/*
 * PanelPlotOutput.hh
 *
 *  Created on: 29 oct. 2013
 *      Author: CS
 */

#ifndef PANELPLOTOUTPUT_HH_
#define PANELPLOTOUTPUT_HH_

#include "ContextFileWriter.hh"
#include "Layout.hh"
#include "Panel.hh"
#include "PanelPlotOutputException.hh"
#include "ParamOutput.hh"
#include "ParameterAxes.hh"
#include "ParameterData.hh"
#include "PlotLogger.hh"
#include <AMDA_exception.hh>
#include <cxxabi.h>
#include <fstream>
#include <iostream>
#include <tuple>
#include <vector>
#include "PlotLogger.hh"
#include "PanelPlotOutputException.hh"
#include "Layout.hh"
#include "ContextFileWriter.hh"
#include "Matrix.hh"

#include <cfloat>

namespace plot {

// 0 => xmin
// 1 => xmax
// 2 => ymin
// 3 => ymax
typedef std::tuple<double, double, double, double> PlWindow;
// 0 => x major tick space
// 1 => x minor tick number
// 2 => y major tick space
// 3 => y minor tick number
typedef std::tuple<double, double, double, double> TickConf;

/**
 * Margin.
 */
struct Margin {
	double _left;
	double _right;
	double _top;
	double _bottom;
};

class PanelPlotOutput {
public:
	static const float DEFAULT_TICK_LENGTH_FACTOR;

	/**
	 * Width character proportion is approximatively 0.83 times smaller than height.
	 */
	static const float CHAR_RATIO;

	/**
	 * This two next attribute tell from which tick length plplot is insufficient to calculate space between tickmarks and ticks.
	 * Space between the two is static and can't be modified by user request.
	 * So when limit is reached we must bypass problem by setting two different viewport to let sufficient space between tickmarks and ticks.
	 */
	static const float VERTICAL_TICK_LENGTH_LIMIT;
	static const float HORIZONTAL_TICK_LENGTH_LIMIT;
                    static const float YAXISMARGIN;

	PanelPlotOutput(AMDA::Parameters::ParameterManager& manager,
			boost::shared_ptr<Panel> panel, bool isStandalone = true);
	virtual ~PanelPlotOutput();

	/**
	 * type name. This name is used to identify nodes in xml config
	 * and xml request.
	 * @return
	 */
	virtual const std::string typeName() = 0;

	/**
	 * type name. This name is used to identify nodes in xml config
	 * and xml request.
	 * @return
	 */
	virtual const std::string subTypeName() = 0;

	/**
	 * @brief Compute the initial plot area for the panel
	 */
	virtual void preparePlotArea (double startTime, double stopTime, int intervalIndex, 
						std::vector<std::string>* ttNames = NULL);

	/**
	 * @brief Retrieve plot area bounds for the panel
	 */
	virtual void getPlotAreaBounds (Bounds &plotAreaBounds);

	/**
	 * @brief Force the plot area horizontal position and width
	 */
	virtual void forcePlotAreaPosAndWidth(double plotAreaX, double plotAreaWidth);

	/**
	 * @brief Retrieve left axis tickMark width
	 */
	virtual int getLeftAxisTickMarkWidth (void);

	/**
	 * @brief Force left axis tickmark width for the panel
	 */
	virtual void forceLeftAxisTickMarkWidth(int leftAxisTickMarkWidth);

	/**
	 * @brief draw the plot for the current time interval
	 */
	virtual bool draw(double startTime, double stopTime, int intervalIndex, bool isFirstInterval, bool isLastInterval);

	/**
	 * @brief Write plot context
	 */
	virtual void writeContext(ContextFileWriter &writer, AMDA::Parameters::TimeIntervalList::iterator currentTimeInterval);

	/*
	 * @brief Set a pointer to the time intervals list
	 */
	void setTimeIntervalListPtr(AMDA::Parameters::TimeIntervalList *timeIntervalListPtr);

	/**
	 * Sets PLplot stream to draw panel and plot
	 */
	virtual void setPlStream(std::shared_ptr<plstream>& pls);

	/**
	 * Adds a parameter
	 */
	virtual void addParam(const std::string& name) {
		ParameterAxes newParameter(name);
		_parameterAxesList.push_back(newParameter);
	}

	virtual ParameterAxes& getParameter(const std::string& name) {
		for (ParameterAxes& param : _parameterAxesList) {
			if (param._originalParamId == name) {
				return param;
			}
		}
		ParameterAxes newParameter(name);
		_parameterAxesList.push_back(newParameter);
		return _parameterAxesList.back();
	}

