import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:pilipala/common/skeleton/video_card_h.dart';
import 'package:pilipala/common/widgets/http_error.dart';
import 'package:pilipala/common/widgets/no_data.dart';
import 'package:pilipala/common/widgets/video_card_h.dart';
import 'package:pilipala/pages/later/index.dart';
import 'package:pilipala/utils/route_push.dart';

class LaterPage extends StatefulWidget {
  const LaterPage({super.key});

  @override
  State<LaterPage> createState() => _LaterPageState();
}

class _LaterPageState extends State<LaterPage> {
  final LaterController _laterController = Get.put(LaterController());
  Future? _futureBuilderFuture;

  @override
  void initState() {
    _futureBuilderFuture = _laterController.queryLaterList();
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        titleSpacing: 0,
        centerTitle: false,
        title: Obx(
          () => _laterController.laterList.isNotEmpty
              ? Text(
                  '稍后再看 (${_laterController.laterList.length})',
                  style: Theme.of(context).textTheme.titleMedium,
                )
              : Text(
                  '稍后再看',
                  style: Theme.of(context).textTheme.titleMedium,
                ),
        ),
        actions: [
          Obx(
            () => _laterController.laterList.isNotEmpty
                ? TextButton(
                    onPressed: () => _laterController.toViewDel(),
                    child: const Text('移除已看'),
                  )
                : const SizedBox(),
          ),
          Obx(
            () => _laterController.laterList.isNotEmpty
                ? IconButton(
                    tooltip: '一键清空',
                    onPressed: () => _laterController.toViewClear(),
                    icon: Icon(
                      Icons.clear_all_outlined,
                      size: 21,
                      color: Theme.of(context).colorScheme.primary,
                    ),
                  )
                : const SizedBox(),
          ),
          const SizedBox(width: 8),
        ],
      ),
      body: CustomScrollView(
        controller: _laterController.scrollController,
        slivers: [
          FutureBuilder(
            future: _futureBuilderFuture,
            builder: (context, snapshot) {
              if (snapshot.connectionState == ConnectionState.done) {
                Map? data = snapshot.data;
                if (data != null && data['status']) {
                  return Obx(
                    () => _laterController.laterList.isNotEmpty &&
                            !_laterController.isLoading.value
                        ? SliverList(
                            delegate:
                                SliverChildBuilderDelegate((context, index) {
                              var videoItem = _laterController.laterList[index];
                              return VideoCardH(
                                  videoItem: videoItem,
                                  source: 'later',
                                  onPressedFn: () => _laterController.toViewDel(
                                      aid: videoItem.aid));
                            }, childCount: _laterController.laterList.length),
                          )
                        : _laterController.isLoading.value
                            ? const SliverToBoxAdapter(
                                child: Center(child: Text('加载中')),
                              )
                            : const NoData(),
                  );
                } else {
                  return HttpError(
                    errMsg: data?['msg'] ?? '请求异常',
                    btnText: data?['code'] == -101 ? '去登录' : null,
                    fn: () {
                      if (data?['code'] == -101) {
                        RoutePush.loginRedirectPush();
                      } else {
                        setState(() {
                          _futureBuilderFuture =
                              _laterController.queryLaterList();
                        });
                      }
                    },
                  );
                }
              } else {
                // 骨架屏
                return SliverList(
                  delegate: SliverChildBuilderDelegate((context, index) {
                    return const VideoCardHSkeleton();
                  }, childCount: 10),
                );
              }
            },
          ),
          SliverToBoxAdapter(
            child: SizedBox(
              height: MediaQuery.of(context).padding.bottom + 10,
            ),
          )
        ],
      ),
      floatingActionButton: Obx(
        () => _laterController.laterList.isNotEmpty
            ? FloatingActionButton.extended(
                onPressed: _laterController.toViewPlayAll,
                label: const Text('播放全部'),
                icon: const Icon(Icons.playlist_play),
              )
            : const SizedBox(),
      ),
    );
  }
}