// Custom painter for drawing a continuous wavy filled circle with heartbeat effect
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'dart:math' as math;

class FilledWaveRingPainter extends CustomPainter {
  final double animationValue;

  FilledWaveRingPainter(this.animationValue);

  @override
  void paint(Canvas canvas, Size size) {
    Paint paint = Paint()
      ..color = Colors.orange.withOpacity(0.8)
      ..style = PaintingStyle.fill;

    Path path = Path();

    // Modify wave amplitude to create a heartbeat-like effect
    double waveAmplitude =
        10 + 10 * math.sin(animationValue * 2 * math.pi); // Varying amplitude
    double waveFrequency = 5; // Frequency of the wave oscillation

    // Draw a continuous filled wave path around the circumference of the circle
    path.moveTo(size.width / 2, size.height / 2);

    for (double angle = 0; angle <= 2 * math.pi; angle += 0.02) {
      double radius = size.width / 2;
      double x = (size.width / 2) +
          (radius + waveAmplitude * math.sin(waveFrequency * angle)) *
              math.cos(angle);
      double y = (size.height / 2) +
          (radius + waveAmplitude * math.sin(waveFrequency * angle)) *
              math.sin(angle);

      path.lineTo(x, y);
    }

    path.close();

    // Draw the filled wave path
    canvas.drawPath(path, paint);
  }

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