Add a basic implementation for returnyoutubedislike.com

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -89,6 +89,7 @@ import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.DeviceUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
+import org.schabi.newpipe.util.ReturnYoutubeDislikeUtils;
 import org.schabi.newpipe.util.VideoSegment;
 import org.schabi.newpipe.util.external_communication.KoreUtils;
 import org.schabi.newpipe.util.ListHelper;
@@ -1566,6 +1567,17 @@ public final class VideoDetailFragment
 
             binding.detailThumbsDisabledView.setVisibility(View.VISIBLE);
         } else {
+            if (info.getDislikeCount() == -1) {
+                new Thread(() -> {
+                    info.setDislikeCount(ReturnYoutubeDislikeUtils.getDislikes(info));
+                    activity.runOnUiThread(() -> {
+                        binding.detailThumbsDownCountView.setText(Localization
+                                .shortCount(activity, info.getDislikeCount()));
+                        binding.detailThumbsDownCountView.setVisibility(View.VISIBLE);
+                        binding.detailThumbsDownImgView.setVisibility(View.VISIBLE);
+                    });
+                }).start();
+            }
             if (info.getDislikeCount() >= 0) {
                 binding.detailThumbsDownCountView.setText(Localization
                         .shortCount(activity, info.getDislikeCount()));

app/src/main/java/org/schabi/newpipe/util/ReturnYoutubeDislikeUtils.java

@@ -0,0 +1,68 @@
+package org.schabi.newpipe.util;
+
+import android.util.Log;
+
+import com.grack.nanojson.JsonObject;
+import com.grack.nanojson.JsonParser;
+
+import org.schabi.newpipe.DownloaderImpl;
+import org.schabi.newpipe.MainActivity;
+import org.schabi.newpipe.extractor.stream.StreamInfo;
+
+public final class ReturnYoutubeDislikeUtils {
+
+    private static final String APIURL = "https://returnyoutubedislikeapi.com/votes?videoId=";
+    private static final String TAG = ReturnYoutubeDislikeUtils.class.getSimpleName();
+    private static final boolean DEBUG = MainActivity.DEBUG;
+
+    private ReturnYoutubeDislikeUtils() {
+    }
+
+    @SuppressWarnings("CheckStyle")
+    public static int getDislikes(/*final Context context,*/
+            final StreamInfo streamInfo) {
+      /*
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+
+        final boolean isReturnYoutubeDislikeEnabled = prefs.getBoolean(context
+                .getString(R.string.return_youtube_dislikes_enable_key), false);
+
+        if (!isReturnYoutubeDislikeEnabled) {
+            return -1;
+        }
+       */
+
+        if (!streamInfo.getUrl().startsWith("https://www.youtube.com")) {
+            return -1;
+        }
+
+        JsonObject response = null;
+
+        try {
+            final String responseBody =
+                    DownloaderImpl
+                            .getInstance()
+                            .setCustomTimeout(3)
+                            .get(APIURL + streamInfo.getId())
+                            .responseBody();
+
+            response = JsonParser.object().from(responseBody);
+
+        } catch (final Exception ex) {
+            if (DEBUG) {
+                Log.w(TAG, Log.getStackTraceString(ex));
+            }
+        }
+
+        if (response == null) {
+            return -1;
+        }
+
+        if (response.has("dislikes")) {
+            return response.getInt("dislikes", 0);
+        }
+
+        return -1;
+    }
+
+}