.host)
+				}
+			}
+		}.getOrThrow()
+	}
+
+	protected abstract suspend fun onInterceptImageRequest(request: ImageRequest, url: HttpUrl): ImageRequest
+
+	protected abstract suspend fun onInterceptPageRequest(request: Request): Request
+
+	private suspend fun OkHttpClient.doCall(request: Request): Response {
+		return newCall(request).await().ensureSuccess()
+	}
+
+	private fun logDebug(e: Throwable, url: Any) {
+		if (BuildConfig.DEBUG) {
+			Log.w("ImageProxy", "${e.message}: $url", e)
+		}
+	}
+
+	private fun Throwable.isBlockedByServer(): Boolean {
+		return this is CloudFlareBlockedException
+			|| (this is HttpException && response.code == HttpURLConnection.HTTP_FORBIDDEN)
+			|| (this is HttpStatusException && statusCode == HttpURLConnection.HTTP_FORBIDDEN)
+	}
+}

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

@@ -0,0 +1,11 @@
+package org.koitharu.kotatsu.core.network.imageproxy
+
+import coil.intercept.Interceptor
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+
+interface ImageProxyInterceptor : Interceptor {
+
+	suspend fun interceptPageRequest(request: Request, okHttp: OkHttpClient): Response
+}

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

@@ -0,0 +1,42 @@
+package org.koitharu.kotatsu.core.network.imageproxy
+
+import coil.intercept.Interceptor
+import coil.request.ImageResult
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.plus
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.observeAsStateFlow
+import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
+import org.koitharu.kotatsu.parsers.util.await
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class RealImageProxyInterceptor @Inject constructor(
+	private val settings: AppSettings,
+) : ImageProxyInterceptor {
+
+	private val delegate = settings.observeAsStateFlow(
+		scope = processLifecycleScope + Dispatchers.Default,
+		key = AppSettings.KEY_IMAGES_PROXY,
+		valueProducer = { createDelegate() },
+	)
+
+	override suspend fun intercept(chain: Interceptor.Chain): ImageResult {
+		return delegate.value?.intercept(chain) ?: chain.proceed(chain.request)
+	}
+
+	override suspend fun interceptPageRequest(request: Request, okHttp: OkHttpClient): Response {
+		return delegate.value?.interceptPageRequest(request, okHttp) ?: okHttp.newCall(request).await()
+	}
+
+	private fun createDelegate(): ImageProxyInterceptor? = when (val proxy = settings.imagesProxy) {
+		-1 -> null
+		0 -> WsrvNlProxyInterceptor()
+		1 -> ZeroMsProxyInterceptor()
+		else -> error("Unsupported images proxy $proxy")
+	}
+}

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

@@ -0,0 +1,40 @@
+package org.koitharu.kotatsu.core.network.imageproxy
+
+import coil.request.ImageRequest
+import coil.size.Dimension
+import coil.size.isOriginal
+import okhttp3.HttpUrl
+import okhttp3.Request
+
+class WsrvNlProxyInterceptor : BaseImageProxyInterceptor() {
+
+	override suspend fun onInterceptImageRequest(request: ImageRequest, url: HttpUrl): ImageRequest {
+		val newUrl = HttpUrl.Builder()
+			.scheme("https")
+			.host("wsrv.nl")
+			.addQueryParameter("url", url.toString())
+			.addQueryParameter("we", null)
+		val size = request.sizeResolver.size()
+		if (!size.isOriginal) {
+			newUrl.addQueryParameter("crop", "cover")
+			(size.height as? Dimension.Pixels)?.let { newUrl.addQueryParameter("h", it.toString()) }
+			(size.width as? Dimension.Pixels)?.let { newUrl.addQueryParameter("w", it.toString()) }
+		}
+
+		return request.newBuilder()
+			.data(newUrl.build())
+			.build()
+	}
+
+	override suspend fun onInterceptPageRequest(request: Request): Request {
+		val sourceUrl = request.url
+		val targetUrl = HttpUrl.Builder()
+			.scheme("https")
+			.host("wsrv.nl")
+			.addQueryParameter("url", sourceUrl.toString())
+			.addQueryParameter("we", null)
+		return request.newBuilder()
+			.url(targetUrl.build())
+			.build()
+	}
+}

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

@@ -0,0 +1,26 @@
+package org.koitharu.kotatsu.core.network.imageproxy
+
+import coil.request.ImageRequest
+import okhttp3.HttpUrl
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.Request
+
+class ZeroMsProxyInterceptor : BaseImageProxyInterceptor() {
+
+	override suspend fun onInterceptImageRequest(request: ImageRequest, url: HttpUrl): ImageRequest {
+		if (url.host == "x.0ms.dev" || url.host == "0ms.dev") {
+			return request
+		}
+		val newUrl = ("https://x.0ms.dev/q70/$url").toHttpUrl()
+		return request.newBuilder()
+			.data(newUrl)
+			.build()
+	}
+
+	override suspend fun onInterceptPageRequest(request: Request): Request {
+		val newUrl = ("https://x.0ms.dev/q70/${request.url}").toHttpUrl()
+		return request.newBuilder()
+			.url(newUrl)
+			.build()
+	}
+}

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

@@ -18,6 +18,7 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.db.TABLE_HISTORY
 import org.koitharu.kotatsu.core.parser.MangaDataRepository
@@ -31,6 +32,7 @@ import org.koitharu.kotatsu.core.util.ext.source
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.mapNotNullToSet
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import org.koitharu.kotatsu.search.ui.MangaListActivity
@@ -90,6 +92,14 @@ class AppShortcutManager @Inject constructor(
 		false
 	}
 
+	fun getMangaShortcuts(): Set<Long> {
+		val shortcuts = ShortcutManagerCompat.getShortcuts(
+			context,
+			ShortcutManagerCompat.FLAG_MATCH_CACHED or ShortcutManagerCompat.FLAG_MATCH_PINNED or ShortcutManagerCompat.FLAG_MATCH_DYNAMIC,
+		)
+		return shortcuts.mapNotNullToSet { it.id.toLongOrNull() }
+	}
+
 	@VisibleForTesting
 	suspend fun await(): Boolean {
 		return shortcutsUpdateJob?.join() != null
@@ -150,7 +160,7 @@ class AppShortcutManager @Inject constructor(
 			.build()
 	}
 
-	private suspend fun buildShortcutInfo(source: MangaSource): ShortcutInfoCompat {
+	private suspend fun buildShortcutInfo(source: MangaSource): ShortcutInfoCompat = withContext(Dispatchers.Default) {
 		val icon = runCatchingCancellable {
 			coil.execute(
 				ImageRequest.Builder(context)
@@ -163,7 +173,7 @@ class AppShortcutManager @Inject constructor(
 			onSuccess = { IconCompat.createWithAdaptiveBitmap(it) },
 			onFailure = { IconCompat.createWithResource(context, R.drawable.ic_shortcut_default) },
 		)
-		return ShortcutInfoCompat.Builder(context, source.name)
+		ShortcutInfoCompat.Builder(context, source.name)
 			.setShortLabel(source.title)
 			.setLongLabel(source.title)
 			.setIcon(icon)

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

@@ -5,13 +5,15 @@ import android.net.ConnectivityManager.NetworkCallback
 import android.net.Network
 import android.net.NetworkCapabilities
 import android.net.NetworkRequest
+import android.os.Build
 import kotlinx.coroutines.flow.first
+import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.MediatorStateFlow
-import org.koitharu.kotatsu.core.util.ext.isOnline
 
 class NetworkState(
 	private val connectivityManager: ConnectivityManager,
-) : MediatorStateFlow<Boolean>(connectivityManager.isOnline()) {
+	private val settings: AppSettings,
+) : MediatorStateFlow<Boolean>(connectivityManager.isOnline(settings)) {
 
 	private val callback = NetworkCallbackImpl()
 
