#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2018 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 System.Collections.Generic;
using System.Linq;
using HeuristicLab.Collections;
using HeuristicLab.Common;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.Operators.Views.GraphVisualization {
  [StorableClass]
  public class GraphVisualizationInfo : DeepCloneable, IGraphVisualizationInfo {
    [StorableConstructor]
    protected GraphVisualizationInfo(bool deserializing) : base() { }
    protected GraphVisualizationInfo(GraphVisualizationInfo original, Cloner cloner)
      : base(original, cloner) {
      shapeInfos = new ObservableSet<IShapeInfo>(original.shapeInfos.Select(x => cloner.Clone(x)));
      connectionInfos = new ObservableSet<IConnectionInfo>(original.connectionInfos.Select(x => cloner.Clone(x)));
      initialShape = cloner.Clone(original.initialShape);
    }
    public override IDeepCloneable Clone(Cloner cloner) {
      return new GraphVisualizationInfo(this, cloner);
    }
    public GraphVisualizationInfo()
      : base() {
      this.shapeInfos = new ObservableSet<IShapeInfo>();
      this.connectionInfos = new ObservableSet<IConnectionInfo>();
    }
    #region IGraphVisualizationInfo Members
    [Storable]
    private IShapeInfo initialShape;
    public virtual IShapeInfo InitialShape {
      get { return this.initialShape; }
      set {
        if (this.initialShape != value) {
          this.initialShape = value;
          this.OnInitialShapeChanged();
        }
      }
    }

    [Storable]
    protected ObservableSet<IShapeInfo> shapeInfos;
    public INotifyObservableCollectionItemsChanged<IShapeInfo> ObserveableShapeInfos {
      get { return shapeInfos; }
    }
    public IEnumerable<IShapeInfo> ShapeInfos {
      get { return shapeInfos; }
    }

    [Storable]
    protected ObservableSet<IConnectionInfo> connectionInfos;
    public INotifyObservableCollectionItemsChanged<IConnectionInfo> ObservableConnectionInfos {
      get { return connectionInfos; }
    }
    public IEnumerable<IConnectionInfo> ConnectionInfos {
      get { return connectionInfos; }
    }

    public virtual void AddShapeInfo(IShapeInfo shapeInfo) {
      this.shapeInfos.Add(shapeInfo);
    }
    public virtual void RemoveShapeInfo(IShapeInfo shapeInfo) {
      this.shapeInfos.Remove(shapeInfo);
      this.connectionInfos.RemoveWhere(c => c.From == shapeInfo);
      this.connectionInfos.RemoveWhere(c => c.To == shapeInfo);
    }

    public virtual void AddConnectionInfo(IConnectionInfo connectionInfo) {
      this.connectionInfos.Add(connectionInfo);
    }
    public virtual void RemoveConnectionInfo(IConnectionInfo connectionInfo) {
      this.connectionInfos.Remove(connectionInfo);
    }

    public IEnumerable<IConnectionInfo> GetConnectionInfos(IShapeInfo shapeInfo) {
      return this.ConnectionInfos.Where(c => c.From == shapeInfo || c.To == shapeInfo);
    }
    public IEnumerable<IConnectionInfo> GetConnectionInfos(IShapeInfo shapeInfo, string connector) {
      return this.ConnectionInfos.Where(c => (c.From == shapeInfo && c.ConnectorFrom == connector) ||
        (c.To == shapeInfo && c.ConnectorTo == connector));
    }

    public event EventHandler InitialShapeChanged;
    protected virtual void OnInitialShapeChanged() {
      EventHandler handler = this.InitialShapeChanged;
      if (handler != null)
        this.InitialShapeChanged(this, EventArgs.Empty);
    }
    #endregion
  }
}