using UnityEngine;

namespace Gley.UrbanSystem.Internal
{
    /// <summary>
    /// Store path finding waypoints.
    /// </summary>
    [System.Serializable]
    public class PathFindingWaypoint : IHeapItem<PathFindingWaypoint>
    {
        [SerializeField] private int[] _allowedAgents;
        [SerializeField] private int[] _neighbours;
        [SerializeField] private int[] _movementPenalty;
        [SerializeField] private Vector3 _worldPosition;
        [SerializeField] private int _listIndex;

        internal int[] Neighbours => _neighbours;
        internal int[] AllowedAgents => _allowedAgents;
        internal int[] MovementPenalty => _movementPenalty;
        internal Vector3 WorldPosition => _worldPosition;
        internal int ListIndex => _listIndex;


        internal int FCost
        {
            get
            {
                return GCost + HCost;
            }
        }

        internal int Parent { get; set; }
        internal int GCost { get; set; }
        internal int HCost { get; set; }
        public int HeapIndex { get; set; }


        public PathFindingWaypoint(int listIndex, Vector3 worldPosition, int gCost, int hCost, int parent, int[] neighbours, int[] movementPenalty, int[] allowedAgents)
        {
            _listIndex = listIndex;
            _worldPosition = worldPosition;
            _neighbours = neighbours;
            _movementPenalty = movementPenalty;
            _allowedAgents = allowedAgents;
            GCost = gCost;
            HCost = hCost;
            Parent = parent;
        }


        public int CompareTo(PathFindingWaypoint nodeToCompare)
        {
            int compare = FCost.CompareTo(nodeToCompare.FCost);
            if (compare == 0)
            {
                compare = HCost.CompareTo(nodeToCompare.HCost);
            }
            return -compare;
        }
    }
}