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

// Script untuk generate icon PNG dari Flutter widget
Future<void> generateIcon() async {
  WidgetsFlutterBinding.ensureInitialized();

  const size = 512;
  final recorder = ui.PictureRecorder();
  final canvas = Canvas(recorder);

  // Background gradient
  final backgroundPaint =
      Paint()
        ..shader = const LinearGradient(
          colors: [Color(0xFF1976D2), Color(0xFF2196F3)],
          begin: Alignment.topLeft,
          end: Alignment.bottomRight,
        ).createShader(Rect.fromLTWH(0, 0, size.toDouble(), size.toDouble()));

  // Draw rounded background
  canvas.drawRRect(
    RRect.fromLTRBR(
      0,
      0,
      size.toDouble(),
      size.toDouble(),
      const Radius.circular(80),
    ),
    backgroundPaint,
  );

  // White paint for elements
  final whitePaint =
      Paint()
        ..color = Colors.white
        ..style = PaintingStyle.fill;

  final linePaint =
      Paint()
        ..color = Colors.white
        ..strokeWidth = 8
        ..strokeCap = StrokeCap.round;

  // Draw API connection lines
  // Left side
  canvas.drawLine(const Offset(80, 200), const Offset(180, 200), linePaint);
  canvas.drawLine(const Offset(80, 256), const Offset(180, 256), linePaint);
  canvas.drawLine(const Offset(80, 312), const Offset(180, 312), linePaint);

  // Right side
  canvas.drawLine(const Offset(332, 200), const Offset(432, 200), linePaint);
  canvas.drawLine(const Offset(332, 256), const Offset(432, 256), linePaint);
  canvas.drawLine(const Offset(332, 312), const Offset(432, 312), linePaint);

  // Central connections
  canvas.drawLine(const Offset(200, 200), const Offset(220, 200), linePaint);
  canvas.drawLine(const Offset(200, 256), const Offset(220, 256), linePaint);
  canvas.drawLine(const Offset(200, 312), const Offset(220, 312), linePaint);

  canvas.drawLine(const Offset(292, 200), const Offset(312, 200), linePaint);
  canvas.drawLine(const Offset(292, 256), const Offset(312, 256), linePaint);
  canvas.drawLine(const Offset(292, 312), const Offset(312, 312), linePaint);

  // Draw API nodes (circles)
  canvas.drawCircle(const Offset(60, 200), 20, whitePaint);
  canvas.drawCircle(const Offset(60, 256), 20, whitePaint);
  canvas.drawCircle(const Offset(60, 312), 20, whitePaint);

  canvas.drawCircle(const Offset(452, 200), 20, whitePaint);
  canvas.drawCircle(const Offset(452, 256), 20, whitePaint);
  canvas.drawCircle(const Offset(452, 312), 20, whitePaint);

  // Central processing unit
  canvas.drawRRect(
    RRect.fromLTRBR(220, 180, 292, 312, const Radius.circular(12)),
    whitePaint,
  );

  // Fire detection symbol
  final firePaint =
      Paint()
        ..shader = const LinearGradient(
          colors: [Color(0xFFFF5722), Color(0xFFF44336)],
          begin: Alignment.topLeft,
          end: Alignment.bottomRight,
        ).createShader(const Rect.fromLTWH(240, 190, 32, 60));

  // Simple fire shape
  final firePath =
      Path()
        ..moveTo(256, 190)
        ..quadraticBezierTo(240, 200, 245, 220)
        ..quadraticBezierTo(250, 235, 256, 240)
        ..quadraticBezierTo(262, 235, 267, 220)
        ..quadraticBezierTo(272, 200, 256, 190);

  canvas.drawPath(firePath, firePaint);

  // Status indicator
  final statusPaint = Paint()..color = const Color(0xFF4CAF50);
  canvas.drawCircle(const Offset(400, 112), 24, statusPaint);

  // Check mark
  final checkPaint =
      Paint()
        ..color = Colors.white
        ..strokeWidth = 4
        ..strokeCap = StrokeCap.round
        ..style = PaintingStyle.stroke;

  final checkPath =
      Path()
        ..moveTo(388, 112)
        ..lineTo(396, 120)
        ..lineTo(412, 104);

  canvas.drawPath(checkPath, checkPaint);

  // Create image
  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.png');
    await file.writeAsBytes(byteData.buffer.asUint8List());
    print('Icon generated successfully: ${file.path}');
  }
}

void main() async {
  await generateIcon();
}