@@ -19,7 +21,10 @@ class NetworkState(
 	override fun onActive() {
 		invalidate()
 		val request = NetworkRequest.Builder()
-			.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+			.addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+			.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
+			.addTransportType(NetworkCapabilities.TRANSPORT_ETHERNET)
+			.addTransportType(NetworkCapabilities.TRANSPORT_VPN)
 			.build()
 		connectivityManager.registerNetworkCallback(request, callback)
 	}
@@ -37,7 +42,7 @@ class NetworkState(
 	}
 
 	private fun invalidate() {
-		publishValue(connectivityManager.isOnline())
+		publishValue(connectivityManager.isOnline(settings))
 	}
 
 	private inner class NetworkCallbackImpl : NetworkCallback() {
@@ -48,4 +53,27 @@ class NetworkState(
 
 		override fun onUnavailable() = invalidate()
 	}
+
+	private companion object {
+
+		fun ConnectivityManager.isOnline(settings: AppSettings): Boolean {
+			if (settings.isOfflineCheckDisabled) {
+				return true
+			}
+			return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+				activeNetwork?.let { isOnline(it) } ?: false
+			} else {
+				@Suppress("DEPRECATION")
+				activeNetworkInfo?.isConnected == true
+			}
+		}
+
+		private fun ConnectivityManager.isOnline(network: Network): Boolean {
+			val capabilities = getNetworkCapabilities(network) ?: return false
+			return capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)
+				|| capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)
+				|| capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)
+				|| capabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN)
+		}
+	}
 }

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

@@ -0,0 +1,43 @@
+package org.koitharu.kotatsu.core.parser
+
+import android.graphics.Canvas
+import org.koitharu.kotatsu.parsers.bitmap.Bitmap
+import org.koitharu.kotatsu.parsers.bitmap.Rect
+import java.io.OutputStream
+import android.graphics.Bitmap as AndroidBitmap
+import android.graphics.Rect as AndroidRect
+
+class BitmapWrapper private constructor(
+	private val androidBitmap: AndroidBitmap,
+) : Bitmap {
+
+	private val canvas by lazy { Canvas(androidBitmap) } // is not always used, so initialized lazily
+
+	override val height: Int
+		get() = androidBitmap.height
+
+	override val width: Int
+		get() = androidBitmap.width
+
+	override fun drawBitmap(sourceBitmap: Bitmap, src: Rect, dst: Rect) {
+		val androidSourceBitmap = (sourceBitmap as BitmapWrapper).androidBitmap
+		canvas.drawBitmap(androidSourceBitmap, src.toAndroidRect(), dst.toAndroidRect(), null)
+	}
+
+	fun compressTo(output: OutputStream) {
+		androidBitmap.compress(AndroidBitmap.CompressFormat.PNG, 100, output)
+	}
+
+	companion object {
+
+		fun create(width: Int, height: Int): Bitmap = BitmapWrapper(
+			AndroidBitmap.createBitmap(width, height, AndroidBitmap.Config.ARGB_8888),
+		)
+
+		fun create(bitmap: AndroidBitmap): Bitmap = BitmapWrapper(
+			if (bitmap.isMutable) bitmap else bitmap.copy(AndroidBitmap.Config.ARGB_8888, true),
+		)
+
+		private fun Rect.toAndroidRect() = AndroidRect(left, top, right, bottom)
+	}
+}

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

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.core.parser
 
+import org.koitharu.kotatsu.core.exceptions.UnsupportedSourceException
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.MangaParser
 import org.koitharu.kotatsu.parsers.config.ConfigKey
@@ -18,24 +19,20 @@ import java.util.EnumSet
 class DummyParser(context: MangaLoaderContext) : MangaParser(context, MangaSource.DUMMY) {
 
 	override val configKeyDomain: ConfigKey.Domain
-		get() = ConfigKey.Domain("")
+		get() = ConfigKey.Domain("localhost")
 
 	override val availableSortOrders: Set<SortOrder>
 		get() = EnumSet.allOf(SortOrder::class.java)
 
-	override suspend fun getDetails(manga: Manga): Manga {
-		TODO("Not yet implemented")
-	}
+	override suspend fun getDetails(manga: Manga): Manga = stub(manga)
 
-	override suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga> {
-		TODO("Not yet implemented")
-	}
+	override suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga> = stub(null)
 
-	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
-		TODO("Not yet implemented")
-	}
+	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> = stub(null)
 
-	override suspend fun getAvailableTags(): Set<MangaTag> {
-		TODO("Not yet implemented")
+	override suspend fun getAvailableTags(): Set<MangaTag> = stub(null)
+
+	private fun stub(manga: Manga?): Nothing {
+		throw UnsupportedSourceException("Usage of Dummy parser", manga)
 	}
 }

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

@@ -2,24 +2,38 @@ package org.koitharu.kotatsu.core.parser
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.graphics.BitmapFactory
 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.withContext
+import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.OkHttpClient
+import okhttp3.Response
+import okhttp3.ResponseBody.Companion.asResponseBody
+import okio.Buffer
 import org.koitharu.kotatsu.core.network.MangaHttpClient
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
 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.requireBody
+import org.koitharu.kotatsu.core.util.ext.sanitizeHeaderValue
 import org.koitharu.kotatsu.core.util.ext.toList
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
+import org.koitharu.kotatsu.parsers.bitmap.Bitmap
 import org.koitharu.kotatsu.parsers.config.MangaSourceConfig
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.network.UserAgents
 import java.lang.ref.WeakReference
 import java.util.Locale
 import javax.inject.Inject
 import javax.inject.Singleton
+import kotlin.coroutines.EmptyCoroutineContext
 import kotlin.coroutines.resume
 import kotlin.coroutines.suspendCoroutine
 
@@ -31,13 +45,11 @@ class MangaLoaderContextImpl @Inject constructor(
 ) : MangaLoaderContext() {
 
 	private var webViewCached: WeakReference<WebView>? = null
+	private val webViewUserAgent by lazy { obtainWebViewUserAgent() }
 
 	@SuppressLint("SetJavaScriptEnabled")
-	override suspend fun evaluateJs(script: String): String? = withContext(Dispatchers.Main) {
-		val webView = webViewCached?.get() ?: WebView(androidContext).also {
-			it.settings.javaScriptEnabled = true
-			webViewCached = WeakReference(it)
-		}
+	override suspend fun evaluateJs(script: String): String? = withContext(Dispatchers.Main.immediate) {
+		val webView = obtainWebView()
 		suspendCoroutine { cont ->
 			webView.evaluateJavascript(script) { result ->
 				cont.resume(result?.takeUnless { it == "null" })
@@ -45,6 +57,8 @@ class MangaLoaderContextImpl @Inject constructor(
 		}
 	}
 
+	override fun getDefaultUserAgent(): String = webViewUserAgent
+
 	override fun getConfig(source: MangaSource): MangaSourceConfig {
 		return SourceSettings(androidContext, source)
 	}
@@ -60,4 +74,51 @@ class MangaLoaderContextImpl @Inject constructor(
 	override fun getPreferredLocales(): List<Locale> {
 		return LocaleListCompat.getAdjustedDefault().toList()
 	}
+
+	override fun redrawImageResponse(response: Response, redraw: (image: Bitmap) -> Bitmap): Response {
+		val image = response.requireBody().byteStream()
+
+		val opts = BitmapFactory.Options()
+		opts.inMutable = true
+		val bitmap = BitmapFactory.decodeStream(image, null, opts) ?: error("Cannot decode bitmap")
+		val result = redraw(BitmapWrapper.create(bitmap)) as BitmapWrapper
+
+		val body = Buffer().also {
+			result.compressTo(it.outputStream())
+		}.asResponseBody("image/jpeg".toMediaType())
+
+		return response.newBuilder()
+			.body(body)
+			.build()
+	}
+
+	override fun createBitmap(width: Int, height: Int): Bitmap {
+		return BitmapWrapper.create(width, height)
+	}
+
+	@MainThread
+	private fun obtainWebView(): WebView {
+		return 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/MangaRepository.kt

