using System.Collections;
using System.Collections.Generic;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.UI;

public class TutorialManager : MonoBehaviour
{
    public static bool justRegistered;
    public static TutorialManager instance;
    public TutorialScreen[] firstTutorial;
    public GameObject[] itemsToDisableWhileInTuto;
    public Button btn_skip;
    void Awake()
    {
        instance = this;
    }

    void Start(){
        btn_skip.onClick.AddListener(OnSkip);

        justRegistered= true; //for testing purpose
        if(justRegistered){
            StartSequence(firstTutorial);
        }
    }


    async void StartSequence(TutorialScreen[] list){
        skipped=false;
        btn_skip.gameObject.SetActive(true);
        foreach(GameObject item in itemsToDisableWhileInTuto){
            item.SetActive(false);
        }
        foreach(TutorialScreen screen in list){
            screen.Hide();
        }
        for(int i=0; i < list.Length; i++){
            nextClicked = false;
            await Task.Delay(list[i].delayBeforeAppear);
            list[i].Show();

            while(!nextClicked && !skipped){
                await Task.Delay(500);
            }
            list[i].Hide();

            if(skipped){
                break;
            }
        }
        foreach(GameObject item in itemsToDisableWhileInTuto){
            item.SetActive(true);
        }
        btn_skip.gameObject.SetActive(false);
    }
    bool nextClicked= false;
    bool skipped = false;

    public static void NextClicked(){
        instance.nextClicked = true;
    }

    void OnSkip(){
        skipped=true;
    }
}