import 'package:flutter/material.dart';
import 'package:get/get.dart';
import '../controllers/agent_controller.dart';

/// 声音柱动画组件 (已优化)
/// 用于显示语音输入时的音频波形效果
class SoundBarWidget extends StatefulWidget {
  final double delay;
  final bool isActive;

  const SoundBarWidget({
    Key? key,
    required this.delay,
    required this.isActive,
  }) : super(key: key);

  @override
  State<SoundBarWidget> createState() => _SoundBarWidgetState();
}

class _SoundBarWidgetState extends State<SoundBarWidget>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  late Animation<double> _animation;

  @override
  void initState() {
    super.initState();

    _controller = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 500),
    );

    _animation = Tween<double>(begin: 3, end: 18).animate(
      CurvedAnimation(
        parent: _controller,
        curve: Curves.easeInOut,
      ),
    );
    // 移除了 .addListener(() { setState(() {}); })

    _startOrStopAnimation();
  }

  @override
  void didUpdateWidget(SoundBarWidget oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (widget.isActive != oldWidget.isActive) {
      _startOrStopAnimation();
    }
  }

  /// 开始或停止动画
  void _startOrStopAnimation() {
    // 确保组件仍然挂载在树上
    if (!mounted) return;

    if (widget.isActive) {
      Future.delayed(Duration(milliseconds: (widget.delay * 1000).toInt()), () {
        if (mounted && widget.isActive) {
          _controller.repeat(reverse: true);
        }
      });
    } else {
      // 停止并平滑地过渡到初始状态
      _controller.stop();
      _controller.animateTo(0.0,
          duration: const Duration(milliseconds: 200), curve: Curves.easeOut);
    }
  }

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

  @override
  Widget build(BuildContext context) {
    final primaryColor = Theme.of(context).primaryColor;

    // 使用 AnimatedBuilder 来优化性能
    return AnimatedBuilder(
      animation: _animation,
      builder: (context, child) {
        return Container(
          width: 2.5,
          // 当动画不活跃时，高度固定为3；活跃时使用动画值
          height: widget.isActive ? _animation.value : 3,
          margin: const EdgeInsets.symmetric(horizontal: 1),
          decoration: BoxDecoration(
            color: widget.isActive
                ? primaryColor.withOpacity(0.8)
                : Colors.grey.withOpacity(0.4),
            borderRadius: BorderRadius.circular(1.5),
          ),
        );
      },
    );
  }
}

/// 声音柱组合组件 (无需改动)
/// 包含多个声音柱的组合显示
class SoundBarsWidget extends StatelessWidget {
  final bool isActive;
  final int barCount;

  const SoundBarsWidget({
    Key? key,
    required this.isActive,
    this.barCount = 10,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: List.generate(barCount, (index) {
        return Padding(
          padding: const EdgeInsets.symmetric(horizontal: 1),
          child: SoundBarWidget(
            delay: index * 0.1,
            isActive: isActive,
          ),
        );
      }),
    );
  }
}

/// 带控制器集成的声音柱组件 (无需改动)
/// 自动从AgentController获取状态
class AgentSoundBarsWidget extends StatelessWidget {
  final int barCount;

  const AgentSoundBarsWidget({
    Key? key,
    this.barCount = 10,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Obx(() {
      final controller = Get.find<AgentController>();
      final shouldShowAnimation =
          controller.isListening.value || controller.isPushToTalkActive.value;
      return SoundBarsWidget(
        isActive: shouldShowAnimation,
        barCount: barCount,
      );
    });
  }
}