[#11930] Extracting to a separate file

app/src/main/java/org/schabi/newpipe/local/playlist/ExportPlaylist.java

@@ -0,0 +1,90 @@
+package org.schabi.newpipe.local.playlist;
+
+import static com.google.common.collect.Streams.stream;
+import static org.apache.commons.collections4.IterableUtils.reversedIterable;
+import static java.util.Collections.reverse;
+
+import android.content.Context;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
+import org.schabi.newpipe.database.stream.model.StreamEntity;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+import okhttp3.HttpUrl;
+
+
+
+final class ExportPlaylist {
+
+    private ExportPlaylist() {
+    }
+
+    static String export(final PlayListShareMode shareMode,
+                         final List<PlaylistStreamEntry> playlist,
+                         final Context context) {
+
+        return switch (shareMode) {
+
+            case WITH_TITLES            -> exportWithTitles(playlist, context);
+            case JUST_URLS              -> exportJustUrls(playlist);
+            case YOUTUBE_TEMP_PLAYLIST  -> exportAsYoutubeTempPlaylist(playlist);
+        };
+    }
+
+    static String exportWithTitles(final List<PlaylistStreamEntry> playlist,
+                                   final Context context) {
+
+        return playlist.stream()
+            .map(PlaylistStreamEntry::getStreamEntity)
+            .map(entity -> context.getString(R.string.video_details_list_item,
+                                             entity.getTitle(),
+                                             entity.getUrl()
+                                            )
+            )
+            .collect(Collectors.joining("\n"));
+    }
+
+    static String exportJustUrls(final List<PlaylistStreamEntry> playlist) {
+
+        return playlist.stream()
+            .map(PlaylistStreamEntry::getStreamEntity)
+            .map(StreamEntity::getUrl)
+            .collect(Collectors.joining("\n"));
+    }
+
+    static String exportAsYoutubeTempPlaylist(final List<PlaylistStreamEntry> playlist) {
+
+        final List<String> videoIDs =
+            stream(reversedIterable(playlist))
+                .map(PlaylistStreamEntry::getStreamEntity)
+                .map(entity -> getYouTubeId(entity.getUrl()))
+                .filter(Objects::nonNull)
+                .limit(50)
+                .collect(Collectors.toList());
+
+        reverse(videoIDs);
+
+        final String commaSeparatedVideoIDs = videoIDs.stream()
+            .collect(Collectors.joining(","));
+
+        return "http://www.youtube.com/watch_videos?video_ids=" + commaSeparatedVideoIDs;
+    }
+
+    /**
+     * Gets the video id from a YouTube URL.
+     *
+     * @param url YouTube URL
+     * @return the video id
+     */
+    static String getYouTubeId(final String url) {
+
+        final HttpUrl httpUrl = HttpUrl.parse(url);
+
+        return httpUrl == null ? null
+                               : httpUrl.queryParameter("v");
+    }
+}

app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java

@@ -1,15 +1,13 @@
 package org.schabi.newpipe.local.playlist;
 
-import static com.google.common.collect.Streams.stream;
-import static org.apache.commons.collections4.IterableUtils.reversedIterable;
 import static org.schabi.newpipe.error.ErrorUtil.showUiErrorSnackbar;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
+import static org.schabi.newpipe.local.playlist.ExportPlaylist.export;
 import static org.schabi.newpipe.local.playlist.PlayListShareMode.JUST_URLS;
 import static org.schabi.newpipe.local.playlist.PlayListShareMode.WITH_TITLES;
 import static org.schabi.newpipe.local.playlist.PlayListShareMode.YOUTUBE_TEMP_PLAYLIST;
 import static org.schabi.newpipe.util.ThemeHelper.shouldUseGridLayout;
 
-import static java.util.Collections.reverse;
 
 import android.content.Context;
 import android.os.Bundle;
@@ -34,10 +32,6 @@ import androidx.recyclerview.widget.RecyclerView;
 import androidx.viewbinding.ViewBinding;
 
 import com.evernote.android.state.State;
-import com.google.common.collect.Streams;
-
-import org.apache.commons.collections4.IterableUtils;
-import org.apache.commons.collections4.queue.CircularFifoQueue;
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 import org.schabi.newpipe.NewPipeDatabase;
@@ -72,17 +66,14 @@ import org.schabi.newpipe.util.external_communication.ShareUtils;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Objects;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
-import java.util.stream.Stream;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 import io.reactivex.rxjava3.core.Single;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
-import okhttp3.HttpUrl;
 
 public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistStreamEntry>, Void>
         implements PlaylistControlViewHolder, DebounceSavable {
@@ -435,70 +426,6 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
         );
     }
 
