#include "toonz/cleanupparameters.h"
#include "tstream.h"
#include "texception.h"
#include "toonz/toonzscene.h"
#include "toonz/sceneproperties.h"
#include "toonz/txshleveltypes.h"
#include "tsystem.h"
#include "tenv.h"
#include "tconvert.h"
#include "cleanuppalette.h"
#include "tpalette.h"

#ifdef _WIN32
#pragma warning(disable : 4996)
#endif

using namespace CleanupTypes;

#define FDG_VERSION_FILE "VERSION_1.0"

CleanupParameters CleanupParameters::GlobalParameters;
CleanupParameters CleanupParameters::LastSavedParameters;
//=========================================================

namespace
{

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

class FdgManager
{ // singleton

	std::map<std::string, FDG_INFO> m_infos;

	void loadFieldGuideInfo();
	FdgManager() { loadFieldGuideInfo(); }
public:
	static FdgManager *instance()
	{
		static FdgManager _instance;
		return &_instance;
	}

	const FDG_INFO *getFdg(std::string name) const
	{
		std::map<std::string, FDG_INFO>::const_iterator it;
		it = m_infos.find(name);
		if (it == m_infos.end())
			return 0;
		else
			return &it->second;
	}

	void getFdgNames(std::vector<std::string> &names) const
	{
		std::map<std::string, FDG_INFO>::const_iterator it;
		for (it = m_infos.begin(); it != m_infos.end(); ++it)
			names.push_back(it->first);
	}
};

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

#define REMOVE_CR(s)                                 \
	{                                                \
		while (*(s) && *(s) != '\n' && *(s) != '\r') \
			(s)++;                                   \
		*(s) = '\0';                                 \
	}

#define SKIP_BLANKS(s)                                \
	{                                                 \
		while (*(s) && (*(s) == ' ' || *(s) == '\t')) \
			(s)++;                                    \
	}

#define STR_EQ(s1, s2) (!strcmp((s1), (s2)))

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

void FdgManager::loadFieldGuideInfo()
{
	FILE *fp;
	char *s, buffer[256], label[100], arg[100];
	int i, version = 0, cnt;

	try {
		TFilePathSet fps = TSystem::readDirectory(TEnv::getConfigDir() + "fdg", false);
		for (TFilePathSet::iterator it = fps.begin(); it != fps.end(); ++it) {
			TFilePath fname = *it;
			if (fname.getType() != "fdg")
				continue;
			fp = fopen(::to_string(fname.getWideString()).c_str(), "r");
			if (!fp)
				continue;
			FDG_INFO fdg_info;

			//memset(&fdg_info,0, sizeof(FDG_INFO));

			fdg_info.dots.resize(3);

			cnt = 0;
			while (fgets(buffer, 256, fp)) {
				s = buffer;
				if (*s == '#' || *s == '*')
					continue;
				REMOVE_CR(s)
				s = buffer;
				SKIP_BLANKS(s)
				if (!*s)
					continue;
				for (i = 0; *s && *s != ' ' && *s != '\t'; i++, s++)
					label[i] = *s;
				label[i] = '\0';
				SKIP_BLANKS(s)
				for (i = 0; *s && *s != ' ' && *s != '\t'; i++, s++)
					arg[i] = *s;
				arg[i] = '\0';

