#include "toonz/txshlevelcolumn.h"

#include "toonz/txshsimplelevel.h"

#include "toonz/txshcell.h"

#include "toonz/tcolumnfxset.h"

#include "toonz/tcolumnfx.h"

#include "toonz/txshleveltypes.h"

#include "tstream.h"

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

namespace {

TFrameId qstringToFrameId(QString str) {

  if (str.isEmpty() || str == "-1")

    return TFrameId::EMPTY_FRAME;

  else if (str == "-" || str == "-2")

    return TFrameId::NO_FRAME;

  QString regExpStr = QString("^%1$").arg(TFilePath::fidRegExpStr());

  QRegExp rx(regExpStr);

  int pos = rx.indexIn(str);

  if (pos < 0) return TFrameId();

  if (rx.cap(2).isEmpty())

    return TFrameId(rx.cap(1).toInt());

  else

    return TFrameId(rx.cap(1).toInt(), rx.cap(2));

}

}  // namespace

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

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

// TXshLevelColumn

TXshLevelColumn::TXshLevelColumn()

    : m_fx(new TLevelColumnFx())

    //, m_iconId("")

    , m_iconVisible(false) {

  // updateIcon();

  m_fx->addRef();

  m_fx->setColumn(this);

}

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

TXshLevelColumn::~TXshLevelColumn() {

  m_fx->setColumn(0);

  m_fx->release();

  m_fx = 0;

}

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

TXshColumn::ColumnType TXshLevelColumn::getColumnType() const {

  return eLevelType;

}

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

bool TXshLevelColumn::canSetCell(const TXshCell &cell) const {

  if (cell.isEmpty()) return true;

  TXshSimpleLevel *sl = cell.getSimpleLevel();

  if (sl) return (sl->getType() & LEVELCOLUMN_XSHLEVEL);

  return cell.getChildLevel();

}

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

TLevelColumnFx *TXshLevelColumn::getLevelColumnFx() const { return m_fx; }

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

TFx *TXshLevelColumn::getFx() const { return m_fx; }

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

TXshColumn *TXshLevelColumn::clone() const {

  TXshLevelColumn *column = new TXshLevelColumn;

  column->setStatusWord(getStatusWord());

  column->setOpacity(getOpacity());

  column->m_cells = m_cells;

  column->m_first = m_first;

  column->setColorTag(getColorTag());

  column->setColorFilterId(getColorFilterId());

  // column->updateIcon();

  return column;

}

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

void TXshLevelColumn::loadData(TIStream &is) {

  std::string tagName;

  while (is.openChild(tagName)) {

    if (tagName == "status") {

      int status;

      is >> status;

      setStatusWord(status);

      if (status & eCamstandTransparent43) {

        setOpacity(128);

        status = status & ~eCamstandTransparent43;

      }

    } else if (tagName == "camerastand_opacity") {

      int opacity;

      is >> opacity;

      setOpacity((UCHAR)opacity);

    } else if (tagName == "filter_color_id") {

      int id;

      is >> id;

      setColorFilterId(id);

    } else if (tagName == "cells") {

      while (is.openChild(tagName)) {

        if (tagName == "cell") {

          TPersist *p = 0;

          std::string str;

          int row = 1, rowCount = 1, increment = 0;

          TFilePath path;

          is >> row >> rowCount >> p >> str >> increment;

          TFrameId fid = qstringToFrameId(QString::fromStdString(str));

          assert((fid.getLetter().isEmpty() && rowCount >= 0) ||

                 (!fid.getLetter().isEmpty() && rowCount == 1));

          TXshLevel *xshLevel = dynamic_cast<txshlevel *="">(p);</txshlevel>

          if (xshLevel) {

            int fidNumber = fid.getNumber();

            for (int i = 0; i < rowCount; i++) {

              TXshCell cell(xshLevel, fid);

              setCell(row++, cell);

              // rowCount>1 => fid has not letter.

              fidNumber += increment;

              fid = TFrameId(fidNumber);

            }

          }

        } else

          throw TException("TXshLevelColumn, unknown tag(2): " + tagName);

        is.closeChild();

      }

    } else if (tagName == "fx") {

      TPersist *p = 0;

      is >> p;

      if (TLevelColumnFx *lcf = dynamic_cast<tlevelcolumnfx *="">(p)) {</tlevelcolumnfx>

        lcf->addRef();

        if (m_fx) m_fx->release();

        m_fx = lcf;

        lcf->setColumn(this);

      }

    } else if (tagName == "fxnodes")  // per compatibilita' con 1.x e precedenti

    {

      TFxSet fxSet;

      fxSet.loadData(is);

    } else if (loadCellMarks(tagName, is)) {

      // do nothing

    } else

      throw TException("TXshLevelColumn, unknown tag: " + tagName);

    is.closeChild();

  }

}

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

void TXshLevelColumn::saveData(TOStream &os) {

  os.child("status") << getStatusWord();

  if (getOpacity() < 255) os.child("camerastand_opacity") << (int)getOpacity();

  if (getColorFilterId() != 0)

    os.child("filter_color_id") << (int)getColorFilterId();

  int r0, r1;

  if (getRange(r0, r1)) {

    os.openChild("cells");

    for (int r = r0; r <= r1; r++) {

      TXshCell cell = getCell(r);

      if (cell.isEmpty()) continue;

