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

namespace SchematicDrawing
{
    public class GEdge
    {
        public readonly GNode StartNode;
        public readonly GNode EndNode;
        public readonly int DefaultDist;
        public readonly RouteCouple RouteCouple;

        public int Dist;

        public GEdge(GNode startNode, GNode endNode, int defaultDist, RouteCouple routeCouple)
        {
            StartNode = startNode;
            EndNode = endNode;
            DefaultDist = defaultDist;
            RouteCouple = routeCouple;

            Dist = (routeCouple == RouteCouple.None || routeCouple == RouteCouple.ClosedWhen1) ? DefaultDist : int.MaxValue;
        }

        public void UpdateFromRoute(bool routeBit)
        {
            switch (RouteCouple)
            {
                case RouteCouple.OpenWhen1:
                    Dist = routeBit ? DefaultDist : int.MaxValue; break;
                case RouteCouple.ClosedWhen1:
                    Dist = routeBit ? int.MaxValue : DefaultDist; break;
            }
        }

        public override string ToString()
        {
            return string.Format("{0}/{1}-{2}/{3} dist={4}", StartNode.Item.Name, StartNode.NodeId, EndNode.Item.Name, EndNode.NodeId, Dist);
        }
    }
}