				/* suppongo ci siano sempre 3 dots */

				if (STR_EQ(label, FDG_VERSION_FILE))
					version = 1;
				else if (STR_EQ(label, "CTRX"))
					sscanf(arg, "%lf", &fdg_info.ctr_x), fdg_info.ctr_type = 1;
				else if (STR_EQ(label, "CTRY"))
					sscanf(arg, "%lf", &fdg_info.ctr_y), fdg_info.ctr_type = 1;
				else if (STR_EQ(label, "ANGLE"))
					sscanf(arg, "%lf", &fdg_info.ctr_angle), fdg_info.ctr_type = 1;
				else if (STR_EQ(label, "SKEW"))
					sscanf(arg, "%lf", &fdg_info.ctr_skew), fdg_info.ctr_type = 1;
				else if (STR_EQ(label, "HOLE")) {
					sscanf(arg, "%d", &cnt);
					if (cnt >= (int)fdg_info.dots.size()) {
						// tmsg_error("load field guide info error: bad hole number");
						break;
						//        return FALSE;
					}
				} else if (STR_EQ(label, "X0"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].x1);
				else if (STR_EQ(label, "Y0"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].y1);
				else if (STR_EQ(label, "X1"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].x2);
				else if (STR_EQ(label, "Y1"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].y2);
				else if (STR_EQ(label, "X"))
					sscanf(arg, "%f", &fdg_info.dots[cnt].x);
				else if (STR_EQ(label, "Y"))
					sscanf(arg, "%f", &fdg_info.dots[cnt].y);
				else if (STR_EQ(label, "XSIZE"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].lx);
				else if (STR_EQ(label, "YSIZE"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].ly);
				else if (STR_EQ(label, "AREA"))
					sscanf(arg, "%d", &fdg_info.dots[cnt].area);
				else if (STR_EQ(label, "END")) {
				} else if (STR_EQ(label, "DIST_CTR_TO_CTR_HOLE"))
					sscanf(arg, "%lf", &fdg_info.dist_ctr_to_ctr_hole);
				else if (STR_EQ(label, "DIST_CTR_HOLE_TO_EDGE"))
					sscanf(arg, "%lf", &fdg_info.dist_ctr_hole_to_edge);
			}

			fclose(fp);
			if (!fdg_info.ctr_type && version != 1) {
				// tmsg_error("load field guide info: bad file or old version");
				// return FALSE;
			} else {
				fdg_info.m_name = fname.getName();
				m_infos[fdg_info.m_name] = fdg_info;
			}
		}
	} catch (...) {
	}
	//return TRUE;
}

} // namespace

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

CleanupParameters::CleanupParameters()
	: m_autocenterType(AUTOCENTER_NONE), m_pegSide(PEGS_BOTTOM), m_fdgInfo(), m_rotate(0), m_flipx(false), m_flipy(false), m_offx(0), m_offy(0)
	  //, m_scale(1)
	  ,
	  m_lineProcessingMode(lpGrey), m_noAntialias(false), m_postAntialias(false), m_despeckling(2), m_aaValue(70), m_closestField(10.), m_sharpness(90.), m_autoAdjustMode(AUTO_ADJ_NONE), m_transparencyCheckEnabled(false), m_colors(), m_path(), m_cleanupPalette(createStandardCleanupPalette()), m_camera(), m_dirtyFlag(false)
	  //, m_resName("")
	  ,
	  m_offx_lock(false), m_offy_lock(false)
{
}

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

bool CleanupParameters::setFdgByName(std::string name)
{
	const FDG_INFO *info = FdgManager::instance()->getFdg(name);
	if (info) {
		m_fdgInfo = *info;
		return true;
	} else {
		m_fdgInfo = FDG_INFO();
		return false;
	}
}

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

void CleanupParameters::getFdgNames(std::vector<std::string> &names)
{
	FdgManager::instance()->getFdgNames(names);
}

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

TFilePath CleanupParameters::getPath(ToonzScene *scene) const
{
	if (m_path == TFilePath()) {
		int levelType = (m_lineProcessingMode != lpNone) ? TZP_XSHLEVEL : OVL_XSHLEVEL;
		TFilePath fp = scene->getDefaultLevelPath(levelType);
		return fp.getParentDir();
	} else
		return scene->decodeSavePath(m_path);
}

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

void CleanupParameters::setPath(ToonzScene *scene, TFilePath fp)
{
	if (fp == scene->getDefaultLevelPath(TZP_XSHLEVEL).getParentDir())
		m_path = TFilePath();
	else
		m_path = scene->codeSavePath(fp);
}

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

void CleanupParameters::getOutputImageInfo(
	TDimension &outDim, double &outDpiX, double &outDpiY) const
{
	double lq_nozoom, lp_nozoom;
	double zoom_factor;

	// Retrieve camera infos
	const TDimensionD &cameraSize = m_camera.getSize();
	const TDimension &cameraRes = m_camera.getRes();

	// Camera resolution
	lp_nozoom = cameraRes.lx;
	lq_nozoom = cameraRes.ly;

