import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';

class StatusChip extends StatefulWidget {
  final String text;
  final Color color;
  final IconData? icon;
  final String? svgPath;
  final Color? svgColor;
  final bool breathing;
  final VoidCallback? onTap;

  const StatusChip({
    super.key,
    required this.text,
    required this.color,
    this.icon,
    this.svgPath,
    this.svgColor,
    this.breathing = false,
    this.onTap,
  }) : assert(icon != null || svgPath != null, '必须提供 icon 或 svgPath 其中之一');

  @override
  State<StatusChip> createState() => _StatusChipState();
}

class _StatusChipState extends State<StatusChip>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  late Animation<double> _opacityAnimation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 1000),
    );
    if (widget.breathing) _controller.repeat(reverse: true);

    // 动画区间从 0.3 到 1.0
    _opacityAnimation = Tween<double>(
      begin: 0.3,
      end: 1.0,
    ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
  }

  @override
  void didUpdateWidget(StatusChip oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (widget.breathing != oldWidget.breathing) {
      widget.breathing ? _controller.repeat(reverse: true) : _controller.stop();
    }
  }

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

  @override
  Widget build(BuildContext context) {
    // 【关键】获取颜色传入时的透明度（比如你传了 0.6，baseOpacity 就是 0.6）
    final double baseOpacity = widget.color.opacity;

    return AnimatedBuilder(
      animation: _opacityAnimation,
      builder: (context, child) {
        // 【关键】如果不呼吸，直接用 baseOpacity，不再强制给 1.0
        final currentAlpha = widget.breathing
            ? _opacityAnimation.value * baseOpacity
            : baseOpacity;

        return GestureDetector(
          onTap: widget.onTap,
          child: Container(
            padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
            decoration: BoxDecoration(
              // 这里应用计算后的透明度
              color: widget.color.withOpacity(currentAlpha),
              borderRadius: BorderRadius.circular(12),
              border: Border.all(
                color: Colors.white.withOpacity(0.15),
                width: 0.5,
              ),
            ),
            child: Row(
              mainAxisSize: MainAxisSize.min,
              children: [
                if (widget.svgPath != null)
                  SvgPicture.asset(
                    widget.svgPath!,
                    width: 14,
                    height: 14,
                    colorFilter: ColorFilter.mode(
                      widget.svgColor ?? Colors.white,
                      BlendMode.srcIn,
                    ),
                  )
                else
                  Icon(
                    widget.icon,
                    color: widget.svgColor ?? Colors.white,
                    size: 14,
                  ),
                const SizedBox(width: 5),
                Text(
                  widget.text,
                  style: const TextStyle(
                    color: Colors.white,
                    fontSize: 13,
                    fontWeight: FontWeight.w600,
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}