Option to reverse chapters order

app/src/main/java/org/koitharu/kotatsu/core/exceptions/CloudFlareProtectedException.kt

@@ -8,5 +8,5 @@ class CloudFlareProtectedException(
 	val url: String
 ) : IOException("Protected by CloudFlare"), ResolvableException {
 
-	override val resolveTextId: Int = R.string.resolve
+	override val resolveTextId: Int = R.string.captcha_solve
 }

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

@@ -74,6 +74,8 @@ class AppSettings private constructor(private val prefs: SharedPreferences) :
 
 	var historyGrouping by BoolPreferenceDelegate(KEY_HISTORY_GROUPING, true)
 
+	var chaptersReverse by BoolPreferenceDelegate(KEY_REVERSE_CHAPTERS, false)
+
 	val zoomMode by EnumPreferenceDelegate(
 		ZoomMode::class.java,
 		KEY_ZOOM_MODE,
@@ -175,5 +177,6 @@ class AppSettings private constructor(private val prefs: SharedPreferences) :
 		const val KEY_RESTORE = "restore"
 		const val KEY_HISTORY_GROUPING = "history_grouping"
 		const val KEY_DOZE_WHITELIST = "doze_whitelist"
+		const val KEY_REVERSE_CHAPTERS = "reverse_chapters"
 	}
 }

app/src/main/java/org/koitharu/kotatsu/details/DetailsModule.kt

@@ -9,6 +9,6 @@ val detailsModule
 	get() = module {
 
 		viewModel { (intent: MangaIntent) ->
-			DetailsViewModel(intent, get(), get(), get(), get(), get())
+			DetailsViewModel(intent, get(), get(), get(), get(), get(), get())
 		}
 	}

app/src/main/java/org/koitharu/kotatsu/details/ui/ChaptersFragment.kt

@@ -33,6 +33,11 @@ class ChaptersFragment : BaseFragment<FragmentChaptersBinding>(),
 	private var actionMode: ActionMode? = null
 	private var selectionDecoration: ChaptersSelectionDecoration? = null
 
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setHasOptionsMenu(true)
+	}
+
 	override fun onInflateView(
 		inflater: LayoutInflater,
 		container: ViewGroup?
@@ -51,6 +56,9 @@ class ChaptersFragment : BaseFragment<FragmentChaptersBinding>(),
 
 		viewModel.isLoading.observe(viewLifecycleOwner, this::onLoadingStateChanged)
 		viewModel.chapters.observe(viewLifecycleOwner, this::onChaptersChanged)
+		viewModel.isChaptersReversed.observe(viewLifecycleOwner) {
+			activity?.invalidateOptionsMenu()
+		}
 	}
 
 	override fun onDestroyView() {
@@ -59,12 +67,22 @@ class ChaptersFragment : BaseFragment<FragmentChaptersBinding>(),
 		super.onDestroyView()
 	}
 
-	private fun onChaptersChanged(list: List<ChapterListItem>) {
+	override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
-		chaptersAdapter?.items = list
+		super.onCreateOptionsMenu(menu, inflater)
+		inflater.inflate(R.menu.opt_chapters, menu)
 	}
 
-	private fun onLoadingStateChanged(isLoading: Boolean) {
+	override fun onPrepareOptionsMenu(menu: Menu) {
-		binding.progressBar.isVisible = isLoading
+		super.onPrepareOptionsMenu(menu)
+		menu.findItem(R.id.action_reversed).isChecked = viewModel.isChaptersReversed.value == true
+	}
+
+	override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
+		R.id.action_reversed -> {
+			viewModel.setChaptersReversed(!item.isChecked)
+			true
+		}
+		else -> super.onOptionsItemSelected(item)
 	}
 
 	override fun onItemClick(item: MangaChapter, view: View) {
@@ -159,4 +177,12 @@ class ChaptersFragment : BaseFragment<FragmentChaptersBinding>(),
 			bottom = insets.bottom
 		)
 	}
+
+	private fun onChaptersChanged(list: List<ChapterListItem>) {
+		chaptersAdapter?.items = list
+	}
+
+	private fun onLoadingStateChanged(isLoading: Boolean) {
+		binding.progressBar.isVisible = isLoading
+	}
 }

