public async Task DeleteCartItem(DeleteProductFromCartDto item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
var cart = await GetCartById(item.CartId);
if (cart == null)
{
throw new EntityNotFoundException($"Cart with id:{item.CartId} doesn't exist");
}
var cartItem = cart.CartItems.FirstOrDefault(c => c.ProductId == item.ProductId);
if (cartItem == null)
{
throw new EntityNotFoundException($"Cart item with product id:{item.ProductId} doesn't exist");
}
cartItem.Quantity--;
if (cartItem.Quantity == 0)
{
_context.CartItems.Remove(cartItem);
}
else
{
_context.CartItems.Update(cartItem);
}
await _context.SaveChangesAsync();
}
public async Task <IActionResult> Delete(DeleteProductFromCartDto productCartDto)
{
try
{
await _cartCrudService.DeleteCartItem(productCartDto);
return(Ok());
}
catch (ArgumentNullException e)
{
return(BadRequest(e.Message));
}
catch (EntityNotFoundException e)
{
return(BadRequest(e.Message));
}
}
