import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'dart:ui' as ui;
import 'dart:io';

class IconGenerator {
  static Future<void> generateAppIcons() async {
    // Sizes untuk berbagai platform
    final sizes = [
      16, 32, 48, 64, 128, 256, 512, 1024, // Berbagai ukuran
    ];

    for (final size in sizes) {
      await _generateIcon(size);
    }
  }

  static Future<void> _generateIcon(int size) async {
    // Create a recorder to record drawing commands
    final recorder = ui.PictureRecorder();
    final canvas = Canvas(recorder);

    // Background
    final backgroundPaint =
        Paint()
          ..color = Colors.blue
          ..style = PaintingStyle.fill;

    canvas.drawRRect(
      RRect.fromLTRBR(
        0,
        0,
        size.toDouble(),
        size.toDouble(),
        Radius.circular(size * 0.1),
      ),
      backgroundPaint,
    );

    // API Icon shape
    final iconPaint =
        Paint()
          ..color = Colors.white
          ..style = PaintingStyle.fill;

    final iconSize = size * 0.6;
    final iconOffset = size * 0.2;

    // Draw simple API icon (circles and lines)
    // Center circle
    canvas.drawCircle(
      Offset(size * 0.5, size * 0.5),
      iconSize * 0.15,
      iconPaint,
    );

    // Side circles
    canvas.drawCircle(
      Offset(iconOffset + iconSize * 0.2, size * 0.5),
      iconSize * 0.1,
      iconPaint,
    );

    canvas.drawCircle(
      Offset(iconOffset + iconSize * 0.8, size * 0.5),
      iconSize * 0.1,
      iconPaint,
    );

    // Connecting lines
    final linePaint =
        Paint()
          ..color = Colors.white
          ..strokeWidth = iconSize * 0.05
          ..style = PaintingStyle.stroke;

    canvas.drawLine(
      Offset(iconOffset + iconSize * 0.3, size * 0.5),
      Offset(iconOffset + iconSize * 0.35, size * 0.5),
      linePaint,
    );

    canvas.drawLine(
      Offset(iconOffset + iconSize * 0.65, size * 0.5),
      Offset(iconOffset + iconSize * 0.7, size * 0.5),
      linePaint,
    );

    // End recording
    final picture = recorder.endRecording();
    final image = await picture.toImage(size, size);
    final byteData = await image.toByteData(format: ui.ImageByteFormat.png);

    if (byteData != null) {
      final file = File('assets/icons/app_icon_${size}x$size.png');
      await file.writeAsBytes(byteData.buffer.asUint8List());
      print('Generated icon: ${file.path}');
    }
  }

  // Simple icon untuk development
  static Widget buildSimpleApiIcon({double size = 24, Color? color}) {
    return Container(
      width: size,
      height: size,
      decoration: BoxDecoration(
        color: color ?? Colors.blue,
        borderRadius: BorderRadius.circular(size * 0.1),
      ),
      child: Stack(
        alignment: Alignment.center,
        children: [
          // Center dot
          Container(
            width: size * 0.15,
            height: size * 0.15,
            decoration: const BoxDecoration(
              color: Colors.white,
              shape: BoxShape.circle,
            ),
          ),
          // Left dot
          Positioned(
            left: size * 0.2,
            child: Container(
              width: size * 0.1,
              height: size * 0.1,
              decoration: const BoxDecoration(
                color: Colors.white,
                shape: BoxShape.circle,
              ),
            ),
          ),
          // Right dot
          Positioned(
            right: size * 0.2,
            child: Container(
              width: size * 0.1,
              height: size * 0.1,
              decoration: const BoxDecoration(
                color: Colors.white,
                shape: BoxShape.circle,
              ),
            ),
          ),
          // Connecting lines
          Positioned(
            left: size * 0.3,
            child: Container(
              width: size * 0.05,
              height: size * 0.02,
              color: Colors.white,
            ),
          ),
          Positioned(
            right: size * 0.3,
            child: Container(
              width: size * 0.05,
              height: size * 0.02,
              color: Colors.white,
            ),
          ),
        ],
      ),
    );
  }
}