// ignore_for_file: public_member_api_docs, sort_constructors_first
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:go_router/go_router.dart';
import 'package:provider/provider.dart';
import 'package:qadirneyriz/config/config.dart';
import 'package:qadirneyriz/screens/meeting/diolog_meetings_filters.dart';
import 'package:qadirneyriz/screens/meeting/state.dart';
import 'package:qadirneyriz/utils/enums/status.dart';
import 'package:qadirneyriz/utils/tools/tools.dart';
import 'package:qadirneyriz/widgets/card_meeting.dart';
import 'package:qadirneyriz/widgets/custom_appbar.dart';
import 'package:qadirneyriz/widgets/empty_widget.dart';
import 'package:qadirneyriz/widgets/error_widget.dart';
import 'package:qadirneyriz/widgets/icon_button.dart';
import 'package:qadirneyriz/widgets/loading_widget.dart';
import 'package:qadirneyriz/widgets/today_widget.dart';
import 'package:shamsi_date/shamsi_date.dart';

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

  @override
  State<MeetingsScreen> createState() => _MeetingsScreenState();
}

class _MeetingsScreenState extends State<MeetingsScreen> {
  late ScrollController _scrollController;
  late MeetingsState meetingsState;

  @override
  void initState() {
    _scrollController = ScrollController();
    _scrollController.addListener(_scrollListener);
    meetingsState = Provider.of<MeetingsState>(context, listen: false);
    Future.delayed(Duration.zero, () async {
      await meetingsState.getMeetings();
      meetingsState.clearFilters();
    });
    super.initState();
  }

  @override
  void dispose() {
    _scrollController.dispose();
    super.dispose();
  }

  _scrollListener() async {
    if (_scrollController.offset >=
            _scrollController.position.maxScrollExtent &&
        !_scrollController.position.outOfRange) {
      if (!meetingsState.pageEndedMeetings) {
        await meetingsState.nextPageMeetings(
            toDate: meetingsState.toDate,
            fromDate: meetingsState.fromDate,
            location: meetingsState.selectedLocationId,
            subject: meetingsState.selectedSubjectId,
            meetingManager: meetingsState.selectedManagersId,
            meetingStatus: meetingsState.selectedStatusId);
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    Jalali nowShamsi = Jalali.now();
    String todayDateForShow =
        '${nowShamsi.day} ${Tools.getMonthName(nowShamsi.month)} ${nowShamsi.year}';
    return Consumer<MeetingsState>(
      builder: (context, value, child) {
        return CustomScrollView(
          controller: _scrollController,
          slivers: <Widget>[
            const CustomAppbar(),
            SliverToBoxAdapter(
              child: TodayWidget(formattedDate: todayDateForShow),
            ),
            SliverToBoxAdapter(
              child: Padding(
                padding:
                    const EdgeInsets.symmetric(vertical: 30, horizontal: 15),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    Text(
                      style: const TextStyle(fontSize: 14),
                      AppLocalizations.of(context)!.meetings,
                    ),
                    IconButtonCustom(
                      iconColor: value.hasActiveFilters()
                          ? Colors.white
                          : config.ui.secendGreen,
                      backColor: value.hasActiveFilters()
                          ? config.ui.secendGreen
                          : Colors.white,
                      icon: FontAwesomeIcons.sliders,
                      onTap: () {
                        showModalBottomSheet(
                          isScrollControlled: true,
                          useSafeArea: true,
                          context: context,
                          builder: (context) {
                            return DiologMeetingsFilters();
                          },
                        );
                      },
                    )
                  ],
                ),
              ),
            ),
            meetingsList(value),
            (value.paginationMeetings == Status.ready ||
                    value.paginationMeetings == Status.empty)
                ? const SliverToBoxAdapter()
                : const SliverToBoxAdapter(
                    child: Center(
                      child: LoadingWidget(
                        size: 10,
                      ),
                    ),
                  )
          ],
        );
      },
    );
  }