@@ -1,7 +1,7 @@
 package org.koitharu.kotatsu.core.parser
 
 import androidx.annotation.AnyThread
-import org.koitharu.kotatsu.core.cache.ContentCache
+import org.koitharu.kotatsu.core.cache.MemoryContentCache
 import org.koitharu.kotatsu.core.network.MirrorSwitchInterceptor
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
@@ -57,7 +57,7 @@ interface MangaRepository {
 	class Factory @Inject constructor(
 		private val localMangaRepository: LocalMangaRepository,
 		private val loaderContext: MangaLoaderContext,
-		private val contentCache: ContentCache,
+		private val contentCache: MemoryContentCache,
 		private val mirrorSwitchInterceptor: MirrorSwitchInterceptor,
 	) {
 

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

@@ -13,15 +13,15 @@ import okhttp3.Headers
 import okhttp3.Interceptor
 import okhttp3.Response
 import org.koitharu.kotatsu.BuildConfig
-import org.koitharu.kotatsu.core.cache.ContentCache
+import org.koitharu.kotatsu.core.cache.MemoryContentCache
 import org.koitharu.kotatsu.core.cache.SafeDeferred
 import org.koitharu.kotatsu.core.network.MirrorSwitchInterceptor
 import org.koitharu.kotatsu.core.prefs.SourceSettings
+import org.koitharu.kotatsu.core.util.MultiMutex
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
 import org.koitharu.kotatsu.parsers.MangaParser
 import org.koitharu.kotatsu.parsers.MangaParserAuthProvider
 import org.koitharu.kotatsu.parsers.config.ConfigKey
-import org.koitharu.kotatsu.parsers.exception.ParseException
 import org.koitharu.kotatsu.parsers.model.ContentRating
 import org.koitharu.kotatsu.parsers.model.Favicons
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -38,10 +38,14 @@ import java.util.Locale
 
 class RemoteMangaRepository(
 	private val parser: MangaParser,
-	private val cache: ContentCache,
+	private val cache: MemoryContentCache,
 	private val mirrorSwitchInterceptor: MirrorSwitchInterceptor,
 ) : MangaRepository, Interceptor {
 
+	private val detailsMutex = MultiMutex<Long>()
+	private val relatedMangaMutex = MultiMutex<Long>()
+	private val pagesMutex = MultiMutex<Long>()
+
 	override val source: MangaSource
 		get() = parser.source
 
@@ -97,7 +101,7 @@ class RemoteMangaRepository(
 
 	override suspend fun getDetails(manga: Manga): Manga = getDetails(manga, CachePolicy.ENABLED)
 
-	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
+	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> = pagesMutex.withLock(chapter.id) {
 		cache.getPages(source, chapter.url)?.let { return it }
 		val pages = asyncSafe {
 			mirrorSwitchInterceptor.withMirrorSwitching {
@@ -105,8 +109,8 @@ class RemoteMangaRepository(
 			}
 		}
 		cache.putPages(source, chapter.url, pages)
-		return pages.await()
-	}
+		pages
+	}.await()
 
 	override suspend fun getPageUrl(page: MangaPage): String = mirrorSwitchInterceptor.withMirrorSwitching {
 		parser.getPageUrl(page)
@@ -124,16 +128,16 @@ class RemoteMangaRepository(
 		parser.getFavicons()
 	}
 
-	override suspend fun getRelated(seed: Manga): List<Manga> {
+	override suspend fun getRelated(seed: Manga): List<Manga> = relatedMangaMutex.withLock(seed.id) {
 		cache.getRelatedManga(source, seed.url)?.let { return it }
 		val related = asyncSafe {
 			parser.getRelatedManga(seed).filterNot { it.id == seed.id }
 		}
 		cache.putRelatedManga(source, seed.url, related)
-		return related.await()
-	}
+		related
+	}.await()
 
-	suspend fun getDetails(manga: Manga, cachePolicy: CachePolicy): Manga {
+	suspend fun getDetails(manga: Manga, cachePolicy: CachePolicy): Manga = detailsMutex.withLock(manga.id) {
 		if (cachePolicy.readEnabled) {
 			cache.getDetails(source, manga.url)?.let { return it }
 		}
@@ -145,8 +149,8 @@ class RemoteMangaRepository(
 		if (cachePolicy.writeEnabled) {
 			cache.putDetails(source, manga.url, details)
 		}
-		return details.await()
-	}
+		details
+	}.await()
 
 	suspend fun peekDetails(manga: Manga): Manga? {
 		return cache.getDetails(source, manga.url)
@@ -171,7 +175,11 @@ class RemoteMangaRepository(
 		return getConfig().isSlowdownEnabled
 	}
 
-	private fun getConfig() = parser.config as SourceSettings
+	fun invalidateCache() {
+		cache.clear(source)
+	}
+
+	fun getConfig() = parser.config as SourceSettings
 
 	private suspend fun <T> asyncSafe(block: suspend CoroutineScope.() -> T): SafeDeferred<T> {
 		var dispatcher = currentCoroutineContext()[CoroutineDispatcher.Key]
@@ -227,6 +235,5 @@ class RemoteMangaRepository(
 		}
 	}
 
-	private fun Result<*>.isValidResult() = exceptionOrNull() !is ParseException
-		&& (getOrNull() as? Collection<*>)?.isEmpty() != true
+	private fun Result<*>.isValidResult() = isSuccess && (getOrNull() as? Collection<*>)?.isEmpty() != true
 }

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

@@ -26,6 +26,7 @@ import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
+import org.koitharu.kotatsu.core.util.ext.requireBody
 import org.koitharu.kotatsu.core.util.ext.writeAllCancellable
 import org.koitharu.kotatsu.local.data.CacheDir
 import org.koitharu.kotatsu.local.data.util.withExtraCloseable
@@ -150,10 +151,6 @@ class FaviconFetcher(
 		return if (networkResponse != null) DataSource.NETWORK else DataSource.DISK
 	}
 
-	private fun Response.requireBody(): ResponseBody {
-		return checkNotNull(body) { "response body == null" }
-	}
-
 	private fun Size.toCacheKey() = buildString {
 		append(width.toString())
 		append('x')
@@ -170,10 +167,11 @@ class FaviconFetcher(
 
 	class Factory(
 		context: Context,
-		private val okHttpClient: OkHttpClient,
+		okHttpClientLazy: Lazy<OkHttpClient>,
 		private val mangaRepositoryFactory: MangaRepository.Factory,
 	) : Fetcher.Factory<Uri> {
 
+		private val okHttpClient by okHttpClientLazy
 		private val diskCache = lazy {
 			val rootDir = context.externalCacheDir ?: context.cacheDir
 			DiskCache.Builder()

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

@@ -11,6 +11,7 @@ import androidx.appcompat.app.AppCompatDelegate
 import androidx.collection.ArraySet
 import androidx.core.content.edit
 import androidx.core.os.LocaleListCompat
+import androidx.documentfile.provider.DocumentFile
 import androidx.preference.PreferenceManager
 import dagger.hilt.android.qualifiers.ApplicationContext
 import org.json.JSONArray
@@ -31,6 +32,7 @@ import org.koitharu.kotatsu.parsers.util.mapToSet
 import org.koitharu.kotatsu.reader.domain.ReaderColorFilter
 import java.io.File
 import java.net.Proxy
+import java.util.EnumSet
 import java.util.Locale
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -70,10 +72,20 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 			}
 		}
 
+	val isNavLabelsVisible: Boolean
+		get() = prefs.getBoolean(KEY_NAV_LABELS, true)
+
+	val isNavBarPinned: Boolean
+		get() = prefs.getBoolean(KEY_NAV_PINNED, false)
+
 	var gridSize: Int
 		get() = prefs.getInt(KEY_GRID_SIZE, 100)
 		set(value) = prefs.edit { putInt(KEY_GRID_SIZE, value) }
 
