finish implementation of electronic media

.vscode/launch.json

@@ -11,7 +11,7 @@
             "preLaunchTask": "build",
             // If you have changed target frameworks, make sure to update the program path.
             "program": "${workspaceFolder}/bin/Debug/netcoreapp3.1/Bücherwurm.dll",
-            "args": ["books.json"],
+            "args": ["books.json", "magazines.json"],
             "cwd": "${workspaceFolder}",
             // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
             "console": "integratedTerminal",

Administration.cs

@@ -94,7 +94,7 @@ namespace Bücherwurm
             Console.WriteLine("Bitte geben Sie die ID des Buches an:");
             var Id = int.Parse(Console.ReadLine());
             Catalogue.Remove(Id);
-            Inventory.BookRemove(Id);
+            Inventory.ProductRemove(Id);
         }
 
         public void ListInventory()
@@ -180,22 +180,30 @@ namespace Bücherwurm
             Console.WriteLine("Eine leere Zeile beendet die Aufnahme der entliehenen Exemplare.");
             var Input = "";
             var LendList = new List<int>();
+            var VirtualList = new List<int>();
             do
             {
-                Console.WriteLine("Bitte Geben sie die Exemplar ID an:");
+                Console.WriteLine("Bitte Geben sie die Produkt ID an:");
                 Input = Console.ReadLine();
                 if (Input != "")
                 {
-                    var ItemId = int.Parse(Input);
+                    var ProductId = int.Parse(Input);
-                    if (Inventory.isAvailable(ItemId) && !LendList.Contains(ItemId))
+                    if (Catalogue.LookupProduct(ProductId).LendType == LendTypeEnum.Physical)
                     {
-                        LendList.Add(ItemId);
+                        if (Inventory.IsProductAvailable(ProductId).Count > 0 && !Inventory.IsProductAvailable(ProductId).TrueForAll(ItemId => LendList.Contains(ItemId)))
+                        {
+                            LendList.Add(Inventory.IsProductAvailable(ProductId).Find(ItemId => !LendList.Contains(ItemId)));
+                            Console.WriteLine("ok");
+                        }
+                        else
+                        {
+                            Console.WriteLine("Exemplar unbekannt oder bereits entliehen.");
+                        }
+                    } else
+                    {
+                        VirtualList.Add(ProductId);
                         Console.WriteLine("ok");
                     }
-                    else
-                    {
-                        Console.WriteLine("Exemplar unbekannt oder bereits entliehen.");
-                    }
                 }
             } while (Input != "");
             Console.WriteLine("Bitte geben Sie den Kundennamen an:");
@@ -204,6 +212,13 @@ namespace Bücherwurm
             {
                 int time = Catalogue.LookupProduct(Inventory.LookupItem(id).ProdId).LendTime;
                 Lendings.Lend(id, Customer, time);
+                Inventory.MarkAsLended(id);
+            }
+            foreach (var prod in VirtualList)
+            {
+                int time = Catalogue.LookupProduct(prod).LendTime;
+                var linkDummy = string.Format("https://dies.ist.ein.downloadlink.fuer.{0}", prod);
+                Console.WriteLine("Dies ist ein {0} Tage gültiger Download-Link: {1}", time, linkDummy);
             }
             Console.WriteLine("Ausleihe erfolgreich!");
         }
@@ -215,6 +230,7 @@ namespace Bücherwurm
             if (Lendings.GetActiveLendings().Find(lending => lending.LendId == Returns) != null)
             {
                 Lendings.Return(Returns);
+                Inventory.MarkAsAvailable(Lendings.GetActiveLendings().Find(lend => lend.LendId == Returns).LendItem);
                 Console.WriteLine("Ausleihe erfolgreich zurückgegeben.");
             }
             else
@@ -223,14 +239,30 @@ namespace Bücherwurm
             }
         }
 
+        public void MakeImport(string JsonTextBooks)
+        {
+            Catalogue.ImportBooks(JsonTextBooks);
+            foreach (var prod in Catalogue.GetProducts())
+            {
+                if (prod.LendType == LendTypeEnum.Physical)
+                {
+                    Inventory.Add(prod);
+                    Inventory.Add(prod);
+                }
+            }
+        }
+
         public void MakeImport(string JsonTextBooks, string JsonTextMagazines)
         {
             Catalogue.ImportBooks(JsonTextBooks);
             Catalogue.ImportMagazines(JsonTextMagazines);
             foreach (var prod in Catalogue.GetProducts())
             {
-                Inventory.Add(prod);
+                if (prod.LendType == LendTypeEnum.Physical)
-                Inventory.Add(prod);
+                {
+                    Inventory.Add(prod);
+                    Inventory.Add(prod);
+                }
             }
         }
     }

Catalogue.cs

@@ -51,6 +51,7 @@ namespace Bücherwurm
             {
                 var epaper = new EPaper(mag);
                 epaper.OverwriteNullId(NextId);
+                ePapers.Add(epaper);
                 NextId += 1;
             }
             Products.AddRange(new List<IProduct>(ePapers));

Inventory.cs

@@ -30,7 +30,7 @@ namespace Bücherwurm
             InventoryList.RemoveAll(item => item.ItemId == Id);
         }
 
-        public void BookRemove(int ProdId)
+        public void ProductRemove(int ProdId)
         {
             InventoryList.RemoveAll(item => item.ProdId == ProdId);
         }
@@ -45,14 +45,41 @@ namespace Bücherwurm
             return (InventoryList.Find(item => item.ItemId == Id) != null);
         }
 
-        public bool isAvailable(int Id)
+        public bool IsAvailable(int ItemId)
         {
-            return (InventoryList.Find(item => item.ItemId == Id && item.Status == StatusEnum.Available) != null);
+            return (InventoryList.Find(item => item.ItemId == ItemId && item.Status == StatusEnum.Available) != null);
+        }
+
+        public List<int> IsProductAvailable(int ProdId)
+        {
+            var items = InventoryList.FindAll(item => item.ProdId == ProdId && item.Status == StatusEnum.Available);
+            var ret = new List<int>();
+            foreach (var item in items)
+            {
+                ret.Add(item.ItemId);
+            }
+            if (ret.Count == 0)
+            {
+                return null;
+            } else
+            {
+                return ret;
+            }
         }
 
         public Item LookupItem(int ItemId)
         {
             return InventoryList.Find(item => ItemId == item.ItemId);
         }
+
+        public void MarkAsLended(int ItemId)
+        {
+            InventoryList[InventoryList.FindIndex(item => item.ItemId == ItemId)].Status = StatusEnum.Lended;
+        }
+
+        public void MarkAsAvailable(int ItemId)
+        {
+            InventoryList[InventoryList.FindIndex(item => item.ItemId == ItemId)].Status = StatusEnum.Available;
+        }
     }
 }

Program.cs

@@ -13,7 +13,7 @@ namespace Bücherwurm
             {
                 Console.WriteLine("Versuche Bücher aus JSON Katalog von {0} zu importieren...", args[0]);
                 string jsonString = File.ReadAllText(args[0]);
-                Admin.MakeImport(jsonString, "");
+                Admin.MakeImport(jsonString);
                 Console.WriteLine("Erfolg!");
             } else if (args.Length == 2)
             {