InventoryType from XML

Transaction updates

InventoryTraker.Web/Controllers/InventoryController.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using System.Web.Mvc;
 using AutoMapper;
 using AutoMapper.QueryableExtensions;
+using InventoryTraker.Web.ActionResults;
 using InventoryTraker.Web.Core;
 using InventoryTraker.Web.Data;
 using InventoryTraker.Web.Models;
@@ -26,14 +27,22 @@ namespace InventoryTraker.Web.Controllers
 
 		public JsonResult All()
 		{
-			var viewModels = _context.Inventories
-				.OrderBy(x => x.InventoryType.Name)
+			var viewModels =
+				AllInventory()
 				.ProjectTo<InventoryViewModel>()
 				.ToArray();
 
 			return BetterJson(viewModels);
 		}
 
+		private IQueryable<Inventory> AllInventory()
+		{
+			return _context
+				.Inventories
+				.Where(x => x.Quantity > 0)
+				.OrderBy(x => x.InventoryType.Name);
+		}
+
 		public JsonResult Add(InventoryAddForm form)
 		{
 			if (!ModelState.IsValid)
@@ -42,18 +51,56 @@ namespace InventoryTraker.Web.Controllers
 			var inventory = Mapper.Map<Inventory>(form);
 			inventory.InventoryType = _context.InventoryTypes.Find(form.InventoryTypeId);
 			_context.Inventories.Add(inventory);
-			inventory.Transactions = new List<Transaction>();
-			inventory.Transactions.Add(new Transaction
+			inventory.Transactions = new List<Transaction>
 			{
-				AddedQuantity = inventory.Quantity,
-				Memo = "Arrival",
-				Timestamp = DateTime.Now,
-				TransactionDate = inventory.AddedDate
-			});
+				new Transaction
+				{
+					AddedQuantity = inventory.Quantity,
+					CurrentQuantity = inventory.Quantity,
+					Memo = "Arrival",
+					Timestamp = DateTime.Now,
+					TransactionDate = inventory.AddedDate
+				}
+			};
 			_context.SaveChanges();
 
 			var model = Mapper.Map<InventoryViewModel>(inventory);
 			return BetterJson(model);
 		}
+
+		public JsonResult Distribute(InventoryDistributeForm form)
+		{
+			if (!ModelState.IsValid)
+				return PackageModelStateErrors();
+
+			foreach (var quantityForm in form.InventoryQuantities)
+			{
+				var inventory = _context.Inventories.Find(quantityForm.InventoryId);
+				
+				// check if it's really there
+				if (inventory == null)
+					return BetterJsonResult.Error($"Inventory {quantityForm.InventoryId} not found");
+				
+				if (inventory.Quantity < quantityForm.Quantity)
+					return BetterJsonResult.Error(
+						$"Inventory {inventory.InventoryType.Name} has only {inventory.Quantity}, trying to remove {quantityForm.Quantity}");
+				inventory.Quantity -= quantityForm.Quantity;
+
+				inventory.Transactions.Add(new Transaction
+				{
+					RemovedQuantity = quantityForm.Quantity,
+					CurrentQuantity = inventory.Quantity,
+					Memo = "Distributed to " + form.Destination,
+					Timestamp = DateTime.Now,
+					TransactionDate = form.DistributedDate
+				});
+			}
+			
+			_context.SaveChanges();
+
+			return BetterJson(AllInventory()
+				.ProjectTo<InventoryViewModel>()
+				.ToArray());
+		}
 	}
 }