+	var gridSizePages: Int
+		get() = prefs.getInt(KEY_GRID_SIZE_PAGES, 100)
+		set(value) = prefs.edit { putInt(KEY_GRID_SIZE_PAGES, value) }
+
 	var historyListMode: ListMode
 		get() = prefs.getEnumValue(KEY_LIST_MODE_HISTORY, listMode)
 		set(value) = prefs.edit { putEnumValue(KEY_LIST_MODE_HISTORY, value) }
@@ -111,6 +123,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isReaderZoomButtonsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_READER_ZOOM_BUTTONS, false)
 
+	val isReaderControlAlwaysLTR: Boolean
+		get() = prefs.getBoolean(KEY_READER_CONTROL_LTR, false)
+
 	val isReaderFullscreenEnabled: Boolean
 		get() = prefs.getBoolean(KEY_READER_FULLSCREEN, true)
 
@@ -121,6 +136,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_TRAFFIC_WARNING, true)
 		set(value) = prefs.edit { putBoolean(KEY_TRAFFIC_WARNING, value) }
 
+	val isOfflineCheckDisabled: Boolean
+		get() = prefs.getBoolean(KEY_OFFLINE_DISABLED, false)
+
 	var isAllFavouritesVisible: Boolean
 		get() = prefs.getBoolean(KEY_ALL_FAVOURITES_VISIBLE, true)
 		set(value) = prefs.edit { putBoolean(KEY_ALL_FAVOURITES_VISIBLE, value) }
@@ -131,9 +149,15 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isTrackerWifiOnly: Boolean
 		get() = prefs.getBoolean(KEY_TRACKER_WIFI_ONLY, false)
 
+	val trackerFrequencyFactor: Float
+		get() = prefs.getString(KEY_TRACKER_FREQUENCY, null)?.toFloatOrNull() ?: 1f
+
 	val isTrackerNotificationsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_TRACKER_NOTIFICATIONS, true)
 
+	val isTrackerNsfwDisabled: Boolean
+		get() = prefs.getBoolean(KEY_TRACKER_NO_NSFW, false)
+
 	var notificationSound: Uri
 		get() = prefs.getString(KEY_NOTIFICATIONS_SOUND, null)?.toUriOrNull()
 			?: Settings.System.DEFAULT_NOTIFICATION_URI
@@ -161,6 +185,14 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_HISTORY_GROUPING, true)
 		set(value) = prefs.edit { putBoolean(KEY_HISTORY_GROUPING, value) }
 
+	var isUpdatedGroupingEnabled: Boolean
+		get() = prefs.getBoolean(KEY_UPDATED_GROUPING, true)
+		set(value) = prefs.edit { putBoolean(KEY_UPDATED_GROUPING, value) }
+
+	var isFeedHeaderVisible: Boolean
+		get() = prefs.getBoolean(KEY_FEED_HEADER, true)
+		set(value) = prefs.edit { putBoolean(KEY_FEED_HEADER, value) }
+
 	val isReadingIndicatorsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_READING_INDICATORS, true)
 
@@ -171,10 +203,14 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_INCOGNITO_MODE, false)
 		set(value) = prefs.edit { putBoolean(KEY_INCOGNITO_MODE, value) }
 
-	var chaptersReverse: Boolean
+	var isChaptersReverse: Boolean
 		get() = prefs.getBoolean(KEY_REVERSE_CHAPTERS, false)
 		set(value) = prefs.edit { putBoolean(KEY_REVERSE_CHAPTERS, value) }
 
+	var isChaptersGridView: Boolean
+		get() = prefs.getBoolean(KEY_GRID_VIEW_CHAPTERS, false)
+		set(value) = prefs.edit { putBoolean(KEY_GRID_VIEW_CHAPTERS, value) }
+
 	val zoomMode: ZoomMode
 		get() = prefs.getEnumValue(KEY_ZOOM_MODE, ZoomMode.FIT_CENTER)
 
@@ -184,11 +220,20 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	var appPassword: String?
 		get() = prefs.getString(KEY_APP_PASSWORD, null)
 		set(value) = prefs.edit {
-			if (value != null) putString(KEY_APP_PASSWORD, value) else remove(
-				KEY_APP_PASSWORD,
-			)
+			if (value != null) putString(KEY_APP_PASSWORD, value) else remove(KEY_APP_PASSWORD)
 		}
 
+	var isAppPasswordNumeric: Boolean
+		get() = prefs.getBoolean(KEY_APP_PASSWORD_NUMERIC, false)
+		set(value) = prefs.edit { putBoolean(KEY_APP_PASSWORD_NUMERIC, value) }
+
+	val searchSuggestionTypes: Set<SearchSuggestionType>
+		get() = prefs.getStringSet(KEY_SEARCH_SUGGESTION_TYPES, null)?.let { stringSet ->
+			stringSet.mapNotNullTo(EnumSet.noneOf(SearchSuggestionType::class.java)) { x ->
+				enumValueOf<SearchSuggestionType>(x)
+			}
+		} ?: EnumSet.allOf(SearchSuggestionType::class.java)
+
 	val isLoggingEnabled: Boolean
 		get() = prefs.getBoolean(KEY_LOGGING_ENABLED, false)
 
@@ -208,8 +253,24 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isUnstableUpdatesAllowed: Boolean
 		get() = prefs.getBoolean(KEY_UPDATES_UNSTABLE, false)
 
+	val isPagesTabEnabled: Boolean
+		get() = prefs.getBoolean(KEY_PAGES_TAB, true)
+
 	val defaultDetailsTab: Int
-		get() = prefs.getString(KEY_DETAILS_TAB, null)?.toIntOrNull()?.coerceIn(0, 1) ?: 0
+		get() = if (isPagesTabEnabled) {
+			val raw = prefs.getString(KEY_DETAILS_TAB, null)?.toIntOrNull() ?: -1
+			if (raw == -1) {
+				lastDetailsTab
+			} else {
+				raw
+			}.coerceIn(0, 2)
+		} else {
+			0
+		}
+
+	var lastDetailsTab: Int
+		get() = prefs.getInt(KEY_DETAILS_LAST_TAB, 0)
+		set(value) = prefs.edit { putInt(KEY_DETAILS_LAST_TAB, value) }
 
 	val isContentPrefetchEnabled: Boolean
 		get() {
@@ -226,7 +287,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		set(value) = prefs.edit { putEnumValue(KEY_SOURCES_ORDER, value) }
 
 	var isSourcesGridMode: Boolean
-		get() = prefs.getBoolean(KEY_SOURCES_GRID, false)
+		get() = prefs.getBoolean(KEY_SOURCES_GRID, true)
 		set(value) = prefs.edit { putBoolean(KEY_SOURCES_GRID, value) }
 
 	val isNewSourcesTipEnabled: Boolean
@@ -270,6 +331,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isDownloadsWiFiOnly: Boolean
 		get() = prefs.getBoolean(KEY_DOWNLOADS_WIFI, false)
 
+	val preferredDownloadFormat: DownloadFormat
+		get() = prefs.getEnumValue(KEY_DOWNLOADS_FORMAT, DownloadFormat.AUTOMATIC)
+
 	var isSuggestionsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_SUGGESTIONS, false)
 		set(value) = prefs.edit { putBoolean(KEY_SUGGESTIONS, value) }
@@ -319,14 +383,18 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 			}
 		}
 
-	val isImagesProxyEnabled: Boolean
-		get() = prefs.getBoolean(KEY_IMAGES_PROXY, false)
+	val imagesProxy: Int
+		get() {
+			val raw = prefs.getString(KEY_IMAGES_PROXY, null)?.toIntOrNull()
+			return raw ?: if (prefs.getBoolean(KEY_IMAGES_PROXY_OLD, false)) 0 else -1
+		}
 
 	val dnsOverHttps: DoHProvider
 		get() = prefs.getEnumValue(KEY_DOH, DoHProvider.NONE)
 
