190 lines
8.1 KiB
Java
190 lines
8.1 KiB
Java
package org.schabi.newpipe.local.playlist;
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import androidx.annotation.Nullable;
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import org.schabi.newpipe.database.AppDatabase;
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import org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry;
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import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
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import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
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import org.schabi.newpipe.database.playlist.dao.PlaylistDAO;
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import org.schabi.newpipe.database.playlist.dao.PlaylistStreamDAO;
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import org.schabi.newpipe.database.playlist.model.PlaylistEntity;
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import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity;
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import org.schabi.newpipe.database.stream.dao.StreamDAO;
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import org.schabi.newpipe.database.stream.model.StreamEntity;
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import java.util.ArrayList;
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import java.util.List;
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import io.reactivex.rxjava3.core.Completable;
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import io.reactivex.rxjava3.core.Flowable;
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import io.reactivex.rxjava3.core.Maybe;
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import io.reactivex.rxjava3.schedulers.Schedulers;
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public class LocalPlaylistManager {
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private static final long THUMBNAIL_ID_LEAVE_UNCHANGED = -2;
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private final AppDatabase database;
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private final StreamDAO streamTable;
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private final PlaylistDAO playlistTable;
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private final PlaylistStreamDAO playlistStreamTable;
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public LocalPlaylistManager(final AppDatabase db) {
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database = db;
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streamTable = db.streamDAO();
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playlistTable = db.playlistDAO();
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playlistStreamTable = db.playlistStreamDAO();
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}
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public Maybe<List<Long>> createPlaylist(final String name, final List<StreamEntity> streams) {
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// Disallow creation of empty playlists
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if (streams.isEmpty()) {
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return Maybe.empty();
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}
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// Save to the database directly.
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// Make sure the new playlist is always on the top of bookmark.
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// The index will be reassigned to non-negative number in BookmarkFragment.
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return Maybe.fromCallable(() -> database.runInTransaction(() -> {
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final List<Long> streamIds = streamTable.upsertAll(streams);
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final PlaylistEntity newPlaylist = new PlaylistEntity(name, false,
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streamIds.get(0), -1);
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return insertJoinEntities(playlistTable.insert(newPlaylist),
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streamIds, 0);
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}
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)).subscribeOn(Schedulers.io());
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}
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public Maybe<List<Long>> appendToPlaylist(final long playlistId,
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final List<StreamEntity> streams) {
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return playlistStreamTable.getMaximumIndexOf(playlistId)
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.firstElement()
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.map(maxJoinIndex -> database.runInTransaction(() -> {
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final List<Long> streamIds = streamTable.upsertAll(streams);
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return insertJoinEntities(playlistId, streamIds, maxJoinIndex + 1);
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}
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)).subscribeOn(Schedulers.io());
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}
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private List<Long> insertJoinEntities(final long playlistId, final List<Long> streamIds,
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final int indexOffset) {
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final List<PlaylistStreamEntity> joinEntities = new ArrayList<>(streamIds.size());
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for (int index = 0; index < streamIds.size(); index++) {
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joinEntities.add(new PlaylistStreamEntity(playlistId, streamIds.get(index),
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index + indexOffset));
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}
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return playlistStreamTable.insertAll(joinEntities);
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}
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public Completable updateJoin(final long playlistId, final List<Long> streamIds) {
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final List<PlaylistStreamEntity> joinEntities = new ArrayList<>(streamIds.size());
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for (int i = 0; i < streamIds.size(); i++) {
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joinEntities.add(new PlaylistStreamEntity(playlistId, streamIds.get(i), i));
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}
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return Completable.fromRunnable(() -> database.runInTransaction(() -> {
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playlistStreamTable.deleteBatch(playlistId);
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playlistStreamTable.insertAll(joinEntities);
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})).subscribeOn(Schedulers.io());
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}
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public Completable updatePlaylists(final List<PlaylistMetadataEntry> updateItems,
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final List<Long> deletedItems) {
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final List<PlaylistEntity> items = new ArrayList<>(updateItems.size());
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for (final PlaylistMetadataEntry item : updateItems) {
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items.add(new PlaylistEntity(item));
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}
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return Completable.fromRunnable(() -> database.runInTransaction(() -> {
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for (final Long uid : deletedItems) {
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playlistTable.deletePlaylist(uid);
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}
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for (final PlaylistEntity item : items) {
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playlistTable.upsertPlaylist(item);
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}
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})).subscribeOn(Schedulers.io());
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}
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public Flowable<List<PlaylistStreamEntry>> getDistinctPlaylistStreams(final long playlistId) {
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return playlistStreamTable
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.getStreamsWithoutDuplicates(playlistId).subscribeOn(Schedulers.io());
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}
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/**
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* Get playlists with attached information about how many times the provided stream is already
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* contained in each playlist.
