Add advanced Library setting to allow library manga's titles to update from source

app/src/main/java/eu/kanade/domain/manga/interactor/UpdateManga.kt

@@ -2,7 +2,10 @@ package eu.kanade.domain.manga.interactor
 
 import eu.kanade.domain.manga.model.hasCustomCover
 import eu.kanade.tachiyomi.data.cache.CoverCache
+import eu.kanade.tachiyomi.data.download.DownloadManager
+import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.model.SManga
+import tachiyomi.domain.library.service.LibraryPreferences
 import tachiyomi.domain.manga.interactor.FetchInterval
 import tachiyomi.domain.manga.model.Manga
 import tachiyomi.domain.manga.model.MangaUpdate
@@ -27,10 +30,13 @@ class UpdateManga(
     }
 
     suspend fun awaitUpdateFromSource(
+        source: Source,
         localManga: Manga,
         remoteManga: SManga,
         manualFetch: Boolean,
         coverCache: CoverCache = Injekt.get(),
+        libraryPreferences: LibraryPreferences = Injekt.get(),
+        downloadManager: DownloadManager = Injekt.get()
     ): Boolean {
         val remoteTitle = try {
             remoteManga.title
@@ -38,8 +44,12 @@ class UpdateManga(
             ""
         }
 
-        // if the manga isn't a favorite, set its title from source and update in db
-        val title = if (remoteTitle.isEmpty() || localManga.favorite) null else remoteTitle
+        // if the manga isn't a favorite (or 'update titles' preference is enabled), set its title from source and update in db
+        val title =
+            if (remoteTitle.isNotEmpty() && (!localManga.favorite || libraryPreferences.updateMangaTitles().get()))
+                remoteTitle
+            else
+                null
 
         val coverLastModified =
             when {
@@ -59,7 +69,7 @@ class UpdateManga(
 
         val thumbnailUrl = remoteManga.thumbnail_url?.takeIf { it.isNotEmpty() }
 
-        return mangaRepository.update(
+        val success = mangaRepository.update(
             MangaUpdate(
                 id = localManga.id,
                 title = title,
@@ -74,6 +84,10 @@ class UpdateManga(
                 initialized = true,
             ),
         )
+        if (success && title != null) {
+            downloadManager.renameManga(source, localManga, title)
+        }
+        return success;
     }
 
     suspend fun awaitUpdateFetchInterval(

app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsAdvancedScreen.kt

@@ -62,6 +62,7 @@ import okhttp3.Headers
 import tachiyomi.core.common.util.lang.launchNonCancellable
 import tachiyomi.core.common.util.lang.withUIContext
 import tachiyomi.core.common.util.system.logcat
+import tachiyomi.domain.library.service.LibraryPreferences
 import tachiyomi.domain.manga.interactor.ResetViewerFlags
 import tachiyomi.i18n.MR
 import tachiyomi.presentation.core.i18n.stringResource
@@ -84,6 +85,7 @@ object SettingsAdvancedScreen : SearchableSettings {
 
         val basePreferences = remember { Injekt.get<BasePreferences>() }
         val networkPreferences = remember { Injekt.get<NetworkPreferences>() }
+        val libraryPreferences = remember { Injekt.get<LibraryPreferences>() }
 
         return listOf(
             Preference.PreferenceItem.TextPreference(
@@ -124,7 +126,7 @@ object SettingsAdvancedScreen : SearchableSettings {
             getBackgroundActivityGroup(),
             getDataGroup(),
             getNetworkGroup(networkPreferences = networkPreferences),
-            getLibraryGroup(),
+            getLibraryGroup(libraryPreferences = libraryPreferences),
             getReaderGroup(basePreferences = basePreferences),
             getExtensionsGroup(basePreferences = basePreferences),
         )
@@ -285,7 +287,9 @@ object SettingsAdvancedScreen : SearchableSettings {
     }
 