-    static String export(final PlayListShareMode shareMode,
-                         final List<PlaylistStreamEntry> playlist,
-                         final Context context) {
-
-        return switch (shareMode) {
-
-            case WITH_TITLES            -> exportWithTitles(playlist, context);
-            case JUST_URLS              -> exportJustUrls(playlist);
-            case YOUTUBE_TEMP_PLAYLIST  -> exportAsYoutubeTempPlaylist(playlist);
-        };
-    }
-
-    static String exportWithTitles(final List<PlaylistStreamEntry> playlist, final Context context) {
-
-        return playlist.stream()
-            .map(PlaylistStreamEntry::getStreamEntity)
-            .map(entity -> context.getString(R.string.video_details_list_item,
-                                             entity.getTitle(),
-                                             entity.getUrl()
-                                            )
-            )
-            .collect(Collectors.joining("\n"));
-    }
-
-    static String exportJustUrls(final List<PlaylistStreamEntry> playlist) {
-
-        return playlist.stream()
-            .map(PlaylistStreamEntry::getStreamEntity)
-            .map(StreamEntity::getUrl)
-            .collect(Collectors.joining("\n"));
-    }
-
-    static String exportAsYoutubeTempPlaylist(final List<PlaylistStreamEntry> playlist) {
-
-        final List<String> videoIDs =
-             stream(reversedIterable(playlist))
-            .map(PlaylistStreamEntry::getStreamEntity)
-            .map(entity -> getYouTubeId(entity.getUrl()))
-            .filter(Objects::nonNull)
-            .limit(50)
-            .collect(Collectors.toList());
-
-        reverse(videoIDs);
-
-        final String commaSeparatedVideoIDs = videoIDs.stream()
-                .collect(Collectors.joining(","));
-
-        return "http://www.youtube.com/watch_videos?video_ids=" + commaSeparatedVideoIDs;
-    }
-
-    /**
-     * Gets the video id from a YouTube URL.
-     *
-     * @param url YouTube URL
-     * @return the video id
-     */
-    static String getYouTubeId(final String url) {
-
-        final HttpUrl httpUrl = HttpUrl.parse(url);
-
-        return httpUrl == null ? null
-                               : httpUrl.queryParameter("v");
-    }
-
     public void removeWatchedStreams(final boolean removePartiallyWatched) {
         if (isRewritingPlaylist) {
             return;

app/src/test/java/org/schabi/newpipe/local/playlist/ExportPlaylistTest.java

@@ -1,5 +1,6 @@
 package org.schabi.newpipe.local.playlist;
 
+import static org.schabi.newpipe.local.playlist.ExportPlaylist.export;
 import static org.schabi.newpipe.local.playlist.PlayListShareMode.JUST_URLS;
 import static org.schabi.newpipe.local.playlist.PlayListShareMode.YOUTUBE_TEMP_PLAYLIST;
 
@@ -14,7 +15,7 @@ import org.schabi.newpipe.extractor.stream.StreamType;
 import java.util.List;
 import java.util.stream.Stream;
 
-public class LocalPlaylistFragmentTest {
+public class ExportPlaylistTest {
 
     @Test
     public void exportAsYouTubeTempPlaylist() {
@@ -27,7 +28,7 @@ public class LocalPlaylistFragmentTest {
             "https://www.youtube.com/watch?v=3"
         );
 
-        final String url = LocalPlaylistFragment.export(YOUTUBE_TEMP_PLAYLIST, playlist, null);
+        final String url = export(YOUTUBE_TEMP_PLAYLIST, playlist, null);
 
         Assert.assertEquals("http://www.youtube.com/watch_videos?video_ids=1,2,3", url);
     }
@@ -55,7 +56,7 @@ public class LocalPlaylistFragmentTest {
             .map(id -> "https://www.youtube.com/watch?v=" + id)
         );
 
-        final String url = LocalPlaylistFragment.export(YOUTUBE_TEMP_PLAYLIST, playlist, null);
+        final String url = export(YOUTUBE_TEMP_PLAYLIST, playlist, null);
 
         Assert.assertEquals(
 
@@ -80,7 +81,7 @@ public class LocalPlaylistFragmentTest {
             "https://www.youtube.com/watch?v=3"
         );
 
-        final String exported = LocalPlaylistFragment.export(JUST_URLS, playlist, null);
+        final String exported = export(JUST_URLS, playlist, null);
 
         Assert.assertEquals("""
             https://www.youtube.com/watch?v=1
@@ -98,7 +99,7 @@ public class LocalPlaylistFragmentTest {
     static List<PlaylistStreamEntry> asPlaylist(final Stream<String> urls) {
 
         return urls
-            .map(LocalPlaylistFragmentTest::newPlaylistStreamEntry)
+            .map(ExportPlaylistTest::newPlaylistStreamEntry)
             .toList();
     }