-	val isSSLBypassEnabled: Boolean
+	var isSSLBypassEnabled: Boolean
 		get() = prefs.getBoolean(KEY_SSL_BYPASS, false)
+		set(value) = prefs.edit { putBoolean(KEY_SSL_BYPASS, value) }
 
 	val proxyType: Proxy.Type
 		get() {
@@ -361,9 +429,13 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isRelatedMangaEnabled: Boolean
 		get() = prefs.getBoolean(KEY_RELATED_MANGA, true)
 
-	val isWebtoonZoomEnable: Boolean
+	val isWebtoonZoomEnabled: Boolean
 		get() = prefs.getBoolean(KEY_WEBTOON_ZOOM, true)
 
+	var isWebtoonGapsEnabled: Boolean
+		get() = prefs.getBoolean(KEY_WEBTOON_GAPS, false)
+		set(value) = prefs.edit { putBoolean(KEY_WEBTOON_GAPS, value) }
+
 	@get:FloatRange(from = 0.0, to = 0.5)
 	val defaultWebtoonZoomOut: Float
 		get() = prefs.getInt(KEY_WEBTOON_ZOOM_OUT, 0).coerceIn(0, 50) / 100f
@@ -406,6 +478,15 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isReadingTimeEstimationEnabled: Boolean
 		get() = prefs.getBoolean(KEY_READING_TIME, true)
 
+	val isPagesSavingAskEnabled: Boolean
+		get() = prefs.getBoolean(KEY_PAGES_SAVE_ASK, true)
+
+	val isStatsEnabled: Boolean
+		get() = prefs.getBoolean(KEY_STATS_ENABLED, false)
+
+	val isAutoLocalChaptersCleanupEnabled: Boolean
+		get() = prefs.getBoolean(KEY_CHAPTERS_CLEAR_AUTO, false)
+
 	fun isTipEnabled(tip: String): Boolean {
 		return prefs.getStringSet(KEY_TIPS_CLOSED, emptySet())?.contains(tip) != true
 	}
@@ -418,6 +499,15 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		prefs.edit { putStringSet(KEY_TIPS_CLOSED, closedTips + tip) }
 	}
 
+	fun getPagesSaveDir(context: Context): DocumentFile? =
+		prefs.getString(KEY_PAGES_SAVE_DIR, null)?.toUriOrNull()?.let {
+			DocumentFile.fromTreeUri(context, it)?.takeIf { it.canWrite() }
+		}
+
+	fun setPagesSaveDir(uri: Uri?) {
+		prefs.edit { putString(KEY_PAGES_SAVE_DIR, uri?.toString()) }
+	}
+
 	fun subscribe(listener: SharedPreferences.OnSharedPreferenceChangeListener) {
 		prefs.registerOnSharedPreferenceChangeListener(listener)
 	}
@@ -464,8 +554,6 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 
 	companion object {
 
-		const val PAGE_SWITCH_VOLUME_KEYS = "volume"
-
 		const val TRACK_HISTORY = "history"
 		const val TRACK_FAVOURITES = "favourites"
 
@@ -477,25 +565,32 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_COLOR_THEME = "color_theme"
 		const val KEY_THEME_AMOLED = "amoled_theme"
 		const val KEY_TRAFFIC_WARNING = "traffic_warning"
+		const val KEY_OFFLINE_DISABLED = "no_offline"
 		const val KEY_PAGES_CACHE_CLEAR = "pages_cache_clear"
 		const val KEY_HTTP_CACHE_CLEAR = "http_cache_clear"
 		const val KEY_COOKIES_CLEAR = "cookies_clear"
+		const val KEY_CHAPTERS_CLEAR = "chapters_clear"
+		const val KEY_CHAPTERS_CLEAR_AUTO = "chapters_clear_auto"
 		const val KEY_THUMBS_CACHE_CLEAR = "thumbs_cache_clear"
 		const val KEY_SEARCH_HISTORY_CLEAR = "search_history_clear"
 		const val KEY_UPDATES_FEED_CLEAR = "updates_feed_clear"
 		const val KEY_GRID_SIZE = "grid_size"
+		const val KEY_GRID_SIZE_PAGES = "grid_size_pages"
 		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_ZOOM_BUTTONS = "reader_zoom_buttons"
+		const val KEY_READER_CONTROL_LTR = "reader_taps_ltr"
 		const val KEY_READER_FULLSCREEN = "reader_fullscreen"
 		const val KEY_READER_VOLUME_BUTTONS = "reader_volume_buttons"
 		const val KEY_TRACKER_ENABLED = "tracker_enabled"
 		const val KEY_TRACKER_WIFI_ONLY = "tracker_wifi"
+		const val KEY_TRACKER_FREQUENCY = "tracker_freq"
 		const val KEY_TRACK_SOURCES = "track_sources"
 		const val KEY_TRACK_CATEGORIES = "track_categories"
 		const val KEY_TRACK_WARNING = "track_warning"
 		const val KEY_TRACKER_NOTIFICATIONS = "tracker_notifications"
+		const val KEY_TRACKER_NO_NSFW = "tracker_no_nsfw"
 		const val KEY_NOTIFICATIONS_SETTINGS = "notifications_settings"
 		const val KEY_NOTIFICATIONS_SOUND = "notifications_sound"
 		const val KEY_NOTIFICATIONS_VIBRATE = "notifications_vibrate"
@@ -505,9 +600,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_READER_MODE = "reader_mode"
 		const val KEY_READER_MODE_DETECT = "reader_mode_detect"
 		const val KEY_APP_PASSWORD = "app_password"
+		const val KEY_APP_PASSWORD_NUMERIC = "app_password_num"
 		const val KEY_PROTECT_APP = "protect_app"
 		const val KEY_PROTECT_APP_BIOMETRIC = "protect_app_bio"
-		const val KEY_APP_VERSION = "app_version"
 		const val KEY_ZOOM_MODE = "zoom_mode"
 		const val KEY_BACKUP = "backup"
 		const val KEY_RESTORE = "restore"
@@ -516,8 +611,10 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_BACKUP_PERIODICAL_OUTPUT = "backup_periodic_output"
 		const val KEY_BACKUP_PERIODICAL_LAST = "backup_periodic_last"
 		const val KEY_HISTORY_GROUPING = "history_grouping"
+		const val KEY_UPDATED_GROUPING = "updated_grouping"
 		const val KEY_READING_INDICATORS = "reading_indicators"
 		const val KEY_REVERSE_CHAPTERS = "reverse_chapters"
+		const val KEY_GRID_VIEW_CHAPTERS = "grid_view_chapters"
 		const val KEY_HISTORY_EXCLUDE_NSFW = "history_exclude_nsfw"
 		const val KEY_PAGES_NUMBERS = "pages_numbers"
 		const val KEY_SCREENSHOTS_POLICY = "screenshots_policy"
@@ -532,6 +629,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_MAL = "mal"
 		const val KEY_KITSU = "kitsu"
 		const val KEY_DOWNLOADS_WIFI = "downloads_wifi"
+		const val KEY_DOWNLOADS_FORMAT = "downloads_format"
 		const val KEY_ALL_FAVOURITES_VISIBLE = "all_favourites_visible"
 		const val KEY_DOH = "doh"
 		const val KEY_EXIT_CONFIRM = "exit_confirm"
@@ -548,12 +646,12 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_LOCAL_LIST_ORDER = "local_order"
 		const val KEY_HISTORY_ORDER = "history_order"
 		const val KEY_FAVORITES_ORDER = "fav_order"
+		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_PREFETCH_CONTENT = "prefetch_content"
 		const val KEY_APP_LOCALE = "app_locale"
 		const val KEY_LOGGING_ENABLED = "logging"
-		const val KEY_LOGS_SHARE = "logs_share"
 		const val KEY_SOURCES_GRID = "sources_grid"
 		const val KEY_SOURCES_NEW = "sources_new"
 		const val KEY_UPDATES_UNSTABLE = "updates_unstable"
@@ -568,11 +666,13 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_PROXY_AUTH = "proxy_auth"
 		const val KEY_PROXY_LOGIN = "proxy_login"
 		const val KEY_PROXY_PASSWORD = "proxy_password"
-		const val KEY_IMAGES_PROXY = "images_proxy"
+		const val KEY_IMAGES_PROXY = "images_proxy_2"
 		const val KEY_LOCAL_MANGA_DIRS = "local_manga_dirs"
 		const val KEY_DISABLE_NSFW = "no_nsfw"
 		const val KEY_RELATED_MANGA = "related_manga"
 		const val KEY_NAV_MAIN = "nav_main"
+		const val KEY_NAV_LABELS = "nav_labels"
+		const val KEY_NAV_PINNED = "nav_pinned"
 		const val KEY_32BIT_COLOR = "enhanced_colors"
 		const val KEY_SOURCES_ORDER = "sources_sort_order"
 		const val KEY_SOURCES_CATALOG = "sources_catalog"
@@ -580,12 +680,25 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_CF_CONTRAST = "cf_contrast"
 		const val KEY_CF_INVERTED = "cf_inverted"
 		const val KEY_CF_GRAYSCALE = "cf_grayscale"
-		const val KEY_IGNORE_DOZE = "ignore_dose"
+		const val KEY_PAGES_TAB = "pages_tab"
 		const val KEY_DETAILS_TAB = "details_tab"
+		const val KEY_DETAILS_LAST_TAB = "details_last_tab"
 		const val KEY_READING_TIME = "reading_time"
+		const val KEY_PAGES_SAVE_DIR = "pages_dir"
+		const val KEY_PAGES_SAVE_ASK = "pages_dir_ask"
+		const val KEY_STATS_ENABLED = "stats_on"
+		const val KEY_FEED_HEADER = "feed_header"
+		const val KEY_SEARCH_SUGGESTION_TYPES = "search_suggest_types"
 
