namespace Yw.WpfUI.Hydro
{
    /// <summary>
    /// 简单状态管理器
    /// </summary>
    internal class VisualStateManager
    {

        //缓存
        private readonly Dictionary<VisualL3d, eVisualState> _cache = new();

        /// <summary>
        /// 初始化
        /// </summary>
        public void Initial(List<VisualL3d> allVisualList)
        {
            _cache.Clear();
            allVisualList?.ForEach(x => _cache.Add(x, eVisualState.Normal));
        }

        /// <summary>
        /// 设置
        /// </summary>
        public void SetState(VisualL3d visual, eVisualState state)
        {
            if (visual == null)
            {
                return;
            }
            _cache[visual] = state;
        }

        /// <summary>
        /// 加载状态
        /// </summary>
        public void LoadState(VisualL3d visual, eVisualState state)
        {
            var origin = GetState(visual);
            _cache[visual] = origin | state;
        }

        /// <summary>
        /// 卸载状态
        /// </summary>
        public void UnloadState(VisualL3d visual, eVisualState state)
        {
            var origin = GetState(visual);
            _cache[visual] = origin ^ state;
        }

        /// <summary>
        /// 获取状态
        /// </summary>
        public eVisualState GetState(VisualL3d visual)
        {
            if (visual == null)
            {
                return eVisualState.Normal;
            }
            if (!_cache.ContainsKey(visual))
            {
                return eVisualState.Normal;
            }
            return _cache[visual];
        }

        /// <summary>
        /// 获取有效状态
        /// </summary>
        public eVisualState GetEffectState(VisualL3d visual)
        {
            var state = GetState(visual);
            if (state == eVisualState.None)
            {
                return eVisualState.Normal;
            }
            if ((state & eVisualState.Highlight) == eVisualState.Highlight)
            {
                return eVisualState.Highlight;
            }
            if ((state & eVisualState.Selection) == eVisualState.Selection)
            {
                return eVisualState.Selection;
            }
            if ((state & eVisualState.Override) == eVisualState.Override)
            {
                return eVisualState.Override;
            }
            return eVisualState.Normal;
        }


    }
}