//--------------------------------------------------------
//    [Author]:           第二世界
//    [  Date ]:           Tuesday, April 03, 2018
//--------------------------------------------------------

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using Spine.Unity;

namespace vnxbqy.UI
{

    public class LaunchBackGroundWin : Window
    {
        [SerializeField] RectTransform m_StaticBackGround;
        [SerializeField] Image m_BackGroundImage;
        [SerializeField] CanvasGroup m_CanvasGroup;
        [SerializeField] TextEx info;

        LoginModel loginModel { get { return ModelCenter.Instance.GetModel<LoginModel>(); } }
        #region Built-in
        protected override void BindController()
        {
        }

        protected override void AddListeners()
        {
        }

        protected override void OnPreOpen()
        {
            var sprite = BuiltInLoader.LoadSprite("LoginBackGround");
            m_BackGroundImage.overrideSprite = sprite;
            m_BackGroundImage.preserveAspect = true;
            m_StaticBackGround.SetActive(true);

            this.transform.SetAsFirstSibling();
            info.text = loginModel.loginErrorInfo;
            loginModel.loginErrorEvent += OnLoginError;
        }

        protected override void OnAfterOpen()
        {
        }

        protected override void OnPreClose()
        {
            loginModel.loginErrorEvent -= OnLoginError;
            loginModel.loginErrorInfo = string.Empty;
        }

        protected override void OnAfterClose()
        {
        }

        protected override void OnActived()
        {
            base.OnActived();
            StartCoroutine(Co_FadeIn());
        }

        public void FadeOut()
        {
            StartCoroutine(Co_FadeOut());
        }

        IEnumerator Co_FadeIn()
        {
            var timer = 0f;
            while (timer < 0.5f)
            {
                timer += Time.deltaTime;
                m_CanvasGroup.alpha = Mathf.Clamp01(timer * 2f);
                yield return null;
            }

            m_CanvasGroup.alpha = 1f;
        }

        IEnumerator Co_FadeOut()
        {
            var timer = 0f;
            while (timer < 0.5f)
            {
                timer += Time.deltaTime;
                m_CanvasGroup.alpha = Mathf.Clamp01(1 - timer * 2f);
                yield return null;
            }

            m_CanvasGroup.alpha = 0f;
            WindowCenter.Instance.Close<LaunchBackGroundWin>();
        }

        #endregion

        void OnLoginError()
        {
            info.text = loginModel.loginErrorInfo;
        }
    }

}