     @Composable
-    private fun getLibraryGroup(): Preference.PreferenceGroup {
+    private fun getLibraryGroup(
+        libraryPreferences: LibraryPreferences
+    ): Preference.PreferenceGroup {
         val scope = rememberCoroutineScope()
         val context = LocalContext.current
 
@@ -313,6 +317,11 @@ object SettingsAdvancedScreen : SearchableSettings {
                         }
                     },
                 ),
+                Preference.PreferenceItem.SwitchPreference(
+                    pref = libraryPreferences.updateMangaTitles(),
+                    title = stringResource(MR.strings.pref_update_library_manga_titles),
+                    subtitle = stringResource(MR.strings.pref_update_library_manga_titles_summary),
+                ),
             ),
         )
     }

app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadManager.kt

@@ -327,6 +327,33 @@ class DownloadManager(
         }
     }
 
+    /**
+     * Renames manga download folder
+     *
+     * @param source the source of the manga.
+     * @param manga the manga to rename
+     * @param newTitle the new manga title.
+     */
+    fun renameManga(source: Source, manga: Manga, newTitle: String) {
+        val oldFolder = provider.findMangaDir(manga.title, source) ?: return
+        val newName = provider.getMangaDirName(newTitle)
+
+        if (oldFolder.name == newName) return
+
+        val capitalizationChanged = oldFolder.name.equals(newName, ignoreCase = true)
+        if (capitalizationChanged) {
+            val tempName = newName + Downloader.TMP_DIR_SUFFIX
+            if (!oldFolder.renameTo(tempName)) {
+                logcat(LogPriority.ERROR) { "Failed to rename manga download folder: ${oldFolder.name}" }
+                return
+            }
+        }
+
+        if (!oldFolder.renameTo(newName)) {
+            logcat(LogPriority.ERROR) { "Failed to rename manga download folder: ${oldFolder.name}" }
+        }
+    }
+
     /**
      * Renames an already downloaded chapter
      *

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

@@ -336,7 +336,7 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
         // Update manga metadata if needed
         if (libraryPreferences.autoUpdateMetadata().get()) {
             val networkManga = source.getMangaDetails(manga.toSManga())
-            updateManga.awaitUpdateFromSource(manga, networkManga, manualFetch = false, coverCache)
+            updateManga.awaitUpdateFromSource(source, manga, networkManga, manualFetch = false, coverCache)
         }
 
         val chapters = source.getChapterList(manga.toSManga())

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

@@ -265,7 +265,7 @@ class MangaScreenModel(
         try {
             withIOContext {
                 val networkManga = state.source.getMangaDetails(state.manga.toSManga())
-                updateManga.awaitUpdateFromSource(state.manga, networkManga, manualFetch)
+                updateManga.awaitUpdateFromSource(state.source, state.manga, networkManga, manualFetch)
             }
         } catch (e: Throwable) {
             // Ignore early hints "errors" that aren't handled by OkHttp

domain/src/main/java/tachiyomi/domain/library/service/LibraryPreferences.kt

@@ -188,6 +188,8 @@ class LibraryPreferences(
         ChapterSwipeAction.ToggleRead,
     )
 
+    fun updateMangaTitles() = preferenceStore.getBoolean("pref_update_library_manga_titles", false)
+
     // endregion
 
     enum class ChapterSwipeAction {

i18n/src/commonMain/moko-resources/base/strings.xml

@@ -610,6 +610,8 @@
     <string name="pref_verbose_logging">Verbose logging</string>
     <string name="pref_verbose_logging_summary">Print verbose logs to system log (reduces app performance)</string>
     <string name="pref_debug_info">Debug info</string>
+    <string name="pref_update_library_manga_titles">Allow title changes for library entries</string>
+    <string name="pref_update_library_manga_titles_summary">If a source has a different title for an entry than the one stored in the library, update it to match the source\'s title.</string>
 
       <!-- About section -->
     <string name="website">Website</string>