#include "tsound_t.h"

#include "texception.h"

#include "tthread.h"

#include "tthreadmessage.h"

#include <errno.h></errno.h>

#include <unistd.h></unistd.h>

#include <queue></queue>

#include <set></set>

#include <sdl2 sdl.h=""></sdl2>

using namespace std;

//==============================================================================

namespace {

TThread::Mutex MutexOut;

}

namespace {

struct MyData {

  char *entireFileBuffer;

  int totalPacketCount;

  int fileByteCount;

  // UInt32 maxPacketSize;

  // UInt64 packetOffset;

  int byteOffset;

  bool m_doNotify;

  void *sourceBuffer;

  // AudioConverterRef converter;

  TSoundOutputDeviceImp *imp;

  bool isLooping;

  MyData()

      : entireFileBuffer(0)

      , totalPacketCount(0)

      , fileByteCount(0)

      , /*maxPacketSize(0), packetOffset(0),*/ byteOffset(0)

      , sourceBuffer(0)

      , isLooping(false)

      , imp(0)

      , m_doNotify(true) {}

};

}

class TSoundOutputDeviceImp {

public:

  bool m_isPlaying;

  bool m_looped;

  TSoundTrackFormat m_currentFormat;

  std::set<int> m_supportedRate;</int>

  bool m_opened;

  struct MyData *m_data;

  int m_volume;

  TSoundOutputDeviceImp()

      : m_isPlaying(false)

      , m_looped(false)

      , m_supportedRate()

      , m_opened(false)

      , m_data(NULL)

      , m_volume(SDL_MIX_MAXVOLUME){};

  std::set<tsoundoutputdevicelistener *=""> m_listeners;</tsoundoutputdevicelistener>

  ~TSoundOutputDeviceImp(){};

  bool doOpenDevice(const TSoundTrackFormat &format);

  bool doStopDevice();

  void play(const TSoundTrackP &st, TINT32 s0, TINT32 s1, bool loop,

            bool scrubbing);

};

//-----------------------------------------------------------------------------

namespace {

class PlayCompletedMsg : public TThread::Message {

  std::set<tsoundoutputdevicelistener *=""> m_listeners;</tsoundoutputdevicelistener>

  MyData *m_data;

public:

  PlayCompletedMsg(MyData *data) : m_data(data) {}

  TThread::Message *clone() const { return new PlayCompletedMsg(*this); }

  void onDeliver() {

    if (m_data->imp) {

      if (m_data->m_doNotify == false) return;

      m_data->m_doNotify = false;

      std::set<tsoundoutputdevicelistener *="">::iterator it =</tsoundoutputdevicelistener>

          m_data->imp->m_listeners.begin();

      for (; it != m_data->imp->m_listeners.end(); ++it)

        (*it)->onPlayCompleted();

      if (m_data->imp->m_isPlaying) m_data->imp->doStopDevice();

    }

  }

};

}

#define checkStatus(err)                                                       \

  if (err) {                                                                   \

    printf("Error: 0x%x ->  %s: %d\n", (int)err, __FILE__, __LINE__);          \

    fflush(stdout);                                                            \

  }

extern "C" {

static void sdl_fill_audio(void *udata, Uint8 *stream, int len) {

  TSoundOutputDeviceImp *_this = (TSoundOutputDeviceImp *)udata;

  MyData *myData               = _this->m_data;

  /* Only play if we have data left */

  if (myData == NULL) return;

  {

    // TThread::ScopedLock sl(MutexOut);

    if (myData->imp->m_isPlaying == false) return;

  }

  int audio_len = myData->fileByteCount - myData->byteOffset;

  if (audio_len <= 0) {

    delete[] myData->entireFileBuffer;

    myData->entireFileBuffer = 0;

#if 0

		{

			TThread::ScopedLock sl(MutexOut);

			*(myData->isPlaying) = false;   //questo lo faccio nel main thread

		}

#endif

    PlayCompletedMsg(myData).send();

    return;

