using OpenTK.Mathematics;

namespace Yw.WinFrmUI.Hydro
{
    /// <summary>
    /// 三维点缓存辅助类
    /// </summary>
    internal class Vector3CacheHelper
    {
        /// <summary>
        /// 
        /// </summary>
        public Vector3CacheHelper(NetworkL3d nw)
        {
            _nw = nw;
            Initial();
        }

        private NetworkL3d _nw = null;
        private Dictionary<string, List<Vector3>> _dict = new();

        /// <summary>
        /// 是否初始化
        /// </summary>
        public bool Initialized
        {
            get
            {
                if (_nw == null)
                {
                    return false;
                }
                if (_dict.Count < 1)
                {
                    return false;
                }
                return true;
            }
        }

        //初始化
        private void Initial()
        {
            if (_nw == null)
            {
                return;
            }
            foreach (var visual in _nw.Visuals)
            {
                var pts = visual.GetPositions();
                var vpts = pts.Select(x => new Vector3(x.X, x.Y, x.Z)).ToList();
                _dict.Add(visual.Id, vpts);
            }
        }

        /// <summary>
        /// 获取所有
        /// </summary>
        /// <returns></returns>
        public List<Vector3> GetAll()
        {
            if (!Initialized)
            {
                return default;
            }
            return _dict.SelectMany(x => x.Value).Distinct().ToList();
        }

        /// <summary>
        /// 通过 Id 获取
        /// </summary>
        public List<Vector3> GetById(string Id)
        {
            if (string.IsNullOrEmpty(Id))
            {
                return default;
            }
            if (_dict.ContainsKey(Id))
            {
                return _dict[Id];
            }
            return default;
        }




    }
}