//

 using System;

 using System.Collections.Generic;

 using System.ComponentModel;

 using System.Linq;

 using System.Reflection;

 using System.Runtime.Serialization;

 using SharpLib.Utils;

 namespace SharpLib.Ear

 {

     /// <summary>

     /// Event Action Router (Ear) is a generic and extensible framework allowing users to execute actions in response to events. 

     /// Users can implement their own events and actions.

     /// </summary>

     [DataContract]

     [KnownType("DerivedTypes")]

     public class Manager

     {

         /// <summary>

         /// Our events instances.

         /// </summary>

         [DataMember]

         public List<Event> Events;

         /// <summary>

         /// Constructor

         /// </summary>

         public Manager()

         {

             Init();

         }

         /// <summary>

         /// Executes after internalization took place.

         /// </summary>

         public void Init()

         {

             if (Events == null)

             {

                 Events = new List<Event>();

             }

         }

         /// <summary>

         /// Trigger the given event.

         /// </summary>

         /// <param name="aEventType"></param>

         public void TriggerEvent<T>() where T: class

         {

             //Only trigger enabled events matching the desired type

             foreach (Event e in Events.Where(e => e.GetType() == typeof(T) && e.Enabled))

             {

                 e.Trigger();

             }

         }

         /// <summary>

         /// Trigger the given event.

         /// </summary>

         /// <param name="aEventType"></param>

         public void TriggerEvent<T>(T aEvent) where T : class

         {

             //Only trigger events matching the desired type

             foreach (Event e in Events.Where(e => e.Equals(aEvent) && e.Enabled))

             {

                 e.Trigger();

             }

         }

         /// <summary>

         /// Remove the specified action from the event it belongs too.

         /// </summary>

         /// <param name="aAction"></param>

         public void RemoveAction(Action aAction)

         {

             foreach (Event e in Events)

             {

                 if (e.Actions.Remove(aAction))

                 {

                     //We removed our action, we are done here.

                     return;

                 }

             }

         }

         /// <summary>

         /// Allow extending our data contract.

         /// See KnownType above.

         /// </summary>

         /// <returns></returns>

         private static IEnumerable<Type> DerivedTypes()

         {

             return SharpLib.Utils.Reflection.GetDerivedTypes<Manager>();

         }

     }

 }