using System;
using DanielLochner.Assets.SimpleScrollSnap;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Beyond
{
    public class PanelSwitcher : MonoBehaviour
    {
        public SimpleScrollSnap snap;
        private int latestPanelIndex = 0;

        private delegate void EnableCallback(int index);

        private Action enableCallback;

        private void OnEnable()
        {
            enableCallback?.Invoke();
            enableCallback = null;
        }

        public void SwapToNextPanel()
        {
            snap.GoToNextPanel();
        }

        public void SwapToLastPanel()
        {
            latestPanelIndex = snap.CurrentPanel;
            snap.GoToPanel(snap.Panels.Length - 1);
        }

        public void GoBackToLatestPanel()
        {
            snap.GoToPanel(latestPanelIndex);
        }

        public void SetPanelToIndex(int index)
        {
            if (gameObject.activeInHierarchy)
            {
                snap.GoToPanel(index);
            }
            else
            {
                enableCallback += () => snap.GoToPanel(index);
            }
        }
    }
}