<?php

namespace CpChart\Chart;

/**
 *  pBubble - class to draw bubble charts
 *
 *  Version     : 2.1.4
 *  Made by     : Jean-Damien POGOLOTTI
 *  Last Update : 19/01/2014
 *
 *  This file can be distributed under the license you can find at :
 *
 *  http://www.pchart.net/license
 *
 *  You can find the whole class documentation on the pChart web site.
 */
class Bubble
{
    /**
     * @var Image
     */
    public $pChartObject;

    /**
     * @var Data
     */
    public $pDataObject;

    /**
     * @param Image $pChartObject
     * @param Data $pDataObject
     */
    public function __construct(Image $pChartObject, Data $pDataObject)
    {
        $this->pChartObject = $pChartObject;
        $this->pDataObject = $pDataObject;
    }

    /**
     * Prepare the scale
     *
     * @param type $DataSeries
     * @param type $WeightSeries
     */
    public function bubbleScale($DataSeries, $WeightSeries)
    {
        if (!is_array($DataSeries)) {
            $DataSeries = [$DataSeries];
        }
        if (!is_array($WeightSeries)) {
            $WeightSeries = [$WeightSeries];
        }

        /* Parse each data series to find the new min & max boundaries to scale */
        $NewPositiveSerie = "";
        $NewNegativeSerie = "";
        $MaxValues = 0;
        $LastPositive = 0;
        $LastNegative = 0;

        foreach ($DataSeries as $Key => $SerieName) {
            $SerieWeightName = $WeightSeries[$Key];

            $this->pDataObject->setSerieDrawable($SerieWeightName, false);
            $serieData = $this->pDataObject->Data["Series"][$SerieName]["Data"];
            if (count($serieData) > $MaxValues) {
                $MaxValues = count($serieData);
            }

            foreach ($serieData as $Key => $Value) {
                if ($Value >= 0) {
                    $BubbleBounds = $Value + $this->pDataObject->Data["Series"][$SerieWeightName]["Data"][$Key];

                    if (!isset($NewPositiveSerie[$Key])) {
                        $NewPositiveSerie[$Key] = $BubbleBounds;
                    } elseif ($NewPositiveSerie[$Key] < $BubbleBounds) {
                        $NewPositiveSerie[$Key] = $BubbleBounds;
                    }
                    $LastPositive = $BubbleBounds;
                } else {
                    $BubbleBounds = $Value - $this->pDataObject->Data["Series"][$SerieWeightName]["Data"][$Key];

                    if (!isset($NewNegativeSerie[$Key])) {
                        $NewNegativeSerie[$Key] = $BubbleBounds;
                    } elseif ($NewNegativeSerie[$Key] > $BubbleBounds) {
                        $NewNegativeSerie[$Key] = $BubbleBounds;
                    }
                    $LastNegative = $BubbleBounds;
                }
            }
        }

        /* Check for missing values and all the fake positive serie */
        if ($NewPositiveSerie != "") {
            for ($i = 0; $i < $MaxValues; $i++) {
                if (!isset($NewPositiveSerie[$i])) {
                    $NewPositiveSerie[$i] = $LastPositive;
                }
            }
            $this->pDataObject->addPoints($NewPositiveSerie, "BubbleFakePositiveSerie");
        }

        /* Check for missing values and all the fake negative serie */
        if ($NewNegativeSerie != "") {
            for ($i = 0; $i < $MaxValues; $i++) {
                if (!isset($NewNegativeSerie[$i])) {
                    $NewNegativeSerie[$i] = $LastNegative;
                }
            }

            $this->pDataObject->addPoints($NewNegativeSerie, "BubbleFakeNegativeSerie");
        }
    }

    public function resetSeriesColors()
    {
        $Data = $this->pDataObject->getData();
        $Palette = $this->pDataObject->getPalette();

