public static Customer CreateCustomer(string email, string name,
ICustomerUniquenessChecker customerUniquenessChecker)
{
if (!customerUniquenessChecker.IsUserUnique(email))
{
throw new BusinessRuleException("This e-mail is already in use.");
}
return(new Customer(email, name));
}
public static async Task <Customer> CreateNew(string email, string name,
ICustomerUniquenessChecker customerUniquenessChecker)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException("Customer name cannot be null or whitespace.", nameof(name));
}
if (!await customerUniquenessChecker.IsUserUnique(email))
{
throw new BusinessRuleException("This e-mail is already in use.");
}
var customerId = new CustomerId(Guid.NewGuid());
return(new Customer(customerId, email, name));
}