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

namespace ET
{
    public enum WindowPos
    {
        None,
        Center,
        Left,
        Right,
    }
    public static class FUIHelper
    {
        public static GWindow asGWindow(this GObject gObject)
        {
            return gObject as GWindow;
        }
        public static GComponent Add3DUI(this GameObject self, string pkgName, string cName, Camera camera, int sortingOrder)
        {
            //UIPanel的生命周期将和yourGameObject保持一致。再次提醒，注意yourGameObject的layer。
            UIPanel panel = self.AddComponent<UIPanel>();
            panel.packageName = pkgName;
            panel.componentName = cName;

            //下面这是设置选项非必须，注意很多属性都要在container上设置，而不是UIPanel

            //设置renderMode的方式
            panel.container.renderMode = RenderMode.WorldSpace;

            //设置renderCamera的方式
            panel.container.renderCamera = camera;

            //设置fairyBatching的方式
            panel.container.fairyBatching = true;

            //设置sortingOrder的方式
            panel.SetSortingOrder(sortingOrder, true);

            //设置hitTestMode的方式
            panel.SetHitTestMode(HitTestMode.Default);

            //最后，创建出UI
            panel.CreateUI();

            return panel.ui;
        }
        public static void Left(this GObject self)
        {
            GComponent r;
            if (self.parent != null)
                r = self.parent;
            else
                r = self.root;

            self.SetXY(0, (int)((r.height - self.height) / 2), true);
        }
        public static void LRCenter(this GObject self)
        {
            GComponent r;
            if (self.parent != null)
                r = self.parent;
            else
                r = self.root;
            self.SetXY((int)((r.width - self.width) / 2), self.height, true);
        }
        public static void Right(this GObject self)
        {
            GComponent r;
            if (self.parent != null)
                r = self.parent;
            else
                r = self.root;

            self.SetXY(r.width - self.width, (int)((r.height - self.height) / 2), true);
        }
        public static async ETTask<FUI> Create(Scene scene, string uiType)
        {
            return await scene.GetComponent<FUIComponent>().Create(uiType);
        }
        public static async ETTask<FUI> Open(Scene scene, string uiType, WindowPos windowPos, Action<FUI> effcetAction = null)
        {
            FUI fui = await Create(scene, uiType);
            FUIWindowComponent window = fui.GetOrAddComponent<FUIWindowComponent>();
            if (window.IsShowing)
            {
                window.Hide();
                return fui;
            }
            window.Show();
            effcetAction?.Invoke(fui);
            switch (windowPos)
            {
                default:
                case WindowPos.None:
                    break;
                case WindowPos.Center:
                    window.Window.Center();
                    break;
                case WindowPos.Left:
                    window.Window.Left();
                    break;
                case WindowPos.Right:
                    window.Window.Right();
                    break;
            }
            return fui;
        }

        public static void CloseAllWindows()
        {
            //关闭所有UI
            foreach (FUI fui in FUIComponent.Instance.GetAll())
            {
                try
                {
                    FUIWindowComponent window = fui.GetComponent<FUIWindowComponent>();
                    if (window != null)
                    {
                        window.Hide();
                    }
                }
                catch (Exception e)
                {
                    Log.Error(e);
                }
            }
        }

        public static void HideWindow(this FUI self)
        {
            self.GetComponent<FUIWindowComponent>()?.Hide();
        }
        public static async ETTask<T> Open<T>(Scene scene, string uiType, WindowPos windowPos, Action<T> effcetAction = null) where T : FUI
        {
            FUI fui = await Create(scene, uiType);
            T t = fui.As<T>();
            FUIWindowComponent window = fui.GetOrAddComponent<FUIWindowComponent>();
            if (window.IsShowing)
            {
                window.Hide();
                return t;
            }
            window.Show();
            effcetAction?.Invoke(t);
            switch (windowPos)
            {
                case WindowPos.Center:
                    window.Window.Center();
                    break;
                case WindowPos.Left:
                    window.Window.Left();
                    break;
                case WindowPos.Right:
                    window.Window.Right();
                    break;
                default:
                    break;
            }
            return t;
        }
        public static async ETTask<TUI> Open<T, TUI>(Scene scene, string uiType, WindowPos windowPos, Action<T> effcetAction = null)
            where T : FUI
            where TUI : Entity, new()
        {
            FUI fui = await Create(scene, uiType);
            T t = fui.As<T>();
            FUIWindowComponent window = fui.GetOrAddComponent<FUIWindowComponent>();
            if (window.IsShowing)
            {
                window.Hide();
                return t.GetComponent<TUI>();
            }
            window.Show();
            effcetAction?.Invoke(t);
            switch (windowPos)
            {
                case WindowPos.Center:
                    window.Window.Center();
                    break;
                case WindowPos.Left:
                    window.Window.Left();
                    break;
                case WindowPos.Right:
                    window.Window.Right();
                    break;
                default:
                    break;
            }
            TUI tui = t.AddComponent<TUI>();
            window.Window.OnHideEvent += () =>
            {
                t.RemoveComponent<TUI>();
            };
            return tui;
        }

        public static void Remove(Scene scene, string uiType)
        {
            scene.GetComponent<FUIComponent>().Remove(uiType);
        }
    }
}