        $ID = 0;
        foreach ($Data["Series"] as $SerieName => $SeriesParameters) {
            if ($SeriesParameters["isDrawable"]) {
                $this->pDataObject->Data["Series"][$SerieName]["Color"]["R"] = $Palette[$ID]["R"];
                $this->pDataObject->Data["Series"][$SerieName]["Color"]["G"] = $Palette[$ID]["G"];
                $this->pDataObject->Data["Series"][$SerieName]["Color"]["B"] = $Palette[$ID]["B"];
                $this->pDataObject->Data["Series"][$SerieName]["Color"]["Alpha"] = $Palette[$ID]["Alpha"];
                $ID++;
            }
        }
    }

    /* Prepare the scale */

    public function drawBubbleChart($DataSeries, $WeightSeries, $Format = "")
    {
        $ForceAlpha = isset($Format["ForceAlpha"]) ? $Format["ForceAlpha"] : VOID;
        $DrawBorder = isset($Format["DrawBorder"]) ? $Format["DrawBorder"] : true;
        $BorderWidth = isset($Format["BorderWidth"]) ? $Format["BorderWidth"] : 1;
        $Shape = isset($Format["Shape"]) ? $Format["Shape"] : BUBBLE_SHAPE_ROUND;
        $Surrounding = isset($Format["Surrounding"]) ? $Format["Surrounding"] : null;
        $BorderR = isset($Format["BorderR"]) ? $Format["BorderR"] : 0;
        $BorderG = isset($Format["BorderG"]) ? $Format["BorderG"] : 0;
        $BorderB = isset($Format["BorderB"]) ? $Format["BorderB"] : 0;
        $BorderAlpha = isset($Format["BorderAlpha"]) ? $Format["BorderAlpha"] : 30;
        $RecordImageMap = isset($Format["RecordImageMap"]) ? $Format["RecordImageMap"] : false;

        if (!is_array($DataSeries)) {
            $DataSeries = [$DataSeries];
        }
        if (!is_array($WeightSeries)) {
            $WeightSeries = [$WeightSeries];
        }

        $Data = $this->pDataObject->getData();
        $Palette = $this->pDataObject->getPalette();

        if (isset($Data["Series"]["BubbleFakePositiveSerie"])) {
            $this->pDataObject->setSerieDrawable("BubbleFakePositiveSerie", false);
        }
        if (isset($Data["Series"]["BubbleFakeNegativeSerie"])) {
            $this->pDataObject->setSerieDrawable("BubbleFakeNegativeSerie", false);
        }

        $this->resetSeriesColors();

        list($XMargin, $XDivs) = $this->pChartObject->scaleGetXSettings();

        foreach ($DataSeries as $Key => $SerieName) {
            $AxisID = $Data["Series"][$SerieName]["Axis"];
            $Mode = $Data["Axis"][$AxisID]["Display"];
            $Format = $Data["Axis"][$AxisID]["Format"];
            $Unit = $Data["Axis"][$AxisID]["Unit"];

            if (isset($Data["Series"][$SerieName]["Description"])) {
                $SerieDescription = $Data["Series"][$SerieName]["Description"];
            } else {
                $SerieDescription = $SerieName;
            }

            $XStep = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1 - $XMargin * 2) / $XDivs;

            $X = $this->pChartObject->GraphAreaX1 + $XMargin;
            $Y = $this->pChartObject->GraphAreaY1 + $XMargin;

            $Color = [
                "R" => $Palette[$Key]["R"],
                "G" => $Palette[$Key]["G"],
                "B" => $Palette[$Key]["B"],
                "Alpha" => $Palette[$Key]["Alpha"]
            ];

            if ($ForceAlpha != VOID) {
                $Color["Alpha"] = $ForceAlpha;
            }

