import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Center(
          child: _FrameSquare(
        height: 200,
        width: 200,
        borderRadius: 4,
        lineWidth: 4,
      )),
    );
  }
}

class _FrameSquare extends StatelessWidget {
  const _FrameSquare({
    required this.height,
    required this.width,
    required this.borderRadius,
    required this.lineWidth,
  });
  final double height;
  final double width;
  final double borderRadius;
  final double lineWidth;
  @override
  Widget build(BuildContext context) {
    return Center(
      child: CustomPaint(
        size: Size(width, height),
        painter: _FrameBorderPainter(
          borderRadius: borderRadius,
          lineWidth: lineWidth,
        ),
      ),
    );
  }
}

class _FrameBorderPainter extends CustomPainter {
  _FrameBorderPainter({required this.borderRadius, required this.lineWidth});
  final double borderRadius;
  final double lineWidth;
  @override
  void paint(Canvas canvas, Size size) {
    final legLength = size.width * 0.3;
    final paint = Paint();
    paint.color = const Color(0xFFFF69b4);
    paint.style = PaintingStyle.stroke;
    paint.strokeCap = StrokeCap.round;
    paint.strokeWidth = lineWidth;

    final path = Path()
      // top left
      ..moveTo(0, legLength)
      ..lineTo(0, borderRadius)
      ..arcToPoint(
        Offset(borderRadius, 0),
        radius: Radius.circular(borderRadius),
      )
      ..lineTo(legLength, 0)
      // top right
      ..moveTo(size.width - legLength, 0)
      ..lineTo(size.width - borderRadius, 0)
      ..arcToPoint(
        Offset(size.width, borderRadius),
        radius: Radius.circular(borderRadius),
      )
      ..lineTo(size.width, legLength)
      // bottom right
      ..moveTo(size.width, size.height - legLength)
      ..lineTo(size.width, size.height - borderRadius)
      ..arcToPoint(
        Offset(size.width - borderRadius, size.height),
        radius: Radius.circular(borderRadius),
      )
      ..lineTo(size.width - legLength, size.height)
      // bottom right
      ..moveTo(legLength, size.height)
      ..lineTo(borderRadius, size.height)
      ..arcToPoint(
        Offset(0, size.height - borderRadius),
        radius: Radius.circular(borderRadius),
      )
      ..lineTo(0, size.height - legLength)
      ..moveTo(0, legLength)
      ..close();

    canvas.drawPath(path, paint);
  }

  @override
  bool shouldRepaint(covariant CustomPainter oldDelegate) {
    return false;
  }
}