#include "IntelliToolPolygon.h"
#include "Layer/PaintingArea.h"
#include <QDebug>
#include <QCursor>
#include <QInputDialog>

IntelliToolPolygon::IntelliToolPolygon(PaintingArea* Area, IntelliColorPicker* colorPicker)
    :IntelliTool(Area, colorPicker){
    this->alphaInner = QInputDialog::getInt(nullptr,"Inner Alpha Value", "Value:", 0,0,255,1);
    lineWidth = QInputDialog::getInt(nullptr,"Line Width Input", "Width",1,1,50,1);;
    PointIsNearStart = false;
    isDrawing = false;
}

void IntelliToolPolygon::onMouseLeftPressed(int x, int y){
    if(!isDrawing && x > 0 && y > 0 && x<Area->getWidthOfActive() && y<Area->getHeightOfActive()){
        IntelliTool::onMouseLeftPressed(x,y);
        QPoint drawingPoint = QPoint(x,y);

        isDrawing = true;
        QPointList.push_back(drawingPoint);

        this->Canvas->image->drawPoint(QPointList.back(), colorPicker->getFirstColor(), lineWidth);
        this->Canvas->image->calculateVisiblity();
    }
    else if(isDrawing && isNearStart(x,y,QPointList.front())){
        PointIsNearStart = true;
        this->Canvas->image->drawLine(QPointList.back(), QPointList.front(), colorPicker->getFirstColor(), lineWidth);
        this->Canvas->image->calculateVisiblity();
    }
    else if(isDrawing){
        QPoint drawingPoint(x,y);
        QPointList.push_back(drawingPoint);
        this->Canvas->image->drawLine(QPointList[QPointList.size() - 2], QPointList[QPointList.size() - 1], colorPicker->getFirstColor(), lineWidth);
        this->Canvas->image->calculateVisiblity();
    }
}

void IntelliToolPolygon::onMouseRightPressed(int x, int y){
    isDrawing = false;
    PointIsNearStart = false;
    QPointList.clear();
    IntelliTool::onMouseRightPressed(x,y);
}

void IntelliToolPolygon::onMouseLeftReleased(int x, int y){
    if(PointIsNearStart && QPointList.size() > 1){
        PointIsNearStart = false;
        isDrawing = false;
        std::vector<Triangle> Triangles = IntelliHelper::calculateTriangles(QPointList);
        QPoint Point;
        QColor colorTwo(colorPicker->getSecondColor());
        colorTwo.setAlpha(alphaInner);
        for(int i = 0; i < Active->width; i++){
            for(int j = 0; j < Active->hight; j++){
                Point = QPoint(i,j);
                if(IntelliHelper::isInPolygon(Triangles,Point)){
                    this->Canvas->image->drawPixel(Point, colorTwo);
                }
            }
        }
        for(int i=0; i<QPointList.size(); i++){
            int next = (i+1)%QPointList.size();
            this->Canvas->image->drawLine(QPointList[i], QPointList[next], colorPicker->getFirstColor(), lineWidth);
        }
        QPointList.clear();
        IntelliTool::onMouseLeftReleased(x,y);
    }
}

void IntelliToolPolygon::onMouseRightReleased(int x, int y){
    IntelliTool::onMouseRightReleased(x,y);
}

void IntelliToolPolygon::onWheelScrolled(int value){
    IntelliTool::onWheelScrolled(value);
    if(!isDrawing){
        if(lineWidth + value < 10){
            lineWidth += value;
        }
        if(lineWidth < 1){
            lineWidth = 1;
        }
    }
}

void IntelliToolPolygon::onMouseMoved(int x, int y){
    IntelliTool::onMouseMoved(x,y);
}

bool IntelliToolPolygon::isNearStart(int x, int y, QPoint Startpoint){
    bool isNear = false;
    int StartX = Startpoint.x();
    int StartY = Startpoint.y();
    int valueToNear = 10;

    for(int i = StartX - valueToNear; i < StartX + valueToNear; i++){
        for(int j = StartY - valueToNear; j < StartY + valueToNear; j++){
            if((i == x) && (j == y)){
                isNear = true;
            }
        }
    }
    return isNear;
}