facade

DesignPatternGuru/DesignPatternGuru.sln

@@ -23,7 +23,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bridge", "Bridge\Bridge.csp
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Composite", "Composite\Composite.csproj", "{8EAAC7FD-ED5E-4567-B1C1-F79AC79C9820}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Decorator", "Decorator\Decorator.csproj", "{8AA3ECFD-4F9A-433D-884C-E76E5050AFBF}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Decorator", "Decorator\Decorator.csproj", "{8AA3ECFD-4F9A-433D-884C-E76E5050AFBF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Facade", "Facade\Facade.csproj", "{7D6D306D-BC44-407A-9A39-104C90A3FA39}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -67,6 +69,10 @@ Global
 		{8AA3ECFD-4F9A-433D-884C-E76E5050AFBF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{8AA3ECFD-4F9A-433D-884C-E76E5050AFBF}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{8AA3ECFD-4F9A-433D-884C-E76E5050AFBF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7D6D306D-BC44-407A-9A39-104C90A3FA39}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7D6D306D-BC44-407A-9A39-104C90A3FA39}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7D6D306D-BC44-407A-9A39-104C90A3FA39}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7D6D306D-BC44-407A-9A39-104C90A3FA39}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -81,6 +87,7 @@ Global
 		{60D1EE6E-282D-4613-8B1D-DE355768DCBA} = {0B9333EC-FB73-4FEE-B600-9ECCD5A356B1}
 		{8EAAC7FD-ED5E-4567-B1C1-F79AC79C9820} = {0B9333EC-FB73-4FEE-B600-9ECCD5A356B1}
 		{8AA3ECFD-4F9A-433D-884C-E76E5050AFBF} = {0B9333EC-FB73-4FEE-B600-9ECCD5A356B1}
+		{7D6D306D-BC44-407A-9A39-104C90A3FA39} = {0B9333EC-FB73-4FEE-B600-9ECCD5A356B1}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {3E5A9C6B-2E8A-466E-B5E0-4379902EFFAC}

DesignPatternGuru/Facade/Client.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Facade
+{
+	internal class Client
+	{
+		public static void ClientCode(Facades.Facade facade)
+		{
+			Console.WriteLine(facade.Operation());
+		}
+	}
+}

DesignPatternGuru/Facade/Facade.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

DesignPatternGuru/Facade/Facades/Facade.cs

@@ -0,0 +1,34 @@
+using Facade.Subsystems;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Facade.Facades
+{
+	internal class Facade
+	{
+		protected Subsystem1 _subsystem1;
+		protected Subsystem2 _subsystem2;
+
+		public Facade(Subsystem1 subsystem1, Subsystem2 subsystem2)
+		{
+			_subsystem1 = subsystem1;
+			_subsystem2 = subsystem2;
+		}
+
+		public string Operation()
+		{
+			StringBuilder builder = new StringBuilder();
+			builder.AppendLine("Facade initializes subsystems:");
+			builder.AppendLine(_subsystem1.Operation1());
+			builder.AppendLine(_subsystem2.Operation1());
+			builder.AppendLine("Facade order subsystems to perform the action:");
+			builder.AppendLine(_subsystem1.OperationN());
+			builder.AppendLine(_subsystem2.OperationN());
+
+			return builder.ToString();
+		}
+	}
+}

DesignPatternGuru/Facade/Program.cs

@@ -0,0 +1,15 @@
+using Facade.Subsystems;
+
+namespace Facade
+{
+	internal class Program
+	{
+		static void Main(string[] args)
+		{
+			Subsystem1 subsystem1 = new Subsystem1();
+			Subsystem2 subsystem2 = new Subsystem2();
+			Facades.Facade facade = new Facades.Facade(subsystem1, subsystem2);
+			Client.ClientCode(facade);
+		}
+	}
+}

DesignPatternGuru/Facade/Subsystems/Subsystem1.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Facade.Subsystems
+{
+	internal class Subsystem1
+	{
+		public string Operation1()
+		{
+			return "Subsystem1: Ready!";
+		}
+
+		public string OperationN()
+		{
+			return "Subsystem1: Go!";
+		}
+	}
+}

DesignPatternGuru/Facade/Subsystems/Subsystem2.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Facade.Subsystems
+{
+	internal class Subsystem2
+	{
+		public string Operation1()
+		{
+			return "Subsystem2: Get ready!";
+		}
+
+		public string OperationN()
+		{
+			return "Subsystem: Fire!";
+		}
+	}
+}