import 'dart:io';

import 'package:better_player_plus/better_player_plus.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:go_router/go_router.dart';
import 'package:news_app/constant/config.dart';
import 'package:news_app/constant/size_res.dart';
import 'package:news_app/extension/base.dart';
import 'package:news_app/model/video_new_model.dart';
import 'package:news_app/ui/video/comment_page.dart';
import 'package:news_app/ui/video/video_recommend_list_page.dart';
import 'package:news_app/util/device_util.dart';
import 'package:news_app/util/share_util.dart';
import 'package:news_app/widget/my_txt.dart';

import '../../constant/color_res.dart';
import '../../provider/video_detail_provider.dart';
import '../../util/theme_util.dart';
import '../../widget/auth_gesture_detector.dart';
import '../../widget/load_image.dart';

/// @author: bo.zeng
/// @email: cnhbwds@gmail.com
/// @date: 2025 2025/4/9 16:00
/// @description:
class VideoParam {
  final String id;
  final String? videoUrl;

  VideoParam({required this.id, this.videoUrl});
}

class VideoDetailPage extends ConsumerStatefulWidget {
  final VideoParam param;

  const VideoDetailPage({super.key, required this.param});

  @override
  ConsumerState<VideoDetailPage> createState() => _VideoDetailPageState();
}

final videoDetailProvider =
    NotifierProvider<VideoDetailProvider, VideoNewModel>(
      () => VideoDetailProvider(),
    );

class _VideoDetailPageState extends ConsumerState<VideoDetailPage>
    with WidgetsBindingObserver {
  BetterPlayerController? _betterPlayerController;
  ProviderSubscription? subscription;

  bool _isWeChatInstalled = false;

  Future<void> _checkWeChatInstallation() async {
    if (Platform.isAndroid) {
      final installed = await isWeChatInstalledOnlyAndroid();
      setState(() => _isWeChatInstalled = installed);
    } else if (Platform.isIOS) {
      final installed = await fluwx.isWeChatInstalled;
      setState(() => _isWeChatInstalled = installed);
    }
  }

  Future<void> shareAction(VideoNewModel data) async {
    showModalBottomSheet(
      context: context,
      builder:
          (context) => SafeArea(
            child: Column(
              mainAxisSize: MainAxisSize.min,
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                SizedBox(height: 10.h),
                Container(
                  width: double.infinity,
                  height: 80.h,
                  decoration: BoxDecoration(
                    borderRadius: BorderRadius.only(
                      topLeft: Radius.circular(10.r),
                      topRight: Radius.circular(10.r),
                    ),
                    color: Colors.white,
                  ),
                  child: Row(
                    crossAxisAlignment: CrossAxisAlignment.center,
                    mainAxisAlignment: MainAxisAlignment.spaceBetween,
                    children: [
                      if (_isWeChatInstalled)
                        GestureDetector(
                          onTap: () {
                            Navigator.pop(context);
                            shareWeiXinUrl(
                              title: data.shareDesc ?? "",
                              url: data.shareUrl ?? "",
                            );
                          },
                          child: Container(
                            width: 100.w,
                            height: 80.h,
                            child: Column(
                              crossAxisAlignment: CrossAxisAlignment.center,
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                LoadAssetImage(
                                  'share_wxhy',
                                  width: 40.w,
                                  height: 40.h,
                                ),
                                SizedBox(height: 10.h),
                                myTxt(
                                  text: "微信好友",
                                  color: Colors.black,
                                  fontSize: 12.sp,
                                  fontWeight: FontWeight.bold,
                                ),
                              ],
                            ),
                          ),
                        ),
                      if (_isWeChatInstalled)
                        GestureDetector(
                          onTap: () {
                            Navigator.pop(context);
                            shareWeiXinPYUrl(
                              title: data.shareDesc ?? "",
                              url: data.shareUrl ?? "",
                            );
                          },
                          child: Container(
                            width: 100.w,
                            height: 80.h,
                            child: Column(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                LoadAssetImage(
                                  'share_pyq',
                                  width: 40.w,
                                  height: 40.h,
                                ),
                                SizedBox(height: 10.h),
                                myTxt(
                                  text: "朋友圈",
                                  color: Colors.black,
                                  fontSize: 12.sp,
                                  fontWeight: FontWeight.bold,
                                ),
                              ],
                            ),
                          ),
                        ),
                      GestureDetector(
                        onTap: () {
                          Navigator.pop(context);
                          shareUrl(
                            title: data.shareDesc ?? "",
                            url: data.shareUrl ?? "",
                          );
                        },
                        child: Container(
                          width: 100.w,
                          height: 80.h,
                          child: Column(
                            mainAxisAlignment: MainAxisAlignment.center,
                            children: [
                              LoadAssetImage(
                                'share_xtfx',
                                width: 40.w,
                                height: 40.h,
                              ),
                              SizedBox(height: 10.h),
                              myTxt(
                                text: "系统分享",
                                color: Colors.black,
                                fontSize: 12.sp,
                                fontWeight: FontWeight.bold,
                              ),
                            ],
                          ),
                        ),
                      ),
                    ],
                  ),
                ),
              ],
            ),
          ),
    );
  }

