using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Video;

public class Tutorial : MonoBehaviour
{

    //Raw Image to Show Video Images [Assign from the Editor]
    public RawImage image;
    
    public VideoClip count_tut;
    public VideoClip set_tut;
    public VideoClip add_tut;

    private VideoPlayer vp;
    private VideoSource videoSource;

    //Audio
    private AudioSource audioSource;


    // Update is called once per frame
    private void Start() {
        
        StartCoroutine(playTutorial());

    }

    IEnumerator playTutorial()
    {
        //Add VideoPlayer to the GameObject
        vp = gameObject.AddComponent<VideoPlayer>();

        //Add AudioSource
        audioSource = gameObject.AddComponent<AudioSource>();

        //Disable Play on Awake for both Video and Audio
        vp.playOnAwake = false;
        audioSource.playOnAwake = false;

        vp.source = VideoSource.VideoClip;

        vp.audioOutputMode = VideoAudioOutputMode.AudioSource;
        //Assign the Audio from Video to AudioSource to be played
        vp.EnableAudioTrack(0, true);
        vp.SetTargetAudioSource(0, audioSource);

        //We want to play from video clip not from url
        vp.clip = count_tut;
        
        if (Gamestate.Instance.getGame() == "Set") {
            vp.clip = set_tut;
        }

        if (Gamestate.Instance.getGame() == "Add") {
            vp.clip = add_tut;
        }        

        //Set video To Play then prepare Audio to prevent Buffering
        vp.Prepare();

        //Wait until video is prepared
        while (!vp.isPrepared)
        {
            Debug.Log("Preparing Video");
            yield return null;
        }

        Debug.Log("Done Preparing Video");

        //Assign the Texture from Video to RawImage to be displayed
        image.texture = vp.texture;

        //Play Video
        vp.Play();

        //Play Sound
        audioSource.Play();

        Debug.Log("Playing Video");
        while (vp.isPlaying)
        {
            Debug.LogWarning("Video Time: " + Mathf.FloorToInt((float)vp.time));
            yield return null;
        }

        
        image.GetComponent<Animator>().SetBool("fadeout",true);//.Play("tutorial2", -1, 0f);
        
        yield return new WaitForSeconds(0.8f);
        Debug.Log("Done Playing Video");
        
        DontDestroyOnLoad(Gamestate.Instance);
        Gamestate.Instance.startGame();
    }

}