app-starlock/lib/translations/translation_loader.dart

part of lib_trans;

class TranslationLoader {

  static bool get isZh => Get.locale?.languageCode.toLowerCase() == 'zh';
  static bool get isEn => Get.locale?.languageCode.toLowerCase() == 'en';

  static Map<String,String>
      _zhMap = <String, String>{},
      _enMap = <String, String>{},
      _keyMap = <String, String>{};

  static Map<String,String> get zhDic => _zhMap;
  static Map<String,String> get enDic => _enMap;

  static LanKeyEntity? _lanKeyEntity;
  static LanKeyEntity? get lanKeys => _lanKeyEntity;

  static Future<void> loadTranslation({
    String? zhSource,
    String? enSource,
    String? keySource,}) async {
    _zhMap = await _loadJsonFile(zhSource!);
    _enMap = await _loadJsonFile(enSource!);
    _keyMap = await _loadJsonFile(keySource!);
    _lanKeyEntity = LanKeyEntity.fromJson(_keyMap);
  }

  static Future<Map<String,String>> _loadJsonFile(String filePath) async => rootBundle.loadString(filePath).then((String jsonString){
    final Map<String,dynamic> enJson = jsonDecode(jsonString);
    final Map<String,String> map = <String, String>{};
    enJson.forEach((String key,dynamic value) {
      map[key] = value.toString();
    });
    return map;
  }).onError((Object? error, StackTrace stackTrace){
    return Future<Map<String,String>>.value(<String, String>{});
  });

}