Enable deprecations in SubtitleHelper (#2036)

Author: Luna712

app/src/main/java/com/lagradost/cloudstream3/syncproviders/providers/SubSource.kt

@@ -29,7 +29,7 @@ class SubSourceApi : SubtitleAPI() {
 
         //Only supports Imdb Id search for now
         if (query.imdbId == null) return null
-        val queryLang = SubtitleHelper.fromTwoLettersToLanguage(query.lang!!)
+        val queryLang = SubtitleHelper.fromTagToEnglishLanguageName(query.lang)
         val type = if ((query.seasonNumber ?: 0) > 0) TvType.TvSeries else TvType.Movie
 
         val searchRes = app.post(

library/src/commonMain/kotlin/com/lagradost/cloudstream3/utils/SubtitleHelper.kt

@@ -103,9 +103,11 @@ object SubtitleHelper {
         return langMetadata
     }
 
-    // @Deprecated(
-    //     "Default language code changed to IETF BCP 47 tag",
-    //     replaceWith = ReplaceWith("fromLanguageToTagIETF(input, looseCheck)"))
+    @Deprecated(
+        "Default language code changed to IETF BCP 47 tag",
+        replaceWith = ReplaceWith("fromLanguageToTagIETF(input, looseCheck)"),
+        level = DeprecationLevel.WARNING
+    )
     /**
      * Language name (english or native) -> ISO_639_1
      * @param input language name
@@ -115,10 +117,11 @@ object SubtitleHelper {
         return getLanguageDataFromName(input, looseCheck)?.ISO_639_1
     }
 
-
-    // @Deprecated(
-    //     "Default language code changed to IETF BCP 47 tag",
-    //     replaceWith = ReplaceWith("fromLanguageToTagIETF(input)"))
+    @Deprecated(
+        "Default language code changed to IETF BCP 47 tag",
+        replaceWith = ReplaceWith("fromLanguageToTagIETF(input)"),
+        level = DeprecationLevel.WARNING
+    )
     /**
      * Language name (english or native) -> ISO_639_3
     */
@@ -154,19 +157,23 @@ object SubtitleHelper {
         return languages.getOrNull(index)
     }
 
-    // @Deprecated(
-    //     "Default language code changed to IETF BCP 47 tag",
-    //     replaceWith = ReplaceWith("fromTagToLanguageName(input)"))
+    @Deprecated(
+        "Default language code changed to IETF BCP 47 tag",
+        replaceWith = ReplaceWith("fromTagToEnglishLanguageName(input)"),
+        level = DeprecationLevel.WARNING
+    )
     /**
      * Language code -> language english name
     */
     fun fromTwoLettersToLanguage(input: String): String? {
         return getLanguageDataFromCode(input)?.languageName
     }
 
-    // @Deprecated(
-    //     "Default language code changed to IETF BCP 47 tag",
-    //     replaceWith = ReplaceWith("fromTagToLanguageName(input)"))
+    @Deprecated(
+        "Default language code changed to IETF BCP 47 tag",
+        replaceWith = ReplaceWith("fromTagToEnglishLanguageName(input)"),
+        level = DeprecationLevel.WARNING
+    )
     /**
      * Language code -> language english name
     */