#include "tiio_sprite.h"

#include "../toonz/tapp.h"

#include "tsystem.h"

#include "tsound.h"

#include <qprocess></qprocess>

#include <qdir></qdir>

#include <qtgui qimage=""></qtgui>

#include <qstringlist></qstringlist>

#include <qpainter></qpainter>

#include <qtextstream></qtextstream>

#include "toonz/preferences.h"

#include "toonz/toonzfolders.h"

#include "trasterimage.h"

#include "timageinfo.h"

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

//

//  TImageWriterSprite

//

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

class TImageWriterSprite : public TImageWriter {

public:

  int m_frameIndex;

  TImageWriterSprite(const TFilePath &path, int frameIndex,

                     TLevelWriterSprite *lwg)

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

    m_lwg->addRef();

  }

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

  bool is64bitOutputSupported() override { return false; }

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

private:

  TLevelWriterSprite *m_lwg;

};

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

//

//  TLevelWriterSprite;

//

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

TLevelWriterSprite::TLevelWriterSprite(const TFilePath &path,

                                       TPropertyGroup *winfo)

    : TLevelWriter(path, winfo) {

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

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

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

  std::string topPadding =

      m_properties->getProperty("Top Padding")->getValueAsString();

  m_topPadding = QString::fromStdString(topPadding).toInt();

  std::string bottomPadding =

      m_properties->getProperty("Bottom Padding")->getValueAsString();

  m_bottomPadding = QString::fromStdString(bottomPadding).toInt();

  std::string leftPadding =

      m_properties->getProperty("Left Padding")->getValueAsString();

  m_leftPadding = QString::fromStdString(leftPadding).toInt();

  std::string rightPadding =

      m_properties->getProperty("Right Padding")->getValueAsString();

  m_rightPadding = QString::fromStdString(rightPadding).toInt();

  m_format       = QString::fromStdWString(

      ((TEnumProperty *)(m_properties->getProperty("Format")))->getValue());

  TBoolProperty *trim =

      (TBoolProperty *)m_properties->getProperty("Trim Empty Space");

  m_trim = trim->getValue();

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

}

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

TLevelWriterSprite::~TLevelWriterSprite() {

  int finalWidth    = m_right - m_left + 1;

  int finalHeight   = m_bottom - m_top + 1;

  int resizedWidth  = finalWidth * m_scale / 100;

  int resizedHeight = finalHeight * m_scale / 100;

  for (QImage *image : m_images) {

    QImage copy = image->copy(m_left, m_top, finalWidth, finalHeight);

    if (m_scale != 100) {

      int width  = (copy.width() * m_scale) / 100;

      int height = (copy.height() * m_scale) / 100;

      copy       = copy.scaled(width, height);

    }

    m_imagesResized.push_back(copy);

  }

  for (QImage *image : m_images) {

    delete image;

  }

  m_images.clear();

  int horizDim          = 1;

  int vertDim           = 1;

  int vertPadding       = m_topPadding + m_bottomPadding;

  int horizPadding      = m_leftPadding + m_rightPadding;

  int totalVertPadding  = 0;

  int totalHorizPadding = 0;

  int spriteSheetWidth;

  int spriteSheetHeight;

  if (m_format == "Grid") {

    // Calculate Grid Size

    while (horizDim * horizDim < m_imagesResized.size()) horizDim++;

    totalHorizPadding = horizDim * horizPadding;

    spriteSheetWidth  = horizDim * resizedWidth + totalHorizPadding;

    vertDim           = horizDim;

    // Figure out if there is one row too many (Such as 6 images needs 3 x 2 grid)

    if (vertDim * vertDim - vertDim >= m_imagesResized.size()) {

      vertDim          = vertDim - 1;

    }

    totalVertPadding = vertDim * vertPadding;

    spriteSheetHeight = vertDim * resizedHeight + totalVertPadding;

  } else if (m_format == "Vertical") {

    spriteSheetWidth  = resizedWidth + horizPadding;

    spriteSheetHeight = m_imagesResized.size() * (resizedHeight + vertPadding);

    vertDim           = m_imagesResized.size();

  } else if (m_format == "Horizontal") {

    spriteSheetWidth  = m_imagesResized.size() * (resizedWidth + horizPadding);

    spriteSheetHeight = resizedHeight + vertPadding;

    horizDim = m_imagesResized.size();

  }

  QImage spriteSheet =

      QImage(spriteSheetWidth, spriteSheetHeight, QImage::Format_ARGB32);

  spriteSheet.fill(qRgba(0, 0, 0, 0));

  QPainter painter;

  painter.begin(&spriteSheet);

  int row    = 0;

  int column = 0;

  int rowPadding;

  int columnPadding;

  int currentImage = 0;

  while (row < vertDim) {

    while (column < horizDim) {

      rowPadding    = m_topPadding;

      columnPadding = m_leftPadding;

      rowPadding += row * vertPadding;

      columnPadding += column * horizPadding;

      painter.drawImage(column * resizedWidth + columnPadding,

                        row * resizedHeight + rowPadding,

                        m_imagesResized[currentImage]);

      currentImage++;

      column++;

      if (currentImage >= m_imagesResized.size()) break;

