Show progress of new chapters checking

.idea/dictionaries/admin.xml

@@ -8,6 +8,7 @@
       <w>koin</w>
       <w>kotatsu</w>
       <w>manga</w>
+      <w>snackbar</w>
       <w>upsert</w>
       <w>webtoon</w>
     </words>

app/src/main/java/org/koitharu/kotatsu/tracker/ui/FeedFragment.kt

@@ -19,6 +19,7 @@ import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.tracker.ui.adapter.FeedAdapter
 import org.koitharu.kotatsu.tracker.work.TrackWorker
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
+import org.koitharu.kotatsu.utils.progress.Progress
 
 class FeedFragment : BaseFragment<FragmentFeedBinding>(), PaginationScrollListener.Callback,
 	OnListItemClickListener<Manga> {
@@ -26,6 +27,7 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(), PaginationScrollListen
 	private val viewModel by viewModel<FeedViewModel>()
 
 	private var feedAdapter: FeedAdapter? = null
+	private var updateStatusSnackbar: Snackbar? = null
 
 	override fun getTitle() = context?.getString(R.string.updates)
 
@@ -53,6 +55,8 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(), PaginationScrollListen
 
 		viewModel.content.observe(viewLifecycleOwner, this::onListChanged)
 		viewModel.onError.observe(viewLifecycleOwner, this::onError)
+		TrackWorker.getProgressLiveData(view.context.applicationContext)
+			.observe(viewLifecycleOwner, this::onUpdateProgressChanged)
 	}
 
 	override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
@@ -66,7 +70,7 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(), PaginationScrollListen
 			Snackbar.make(
 				binding.recyclerView,
 				R.string.feed_will_update_soon,
-				Snackbar.LENGTH_LONG
+				Snackbar.LENGTH_SHORT
 			).show()
 			true
 		}
@@ -75,6 +79,7 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(), PaginationScrollListen
 
 	override fun onDestroyView() {
 		feedAdapter = null
+		updateStatusSnackbar = null
 		super.onDestroyView()
 	}
 
@@ -98,6 +103,25 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(), PaginationScrollListen
 		).show()
 	}
 
+	private fun onUpdateProgressChanged(progress: Progress?) {
+		if (progress == null) {
+			updateStatusSnackbar?.dismiss()
+			updateStatusSnackbar = null
+			return
+		}
+		val summaryText = getString(
+			R.string.chapers_checking_progress,
+			progress.value + 1,
+			progress.total
+		)
+		updateStatusSnackbar?.setText(summaryText) ?: run {
+			val snackbar =
+				Snackbar.make(binding.recyclerView, summaryText, Snackbar.LENGTH_INDEFINITE)
+			updateStatusSnackbar = snackbar
+			snackbar.show()
+		}
+	}
+
 	override fun onScrolledToEnd() {
 		viewModel.loadList(append = true)
 	}

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

@@ -8,6 +8,8 @@ import android.os.Build
 import androidx.annotation.RequiresApi
 import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.map
 import androidx.work.*
 import coil.ImageLoader
 import coil.request.ImageRequest
@@ -24,6 +26,7 @@ import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.ext.mangaRepositoryOf
 import org.koitharu.kotatsu.utils.ext.toBitmapOrNull
 import org.koitharu.kotatsu.utils.ext.toUriOrNull
+import org.koitharu.kotatsu.utils.progress.Progress
 import java.util.concurrent.TimeUnit
 
 class TrackWorker(context: Context, workerParams: WorkerParameters) :
@@ -50,10 +53,14 @@ class TrackWorker(context: Context, workerParams: WorkerParameters) :
 			return Result.success()
 		}
 		var success = 0
-		for (track in tracks) {
+		val workData = Data.Builder()
+			.putInt(DATA_TOTAL, tracks.size)
+		for ((index, track) in tracks.withIndex()) {
 			val details = runCatching {
 				mangaRepositoryOf(track.manga.source).getDetails(track.manga)
 			}.getOrNull()
+			workData.putInt(DATA_PROGRESS, index)
+			setProgress(workData.build())
 			val chapters = details?.chapters ?: continue
 			when {
 				track.knownChaptersCount == -1 -> { //first check
@@ -194,6 +201,8 @@ class TrackWorker(context: Context, workerParams: WorkerParameters) :
 	companion object {
 
 		const val CHANNEL_ID = "tracking"
+		private const val DATA_PROGRESS = "progress"
+		private const val DATA_TOTAL = "total"
 		private const val TAG = "tracking"
 
 		@RequiresApi(Build.VERSION_CODES.O)
@@ -240,5 +249,20 @@ class TrackWorker(context: Context, workerParams: WorkerParameters) :
 			WorkManager.getInstance(context)
 				.enqueue(request)
 		}
+
+		fun getProgressLiveData(context: Context): LiveData<Progress?> {
+			return WorkManager.getInstance(context)
+				.getWorkInfosByTagLiveData(TAG)
+				.map { list ->
+					list.find { work ->
+						work.state == WorkInfo.State.RUNNING
+					}?.let { workInfo ->
+						Progress(
+							value = workInfo.progress.getInt(DATA_PROGRESS, 0),
+							total = workInfo.progress.getInt(DATA_TOTAL, -1)
+						).takeUnless { it.isIndeterminate }
+					}
+				}
+		}
 	}
 }

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

@@ -192,4 +192,5 @@
 	<string name="resolve">Resolve</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>
 </resources>

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

@@ -194,4 +194,5 @@
 	<string name="resolve">Resolve</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>
 </resources>