	/*
	 * Create a sampled parameter from an original parameter and a sampling value
	 */
	AMDA::Parameters::ParameterSPtr createSampledParameter(AMDA::Parameters::ParameterSPtr& originalParam, float samplingValue, int gap = -1);

	/*
	 * Create a sampled parameter from an original parameter and a reference parameter for time definition
	 */
	AMDA::Parameters::ParameterSPtr createSampledParameterUnderReferenceParameter(AMDA::Parameters::ParameterSPtr& originalParam,
			AMDA::Parameters::ParameterSPtr& refParam);

	/**
	 * Create parameters needed for this plot
	 * By default, the creation method create parameters for a time serie.
	 * Override it for other plot type
	 */
	virtual void createParameters(std::list<std::string>& usedParametersId_);

	/**
	 * Get related ParameterAxes for a given color serie id
	 */
	ParameterAxes* getParameterAxesByColorSerieId(int colorSerieId);

	/**
	 * Get related ParameterAxes for a given x serie id
	 */
	ParameterAxes* getParameterAxesByXSerieId(int xSerieId);

	/**
	 * Gets sampling value from resolution (point-per-plot) according to
	 * the plot time interval and the base parameter sampling value.
	 */
	virtual double getCorrectedSamplingValue(int maxResolution, double samplingValue);

	/**
	 * @brief Get the list of indexes used for a parameter
	 */
	virtual std::vector<AMDA::Common::ParameterIndexComponent> getParamUsedIndexes(std::string paramId, int dim1Size, int dim2Size = -1);

	const Margin getMargin(){
		Bounds panelBounds(_panel->getBoundsInPlPage());

		Margin m;
		m._left = _plotAreaBounds._x - panelBounds._x;
		m._right = (panelBounds._x + panelBounds._width) - (_plotAreaBounds._x + _plotAreaBounds._width);
		m._top = (panelBounds._y + panelBounds._height) - (_plotAreaBounds._y + _plotAreaBounds._height);
		m._bottom = _plotAreaBounds._y - panelBounds._y;
		return m;
	}

	/**
	 * @brief reset plot
	 */
	virtual void resetPlot() {
		if (_panel != nullptr)
			_panel->resetPlot();
		_automaticSerieColorCursor = 0;
		_nbSeriesByYAxisMap.clear();
		_pls.reset();
	}

	/*
	 * @brief Set pointer to params values
	 */
	void setParameterValues(std::map<std::string, ParameterData> *pParameterValues);

	/*
	 * @brief Get computed values (in relation with the y axis definition) for a y serie, an index of the serie and a time interval
	 * Do not forget to delete (*computedValues) !!
	 * Do not delete (*timeValues), the buffer is not copied !!
	 */
	bool getComputedValuesFromSerieAndInterval(double startDate, double stopDate, SeriesProperties &rSeriesProperties,
			AMDA::Common::ParameterIndexComponent index, double** computedValues, double** timeValues, int& nbValues);

	/*
	 * @brief Get computed values (in relation with the color axis definition) for a color serie and a time interval
	 * Do not forget to delete computedValues !!
	 * Don't delete timeValues !!
	 */
	bool getColoredComputedValuesFromSerieAndInterval(double startDate, double stopDate, SeriesProperties &rSeriesProperties,
			double** computedValues, double** timeValues, int& nbValues);

	/*
	 * @brief Get computed values (in relation with the y axis definition) for a y serie and a time interval
	 * Do not forget to delete computedValues !!
	 * Don't delete timeValues !!
	 */
	bool getErrorComputedValuesFromSerieAndInterval(double startDate, double stopDate, SeriesProperties &rSeriesProperties, 
			AMDA::Common::ParameterIndexComponent &pParamIndex,
			double** minComputedValues, double** minTimeValues, int& nbMinValues,
			double** maxComputedValues, double** maxTimeValues, int& nbMaxValues);

	/**
	 *@brief Defines the layout constraint to be used for the panel when used within a layout
	 */
	virtual PanelConstraint getLayoutConstraint (void) {
		return PanelConstraint::MaxWidth;
	}

	/**
	 * @brief Get nb series to draw by y axis
	 */
	std::map<std::string,int>& getNbSeriesByYAxis(); 

        /*
 	 * @brief Return the color to draw the line of a serie
	 */
        Color getSerieLineColor(SeriesProperties &rSeriesProperties, bool moreThanOneSerieForAxis);

	/**
	 * @brief Plot container
	 */
	boost::shared_ptr<Panel> _panel;

	/**
	 * @brief Parameters and series info
	 */
	ParameterAxesList _parameterAxesList;