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

@@ -10,6 +10,7 @@ import org.koitharu.kotatsu.base.domain.MangaIntent
 import org.koitharu.kotatsu.base.ui.BaseViewModel
 import org.koitharu.kotatsu.core.exceptions.MangaNotFoundException
 import org.koitharu.kotatsu.core.model.Manga
+import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.details.ui.model.toListItem
 import org.koitharu.kotatsu.favourites.domain.FavouritesRepository
 import org.koitharu.kotatsu.history.domain.ChapterExtra
@@ -25,7 +26,8 @@ class DetailsViewModel(
 	private val favouritesRepository: FavouritesRepository,
 	private val localMangaRepository: LocalMangaRepository,
 	private val trackingRepository: TrackingRepository,
-	private val mangaDataRepository: MangaDataRepository
+	private val mangaDataRepository: MangaDataRepository,
+	private val settings: AppSettings
 ) : BaseViewModel() {
 
 	private val mangaData = MutableStateFlow<Manga?>(intent.manga)
@@ -48,6 +50,12 @@ class DetailsViewModel(
 			trackingRepository.getNewChaptersCount(mangaId)
 		}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, 0)
 
+	private val chaptersReversed = settings.observe()
+		.filter { it == AppSettings.KEY_REVERSE_CHAPTERS }
+		.map { settings.chaptersReverse }
+		.onStart { emit(settings.chaptersReverse) }
+		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, false)
+
 	val manga = mangaData.filterNotNull()
 		.asLiveData(viewModelScope.coroutineContext)
 	val favouriteCategories = favourite
@@ -56,17 +64,20 @@ class DetailsViewModel(
 		.asLiveData(viewModelScope.coroutineContext)
 	val readingHistory = history
 		.asLiveData(viewModelScope.coroutineContext)
+	val isChaptersReversed = chaptersReversed
+		.asLiveData(viewModelScope.coroutineContext)
 
 	val onMangaRemoved = SingleLiveEvent<Manga>()
 
 	val chapters = combine(
 		mangaData.map { it?.chapters.orEmpty() },
 		history.map { it?.chapterId },
-		newChapters
+		newChapters,
-	) { chapters, currentId, newCount ->
+		chaptersReversed
+	) { chapters, currentId, newCount, reversed ->
 		val currentIndex = chapters.indexOfFirst { it.id == currentId }
 		val firstNewIndex = chapters.size - newCount
-		chapters.mapIndexed { index, chapter ->
+		val res = chapters.mapIndexed { index, chapter ->
 			chapter.toListItem(
 				when {
 					index >= firstNewIndex -> ChapterExtra.NEW
@@ -76,6 +87,7 @@ class DetailsViewModel(
 				}
 			)
 		}
+		if (reversed) res.asReversed() else res
 	}.asLiveData(viewModelScope.coroutineContext + Dispatchers.Default)
 
 	init {
@@ -98,4 +110,8 @@ class DetailsViewModel(
 			onMangaRemoved.postCall(manga)
 		}
 	}
+
+	fun setChaptersReversed(newValue: Boolean) {
+		settings.chaptersReverse = newValue
+	}
 }

app/src/main/java/org/koitharu/kotatsu/list/ui/model/ListModelConversionExt.kt

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.list.ui.model
 
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.core.exceptions.resolve.ResolvableException
 import org.koitharu.kotatsu.core.model.Manga
 import org.koitharu.kotatsu.core.prefs.ListMode
@@ -46,7 +47,7 @@ fun <C : MutableCollection<ListModel>> List<Manga>.toUi(destination: C, mode: Li
 
 fun Throwable.toErrorState(canRetry: Boolean = true) = ErrorState(
 	exception = this,
-	icon = R.drawable.ic_error_large,
+	icon = getErrorIcon(this),
 	canRetry = canRetry,
 	buttonText = (this as? ResolvableException)?.resolveTextId ?: R.string.try_again
 )
@@ -54,4 +55,9 @@ fun Throwable.toErrorState(canRetry: Boolean = true) = ErrorState(
 fun Throwable.toErrorFooter() = ErrorFooter(
 	exception = this,
 	icon = R.drawable.ic_alert_outline
-)
+)
+
+private fun getErrorIcon(error: Throwable) = when (error) {
+	is CloudFlareProtectedException -> R.drawable.ic_denied_large
+	else -> R.drawable.ic_error_large
+}

