namespace DesignPatterns.State {
	public class PosTerminal : IPosTerminal {
		public PosTerminal( ) {
			_currentState = new IdleState( this );
		}

		public IState CurrentState {
			get { return _currentState; }
			set { _currentState = value; }
		}

		public IPosTransaction Transaction {
			get { return _transaction; }
			set { _transaction = value; }
		}

		public void SwipeCard( string cardNumber ) {
			_currentState.SwipeCard( cardNumber );
		}

		public void EnterAmount( double amount ) {
			_currentState.EnterAmount( amount );
		}

		public void EnterPin( string pin ) {
			_currentState.EnterPin( pin );
		}

		public void AuthorizeTransaction( ) {
			_currentState.ProcessTransaction( );
		}

		public void PrintReceipt( ) {
			_currentState.PrintReceipt( );
		}

		public void ProcessTransaction( ) {
			_currentState.ProcessTransaction( );
		}

		private IState _currentState;
		private IPosTransaction _transaction;
	}
}