public async Task <List <string> > GetOrderValidationErrors()
{
AppUser user = await GetCurrentUser();
List <string> errors = new List <string>();
if (!user.AssertQuantityOfCart())
{
errors.Add("Items you have added to your cart exceed the quantity that is available.");
}
if (!user.AssertBalanceExceedsCost())
{
errors.Add("Your available balance is insufficient to make the current purchase.");
}
return(errors);
}