            if ($DrawBorder) {
                if ($BorderWidth != 1) {
                    if ($Surrounding != null) {
                        $BorderR = $Palette[$Key]["R"] + $Surrounding;
                        $BorderG = $Palette[$Key]["G"] + $Surrounding;
                        $BorderB = $Palette[$Key]["B"] + $Surrounding;
                    }
                    if ($ForceAlpha != VOID) {
                        $BorderAlpha = $ForceAlpha / 2;
                    }
                    $BorderColor = [
                        "R" => $BorderR,
                        "G" => $BorderG,
                        "B" => $BorderB,
                        "Alpha" => $BorderAlpha
                    ];
                } else {
                    $Color["BorderAlpha"] = $BorderAlpha;

                    if ($Surrounding != null) {
                        $Color["BorderR"] = $Palette[$Key]["R"] + $Surrounding;
                        $Color["BorderG"] = $Palette[$Key]["G"] + $Surrounding;
                        $Color["BorderB"] = $Palette[$Key]["B"] + $Surrounding;
                    } else {
                        $Color["BorderR"] = $BorderR;
                        $Color["BorderG"] = $BorderG;
                        $Color["BorderB"] = $BorderB;
                    }
                    if ($ForceAlpha != VOID) {
                        $Color["BorderAlpha"] = $ForceAlpha / 2;
                    }
                }
            }

            foreach ($Data["Series"][$SerieName]["Data"] as $iKey => $Point) {
                $Weight = $Point + $Data["Series"][$WeightSeries[$Key]]["Data"][$iKey];

                $PosArray = $this->pChartObject->scaleComputeY(
                    $Point,
                    ["AxisID" => $AxisID]
                );
                $WeightArray = $this->pChartObject->scaleComputeY(
                    $Weight,
                    ["AxisID" => $AxisID]
                );

                if ($Data["Orientation"] == SCALE_POS_LEFTRIGHT) {
                    if ($XDivs == 0) {
                        $XStep = 0;
                    } else {
                        $XStep = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1 - $XMargin * 2)
                            / $XDivs
                        ;
                    }
                    $Y = floor($PosArray);
                    $CircleRadius = floor(abs($PosArray - $WeightArray) / 2);

                    if ($Shape == BUBBLE_SHAPE_SQUARE) {
                        if ($RecordImageMap) {
                            $this->pChartObject->addToImageMap(
                                "RECT",
                                (
                                    floor($X - $CircleRadius)
                                    . "," . floor($Y - $CircleRadius)
                                    . "," . floor($X + $CircleRadius)
                                    . "," . floor($Y + $CircleRadius)
                                ),
                                $this->pChartObject->toHTMLColor(
                                    $Palette[$Key]["R"],
                                    $Palette[$Key]["G"],
                                    $Palette[$Key]["B"]
                                ),
                                $SerieDescription,
                                $Data["Series"][$WeightSeries[$Key]]["Data"][$iKey]
                            );
                        }

                        if ($BorderWidth != 1) {
                            $this->pChartObject->drawFilledRectangle(
                                $X - $CircleRadius - $BorderWidth,
                                $Y - $CircleRadius - $BorderWidth,
                                $X + $CircleRadius + $BorderWidth,
                                $Y + $CircleRadius + $BorderWidth,
                                $BorderColor
                            );
                            $this->pChartObject->drawFilledRectangle(
                                $X - $CircleRadius,
                                $Y - $CircleRadius,
                                $X + $CircleRadius,
                                $Y + $CircleRadius,
                                $Color
                            );
                        } else {
                            $this->pChartObject->drawFilledRectangle(
                                $X - $CircleRadius,
                                $Y - $CircleRadius,
                                $X + $CircleRadius,
                                $Y + $CircleRadius,
                                $Color
                            );
                        }
                    } elseif ($Shape == BUBBLE_SHAPE_ROUND) {
                        if ($RecordImageMap) {
                            $this->pChartObject->addToImageMap(
                                "CIRCLE",
                                floor($X) . "," . floor($Y) . "," . floor($CircleRadius),
                                $this->pChartObject->toHTMLColor(
                                    $Palette[$Key]["R"],
                                    $Palette[$Key]["G"],
                                    $Palette[$Key]["B"]
                                ),
                                $SerieDescription,
                                $Data["Series"][$WeightSeries[$Key]]["Data"][$iKey]
                            );
                        }