        
                    // datastore for sauvaud plot
                   	struct SauvaudPart
	{
		double x[2];
		double y[2];
		std::vector<double> value;
		double isColorIndex;
	};

                    typedef std::vector<SauvaudPart> SauvaudGrid;

	void drawHistogramBoxes(std::vector<std::pair<double,double>> data, Color &color, double binWidth, double yMin , bool toFill);
	void drawHistoBox( PLFLT x0, PLFLT y0, double binWidth, Color &color, double yBefore, double yAfter, bool hasStairs );
	/*
	 * @brief Draw a matrix
	 */
	void drawMatrix(MatrixGrid& matrixGrid, double minDataVal, double maxDataVal,
			Color minValColor, Color maxValColor, int colorMapIndex, bool useLog0AsMin = false);
        
        	void draw2DMatrix(SauvaudGrid& sauvaudGrid, double minDataVal, double maxDataVal,
			Color minValColor, Color maxValColor, int colorMapIndex, bool useLog0AsMin = false);

	/**
	 * @brief Reset cursor used to attribute automatically a color to a serie
	 */
	void resetAutomaticSerieColorCursor() {
		_automaticSerieColorCursor = 0;
	}

	/**
 	 * Draw a rectangle
	 */
	void drawRectangle(double xmin, double xmax, double ymin, double ymax, Color& pColor, double alpha = 1.);

	bool isStandalone() {
		return _isStandalone;
	}

	AMDA::Parameters::ParameterManager& _parameterManager;

	std::map<std::string, ParameterData> *_pParameterValues;

	bool isHeightFixed(){
		return _isHeightFixed;
	}
	
	void setHeightFixed(bool isHeightFixed){
		_isHeightFixed = isHeightFixed;
	}

	void setWriteData(bool value){
		writeData_ = value;
	}

protected:
	/**
	 * @brief Flag to indicates whetever to write or not data for downloading
	 *
	 */
	bool writeData_;
	/**
	 * @brief the filedata associated with the plot preview downloading process
	 *
	 */
	std::ofstream fileData;
	/**
	 * @brief Write data into file for a plot preview
	 *
	 */
	virtual void writeDataFile(double startTime, double stopTime);
	/**
	 * @brief Add axis labels to data file for download
	 *
	 * @param lXAxis x axis
	 * @param lYAxis y axis
	 */
	int addAxisLabelToDataFile(boost::shared_ptr<Axis> lXAxis, boost::shared_ptr<Axis> lYAxis);
	/**
	 * @brief Close the datafile
	 *
	 */
	void closeDataFile();
	AMDA::Parameters::TimeIntervalList *_timeIntervalListPtr;

	/**
	 * @brief Compute plot area.
	 * @note If ratio need to be kept, ratio will be kept between width and height.
	 * @param bounds_ plot area bounds. It is updated by this method.
	 */
	virtual void calculatePlotArea(const Bounds& panelBounds_, Bounds& bounds_);

	/**
	 *@brief computes Panel Plot XY ratio
	 */
	void computePanelPlotXYRatio(void);

	/**
	 * @brief Get colored value associated to a data value. Return false if the value is filtered.
     */
	bool getColoredValue(double value, double filterMin, double filterMax, bool useLog0AsMin, PLFLT &col);

	/**
	 *@brief Draw fill area between parameter and constant or between parameters
	 */
	virtual void drawFills(double startDate, double stopDate);

	/**
	 * Draw list of symbols
	 */
	void drawSymbols(SymbolType pType, int pSize, double pFactor, Color pColor,
			int pNbData, double* pXData, double* pYData,
			double* pZData = NULL, double filterZMin = -DBL_MAX, double filterZMax = DBL_MAX);

	/**
	 * Draw list of lines
	 */
	void drawLines(LineType pType, LineStyle pStyle, int pWidth, Color& pColor,
			int pNbData, double* pXData, double* pYData,
			double* pZData = NULL, double filterZMin = -DBL_MAX, double filterZMax = DBL_MAX);

	/**
	 * Draw errors segments
	 */
	void drawYErrors (LineType pType, LineStyle pStyle, int pWidth, Color& pColor,
			int pNbData, double* pXData, double* pYMinData, double* pYMaxData);

	/**
	 *@brief Draw the serie of a parameter component on plot.
	 */
	virtual void drawSeries(double startDate, double stopDate, int intervalIndex, std::string pParamId, SeriesProperties& pSeries,
			AMDA::Common::ParameterIndexComponent pParamIndex, ParameterAxes& param, bool moreThanOneSerieForAxis);

