package com.ts3client.ui;

import javax.swing.ImageIcon;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;

/**
 * Programmatically drawn vector icons (no external image assets), so the client
 * is fully self-contained. All icons are rendered at 16×16 with a small
 * cache.
 */
public final class Icons {

    private static final int SZ = 16;

    private Icons() {
    }

    private interface Painter {
        void paint(Graphics2D g);
    }

    private static ImageIcon make(Painter p) {
        BufferedImage img = new BufferedImage(SZ, SZ, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g = img.createGraphics();
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
        p.paint(g);
        g.dispose();
        return new ImageIcon(img);
    }

    // ---- tree icons ----

    public static ImageIcon server() {
        return make(g -> {
            g.setColor(new Color(0x2C6EA5));
            g.fillRoundRect(2, 3, 12, 4, 2, 2);
            g.fillRoundRect(2, 9, 12, 4, 2, 2);
            g.setColor(new Color(0x9FD0F0));
            g.fillOval(4, 4, 2, 2);
            g.fillOval(4, 10, 2, 2);
        });
    }

    public static ImageIcon channel() {
        return channelPainted(new Color(0x3E7CB1), false);
    }

    public static ImageIcon channelLocked() {
        return channelPainted(new Color(0x8A6D3B), true);
    }

    private static ImageIcon channelPainted(Color c, boolean lock) {
        return make(g -> {
            g.setColor(c);
            g.setStroke(new BasicStroke(1.6f));
            // simple speaker-cone glyph
            g.fillRect(2, 6, 3, 4);
            int[] xs = {5, 9, 9, 5};
            int[] ys = {6, 3, 13, 10};
            g.fillPolygon(xs, ys, 4);
            g.setStroke(new BasicStroke(1.4f));
            g.drawArc(9, 5, 4, 6, -60, 120);
            if (lock) {
                g.setColor(new Color(0xB8860B));
                g.fillRoundRect(10, 9, 5, 5, 1, 1);
                g.setColor(Color.WHITE);
                g.fillRect(12, 10, 1, 2);
            }
        });
    }

    // ---- client status icons ----

    public static ImageIcon clientIdle() {
        return person(Theme.IDLE_CLIENT);
    }

    public static ImageIcon clientTalking() {
        return person(Theme.TALKING);
    }

    public static ImageIcon clientAway() {
        return person(Theme.AWAY);
    }

    private static ImageIcon person(Color c) {
        return make(g -> {
            g.setColor(c);
            g.fillOval(5, 2, 6, 6);              // head
            g.fillRoundRect(3, 9, 10, 6, 4, 4);  // shoulders
        });
    }

    public static ImageIcon micMuted() {
        return make(g -> {
            g.setColor(Theme.MUTED);
            g.fillRoundRect(6, 2, 4, 7, 2, 2);
            g.setStroke(new BasicStroke(1.4f));
            g.drawArc(4, 6, 8, 6, 200, 140);
            g.drawLine(8, 12, 8, 14);
            g.setStroke(new BasicStroke(2f));
            g.drawLine(2, 2, 14, 14); // slash
        });
    }

    public static ImageIcon speakerMuted() {
        return make(g -> {
            g.setColor(Theme.MUTED);
            g.fillRect(2, 6, 3, 4);
            int[] xs = {5, 9, 9, 5};
            int[] ys = {6, 3, 13, 10};
            g.fillPolygon(xs, ys, 4);
            g.setStroke(new BasicStroke(2f));
            g.drawLine(2, 2, 14, 14);
        });
    }

    // ---- toolbar / action icons ----

    public static ImageIcon connect() {
        return make(g -> {
            g.setColor(new Color(0x2E8B57));
            g.setStroke(new BasicStroke(2f));
            g.drawLine(3, 8, 8, 8);
            g.fillRoundRect(8, 5, 5, 6, 2, 2);
            g.drawLine(10, 3, 10, 5);
            g.drawLine(12, 3, 12, 5);
        });
    }

    public static ImageIcon disconnect() {
        return make(g -> {
            g.setColor(Theme.MUTED);
            g.setStroke(new BasicStroke(2f));
            g.drawLine(3, 8, 8, 8);
            g.fillRoundRect(8, 5, 5, 6, 2, 2);
            g.drawLine(2, 3, 6, 13);
        });
    }

    public static ImageIcon mic() {
        return make(g -> {
            g.setColor(new Color(0x37474F));
            g.fillRoundRect(6, 2, 4, 7, 2, 2);
            g.setStroke(new BasicStroke(1.4f));
            g.drawArc(4, 6, 8, 6, 200, 140);
            g.drawLine(8, 12, 8, 14);
            g.drawLine(6, 14, 10, 14);
        });
    }

    public static ImageIcon speaker() {
        return make(g -> {
            g.setColor(new Color(0x37474F));
            g.fillRect(2, 6, 3, 4);
            int[] xs = {5, 9, 9, 5};
            int[] ys = {6, 3, 13, 10};
            g.fillPolygon(xs, ys, 4);
            g.setStroke(new BasicStroke(1.4f));
            g.drawArc(9, 5, 4, 6, -60, 120);
        });
    }

    /** Marks the server that currently owns the microphone. */
    public static ImageIcon micActive() {
        return make(g -> {
            g.setColor(Theme.TALKING);
            g.fillOval(1, 1, 14, 14);
            g.setColor(Color.WHITE);
            g.fillRoundRect(6, 3, 4, 6, 2, 2);
            g.setStroke(new BasicStroke(1.4f));
            g.drawArc(4, 6, 8, 6, 200, 140);
            g.drawLine(8, 11, 8, 13);
        });
    }

    public static ImageIcon settings() {
        return make(g -> {
            g.setColor(new Color(0x37474F));
            g.setStroke(new BasicStroke(2f));
            g.drawOval(5, 5, 6, 6);
            for (int a = 0; a < 360; a += 45) {
                double r = Math.toRadians(a);
                int x1 = (int) (8 + Math.cos(r) * 5);
                int y1 = (int) (8 + Math.sin(r) * 5);
                int x2 = (int) (8 + Math.cos(r) * 7);
                int y2 = (int) (8 + Math.sin(r) * 7);
                g.drawLine(x1, y1, x2, y2);
            }
        });
    }

    public static ImageIcon app() {
        return make(g -> {
            g.setColor(Theme.ACCENT);
            g.fillRoundRect(1, 1, 14, 14, 4, 4);
            g.setColor(Color.WHITE);
            g.setStroke(new BasicStroke(1.6f));
            g.drawArc(4, 5, 8, 8, 30, 120);
            g.drawArc(2, 3, 12, 12, 30, 120);
            g.fillOval(7, 9, 2, 2);
        });
    }
}