package seng302.Model;

import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import javafx.scene.transform.Rotate;
import seng302.GPSCoordinate;
import seng302.GraphCoordinate;
import seng302.RaceMap;

import java.util.Random;

/**
 * Created by fwy13 on 17/03/17.
 */
public class ResizableRaceCanvas extends Canvas {
    GraphicsContext gc;
    RaceMap map;
    private BoatInRace[] boats;

    public void setBoats(BoatInRace[] boats) {
        this.boats = boats;
    }

    public ResizableRaceCanvas(RaceMap map) {
        this.map = map;
        gc = this.getGraphicsContext2D();
        // Redraw canvas when size changes.
        widthProperty().addListener(evt -> drawRaceMap());
        heightProperty().addListener(evt -> drawRaceMap());
    }

    public ResizableRaceCanvas(){
        this(null);
    }

    public void setMap (RaceMap map) {
        this.map = map;
    }

    public void displayMark(GraphCoordinate graphCoordinate, Paint paint){
        gc.setFill(paint);
        gc.fillOval(graphCoordinate.getX(), graphCoordinate.getY(), 15, 15);
    }

    public void displayLine(GraphCoordinate graphCoordinateA, GraphCoordinate graphCoordinateB, Paint paint){
        gc.setStroke(paint);
        gc.setFill(paint);
        gc.fillOval(graphCoordinateA.getX() - 3, graphCoordinateA.getY() - 3, 6, 6);
        gc.fillOval(graphCoordinateB.getX() - 3, graphCoordinateB.getY() - 3, 6, 6);
        gc.strokeLine(graphCoordinateA.getX(), graphCoordinateA.getY(), graphCoordinateB.getX(), graphCoordinateB.getY());
    }

    public void displayPoint(GraphCoordinate graphCoordinate, Paint paint){
        gc.setFill(paint);
        gc.fillOval(graphCoordinate.getX(), graphCoordinate.getY(), 10, 10);
    }

    public void displayArrow(GraphCoordinate coordinate, int angle){
        gc.save();
        rotate(angle, coordinate.getX(),coordinate.getY());
        gc.fillPolygon(new double[]{coordinate.getX()-12, coordinate.getX()-6, coordinate.getX(), coordinate.getX()-4, coordinate.getX()-4, coordinate.getX()-8, coordinate.getX()-8},
                new double[]{coordinate.getY()-5, coordinate.getY()-20, coordinate.getY()-5, coordinate.getY()-5, coordinate.getY()+20, coordinate.getY()+20, coordinate.getY()-5},
                7);
        gc.restore();
    }


    private void rotate(double angle, double px, double py) {
        Rotate r = new Rotate(angle, px, py);
        gc.setTransform(r.getMxx(), r.getMyx(), r.getMxy(), r.getMyy(), r.getTx(), r.getTy());
    }


    public void drawRaceMap() {

        double width = getWidth();
        double height = getHeight();

        gc.clearRect(0, 0, width, height);
        System.out.println("Race Map Canvas Width: "+ width + ", Height:" + height);
        this.map = new RaceMap(32.320989, -64.863, 32.278, -64.821, (int)width, (int)height);

        if (map == null){
            return;
        }

        //finish line
        gc.setLineWidth(2);
        GraphCoordinate finishLineCoord1 = this.map.convertGPS(32.317379, -64.839291);
        GraphCoordinate finishLineCoord2 = this.map.convertGPS(32.317257, -64.836260);
        displayLine(finishLineCoord1, finishLineCoord2, Color.DARKRED);
        //marks
        GraphCoordinate markCoord = this.map.convertGPS(32.293039, -64.843983);
        GraphCoordinate southGate1 = this.map.convertGPS(32.284680, -64.850045);
        GraphCoordinate southGate2 = this.map.convertGPS(32.280164, -64.847591);
        GraphCoordinate northGate1 = this.map.convertGPS(32.309693, -64.835249);
        GraphCoordinate northGate2 = this.map.convertGPS(32.308046, -64.831785);
        displayMark(markCoord, Color.GOLD);
        displayLine(southGate1, southGate2, Color.DARKCYAN);
        displayLine(northGate1, northGate2, Color.DARKVIOLET);
        //start line
        GraphCoordinate startline1 = this.map.convertGPS(32.296577, -64.854304);
        GraphCoordinate startline2 = this.map.convertGPS(32.293771, -64.855242);

        displayLine(startline1, startline2, Color.GREEN);


        if (boats != null) {
            for (BoatInRace boat : boats) {
                System.out.print("Drawing Boat At: " + boat.getCurrentPosition());
                displayMark(this.map.convertGPS(boat.getCurrentPosition()), boat.getColour());
            }
        }

        //display wind direction arrow - specify origin point and angle
        displayArrow(new GraphCoordinate(500, 20), 100);
    }

    public void drawBoat(Color colour, GPSCoordinate gpsCoordinates) {
        GraphCoordinate graphCoordinate =  this.map.convertGPS(gpsCoordinates);
        System.out.println("DrawingBoat" + gpsCoordinates.getLongitude());
        displayPoint(graphCoordinate, colour);
    }

    @Override
    public boolean isResizable() {
        return true;
    }

    @Override
    public double prefWidth(double height) {
        return getWidth();
    }

    @Override
    public double prefHeight(double width) {
        return getHeight();
    }
}