      TFrameId fid = cell.m_frameId;

      int n = 1, inc = 0, dr = fid.getNumber();

      // If fid has not letter save more than one cell and its incrementation;

      // otherwise save one cell.

      if (r < r1 && fid.getLetter().isEmpty()) {

        TXshCell cell2 = getCell(r + 1);

        TFrameId fid2  = cell2.m_frameId;

        if (cell2.m_level.getPointer() == cell.m_level.getPointer() &&

            fid2.getLetter().isEmpty()) {

          inc = cell2.m_frameId.getNumber() - dr;

          n++;

          for (;;) {

            if (r + n > r1) break;

            cell2         = getCell(r + n);

            TFrameId fid2 = cell2.m_frameId;

            if (cell2.m_level.getPointer() != cell.m_level.getPointer() ||

                !fid2.getLetter().isEmpty())

              break;

            if (fid2.getNumber() != dr + n * inc) break;

            n++;

          }

        }

      }

      os.child("cell") << r << n << cell.m_level.getPointer() << fid.expand()

                       << inc;

      r += n - 1;

    }

    os.closeChild();

  }

  os.child("fx") << m_fx;

  // cell marks

  saveCellMarks(os);

}

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

// Used in TCellData::getNumbers

// reservedLevel can be nonzero if the preferences option

// "LinkColumnNameWithLevel" is ON and the column name is the same as some level

// in the scene cast.

bool TXshLevelColumn::setNumbers(int row, int rowCount, const TXshCell cells[],

                                 TXshLevel *reservedLevel) {

  if (m_cells.empty() && !reservedLevel) return false;

  // Check availability.

  // - if source cells are all empty, do nothing

  // - also, if source or target cells contain NO_FRAME, do nothing

  bool isSrcAllEmpty = true;

  for (int i = 0; i < rowCount; i++) {

    // checking target cells

    int currentTgtIndex = row + i - m_first;

    if (currentTgtIndex < m_cells.size()) {

      TXshCell tgtCell = m_cells[currentTgtIndex];

      if (!tgtCell.isEmpty() && tgtCell.m_frameId == TFrameId::NO_FRAME)

        return false;

    }

    // checking source cells

    TXshCell srcCell = cells[i];

    if (!srcCell.isEmpty()) {

      if (srcCell.m_frameId == TFrameId::NO_FRAME) return false;

      isSrcAllEmpty = false;

    }

  }

  if (isSrcAllEmpty) return false;

  // Find a level to input.

  // If the first target cell is empty, search the upper cells, and lower cells

  // and use a level of firsty-found occupied neighbor cell.

  TXshLevelP currentLevel = reservedLevel;

  int tmpIndex            = std::min(row - m_first, (int)m_cells.size() - 1);

  // search upper cells

  if (!currentLevel) {

    while (tmpIndex >= 0) {

      TXshCell tmpCell = m_cells[tmpIndex];

      if (!tmpCell.isEmpty() && tmpCell.m_frameId != TFrameId::NO_FRAME) {

        currentLevel = tmpCell.m_level;

        break;

      }

      tmpIndex--;

    }

  }

  // if not found any level in upper cells, then search the lower cells

  if (!currentLevel) {

    tmpIndex = std::max(row - m_first, 0);

    while (tmpIndex < (int)m_cells.size()) {

      TXshCell tmpCell = m_cells[tmpIndex];

      if (!tmpCell.isEmpty() && tmpCell.m_frameId != TFrameId::NO_FRAME) {

        currentLevel = tmpCell.m_level;

        break;

      }

      tmpIndex++;

    }

    // in the case any level for input could not be found

    if (!currentLevel) return false;

  }

  // Resize the cell container

  int ra   = row;

  int rb   = row + rowCount - 1;

  int c_rb = m_first + m_cells.size() - 1;

  if (row > c_rb) {

    int newCellCount = row - m_first + rowCount;

    m_cells.resize(newCellCount);

  } else if (row < m_first) {

    int delta = m_first - row;

    m_cells.insert(m_cells.begin(), delta, TXshCell());

    m_first = row;

  }

  if (rb > c_rb) {

    for (int i = 0; i < rb - c_rb; ++i) m_cells.push_back(TXshCell());

  }

  // Paste numbers.

  for (int i = 0; i < rowCount; i++) {

    int dstIndex     = row - m_first + i;

    TXshCell dstCell = m_cells[dstIndex];

    TXshCell srcCell = cells[i];

    if (srcCell.isEmpty()) {

      m_cells[dstIndex] = TXshCell();

    } else {

      if (!dstCell.isEmpty()) currentLevel = dstCell.m_level;

      m_cells[dstIndex] = TXshCell(currentLevel, srcCell.m_frameId);

    }

  }

  // Update the cell container.

  while (!m_cells.empty() && m_cells.back().isEmpty()) {

    m_cells.pop_back();

  }

  while (!m_cells.empty() && m_cells.front().isEmpty()) {

    m_cells.erase(m_cells.begin());

    m_first++;

  }

  if (m_cells.empty()) {

    m_first = 0;

  }

  return true;

}

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

PERSIST_IDENTIFIER(TXshLevelColumn, "levelColumn")