Ability to start download paused

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

@@ -0,0 +1,25 @@
+package org.koitharu.kotatsu.core.ui.dialog
+
+import android.content.Context
+import androidx.annotation.UiContext
+import org.koitharu.kotatsu.R
+
+object CommonAlertDialogs {
+
+	fun showDownloadConfirmation(
+		@UiContext context: Context,
+		onConfirmed: (startPaused: Boolean) -> Unit,
+	) = buildAlertDialog(context, isCentered = true) {
+		var startPaused = false
+		setTitle(R.string.save_manga)
+		setIcon(R.drawable.ic_download)
+		setMessage(R.string.save_manga_confirm)
+		setCheckbox(R.string.start_download, true) { _, isChecked ->
+			startPaused = !isChecked
+		}
+		setPositiveButton(R.string.save) { _, _ ->
+			onConfirmed(startPaused)
+		}
+		setNegativeButton(android.R.string.cancel, null)
+	}.show()
+}

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

@@ -168,6 +168,7 @@ abstract class ChaptersPagesViewModel(
 			downloadScheduler.schedule(
 				manga = requireManga(),
 				chaptersIds = chaptersIds,
+				isPaused = false,
 				isSilent = false,
 			)
 			onDownloadStarted.call(Unit)

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

@@ -128,7 +128,11 @@ class DownloadWorker @AssistedInject constructor(
 		val chaptersIds = inputData.getLongArray(CHAPTERS_IDS)?.takeUnless { it.isEmpty() }
 		val downloadedIds = getDoneChapters(manga)
 		return try {
-			withContext(PausingHandle()) {
+			val pausingHandle = PausingHandle()
+			if (inputData.getBoolean(START_PAUSED, false)) {
+				pausingHandle.pause()
+			}
+			withContext(pausingHandle) {
 				downloadMangaImpl(manga, chaptersIds, downloadedIds)
 			}
 			Result.success(currentState.toWorkData())
@@ -431,10 +435,16 @@ class DownloadWorker @AssistedInject constructor(
 		private val settings: AppSettings,
 	) {
 
-		suspend fun schedule(manga: Manga, chaptersIds: Collection<Long>?, isSilent: Boolean) {
+		suspend fun schedule(
+			manga: Manga,
+			chaptersIds: Collection<Long>?,
+			isPaused: Boolean,
+			isSilent: Boolean,
+		) {
 			dataRepository.storeManga(manga)
 			val data = Data.Builder()
 				.putLong(MANGA_ID, manga.id)
+				.putBoolean(START_PAUSED, isPaused)
 				.putBoolean(IS_SILENT, isSilent)
 			if (!chaptersIds.isNullOrEmpty()) {
 				data.putLongArray(CHAPTERS_IDS, chaptersIds.toLongArray())
@@ -442,11 +452,15 @@ class DownloadWorker @AssistedInject constructor(
 			scheduleImpl(listOf(data.build()))
 		}
 
-		suspend fun schedule(manga: Collection<Manga>) {
+		suspend fun schedule(
+			manga: Collection<Manga>,
+			isPaused: Boolean,
+		) {
 			val data = manga.map {
 				dataRepository.storeManga(it)
 				Data.Builder()
 					.putLong(MANGA_ID, it.id)
+					.putBoolean(START_PAUSED, isPaused)
 					.build()
 			}
 			scheduleImpl(data)
@@ -556,6 +570,7 @@ class DownloadWorker @AssistedInject constructor(
 		const val MANGA_ID = "manga_id"
 		const val CHAPTERS_IDS = "chapters"
 		const val IS_SILENT = "silent"
+		const val START_PAUSED = "paused"
 		const val TAG = "download"
 	}
 }

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

@@ -27,6 +27,7 @@ import org.koitharu.kotatsu.core.model.isLocal
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.core.ui.BaseFragment
+import org.koitharu.kotatsu.core.ui.dialog.CommonAlertDialogs
 import org.koitharu.kotatsu.core.ui.dialog.buildAlertDialog
 import org.koitharu.kotatsu.core.ui.list.FitHeightGridLayoutManager
 import org.koitharu.kotatsu.core.ui.list.FitHeightLinearLayoutManager
@@ -238,6 +239,7 @@ abstract class MangaListFragment :
 	}
 
 	override fun onFilterOptionClick(option: ListFilterOption) {
+		selectionController?.clear()
 		(viewModel as? QuickFilterListener)?.toggleFilterOption(option)
 	}
 
@@ -322,8 +324,11 @@ abstract class MangaListFragment :
 			}
 
 			R.id.action_save -> {
-				viewModel.download(selectedItems)
+				val itemsSnapshot = selectedItems
+				CommonAlertDialogs.showDownloadConfirmation(context ?: return false) { startPaused ->
 					mode?.finish()
+					viewModel.download(itemsSnapshot, isPaused = startPaused)
+				}
 				true
 			}
 

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

@@ -46,9 +46,9 @@ abstract class MangaListViewModel(
 
 	abstract fun onRetry()
 
-	fun download(items: Set<Manga>) {
+	fun download(items: Set<Manga>, isPaused: Boolean) {
 		launchJob(Dispatchers.Default) {
-			downloadScheduler.schedule(items)
+			downloadScheduler.schedule(items, isPaused)
 			onDownloadStarted.call(Unit)
 		}
 	}

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/SearchActivity.kt

@@ -17,6 +17,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.BaseActivity
+import org.koitharu.kotatsu.core.ui.dialog.CommonAlertDialogs
 import org.koitharu.kotatsu.core.ui.list.ListSelectionController
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.ui.widgets.TipView
@@ -184,8 +185,11 @@ class SearchActivity :
 			}
 
 			R.id.action_save -> {
-				viewModel.download(collectSelectedItems())
+				val itemsSnapshot = collectSelectedItems()
+				CommonAlertDialogs.showDownloadConfirmation(this) { startPaused ->
 					mode?.finish()
+					viewModel.download(itemsSnapshot, isPaused = startPaused)
+				}
 				true
 			}
 

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/SearchViewModel.kt

@@ -109,9 +109,9 @@ class SearchViewModel @Inject constructor(
 		retryCounter.value += 1
 	}
 
-	fun download(items: Set<Manga>) {
+	fun download(items: Set<Manga>, isPaused: Boolean) {
 		launchJob(Dispatchers.Default) {
-			downloadScheduler.schedule(items)
+			downloadScheduler.schedule(items, isPaused)
 			onDownloadStarted.call(Unit)
 		}
 	}

app/src/main/kotlin/org/koitharu/kotatsu/tracker/work/TrackWorker.kt

@@ -254,6 +254,7 @@ class TrackWorker @AssistedInject constructor(
 					downloadSchedulerLazy.get().schedule(
 						manga = mangaUpdates.manga,
 						chaptersIds = mangaUpdates.newChapters.mapToSet { it.id },
+						isPaused = false,
 						isSilent = true,
 					)
 				}

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

@@ -738,4 +738,7 @@
 	<string name="user_manual">User manual</string>
 	<string name="telegram_group">Telegram group</string>
 	<string name="error_image_format">Unsupported image format: %s</string>
+	<string name="start_download">Start download</string>
+	<string name="save_manga_confirm">Save selected manga? This may consume traffic and disk space</string>
+	<string name="save_manga">Save manga</string>
 </resources>