/// <summary>
/// Responsible for business lógic of token validation
/// </summary>
/// <param name="registrationDate"></param>
/// <param name="token"></param>
/// <param name="cvv"></param>
/// <returns>boolean wich indicate if token is valid or not</returns>
public async Task <bool> ValidateToken(DateTime registrationDate, long token, int cvv)
{
//pre validations
validateCvv(cvv);
validateRegistrationDate(registrationDate);
if (token <= default(int) || token.ToString().Length == default(int))
{
return(false);
}
//if registration date toke toked more than 15 minutes
if (registrationDate < DateTime.UtcNow.AddMinutes(-15))
{
return(false);
}
var dbCard = await _repository.Find(registrationDate);
//haven't found Card so is an invalid token
if (dbCard == null)
{
return(false);
}
//Create a new token
var dbCardToken = await CreateToken(dbCard.CardNumber, cvv, registrationDate, true);
//check if created token is the same of provided one and return
return(token == dbCardToken);
}
