package uk.org.floop.epq3d;

import com.github.sarxos.webcam.Webcam;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Objects;

public class Texture {
    boolean valid = false;
    int index = 0;
    protected final String name;
    private final String type;
    public simpleImage image;
    public int color;
    public double randomValue; // value which randomises the value (brightness) of the colour for each face.
    public Webcam camera;
    public Texture(String _name, Color _color, double _randomValue) {
        name = _name;
        type = "solid";
        color = _color.getRGB();
        randomValue = _randomValue;
    }

    public Texture(String _name, Color _color, String _imgPath) {
        name = _name;
        type = "image";
        color = _color.getRGB();
        // grab file and pack it into a list[][] int (gives better performance than a BufferedImage by a _lot_
        String path = System.getProperty("user.dir") + "/" + _imgPath;
        File imgFile = new File(path);
        try {
            image = new simpleImage(ImageIO.read(imgFile));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    public Texture(String _name){
        name = _name;
        type = "camera";
        camera = Webcam.getDefault();
        camera.open(true);
    }
    public void invalidate(){
        if(Objects.equals(type, "camera")){
            index += 1;
            if(index == 10){
                nextFrame();
                index = 0;
            }
        }

        valid = true;

    }
    public void nextFrame(){
        BufferedImage newImg = camera.getImage();
        if(newImg != null){
            image = new simpleImage(newImg);
        }
    }
    public boolean isSolid() {
        if (Objects.equals(type, "solid")) {
            return true;
        } else {
            return false;
        }
    }

    public int getColor(double ang, double random) {
        // the multiplier changes the brightness of the face. It is dependent on the angle of the face, and a random value, which is applied to individual faces
        double multiplier = (1.5 - ang/(Math.PI))+random*randomValue;
        int r = (color >> 16) & 0xff;
        int g = (color >> 8) & 0xff;
        int b = color & 0xff;
        int result = 255 << 24;
        result = result | (int) (Math.min(255, (r + 255*(multiplier-1)) * multiplier - 255*(multiplier-1)))<<16;
        result = result | (int) (Math.min(255, (g + 255*(multiplier-1)) * multiplier - 255*(multiplier-1)))<<8;
        result = result | (int) (Math.min(255, (b + 255*(multiplier-1)) * multiplier - 255*(multiplier-1)));
        return result;
    }
    public int getColor(double ang, int x, int y) {
//        if(!valid && Objects.equals(type, "camera")){
//            nextFrame();
//            valid = true;
//        }
        double multiplier = 1.5 - ang / (Math.PI);
        int[] rgb;
        rgb = image.getPixel(x, y);
        int result = 255 << 24;
        result = result | (int) (Math.min(255, (rgb[0] + 255*(multiplier-1)) * multiplier - 255*(multiplier-1)))<<16;
        result = result | (int) (Math.min(255, (rgb[1] + 255*(multiplier-1)) * multiplier - 255*(multiplier-1)))<<8;
        result = result | (int) (Math.min(255, (rgb[2] + 255*(multiplier-1)) * multiplier - 255*(multiplier-1)));
        return result;
    }

}