private void AddOrRemoveCartItems(ShoppingCart shoppingCart, SavedShoppingCartDto shoppingCartDto)
{
try
{
var addedCartItems =
shoppingCartDto.Carts
.Where(cd =>
shoppingCart.Carts.All(oi => oi.ProductId != cd.ProductId))
.ToList();
foreach (var cartItemDto in addedCartItems)
{
shoppingCart.AddItem(cartItemDto.ProductId, cartItemDto.Quantity);
}
var removedCartItems =
shoppingCart.Carts.Where(oi => shoppingCartDto.Carts.Any(oir => oir.ProductId != oi.ProductId))
.ToList();
foreach (var item in removedCartItems)
{
shoppingCart.RemoveItem(item);
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
}
public async Task <IServiceResult> CreateAsync(SavedShoppingCartDto shoppingCartDto)
{
try
{
var shoppingCart = _mapper.Map <SavedShoppingCartDto, ShoppingCart>(shoppingCartDto);
await _repository.AddAsync(shoppingCart);
if (shoppingCart.Carts.Count > 0)
{
foreach (var cartItem in shoppingCart.Carts)
{
shoppingCart.AddItem(cartItem.ProductId, cartItem.Quantity);
_logger.LogError($"Added product with id {cartItem.ProductId} to shopping cart with id {shoppingCart.Id}.");
}
}
if (!await _unitOfWork.CompleteAsync())
{
throw new SaveFailedException(nameof(shoppingCart));
}
_logger.LogInformation($"Added new {nameof(shoppingCart)} with id: {shoppingCart.Id}.");
var result = await GetSingleAsync(shoppingCart.Id.ToString());
return(new ServiceResult(payload: result.Payload));
}
catch (Exception e)
{
_logger.LogError($"Adding new shopping cart failed. {e.Message}");
return(new ServiceResult(false, e.Message));
}
}
public async Task <IServiceResult> UpdateAsync(string id, SavedShoppingCartDto shoppingCartDto)
{
try
{
var shoppingCartId = id.ToGuid();
var shoppingCart = await _repository.GetSingleAsync(shoppingCartId);
_mapper.Map(shoppingCartDto, shoppingCart);
AddOrRemoveCartItems(shoppingCart, shoppingCartDto);
if (!await _unitOfWork.CompleteAsync())
{
throw new SaveFailedException(nameof(shoppingCart));
}
_logger.LogInformation($"Updated {nameof(shoppingCart)} with id: {shoppingCart.Id}");
var result = await GetSingleAsync(shoppingCart.Id.ToString());
return(new ServiceResult(payload: result.Payload));
}
catch (Exception e)
{
_logger.LogError($"Updating shopping cart with id: {id} failed. {e.Message}");
return(new ServiceResult(false, e.Message));
}
}