import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:jiffy/jiffy.dart';
import 'package:syncfusion_flutter_calendar/calendar.dart';

import '../../../../api/webuntis/queries/getRooms/getRoomsResponse.dart';
import '../../../../api/webuntis/queries/getSubjects/getSubjectsResponse.dart';
import '../../../../api/webuntis/queries/getTimetable/getTimetableResponse.dart';
import '../../../../routing/app_routes.dart';
import '../../../../state/app/modules/timetable/bloc/timetable_bloc.dart';
import '../../../../state/app/modules/timetable/bloc/timetable_state.dart';
import '../../../../widget/debug/debug_tile.dart';
import '../../../../widget/unimplemented_dialog.dart';
import '_bottom_sheet.dart';

class WebuntisLessonSheet {
  static void show(BuildContext context, TimetableBloc bloc, Appointment appointment, GetTimetableResponseObject lesson) {
    final state = bloc.state.data;
    if (state == null) return;

    final subject = _resolveSubject(state, lesson);
    final room = _resolveRoom(state, lesson);

    showAppointmentBottomSheet(
      context,
      header: (_) => Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Text(
              '${_codePrefix(lesson.code)}${subject.alternateName}',
              textAlign: TextAlign.center,
              style: const TextStyle(fontSize: 25),
              overflow: TextOverflow.ellipsis,
            ),
            Text(subject.longName),
            Text(
              '${Jiffy.parseFromDateTime(appointment.startTime).format(pattern: 'HH:mm')} - '
              '${Jiffy.parseFromDateTime(appointment.endTime).format(pattern: 'HH:mm')}',
              style: const TextStyle(fontSize: 15),
            ),
          ],
        ),
      ),
      body: (_) => SliverChildListDelegate([
        const Divider(),
        ListTile(
          leading: const Icon(Icons.notifications_active),
          title: Text('Status: ${lesson.code != null ? "Geändert" : "Regulär"}'),
        ),
        ListTile(
          leading: const Icon(Icons.room),
          title: Text('Raum: ${room.name} (${room.longName})'),
          trailing: IconButton(
            icon: const Icon(Icons.house_outlined),
            onPressed: () => AppRoutes.openRoomplan(context),
          ),
        ),
        ListTile(
          leading: const Icon(Icons.person),
          title: lesson.te.isNotEmpty
              ? Text(
                  'Lehrkraft: ${lesson.te[0].name}'
                  '${lesson.te[0].longname.isNotEmpty ? " (${lesson.te[0].longname})" : ""}',
                )
              : const Text('?'),
          trailing: Visibility(
            visible: !kReleaseMode,
            child: IconButton(
              icon: const Icon(Icons.textsms_outlined),
              onPressed: () => UnimplementedDialog.show(context),
            ),
          ),
        ),
        ListTile(
          leading: const Icon(Icons.abc),
          title: Text('Typ: ${lesson.activityType}'),
        ),
        ListTile(
          leading: const Icon(Icons.people),
          title: Text('Klasse(n): ${lesson.kl.map((e) => e.name).join(", ")}'),
        ),
        DebugTile(context).jsonData(lesson.toJson()),
      ]),
    );
  }

  static String _codePrefix(String? code) {
    if (code == 'cancelled') return 'Entfällt: ';
    if (code == 'irregular') return 'Änderung: ';
    return code ?? '';
  }

  static GetSubjectsResponseObject _resolveSubject(TimetableState state, GetTimetableResponseObject lesson) {
    try {
      return state.subjects!.result.firstWhere((s) => s.id == lesson.su[0].id);
    } catch (_) {
      return GetSubjectsResponseObject(0, '?', 'Unbekannt', '?', true);
    }
  }

  static GetRoomsResponseObject _resolveRoom(TimetableState state, GetTimetableResponseObject lesson) {
    try {
      return state.rooms!.result.firstWhere((r) => r.id == lesson.ro[0].id);
    } catch (_) {
      return GetRoomsResponseObject(0, '?', 'Unbekannt', true, '?');
    }
  }
}