Sonnat/lib/core/language/translator.dart

import 'dart:convert';

import 'package:data/app_setting_data/repository/app_setting_box_repository_impl.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart' show rootBundle;
import 'package:local_db_core/lib/boxes/box_list/setting_box/app_setting_box.dart';
import 'package:repositories/app_setting_box_domain/repository/app_setting_box_repository.dart';
import 'package:sonnat/core/language/languages.dart';

final List<String> supportedLanguages = [
  'en',
  'fa',
  'ar',
];

class Translator {
  static Map<dynamic, dynamic>? _localizedValues;

  static Iterable<Locale> supportedLocales() => supportedLanguages.map<Locale>((lang) => Locale(lang, ''));

  static String translate(String key) {
    if (_localizedValues == null || _localizedValues![key] == null) {
      return '$key not found';
    }
    return _localizedValues![key];
  }

  static Future<void> setNewLanguage(Languages newLanguage) async {
    AppSettingBoxRepository repository = AppSettingBoxRepositoryImpl(appSettingBox: AppSettingBox());
    Locale locale = Locale(newLanguage.value, '');
    String jsonContent = await rootBundle.loadString('assets/languages/${locale.languageCode}.json');
    _localizedValues = json.decode(jsonContent);
    await repository.setCurrentLanguage(locale.languageCode);
    return;
  }

  Translator._internal();
}