public async Task <bool> Handle(RemoveCartItemCommand request, CancellationToken cancellationToken)
{
try
{
var lineItems = _context.LineItems.Where(l => l.OrderID == request.OrderID && l.ItemID == request.ItemID);
_context.LineItems.RemoveRange(lineItems);
await _context.SaveChangesAsync(cancellationToken);
return(true);
}
catch (Exception e)
{
return(false);
}
}
public async Task <CustomerModel> Handle(CreateCustomerCommand request, CancellationToken cancellationToken)
{
var entity = new Customer
{
Active = true,
CreatedAt = DateTime.Now,
FirstName = request.FirstName,
MiddleName = request.MiddleName,
LastName = request.LastName,
Email = request.Email,
Password = request.Password,
Phone = request.Phone
};
_context.Customers.Add(entity);
await _context.SaveChangesAsync(cancellationToken);
return(_mapper.Map <CustomerModel>(entity));
}
public async Task <UserModel> Handle(CreateUserCommand request, CancellationToken cancellationToken)
{
var entity = new User
{
Username = request.User.Username,
Email = request.User.Email,
Password = request.User.Password,
FirstName = request.User.FirstName,
MiddleName = request.User.MiddleName,
LastName = request.User.LastName,
Active = true,
CreatedAt = DateTime.Now,
};
_context.Users.Add(entity);
await _context.SaveChangesAsync(cancellationToken);
return(_mapper.Map <UserModel>(entity));
}
public async Task <CreateCartItemModel> Handle(CreateCartItemCommand request, CancellationToken cancellationToken)
{
var item = await _context.Items.FindAsync(request.ItemID);
#region Create new order if needed
if (request.OrderID == null || request.OrderID == 0)
{
var order = new Order
{
CustomerID = request.CustomerID,
Active = true,
CreatedAt = DateTime.Now,
MerchantID = item.MerchantID,
OrderStatusTypeID = _context.OrderStatusTypes.First().ID,
};
_context.Orders.Add(order);
await _context.SaveChangesAsync(cancellationToken);
request.OrderID = order.ID;
}
if (request.OrderID == 0)
{
return(new CreateCartItemModel());
}
#endregion
var lineItemAmount = 0M;
#region Determine Price
switch (item.PriceTypeID)
{
default:
lineItemAmount = item.Price.Value;
break;
}
#endregion
try
{
var lineItems = _context.LineItems
.Where(l => l.OrderID == request.OrderID && l.ItemID == request.ItemID)
.ToList();
var currentQty = lineItems.Count;
if (request.AddSingleItem)
{
//add single item
_context.LineItems.Add(new LineItem
{
OrderID = request.OrderID.Value,
ItemID = request.ItemID,
ItemAmount = lineItemAmount
});
}
else if (currentQty > 0 && request.NewQty == 0)
{
//remove all items
var removeAllLineItems = _context.LineItems.Where(l => l.OrderID == request.OrderID && l.ItemID == request.ItemID);
_context.LineItems.RemoveRange(removeAllLineItems);
}
else if (request.NewQty > 0)
{
var qtyDiff = request.NewQty.Value - currentQty;
if (qtyDiff > 0)
{
for (int i = 0; i < qtyDiff; i++)
{
_context.LineItems.Add(new LineItem
{
OrderID = request.OrderID.Value,
ItemID = request.ItemID,
ItemAmount = lineItemAmount
});
}
}
else if (qtyDiff < 0)
{
qtyDiff = -qtyDiff;
lineItems = lineItems != null && qtyDiff < lineItems.Count
? lineItems.GetRange(lineItems.Count - qtyDiff, qtyDiff)
: lineItems;
_context.LineItems.RemoveRange(lineItems);
}
else
{
//do nothing, the current qty is equal to the NewQty
}
}
await _context.SaveChangesAsync(cancellationToken);
return(new CreateCartItemModel
{
CustomerID = request.CustomerID,
ItemID = request.ItemID,
OrderID = request.OrderID.Value,
NewQty = null
});
}
catch (Exception e)
{
return(new CreateCartItemModel());
}
}