import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:im_flutter_sdk/im_flutter_sdk.dart';
import 'package:get/get.dart';
import 'package:video_player/video_player.dart';
import 'package:dating_touchme_app/pages/message/video_player_page.dart';

class VideoItem extends StatefulWidget {
  final EMVideoMessageBody videoBody;
  final bool isSentByMe;
  final bool showTime;
  final String formattedTime;

  const VideoItem({
    required this.videoBody,
    required this.isSentByMe,
    required this.showTime,
    required this.formattedTime,
    super.key,
  });

  @override
  State<VideoItem> createState() => _VideoItemState();
}

class _VideoItemState extends State<VideoItem> {
  VideoPlayerController? _controller;
  bool _isInitialized = false;
  String? _thumbnailPath;

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

  Future<void> _initializeVideo() async {
    try {
      // 获取本地视频路径
      final localPath = widget.videoBody.localPath;
      final remotePath = widget.videoBody.remotePath;
      
      print('=== 视频消息调试信息 ===');
      print('本地路径: $localPath');
      print('远程路径: $remotePath');
      print('视频时长: ${widget.videoBody.duration}秒');
      
      if (localPath.isNotEmpty && File(localPath).existsSync()) {
        // 使用本地文件
        print('使用本地视频文件');
        _controller = VideoPlayerController.file(File(localPath));
      } else if (remotePath != null && remotePath.isNotEmpty) {
        // 使用远程URL
        print('使用远程视频URL');
        _controller = VideoPlayerController.networkUrl(Uri.parse(remotePath));
      } else {
        print('⚠️ 警告: 没有可用的视频路径');
      }

      if (_controller != null) {
        await _controller!.initialize();
        setState(() {
          _isInitialized = true;
        });
        print('✅ 视频初始化成功');
      }

      // 获取缩略图路径
      final thumbLocal = widget.videoBody.thumbnailLocalPath;
      final thumbRemote = widget.videoBody.thumbnailRemotePath;
      
      print('缩略图本地路径: $thumbLocal');
      print('缩略图远程路径: $thumbRemote');
      
      if (thumbLocal != null && thumbLocal.isNotEmpty) {
        _thumbnailPath = thumbLocal;
        print('使用本地缩略图');
      } else if (thumbRemote != null && thumbRemote.isNotEmpty) {
        _thumbnailPath = thumbRemote;
        print('使用远程缩略图');
      } else {
        print('⚠️ 警告: 没有可用的缩略图');
      }
      print('======================');
    } catch (e) {
      print('❌ 初始化视频失败: $e');
    }
  }

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

  // 构建时间标签
  Widget _buildTimeLabel() {
    return Container(
      alignment: Alignment.center,
      padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 8.h),
      child: Container(
        padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 4.h),
        child: Text(
          widget.formattedTime,
          style: TextStyle(fontSize: 12.sp, color: Colors.grey),
        ),
      ),
    );
  }

  // 格式化时长
  String _formatDuration(int seconds) {
    final minutes = seconds ~/ 60;
    final secs = seconds % 60;
    return '${minutes.toString().padLeft(2, '0')}:${secs.toString().padLeft(2, '0')}';
  }

  // 播放视频
  void _playVideo() {
    // 获取视频路径
    final localPath = widget.videoBody.localPath;
    final remotePath = widget.videoBody.remotePath;
    
    String? videoPath;
    bool isNetwork = false;
    
    // 优先使用本地路径
    if (localPath.isNotEmpty && File(localPath).existsSync()) {
      videoPath = localPath;
      isNetwork = false;
    } else if (remotePath != null && remotePath.isNotEmpty) {
      videoPath = remotePath;
      isNetwork = true;
    }
    
    if (videoPath != null) {
      // 使用 Chewie 播放器页面
      Get.to(
        () => VideoPlayerPage(
          videoPath: videoPath!,
          isNetwork: isNetwork,
        ),
        transition: Transition.fade,
        duration: const Duration(milliseconds: 200),
      );
    } else {
      Get.snackbar(
        '提示',
        '视频路径不可用',
        snackPosition: SnackPosition.BOTTOM,
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        if (widget.showTime) _buildTimeLabel(),
        Container(
          padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 4.h),
          child: Row(
            mainAxisAlignment: widget.isSentByMe
                ? MainAxisAlignment.end
                : MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              // 视频消息气泡
              GestureDetector(
                onTap: _playVideo,
                child: Container(
                  width: 200.w,
                  height: 150.h,
                  decoration: BoxDecoration(
                    color: Colors.grey[300],
                    borderRadius: BorderRadius.circular(8.w),
                  ),
                  child: ClipRRect(
                    borderRadius: BorderRadius.circular(8.w),
                    child: Stack(
                      fit: StackFit.expand,
                      children: [
                        // 背景层：始终显示占位符
                        Container(
                          color: Colors.grey[300],
                          child: Icon(
                            Icons.videocam,
                            size: 48.w,
                            color: Colors.grey[600],
                          ),
                        ),
                        // 视频层或缩略图层
                        if (_isInitialized && _controller != null)
                          Center(
                            child: AspectRatio(
                              aspectRatio: _controller!.value.aspectRatio,
                              child: VideoPlayer(_controller!),
                            ),
                          )
                        else if (_thumbnailPath != null && _thumbnailPath!.isNotEmpty)
                          _buildThumbnail(),
                        // 播放按钮和时长覆盖层
                        Container(
                          decoration: BoxDecoration(
                            gradient: LinearGradient(
                              begin: Alignment.topCenter,
                              end: Alignment.bottomCenter,
                              colors: [
                                Colors.transparent,
                                Colors.black.withOpacity(0.4),
                              ],
                            ),
                          ),
                          child: Column(
                            mainAxisAlignment: MainAxisAlignment.center,
                            children: [
                              // 播放按钮
                              Icon(
                                Icons.play_circle_filled,
                                size: 56.w,
                                color: Colors.white.withOpacity(0.9),
                              ),
                              SizedBox(height: 8.h),
                              // 视频时长
                              Container(
                                padding: EdgeInsets.symmetric(
                                  horizontal: 8.w,
                                  vertical: 4.h,
                                ),
                                decoration: BoxDecoration(
                                  color: Colors.black.withOpacity(0.6),
                                  borderRadius: BorderRadius.circular(4.w),
                                ),
                                child: Text(
                                  _formatDuration(widget.videoBody.duration ?? 0),
                                  style: TextStyle(
                                    fontSize: 12.sp,
                                    color: Colors.white,
                                    fontWeight: FontWeight.w500,
                                  ),
                                ),
                              ),
                            ],
                          ),
                        ),
                      ],
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ],
    );
  }

  // 构建缩略图
  Widget _buildThumbnail() {
    if (_thumbnailPath == null || _thumbnailPath!.isEmpty) {
      return const SizedBox.shrink();
    }

    // 判断是本地路径还是远程路径
    if (_thumbnailPath!.startsWith('http')) {
      return Image.network(
        _thumbnailPath!,
        fit: BoxFit.cover,
        width: double.infinity,
        height: double.infinity,
        errorBuilder: (context, error, stackTrace) {
          return const SizedBox.shrink();
        },
      );
    } else {
      final file = File(_thumbnailPath!);
      if (file.existsSync()) {
        return Image.file(
          file,
          fit: BoxFit.cover,
          width: double.infinity,
          height: double.infinity,
        );
      } else {
        return const SizedBox.shrink();
      }
    }
  }
}