import 'package:flutter/material.dart';
import 'package:get_it_mixin/get_it_mixin.dart';

import 'package:go_router/go_router.dart';
import 'package:badges/badges.dart' as badges;
import 'package:hive_flutter/hive_flutter.dart';
import 'package:together_mobile/database/box_type.dart';
import 'package:together_mobile/database/hive_database.dart';
import 'package:together_mobile/models/apply_list_model.dart';
import 'package:together_mobile/models/init_get_it.dart';
import 'package:together_mobile/models/user_model.dart';
import 'package:together_mobile/utils/app_dir.dart';

class HomeScreenWithNavBar extends StatefulWidget
    with GetItStatefulWidgetMixin {
  HomeScreenWithNavBar({
    super.key,
    required this.initIndex,
    required this.child,
    this.listController,
  });

  final int initIndex;
  final Widget child;
  // used to get back to top
  final ScrollController? listController;

  @override
  State<HomeScreenWithNavBar> createState() => _HomeScreenWithNavBarState();
}

class _HomeScreenWithNavBarState extends State<HomeScreenWithNavBar>
    with GetItStateMixin {
  Future<bool> _openBox() async {
    if (!getIt.get<UserProfile>().isInitialised) {
      List<int> encryptionKeyUint8List = await getEncryptKey();

      await Hive.initFlutter(await getBoxDir());

      Box<ChatSetting> chatSettingBox =
          await Hive.openBox<ChatSetting>('chat_setting');

      final openedChats =
          chatSettingBox.values.where((element) => element.isOpen);

      for (var chatBox in openedChats) {
        await Hive.openBox<MessageT>(
          'message_${chatBox.contactId}',
          encryptionCipher: HiveAesCipher(encryptionKeyUint8List),
          compactionStrategy: (entries, deletedEntries) => entries > 200,
        );
      }
    }
    return Future(() => true);
  }

  @override
  Widget build(BuildContext context) {
    int applyCount = watchOnly((ApplyList applyList) => applyList.count);

    return Scaffold(
      body: widget.child,
      bottomNavigationBar: BottomNavigationBar(
        backgroundColor:
            Theme.of(context).bottomNavigationBarTheme.backgroundColor,
        items: [
          BottomNavigationBarItem(
            icon: FutureBuilder(
              future: _openBox(),
              builder: (context, snapshot) {
                if (snapshot.hasData) {
                  return ValueListenableBuilder(
                    valueListenable:
                        Hive.box<ChatSetting>('chat_setting').listenable(),
                    builder: (context, chatSettingBox, _) {
                      final values = chatSettingBox.values;
                      int unreadCount = 0;
                      for (var value in values) {
                        unreadCount += value.unreadCount;
                      }
                      return badges.Badge(
                        badgeContent: Text(
                          unreadCount > 99 ? '$unreadCount+' : '$unreadCount',
                          style: TextStyle(
                            fontSize: 11,
                            color: Theme.of(context).colorScheme.inversePrimary,
                          ),
                        ),
                        showBadge: unreadCount > 0,
                        child: const Icon(Icons.message),
                      );
                    },
                  );
                } else {
                  return const Icon(Icons.message);
                }
              },
            ),
            label: '消息',
          ),
          BottomNavigationBarItem(
            icon: badges.Badge(
              badgeContent: Text(
                applyCount > 99 ? '$applyCount+' : '$applyCount',
                style: TextStyle(
                  fontSize: 11,
                  color: Theme.of(context).colorScheme.inversePrimary,
                ),
              ),
              showBadge: applyCount > 0,
              child: const Icon(Icons.contacts),
            ),
            label: '通讯录',
          ),
          const BottomNavigationBarItem(
            icon: Icon(Icons.star),
            label: '更多',
          ),
        ],
        onTap: (int index) => _onItemTapped(index, context),
        currentIndex: widget.initIndex,
      ),
    );
  }

  void _onItemTapped(int index, BuildContext context) {
    // setState(() {
    //   _selectedIndex = index;
    // });

    switch (index) {
      case 0:
        GoRouter.of(context).go('/chat');
        break;

      case 1:
        GoRouter.of(context).go('/contact');
        break;

      case 2:
        GoRouter.of(context).go('/more');
        break;
    }
  }
}