import 'dart:math' as math;
import 'package:flutter/material.dart';

class CozyWave extends StatefulWidget {
  final double percentage;
  final Color color;

  const CozyWave({super.key, required this.percentage, required this.color});

  @override
  State<CozyWave> createState() => _CozyWaveState();
}

class _CozyWaveState extends State<CozyWave>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      vsync: this,
      duration: const Duration(seconds: 3),
    )..repeat();
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return AnimatedBuilder(
      animation: _controller,
      builder: (context, child) {
        return ClipPath(
          clipper: WaveClipper(_controller.value, widget.percentage),
          child: Container(
            height: double.infinity,
            width: double.infinity,
            decoration: BoxDecoration(
              gradient: LinearGradient(
                begin: Alignment.topCenter,
                end: Alignment.bottomCenter,
                colors: [widget.color, widget.color.withOpacity(0.8)],
              ),
            ),
          ),
        );
      },
    );
  }
}

class WaveClipper extends CustomClipper<Path> {
  final double animationValue;
  final double percentage;

  WaveClipper(this.animationValue, this.percentage);

  @override
  Path getClip(Size size) {
    final path = Path();
    final double baseHeight = size.height * (1 - percentage);
    path.moveTo(0, baseHeight);
    for (double i = 0; i <= size.width; i++) {
      path.lineTo(
        i,
        baseHeight +
            math.sin(
                  (i / size.width * 2 * math.pi) +
                      (animationValue * 2 * math.pi),
                ) *
                8,
      );
    }
    path.lineTo(size.width, size.height);
    path.lineTo(0, size.height);
    path.close();
    return path;
  }

  @override
  bool shouldReclip(WaveClipper oldClipper) => true;
}