/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package androidx.media3.exoplayer.source;

import androidx.media3.common.C;
import androidx.media3.common.util.UnstableApi;
import com.google.common.collect.ImmutableList;
import java.util.List;

/** Default implementation of {@link CompositeSequenceableLoaderFactory}. */
@UnstableApi
public final class DefaultCompositeSequenceableLoaderFactory
    implements CompositeSequenceableLoaderFactory {

  @Override
  public SequenceableLoader empty() {
    return new CompositeSequenceableLoader(ImmutableList.of(), ImmutableList.of());
  }

  @Deprecated
  @Override
  @SuppressWarnings("deprecation") // Calling deprecated constructor
  public SequenceableLoader createCompositeSequenceableLoader(SequenceableLoader... loaders) {
    return new CompositeSequenceableLoader(loaders);
  }

  @Override
  public SequenceableLoader create(
      List<? extends SequenceableLoader> loaders,
      List<List<@C.TrackType Integer>> loaderTrackTypes) {
    return new CompositeSequenceableLoader(loaders, loaderTrackTypes);
  }
}