import 'dart:io';

import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/views/widgets/max_width_body.dart';
import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:fluffychat/config/app_config.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:open_noti_settings/open_noti_settings.dart';
import '../utils/localized_exception_extension.dart';

import '../views/widgets/matrix.dart';

class NotificationSettingsItem {
  final PushRuleKind type;
  final String key;
  final String Function(BuildContext) title;
  NotificationSettingsItem(this.type, this.key, this.title);
}

class SettingsNotifications extends StatelessWidget {
  static List<NotificationSettingsItem> items = [
    NotificationSettingsItem(
      PushRuleKind.underride,
      '.m.rule.room_one_to_one',
      (c) => L10n.of(c).directChats,
    ),
    NotificationSettingsItem(
      PushRuleKind.override,
      '.m.rule.contains_display_name',
      (c) => L10n.of(c).containsDisplayName,
    ),
    NotificationSettingsItem(
      PushRuleKind.content,
      '.m.rule.contains_user_name',
      (c) => L10n.of(c).containsUserName,
    ),
    NotificationSettingsItem(
      PushRuleKind.override,
      '.m.rule.invite_for_me',
      (c) => L10n.of(c).inviteForMe,
    ),
    NotificationSettingsItem(
      PushRuleKind.override,
      '.m.rule.member_event',
      (c) => L10n.of(c).memberChanges,
    ),
    NotificationSettingsItem(
      PushRuleKind.override,
      '.m.rule.suppress_notices',
      (c) => L10n.of(c).botMessages,
    ),
  ];
  void _openAndroidNotificationSettingsAction() async {
    await NotificationSetting.configureChannel(
      NotificationDetails(
        android: AndroidNotificationDetails(
          AppConfig.pushNotificationsChannelId,
          AppConfig.pushNotificationsChannelName,
          AppConfig.pushNotificationsChannelDescription,
        ),
      ),
    );
    return NotificationSetting.open();
  }

  bool _getNotificationSetting(
      BuildContext context, NotificationSettingsItem item) {
    final pushRules = Matrix.of(context).client.globalPushRules;
    switch (item.type) {
      case PushRuleKind.content:
        return pushRules.content
            ?.singleWhere((r) => r.ruleId == item.key, orElse: () => null)
            ?.enabled;
      case PushRuleKind.override:
        return pushRules.override
            ?.singleWhere((r) => r.ruleId == item.key, orElse: () => null)
            ?.enabled;
      case PushRuleKind.room:
        return pushRules.room
            ?.singleWhere((r) => r.ruleId == item.key, orElse: () => null)
            ?.enabled;
      case PushRuleKind.sender:
        return pushRules.sender
            ?.singleWhere((r) => r.ruleId == item.key, orElse: () => null)
            ?.enabled;
      case PushRuleKind.underride:
        return pushRules.underride
            ?.singleWhere((r) => r.ruleId == item.key, orElse: () => null)
            ?.enabled;
    }
    return false;
  }

  void _setNotificationSetting(
      BuildContext context, NotificationSettingsItem item, bool enabled) {
    showFutureLoadingDialog(
      context: context,
      future: () => Matrix.of(context).client.enablePushRule(
            'global',
            item.type,
            item.key,
            enabled,
          ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        leading: BackButton(),
        title: Text(L10n.of(context).notifications),
      ),
      body: MaxWidthBody(
        withScrolling: true,
        child: StreamBuilder(
            stream: Matrix.of(context)
                .client
                .onAccountData
                .stream
                .where((event) => event.type == 'm.push_rules'),
            builder: (BuildContext context, _) {
              return Column(
                children: [
                  SwitchListTile(
                    value: !Matrix.of(context).client.allPushNotificationsMuted,
                    title: Text(
                        L10n.of(context).notificationsEnabledForThisAccount),
                    onChanged: (_) => showFutureLoadingDialog(
                      context: context,
                      future: () =>
                          Matrix.of(context).client.setMuteAllPushNotifications(
                                !Matrix.of(context)
                                    .client
                                    .allPushNotificationsMuted,
                              ),
                    ),
                  ),
                  if (!Matrix.of(context).client.allPushNotificationsMuted) ...{
                    if (!kIsWeb && Platform.isAndroid)
                      ListTile(
                        title: Text(L10n.of(context).soundVibrationLedColor),
                        trailing: CircleAvatar(
                          backgroundColor:
                              Theme.of(context).scaffoldBackgroundColor,
                          foregroundColor: Colors.grey,
                          child: Icon(Icons.edit_outlined),
                        ),
                        onTap: () => _openAndroidNotificationSettingsAction(),
                      ),
                    Divider(thickness: 1),
                    ListTile(
                      title: Text(
                        L10n.of(context).pushRules,
                        style: TextStyle(
                          color: Theme.of(context).accentColor,
                          fontWeight: FontWeight.bold,
                        ),
                      ),
                    ),
                    for (var item in items)
                      SwitchListTile(
                        value: _getNotificationSetting(context, item) ?? true,
                        title: Text(item.title(context)),
                        onChanged: (bool enabled) =>
                            _setNotificationSetting(context, item, enabled),
                      ),
                  },
                  Divider(thickness: 1),
                  ListTile(
                    title: Text(
                      L10n.of(context).devices,
                      style: TextStyle(
                        color: Theme.of(context).accentColor,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                  ),
                  FutureBuilder<List<Pusher>>(
                    future: Matrix.of(context).client.requestPushers(),
                    builder: (context, snapshot) {
                      if (snapshot.hasError) {
                        Center(
                          child: Text(
                            snapshot.error.toLocalizedString(context),
                          ),
                        );
                      }
                      if (snapshot.connectionState != ConnectionState.done) {
                        Center(child: CircularProgressIndicator());
                      }
                      final pushers = snapshot.data ?? [];
                      return ListView.builder(
                        physics: NeverScrollableScrollPhysics(),
                        shrinkWrap: true,
                        itemCount: pushers.length,
                        itemBuilder: (_, i) => ListTile(
                          title: Text(
                              '${pushers[i].appDisplayName} - ${pushers[i].appId}'),
                          subtitle: Text(pushers[i].data.url.toString()),
                        ),
                      );
                    },
                  ),
                ],
              );
            }),
      ),
    );
  }
}