    }

    column = 0;

    row++;

    if (currentImage >= m_imagesResized.size()) break;

  }

  painter.end();

  QString path = m_path.getQString();

  path         = path.replace(".spritesheet", ".png");

  spriteSheet.save(path, "PNG", -1);

  path = path.replace(".png", ".txt");

  QFile file(path);

  file.open(QIODevice::WriteOnly | QIODevice::Text);

  QTextStream out(&file);

  out << "Total Images: " << m_imagesResized.size() << "\n";

  out << "Individual Image Width: " << resizedWidth << "\n";

  out << "Individual Image Height: " << resizedHeight << "\n";

  out << "Individual Image Width with Padding: " << resizedWidth + horizPadding

      << "\n";

  out << "Individual Image Height with Padding: " << resizedHeight + vertPadding

      << "\n";

  out << "Images Across: " << horizDim << "\n";

  out << "Images Down : " << vertDim << "\n";

  out << "Top Padding: " << m_topPadding << "\n";

  out << "Bottom Padding: " << m_bottomPadding << "\n";

  out << "Left Padding: " << m_leftPadding << "\n";

  out << "Right Padding: " << m_rightPadding << "\n";

  out << "Horizontal Space Between Images: " << horizPadding << "\n";

  out << "Vertical Space Between Images: " << vertPadding << "\n";

  file.close();

  m_imagesResized.clear();

}

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

TImageWriterP TLevelWriterSprite::getFrameWriter(TFrameId fid) {

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

  int index               = fid.getNumber();

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

  return TImageWriterP(iwg);

}

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

void TLevelWriterSprite::setFrameRate(double fps) {}

void TLevelWriterSprite::saveSoundTrack(TSoundTrack *st) {}

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

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

  m_frameIndexOrder.push_back(frameIndex);

  std::sort(m_frameIndexOrder.begin(), m_frameIndexOrder.end());

  TRasterImageP tempImage(img);

  TRasterImage *image = (TRasterImage *)tempImage->cloneImage();

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

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

  int m_bpp      = image->getRaster()->getPixelSize();

  int totalBytes = m_lx * m_ly * m_bpp;

  image->getRaster()->yMirror();

  // lock raster to get data

  image->getRaster()->lock();

  void *buffin = image->getRaster()->getRawData();

  assert(buffin);

  void *buffer = malloc(totalBytes);

  memcpy(buffer, buffin, totalBytes);

  image->getRaster()->unlock();

  // create QImage save format

  QString m_intermediateFormat = "png";

  QByteArray ba                = m_intermediateFormat.toUpper().toLatin1();

  const char *format           = ba.data();

  QImage *qi = new QImage((uint8_t *)buffer, m_lx, m_ly, QImage::Format_ARGB32);

  int l = qi->width(), r = 0, t = qi->height(), b = 0;

  if (m_trim) {

    for (int y = 0; y < qi->height(); ++y) {

      QRgb *row      = (QRgb *)qi->scanLine(y);

      bool rowFilled = false;

      for (int x = 0; x < qi->width(); ++x) {

        if (qAlpha(row[x])) {

          rowFilled = true;

          r         = std::max(r, x);

          if (l > x) {

            l = x;

            x = r;

          }

        }

      }

      if (rowFilled) {

        t = std::min(t, y);

        b = y;

      }

    }

  } else {

    l = 0;

    r = qi->width() - 1;

    t = 0;

    b = qi->height() - 1;

  }

  if (m_firstPass) {

    m_firstPass = false;

    m_left      = l;

    m_right     = r;

    m_top       = t;

    m_bottom    = b;

  } else {

    if (l < m_left) m_left     = l;

    if (r > m_right) m_right   = r;

    if (t < m_top) m_top       = t;

    if (b > m_bottom) m_bottom = b;

  }

  QImage *newQi = new QImage(m_lx, m_ly, QImage::Format_ARGB32);

  newQi->fill(qRgba(0, 0, 0, 0));

  QPainter painter(newQi);

  painter.drawImage(QPoint(0, 0), *qi);

  // Make sure to order the images according to their frame index

  // Not just what comes out first

  std::vector<int>::iterator it;</int>

  it = find(m_frameIndexOrder.begin(), m_frameIndexOrder.end(), frameIndex);

  int pos = std::distance(m_frameIndexOrder.begin(), it);

  m_images.insert(m_images.begin() + pos, newQi);

  delete image;

  delete qi;

  free(buffer);

}

Tiio::SpriteWriterProperties::SpriteWriterProperties()

    : m_topPadding("Top Padding", 0, 100, 0)

    , m_bottomPadding("Bottom Padding", 0, 100, 0)

    , m_leftPadding("Left Padding", 0, 100, 0)

    , m_rightPadding("Right Padding", 0, 100, 0)

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

    , m_format("Format")

    , m_trim("Trim Empty Space", true) {

  m_format.addValue(L"Grid");

  m_format.addValue(L"Vertical");

  m_format.addValue(L"Horizontal");

  m_format.setValue(L"Grid");

  bind(m_format);

  bind(m_topPadding);

  bind(m_bottomPadding);

  bind(m_leftPadding);

  bind(m_rightPadding);

  bind(m_scale);

  bind(m_trim);

}

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

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