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

import '../utils/shared_preferences_provider.dart';

part 'theme_mode_provider.g.dart';

const _themeModeKey = 'theme_mode';

@Riverpod(keepAlive: true)
class ThemeModeController extends _$ThemeModeController {
  @override
  ThemeMode build() {
    final stored = ref.watch(sharedPreferencesProvider).getString(_themeModeKey);
    return switch (stored) {
      'light' => ThemeMode.light,
      'dark' => ThemeMode.dark,
      _ => ThemeMode.system,
    };
  }

  Future<void> setThemeMode(ThemeMode mode) async {
    state = mode;
    await ref.read(sharedPreferencesProvider).setString(_themeModeKey, mode.name);
  }
}