// Copyright © 2008 John M Rusk (http://dotnet.agilekiwi.com)
// 
// You may use this source code ("The Software") in any manner you wish, 
// subject to the following conditions:
//
// (a) The above copyright notice and this permission notice shall be
//     included in all copies or substantial portions of the Software.
//
// (b) THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
//     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
//     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
//     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
//     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
//     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
//     OTHER DEALINGS IN THE SOFTWARE.

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

// ReSharper disable FieldCanBeMadeReadOnly
#pragma warning disable 169


namespace ConsoleApplication1
{
    class Program
    {

        static void Main(string[] args)
        {
        }

	// Defining the classes which do the work
        public class Event
        {
            public Event(string code)
            {
                Code = code;
            }

            public readonly string Code;

            public static implicit operator Event(string code)
            {
                return new Event(code);
            }

            public Transition TransitionTo(State s)
            {
                return new Transition(this, s); // from this to s
            }
        }

        public class Command
        {
            public Command(string code)
            {
                Code = code;
            }

            public readonly string Code;

            public static implicit operator Command(string code)
            {
                return new Command(code);
            }
        }

        public class Transition
        {
            public Transition(Event e, State targetState)
            {
                FromEvent = e;
                ToState = targetState;
            }

            public readonly Event FromEvent;
            public readonly State ToState;
        }

        public class State: IEnumerable
        {
            public void Add(Command action){}
            public void Add(Transition transition){}
            public IEnumerator GetEnumerator()
            {
                throw new System.NotImplementedException();
            }
        }

	// *** The DSL example itself

        
        public Event 
            DoorClosed = "D1CL",
            DrawOpened = "D2OP", 
            LightOn    = "L1ON";

        public Command
            LockPanel  = "PNLK",
            UnlockDoor = "D1UL";

        public State
            Idle,
            Active;

        protected void Setup()
        {
            Idle = new State
                       {
                           UnlockDoor,
                           LockPanel,
                           DoorClosed.TransitionTo(Active)
                       };
            Active = new State
                         {
                             DrawOpened.TransitionTo(WaitingForLight),
                             LightOn.TransitionTo(WaitingForDraw)
                         };
        }


         // a couple of extra states which were referred to but not defined in Martin Fowler's original example
         State
            WaitingForLight,
            WaitingForDraw;

    }

    #pragma warning restore 169
    // ReSharper restore FieldCanBeMadeReadOnly

}