/*
 * 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 com.android.incallui.videotech.empty;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.telecom.PhoneAccountHandle;
import com.android.dialer.common.Assert;
import com.android.incallui.video.protocol.VideoCallScreen;
import com.android.incallui.video.protocol.VideoCallScreenDelegate;
import com.android.incallui.videotech.VideoTech;
import com.android.incallui.videotech.utils.SessionModificationState;

/** Default video tech that is always available but doesn't do anything. */
public class EmptyVideoTech implements VideoTech {

  @Override
  public boolean isAvailable(Context context, PhoneAccountHandle phoneAccountHandle) {
    return false;
  }

  @Override
  public boolean isTransmittingOrReceiving() {
    return false;
  }

  @Override
  public boolean isSelfManagedCamera() {
    return false;
  }

  @Override
  public boolean shouldUseSurfaceView() {
    return false;
  }

  @Override
  public boolean isPaused() {
    return false;
  }

  @Override
  public VideoCallScreenDelegate createVideoCallScreenDelegate(
      Context context, VideoCallScreen videoCallScreen) {
    throw Assert.createUnsupportedOperationFailException();
  }

  @Override
  public void onCallStateChanged(
      Context context, int newState, PhoneAccountHandle phoneAccountHandle) {}

  @Override
  public void onRemovedFromCallList() {}

  @Override
  public int getSessionModificationState() {
    return SessionModificationState.NO_REQUEST;
  }

  @Override
  public void upgradeToVideo(@NonNull Context context) {}

  @Override
  public void acceptVideoRequest(@NonNull Context context) {}

  @Override
  public void acceptVideoRequestAsAudio() {}

  @Override
  public void declineVideoRequest() {}

  @Override
  public boolean isTransmitting() {
    return false;
  }

  @Override
  public void stopTransmission() {}

  @Override
  public void resumeTransmission(@NonNull Context context) {}

  @Override
  public void pause() {}

  @Override
  public void unpause() {}

  @Override
  public void setCamera(@Nullable String cameraId) {}

  @Override
  public void setDeviceOrientation(int rotation) {}

  @Override
  public void becomePrimary() {}

  @Override
  public com.android.dialer.logging.VideoTech.Type getVideoTechType() {
    return com.android.dialer.logging.VideoTech.Type.NONE;
  }
}