                        if ($BorderWidth != 1) {
                            $this->pChartObject->drawFilledCircle(
                                $X,
                                $Y,
                                $CircleRadius + $BorderWidth,
                                $BorderColor
                            );
                            $this->pChartObject->drawFilledCircle($X, $Y, $CircleRadius, $Color);
                        } else {
                            $this->pChartObject->drawFilledCircle($X, $Y, $CircleRadius, $Color);
                        }
                    }

                    $X = $X + $XStep;
                } elseif ($Data["Orientation"] == SCALE_POS_TOPBOTTOM) {
                    if ($XDivs == 0) {
                        $XStep = 0;
                    } else {
                        $XStep = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1 - $XMargin * 2)
                            / $XDivs
                        ;
                    }
                    $X = floor($PosArray);
                    $CircleRadius = floor(abs($PosArray - $WeightArray) / 2);

                    if ($Shape == BUBBLE_SHAPE_SQUARE) {
                        if ($RecordImageMap) {
                            $this->pChartObject->addToImageMap(
                                "RECT",
                                (
                                    floor($X - $CircleRadius) . ","
                                    . floor($Y - $CircleRadius) . ","
                                    . floor($X + $CircleRadius) . ","
                                    . floor($Y + $CircleRadius)
                                ),
                                $this->pChartObject->toHTMLColor(
                                    $Palette[$Key]["R"],
                                    $Palette[$Key]["G"],
                                    $Palette[$Key]["B"]
                                ),
                                $SerieDescription,
                                $Data["Series"][$WeightSeries[$Key]]["Data"][$iKey]
                            );
                        }

                        if ($BorderWidth != 1) {
                            $this->pChartObject->drawFilledRectangle(
                                $X - $CircleRadius - $BorderWidth,
                                $Y - $CircleRadius - $BorderWidth,
                                $X + $CircleRadius + $BorderWidth,
                                $Y + $CircleRadius + $BorderWidth,
                                $BorderColor
                            );
                            $this->pChartObject->drawFilledRectangle(
                                $X - $CircleRadius,
                                $Y - $CircleRadius,
                                $X + $CircleRadius,
                                $Y + $CircleRadius,
                                $Color
                            );
                        } else {
                            $this->pChartObject->drawFilledRectangle(
                                $X - $CircleRadius,
                                $Y - $CircleRadius,
                                $X + $CircleRadius,
                                $Y + $CircleRadius,
                                $Color
                            );
                        }
                    } elseif ($Shape == BUBBLE_SHAPE_ROUND) {
                        if ($RecordImageMap) {
                            $this->pChartObject->addToImageMap(
                                "CIRCLE",
                                floor($X) . "," . floor($Y) . "," . floor($CircleRadius),
                                $this->pChartObject->toHTMLColor(
                                    $Palette[$Key]["R"],
                                    $Palette[$Key]["G"],
                                    $Palette[$Key]["B"]
                                ),
                                $SerieDescription,
                                $Data["Series"][$WeightSeries[$Key]]["Data"][$iKey]
                            );
                        }

                        if ($BorderWidth != 1) {
                            $this->pChartObject->drawFilledCircle(
                                $X,
                                $Y,
                                $CircleRadius + $BorderWidth,
                                $BorderColor
                            );
                            $this->pChartObject->drawFilledCircle($X, $Y, $CircleRadius, $Color);
                        } else {
                            $this->pChartObject->drawFilledCircle($X, $Y, $CircleRadius, $Color);
                        }
                    }

                    $Y = $Y + $XStep;
                }
            }
        }
    }

    public function writeBubbleLabel($SerieName, $SerieWeightName, $Points, $Format = "")
    {
        $DrawPoint = isset($Format["DrawPoint"]) ? $Format["DrawPoint"] : LABEL_POINT_BOX;

        if (!is_array($Points)) {
            $Point = $Points;
            $Points = [];
            $Points[] = $Point;
        }