-		// About
+		// keys for non-persistent preferences
+		const val KEY_APP_VERSION = "app_version"
+		const val KEY_IGNORE_DOZE = "ignore_dose"
+		const val KEY_TRACKER_DEBUG = "tracker_debug"
+		const val KEY_LOGS_SHARE = "logs_share"
 		const val KEY_APP_UPDATE = "app_update"
 		const val KEY_APP_TRANSLATION = "about_app_translation"
+
+		// old keys are for migration only
+		private const val KEY_IMAGES_PROXY_OLD = "images_proxy"
 	}
 }

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

@@ -0,0 +1,8 @@
+package org.koitharu.kotatsu.core.prefs
+
+enum class DownloadFormat {
+
+	AUTOMATIC,
+	SINGLE_CBZ,
+	MULTIPLE_CBZ,
+}

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

@@ -17,12 +17,13 @@ enum class NavItem(
 	EXPLORE(R.id.nav_explore, R.string.explore, R.drawable.ic_explore_selector),
 	SUGGESTIONS(R.id.nav_suggestions, R.string.suggestions, R.drawable.ic_suggestion_selector),
 	FEED(R.id.nav_feed, R.string.feed, R.drawable.ic_feed_selector),
+	UPDATED(R.id.nav_updated, R.string.updated, R.drawable.ic_updated_selector),
 	BOOKMARKS(R.id.nav_bookmarks, R.string.bookmarks, R.drawable.ic_bookmark_selector),
 	;
 
 	fun isAvailable(settings: AppSettings): Boolean = when (this) {
 		SUGGESTIONS -> settings.isSuggestionsEnabled
-		FEED -> settings.isTrackerEnabled
+		UPDATED, FEED -> settings.isTrackerEnabled
 		else -> true
 	}
 }

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

@@ -0,0 +1,16 @@
+package org.koitharu.kotatsu.core.prefs
+
+import androidx.annotation.StringRes
+import org.koitharu.kotatsu.R
+
+enum class SearchSuggestionType(
+	@StringRes val titleResId: Int,
+) {
+
+	GENRES(R.string.genres),
+	QUERIES_RECENT(R.string.recent_queries),
+	QUERIES_SUGGEST(R.string.suggested_queries),
+	MANGA(R.string.content_type_manga),
+	SOURCES(R.string.remote_sources),
+	AUTHORS(R.string.authors),
+}

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

@@ -1,17 +1,17 @@
 package org.koitharu.kotatsu.core.prefs
 
 import android.content.Context
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener
 import androidx.core.content.edit
 import org.koitharu.kotatsu.core.util.ext.getEnumValue
 import org.koitharu.kotatsu.core.util.ext.ifNullOrEmpty
 import org.koitharu.kotatsu.core.util.ext.putEnumValue
+import org.koitharu.kotatsu.core.util.ext.sanitizeHeaderValue
 import org.koitharu.kotatsu.parsers.config.ConfigKey
 import org.koitharu.kotatsu.parsers.config.MangaSourceConfig
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.SortOrder
-
-private const val KEY_SORT_ORDER = "sort_order"
-private const val KEY_SLOWDOWN = "slowdown"
+import org.koitharu.kotatsu.settings.utils.validation.DomainValidator
 
 class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig {
 
@@ -27,9 +27,17 @@ class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig
 	@Suppress("UNCHECKED_CAST")
 	override fun <T> get(key: ConfigKey<T>): T {
 		return when (key) {
-			is ConfigKey.UserAgent -> prefs.getString(key.key, key.defaultValue).ifNullOrEmpty { key.defaultValue }
-			is ConfigKey.Domain -> prefs.getString(key.key, key.defaultValue).ifNullOrEmpty { key.defaultValue }
+			is ConfigKey.UserAgent -> prefs.getString(key.key, key.defaultValue)
+				.ifNullOrEmpty { key.defaultValue }
+				.sanitizeHeaderValue()
+
+			is ConfigKey.Domain -> prefs.getString(key.key, key.defaultValue)
+				?.trim()
+				?.takeIf { DomainValidator.isValidDomain(it) }
+				?: key.defaultValue
+
 			is ConfigKey.ShowSuspiciousContent -> prefs.getBoolean(key.key, key.defaultValue)
+			is ConfigKey.SplitByTranslations -> prefs.getBoolean(key.key, key.defaultValue)
 		} as T
 	}
 
@@ -37,7 +45,22 @@ class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig
 		when (key) {
 			is ConfigKey.Domain -> putString(key.key, value as String?)
 			is ConfigKey.ShowSuspiciousContent -> putBoolean(key.key, value as Boolean)
-			is ConfigKey.UserAgent -> putString(key.key, value as String?)
+			is ConfigKey.UserAgent -> putString(key.key, (value as String?)?.sanitizeHeaderValue())
+			is ConfigKey.SplitByTranslations -> putBoolean(key.key, value as Boolean)
 		}
 	}
+
+	fun subscribe(listener: OnSharedPreferenceChangeListener) {
+		prefs.registerOnSharedPreferenceChangeListener(listener)
+	}
+
+	fun unsubscribe(listener: OnSharedPreferenceChangeListener) {
+		prefs.unregisterOnSharedPreferenceChangeListener(listener)
+	}
+
+	companion object {
+
+		const val KEY_SORT_ORDER = "sort_order"
+		const val KEY_SLOWDOWN = "slowdown"
+	}
 }

