feat: implement WCS/WMS message handlers for transport orders, departure notifications, and HU changes

03_Realisierung/Code Snippets/HostBooking/InterfaceWcsWms/MessageImplementation/HuChangeHandler.cs

@@ -0,0 +1,94 @@
+using System;
+using System.Linq;
+using Gebhardt.Shared;
+using Gebhardt.StoreWare.Wcs.Common;
+using Gebhardt.StoreWare.Wcs.Common.DbAccess;
+using Gebhardt.StoreWare.Wcs.Common.DbAccess.Constants;
+using Gebhardt.StoreWare.Wcs.Common.DbAccess.Factories;
+using Gebhardt.StoreWare.Wcs.Common.DbAccess.Model;
+using Gebhardt.StoreWare.Wcs.Common.DbAccess.Model.Enums;
+using Gebhardt.StoreWare.Wcs.Common.DbAccess.Queries;
+using Gebhardt.StoreWare.Wcs.HostBooking.InterfaceWcsWms.Interfaces;
+using Gebhardt.StoreWare.WcsWms.InterfaceWcsWms.Interfaces;
+
+namespace Gebhardt.StoreWare.Wcs.HostBooking.InterfaceWcsWms.MessageImplementation
+{
+	public class HuChangeHandler : IHandleRecord<IHuChange>
+	{
+		private readonly IWcsDbContextFactory _dbContextFactory;
+		private readonly LeFactory _leFactory = LeFactory.GetInstance();
+		public HuChangeHandler(IWcsDbContextFactory dbContextFactory)
+		{
+			_dbContextFactory = dbContextFactory;
+		}
+
+		public bool Handle(IHuChange message)
+		{
+			using IWcsDbContext db = _dbContextFactory.GetDbContext();
+
+			Le le = db.Le.ByLeNo(message.LeNo);
+			if (le == null)
+			{
+				Log.Write(LogLevel.Info, $"HuChange - HU {message.LeNo} is unknown. Create HU...");
+
+				LeTypeName type = LeType.GetLeTypeFromLeNo(message.LeNo);
+				if (type == null)
+				{
+					throw new LeNoWrongFormatException($"HuChange - The prefix of {message.LeNo} is not known.");
+				}
+
+				le = db.Add(_leFactory.RegularLe(message.LeNo, type)).Entity;
+				db.SaveChanges();
+			}
+			UpdateLeTypeIfGiven(message, le, db);
+			le.IsEmpty = message.IsLeEmpty ?? true;
+			le.AbcArea = !le.IsEmpty ? SetAbcArea(message, le) : null;
+			le.Subdivision = message.Subdivision?.ToEnumFromDescription<SubdivisionType>() ?? le.Subdivision;
+			if (le.IsEmpty)
+			{
+				le.Weight = le.LeType.TareWeight; // Since there is no scale in the upper loops
+				le.ArticleTag = null;
+			}
+			else
+			{
+				le.ArticleTag = message.ArticleTag;
+			}
+
+			db.SaveChanges();
+			return true;
+		}
+
+		private static string SetAbcArea(IHuChange message, Le le)
+		{
+			if (message.AbcArea == null)
+			{
+				return le.AbcArea;
+			}
+			if (!Area.IsValid(message.AbcArea) && !Area.IsClassificationForOldStorage(message.AbcArea))
+			{
+				return Area.Z;
+			}
+			return message.AbcArea;
+		}
+
+		private static void UpdateLeTypeIfGiven(IHuChange message, Le le, IWcsDbContext db)
+		{
+			if (message.LeType == null)
+			{
+				return;
+			}
+			if (!Enum.IsDefined(typeof(LeTypeName), message.LeType))
+			{
+				throw new InvalidOperationException($"LeType={message.LeType} does not match an enum. Message: {message}");
+			}
+
+			LeType leType = db.LeType.SingleOrDefault(l => l.Name == (LeTypeName)Enum.Parse(typeof(LeTypeName), message.LeType));
+			if (leType == null)
+			{
+				throw new InvalidOperationException($"LeType={message.LeType} does not match exactly one DB entry -. Message: {message}");
+			}
+
+			le.SetLeType(leType);
+		}
+	}
+}