/*
 * Copyright (c) 2005-2006 Erik Tigerholm <eriktigerholm@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
using System;
using System.Collections.Generic;
using System.Text;

namespace OpenTraffic.Model.Graph.Partioning
{
    public class MultiVertex<TV> : Vertex where TV : Vertex
    {
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
        public List<GraphEdge<MultiVertex<TV>>> Edges { get; private set; }
        public float Weight { get; private set; }

        private List<MultiVertex<TV>> nodes;

        public MultiVertex(TV v)
            : base(v.Id, v.Name, v.X, v.Y)
        {
            nodes = new List<MultiVertex<TV>>();
            this.Weight = 1;
            Edges = new List<GraphEdge<MultiVertex<TV>>>();
        }

        public void Join(MultiVertex<TV> mv)
        {
            if (mv != null)
            {
                nodes.Add(mv);
                Weight += mv.Weight;
                foreach (GraphEdge<MultiVertex<TV>> e in mv.Edges)
                {
                    Edges.Add(e);
                }
            }
        }

        public MultiVertex<TV> Reverse()
        {
            MultiVertex<TV> v1 = nodes[nodes.Count - 1];

            Weight -= v1.Weight;
            nodes.RemoveAt(nodes.Count - 1);

            return v1;
        }

        public override string ToString()
        {
            return "mVertx: " + Id + " #" + nodes.Count;
        }
    }
}