        $Data = $this->pDataObject->getData();

        if (!isset($Data["Series"][$SerieName])
            || !isset($Data["Series"][$SerieWeightName])
        ) {
            return(0);
        }
        list($XMargin, $XDivs) = $this->pChartObject->scaleGetXSettings();

        $AxisID = $Data["Series"][$SerieName]["Axis"];
        $AxisMode = $Data["Axis"][$AxisID]["Display"];
        $AxisFormat = $Data["Axis"][$AxisID]["Format"];
        $AxisUnit = $Data["Axis"][$AxisID]["Unit"];
        $XStep = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1 - $XMargin * 2) / $XDivs;

        $X = $InitialX = $this->pChartObject->GraphAreaX1 + $XMargin;
        $Y = $InitialY = $this->pChartObject->GraphAreaY1 + $XMargin;

        $Color = [
            "R" => $Data["Series"][$SerieName]["Color"]["R"],
            "G" => $Data["Series"][$SerieName]["Color"]["G"],
            "B" => $Data["Series"][$SerieName]["Color"]["B"],
            "Alpha" => $Data["Series"][$SerieName]["Color"]["Alpha"]
        ];

        foreach ($Points as $Key => $Point) {
            $Value = $Data["Series"][$SerieName]["Data"][$Point];
            $PosArray = $this->pChartObject->scaleComputeY($Value, ["AxisID" => $AxisID]);

            if (isset($Data["Abscissa"]) && isset($Data["Series"][$Data["Abscissa"]]["Data"][$Point])) {
                $Abscissa = $Data["Series"][$Data["Abscissa"]]["Data"][$Point] . " : ";
            } else {
                $Abscissa = "";
            }
            $Value = $this->pChartObject->scaleFormat($Value, $AxisMode, $AxisFormat, $AxisUnit);
            $Weight = $Data["Series"][$SerieWeightName]["Data"][$Point];
            $Caption = $Abscissa . $Value . " / " . $Weight;

            if (isset($Data["Series"][$SerieName]["Description"])) {
                $Description = $Data["Series"][$SerieName]["Description"];
            } else {
                $Description = "No description";
            }
            $Series = [["Format" => $Color, "Caption" => $Caption]];

            if ($Data["Orientation"] == SCALE_POS_LEFTRIGHT) {
                if ($XDivs == 0) {
                    $XStep = 0;
                } else {
                    $XStep = ($this->pChartObject->GraphAreaX2 - $this->pChartObject->GraphAreaX1 - $XMargin * 2)
                        / $XDivs
                    ;
                }

                $X = floor($InitialX + $Point * $XStep);
                $Y = floor($PosArray);
            } else {
                if ($XDivs == 0) {
                    $YStep = 0;
                } else {
                    $YStep = ($this->pChartObject->GraphAreaY2 - $this->pChartObject->GraphAreaY1 - $XMargin * 2)
                        / $XDivs
                    ;
                }

                $X = floor($PosArray);
                $Y = floor($InitialY + $Point * $YStep);
            }

            if ($DrawPoint == LABEL_POINT_CIRCLE) {
                $this->pChartObject->drawFilledCircle(
                    $X,
                    $Y,
                    3,
                    [
                        "R" => 255,
                        "G" => 255,
                        "B" => 255,
                        "BorderR" => 0,
                        "BorderG" => 0,
                        "BorderB" => 0
                    ]
                );
            } elseif ($DrawPoint == LABEL_POINT_BOX) {
                $this->pChartObject->drawFilledRectangle(
                    $X - 2,
                    $Y - 2,
                    $X + 2,
                    $Y + 2,
                    [
                        "R" => 255,
                        "G" => 255,
                        "B" => 255,
                        "BorderR" => 0,
                        "BorderG" => 0,
                        "BorderB" => 0
                    ]
                );
            }

            $this->pChartObject->drawLabelBox($X, $Y - 3, $Description, $Series, $Format);
        }
    }
}