  @override
  void dispose() {
    _betterPlayerController?.dispose();
    subscription?.close();
    super.dispose();
  }

  @override
  void deactivate() {
    super.deactivate();
    _betterPlayerController?.pause();
  }

  @override
  void initState() {
    super.initState();
    setImmersiveStatusBar();
    _checkWeChatInstallation();
    ref.read(videoDetailProvider.notifier).fetchVideoDetail(widget.param.id);
    if (widget.param.videoUrl?.isNotEmpty == true) {
      _initPlayer(widget.param.videoUrl);
    } else {
      subscription = ref.listenManual(videoDetailProvider, (pre, next) {
        if (pre?.url != next.url && next.url?.isNotEmpty == true) {
          _initPlayer(next.url);
        }
      });
    }

    // 监听 App 生命周期变化
    WidgetsBinding.instance.addObserver(this);
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    super.didChangeAppLifecycleState(state);
    if (_betterPlayerController == null) return;

    if (state == AppLifecycleState.inactive ||
        state == AppLifecycleState.paused) {
      // App进入后台或锁屏，暂停播放
      _betterPlayerController?.pause();
    } else if (state == AppLifecycleState.resumed) {
      // App回到前台（是否继续播放可根据需求选择）如果希望回到前台自动播放，就取消注释
      // _betterPlayerController?.play();
    }
  }

  void _initPlayer(String? url) {
    if (url == null || url.isEmpty) {
      return;
    }
    _betterPlayerController?.dispose(); // dispose 旧的
    final dataSource = BetterPlayerDataSource(
      BetterPlayerDataSourceType.network,
      url,
      videoFormat: BetterPlayerVideoFormat.other, // 避免格式识别失败
    );

    _betterPlayerController = BetterPlayerController(
      BetterPlayerConfiguration(
        errorBuilder: (context, errorMessage) {
          return Center(
            child: myTxt(text: "视频加载失败", color: Colors.white, fontSize: 14.sp),
          );
        },
        autoPlay: true,
        aspectRatio: 16 / 9,
        fit: BoxFit.fitWidth,
        controlsConfiguration: const BetterPlayerControlsConfiguration(
          showControls: false,
        ),
      ),
      betterPlayerDataSource: dataSource,
    );
  }