  Widget meetingsList(MeetingsState state) {
    switch (state.statusMeetings) {
      case Status.ready:
        return SliverList.builder(
          itemBuilder: (context, index) {
            final items = state.meetingsModel!.data![index];
            return Padding(
              padding: const EdgeInsets.all(8.0),
              child: CustomCardMeeting(
                  titel: items.subject!.subject ?? '',
                  fromTime: items.azHour ?? '',
                  toTime: items.taHour ?? "",
                  location: items.location!.address ?? '',
                  date: items.dateJalali ?? '',
                  cardId: items.id ?? 0,
                  onSelectedMoreButton: (value) async {
                    switch (value) {
                      case 'edit':
                        await context.pushNamed('meetingedit',
                            pathParameters: {'id': items.id.toString()});

                        meetingsState.getMeetings(refresh: true);

                      case 'confirm':
                        acceptMeeting(state, context, items.id ?? -1);
                      case 'cancel':
                        cancelMeeting(state, context, items.id ?? -1);
                      case 'report':
                        await context.pushNamed(
                          'meetinsammary',
                          extra: items, // `items` should be a Datum instance
                        );

                      default:
                    }
                  },
                  itemBuilderMoreButton: (context) => [
                        PopupMenuItem(
                          value: 'edit',
                          child: Row(
                            children: const [
                              Icon(
                                Icons.edit,
                                color: Colors.green,
                                size: 17,
                              ),
                              SizedBox(width: 8),
                              Text(
                                'ویرایش قرار',
                                style: TextStyle(fontSize: 12),
                              ),
                            ],
                          ),
                        ),
                        PopupMenuItem(
                          enabled: state.statusAcceptMeeting != Status.loading,
                          value: 'confirm',
                          child: Row(
                            children: const [
                              Icon(
                                Icons.check_circle,
                                color: Colors.green,
                                size: 17,
                              ),
                              SizedBox(width: 8),
                              Text(
                                'تایید جلسه',
                                style: TextStyle(fontSize: 12),
                              ),
                            ],
                          ),
                        ),
                        PopupMenuItem(
                          enabled: state.statusCancelMeeting != Status.loading,
                          value: 'cancel',
                          child: Row(
                            children: const [
                              Icon(
                                Icons.cancel,
                                color: Colors.green,
                                size: 17,
                              ),
                              SizedBox(width: 8),
                              Text(
                                'لغو قرار',
                                style: TextStyle(fontSize: 12),
                              ),
                            ],
                          ),
                        ),
                        PopupMenuItem(
                          value: 'report',
                          child: Row(
                            children: const [
                              Icon(
                                Icons.receipt_long,
                                color: Colors.green,
                                size: 17,
                              ),
                              SizedBox(width: 8),
                              Text(
                                'صورت جلسه',
                                style: TextStyle(fontSize: 12),
                              ),
                            ],
                          ),
                        ),
                      ]),
            );
          },
          itemCount: state.meetingsModel!.data!.length,
        );
      case Status.loading:
        return SliverFillRemaining(child: const LoadingWidget());
      case Status.error:
        return SliverFillRemaining(
          child: CustomErrorWidget(
            onPressed: () async {
              await state.getMeetings(refresh: true);
            },
          ),
        );
      case Status.empty:
        return SliverFillRemaining(child: EmptyStateWidget());
      default:
        return Container();
    }
  }

  void cancelMeeting(
      MeetingsState state, BuildContext context, int cardId) async {
    final status = await state.cancelMeeting(id: cardId);
    if (status == Status.ready) {
      Tools.showCustomSnackBar(
        text: 'جلسه لغو شد!',
        isError: false,
        context,
      );
    } else {
      Tools.showCustomSnackBar(
        text: 'مشکلی رخ داده است. دوباره تلاش کنید!',
        isError: true,
        context,
      );
    }
  }

  void acceptMeeting(
      MeetingsState state, BuildContext context, int cardId) async {
    final status = await state.acceptMeeting(id: cardId);
    if (status == Status.ready) {
      Tools.showCustomSnackBar(
        text: 'جلسه تایید شد!',
        isError: false,
        context,
      );
    } else {
      Tools.showCustomSnackBar(
        text: 'مشکلی رخ داده است. دوباره تلاش کنید!',
        isError: true,
        context,
      );
    }
  }
}