import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';
import 'package:wow_english/common/widgets/throttledGesture_gesture_detector.dart';

import '../../utils/log_util.dart';

/// 录音组件
class RecorderWidget extends StatefulWidget {
  final bool isClickable;
  final bool isPlaying;
  final VoidCallback? onTap;
  final double width;
  final double height;

  const RecorderWidget({
    Key? key,
    this.isClickable = true,
    required this.isPlaying,
    required this.onTap,
    required this.width,
    required this.height,
  }) : super(key: key);

  @override
  _RecorderWidgetState createState() => _RecorderWidgetState();
}

class _RecorderWidgetState extends State<RecorderWidget>
    with SingleTickerProviderStateMixin {
  late final AnimationController _controller;
  late final Future<LottieComposition> _futureComposition;
  static const String TAG = "RecorderWidget";

  bool _isPlaying = false;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(vsync: this);
    _loadComposition();
    if (widget.isPlaying) {
      _playInitialAnimation();
    }

    _controller.addListener(() {
      // Log.d("$TAG addListener _controller=${_controller.status}");
    });
  }

  @override
  void didUpdateWidget(RecorderWidget oldWidget) {
    super.didUpdateWidget(oldWidget);
    Log.d(
        "$TAG ${identityHashCode(this)} didUpdateWidget widget=${widget.isPlaying} oldWidget=${oldWidget.isPlaying} _isPlaying=$_isPlaying");
    if (widget.isPlaying && !_isPlaying) {
      setState(() {
        _isPlaying = true;
      });
      _playInitialAnimation();
    } else if (!widget.isPlaying && _isPlaying) {
      _playFinalAnimation();
    }
  }

  Future<void> _loadComposition() async {
    _futureComposition =
        AssetLottie('assets/lotties/recorder_input.zip').load();
  }

  void _playInitialAnimation() {
    _controller.reset();
    _futureComposition.then((composition) {
      _controller.duration = composition.duration;
      _controller
          .animateTo(22 / composition.endFrame)
          .whenComplete(() => _loopMiddleAnimation(composition));
    });
  }

  void _loopMiddleAnimation(LottieComposition composition) {
    _controller.repeat(
      min: 22 / composition.endFrame,
      max: 37 / composition.endFrame,
    );
  }

  void _playFinalAnimation() {
    _controller.stop();
    _futureComposition.then((composition) {
      _controller.duration = composition.duration;
      _controller
          .animateTo(50 / composition.endFrame)
          .whenComplete(() => _resetAnimation());
    });
  }

  void _resetAnimation() {
    if (mounted) {
      setState(() {
        _isPlaying = false;
        _controller.value = 0;
      });
    }
  }

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

  @override
  Widget build(BuildContext context) {
    return ThrottledGestureDetector(
      onTap: widget.isClickable ? widget.onTap : null,
      child: Opacity(
          opacity: widget.isClickable ? 1.0 : 0.5, // 设置透明度
          child: FutureBuilder<LottieComposition>(
              future: _futureComposition,
              builder: (context, snapshot) {
                if (snapshot.hasData) {
                  final composition = snapshot.data!;
                  return Lottie(
                    composition: composition,
                    controller: _controller,
                    renderCache: RenderCache.raster,
                    width: widget.width,
                    height: widget.height,
                  );
                } else {
                  return const SizedBox.shrink();
                }
              })),
    );
  }
}