  @override
  Widget build(BuildContext context) {
    final video = ref.watch(videoDetailProvider);
    return Material(
      color: Colors.black,
      child: Stack(
        fit: StackFit.expand,
        alignment: Alignment.centerRight,
        children: [
          if (_betterPlayerController != null && video.url?.isNotEmpty == true)
            ColoredBox(
              color: Colors.black,
              child: AspectRatio(
                aspectRatio: 16 / 9,
                child: BetterPlayer(controller: _betterPlayerController!),
              ),
            )
          else
            Center(
              child: myTxt(
                text: "视频加载中...",
                color: Colors.white,
                fontSize: 14.sp,
              ),
            ),
          Positioned(
            left: 20.w,
            top: 54.h,
            child: GestureDetector(
              onTap: () => context.pop(),
              child: Icon(Icons.arrow_back_ios, color: Colors.white),
            ),
          ),
          Positioned(
            right: 20.h,
            bottom: 150.h,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                SizedBox(height: 100.h),
                AuthGestureDetector(
                  onTap: () {
                    ref
                        .read(videoDetailProvider.notifier)
                        .likeVideo(video.isLiked ?? false);
                    ref
                        .read(recommendListProvider.notifier)
                        .fetchVideoLike(
                          videoId: widget.param.id,
                          current: video.isLiked ?? false,
                        );
                  },
                  child: Icon(
                    Icons.favorite,
                    color: video.isLiked == true ? Colors.red : Colors.white,
                    size: 25.sp,
                  ),
                ),
                myTxt(
                  text: video.likeCount.toSafeString,
                  color: Colors.white,
                  fontSize: 12.sp,
                ),
                SizedBox(height: 15.h),
                AuthGestureDetector(
                  onTap: () {
                    String? contentId = video.contentId;
                    String? title = video.title;
                    //1.活动中的视频 2.视频Tab进来的普通视频
                    _showBottomCommentDialog(
                      context,
                      contentId,
                      title,
                      CommentType.video,
                    );
                  },
                  child: Icon(Icons.message, color: Colors.white, size: 25.sp),
                ),
                myTxt(
                  text: video.commentCount.toSafeString,
                  color: Colors.white,
                  fontSize: 12.sp,
                ),
                SizedBox(height: 15.h),
                AuthGestureDetector(
                  onTap: () {
                    ref
                        .read(videoDetailProvider.notifier)
                        .favoriteVideo(video.isFavorite ?? false);
                    ref
                        .read(recommendListProvider.notifier)
                        .fetchVideoFavorite(
                          videoId: widget.param.id,
                          current: video.isFavorite ?? false,
                        );
                  },
                  child: Icon(
                    Icons.star,
                    color: video.isFavorite == true ? Colors.red : Colors.white,
                    size: 25.sp,
                  ),
                ),
                myTxt(
                  text: video.favoriteCount.toSafeString,
                  color: Colors.white,
                  fontSize: 12.sp,
                ),
                SizedBox(height: 15.h),
                GestureDetector(
                  onTap: () {
                    // shareUrl(
                    //   title: video.shareDesc ?? "",
                    //   url: video.shareUrl ?? "",
                    // );
                    shareAction(video);
                    if (uuid.isNotEmpty) {
                      ref
                          .read(recommendListProvider.notifier)
                          .fetchVideoShare(contentId: widget.param.id);
                    }
                  },
                  child: Icon(
                    Icons.screen_share,
                    color: Colors.white,
                    size: 25.sp,
                  ),
                ),
                myTxt(
                  text: video.shareCount.toSafeString,
                  color: Colors.white,
                  fontSize: 12.sp,
                ),
                SizedBox(height: 15.h),
              ],
            ),
          ),
        ],
      ),
    );
  }

  void _showBottomCommentDialog(
    BuildContext ctx,
    String? contentId,
    String? title,
    CommentType commentType,
  ) {
    showModalBottomSheet(
      useSafeArea: true,
      backgroundColor: Colors.white,
      context: ctx,
      isScrollControlled: true,
      // 允许内容滚动并控制高度
      builder: (context) {
        return Container(
          padding: EdgeInsets.all(horizontalPadding),
          height: screenHeight * 0.7,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              SizedBox(height: 15.h),
              myTxt(text: title ?? "", color: color333333, fontSize: 15.sp),
              Container(
                height: 0.5,
                width: screenWidth,
                color: colorE5E5E5,
                margin: EdgeInsets.symmetric(vertical: 10.h),
              ),
              Expanded(
                child: CommentPage(
                  type: commentType,
                  articleId: contentId ?? "",
                ),
              ),
            ],
          ),
        );
      },
    );
  }
}