  }

  /* Mix as much data as possible */

  len = min(audio_len, len);

  SDL_memset(stream, 0, len);

  SDL_MixAudio(stream, (Uint8 *)myData->entireFileBuffer + myData->byteOffset,

               len, _this->m_volume);

  myData->byteOffset += len;

}

}  // extern "C"

bool TSoundOutputDeviceImp::doOpenDevice(const TSoundTrackFormat &format) {

  SDL_AudioSpec wanted;

  static bool first = true;  // TODO: should be shared with InputDevice

  if (first) {

    SDL_Init(SDL_INIT_AUDIO);

    first = false;

  }

  if (m_opened) {

    SDL_CloseAudio();

    // we'll just reopen right away

  }

  wanted.freq = format.m_sampleRate;

  switch (format.m_bitPerSample) {

  case 8:

    wanted.format = AUDIO_S8;

    break;

  case 16:

    wanted.format = AUDIO_S16;

    break;

  default:

    throw TSoundDeviceException(TSoundDeviceException::UnableOpenDevice,

                                "invalid bits per sample");

    return false;

  }

  wanted.channels = format.m_channelCount; /* 1 = mono, 2 = stereo */

  wanted.samples  = 1024; /* Good low-latency value for callback */

  wanted.callback = sdl_fill_audio;

  wanted.userdata = this;

  /* Open the audio device, forcing the desired format */

  if (SDL_OpenAudio(&wanted, NULL) < 0) {

    std::string msg("Couldn't open audio: ");

    msg += SDL_GetError();

    throw TSoundDeviceException(TSoundDeviceException::UnableOpenDevice, msg);

    return false;

  }

  m_opened = true;

  return m_opened;

}

//==============================================================================

TSoundOutputDevice::TSoundOutputDevice() : m_imp(new TSoundOutputDeviceImp) {

#if 0

	try {

		supportsVolume();

	} catch (TSoundDeviceException &e) {

		throw TSoundDeviceException(e.getType(), e.getMessage());

	}

#endif

}

//------------------------------------------------------------------------------

TSoundOutputDevice::~TSoundOutputDevice() {

  stop();

  close();

}

//------------------------------------------------------------------------------

bool TSoundOutputDevice::installed() { return true; }

//------------------------------------------------------------------------------

bool TSoundOutputDevice::open(const TSoundTrackP &st) {

  if (!m_imp->doOpenDevice(st->getFormat()))

    throw TSoundDeviceException(

        TSoundDeviceException::UnableOpenDevice,

        "Problem to open the output device setting some params");

  return true;

}

//------------------------------------------------------------------------------

bool TSoundOutputDevice::close() {

  stop();

  m_imp->m_opened = false;

  return true;

}

//------------------------------------------------------------------------------

void TSoundOutputDevice::play(const TSoundTrackP &st, TINT32 s0, TINT32 s1,

                              bool loop, bool scrubbing) {

  // TThread::ScopedLock sl(MutexOut);

  int lastSample = st->getSampleCount() - 1;

  notLessThan(0, s0);

  notLessThan(0, s1);

  notMoreThan(lastSample, s0);

  notMoreThan(lastSample, s1);

  if (s0 > s1) {

#ifdef DEBUG

    cout << "s0 > s1; reorder" << endl;

#endif

    swap(s0, s1);

  }

  if (isPlaying()) {

#ifdef DEBUG

    cout << "is playing, stop it!" << endl;

#endif

    stop();

  }

  m_imp->play(st, s0, s1, loop, scrubbing);

}

//------------------------------------------------------------------------------

void TSoundOutputDeviceImp::play(const TSoundTrackP &st, TINT32 s0, TINT32 s1,

                                 bool loop, bool scrubbing) {

  if (!doOpenDevice(st->getFormat())) return;

