/*
 *  Copyright 2018 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "api/create_peerconnection_factory.h"

#include <memory>
#include <utility>

#include "api/audio/audio_device.h"
#include "api/audio/audio_mixer.h"
#include "api/audio/audio_processing.h"
#include "api/audio/builtin_audio_processing_builder.h"
#include "api/audio_codecs/audio_decoder_factory.h"
#include "api/audio_codecs/audio_encoder_factory.h"
#include "api/create_modular_peer_connection_factory.h"
#include "api/enable_media.h"
#include "api/environment/environment_factory.h"
#include "api/field_trials_view.h"
#include "api/peer_connection_interface.h"
#include "api/rtc_event_log/rtc_event_log_factory.h"
#include "api/scoped_refptr.h"
#include "api/video_codecs/video_decoder_factory.h"
#include "api/video_codecs/video_encoder_factory.h"
#include "rtc_base/system/ignore_warnings.h"
#include "rtc_base/thread.h"

namespace webrtc {

namespace {

scoped_refptr<PeerConnectionFactoryInterface> CreateFactory(
    Thread* network_thread,
    Thread* worker_thread,
    Thread* signaling_thread,
    scoped_refptr<AudioDeviceModule> default_adm,
    scoped_refptr<AudioEncoderFactory> audio_encoder_factory,
    scoped_refptr<AudioDecoderFactory> audio_decoder_factory,
    std::unique_ptr<VideoEncoderFactory> video_encoder_factory,
    std::unique_ptr<VideoDecoderFactory> video_decoder_factory,
    scoped_refptr<AudioMixer> audio_mixer,
    scoped_refptr<AudioProcessing> audio_processing,
    std::unique_ptr<AudioFrameProcessor> audio_frame_processor,
    std::unique_ptr<FieldTrialsView> field_trials) {
  PeerConnectionFactoryDependencies dependencies;
  dependencies.network_thread = network_thread;
  // The deprecated CreatePeerConnectionFactory overload still forwards the
  // worker thread supplied by the caller, so that such configurations keep
  // being diagnosed.
  RTC_PUSH_IGNORING_WDEPRECATED_DECLARATIONS()
  dependencies.worker_thread = worker_thread;
  RTC_POP_IGNORING_WDEPRECATED_DECLARATIONS()
  dependencies.signaling_thread = signaling_thread;
  dependencies.event_log_factory = std::make_unique<RtcEventLogFactory>();
  dependencies.env = CreateEnvironment(std::move(field_trials));

  if (network_thread) {
    // TODO(bugs.webrtc.org/13145): Add an SocketFactory* argument.
    dependencies.socket_factory = network_thread->socketserver();
  }
  dependencies.adm = std::move(default_adm);
  dependencies.audio_encoder_factory = std::move(audio_encoder_factory);
  dependencies.audio_decoder_factory = std::move(audio_decoder_factory);
  dependencies.audio_frame_processor = std::move(audio_frame_processor);
  if (audio_processing != nullptr) {
    dependencies.audio_processing_builder =
        CustomAudioProcessing(std::move(audio_processing));
  } else {
#ifndef WEBRTC_EXCLUDE_AUDIO_PROCESSING_MODULE
    dependencies.audio_processing_builder =
        std::make_unique<BuiltinAudioProcessingBuilder>();
#endif
  }
  dependencies.audio_mixer = std::move(audio_mixer);
  dependencies.video_encoder_factory = std::move(video_encoder_factory);
  dependencies.video_decoder_factory = std::move(video_decoder_factory);
  EnableMedia(dependencies);

  return CreateModularPeerConnectionFactory(std::move(dependencies));
}

}  // namespace

scoped_refptr<PeerConnectionFactoryInterface> CreatePeerConnectionFactory(
    Thread* network_thread,
    Thread* signaling_thread,
    scoped_refptr<AudioDeviceModule> default_adm,
    scoped_refptr<AudioEncoderFactory> audio_encoder_factory,
    scoped_refptr<AudioDecoderFactory> audio_decoder_factory,
    std::unique_ptr<VideoEncoderFactory> video_encoder_factory,
    std::unique_ptr<VideoDecoderFactory> video_decoder_factory,
    scoped_refptr<AudioMixer> audio_mixer,
    scoped_refptr<AudioProcessing> audio_processing,
    std::unique_ptr<AudioFrameProcessor> audio_frame_processor,
    std::unique_ptr<FieldTrialsView> field_trials) {
  return CreateFactory(
      network_thread, /*worker_thread=*/nullptr, signaling_thread,
      std::move(default_adm), std::move(audio_encoder_factory),
      std::move(audio_decoder_factory), std::move(video_encoder_factory),
      std::move(video_decoder_factory), std::move(audio_mixer),
      std::move(audio_processing), std::move(audio_frame_processor),
      std::move(field_trials));
}

scoped_refptr<PeerConnectionFactoryInterface> CreatePeerConnectionFactory(
    Thread* network_thread,
    Thread* worker_thread,
    Thread* signaling_thread,
    scoped_refptr<AudioDeviceModule> default_adm,
    scoped_refptr<AudioEncoderFactory> audio_encoder_factory,
    scoped_refptr<AudioDecoderFactory> audio_decoder_factory,
    std::unique_ptr<VideoEncoderFactory> video_encoder_factory,
    std::unique_ptr<VideoDecoderFactory> video_decoder_factory,
    scoped_refptr<AudioMixer> audio_mixer,
    scoped_refptr<AudioProcessing> audio_processing,
    std::unique_ptr<AudioFrameProcessor> audio_frame_processor,
    std::unique_ptr<FieldTrialsView> field_trials) {
  return CreateFactory(
      network_thread, worker_thread, signaling_thread, std::move(default_adm),
      std::move(audio_encoder_factory), std::move(audio_decoder_factory),
      std::move(video_encoder_factory), std::move(video_decoder_factory),
      std::move(audio_mixer), std::move(audio_processing),
      std::move(audio_frame_processor), std::move(field_trials));
}

}  // namespace webrtc