using FL.FGUI;
using System.Collections.Generic;
using XGame.Framework;
using XGame.Framework.Nodes;
using XGame.Framework.UI;

namespace FL.Nodes.GameMain
{
    public class UIComponent : NodeComponent
    {
        private Dictionary<UILayer, HashSet<UIKey>> _openKeysMap = new();

        public override void OnEnable(object intent)
        {
            FrameworkEvent.Instance.AddListener(XGame.Framework.EventDefine.UI_OPENED, OnUIOpened);
            FrameworkEvent.Instance.AddListener(XGame.Framework.EventDefine.UI_CLOSED, OnUIClosed);

            Context.UI.OpenAsync(UIKeys.MainHomePanel, "打开MainHomePanel");
            Context.UI.OpenAsync(UIKeys.MainHomeBottomPanel);

            Context.Tree.AddAsync(NodeKeys.Partners);
            Context.Tree.AddAsync(NodeKeys.DragonEgg);
            Context.Tree.AddAsync(NodeKeys.Mail);

            Context.Tree.Remove(NodeKeys.Login, true);
        }
        public override void OnDisable()
        {
            // 先移除监听事件
            FrameworkEvent.Instance.RemoveListener(XGame.Framework.EventDefine.UI_OPENED, OnUIOpened);
            FrameworkEvent.Instance.RemoveListener(XGame.Framework.EventDefine.UI_CLOSED, OnUIClosed);

            Context.UI.Close(UIKeys.MainHomePanel);
            Context.UI.Close(UIKeys.MainHomeBottomPanel);
            Context.UI.Close(UIKeys.CommonToastPanel);

            Context.Tree.Remove(NodeKeys.Partners);
            Context.Tree.Remove(NodeKeys.DragonEgg);
            Context.Tree.Remove(NodeKeys.Mail);

            _openKeysMap.Clear();
        }

        #region UILayer管理
        private void OnUIOpened(int eventId, object args)
        {
            var uikey = args as UIKey;
            if (uikey == UIKeys.MainHomeBottomPanel)
                return; // 主界面底部菜单固定显示，忽略
            var layer = UIKeys.GetLayer(uikey);
            if (IsFiltered(layer))
                return;
            if (!_openKeysMap.TryGetValue(layer, out var openKeys))
            {
                openKeys = new HashSet<UIKey>();
                _openKeysMap[layer] = openKeys;
            }
            openKeys.Add(uikey);

            // 打开Normal的UI，关闭所有Middle和High
            // 打开Middle的UI，关闭所有High
            if (layer is UILayer.Normal or UILayer.Middle)
            {
                CloseUIByLayer(UILayer.High);
            }
            if (layer is UILayer.Normal)
            {
                CloseUIByLayer(UILayer.Middle);
            }
        }
        private void OnUIClosed(int eventId, object args)
        {
            var uikey = args as UIKey;
            var layer = UIKeys.GetLayer(uikey);
            if (_openKeysMap.TryGetValue(layer, out var openKeys))
            {
                openKeys.Remove(uikey);
            }
        }


        /// <summary>
        /// 关闭指定Layer的所有UI
        /// </summary>
        /// <param name="layer"></param>
        private void CloseUIByLayer(UILayer layer)
        {
            if (_openKeysMap.TryGetValue(layer, out var openKeys) && openKeys.Count > 0)
            {
                var list = ListPool.Acquire<UIKey>();
                list.AddRange(openKeys);
                foreach (var item in list)
                {
                    Context.UI.Close(item);
                }
                ListPool.Recycle(list);
            }
        }
        private bool IsFiltered(UILayer layer)
        {
            return layer is UILayer.MapUI or UILayer.Toast or UILayer.Guide or UILayer.Effect;
        }
        #endregion
    }
}