using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

public class EffectScreen : MonoBehaviour
{

    [SerializeField]
    private UnityEngine.Video.VideoPlayer mPlayer;
    private MeshRenderer mRender;
    private Color DefaultColor;
    private Color HideColor = new Color(0,0,0,1);
    void Awake()
    {
        mRender = this.gameObject.GetComponent<MeshRenderer>();
        DefaultColor = mRender.material.GetColor("_TintColor");
        this.mRender.material.SetColor("_TintColor", HideColor);
    }

    private void OnEnable()
    {

    }

    private UnityEngine.Video.VideoClip clip;
    private float duration = 0.3f;
    private float startTime;
    public void ChangeMoive(UnityEngine.Video.VideoClip clip)
    {
        this.mRender.enabled = true;
        startTime = Time.realtimeSinceStartup;
        this.clip = clip;//先拿到要换的片
        //渐进式的影藏掉原来的片
        StartCoroutine(CheckHide());
    }

    IEnumerator CheckHide()
    {
        yield return null;
        if (!mPlayer.isPlaying)
        {
            ClickFinish();
        }
        else
        {
            float per = 0;
            while (mRender.material.GetColor("_TintColor") != HideColor)
            {
                per += Time.deltaTime / duration;
                this.mRender.material.SetColor("_TintColor", Color.Lerp(DefaultColor, HideColor, per));
                //CDebug.Log("WaitForEndOfFrame " + (Time.realtimeSinceStartup - startTime));
                yield return new WaitForEndOfFrame();
            }
            //LeanTween.color(this.gameObject, DefaultColor, duration).setEase(LeanTweenType.animationCurve);
            ClickFinish();
        }
    }

    private void ClickFinish()
    {
        //CDebug.Log("ClickFinish "  + (Time.realtimeSinceStartup - startTime));
        mPlayer.Stop();
        if (this.clip == null)
        {
            return;
        }
        mPlayer.clip = this.clip;
        mPlayer.Play();
        StartCoroutine(CheckMovie());
    }

    IEnumerator CheckMovie()
    {
        yield return null;
        while(!mPlayer.isPlaying)
        {
            yield return new WaitForEndOfFrame();
        }
        float per = 0;
        while (mRender.material.GetColor("_TintColor") != DefaultColor)
        {
            per += Time.deltaTime / duration;
            this.mRender.material.SetColor("_TintColor", Color.Lerp(HideColor, DefaultColor, per));
            yield return new WaitForEndOfFrame();
        }
        //CDebug.Log("CheckMovie End " + (Time.realtimeSinceStartup - startTime));
    }
}