/// <summary>
/// Registers a new user
/// </summary>
/// <param name="argNewUser">The new user's credentials</param>
/// <returns>The registration result</returns>
public async Task <RegistrationResult> RegisterAsync(RegisterUserDTO argNewUser)
{
try
{
Error errors = new Error
{
ModelState = new Dictionary <string, List <string> >()
};
RegistrationResult result = new RegistrationResult
{
Messages = new ObservableCollection <string>()
};
if (argNewUser.Username != string.Empty)
{
// checks if the given username already exists
// if it does, the registration was not successful, and add an error message
bool isUsernameExists = await this.IsUsernameExistsAsync(argNewUser.Username);
if (isUsernameExists)
{
errors.ModelState.Add("UsernameExists", new List <string>()
{
"This username already exists!"
});
}
}
// checks if the password has a valid format
if (!PasswordHelpers.IsPasswordValid(argNewUser.Password))
{
errors.ModelState.Add("InvalidPasswordFormat", new List <string>()
{
"Password is invalid!",
"The password cannot contain any whitespaces!",
"The password must contain at least one uppercase character!",
"The password must contain at least one non-alphanumeric character!",
"The password must contain at least one digit!",
"The password must contain at least a '-' or a '_' character!"
});
}
// gets the response of the registration process
HttpResponseMessage response =
await _carService.Client
.PostAsJsonAsync <RegisterUserDTO>(_carService.Client.BaseAddress + "users", argNewUser);
// if it was successful, and the username does not exist in the database already,
// then the registration was successful
if (response.IsSuccessStatusCode && errors.ModelState.Count == 0)
{
result.RegistrationWasSuccessful = true;
result.Messages.Add("Registration was successful! You can sign in now!");
}
else
{
// else it wasn't
result.RegistrationWasSuccessful = false;
// if the request wasn't successful
if (!response.IsSuccessStatusCode)
{
// add the response errors to the errors object
Dictionary <string, List <string> > responseErrors =
await response.Content.ReadAsAsync <Dictionary <string, List <string> > >();
foreach (KeyValuePair <string, List <string> > error in responseErrors)
{
errors.ModelState.Add(error.Key, error.Value);
}
}
// get the error messages
foreach (List <string> errorList in errors.ModelState.Values)
{
foreach (string error in errorList)
{
result.Messages.Add(error);
}
}
}
return(result);
}
catch (Exception ex)
{
throw ex;
}
}