#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using HeuristicLab.Clients.Hive;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Analysis.SolutionCaching {
  [Item("RunCollectionModifierTask", "Represents task which executes a RunCollectionModifierExecutable.")]
  [StorableClass]
  public class RunCollectionModifierTask : ItemTask {
    public new RunCollectionModifierExecutable Item {
      get { return (RunCollectionModifierExecutable)base.Item; }
      set { base.Item = value; }
    }

    public override HiveTask CreateHiveTask() {
      return new RunCollectionModifierHiveTask(this);
    }

    [Storable]
    private bool isParallelizable;
    public override bool IsParallelizable {
      get { return isParallelizable; }
      set { isParallelizable = value; }
    }

    #region Constructors and Cloning
    public RunCollectionModifierTask(RunCollectionModifierExecutable executable)
      : base() {
      Item = executable;
      isParallelizable = true;
    }
    [StorableConstructor]
    protected RunCollectionModifierTask(bool deserializing) { }
    protected RunCollectionModifierTask(RunCollectionModifierTask original, Cloner cloner)
      : base(original, cloner) {
      isParallelizable = original.isParallelizable;
    }
    public override IDeepCloneable Clone(Cloner cloner) {
      return new RunCollectionModifierTask(this, cloner);
    }
    #endregion

    public override bool CanChangeDescription {
      get {
        if (Item == null)
          return false;
        else
          return Item.CanChangeDescription;
      }
    }

    public override bool CanChangeName {
      get {
        if (Item == null)
          return false;
        else
          return Item.CanChangeName;
      }
    }

    public override string Description {
      get {
        if (Item == null)
          return string.Empty;
        else
          return Item.Description;
      }
      set { Item.Description = value; }
    }

    public override string Name {
      get {
        if (Item == null)
          return "RunCollectionModifierTask";
        else
          return Item.Name;
      }
      set { Item.Name = value; }
    }

    public override ExecutionState ExecutionState {
      get { return Item.ExecutionState; }
    }

    public override TimeSpan ExecutionTime {
      get { return Item.ExecutionTime; }
    }

    public override void Pause() {
      Item.Pause();
    }

    public override void Prepare() {
      Item.Prepare();
    }

    public override void Start() {
      Item.Start();
    }

    public override void Stop() {
      Item.Stop();
    }

    protected override void RegisterItemEvents() {
      base.RegisterItemEvents();
      Item.Stopped += new EventHandler(executable_Stopped);
      Item.Paused += new EventHandler(executable_Paused);
      Item.ExceptionOccurred += new EventHandler<EventArgs<Exception>>(executable_ExceptionOccurred);
      Item.DescriptionChanged += new EventHandler(executable_DescriptionChanged);
      Item.NameChanged += new EventHandler(executable_NameChanged);
      Item.NameChanging += new EventHandler<CancelEventArgs<string>>(executable_NameChanging);
      Item.ExecutionStateChanged += new EventHandler(executable_ExecutionStateChanged);
      Item.ExecutionTimeChanged += new EventHandler(executable_ExecutionTimeChanged);
      Item.Started += new EventHandler(executable_Started);
    }

    protected virtual void DeregisterOptimizerEvents() {
      Item.Stopped -= new EventHandler(executable_Stopped);
      Item.Paused -= new EventHandler(executable_Paused);
      Item.ExceptionOccurred -= new EventHandler<EventArgs<Exception>>(executable_ExceptionOccurred);
      Item.DescriptionChanged -= new EventHandler(executable_DescriptionChanged);
      Item.NameChanged -= new EventHandler(executable_NameChanged);
      Item.NameChanging -= new EventHandler<CancelEventArgs<string>>(executable_NameChanging);
      Item.ExecutionStateChanged -= new EventHandler(executable_ExecutionStateChanged);
      Item.ExecutionTimeChanged -= new EventHandler(executable_ExecutionTimeChanged);
      Item.Started -= new EventHandler(executable_Started);
      base.DeregisterItemEvents();
    }

    protected void executable_NameChanging(object sender, CancelEventArgs<string> e) {
      OnNameChanging(new CancelEventArgs<string>(e.Value, e.Cancel));
    }

    protected void executable_NameChanged(object sender, EventArgs e) {
      this.OnNameChanged();
    }

    protected void executable_DescriptionChanged(object sender, EventArgs e) {
      OnDescriptionChanged();
    }

    protected virtual void executable_ExceptionOccurred(object sender, EventArgs<Exception> e) {
      OnTaskFailed(e);
    }

    protected virtual void executable_Started(object sender, EventArgs e) {
      OnTaskStarted();
    }

    protected virtual void executable_Stopped(object sender, EventArgs e) {
      OnTaskStopped();
    }

    protected virtual void executable_Paused(object sender, EventArgs e) {
      OnTaskPaused();
    }

    protected virtual void executable_ExecutionTimeChanged(object sender, EventArgs e) {
      OnExecutionTimeChanged();
    }

    protected virtual void executable_ExecutionStateChanged(object sender, EventArgs e) {
      OnExecutionStateChanged();
    }
  }
}