Add decorator

BadCakeProgram/Program.cs

@@ -1,6 +1,4 @@
-using System;
+public class BadCakeProgram
-
-public class BadCakeProgram
 {
     public static void Main(string[] args)
     {
@@ -124,10 +122,3 @@ public class BadCakeProgram
     }
 
 }
-
-
-
-
-
-
-

Decorator/DecoratedComponent.cs

@@ -0,0 +1,16 @@
+public class DecoratedComponent : IComponent
+{
+    private readonly IComponent _component;
+
+    public DecoratedComponent(IComponent component)
+    {
+        _component = component ?? throw new ArgumentNullException(nameof(component));
+    }
+
+    public void DoSomething()
+    {
+        Console.WriteLine("I can add functionality before");
+        _component.DoSomething();
+        Console.WriteLine("I can add functionality after");
+    }
+}

Decorator/Decorator.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Decorator/IComponent.cs

@@ -0,0 +1,4 @@
+public interface IComponent
+{
+    void DoSomething();
+}

Decorator/OriginalComponent.cs

@@ -0,0 +1,7 @@
+public class OriginalComponent : IComponent
+{
+    public void DoSomething()
+    {
+        Console.WriteLine("I am the original component doing something important");
+    }
+}

Decorator/Program.cs

@@ -0,0 +1,4 @@
+var component = new OriginalComponent();
+var decorated = new DecoratedComponent(component);
+
+decorated.DoSomething();

Strategy/Program.cs

@@ -102,10 +102,3 @@ public class StrategyCakeProgram
         }
     }
 }
-
-
-
-
-
-
-