Only add locale language to enabled languages if it is not English based

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -217,7 +217,10 @@ class PreferencesHelper(val context: Context) {
 
     fun browseAsList() = flowPrefs.getBoolean(Keys.catalogueAsList, false)
 
-    fun enabledLanguages() = flowPrefs.getStringSet(Keys.enabledLanguages, setOf("all", "en", Locale.getDefault().language))
+    fun enabledLanguages() = flowPrefs.getStringSet(
+        Keys.enabledLanguages,
+        setOfNotNull("all", "en", Locale.getDefault().language.takeIf { !it.startsWith("en") }),
+    )
 
     fun sourceSorting() = flowPrefs.getInt(Keys.sourcesSort, 0)
 

app/src/main/java/eu/kanade/tachiyomi/source/Source.kt

@@ -88,16 +88,17 @@ interface Source {
         return fetchPageList(chapter).awaitSingle()
     }
 
-    fun includeLangInName(isMultiLingual: Boolean, extensionManager: ExtensionManager? = null): Boolean {
+    fun includeLangInName(enabledLanguages: Set<String>, extensionManager: ExtensionManager? = null): Boolean {
         val httpSource = this as? HttpSource ?: return true
         val extManager = extensionManager ?: Injekt.get()
         val allExt = httpSource.getExtension(extManager)?.lang == "all"
         val onlyAll = httpSource.extOnlyHasAllLanguage(extManager)
+        val isMultiLingual = enabledLanguages.filterNot { it == "all" }.size > 1
         return (isMultiLingual && allExt) || (lang == "all" && !onlyAll)
     }
 
-    fun nameBasedOnEnabledLanguages(isMultiLingual: Boolean, extensionManager: ExtensionManager? = null): String {
+    fun nameBasedOnEnabledLanguages(enabledLanguages: Set<String>, extensionManager: ExtensionManager? = null): String {
-        return if (includeLangInName(isMultiLingual, extensionManager)) toString() else name
+        return if (includeLangInName(enabledLanguages, extensionManager)) toString() else name
     }
 }
 

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

@@ -433,10 +433,9 @@ class MangaHeaderHolder(
             )
         with(binding.mangaSource) {
             val enabledLanguages = presenter.preferences.enabledLanguages().get()
-                .filterNot { it == "all" }
 
             text = buildSpannedString {
-                append(presenter.source.nameBasedOnEnabledLanguages(enabledLanguages.size > 1))
+                append(presenter.source.nameBasedOnEnabledLanguages(enabledLanguages))
                 if (presenter.source is SourceManager.StubSource &&
                     presenter.source.name != presenter.source.id.toString()
                 ) {

app/src/main/java/eu/kanade/tachiyomi/ui/migration/manga/design/MigrationSourceAdapter.kt

@@ -19,8 +19,7 @@ class MigrationSourceAdapter(
 ) {
 
     val extensionManager: ExtensionManager = Injekt.get()
-    val isMultiLingual =
+    val enabledLanguages = Injekt.get<PreferencesHelper>().enabledLanguages().get()
-        Injekt.get<PreferencesHelper>().enabledLanguages().get().filterNot { it == "all" }.size > 1
 
     override fun onSaveInstanceState(outState: Bundle) {
         super.onSaveInstanceState(outState)

app/src/main/java/eu/kanade/tachiyomi/ui/migration/manga/design/MigrationSourceHolder.kt

@@ -16,7 +16,7 @@ class MigrationSourceHolder(view: View, val adapter: MigrationSourceAdapter) :
     }
 
     fun bind(source: HttpSource, sourceEnabled: Boolean) {
-        binding.title.text = source.nameBasedOnEnabledLanguages(adapter.isMultiLingual, adapter.extensionManager)
+        binding.title.text = source.nameBasedOnEnabledLanguages(adapter.enabledLanguages, adapter.extensionManager)
         // Update circle letter image.
         itemView.post {
             val icon = source.icon()

app/src/main/java/eu/kanade/tachiyomi/ui/more/stats/details/StatsDetailsController.kt

@@ -377,7 +377,7 @@ class StatsDetailsController :
             when (it) {
                 is Category -> it.name
                 is Source -> it.nameBasedOnEnabledLanguages(
-                    presenter.isMultiLingual,
+                    presenter.enabledLanguages,
                     presenter.extensionManager,
                 )
                 else -> it.toString()
@@ -519,7 +519,7 @@ class StatsDetailsController :
                 when (val firstValue = selectedValues.first()) {
                     is Category -> firstValue.name
                     is Source -> firstValue.nameBasedOnEnabledLanguages(
-                        presenter.isMultiLingual,
+                        presenter.enabledLanguages,
                         presenter.extensionManager,
                     )
                     else -> firstValue.toString()

app/src/main/java/eu/kanade/tachiyomi/ui/more/stats/details/StatsDetailsPresenter.kt

@@ -52,7 +52,7 @@ class StatsDetailsPresenter(
     private var mangasDistinct = libraryMangas.distinct()
     val sources = getEnabledSources()
     val extensionManager by injectLazy<ExtensionManager>()
-    val isMultiLingual = prefs.enabledLanguages().get().filterNot { it == "all" }.size > 1
+    val enabledLanguages = prefs.enabledLanguages().get()
 
     var selectedStat: Stats? = null
     var selectedSeriesType = mutableSetOf<String>()
@@ -287,7 +287,7 @@ class StatsDetailsPresenter(
                     meanScore = mangaList.getMeanScoreRounded(),
                     chaptersRead = mangaList.sumOf { it.read },
                     totalChapters = mangaList.sumOf { it.totalChapters },
-                    label = source.nameBasedOnEnabledLanguages(isMultiLingual, extensionManager),
+                    label = source.nameBasedOnEnabledLanguages(enabledLanguages, extensionManager),
                     icon = source.icon(),
                     readDuration = mangaList.getReadDuration(),
                     id = sourceId,

app/src/main/java/eu/kanade/tachiyomi/ui/source/SourceAdapter.kt

@@ -20,8 +20,7 @@ class SourceAdapter(val controller: BrowseController) :
 
     val sourceListener: SourceListener = controller
 
-    val isMultiLingual =
+    val enabledLanguages = Injekt.get<PreferencesHelper>().enabledLanguages().get()
-        Injekt.get<PreferencesHelper>().enabledLanguages().get().filterNot { it == "all" }.size > 1
 
     val extensionManager = controller.presenter.extensionManager
 

app/src/main/java/eu/kanade/tachiyomi/ui/source/SourceHolder.kt

@@ -32,7 +32,7 @@ class SourceHolder(view: View, val adapter: SourceAdapter) :
         val underPinnedSection = item.header?.code?.equals(SourcePresenter.PINNED_KEY) ?: false
         val underLastUsedSection = item.header?.code?.equals(SourcePresenter.LAST_USED_KEY) ?: false
         val isPinned = item.isPinned ?: underPinnedSection
-        val showLanguage = source.includeLangInName(adapter.isMultiLingual, adapter.extensionManager)
+        val showLanguage = source.includeLangInName(adapter.enabledLanguages, adapter.extensionManager)
         val sourceName = if (showLanguage && (underPinnedSection || underLastUsedSection)) source.toString() else source.name
         binding.title.text = sourceName