using UnityEngine;
using System.Collections.Generic;
using System;
using FairyGUI;

namespace GFGGame
{
    /// <summary>
    /// 视图管理类
    /// 管理视图的显示、隐藏
    /// </summary>
    public class ViewManager
    {
        private static Dictionary<string, UIView> _viewDic;
        private static GComponent _bottomLayer;
        private static GComponent _topLayer;
        private static Dictionary<string, object[]> _goBackDatas = new Dictionary<string, object[]>();

        public static void Init()
        {
            GFGUIPackage.AddPackage(ResPathUtil.GetUIPackagePath("Common"));
            UIConfig.buttonSound = (NAudioClip)UIPackage.GetItemAsset("Common", "click");
            Font afont = GFGAsset.Load<Font>(ResPathUtil.GetFontPath("STZHONGS"));
            FontManager.RegisterFont(new DynamicFont("STZhongsong", afont));
            UIConfig.defaultFont = "STZhongsong";
            Font afont1 = GFGAsset.Load<Font>(ResPathUtil.GetFontPath("ZIHUN125"));
            FontManager.RegisterFont(new DynamicFont("ZIHUN125", afont1));
            _viewDic = new Dictionary<string, UIView>();
            //初始化视图层容器
            _bottomLayer = CreateLayer("BottomLayer");
            _topLayer = CreateLayer("TopLayer");
            _topLayer.sortingOrder = ConstSortingOrder.TOP;
        }

        public static void AddChildToBottomLayer(GObject gObject)
        {
            _bottomLayer.AddChild(gObject);
        }

        public static void AddChildToTopLayer(GObject gObject)
        {
            _topLayer.AddChild(gObject);
        }

        /// <summary>
        /// 显示一个视图
        /// </summary>
        /// <param name="viewName">要显示的视图名称</param>
        /// <param name="viewData">要传递给视图的参数</param>
        /// <param name="goBackParams">从该视图返回的视图信息</param>
        /// <param name="hideOthers">是否关闭其他视图</param>
        public static void Show(string viewName, object viewData = null, object[] goBackParams = null, bool hideOthers = false, bool resetGobackParams = false)
        {
            if (!FunctionOpenDataManager.Instance.CheckIsFunOpenBgViewName(viewName))
            {
                return;
            }
            if (hideOthers)
            {
                HideAllView(viewName);
            }
            UIView obj = null;

            if (_viewDic.ContainsKey(viewName))
            {
                obj = _viewDic[viewName];
            }
            else
            {
                obj = CreateViewInstance(viewName) as UIView;
                _viewDic.Add(viewName, obj);
            }
            if (obj != null)
            {
                IUIView view = (IUIView)obj;
                view.viewData = viewData;
                if (!view.isShowing)
                {
                    view.Show();
                    Debug.Log("当前打开：" + viewName);
                }
                else
                {
                    view.Refresh();
                }
                if (resetGobackParams)
                {
                    if (_goBackDatas.ContainsKey(viewName) == true)
                    {
                        _goBackDatas.Remove(viewName);
                    }
                }
                if (goBackParams != null)
                {
                    _goBackDatas[viewName] = goBackParams;
                }
                // else 
            }

        }

        public static bool Show<T>(object viewData = null, object[] goBackParams = null, bool hideOthers = false, bool resetGobackParams = false) where T : class, new()
        {
            string viewName = typeof(T).FullName;
            if (!FunctionOpenDataManager.Instance.CheckIsFunOpenBgViewName(viewName))
            {
                return false;
            }
            if (hideOthers)
            {
                HideAllView(viewName);
            }
            UIView obj = null;
            if (_viewDic.ContainsKey(viewName))
            {
                obj = _viewDic[viewName];
            }
            else
            {
                obj = new T() as UIView;
                _viewDic.Add(viewName, obj);
            }
            if (obj != null)
            {
                IUIView view = (IUIView)obj;
                view.viewData = viewData;
                if (!view.isShowing)
                {
                    view.Show();
                    Debug.Log("当前打开：" + viewName);
                }
                else
                {
                    view.Refresh();
                }
                if (goBackParams != null)
                {
                    _goBackDatas[viewName] = goBackParams;
                }
                else if (resetGobackParams)
                {
                    if (_goBackDatas.ContainsKey(viewName) == true)
                    {
                        _goBackDatas.Remove(viewName);
                    }
                }
            }
            return true;
        }

        public static void Hide(string viewName)
        {
            if (!_viewDic.ContainsKey(viewName))
            {
                return;
            }
            UIView obj = _viewDic[viewName];
            if (obj != null && obj.isShowing)
            {
                IUIView view = (IUIView)obj;
                view.Hide();
            }
        }

        public static void Hide<T>()
        {
            string viewName = typeof(T).FullName;
            if (!_viewDic.ContainsKey(viewName))
            {
                return;
            }
            object obj = _viewDic[viewName];
            if (obj != null)
            {
                IUIView view = (IUIView)obj;
                view.Hide();
            }
        }

        public static void GoBackFrom(string viewName, bool clearGoBackDatas = false)
        {
            ViewManager.Hide(viewName);
            if (_goBackDatas.ContainsKey(viewName))
            {
                object[] gobackItems = _goBackDatas[viewName];
                string tViewName = gobackItems[0] as string;

                object tViewData = null;
                if (gobackItems.Length > 1)
                {
                    tViewData = gobackItems[1];
                }

                ViewManager.Show(tViewName, tViewData);
            }
        }

        public static object[] GetGoBackDatas(string viewName)
        {
            object[] value;
            _goBackDatas.TryGetValue(viewName, out value);
            return value;
        }
        public static void HideAllView(string excludeViewName = null)
        {
            foreach (string viewName in _viewDic.Keys)
            {
                if (viewName != excludeViewName)
                {
                    Hide(viewName);
                }
            }
        }

        private static object CreateViewInstance(string name)
        {
            // Debug.LogFormat("CreateViewInstance {0}", name);
            Type type = Type.GetType(name);
            if (type != null)
            {
                return Activator.CreateInstance(type);
            }
            return null;
        }

        private static GComponent CreateLayer(string name)
        {
            GComponent layer = new GComponent();
            layer.name = name;
            GRoot.inst.AddChild(layer);
            layer.SetSize(GRoot.inst.size.x, GRoot.inst.size.y);
            layer.AddRelation(GRoot.inst, RelationType.Size);
            return layer;
        }

    }
}