public async Task <IActionResult> Edit(int itemId)
{
var model = new CartEditViewModel();
var order = await GetOrderAsync();
var lineItems = order.LineItems.Where(x => x.ItemID == itemId);
var lineItem = lineItems.LastOrDefault();
if (lineItem != null)
{
model.ItemID = lineItem.ItemID;
model.Quantity = lineItems.Count();
}
return(PartialView("_Edit", model));
}
public async Task <IActionResult> Edit(CartEditViewModel model)
{
var success = true;
var msg = string.Empty;
try
{
var orderTask = GetOrderAsync();
var itemTask = _api.GetAsync <ItemModel>($"/items/{model.ItemID}");
await Task.WhenAll(orderTask, itemTask);
var item = itemTask.Result;
var order = orderTask.Result;
var itemCount = order.LineItems.Count;
if (itemCount > 0)
{
if (model.Quantity > itemCount)
{
// add
for (int i = 0; i < model.Quantity - itemCount; i++)
{
success &= AddLineItem(item, order);
}
}
else if (model.Quantity < itemCount)
{
// remove
for (int i = 0; i < itemCount - model.Quantity && i < itemCount; i++)
{
_api.Delete($"/lineItems/{order.LineItems[i].ID}");
}
}
}
}
catch (Exception ex)
{
msg = ex.Message;
success = false;
}
return(Json(new { success, msg }));
}