1 files changed, 37 insertions, 0 deletions
diff --git a/DesignPatterns/src/app/DesignPatterns.State/ProcessingTransactionState.cs b/DesignPatterns/src/app/DesignPatterns.State/ProcessingTransactionState.cs
new file mode 100644
index 0000000..f91cae4
--- /dev/null
+++ b/DesignPatterns/src/app/DesignPatterns.State/ProcessingTransactionState.cs
@@ -0,0 +1,37 @@
+using System;
+
+namespace DesignPatterns.State {
+	internal class ProcessingTransactionState : IState {
+		public ProcessingTransactionState( IPosTerminal terminal ) {
+			_terminal = terminal;
+		}
+
+		public void ProcessTransaction( ) {
+			if ( (++_counter % 5) == 0 ) {
+				_terminal.CurrentState = new TransactionRejectedState( _terminal );
+			}
+			else {
+				_terminal.CurrentState = new TransactionApprovedState( _terminal );
+			}
+		}
+
+		public void PrintReceipt( ) {
+			Console.Out.WriteLine( "The transaction needs to be processed first" );
+		}
+
+		public void SwipeCard( string cardNumber ) {
+			Console.Out.WriteLine( "You have already swiped a card" );
+		}
+
+		public void EnterAmount( double amount ) {
+			Console.Out.WriteLine( "You have already entered an amount" );
+		}
+
+		public void EnterPin( string pin ) {
+			Console.Out.WriteLine( "You have already entered a PIN" );
+		}
+
+		private readonly IPosTerminal _terminal;
+		private static int _counter;
+	}
+}
+\ No newline at end of file