loadSecureStorage method

Implementation

bool loadSecureStorage(){
  logger("$secStorageInitDebugHeader - SecureStorage was set");
  if (_secureStorageKey == null || _secureStorageIV == null){
    // TODO - Add better error handling
    throw Exception("Secure storage was marked as set but no marks of it on the host system");
  }
  else{
    _encryptedSecureStorageKey = Key.fromUtf8(_secureStorageKey!);
    _encrypter = Encrypter(AES(_encryptedSecureStorageKey!));
    File storageFile = File(SECURE_STORAGE_PATH);
    if (!storageFile.existsSync()){
      logger("$secStorageInitDebugHeader -  key file does not exist, creating it");
      storageFile.createSync();
      _data = {};
      return true;
    }
    else{
      storageFile.openRead();
      Uint8List encryptedContent = storageFile.readAsBytesSync();
      if (encryptedContent.isEmpty){
        _secureStorageReadStatus  = true;
        return true;
      }
      String data = utf8.decode(_encrypter!.decryptBytes(Encrypted(encryptedContent), iv: _secureStorageIV!));
      Map<String,dynamic> res = jsonDecode(data);
      _secureStorageReadStatus  = true;
      _data = res.cast();
      logger("$secStorageInitDebugHeader - Data resssemble to this ${_data}");
      return true;
    }
  }
}