using System;
using UnityEngine;
using UnityEngine.Serialization;
using UnityEngine.UI;

namespace TyphoonUI
{
    /// <summary>
    /// UI页面
    /// </summary>
    public abstract class UIPanel : UIComponent
    {
        /// <summary>
        /// 根视图
        /// </summary>
        public CanvasGroup RootView;

        /// <summary>
        /// 面板脚本名
        /// </summary>
        public string PanelScript { get; set; }

        /// <summary>
        /// 是否激活
        /// </summary>
        public bool IsShow = false;

        /// <summary>
        /// 打开页面传递的数据
        /// </summary>
        public object DataOpen = null;

        /// <summary>
        /// 关闭页面传递的数据
        /// </summary>
        public object DataClose = null;

        /// <summary>
        /// 触发多语言变化
        /// </summary>
        public bool TriggerLanguage { get; set; } = true;

        internal override void Attach(UIObject view)
        {
            RootView = view.gameObject.GetComponent<CanvasGroup>();
            if (RootView == null)
            {
                RootView = view.gameObject.AddComponent<CanvasGroup>();
            }

            //TODO//
            base.Attach(view);
        }

        /// <summary>
        /// 打开面板
        /// </summary>
        /// <param name="data">传入的数据</param>
        public virtual void Open(object data = null)
        {
            if (IsShow)
            {
                return;
            }

            DataOpen = data;
            IsShow = true;
            BeforeShow();
            UpdateStaticLocalizeInfo();
            OnShowing();
            AfterShow();
            OnShowDone();
            //触发弹窗队列
            // UIManager.OperationQueue.Enqueue(BeforeShow).Enqueue(OnShowing).Enqueue(AfterShow).Enqueue(OnShowDone)
            //     .Run();
        }

        /// <summary>
        /// 关闭面板
        /// </summary>
        /// <param name="data">传入的数据</param>
        public virtual void Close(object data = null)
        {
            if (!IsShow)
            {
                return;
            }

            DataClose = data;
            IsShow = false;
            BeforeHide();
            OnHiding();
            AfterHide();
            OnHideDone();
            // //触发关闭队列
            // UIManager.OperationQueue.Enqueue(BeforeHide).Enqueue(OnHiding).Enqueue(AfterHide).Enqueue(OnHideDone)
            //     .Run();
        }

        /// <summary>
        /// 尝试更新静态文本
        /// </summary>
        private void UpdateStaticLocalizeInfo()
        {
            if (TriggerLanguage)
            {
                LoadStaticLocalizeInfo();
                TriggerLanguage = false;
            }
        }

        /// <summary>
        /// 加载静态本地化信息
        /// </summary>
        protected virtual void LoadStaticLocalizeInfo()
        {
        }

        /// <summary>
        /// 多语言发生变化时
        /// </summary>
        internal virtual void OnLanguageChanged()
        {
            TriggerLanguage = true;
        }

        /// <summary>
        /// 展示前
        /// </summary>
        protected virtual void BeforeShow()
        {
        }

        /// <summary>
        /// 展示中
        /// </summary>
        protected virtual void OnShowing()
        {
            RootView.alpha = 1;
            RootView.blocksRaycasts = true;
        }

        /// <summary>
        /// 显示后
        /// </summary>
        protected virtual void AfterShow()
        {
        }

        /// <summary>
        /// 显示完毕
        /// </summary>
        protected virtual void OnShowDone()
        {
        }

        /// <summary>
        /// 隐藏前
        /// </summary>
        protected virtual void BeforeHide()
        {
        }

        /// <summary>
        /// 隐藏中
        /// </summary>
        protected virtual void OnHiding()
        {
            RootView.alpha = 0;
            RootView.blocksRaycasts = false;
        }

        /// <summary>
        /// 隐藏后
        /// </summary>
        protected virtual void AfterHide()
        {
        }

        /// <summary>
        /// 隐藏完毕
        /// </summary>
        protected virtual void OnHideDone()
        {
            //TODO//触发消息，页面关闭
        }

        /// <summary>
        /// 销毁
        /// </summary>
        public virtual void Destroy()
        {
            UIManger.DestroyPanel(PanelScript);
        }

        /// <summary>
        /// 按钮点击事件
        /// </summary>
        protected virtual void OnBtnClick(Button btn)
        {
        }

      
    }
}