#include "tiio_apng.h"

#include "tsystem.h"

#include "trasterimage.h"

#include "tsound.h"

#include "timageinfo.h"

#include "toonz/stage.h"

#include <qstringlist></qstringlist>

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

//

//  TImageWriterAPng

//

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

class TImageWriterAPng : public TImageWriter {

public:

  int m_frameIndex;

  TImageWriterAPng(const TFilePath &path, int frameIndex, TLevelWriterAPng *lwg)

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

    m_lwg->addRef();

  }

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

  bool is64bitOutputSupported() override { return false; }

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

private:

  TLevelWriterAPng *m_lwg;

};

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

//

//  TLevelWriterAPng;

//

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

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

    : TLevelWriter(path, winfo) {

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

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

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

  TBoolProperty *extPng = (TBoolProperty *)m_properties->getProperty("ExtPng");

  m_extPng              = extPng->getValue();

  TBoolProperty *loop = (TBoolProperty *)m_properties->getProperty("Looping");

  m_looping           = loop->getValue();

  if (m_extPng) {

    m_path = m_path.getParentDir() + TFilePath(m_path.getWideName() + L".png");

  }

  ffmpegWriter = new Ffmpeg();

  ffmpegWriter->setPath(m_path);

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

}

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

TLevelWriterAPng::~TLevelWriterAPng() {

  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++;

  preIArgs << "-framerate";

  preIArgs << QString::number(m_frameRate);

  postIArgs << "-plays";

  postIArgs << (m_looping ? "0" : "1");

  postIArgs << "-f";

  postIArgs << "apng";

  postIArgs << "-s";

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

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

  ffmpegWriter->cleanUpFiles();

}

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

TImageWriterP TLevelWriterAPng::getFrameWriter(TFrameId fid) {

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

  int index             = fid.getNumber();

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

  return TImageWriterP(iwg);

}

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

void TLevelWriterAPng::setFrameRate(double fps) {

  m_frameRate = fps;

  ffmpegWriter->setFrameRate(fps);

}

void TLevelWriterAPng::saveSoundTrack(TSoundTrack *st) {

  ffmpegWriter->saveSoundTrack(st);

}

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

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

  TRasterImageP image(img);

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

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

  ffmpegWriter->createIntermediateImage(img, frameIndex);

}

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

//

//  TImageReaderAPng

//

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

class TImageReaderAPng final : public TImageReader {

public:

  int m_frameIndex;

  TImageReaderAPng(const TFilePath &path, int index, TLevelReaderAPng *lra,

                   TImageInfo *info)

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

    m_lra->addRef();

  }

  ~TImageReaderAPng() { 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:

  TLevelReaderAPng *m_lra;

  TImageInfo *m_info;

  // not implemented

  TImageReaderAPng(const TImageReaderAPng &);

  TImageReaderAPng &operator=(const TImageReaderAPng &src);

};

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

//

//  TLevelReaderAPng

//

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

TLevelReaderAPng::TLevelReaderAPng(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;

}

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

TLevelReaderAPng::~TLevelReaderAPng() {}

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

TLevelP TLevelReaderAPng::loadInfo() {

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

  TLevelP level;

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

  return level;

}

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

TImageReaderP TLevelReaderAPng::getFrameReader(TFrameId fid) {

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

  int index = fid.getNumber();

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

  return TImageReaderP(irm);

}

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

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

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

TImageP TLevelReaderAPng::load(int frameIndex) {

  if (!ffmpegFramesCreated) {

    ffmpegReader->getFramesFromMovie();

    ffmpegFramesCreated = true;

  }

  return ffmpegReader->getImage(frameIndex);

}

Tiio::APngWriterProperties::APngWriterProperties()

    : m_scale("Scale", 1, 100, 100)

    , m_looping("Looping", true)

    , m_extPng("ExtPng", false) {

  bind(m_scale);

  bind(m_looping);

  bind(m_extPng);

}

void Tiio::APngWriterProperties::updateTranslation() {

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

  m_looping.setQStringName(tr("Looping"));

  m_extPng.setQStringName(tr("Write as .png"));

}