package npw;

import painter.SPainter;
import shapes.SCircle;
import javax.swing.*;
import java.awt.*;
import java.util.Random;
import java.util.Scanner;

public class SimpleDots {
    public void paintTheImage() {
        int radius = getNumber("circle radius"); // create a new method: getnumber
        int dotradius = getNumber("dot radius");
        String color = getColor();
        SPainter painter = new SPainter("Circle of Squares", radius * 2 + 50, radius * 2 + 50);
        painter.setBrushWidth(3);
        SCircle circle = new SCircle(radius);
        SCircle dot = new SCircle(dotradius);

        if (color.equalsIgnoreCase("red")) {
            painter.setColor(Color.RED);
        } else if (color.equalsIgnoreCase("green")) {
            painter.setColor(Color.GREEN);
        } else if (color.equalsIgnoreCase("blue")) {
            painter.setColor(Color.BLUE);
        } else {
            painter.setColor(Color.BLACK);
        }

        paintCircleOfDot(painter, circle, dot);//create a new method: paintCircleOfSquare
    }
    private String getColor() {
        String color = JOptionPane.showInputDialog(null, "Color?");
        return color;
    }
    private void paintCircleOfDot(SPainter painter, SCircle circle, SCircle dot) {
        painter.mfd(circle.radius());
        painter.tr();

        double moved = 0;
        while (moved < circle.diameter()) {
            double chord = chordLength(circle.radius() - moved, circle);//create a new method: chordLength
            int dots = dotOnLineCount(chord, dot.diameter());//create a new method squareOnLineCount
            paintRow(painter, dot, dots); // create a new method paintRow
            nextRow(painter, dot.diameter()); // create a new method nextRow
            moved = moved + dot.diameter();
        }
        painter.tl();
        painter.mfd(circle.radius());
    }
    private void nextRow(SPainter painter, double rowHeight) {
        painter.tr();
        painter.mfd(rowHeight);
        painter.tl();
    }
    private void paintRow(SPainter painter, SCircle dot, int dotsToPaint) {
        double centerOffset = ((dotsToPaint * dot.diameter()) / 2) - dot.diameter() / 2;
        painter.mbk(centerOffset);
        int painted = 0;
        while (painted < dotsToPaint) {
            paintOneDot(painter, dot);
            painter.mfd(dot.diameter());
            painted = painted + 1;
        }
        painter.mbk(centerOffset + dot.diameter());

    }
    private void paintOneDot(SPainter painter, SCircle dot) {
        dot.s2();
        painter.paint(dot);
        painter.draw(dot);
        dot.x2();
    }
    private static int dotOnLineCount(double lineLength, double sideLength) {
        int dots = ((int) Math.ceil((lineLength - sideLength) / sideLength) + 1);
        return dots;
    }

    private double chordLength(double yOffset, SCircle circle) {
        double xLength = Math.sqrt(Math.pow(circle.radius(), 2) - Math.pow(yOffset, 2));
        double chordLength = xLength * 2;
        return chordLength;
    }
    private static int getNumber(String prompt) {
        String nss = JOptionPane.showInputDialog(null, prompt + "?");
        Scanner scanner = new Scanner(nss);
        return scanner.nextInt();
    }
    private static Color randomColor() {
        Random rgen = new Random();
        int r = rgen.nextInt(256);
        int g = rgen.nextInt(256);
        int b = rgen.nextInt(256);
        return new Color(r, g, b);
    }
    public SimpleDots() {
        paintTheImage();
    }
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new SimpleDots();
            }
        });
    }


}