	// Zoom factor due to the 'closest field' parameter
	if (m_closestField < cameraSize.lx)
		zoom_factor = cameraSize.lx / m_closestField;
	else
		zoom_factor = 1.0;

	// Output image resolution (considering the closest field)
	// apart from any rotation (eg m_parameters.m_rotate == 90 or 270)
	outDim.lx = troundp(zoom_factor * lp_nozoom);
	outDim.ly = troundp(zoom_factor * lq_nozoom);

	// output image dpi
	outDpiX = zoom_factor * cameraRes.lx / cameraSize.lx;
	outDpiY = zoom_factor * cameraRes.ly / cameraSize.ly;
}

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

void CleanupParameters::assign(const CleanupParameters *param, bool clonePalette)
{
	//m_resName        = param->m_resName;
	m_camera = param->m_camera;
	m_autocenterType = param->m_autocenterType;
	m_pegSide = param->m_pegSide;
	m_fdgInfo = param->m_fdgInfo;
	m_rotate = param->m_rotate;
	m_flipx = param->m_flipx;
	m_flipy = param->m_flipy;
	//m_scale          = param->m_scale;
	m_offx = param->m_offx;
	m_offy = param->m_offy;
	m_closestField = param->m_closestField;
	m_autoAdjustMode = param->m_autoAdjustMode;
	m_sharpness = param->m_sharpness;
	m_path = param->m_path;
	m_colors = param->m_colors;
	m_dirtyFlag = param->m_dirtyFlag;
	m_transparencyCheckEnabled = param->m_transparencyCheckEnabled;
	m_lineProcessingMode = param->m_lineProcessingMode;
	m_noAntialias = param->m_noAntialias;
	m_postAntialias = param->m_postAntialias;
	m_despeckling = param->m_despeckling;
	m_aaValue = param->m_aaValue;

	//In modern Toonz scenes, there always is a cleanup palette.
	//In older Toonz scenes, it may be missing. In this case, leave the current one.
	if (clonePalette && param->m_cleanupPalette)
		m_cleanupPalette = param->m_cleanupPalette->clone();

	m_offx_lock = param->m_offx_lock;
	m_offy_lock = param->m_offy_lock;
}

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

void CleanupParameters::saveData(TOStream &os) const
{
	CleanupParameters::LastSavedParameters.assign(this);

	os.openChild("cleanupCamera");
	m_camera.saveData(os);
	os.closeChild();

	os.openChild("cleanupPalette");
	m_cleanupPalette->saveData(os);
	os.closeChild();

	std::map<std::string, std::string> attr;
	if (m_autocenterType != AUTOCENTER_NONE) {
		attr.clear();
		attr["type"] = std::to_string(m_autocenterType);
		attr["pegHoles"] = std::to_string(m_pegSide);
		os.openCloseChild("autoCenter", attr);
	}

	if (m_flipx || m_flipy || m_rotate != 0 //|| m_scale!=1
		|| m_offx != 0 || m_offy != 0) {
		attr.clear();
		std::string flip = std::string(m_flipx ? "x" : "") + std::string(m_flipy ? "y" : "");
		if (flip != "")
			attr["flip"] = flip;
		if (m_rotate != 0)
			attr["rotate"] = std::to_string(m_rotate);
		if (m_offx != 0.0)
			attr["xoff"] = std::to_string(m_offx);
		if (m_offy != 0.0)
			attr["yoff"] = std::to_string(m_offy);
		os.openCloseChild("transform", attr);
	}

	if (m_lineProcessingMode != lpNone) {
		attr.clear();
		attr["sharpness"] = std::to_string(m_sharpness);
		attr["autoAdjust"] = std::to_string(m_autoAdjustMode);
		attr["mode"] = (m_lineProcessingMode == lpGrey ? "grey" : "color");
		os.openCloseChild("lineProcessing", attr);
	}
	if (m_noAntialias) {
		attr.clear();
		os.openCloseChild("noAntialias", attr);
	}
	if (m_postAntialias) {
		attr.clear();
		os.openCloseChild("MLAA", attr);
	}
	attr.clear();
	attr["value"] = std::to_string(m_despeckling);
	os.openCloseChild("despeckling", attr);
	attr.clear();
	attr["value"] = std::to_string(m_aaValue);
	os.openCloseChild("aaValue", attr);
	attr.clear();
	attr["value"] = std::to_string(m_closestField);
	os.openCloseChild("closestField", attr);
	attr.clear();
	attr["name"] = m_fdgInfo.m_name;
	os.openCloseChild("fdg", attr);
	attr.clear();
	if (m_path != TFilePath())
		os.child("path") << m_path;
}

