// TnzCore includes
#include "tstream.h"

// TnzLib includes
#include "toonz/txshcell.h"
#include "toonz/tcolumnfx.h"
#include "toonz/txshsimplelevel.h"
#include "toonz/txshleveltypes.h"

#include "toonz/txshmeshcolumn.h"

PERSIST_IDENTIFIER(TXshMeshColumn, "meshColumn")

//*******************************************************************************
//    Local namespace
//*******************************************************************************

namespace
{
TFrameId qstringToFrameId(QString str)
{
	if (str.isEmpty() || str == "-1")
		return TFrameId::EMPTY_FRAME;
	else if (str == "-" || str == "-2")
		return TFrameId::NO_FRAME;

	TFrameId fid;

	QString number;
	char letter(0);

	int s, strSize = str.size();
	for (s = 0; s < strSize; ++s) {
		QChar c = str.at(s);

		if (c.isNumber())
			number.append(c);
		else
#if QT_VERSION >= 0x050500
			letter = c.toLatin1();
#else
			letter = c.toAscii();
#endif
	}

	return TFrameId(number.toInt(), letter);
}
}

//*******************************************************************************
//    TXshMeshColumn  implementation
//*******************************************************************************

TXshMeshColumn::TXshMeshColumn()
	: TXshCellColumn() {}

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

TXshColumn *TXshMeshColumn::clone() const
{
	TXshMeshColumn *column = new TXshMeshColumn();

	column->setStatusWord(getStatusWord());
	column->m_cells = m_cells;
	column->m_first = m_first;

	return column;
}

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

bool TXshMeshColumn::canSetCell(const TXshCell &cell) const
{
	TXshSimpleLevel *sl = cell.getSimpleLevel();
	return cell.isEmpty() || (sl && sl->getType() == MESH_XSHLEVEL);
}

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

void TXshMeshColumn::saveData(TOStream &os)
{
	os.child("status") << getStatusWord();
	if (getOpacity() < 255)
		os.child("camerastand_opacity") << (int)getOpacity();

	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 no letter save more than one cell and its increment - otherwise save just one cell
				if (r < r1 && fid.getLetter() == 0) {
					TXshCell cell2 = getCell(r + 1);
					TFrameId fid2 = cell2.m_frameId;

					if (cell2.m_level.getPointer() == cell.m_level.getPointer() && fid2.getLetter() == 0) {
						inc = cell2.m_frameId.getNumber() - dr;
						for (++n;; ++n) {
							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() != 0)
								break;

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

				os.child("cell") << r << n << cell.m_level.getPointer() << fid.expand() << inc;
				r += n - 1;
			}
		}
		os.closeChild();
	}
}

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

void TXshMeshColumn::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;
			}

			is.closeChild();
		} else if (tagName == "camerastand_opacity") {
			int opacity;
			is >> opacity;
			setOpacity((UCHAR)opacity);

			is.closeChild();
		} else if (tagName == "cells") {
			while (is.openChild(tagName)) {
				if (tagName == "cell") {
					TPersist *p = 0;
					QString str;

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

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

					TFrameId fid = qstringToFrameId(str);
					assert((fid.getLetter() == 0 && rowCount >= 0) || (fid.getLetter() != 0 && rowCount == 1));

					TXshLevel *xshLevel = dynamic_cast<TXshLevel *>(p);
					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);
						}
					}

					is.closeChild();
				} else
					is.skipCurrentTag();
			}

			is.closeChild();
		} else
			is.skipCurrentTag();
	}
}