import 'package:flutter/material.dart' show TimeOfDay;
import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:shared_preferences/shared_preferences.dart';

part 'notification_settings_notifier.g.dart';

class NotificationSettings {
  final bool enabled;
  final TimeOfDay time;

  const NotificationSettings({required this.enabled, required this.time});
}

@Riverpod(keepAlive: true)
class NotificationSettingsNotifier extends _$NotificationSettingsNotifier {
  static const _enabledKey = 'notifications_enabled';
  static const _hourKey = 'notifications_hour';
  static const _minuteKey = 'notifications_minute';

  @override
  NotificationSettings build() {
    _load();
    return const NotificationSettings(
      enabled: false,
      time: TimeOfDay(hour: 7, minute: 0),
    );
  }

  Future<void> _load() async {
    final prefs = await SharedPreferences.getInstance();
    final enabled = prefs.getBool(_enabledKey) ?? false;
    final hour = prefs.getInt(_hourKey) ?? 7;
    final minute = prefs.getInt(_minuteKey) ?? 0;
    state = NotificationSettings(
      enabled: enabled,
      time: TimeOfDay(hour: hour, minute: minute),
    );
  }

  Future<void> setEnabled(bool enabled) async {
    state = NotificationSettings(enabled: enabled, time: state.time);
    final prefs = await SharedPreferences.getInstance();
    await prefs.setBool(_enabledKey, enabled);
  }

  Future<void> setTime(TimeOfDay time) async {
    state = NotificationSettings(enabled: state.enabled, time: time);
    final prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_hourKey, time.hour);
    await prefs.setInt(_minuteKey, time.minute);
  }
}