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

@@ -7,28 +7,25 @@ import android.os.Build
 import android.os.Bundle
 import android.view.KeyEvent
 import android.view.View
-import android.view.ViewGroup
+import android.widget.Toast
 import androidx.annotation.CallSuper
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.view.ActionMode
-import androidx.appcompat.widget.ActionBarContextView
 import androidx.appcompat.widget.Toolbar
 import androidx.core.app.ActivityCompat
-import androidx.core.content.ContextCompat
-import androidx.core.graphics.ColorUtils
-import androidx.core.view.ViewCompat
 import androidx.core.view.WindowCompat
-import androidx.core.view.WindowInsetsCompat
-import androidx.core.view.updateLayoutParams
 import androidx.viewbinding.ViewBinding
+import dagger.hilt.EntryPoint
+import dagger.hilt.InstallIn
 import dagger.hilt.android.EntryPointAccessors
+import dagger.hilt.components.SingletonComponent
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
+import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.util.ActionModeDelegate
-import org.koitharu.kotatsu.core.ui.util.BaseActivityEntryPoint
 import org.koitharu.kotatsu.core.ui.util.WindowInsetsDelegate
-import org.koitharu.kotatsu.core.util.ext.getThemeColor
+import org.koitharu.kotatsu.core.util.ext.isWebViewUnavailable
 
 @Suppress("LeakingThis")
 abstract class BaseActivity<B : ViewBinding> :
@@ -58,11 +55,11 @@ abstract class BaseActivity<B : ViewBinding> :
 		if (isAmoledTheme) {
 			setTheme(R.style.ThemeOverlay_Kotatsu_Amoled)
 		}
+		putDataToExtras(intent)
 		super.onCreate(savedInstanceState)
 		WindowCompat.setDecorFitsSystemWindows(window, false)
 		insetsDelegate.handleImeInsets = true
 		insetsDelegate.addInsetsListener(this)
-		putDataToExtras(intent)
 	}
 
 	override fun onPostCreate(savedInstanceState: Bundle?) {
@@ -70,7 +67,7 @@ abstract class BaseActivity<B : ViewBinding> :
 		onBackPressedDispatcher.addCallback(actionModeDelegate)
 	}
 
-	override fun onNewIntent(intent: Intent?) {
+	override fun onNewIntent(intent: Intent) {
 		putDataToExtras(intent)
 		super.onNewIntent(intent)
 	}
@@ -96,7 +93,20 @@ abstract class BaseActivity<B : ViewBinding> :
 	}
 
 	override fun onSupportNavigateUp(): Boolean {
-		dispatchNavigateUp()
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+			// TODO fix behavior on Android 14
+			dispatchNavigateUp()
+			return true
+		}
+		val fm = supportFragmentManager
+		if (fm.isStateSaved) {
+			return false
+		}
+		if (fm.backStackEntryCount > 0) {
+			fm.popBackStack()
+		} else {
+			dispatchNavigateUp()
+		}
 		return true
 	}
 
@@ -121,32 +131,13 @@ abstract class BaseActivity<B : ViewBinding> :
 	@CallSuper
 	override fun onSupportActionModeStarted(mode: ActionMode) {
 		super.onSupportActionModeStarted(mode)
-		actionModeDelegate.onSupportActionModeStarted(mode)
-		val actionModeColor = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-			ColorUtils.compositeColors(
-				ContextCompat.getColor(this, com.google.android.material.R.color.m3_appbar_overlay_color),
-				getThemeColor(R.attr.m3ColorBackground),
-			)
-		} else {
-			ContextCompat.getColor(this, R.color.kotatsu_m3_background)
-		}
-		val insets = ViewCompat.getRootWindowInsets(viewBinding.root)
-			?.getInsets(WindowInsetsCompat.Type.systemBars()) ?: return
-		findViewById<ActionBarContextView?>(androidx.appcompat.R.id.action_mode_bar).apply {
-			setBackgroundColor(actionModeColor)
-			updateLayoutParams<ViewGroup.MarginLayoutParams> {
-				topMargin = insets.top
-			}
-		}
-		defaultStatusBarColor = window.statusBarColor
-		window.statusBarColor = actionModeColor
+		actionModeDelegate.onSupportActionModeStarted(mode, window)
 	}
 
 	@CallSuper
 	override fun onSupportActionModeFinished(mode: ActionMode) {
 		super.onSupportActionModeFinished(mode)
-		actionModeDelegate.onSupportActionModeFinished(mode)
-		window.statusBarColor = defaultStatusBarColor
+		actionModeDelegate.onSupportActionModeFinished(mode, window)
 	}
 
 	protected open fun dispatchNavigateUp() {
@@ -164,6 +155,29 @@ abstract class BaseActivity<B : ViewBinding> :
 		intent?.putExtra(EXTRA_DATA, intent.data)
 	}
 
+	protected fun setContentViewWebViewSafe(viewBindingProducer: () -> B): Boolean {
+		return try {
+			setContentView(viewBindingProducer())
+			true
+		} catch (e: Exception) {
+			if (e.isWebViewUnavailable()) {
+				Toast.makeText(this, R.string.web_view_unavailable, Toast.LENGTH_LONG).show()
+				finishAfterTransition()
+				false
+			} else {
+				throw e
+			}
+		}
+	}
+
+	protected fun hasViewBinding() = ::viewBinding.isInitialized
+
+	@EntryPoint
+	@InstallIn(SingletonComponent::class)
+	interface BaseActivityEntryPoint {
+		val settings: AppSettings
+	}
+
 	companion object {
 
 		const val EXTRA_DATA = "data"

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

@@ -19,7 +19,7 @@ abstract class BaseFullscreenActivity<B : ViewBinding> :
 		with(window) {
 			systemUiController = SystemUiController(this)
 			statusBarColor = Color.TRANSPARENT
-			navigationBarColor = if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+			navigationBarColor = if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O_MR1) {
 				ContextCompat.getColor(this@BaseFullscreenActivity, R.color.dim)
 			} else {
 				Color.TRANSPARENT

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

@@ -6,7 +6,12 @@ import com.hannesdorfmann.adapterdelegates4.AdapterDelegate
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.asExecutor
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.channels.trySendBlocking
+import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.FlowCollector
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.onStart
 import org.koitharu.kotatsu.core.util.ContinuationResumeRunnable
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.adapter.ListItemType
@@ -29,8 +34,9 @@ open class BaseListAdapter<T : ListModel> : AsyncListDifferDelegationAdapter<T>(
 		return this
 	}
 
-	fun addListListener(listListener: ListListener<T>) {
+	fun addListListener(listListener: ListListener<T>): BaseListAdapter<T> {
 		differ.addListListener(listListener)
+		return this
 	}
 
 	fun removeListListener(listListener: ListListener<T>) {
@@ -47,4 +53,14 @@ open class BaseListAdapter<T : ListModel> : AsyncListDifferDelegationAdapter<T>(
 		}
 		return null
 	}
+
+	fun observeItems(): Flow<List<T>> = callbackFlow {
+		val listListener = ListListener<T> { _, list ->
+			trySendBlocking(list)
+		}
+		addListListener(listListener)
+		awaitClose { removeListListener(listListener) }
+	}.onStart {
+		emit(items)
+	}
 }

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

@@ -63,7 +63,7 @@ abstract class BasePreferenceFragment(@StringRes private val titleId: Int) :
 		)
 	}
 
-	protected fun setTitle(title: CharSequence?) {
+	protected open fun setTitle(title: CharSequence?) {
 		(activity as? SettingsActivity)?.setSectionTitle(title)
 	}
 

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

@@ -68,6 +68,13 @@ abstract class BaseViewModel : ViewModel() {
 		errorEvent.call(error)
 	}
 
+	protected inline suspend fun <T> withLoading(block: () -> T): T = try {
+		loadingCounter.increment()
+		block()
+	} finally {
+		loadingCounter.decrement()
+	}
+
 	protected fun MutableStateFlow<Int>.increment() = update { it + 1 }
 
 	protected fun MutableStateFlow<Int>.decrement() = update { it - 1 }

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

@@ -1,6 +1,8 @@
 package org.koitharu.kotatsu.core.ui
 
 import android.content.Intent
+import androidx.annotation.AnyThread
+import androidx.annotation.WorkerThread
 import androidx.lifecycle.lifecycleScope
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineExceptionHandler
@@ -39,8 +41,10 @@ abstract class CoroutineIntentService : BaseService() {
 		}
 	}
 