  MyData *myData = new MyData();

  myData->imp              = this;

  myData->totalPacketCount = s1 - s0;

  myData->fileByteCount    = (s1 - s0) * st->getSampleSize();

  myData->entireFileBuffer = new char[myData->fileByteCount];

  memcpy(myData->entireFileBuffer, st->getRawData() + s0 * st->getSampleSize(),

         myData->fileByteCount);

  //	myData->maxPacketSize = fileASBD.mFramesPerPacket *

  // fileASBD.mBytesPerFrame;

  {

    // TThread::ScopedLock sl(MutexOut);

    m_isPlaying = true;

  }

  myData->isLooping = loop;

  // cout << "total packet count = " << myData->totalPacketCount <

  // cout << "filebytecount " << myData->fileByteCount << endl;

  m_data = myData;

  SDL_PauseAudio(0);

}

//------------------------------------------------------------------------------

bool TSoundOutputDeviceImp::doStopDevice() {

  SDL_PauseAudio(1);

  m_isPlaying = false;

  delete m_data;

  m_data = NULL;

  SDL_CloseAudio();

  m_opened = false;

  return true;

}

//------------------------------------------------------------------------------

void TSoundOutputDevice::stop() {

  // TThread::ScopedLock sl(MutexOut);

  if (m_imp->m_opened == false) return;

  // TThread::ScopedLock sl(MutexOut);

  m_imp->doStopDevice();

}

//------------------------------------------------------------------------------

void TSoundOutputDevice::attach(TSoundOutputDeviceListener *listener) {

  m_imp->m_listeners.insert(listener);

}

//------------------------------------------------------------------------------

void TSoundOutputDevice::detach(TSoundOutputDeviceListener *listener) {

  m_imp->m_listeners.erase(listener);

}

#if 0

//------------------------------------------------------------------------------

double TSoundOutputDevice::getVolume()

{

	if (!m_imp->m_opened)

		m_imp->doOpenDevice();

	double vol = m_volume / SDL_MIX_MAXVOLUME;

	return (vol < 0. ? 0. : vol);

}

//------------------------------------------------------------------------------

bool TSoundOutputDevice::setVolume(double volume)

{

	Float32 vol = volume;

	m_imp->m_volume = (int)(volume * SDL_MIX_MAXVOLUME);

	return true;

}

//------------------------------------------------------------------------------

bool TSoundOutputDevice::supportsVolume()

{

	return true;

}

#endif

//------------------------------------------------------------------------------

bool TSoundOutputDevice::isPlaying() const {

  // TThread::ScopedLock sl(MutexOut);

  // TODO: handle actually queuing items?

  return m_imp->m_isPlaying;

}

//------------------------------------------------------------------------------

bool TSoundOutputDevice::isAllQueuedItemsPlayed() {

  // TThread::ScopedLock sl(MutexOut);

  return m_imp->m_data == NULL;

}

//------------------------------------------------------------------------------

bool TSoundOutputDevice::isLooping() {

  // TThread::ScopedLock sl(MutexOut);

  return m_imp->m_looped;

}

//------------------------------------------------------------------------------

void TSoundOutputDevice::setLooping(bool loop) {

  // TThread::ScopedLock sl(MutexOut);

  m_imp->m_looped = loop;

}

//------------------------------------------------------------------------------

TSoundTrackFormat TSoundOutputDevice::getPreferredFormat(TUINT32 sampleRate,

                                                         int channelCount,

                                                         int bitPerSample) {

  if (bitPerSample > 16) bitPerSample = 16;

  // not sure SDL supports more than 2 channels

  if (channelCount > 2) channelCount = 2;

  TSoundTrackFormat fmt(sampleRate, bitPerSample, channelCount, true);

  return fmt;

}

//------------------------------------------------------------------------------

TSoundTrackFormat TSoundOutputDevice::getPreferredFormat(

    const TSoundTrackFormat &format) {

#if 0

	try {

#endif

  return getPreferredFormat(format.m_sampleRate, format.m_channelCount,

                            format.m_bitPerSample);

