public static ICommand Build <TCommand>(MpConfig config, params object[] dependencies)
where TCommand : ICommand
{
var requestedCommandType = typeof(TCommand).FullName;
if (!string.Equals(requestedCommandType, typeof(FeeCalculationCommand).FullName, StringComparison.Ordinal))
{
throw new NotSupportedException(requestedCommandType);
}
return(BuildFeeCalculationCommand(config, dependencies));
}
private static FeeCalculationCommand BuildFeeCalculationCommand(MpConfig config, params object[] dependencies)
{
var defaultFee = new PercentageFee(
config.Fees.PercentageFee,
config.Fees.MinAllowedFeeAmount);
var feeDiscount = new DiscountedFee(
config.Fees.DiscountedFees,
config.Fees.MinAllowedFeeAmount);
var fixedFee = new InvoiceFixedFee(
config.Fees.InvoiceFixedFee,
config.Fees.MinAllowedFeeAmount);
var extraFees = new IExtraFee[] { feeDiscount, fixedFee };
ITransactionRepository transactionRepository =
dependencies
.OfType <ITransactionRepository>()
.FirstOrDefault() ??
new TransactionRepository(
config.Input.TransactionsFilePath,
new FileReader(),
new TransactionParser(
config.Input.Separator,
config.Input.DateFormat));
IFeeCalculationService feeCalculationService =
dependencies
.OfType <IFeeCalculationService>()
.FirstOrDefault() ??
new FeeCalculationService(
new BaseFeeCalculator(defaultFee, new Dictionary <string, ITransactionFee>()),
extraFees,
new Mapper());
IOutputWriter outputWriter =
dependencies
.OfType <IOutputWriter>()
.FirstOrDefault() ??
new OutputWriter(
config.Output.DateFormat,
config.Output.AmountFormat,
config.Output.MerchantNameMinimalWidth);
var command = new FeeCalculationCommand(
transactionRepository,
feeCalculationService,
outputWriter);
return(command);
}