	/**
	 *@brief Draw the spectro of a parameter on plot.
	 */
	virtual void drawSpectro(double startDate, double stopDate, std::string pParamId,
			SpectroProperties& pSpectro);
        
                       /**
	 *@brief Draw sauvaud plot of a parameter on plot.
	 */
        	virtual void drawSauvaud(double startDate, double stopDate, std::string pParamId,
			SauvaudProperties& pSauvaud, int subIndex, int subsNumber, std::string opositeLegend);

	virtual void drawHistogram(double startTime, double stopTime, std::string pParamId, 
								HistogramSeriesProperties& HistogramSeriesProperties);

	virtual void drawIntervals(double startDate, double stopDate, std::string pParamId,
			IntervalsProperties& pIntervals);

	/*
	 * @brief Draw interval
	 */
	virtual void drawSerieInterval(SeriesProperties& pSeries,
			double* xValues, double* yValues, double* timeValues,
			int nbValues, int intervalIndex);

	/**
	 * Draw an horizontal axis.
	 * Subclasses may override it to take into account decorator attached to that axis (for instance).
	 * @param pXAxis axis to draw.
	 * @param pPlWindow real word ranges.
	 * @param pPlotAreaSize plot ranges.
	 * @param pTickConf ticks configuration.
	 */
	virtual void drawXAxis(boost::shared_ptr<Axis> pXAxis, PlWindow& pPlWindow, Bounds& pPlotAreaSize, TickConf& pTickConf);
	/**
	 * Draw a vertical axis.
	 * Subclasses may override it to take into account decorator attached to that axis (for instance).
	 * @param pXAxis axis to draw.
	 * @param pPlWindow real word ranges.
	 * @param pPlotAreaSize plot ranges.
	 * @param pTickConf ticks configuration.
	 */
	virtual void drawYAxis(boost::shared_ptr<Axis> pXAxis, PlWindow& pPlWindow, Bounds& pPlotAreaSize, TickConf& pTickConf);
	/**
	 * @brief Draw legend for each axis.
	 * @param pAxis axis to draw.
	 * @param pPlWindow real word ranges.
	 * @param pPlotAreaSize plot ranges.
	 */
	virtual void drawLegends(boost::shared_ptr<Axis>& pAxis, PlWindow& pPlWindow, Bounds& pPlotAreaSize);

	/**
	 * @brief Add space if there is an exponent or indice
	 * 
	 * @param legend legend to check
	 * @param lPosition position to modify
	 */
	void addSpaceForExInd(std::string &legend, double &lPosition);

	/**
	 * @brief Draw parameters legend.
	 */
	virtual void drawParamsLegend(void);

	/**
	 * @brief Draw text legends.
	 */
	virtual void drawTextLegends(void);

	/**
	 * Convert an X axis string value to a double X value
	 * Subclasses may override it to take into account specific value meaning.
	 * @param value string value to convert.
	 */
	virtual double convertXAxisValue(const std::string &value);

	/**
	 * Convert an Y axis string value to a double Y value
	 * Subclasses may override it to take into account specific value meaning.
	 * @param value string value to convert.
	 */
	virtual double convertYAxisValue(const std::string &value);

	/**
	 * Draw X constant lines linked to an axis.
	 * Subclasses may override it to take into account decorator attached (for instance).
	 * @param pXAxis axis to draw.
	 * @param pPlWindow real word ranges.
	 */
	virtual void drawXConstantLines(boost::shared_ptr<Axis> pAxis, PlWindow& pPlWindow);
	/**
	 * Draw X constant lines linked to an axis.
	 * Subclasses may override it to take into account decorator attached (for instance).
	 * @param pXAxis axis to draw.
	 * @param pPlWindow real word ranges.
	 */
	virtual void drawYConstantLines(boost::shared_ptr<Axis> pAxis, PlWindow& pPlWindow);
	/**
	 * Draw textPlots for a panel.
	 * Subclasses may override it for specific drawings.
	 * @param pPlWindow real word ranges.
	 */
	virtual void drawTextPlots(boost::shared_ptr<Axis> pXAxis, boost::shared_ptr<Axis> pYAxis, PlWindow& pPlWindow, const TextPlots &textPlots);


	/**
	 * Draw curvePlot for a panel.
	 * Subclasses may override it for specific drawings.
	 * @param curvePlot curve properties.
	 */
	virtual void drawCurvePlot(CurvePlot &curvePlot);

	/**
	 * @brief Identify if other side of the plot area need to be drawn or not.
	 * @note A plot area side need to be drawn when there is no axis associated to it.
	 */
	virtual std::string drawOppositeSide(boost::shared_ptr<Axis> pAxis);

