#include "tsystem.h"

#include "tiio_mp4.h"

#include "trasterimage.h"

#include "timageinfo.h"

#include "tsound.h"

#include "toonz/stage.h"

#include <qstringlist></qstringlist>

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

//

//  TImageWriterMp4

//

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

class TImageWriterMp4 : public TImageWriter {

public:

  int m_frameIndex;

  TImageWriterMp4(const TFilePath &path, int frameIndex, TLevelWriterMp4 *lwg)

      : TImageWriter(path), m_frameIndex(frameIndex), m_lwg(lwg) {

    m_lwg->addRef();

  }

  ~TImageWriterMp4() { m_lwg->release(); }

  bool is64bitOutputSupported() override { return false; }

  void save(const TImageP &img) override { m_lwg->save(img, m_frameIndex); }

private:

  TLevelWriterMp4 *m_lwg;

};

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

//

//  TLevelWriterMp4;

//

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

TLevelWriterMp4::TLevelWriterMp4(const TFilePath &path, TPropertyGroup *winfo)

    : TLevelWriter(path, winfo) {

  if (!m_properties) m_properties = new Tiio::Mp4WriterProperties();

  if (m_properties->getPropertyCount() == 0) {

    m_scale      = 100;

    m_vidQuality = 100;

  } else {

    std::string scale = m_properties->getProperty("Scale")->getValueAsString();

    m_scale           = QString::fromStdString(scale).toInt();

    std::string quality =

        m_properties->getProperty("Quality")->getValueAsString();

    m_vidQuality = QString::fromStdString(quality).toInt();

  }

  ffmpegWriter = new Ffmpeg();

  ffmpegWriter->setPath(m_path);

  if (TSystem::doesExistFileOrLevel(m_path)) TSystem::deleteFile(m_path);

}

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

TLevelWriterMp4::~TLevelWriterMp4() {

  // QProcess createMp4;

  QStringList preIArgs;

  QStringList postIArgs;

  int outLx = m_lx;

  int outLy = m_ly;

  // set scaling

  if (m_scale != 0) {

    outLx = m_lx * m_scale / 100;

    outLy = m_ly * m_scale / 100;

  }

  // ffmpeg doesn't like resolutions that aren't divisible by 2.

  if (outLx % 2 != 0) outLx++;

  if (outLy % 2 != 0) outLy++;

  // calculate quality (bitrate)

  int pixelCount   = m_lx * m_ly;

  int bitRate      = pixelCount / 150;  // crude but gets decent values

  double quality   = m_vidQuality / 100.0;

  double tempRate  = (double)bitRate * quality;

  int finalBitrate = (int)tempRate;

  int crf          = 51 - (m_vidQuality * 51 / 100);

  preIArgs << "-framerate";

  preIArgs << QString::number(m_frameRate);

  postIArgs << "-pix_fmt";

  postIArgs << "yuv420p";

  postIArgs << "-s";

  postIArgs << QString::number(outLx) + "x" + QString::number(outLy);

  postIArgs << "-b";

  postIArgs << QString::number(finalBitrate) + "k";

  ffmpegWriter->runFfmpeg(preIArgs, postIArgs, false, false, true);

  ffmpegWriter->cleanUpFiles();

}

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

TImageWriterP TLevelWriterMp4::getFrameWriter(TFrameId fid) {

  // if (IOError != 0)

  //	throw TImageException(m_path, buildMp4ExceptionString(IOError));

  if (!fid.getLetter().isEmpty()) return TImageWriterP(0);

  int index            = fid.getNumber();

  TImageWriterMp4 *iwg = new TImageWriterMp4(m_path, index, this);

  return TImageWriterP(iwg);

}

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

void TLevelWriterMp4::setFrameRate(double fps) {

  m_frameRate = fps;

  ffmpegWriter->setFrameRate(fps);

}

void TLevelWriterMp4::saveSoundTrack(TSoundTrack *st) {

  ffmpegWriter->saveSoundTrack(st);