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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	android:width="48dp"
+	android:height="48dp"
+	android:tint="@color/error"
+	android:viewportWidth="24"
+	android:viewportHeight="24">
+	<path
+		android:fillColor="#000"
+		android:pathData="M12 2C17.5 2 22 6.5 22 12S17.5 22 12 22 2 17.5 2 12 6.5 2 12 2M12 4C10.1 4 8.4 4.6 7.1 5.7L18.3 16.9C19.3 15.5 20 13.8 20 12C20 7.6 16.4 4 12 4M16.9 18.3L5.7 7.1C4.6 8.4 4 10.1 4 12C4 16.4 7.6 20 12 20C13.9 20 15.6 19.4 16.9 18.3Z" />
+</vector>

app/src/main/res/menu/opt_chapters.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto">
+
+	<item
+		android:id="@+id/action_reversed"
+		android:checkable="true"
+		android:orderInCategory="20"
+		android:title="@string/reverse"
+		app:showAsAction="never" />
+
+</menu>

app/src/main/res/menu/opt_details.xml

@@ -1,37 +1,45 @@
 <?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
+<menu
-    xmlns:app="http://schemas.android.com/apk/res-auto">
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto">
 
-    <item
+	<item
-        android:id="@+id/action_share"
+		android:id="@+id/action_share"
-        android:icon="@drawable/ic_share"
+		android:icon="@drawable/ic_share"
-        android:title="@string/share"
+		android:orderInCategory="10"
-        app:showAsAction="ifRoom" />
+		android:title="@string/share"
+		app:showAsAction="ifRoom" />
 
-    <item
+	<item
-        android:id="@+id/action_save"
+		android:id="@+id/action_save"
-        android:title="@string/save"
+		android:orderInCategory="40"
-        android:visible="false"
+		android:title="@string/save"
-        app:showAsAction="never" />
+		android:visible="false"
+		app:showAsAction="never" />
 
-    <item
+	<item
-        android:id="@+id/action_delete"
+		android:id="@+id/action_delete"
-        android:title="@string/delete"
+		android:orderInCategory="40"
-        android:visible="false"
+		android:title="@string/delete"
-        app:showAsAction="never" />
+		android:visible="false"
+		app:showAsAction="never" />
 
-    <item android:id="@+id/action_related"
+	<item
-        android:title="@string/related"
+		android:id="@+id/action_related"
-        app:showAsAction="never" />
+		android:orderInCategory="50"
+		android:title="@string/related"
+		app:showAsAction="never" />
 
-    <item
+	<item
-        android:id="@+id/action_browser"
+		android:id="@+id/action_browser"
-        android:title="@string/open_in_browser"
+		android:orderInCategory="50"
-        app:showAsAction="never" />
+		android:title="@string/open_in_browser"
+		app:showAsAction="never" />
 
-    <item
+	<item
-        android:id="@+id/action_shortcut"
+		android:id="@+id/action_shortcut"
-        android:title="@string/create_shortcut"
+		android:orderInCategory="50"
-        app:showAsAction="never" />
+		android:title="@string/create_shortcut"
+		app:showAsAction="never" />
 
 </menu>

app/src/main/res/values-ru/strings.xml

@@ -189,7 +189,7 @@
 	<string name="reader_mode_hint">Выбранный режим будет сохранён для текущей манги</string>
 	<string name="silent">Без звука</string>
 	<string name="captcha_required">Необходимо пройти CAPTCHA</string>
-	<string name="resolve">Resolve</string>
+	<string name="captcha_solve">Пройти</string>
 	<string name="clear_cookies">Очистить куки</string>
 	<string name="cookies_cleared">Все куки удалены</string>
 	<string name="chapers_checking_progress">Проверка новых глав: %1$d из %2$d</string>
@@ -199,4 +199,5 @@
 	<string name="disable_power_optimization">Отключить оптимизацию батареи</string>
 	<string name="power_optimization_already_disabled">Отпимизация батареи уже отключена</string>
 	<string name="new_chapters_checking">Проверка новых глав</string>
+	<string name="reverse">В обратном порядке</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -191,7 +191,7 @@
 	<string name="reader_mode_hint">Chosen configuration will be remembered for this manga</string>
 	<string name="silent">Silent</string>
 	<string name="captcha_required">CAPTCHA is required</string>
-	<string name="resolve">Resolve</string>
+	<string name="captcha_solve">Solve</string>
 	<string name="clear_cookies">Clear cookies</string>
 	<string name="cookies_cleared">All cookies was removed</string>
 	<string name="chapers_checking_progress">Checking for new chapters: %1$d of %2$d</string>
@@ -201,4 +201,5 @@
 	<string name="power_optimization_simmary">Helps with background operations such as checking for new chapters. Use only if you have a troubles with it</string>
 	<string name="disable_power_optimization">Disable power optimization</string>
 	<string name="new_chapters_checking">New chapters checking</string>
+	<string name="reverse">Reverse</string>
 </resources>