	/**
	 *@brief Draw additional objects on plot.
	 */
	virtual void drawAdditionalObjects ();

	/**
	 * Draw a z axis
	 */
	virtual void drawZAxis(boost::shared_ptr<Axis> pZAxis, PlWindow& pPlWindow, Bounds& pPlotAreaSize, TickConf& pTickConf);


	/**
	 * Get X Axis range for a serie
	 */
	Range getXAxisRange (SeriesProperties& pSeries, boost::shared_ptr<Axis> pAxis);

	/**
	 * Get Y Axis range for a serie
	 */
	Range getYAxisRange (SeriesProperties& pSeries, boost::shared_ptr<Axis> pAxis);

	/**
	 * Get Z Axis range for a serie
	 */
	Range getZAxisRange (SeriesProperties& pSeries, boost::shared_ptr<Axis> pAxis);

	/*
	 * @brief Return the color to draw the symbols of a serie
	 */
	Color getSerieSymbolColor(SeriesProperties &rSeriesProperties, Color &pLineColor);

	/**
	 * @brief Configure params legend for a plot.
	 */
	virtual void configureParamsLegend(double startTime, double stopTime, int intervalIndex);

	/**
	 * @brief Add a serie to the param legend
	 */
	void addSerieToParamsLegend(SeriesProperties& lSeriesProperties,
			AMDA::Common::ParameterIndexComponent& index, std::string originalParamId,
			Color& lineColor, Color& symbolColor,
			double startTime, double stopTime, int intervalIndex);

	/*
	 * @brief Return the associated params legend to a serie
	 */
	virtual std::string getSerieParamsLegendString(SeriesProperties &rSeriesProperties,
			AMDA::Common::ParameterIndexComponent& index, std::string originalParamId);

	/**
	 * @brief plplot stream
	 */
	std::shared_ptr<plstream> _pls;

	/*
	 * Dumps properties for test.
	 */
	virtual void dump(std::ostream& out_);

	/**
	 * @brief Fill the background of the plot area
	 *
	 * @param pls
	 */

	void fillBackground(std::shared_ptr<plstream> &pls);
	/**
	 * @brief Scale Enum to string
	 * 
	 * @param scale given axis scale
	 * @return std::string 
	 */
	std::string scaleStr(Axis::Scale scale)
	{
		switch (scale)
		{
		case Axis::Scale::LOGARITHMIC:
			return "logarithmic";
		case Axis::Scale::LINEAR:
			return "linear";

		default:
			return "None";
		}
	}

private:

	void drawAxis(boost::shared_ptr<Axis> pAxis, TickConf& pTickConf, std::string pXAxisOptions,
			std::string pYAxisOptions);

	double estimateZAxisWidth(boost::shared_ptr<Axis> pZAxis);

	boost::shared_ptr<std::vector<std::string>> _ttNames;

	/**
	 * @brief _plotAreaSideSet Store which side of plot area is linked to an axis.
	 */
	std::map<PlotCommon::Position, bool> _plotAreaSideSet;

	/**
	 * @brief nb series to draw by y axis
	 */
	std::map<std::string,int> _nbSeriesByYAxisMap;

	/**
	 * @brief plot array on which to draw data.
	 */
	Bounds _plotAreaBounds;

	/*
	 * @brief Panel XY ratio used for angular conversion
	 */
	double _panelPlotXYRatio;

	/*
	 * @brief Panel left axis tickmark width
	 */
	double _leftAxisTickMarkWidth;

	/*
	 * @brief cursor use to set a default color to a serie
	 */
	int _automaticSerieColorCursor;

	/*
	 * 
	 */
	bool _isStandalone;

	bool _isHeightFixed;

	void reserveSpaceForAxis (boost::shared_ptr<Axis>& pAxis, double titleHeight, std::map<PlotCommon::Position, int> nbAxesBySide,
			double& topSpace, double& bottomSpace, double& leftSpace, double& rightSpace);

	void reserveSpaceForTextLegend (boost::shared_ptr<TextLegendProperties>& pTextLegendProp, double titleHeight, double& topSpace, double& bottomSpace, double& leftSpace, double& rightSpace);
};

/**
 * Calculate room taken by tick.
 */
double getHorizontalTickLength(Axis* pAxis, double charHeight);

/**
 * Calculate room taken by tick.
 */
double getVerticalTickLength(Axis* pAxis, double charHeight);

} /* namespace plot */
#endif /* PANELPLOTOUTPUT_HH_ */