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*
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* @param streamUrl the stream url for which to check for duplicates
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* @return a list of {@link PlaylistDuplicatesEntry}
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*/
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public Flowable<List<PlaylistDuplicatesEntry>> getPlaylistDuplicates(final String streamUrl) {
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return playlistStreamTable.getPlaylistDuplicatesMetadata(streamUrl)
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.subscribeOn(Schedulers.io());
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}
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public Flowable<List<PlaylistMetadataEntry>> getPlaylists() {
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return playlistStreamTable.getPlaylistMetadata().subscribeOn(Schedulers.io());
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}
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public Flowable<List<PlaylistStreamEntry>> getPlaylistStreams(final long playlistId) {
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return playlistStreamTable.getOrderedStreamsOf(playlistId).subscribeOn(Schedulers.io());
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}
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public Maybe<Integer> renamePlaylist(final long playlistId, final String name) {
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return modifyPlaylist(playlistId, name, THUMBNAIL_ID_LEAVE_UNCHANGED, false);
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}
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public Maybe<Integer> changePlaylistThumbnail(final long playlistId,
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final long thumbnailStreamId,
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final boolean isPermanent) {
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return modifyPlaylist(playlistId, null, thumbnailStreamId, isPermanent);
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}
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public long getPlaylistThumbnailStreamId(final long playlistId) {
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return playlistTable.getPlaylist(playlistId).blockingFirst().get(0).getThumbnailStreamId();
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}
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public boolean getIsPlaylistThumbnailPermanent(final long playlistId) {
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return playlistTable.getPlaylist(playlistId).blockingFirst().get(0)
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.getIsThumbnailPermanent();
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}
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public long getAutomaticPlaylistThumbnailStreamId(final long playlistId) {
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final long streamId = playlistStreamTable.getAutomaticThumbnailStreamId(playlistId)
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.blockingFirst();
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if (streamId < 0) {
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return PlaylistEntity.DEFAULT_THUMBNAIL_ID;
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}
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return streamId;
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}
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private Maybe<Integer> modifyPlaylist(final long playlistId,
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@Nullable final String name,
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final long thumbnailStreamId,
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final boolean isPermanent) {
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return playlistTable.getPlaylist(playlistId)
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.firstElement()
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.filter(playlistEntities -> !playlistEntities.isEmpty())
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.map(playlistEntities -> {
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final PlaylistEntity playlist = playlistEntities.get(0);
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if (name != null) {
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playlist.setName(name);
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}
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if (thumbnailStreamId != THUMBNAIL_ID_LEAVE_UNCHANGED) {
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playlist.setThumbnailStreamId(thumbnailStreamId);
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playlist.setIsThumbnailPermanent(isPermanent);
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}
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return playlistTable.update(playlist);
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}).subscribeOn(Schedulers.io());
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}
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public Maybe<Boolean> hasPlaylists() {
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return playlistTable.getCount()
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.firstElement()
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.map(count -> count > 0)
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.subscribeOn(Schedulers.io());
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}
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}
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