public async Task HandleReceiptFor(GarageTicket ticket, string emailAddress, ReceiptFormat receiptFormat)
{
if (ticket.Payment is ParkingPermit permit)
{
// Simplistic approach: parking permit does not generate receipt
return;
}
var receiptContent = _contentBuilder.BuildContent(ticket);
switch (receiptFormat)
{
case ReceiptFormat.Email:
await _emailClient.EmailAsync(emailAddress, receiptContent);
break;
case ReceiptFormat.Print:
await _deviceClient.PrintAsync(receiptContent);
break;
}
}
public string BuildContent(GarageTicket ticket)
{
var receiptContent = $"Check in time: {ticket.CheckInTime}\n" +
$"Check out time: {ticket.CheckOutTime}\n" +
$"Total charge: ${ticket.AmountCharged}";
return(receiptContent);
}
public Task SaveAsync(GarageTicket ticket)
{
if (!_storage.Any(t => t.TicketId == ticket.TicketId))
{
_storage.Add(new GarageTicket
{
TicketId = ticket.TicketId,
CheckInTime = ticket.CheckInTime,
Payment = ticket.Payment
});
}
return(Task.FromResult(0));
}
protected abstract Task <bool> CheckOutAsync(T payment, GarageTicket ticket);
public async Task <bool> CheckOutAsync(GarageTicket ticket) => await CheckOutAsync((T)ticket.Payment, ticket);