public static decimal ApplyDiscount(decimal price, AccountStatus accountStatus, int timeOfHavingAccountInYears)
{
decimal priceAfterDiscount = 0;
switch (accountStatus)
{
case AccountStatus.NotRegistered:
priceAfterDiscount = price;
break;
case AccountStatus.SimpleCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants2.DISCOUNT_FOR_SIMPLE_CUSTOMERS);
break;
case AccountStatus.ValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants2.DISCOUNT_FOR_VALUABLE_CUSTOMERS);
break;
case AccountStatus.MostValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants2.DISCOUNT_FOR_MOST_VALUABLE_CUSTOMERS);
break;
default:
throw new NotImplementedException();
}
priceAfterDiscount = priceAfterDiscount.ApplyDiscountForTimeOfHavingAccount(timeOfHavingAccountInYears);
return(priceAfterDiscount);
}
public decimal ApplyDiscount(decimal price, AccountStatus accountStatus, int timeofHavingInYears)
{
decimal priceAfterDiscount = 0;
decimal discountForYearsInPercentage = (timeofHavingInYears > Constants.MAXIMUM_DISCOUNT_VALUE) ? (decimal)Constants.MAXIMUM_DISCOUNT_VALUE / 100 : (decimal)timeofHavingInYears / 100;
switch (accountStatus)
{
case AccountStatus.NotRegistered:
priceAfterDiscount = price;
break;
case AccountStatus.SimpleCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants.DISCOUNT_SIMPLE_CUSTOMER);
break;
case AccountStatus.MostValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants.DISCOUNT_MOST_VALUABLE_CUSTOMER);
break;
case AccountStatus.ValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants.DISCOUNT_VALUABLE_CUSTOMER);
break;
default:
throw new NotImplementedException();
}
priceAfterDiscount.ApplyDiscountForTimeOfHavingAccount(timeofHavingInYears);
return(priceAfterDiscount);
}
/// <summary>
/// que hicimos:
/// creamos metodos de extension, para decimales (para usarlos para el parametro price en este caso)
/// de esa forma podemos tener metodos como ApplyDiscountForAccountStatus que sean aplicables a price
/// y asi organizar la forma en que los descuentos se aplican y aislar a esta clase de la responsabilidad de saber
/// cómo se calculan los descuentos
/// </summary>
public decimal Calculate(decimal price, AccountStatus accountStatus, int timeOfHavingAccountInYears)
{
decimal priceAfterDiscount = 0;
switch (accountStatus)
{
case AccountStatus.NotRegistered:
priceAfterDiscount = price;
break;
case AccountStatus.SimpleCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants.DISCOUNT_FOR_SIMPLE_CUSTOMERS)
.ApplyDiscountForTimeOfHavingAccount(timeOfHavingAccountInYears);
break;
case AccountStatus.ValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants.DISCOUNT_FOR_VALUABLE_CUSTOMERS)
.ApplyDiscountForTimeOfHavingAccount(timeOfHavingAccountInYears);
break;
case AccountStatus.MostValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(Constants.DISCOUNT_FOR_MOST_VALUABLE_CUSTOMERS)
.ApplyDiscountForTimeOfHavingAccount(timeOfHavingAccountInYears);
break;
default:
throw new InvalidOperationException($"El parametro accountStatus no tiene un valor válido, valor actual: {accountStatus}");
}
return(priceAfterDiscount);
}
public decimal ApplyDiscount(decimal price, AccountStatus accountStatus, int timeOfHavingAccountInYears)
{
decimal priceAfterDiscount;
switch (accountStatus)
{
case AccountStatus.NotRegistered:
priceAfterDiscount = price;
break;
case AccountStatus.SimpleCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(constants.DiscountForSimpleCustomers);
break;
case AccountStatus.ValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(constants.DiscountForValuableCustomers);
break;
case AccountStatus.MostValuableCustomer:
priceAfterDiscount = price.ApplyDiscountForAccountStatus(constants.DiscountForMostValuableCustomers);
break;
default:
throw new NotImplementedException();
}
if (accountStatus != AccountStatus.NotRegistered)
{
priceAfterDiscount = priceAfterDiscount.ApplyDiscountForTimeOfHavingAccount(timeOfHavingAccountInYears);
}
return(priceAfterDiscount);
}