public async Task <ActionResult> Put([FromBody] ChangeInvoice request)
{
try
{
await _useCases.Invoke(request);
return(Ok());
}
catch (InvoiceNotFoundException ex)
{
_logger.LogError(ex, "Invalid not found");
return(NotFound(new { message = ex.Message }));
}
catch (InvalidInvoiceException ex)
{
_logger.LogError(ex, "Invalid invoice");
return(BadRequest(new { message = ex.Message, errors = ex.Errors.Select(error => new { message = error }) }));
}
catch (InvalidInvoiceOperationException ex)
{
_logger.LogError(ex, "Invalid operation");
return(BadRequest(new { message = ex.Message }));
}
catch (Exception ex)
{
_logger.LogError(ex, "Error changing invoice");
while (ex.InnerException != null)
{
ex = ex.InnerException;
}
return(StatusCode(500, new { message = ex.Message, details = ex.StackTrace }));
}
}
public async Task Invoke(ChangeInvoice request)
{
var invoice = request.Invoice;
var existing = await _repository.GetByNumber(invoice?.Number ?? 0);
if (existing == null)
{
throw new InvoiceNotFoundException(invoice.Number);
}
if (existing.Status != Status.Created)
{
throw new InvalidInvoiceOperationException(invoice.Number, "Change");
}
existing.Date = invoice.Date;
existing.Customer = invoice.Customer;
existing.Amount = invoice.Amount;
if (invoice.Items != null)
{
foreach (var existingItem in existing.Items)
{
var item = invoice.Items.FirstOrDefault(x => x.Number == existingItem.Number);
if (item != null)
{
existingItem.Description = item.Description;
existingItem.Quantity = item.Quantity;
existingItem.UnitPrice = item.UnitPrice;
existingItem.Amount = item.Amount;
}
}
}
var errors = new List <string>();
if (invoice.Date > DateTime.Today)
{
errors.Add("Invoice date must not be a future date");
}
if (invoice.Number <= 0)
{
errors.Add("Invoice number must be greater than 0");
}
if (invoice.Amount < 0)
{
errors.Add("Invoice amount must be greater than or equal to 0");
}
else if (invoice.Amount != (invoice.Items ?? Enumerable.Empty <Item>()).Sum(x => x.Amount))
{
errors.Add("Invoice amount must be equal to the sum of items amount");
}
if (string.IsNullOrWhiteSpace(invoice.Customer))
{
errors.Add("Invoice customer must not be null or empty");
}
if (invoice.Items == null || invoice.Items.Count == 0)
{
errors.Add("Invoice status must have at least one item");
}
if (invoice.Items != null)
{
int a = 1;
foreach (var x in invoice.Items.OrderBy(x => x.Number))
{
if (x.Number != a)
{
errors.Add($"Invoice item with number {a} not found");
break;
}
a++;
}
for (int index = 0; index < invoice.Items.Count; index++)
{
var item = invoice.Items[index];
if (item.Number <= 0)
{
errors.Add($"Item number at position {index} must be greater than 0");
}
if (string.IsNullOrWhiteSpace(item.Description))
{
errors.Add($"Item description at position {index} must not be null or empty");
}
if (item.Quantity < 0)
{
errors.Add($"Item quantity at position {index} must be greater than or equal to 0");
}
if (item.UnitPrice < 0)
{
errors.Add($"Item unit price at position {index} must be greater than or equal to 0");
}
if (item.Amount < 0)
{
errors.Add($"Item amount at position {index} must be greater than or equal to 0");
}
else if (item.Amount != item.Quantity * item.UnitPrice)
{
errors.Add($"Item amount at position {index} must be equal to quantity x unit price");
}
}
}
if (errors.Count > 0)
{
throw new InvalidInvoiceException(errors);
}
await _repository.Update(existing);
}