using AdventOfCode.Core.Shared.Grid;

namespace AdventOfCode.Core.Shared.A_Star
{
    public class AStarNode : Point
    {
        /// <summary>
        /// Distance from start node
        /// </summary>
        public long GCost { get; set; } = 0;

        /// <summary>
        /// Estaimated distance to end node
        /// </summary>
        public long HCost { get; set; }

        /// <summary>
        /// Total cost (G + F)
        /// </summary>
        public long FCost => GCost + HCost;

        public bool? IsClosed { get; private set; } = null;

        public AStarNode? ParentNode { get; set; }

        public AStarNode(Point position) : base(position) { }

        public AStarNode(int x, int y, char value) : base(x, y, value) { }

        public void OpenNode() => IsClosed = false;

        public void CloseNode() => IsClosed = true;

        public virtual bool CanMoveTo(AStarNode target) => true;
    }
}