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

void CleanupParameters::loadData(TIStream &is, bool globalParams)
{
	if (globalParams) {
		CleanupParameters cp;
		assign(&cp);
	}

	std::string tagName;
	m_lineProcessingMode = lpNone;
	m_noAntialias = false;
	m_postAntialias = false;

	while (is.matchTag(tagName)) {
		if (tagName == "cleanupPalette") {
			m_cleanupPalette->loadData(is);
			m_cleanupPalette->setIsCleanupPalette(true);
			is.closeChild();
		} else if (tagName == "cleanupCamera") {
			m_camera.loadData(is);
			is.closeChild();
		} else if (tagName == "autoCenter") {
			m_autocenterType = AUTOCENTER_FDG;
			std::string s = is.getTagAttribute("type");
			if (s != "" && isInt(s))
				m_autocenterType = (AUTOCENTER_TYPE)std::stoi(s);
			s = is.getTagAttribute("pegHoles");
			if (s != "" && isInt(s))
				m_pegSide = (PEGS_SIDE)std::stoi(s);
		} else if (tagName == "transform") {
			std::string s = is.getTagAttribute("flip");
			m_flipx = (s.find("x") != std::string::npos);
			m_flipy = (s.find("y") != std::string::npos);
			s = is.getTagAttribute("rotate");
			if (s != "" && isInt(s))
				m_rotate = std::stoi(s);
			s = is.getTagAttribute("xoff");
			if (s != "" && isDouble(s))
				m_offx = std::stod(s);
			s = is.getTagAttribute("yoff");
			if (s != "" && isDouble(s))
				m_offy = std::stod(s);
		} else if (tagName == "lineProcessing") {
			m_lineProcessingMode = lpGrey;
			std::string s = is.getTagAttribute("sharpness");
			if (s != "" && isDouble(s))
				m_sharpness = std::stod(s);
			s = is.getTagAttribute("autoAdjust");
			if (s != "" && isDouble(s))
				m_autoAdjustMode = (CleanupTypes::AUTO_ADJ_MODE)std::stoi(s);
			s = is.getTagAttribute("mode");
			if (s != "" && s == "color")
				m_lineProcessingMode = lpColor;
		} else if (tagName == "despeckling") {
			std::string s = is.getTagAttribute("value");
			if (s != "" && isInt(s))
				m_despeckling = std::stoi(s);
		} else if (tagName == "aaValue") {
			std::string s = is.getTagAttribute("value");
			if (s != "" && isInt(s))
				m_aaValue = std::stoi(s);
		} else if (tagName == "noAntialias")
			m_noAntialias = true;
		else if (tagName == "MLAA")
			m_postAntialias = true;
		else if (tagName == "closestField") {
			std::string s = is.getTagAttribute("value");
			if (s != "" && isDouble(s))
				m_closestField = std::stod(s);
		} else if (tagName == "fdg") {
			std::string s = is.getTagAttribute("name");
			if (s != "")
				setFdgByName(s);
		} else if (tagName == "path") {
			is >> m_path;
			is.closeChild();
		} else
			is.skipCurrentTag();
	}

	CleanupParameters::LastSavedParameters.assign(this);
	if (globalParams)
		CleanupParameters::GlobalParameters.assign(this);
}

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

const CleanupTypes::FDG_INFO &CleanupParameters::getFdgInfo()
{
	if (m_fdgInfo.m_name == "") {
		std::vector<std::string> names;
		FdgManager::instance()->getFdgNames(names);
		if (names.size() > 1) {
			const CleanupTypes::FDG_INFO *info =
				FdgManager::instance()->getFdg(names[0]);
			if (info)
				m_fdgInfo = *info;
		}
	}
	return m_fdgInfo;
}