/*
 * Copyright 2020 Google LLC
 *
 * 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
 *
 *      https://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 com.google.android.apps.exposurenotification.storage;

import android.net.Uri;
import androidx.annotation.AnyThread;
import androidx.annotation.WorkerThread;
import com.google.common.util.concurrent.ListenableFuture;
import javax.inject.Inject;

/**
 * Abstracts database access to {@link DownloadServerDao}.
 */
public class DownloadServerRepository {

  private final DownloadServerDao dao;

  @Inject
  public DownloadServerRepository(ExposureNotificationDatabase db) {
    dao = db.downloadServerDao();
  }

  @WorkerThread
  public Uri getMostRecentSuccessfulDownload(Uri indexUri) {
    return dao.getMostRecentSuccessfulDownload(indexUri);
  }

  @WorkerThread
  public void upsert(DownloadServerEntity server) {
    dao.upsert(server);
  }

  @AnyThread
  public ListenableFuture<Void> deleteDownloadServerEntitiesAsync() {
    return dao.deleteAll();
  }

}
