[skip ci] Added option to select the preferred language for subs (Resolves #239) (#393)

app/src/main/java/ani/dantotsu/Functions.kt

@@ -154,6 +154,7 @@ import java.io.FileOutputStream
 import java.io.OutputStream
 import java.lang.reflect.Field
 import java.util.Calendar
+import java.util.Locale
 import java.util.TimeZone
 import java.util.Timer
 import java.util.TimerTask
@@ -1538,4 +1539,27 @@ fun getYoutubeId(url: String): String {
     val regex = """(?:youtube\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|(?:youtu\.be|youtube\.com)/)([^"&?/\s]{11})|youtube\.com/""".toRegex()
     val matchResult = regex.find(url)
     return matchResult?.groupValues?.getOrNull(1) ?: ""
-}
+}
+
+fun getLanguageCode(language: String): CharSequence {
+    val locales = Locale.getAvailableLocales()
+    for (locale in locales) {
+        if (locale.displayLanguage.equals(language, ignoreCase = true)) {
+            val lang: CharSequence = locale.language
+            return lang
+
+        }
+    }
+    val out: CharSequence = "null"
+    return out
+}
+
+fun getLanguageName(language: String): String? {
+    val locales = Locale.getAvailableLocales()
+    for (locale in locales) {
+        if (locale.language.equals(language, ignoreCase = true)) {
+            return locale.displayLanguage
+        }
+    }
+    return null
+}

app/src/main/java/ani/dantotsu/media/anime/ExoplayerView.kt

@@ -117,6 +117,7 @@ import ani.dantotsu.download.DownloadsManager.Companion.getSubDirectory
 import ani.dantotsu.download.video.Helper
 import ani.dantotsu.dp
 import ani.dantotsu.getCurrentBrightnessValue
+import ani.dantotsu.getLanguageCode
 import ani.dantotsu.hideSystemBars
 import ani.dantotsu.hideSystemBarsExtendView
 import ani.dantotsu.isOnline
@@ -1396,13 +1397,57 @@ class ExoplayerView : AppCompatActivity(), Player.Listener, SessionAvailabilityL
         val ext = episode.extractors?.find { it.server.name == episode.selectedExtractor } ?: return
         extractor = ext
         video = ext.videos.getOrNull(episode.selectedVideo) ?: return
+        val subLanguages = arrayOf(
+            "Albanian",
+            "Arabic",
+            "Bosnian",
+            "Bulgarian",
+            "Chinese",
+            "Croatian",
+            "Czech",
+            "Danish",
+            "Dutch",
+            "English",
+            "Estonian",
+            "Finnish",
+            "French",
+            "Georgian",
+            "German",
+            "Greek",
+            "Hebrew",
+            "Hindi",
+            "Indonesian",
+            "Irish",
+            "Italian",
+            "Japanese",
+            "Korean",
+            "Lithuanian",
+            "Luxembourgish",
+            "Macedonian",
+            "Mongolian",
+            "Norwegian",
+            "Polish",
+            "Portuguese",
+            "Punjabi",
+            "Romanian",
+            "Russian",
+            "Serbian",
+            "Slovak",
+            "Slovenian",
+            "Spanish",
+            "Turkish",
+            "Ukrainian",
+            "Urdu",
+            "Vietnamese",
+        )
+        val lang = subLanguages[PrefManager.getVal(PrefName.SubLanguage)]
         subtitle = intent.getSerialized("subtitle")
             ?: when (val subLang: String? =
                 PrefManager.getNullableCustomVal("subLang_${media.id}", null, String::class.java)) {
                 null -> {
                     when (episode.selectedSubtitle) {
                         null -> null
-                        -1 -> ext.subtitles.find { it.language.trim() == "English" || it.language == "en-US" }
+                        -1 -> ext.subtitles.find { it.language.contains( lang, ignoreCase = true ) || it.language.contains( getLanguageCode(lang), ignoreCase = true ) }
                         else -> ext.subtitles.getOrNull(episode.selectedSubtitle!!)
                     }
                 }

app/src/main/java/ani/dantotsu/settings/PlayerSettingsActivity.kt

@@ -1,6 +1,7 @@
 package ani.dantotsu.settings
 
 import android.app.AlertDialog
+import android.app.Dialog
 import android.content.res.Resources
 import android.graphics.Color
 import android.os.Build
@@ -32,7 +33,6 @@ import ani.dantotsu.util.customAlertDialog
 import com.google.android.material.slider.Slider.OnChangeListener
 import kotlin.math.roundToInt
 
-
 class PlayerSettingsActivity : AppCompatActivity() {
     lateinit var binding: ActivityPlayerSettingsBinding
     private val player = "player_settings"
@@ -318,6 +318,61 @@ class PlayerSettingsActivity : AppCompatActivity() {
             toggleSubOptions(isChecked)
         }
         toggleSubOptions(binding.subSwitch.isChecked)
+        val subLanguages = arrayOf(
+            "Albanian",
+            "Arabic",
+            "Bosnian",
+            "Bulgarian",
+            "Chinese",
+            "Croatian",
+            "Czech",
+            "Danish",
+            "Dutch",
+            "English",
+            "Estonian",
+            "Finnish",
+            "French",
+            "Georgian",
+            "German",
+            "Greek",
+            "Hebrew",
+            "Hindi",
+            "Indonesian",
+            "Irish",
+            "Italian",
+            "Japanese",
+            "Korean",
+            "Lithuanian",
+            "Luxembourgish",
+            "Macedonian",
+            "Mongolian",
+            "Norwegian",
+            "Polish",
+            "Portuguese",
+            "Punjabi",
+            "Romanian",
+            "Russian",
+            "Serbian",
+            "Slovak",
+            "Slovenian",
+            "Spanish",
+            "Turkish",
+            "Ukrainian",
+            "Urdu",
+            "Vietnamese",
+        )
+        val subLanguageDialog = AlertDialog.Builder(this, R.style.MyPopup)
+            .setTitle(getString(R.string.subtitle_langauge))
+        binding.videoSubLanguage.setOnClickListener {
+            val dialog = subLanguageDialog.setSingleChoiceItems(
+                subLanguages,
+                PrefManager.getVal(PrefName.SubLanguage)
+            ) { dialog, count ->
+                PrefManager.setVal(PrefName.SubLanguage, count)
+                dialog.dismiss()
+            }.show()
+            dialog.window?.setDimAmount(0.8f)
+        }
         val colorsPrimary =
             arrayOf(
                 "Black",

app/src/main/java/ani/dantotsu/settings/saving/Preferences.kt

@@ -92,6 +92,7 @@ enum class PrefName(val data: Pref) {  //TODO: Split this into multiple files
     CursedSpeeds(Pref(Location.Player, Boolean::class, false)),
     Resize(Pref(Location.Player, Int::class, 0)),
     Subtitles(Pref(Location.Player, Boolean::class, true)),
+    SubLanguage(Pref(Location.Player, Int::class, 9)),
     PrimaryColor(Pref(Location.Player, Int::class, 4)),
     SecondaryColor(Pref(Location.Player, Int::class, 0)),
     Outline(Pref(Location.Player, Int::class, 0)),