}

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

void TLevelWriterMp4::save(const TImageP &img, int frameIndex) {

  TRasterImageP image(img);

  m_lx = image->getRaster()->getLx();

  m_ly = image->getRaster()->getLy();

  ffmpegWriter->createIntermediateImage(img, frameIndex);

}

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

//

//  TImageReaderMp4

//

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

class TImageReaderMp4 final : public TImageReader {

public:

  int m_frameIndex;

  TImageReaderMp4(const TFilePath &path, int index, TLevelReaderMp4 *lra,

                  TImageInfo *info)

      : TImageReader(path), m_lra(lra), m_frameIndex(index), m_info(info) {

    m_lra->addRef();

  }

  ~TImageReaderMp4() { m_lra->release(); }

  TImageP load() override { return m_lra->load(m_frameIndex); }

  TDimension getSize() const { return m_lra->getSize(); }

  TRect getBBox() const { return TRect(); }

  const TImageInfo *getImageInfo() const override { return m_info; }

private:

  TLevelReaderMp4 *m_lra;

  TImageInfo *m_info;

  // not implemented

  TImageReaderMp4(const TImageReaderMp4 &);

  TImageReaderMp4 &operator=(const TImageReaderMp4 &src);

};

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

//

//  TLevelReaderMp4

//

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

TLevelReaderMp4::TLevelReaderMp4(const TFilePath &path) : TLevelReader(path) {

  ffmpegReader = new Ffmpeg();

  ffmpegReader->setPath(m_path);

  ffmpegReader->disablePrecompute();

  ffmpegFileInfo tempInfo = ffmpegReader->getInfo();

  double fps              = tempInfo.m_frameRate;

  m_frameCount            = tempInfo.m_frameCount;

  m_size                  = TDimension(tempInfo.m_lx, tempInfo.m_ly);

  m_lx                    = m_size.lx;

  m_ly                    = m_size.ly;

  // set values

  m_info                   = new TImageInfo();

  m_info->m_frameRate      = fps;

  m_info->m_lx             = m_lx;

  m_info->m_ly             = m_ly;

  m_info->m_bitsPerSample  = 8;

  m_info->m_samplePerPixel = 4;

  m_info->m_dpix           = Stage::standardDpi;

  m_info->m_dpiy           = Stage::standardDpi;

}

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

TLevelReaderMp4::~TLevelReaderMp4() {

  // ffmpegReader->cleanUpFiles();

}

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

TLevelP TLevelReaderMp4::loadInfo() {

  if (m_frameCount == -1) return TLevelP();

  TLevelP level;

  for (int i = 1; i <= m_frameCount; i++) level->setFrame(i, TImageP());

  return level;

}

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

TImageReaderP TLevelReaderMp4::getFrameReader(TFrameId fid) {

  // if (IOError != 0)

  //	throw TImageException(m_path, buildAVIExceptionString(IOError));

  if (!fid.getLetter().isEmpty()) return TImageReaderP(0);

  int index = fid.getNumber();

  TImageReaderMp4 *irm = new TImageReaderMp4(m_path, index, this, m_info);

  return TImageReaderP(irm);

}

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

TDimension TLevelReaderMp4::getSize() { return m_size; }

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

TImageP TLevelReaderMp4::load(int frameIndex) {

  if (!ffmpegFramesCreated) {

    ffmpegReader->getFramesFromMovie();

    ffmpegFramesCreated = true;

  }

  return ffmpegReader->getImage(frameIndex);

}

Tiio::Mp4WriterProperties::Mp4WriterProperties()

    : m_vidQuality("Quality", 1, 100, 90), m_scale("Scale", 1, 100, 100) {

  bind(m_vidQuality);

  bind(m_scale);

}

void Tiio::Mp4WriterProperties::updateTranslation() {

  m_vidQuality.setQStringName(tr("Quality"));

  m_scale.setQStringName(tr("Scale"));

}

// Tiio::Reader* Tiio::makeMp4Reader(){ return nullptr; }

// Tiio::Writer* Tiio::makeMp4Writer(){ return nullptr; }