private async Task PurchaseOrder()
{
WriteSection("Purchase");
while (true)
{
try
{
var product = _command.GetProduct();
await _mediator.Send(new SelectProduct(product));
while (true)
{
try
{
var coins = _command.GetCoins();
await _mediator.Send(new InsertCoins(coins));
break;
}
catch (NotSufficientAmountException ex)
{
_terminal.WriteLine($"{ex.Message}");
_terminal.WriteLine($"Remaining Amount: {ex.RemainingAmount}");
if (!_prompt.ReadBool(_insertRemainingAmountMessage, true))
{
await CancelOrder();
return;
}
}
catch (VendingMachineValiationException ex)
{
_terminal.WriteLine($"{ex.Message}");
}
}
if (!_prompt.ReadBool(_confirmPurchaseMessage, true))
{
await CancelOrder();
break;
}
await _mediator.Send(new ProcessOrder(false));
break;
}
catch (NotSufficientChangeException ex)
{
_terminal.WriteLine(ex.Message);
if (_prompt.ReadBool(_confirmPurchaseMessage, false))
{
await CancelOrder();
break;
}
await _mediator.Send(new ProcessOrder(true));
break;
}
catch (ProductNotAvailableException ex)
{
_terminal.WriteLine(ex.Message);
}
catch (VendingMachineValiationException ex)
{
_terminal.WriteLine($"{ex.Message}");
}
catch (Exception ex)
{
_terminal.WriteError(ex.Message);
}
}
}