import 'package:PiliPlus/common/skeleton/video_card_h.dart';
import 'package:PiliPlus/common/widgets/custom_sliver_persistent_header_delegate.dart';
import 'package:PiliPlus/common/widgets/loading_widget/http_error.dart';
import 'package:PiliPlus/common/widgets/refresh_indicator.dart';
import 'package:PiliPlus/common/widgets/video_card/video_card_h_member_video.dart';
import 'package:PiliPlus/http/loading_state.dart';
import 'package:PiliPlus/models/common/member/contribute_type.dart';
import 'package:PiliPlus/models/space_archive/item.dart';
import 'package:PiliPlus/pages/member/controller.dart';
import 'package:PiliPlus/pages/member_video/controller.dart';
import 'package:PiliPlus/utils/grid.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';

class MemberVideo extends StatefulWidget {
  const MemberVideo({
    super.key,
    required this.type,
    required this.heroTag,
    required this.mid,
    this.seasonId,
    this.seriesId,
    this.title,
  });

  final ContributeType type;
  final String? heroTag;
  final int mid;
  final int? seasonId;
  final int? seriesId;
  final String? title;

  @override
  State<MemberVideo> createState() => _MemberVideoState();
}

class _MemberVideoState extends State<MemberVideo>
    with AutomaticKeepAliveClientMixin {
  @override
  bool get wantKeepAlive => true;

  late final _controller = Get.put(
    MemberVideoCtr(
      type: widget.type,
      mid: widget.mid,
      seasonId: widget.seasonId,
      seriesId: widget.seriesId,
      username: Get.find<MemberController>(tag: widget.heroTag).username,
      title: widget.title,
    ),
    tag:
        '${widget.heroTag}${widget.type.name}${widget.seasonId}${widget.seriesId}',
  );

  @override
  Widget build(BuildContext context) {
    super.build(context);
    final theme = Theme.of(context);
    return Stack(
      clipBehavior: Clip.none,
      children: [
        refreshIndicator(
          onRefresh: _controller.onRefresh,
          child: CustomScrollView(
            // physics: PositionRetainedScrollPhysics(
            //   shouldRetain: _controller.isLocating == true,
            //   parent: const ClampingScrollPhysics(),
            // ),
            slivers: [
              SliverPadding(
                padding: EdgeInsets.only(
                  bottom: MediaQuery.of(context).padding.bottom + 80,
                ),
                sliver: Obx(
                    () => _buildBody(theme, _controller.loadingState.value)),
              ),
            ],
          ),
        ),
        if (widget.type == ContributeType.video &&
            _controller.fromViewAid?.isNotEmpty == true &&
            _controller.isLocating != true)
          Positioned(
            right: 15,
            bottom: 15,
            child: SafeArea(
              top: false,
              left: false,
              child: FloatingActionButton.extended(
                onPressed: () {
                  _controller
                    ..isLocating = true
                    ..lastAid = _controller.fromViewAid
                    ..currentPage = 0
                    ..loadingState.value = LoadingState.loading()
                    ..queryData();
                },
                label: const Text('定位至上次观看'),
              ),
            ),
          ),
      ],
    );
  }

  Widget _buildBody(
      ThemeData theme, LoadingState<List<SpaceArchiveItem>?> loadingState) {
    return switch (loadingState) {
      Loading() => SliverGrid(
          gridDelegate: Grid.videoCardHDelegate(context),
          delegate: SliverChildBuilderDelegate(
            (context, index) {
              return const VideoCardHSkeleton();
            },
            childCount: 10,
          ),
        ),
      Success() => loadingState.response?.isNotEmpty == true
          ? SliverMainAxisGroup(
              slivers: [
                SliverPersistentHeader(
                  pinned: false,
                  floating: true,
                  delegate: CustomSliverPersistentHeaderDelegate(
                    extent: 40,
                    bgColor: theme.colorScheme.surface,
                    child: SizedBox(
                      height: 40,
                      child: Row(
                        children: [
                          const SizedBox(width: 8),
                          Obx(
                            () => Padding(
                              padding: const EdgeInsets.only(left: 6),
                              child: Text(
                                _controller.count.value != -1
                                    ? '共${_controller.count.value}视频'
                                    : '',
                                style: const TextStyle(fontSize: 13),
                              ),
                            ),
                          ),
                          Obx(
                            () => _controller.episodicButton.value.uri != null
                                ? Container(
                                    height: 35,
                                    padding: EdgeInsets.only(
                                        left: _controller.count.value != -1
                                            ? 6
                                            : 0),
                                    child: TextButton.icon(
                                      onPressed: _controller.toViewPlayAll,
                                      icon: Icon(
                                        Icons.play_circle_outline_rounded,
                                        size: 16,
                                        color: theme.colorScheme.secondary,
                                      ),
                                      label: Text(
                                        _controller.episodicButton.value.text ??
                                            '播放全部',
                                        style: TextStyle(
                                          fontSize: 13,
                                          color: theme.colorScheme.secondary,
                                        ),
                                      ),
                                    ),
                                  )
                                : const SizedBox.shrink(),
                          ),
                          const Spacer(),
                          SizedBox(
                            height: 35,
                            child: TextButton.icon(
                              onPressed: _controller.queryBySort,
                              icon: Icon(
                                Icons.sort,
                                size: 16,
                                color: theme.colorScheme.secondary,
                              ),
                              label: Obx(
                                () => Text(
                                  widget.type == ContributeType.video
                                      ? _controller.order.value == 'pubdate'
                                          ? '最新发布'
                                          : '最多播放'
                                      : _controller.sort.value == 'desc'
                                          ? '默认'
                                          : '倒序',
                                  style: TextStyle(
                                    fontSize: 13,
                                    color: theme.colorScheme.secondary,
                                  ),
                                ),
                              ),
                            ),
                          ),
                          const SizedBox(width: 8),
                        ],
                      ),
                    ),
                  ),
                ),
                SliverGrid(
                  gridDelegate: Grid.videoCardHDelegate(context),
                  delegate: SliverChildBuilderDelegate(
                    (context, index) {
                      if (widget.type != ContributeType.season &&
                          index == loadingState.response!.length - 1) {
                        _controller.onLoadMore();
                      }
                      final SpaceArchiveItem item =
                          loadingState.response![index];
                      return VideoCardHMemberVideo(
                        key: ValueKey('${item.param}'),
                        videoItem: item,
                        fromViewAid: _controller.fromViewAid,
                      );
                    },
                    childCount: loadingState.response!.length,
                  ),
                ),
              ],
            )
          : HttpError(
              onReload: _controller.onReload,
            ),
      Error() => HttpError(
          errMsg: loadingState.errMsg,
          onReload: _controller.onReload,
        ),
    };
  }
}