/*
 * Copyright (c) 2016, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *     * Neither the name of The Linux Foundation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <map>
#include <vector>

#include "common/audio/inc/qmmf_audio_definitions.h"
#include "common/audio/src/service/qmmf_audio_backend.h"
#include "common/audio/src/service/qmmf_audio_common.h"

namespace qmmf {
namespace common {
namespace audio {

class AudioFrontend {
 public:
  AudioFrontend();
  ~AudioFrontend();

  void RegisterErrorHandler(const AudioErrorHandler& handler);
  void RegisterBufferHandler(const AudioBufferHandler& handler);

  int32_t Connect(AudioHandle* audio_handle);
  int32_t Disconnect(const AudioHandle audio_handle);
  int32_t Configure(const AudioHandle audio_handle,
                    const AudioEndPointType type,
                    const ::std::vector<DeviceId>& devices,
                    const AudioMetadata& metadata);

  int32_t Start(const AudioHandle audio_handle);
  int32_t Stop(const AudioHandle audio_handle, const bool flush);
  int32_t Pause(const AudioHandle audio_handle);
  int32_t Resume(const AudioHandle audio_handle);

  int32_t SendBuffers(const AudioHandle audio_handle,
                      const ::std::vector<AudioBuffer>& buffers);

  int32_t GetLatency(const AudioHandle audio_handle, int32_t* latency);
  int32_t GetBufferSize(const AudioHandle audio_handle, int32_t* buffer_size);
  int32_t SetParam(const AudioHandle audio_handle, const AudioParamType type,
                   const AudioParamData& data);
  int32_t GetRenderedPosition(const AudioHandle audio_handle,
                              uint32_t* frames, uint64_t* time);

 private:
  static const AudioHandle kAudioHandleMax;

  typedef ::std::map<AudioHandle, IAudioBackend*> AudioBackendMap;

  AudioHandle current_handle_;
  AudioErrorHandler error_handler_;
  AudioBufferHandler buffer_handler_;
  AudioBackendMap backends_;

  // disable copy, assignment, and move
  AudioFrontend(const AudioFrontend&) = delete;
  AudioFrontend(AudioFrontend&&) = delete;
  AudioFrontend& operator=(const AudioFrontend&) = delete;
  AudioFrontend& operator=(const AudioFrontend&&) = delete;
};

}; // namespace audio
}; // namespace common
}; // namespace qmmf