Localize "No chapters found" error

app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt

@@ -32,6 +32,7 @@ import eu.kanade.tachiyomi.data.database.models.TrackImpl
 import eu.kanade.tachiyomi.data.notification.Notifications
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.util.chapter.NoChaptersException
 import eu.kanade.tachiyomi.util.system.acquireWakeLock
 import eu.kanade.tachiyomi.util.system.isServiceRunning
 import java.io.File
@@ -398,7 +399,12 @@ class BackupRestoreService : Service() {
         return backupManager.restoreChapterFetchObservable(source, manga, chapters)
             // If there's any error, return empty update and continue.
             .onErrorReturn {
-                errors.add(Date() to "${manga.title} - ${it.message}")
+                val errorMessage = if (it is NoChaptersException) {
+                    getString(R.string.no_chapters_error)
+                } else {
+                    it.message
+                }
+                errors.add(Date() to "${manga.title} - $errorMessage")
                 Pair(emptyList(), emptyList())
             }
     }

app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt

@@ -6,6 +6,7 @@ import android.content.Intent
 import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.Category
@@ -21,6 +22,7 @@ import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.util.chapter.NoChaptersException
 import eu.kanade.tachiyomi.util.chapter.syncChaptersWithSource
 import eu.kanade.tachiyomi.util.prepUpdateCover
 import eu.kanade.tachiyomi.util.shouldDownloadNewChapters
@@ -268,7 +270,12 @@ class LibraryUpdateService(
                 updateManga(manga)
                     // If there's any error, return empty update and continue.
                     .onErrorReturn {
-                        failedUpdates.add(Pair(manga, it.message))
+                        val errorMessage = if (it is NoChaptersException) {
+                            getString(R.string.no_chapters_error)
+                        } else {
+                            it.message
+                        }
+                        failedUpdates.add(Pair(manga, errorMessage))
                         Pair(emptyList(), emptyList())
                     }
                     // Filter out mangas without new chapters (or failed).

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt

@@ -65,6 +65,7 @@ import eu.kanade.tachiyomi.ui.reader.ReaderActivity
 import eu.kanade.tachiyomi.ui.recent.history.HistoryController
 import eu.kanade.tachiyomi.ui.recent.updates.UpdatesController
 import eu.kanade.tachiyomi.ui.webview.WebViewActivity
+import eu.kanade.tachiyomi.util.chapter.NoChaptersException
 import eu.kanade.tachiyomi.util.hasCustomCover
 import eu.kanade.tachiyomi.util.system.getResourceColor
 import eu.kanade.tachiyomi.util.system.toast
@@ -696,8 +697,12 @@ class MangaController :
     fun onFetchChaptersError(error: Throwable) {
         isRefreshingChapters = false
         updateRefreshing()
+        if (error is NoChaptersException) {
+            activity?.toast(activity?.getString(R.string.no_chapters_error))
+        } else {
             activity?.toast(error.message)
         }
+    }
 
     fun onChapterStatusChange(download: Download) {
         chaptersAdapter?.currentItems?.find { it.id == download.chapter.id }?.let {

app/src/main/java/eu/kanade/tachiyomi/util/chapter/ChapterSourceSync.kt

@@ -28,7 +28,7 @@ fun syncChaptersWithSource(
     source: Source
 ): Pair<List<Chapter>, List<Chapter>> {
     if (rawSourceChapters.isEmpty()) {
-        throw Exception("No chapters found")
+        throw NoChaptersException()
     }
 
     val downloadManager: DownloadManager = Injekt.get()

app/src/main/java/eu/kanade/tachiyomi/util/chapter/NoChaptersException.kt

@@ -0,0 +1,3 @@
+package eu.kanade.tachiyomi.util.chapter
+
+class NoChaptersException : Exception()

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

@@ -524,6 +524,7 @@
     <string name="download_unread">Unread</string>
     <string name="confirm_delete_chapters">Are you sure you want to delete the selected chapters?</string>
     <string name="invalid_download_dir">Invalid download location</string>
+    <string name="no_chapters_error">No chapters found</string>
 
     <!-- Tracking Screen -->
     <string name="manga_tracking_tab">Tracking</string>
@@ -590,6 +591,10 @@
     <string name="transition_pages_error">Failed to load pages: %1$s</string>
     <string name="page_list_empty_error">No pages found</string>
     <string name="loader_not_implemented_error">Source not found</string>
+    <plurals name="missing_chapters_warning">
+        <item quantity="one">There is 1 missing chapter</item>
+        <item quantity="other">There are %d missing chapters</item>
+    </plurals>
 
     <!-- Updates fragment -->
     <string name="updating_library">Updating library</string>
@@ -700,9 +705,4 @@
     <string name="tapping_inverted_horizontal">Horizontal</string>
     <string name="tapping_inverted_vertical">Vertical</string>
     <string name="tapping_inverted_both">Both</string>
-
-    <plurals name="missing_chapters_warning">
-        <item quantity="one">There is 1 missing chapter</item>
-        <item quantity="other">There are %d missing chapters</item>
-    </plurals>
 </resources>