+	@WorkerThread
 	protected abstract suspend fun processIntent(startId: Int, intent: Intent)
 
+	@AnyThread
 	protected abstract fun onError(startId: Int, error: Throwable)
 
 	private fun errorHandler(startId: Int) = CoroutineExceptionHandler { _, throwable ->

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

@@ -68,6 +68,14 @@ class RecyclerViewAlertDialog private constructor(
 			return this
 		}
 
+		fun setNeutralButton(
+			@StringRes textId: Int,
+			listener: DialogInterface.OnClickListener,
+		): Builder<T> {
+			delegate.setNeutralButton(textId, listener)
+			return this
+		}
+
 		fun setCancelable(isCancelable: Boolean): Builder<T> {
 			delegate.setCancelable(isCancelable)
 			return this

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

@@ -0,0 +1,78 @@
+package org.koitharu.kotatsu.core.ui.image
+
+import android.animation.TimeAnimator
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.ColorFilter
+import android.graphics.PixelFormat
+import android.graphics.drawable.Animatable
+import android.graphics.drawable.Drawable
+import androidx.interpolator.view.animation.FastOutSlowInInterpolator
+import com.google.android.material.animation.ArgbEvaluatorCompat
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.util.ext.getAnimationDuration
+import org.koitharu.kotatsu.core.util.ext.getThemeColor
+import kotlin.math.abs
+import com.google.android.material.R as materialR
+
+class AnimatedPlaceholderDrawable(context: Context) : Drawable(), Animatable, TimeAnimator.TimeListener {
+
+	private val colorLow = context.getThemeColor(materialR.attr.colorSurfaceContainerLowest)
+	private val colorHigh = context.getThemeColor(materialR.attr.colorSurfaceContainerHighest)
+	private var currentColor: Int = colorLow
+	private val interpolator = FastOutSlowInInterpolator()
+	private val period = context.getAnimationDuration(R.integer.config_longAnimTime) * 2
+	private val timeAnimator = TimeAnimator()
+
+	init {
+		timeAnimator.setTimeListener(this)
+		updateColor()
+	}
+
+	override fun draw(canvas: Canvas) {
+		if (!isRunning && period > 0) {
+			updateColor()
+			start()
+		}
+		canvas.drawColor(currentColor)
+	}
+
+	override fun setAlpha(alpha: Int) {
+		// this.alpha = alpha FIXME coil's crossfade
+	}
+
+	override fun setColorFilter(colorFilter: ColorFilter?) = Unit
+
+	@Suppress("DeprecatedCallableAddReplaceWith")
+	@Deprecated("Deprecated in Java")
+	override fun getOpacity(): Int = PixelFormat.OPAQUE
+
+	override fun getAlpha(): Int = 255
+
+	override fun onTimeUpdate(animation: TimeAnimator?, totalTime: Long, deltaTime: Long) {
+		callback?.also {
+			updateColor()
+			it.invalidateDrawable(this)
+		} ?: stop()
+	}
+
+	override fun start() {
+		timeAnimator.start()
+	}
+
+	override fun stop() {
+		timeAnimator.end()
+	}
+
+	override fun isRunning(): Boolean = timeAnimator.isStarted
+
+	private fun updateColor() {
+		if (period <= 0f) {
+			return
+		}
+		val ph = period / 2
+		val fraction = abs((System.currentTimeMillis() % period) - ph) / ph.toFloat()
+		currentColor = ArgbEvaluatorCompat.getInstance()
+			.evaluate(interpolator.getInterpolation(fraction), colorLow, colorHigh)
+	}
+}

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

@@ -0,0 +1,14 @@
+package org.koitharu.kotatsu.core.ui.image
+
+import android.graphics.drawable.Drawable
+import coil.target.GenericViewTarget
+import com.google.android.material.chip.Chip
+
+class ChipIconTarget(override val view: Chip) : GenericViewTarget<Chip>() {
+
+	override var drawable: Drawable?
+		get() = view.chipIcon
+		set(value) {
+			view.chipIcon = value
+		}
+}

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

@@ -6,7 +6,7 @@ import android.view.ViewGroup
 import android.widget.ImageView
 import coil.size.Dimension
 import coil.size.Size
-import coil.size.SizeResolver
+import coil.size.ViewSizeResolver
 import kotlinx.coroutines.CancellableContinuation
 import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlin.coroutines.resume
@@ -16,24 +16,24 @@ private const val ASPECT_RATIO_HEIGHT = 18f
 private const val ASPECT_RATIO_WIDTH = 13f
 
 class CoverSizeResolver(
-	private val imageView: ImageView,
-) : SizeResolver {
+	override val view: ImageView,
+) : ViewSizeResolver<ImageView> {
 
 	override suspend fun size(): Size {
 		getSize()?.let { return it }
 		return suspendCancellableCoroutine { cont ->
 			val layoutListener = LayoutListener(cont)
-			imageView.addOnLayoutChangeListener(layoutListener)
+			view.addOnLayoutChangeListener(layoutListener)
 			cont.invokeOnCancellation {
-				imageView.removeOnLayoutChangeListener(layoutListener)
+				view.removeOnLayoutChangeListener(layoutListener)
 			}
 		}
 	}
 
 	private fun getSize(): Size? {
-		val lp = imageView.layoutParams
-		var width = getDimension(lp.width, imageView.width, imageView.paddingLeft + imageView.paddingRight)
-		var height = getDimension(lp.height, imageView.height, imageView.paddingTop + imageView.paddingBottom)
+		val lp = view.layoutParams
+		var width = getDimension(lp.width, view.width, view.paddingLeft + view.paddingRight)
+		var height = getDimension(lp.height, view.height, view.paddingTop + view.paddingBottom)
 		if (width == null && height == null) {
 			return null
 		}

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

@@ -12,11 +12,10 @@ import android.graphics.RectF
 import android.graphics.drawable.Drawable
 import androidx.annotation.StyleRes
 import androidx.core.content.withStyledAttributes
-import androidx.core.graphics.ColorUtils
 import androidx.core.graphics.withClip
 import com.google.android.material.color.MaterialColors
 import org.koitharu.kotatsu.R
-import kotlin.math.absoluteValue
+import org.koitharu.kotatsu.core.util.KotatsuColors
 
 class FaviconDrawable(
 	context: Context,
@@ -44,7 +43,7 @@ class FaviconDrawable(
 		}
 		paint.textAlign = Paint.Align.CENTER
 		paint.isFakeBoldText = true
-		colorForeground = MaterialColors.harmonize(colorOfString(name), colorBackground)
+		colorForeground = MaterialColors.harmonize(KotatsuColors.random(name), colorBackground)
 	}
 
 	override fun draw(canvas: Canvas) {
@@ -104,9 +103,4 @@ class FaviconDrawable(
 		paint.getTextBounds(text, 0, text.length, tempRect)
 		return testTextSize * width / tempRect.width()
 	}
-
-	private fun colorOfString(str: String): Int {
-		val hue = (str.hashCode() % 360).absoluteValue.toFloat()
-		return ColorUtils.HSLToColor(floatArrayOf(hue, 0.5f, 0.5f))
-	}
 }

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

@@ -29,7 +29,7 @@ class FitHeightGridLayoutManager : GridLayoutManager {
 		if (orientation == RecyclerView.VERTICAL && child.layoutParams.height == LayoutParams.MATCH_PARENT) {
 			val parentBottom = height - paddingBottom
 			val offset = parentBottom - bottom
-			super.layoutDecoratedWithMargins(child, left, top + offset, right, bottom + offset)
+			super.layoutDecoratedWithMargins(child, left, top, right, bottom + offset)
 		} else {
 			super.layoutDecoratedWithMargins(child, left, top, right, bottom)
 		}