facade & composite

Author: T0shik

README.md

@@ -17,6 +17,8 @@ Full Playlist can be found [here](https://www.youtube.com/playlist?list=PLOeFnOV
 - [Adapter](https://youtu.be/9ZFN8DrvcYA)
 - [Decorator](https://youtu.be/6rTnCkdbJA4)
 - [Proxy](https://youtu.be/m0aXyRDEQqU)
+- [Facade](https://youtu.be/xzpp5_ak8Hg)
+- [Composite](https://youtu.be/UsynwPeipb8)
 
 
 ### Behavioral Patterns

composite/example.linq

@@ -0,0 +1,35 @@
+<Query Kind="Program" />
+
+void Main()
+{
+	new CompositeComponent().Dump();
+}
+
+public interface IComponent
+{
+	IList<IComponent> Children { get; }
+}
+
+public class RegularComponent : IComponent
+{
+	public string Name = nameof(RegularComponent);
+	public IList<IComponent> Children => null;
+}
+
+public class OrdinaryComponent : IComponent
+{
+	public string Name = nameof(OrdinaryComponent);
+	public IList<IComponent> Children => null;
+}
+
+public class CompositeComponent : IComponent
+{
+	public string Name = nameof(CompositeComponent);
+	public IList<IComponent> Children => new List<IComponent>
+	{
+		new RegularComponent(),
+		new OrdinaryComponent(),
+		new CompositeComponent(),
+		new CompositeComponent(),
+	};
+}

composite/linked_list.linq

@@ -0,0 +1,55 @@
+<Query Kind="Program" />
+
+void Main()
+{
+	var list = new LinkedList<int>();	
+	
+	list.Add(1);
+	list.Add(2);
+	list.Add(3);
+	list.Add(4);
+	
+	list.Get(0).Dump();
+	list.Get(1).Dump();
+	list.Get(2).Dump();
+	list.Get(3).Dump();
+	list.Get(4).Dump();
+}
+
+public class LinkedList<T> 
+{
+	public LinkedList() {}
+	public LinkedList(T v) => value = v;
+
+	T value;
+	LinkedList<T> _next;
+
+	public T Get(int i)
+	{
+		if (_next == null)
+		{
+			throw new IndexOutOfRangeException();
+		}
+		
+		if (i == 0)
+		{
+			return value;
+		}
+		
+		return _next.Get(--i);
+	}
+
+	public void Add(T v)
+	{
+		if (_next == null)
+		{
+			value = v;
+			_next = new LinkedList<T>();
+		}
+		else
+		{
+			_next.Add(v);
+		}
+	}
+
+}

composite/products.linq

@@ -0,0 +1,45 @@
+<Query Kind="Program" />
+
+void Main()
+{
+	new Table().Dump();
+}
+
+public abstract class Product
+{
+	public List<Product> Components { get; set; } = new List<Product>();
+}
+
+public class Table : Product
+{
+	public Table()
+	{
+		Components.Add(new Legs());
+		Components.Add(new Top());
+		Components.Add(new Screws());
+	}
+}
+
+public class Top : Product { }
+
+public class Legs : Product
+{
+	public Legs()
+	{
+		Components.Add(new Feet());
+		Components.Add(new Padding());
+		Components.Add(new Screws());
+	}
+}
+
+public class Feet : Product
+{
+}
+
+public class Padding : Product
+{
+}
+
+public class Screws : Product
+{
+}

composite/tree.linq

@@ -0,0 +1,43 @@
+<Query Kind="Program" />
+
+void Main()
+{
+	var top = new Node("top");
+	
+	top.Nodes.Add(new Node("2nd level - 0"));
+	var lvl21 = new Node("2nd level - 1");
+	top.Nodes.Add(lvl21);
+	var lvl2 = new Node(">> 2nd level - 2");
+	top.Nodes.Add(lvl2);
+	
+	lvl21.Nodes.Add(new Node("3rd level - 0"));
+	lvl21.Nodes.Add(new Node("3rd level - 1"));
+	lvl21.Nodes.Add(new Node("3rd level - 2"));
+	
+	
+	top.ComputeNodes("nothing");
+}
+
+public class Node
+{
+	public Node(string data)
+	{
+		this.NodeData = data;
+	}
+	
+	public string NodeData { get; set; }
+
+	public List<Node> Nodes { get; set; } = new List<Node>() {};
+
+
+	public void ComputeNodes(string parentScope) {
+		var data = NodeData.Dump("start --" + parentScope);
+		
+		foreach (var n in Nodes)
+		{
+			n.ComputeNodes(data);
+		}
+		
+		NodeData.Dump("end");
+	}
+}

facade/Kitchen/Appliences/Fridge.cs

@@ -0,0 +1,7 @@
+namespace Madness.Appliences
+{
+    public class Fridge
+    {
+        
+    }
+}

facade/Kitchen/Appliences/Microwave.cs

@@ -0,0 +1,7 @@
+namespace Madness.Appliences
+{
+    public class Microwave
+    {
+        
+    }
+}

facade/Kitchen/Appliences/Oven.cs

@@ -0,0 +1,7 @@
+namespace Madness.Appliences
+{
+    public class Oven
+    {
+        
+    }
+}

facade/Kitchen/Appliences/Stove.cs

@@ -0,0 +1,7 @@
+namespace Madness.Appliences
+{
+    public class Stove
+    {
+        
+    }
+}

facade/Kitchen/Dishes/BigMac.cs

@@ -0,0 +1,7 @@
+namespace Madness.Dishes
+{
+    public class BigMac
+    {
+
+    }
+}