///
/// Copyright (c) 2020 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;

namespace SchematicDrawing
{
    public class GNode
    {
        /// Graph node properties
        public IDrawingItem Item;
        public int NodeId;
        public readonly IList<GEdge> Edges;

        /// Distance from a start node
        public int Dist;

        /// Minimal heap index
        public int HeapIx;

        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="item">Item</param>
        /// <param name="nodeId"Node ID></param>
        public GNode(IDrawingItem item, int nodeId)
        {
            Item = item;
            NodeId = nodeId;
            Edges = new List<GEdge>();
            Dist = int.MaxValue;
        }

        public void AddEdge(GEdge edge)
        {
            Edges.Add(edge);
        }

        public GNode Reset(int heapIx, int dist = int.MaxValue)
        {
            HeapIx = heapIx;
            Dist = dist;
            return this;
        }

        public override string ToString()
        {
            return string.Format("{0}/{1} dist={2}", Item.Name, NodeId, Dist);
        }
    }
}