import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:hgdj/assets_tool/images.dart';
import 'package:hgdj/hj_model/video_model.dart';
import 'package:hgdj/hj_page/drama/drama_detail_page.dart';
import 'package:hgdj/hj_page/drama/drama_list_page.dart';
import 'package:hgdj/hj_page/short_video/view/media_action_menu.dart';
import 'package:hgdj/hj_page/short_video/view/video_menu_kit.dart';
import 'package:hgdj/hj_utils/const.dart';
import 'package:hgdj/hj_utils/screen.dart';
import 'package:video_player/video_player.dart';

import '../../../tools_base/widget/shrink_wrap.dart';

/// 短剧操作台：左侧「剧名 + 第N集 + 标签」+ 右侧动作菜单 + 中间暂停播放按钮。
/// 点赞/收藏/评论/分享全部挂在**剧**上，下载则是当前这一集；短剧没有作者人设
class DramaMenu extends StatefulWidget {
  final VideoPlayerController? playerCtr;
  final VideoModel? videoModel;
  final VoidCallback? onSwitchLine; //切换 CDN 线路后重新起播
  final bool showEntry; //剧名是否带箭头可点进二级页；二级页自身传 false，否则会重复入栈

  /// 信息栏底部要距播放器底多远。由播放器按「进度条 + 剧集条 + 底部安全区」算好传进来——
  /// 写死过一次(40+48)，二级页在带手势条的机型上安全区一顶就和进度条压到一起了
  final double bottomInset;

  const DramaMenu({
    super.key,
    this.playerCtr,
    this.videoModel,
    this.onSwitchLine,
    this.showEntry = true,
    required this.bottomInset,
  });

  @override
  State<DramaMenu> createState() => _DramaMenuState();
}

class _DramaMenuState extends State<DramaMenu> {
  //信息栏各行的上间距(设计稿 剧名→标签行 12)
  double get gapValue => 12;

  VideoModel? get _video => widget.videoModel;

  @override
  void initState() {
    super.initState();
    VideoMenuSwitch.addListen(_menuListen);
  }

  @override
  void dispose() {
    VideoMenuSwitch.removeLister(_menuListen);
    super.dispose();
  }

  void _menuListen(bool isShow) {
    if (mounted) setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.only(bottom: 4),
      child: Stack(
        alignment: Alignment.center,
        children: [
          Container(
            //外层那个 bottom:4 已经占掉一部分，这里补齐到调用方要求的总距离
            padding: EdgeInsets.only(bottom: widget.bottomInset - 4),
            child: Row(
              children: [
                Expanded(
                  child: MenuReveal(
                    visible: VideoMenuSwitch.isShow,
                    offset: const Offset(-0.1, 0), // 隐藏时向左滑出
                    child: _buildLeftPanel(),
                  ),
                ),
                const SizedBox(width: 8),
                Column(
                  mainAxisAlignment: MainAxisAlignment.end,
                  children: [
                    MediaActionMenu(
                      style: MediaStyle.Drama,
                      videoModel: _video,
                      playerCtr: widget.playerCtr,
                      onSwitchLine: widget.onSwitchLine,
                    ),
                  ],
                ),
                12.sizeBoxW,
              ],
            ),
          ),
          if (widget.playerCtr != null)
            CenterPlayPause(controller: widget.playerCtr!),
        ],
      ),
    );
  }

  // ============ 左侧信息栏（剧名 / 第N集 + 标签）============

  Widget _buildLeftPanel() {
    return Container(
      padding: const EdgeInsets.only(left: 16),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisAlignment: MainAxisAlignment.end,
        children: [
          //剧名，二级页里不带箭头也不可点
          _buildTitleItem(),
          //第N集 + 标签
          _buildTagItem(),
        ],
      ),
    );
  }

  Widget _buildTitleItem() {
    final title = _video?.title?.trim() ?? '';
    if (title.isEmpty) return const SizedBox();
    final content = Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        Flexible(
          child: Text(
            title,
            maxLines: 1,
            overflow: TextOverflow.ellipsis,
            style: const TextStyle(
                color: Colors.white, fontSize: 15, fontWeight: FontWeight.w500),
          ),
        ),
        if (widget.showEntry)
          Image.asset('chevron_right.webp'.videoPath, width: 20, height: 20),
      ],
    );
    return Container(
      padding: EdgeInsets.only(top: gapValue),
      child: widget.showEntry
          ? InkWell(enableFeedback: false, onTap: _openDrama, child: content)
          : content,
    );
  }

  Widget _buildTagItem() {
    final episodeText = Text(
      "第${_video?.episodeNo ?? 1}集",
      style: const TextStyle(
          color: Colors.white, fontSize: 13, fontWeight: FontWeight.w500),
    );
    if (_video?.tags?.isNotEmpty != true) {
      return Container(
          padding: EdgeInsets.only(top: gapValue), child: episodeText);
    }
    return Container(
      padding: EdgeInsets.only(top: gapValue),
      child: Row(
        children: [
          episodeText,
          6.sizeBoxW,
          Expanded(child: _tagWrap()),
        ],
      ),
    );
  }

  Widget _tagWrap() {
    return ShrinkWrap(
      spacing: 0,
      runSpacing: 6,
      maxLines: 1,
      children: _video?.tags
              ?.map((e) => InkWell(
                    enableFeedback: false,
                    onTap: () {
                      widget.playerCtr?.pause();
                      //短剧标签要出的是「剧」，不能用视频标签页——那边的卡片点开跳的是视频详情页
                      DramaListPage.toTag(e);
                    },
                    child: Container(
                      padding: const EdgeInsets.fromLTRB(8, 3, 8, 3),
                      margin: const EdgeInsets.only(right: 6),
                      decoration: BoxDecoration(
                        color: const Color(0x0DFFFFFF),
                        borderRadius: BorderRadius.circular(3),
                      ),
                      child: Text(e.name ?? '',
                          style: const TextStyle(
                              color: Color(0xffffffff), fontSize: 11)),
                    ),
                  ))
              .toList() ??
          [],
    );
  }

  /// 进短剧二级页，定位到当前这一集。只有刷剧模式挂得上(二级页 showEntry=false)
  void _openDrama() {
    widget.playerCtr?.pause();
    final index = (_video?.episodeNo ?? 1) - 1;
    //把这一刻的集数+秒数带进连播模式，写法与 DramaVideoPlayer._openDrama 一致
    Get.to(
      () => DramaDetailPage(
        drama: _video?.dramaInfo,
        initialIndex: index < 0 ? 0 : index,
        initialSeconds: widget.playerCtr?.value.position.inSeconds ?? 0,
      ),
    );
  }
}