#if 0

	}

	catch (TSoundDeviceException &e) {

		throw TSoundDeviceException( e.getType(), e.getMessage());

	}

#endif

}

//==============================================================================

//==============================================================================

//                REGISTRAZIONE

//==============================================================================

//==============================================================================

class TSoundInputDeviceImp {

public:

  // ALport m_port;

  bool m_stopped;

  bool m_isRecording;

  bool m_oneShotRecording;

  long m_recordedSampleCount;

  TSoundTrackFormat m_currentFormat;

  TSoundTrackP m_st;

  std::set<int> m_supportedRate;</int>

  TThread::Executor m_executor;

  TSoundInputDeviceImp()

      : m_stopped(false)

      , m_isRecording(false)

      //   , m_port(NULL)

      , m_oneShotRecording(false)

      , m_recordedSampleCount(0)

      , m_st(0)

      , m_supportedRate(){};

  ~TSoundInputDeviceImp(){};

  bool doOpenDevice(const TSoundTrackFormat &format,

                    TSoundInputDevice::Source devType);

};

bool TSoundInputDeviceImp::doOpenDevice(const TSoundTrackFormat &format,

                                        TSoundInputDevice::Source devType) {

  return true;

}

//==============================================================================

class RecordTask : public TThread::Runnable {

public:

  TSoundInputDeviceImp *m_devImp;

  int m_ByteToSample;

  RecordTask(TSoundInputDeviceImp *devImp, int numByte)

      : TThread::Runnable(), m_devImp(devImp), m_ByteToSample(numByte){};

  ~RecordTask(){};

  void run();

};

void RecordTask::run() {}

//==============================================================================

TSoundInputDevice::TSoundInputDevice() : m_imp(new TSoundInputDeviceImp) {}

//------------------------------------------------------------------------------

TSoundInputDevice::~TSoundInputDevice() {

#if 0

	if(m_imp->m_port)

		alClosePort(m_imp->m_port);

	delete m_imp;

#endif

}

//------------------------------------------------------------------------------

bool TSoundInputDevice::installed() {

#if 0

	if (alQueryValues(AL_SYSTEM, AL_DEFAULT_INPUT, 0, 0, 0, 0) <= 0)

		return false;

#endif

  return true;

}

//------------------------------------------------------------------------------

void TSoundInputDevice::record(const TSoundTrackFormat &format,

                               TSoundInputDevice::Source type) {}

//------------------------------------------------------------------------------

void TSoundInputDevice::record(const TSoundTrackP &st,

                               TSoundInputDevice::Source type) {}

//------------------------------------------------------------------------------

TSoundTrackP TSoundInputDevice::stop() {

  TSoundTrackP st;

  return st;

}

//------------------------------------------------------------------------------

double TSoundInputDevice::getVolume() { return 0.0; }

//------------------------------------------------------------------------------

bool TSoundInputDevice::setVolume(double volume) { return true; }

//------------------------------------------------------------------------------

bool TSoundInputDevice::supportsVolume() { return true; }

//------------------------------------------------------------------------------

TSoundTrackFormat TSoundInputDevice::getPreferredFormat(TUINT32 sampleRate,

                                                        int channelCount,

                                                        int bitPerSample) {

  TSoundTrackFormat fmt;

  return fmt;

}

//------------------------------------------------------------------------------

TSoundTrackFormat TSoundInputDevice::getPreferredFormat(

    const TSoundTrackFormat &format) {

#if 0

	try {

#endif

  return getPreferredFormat(format.m_sampleRate, format.m_channelCount,

                            format.m_bitPerSample);

#if 0

	}

	catch (TSoundDeviceException &e) {

		throw TSoundDeviceException( e.getType(), e.getMessage());

	}

#endif

}

//------------------------------------------------------------------------------

bool TSoundInputDevice::isRecording() { return m_imp->m_isRecording; }