using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using KairoEngine.Core;

namespace KairoEngine.UI
{
    [RequireComponent(typeof(EventTrigger))]
    public class MouseInputUIBlocker : MonoBehaviour
    {
        public static bool BlockedByUI;
        private EventTrigger eventTrigger;

        private void Start()
        {
            eventTrigger = GetComponent<EventTrigger>();
            if (eventTrigger != null)
            {
                EventTrigger.Entry enterUIEntry = new EventTrigger.Entry();
                // Pointer Enter
                enterUIEntry.eventID = EventTriggerType.PointerEnter;
                enterUIEntry.callback.AddListener((eventData) => { EnterUI(); });
                eventTrigger.triggers.Add(enterUIEntry);

                //Pointer Exit
                EventTrigger.Entry exitUIEntry = new EventTrigger.Entry();
                exitUIEntry.eventID = EventTriggerType.PointerExit;
                exitUIEntry.callback.AddListener((eventData) => { ExitUI(); });
                eventTrigger.triggers.Add(exitUIEntry);
            }
            EventManager.request.Bind("IsPointerBlockedByUI", IsBlockedByUI);
        }

        private void OnDisable()
        {
            BlockedByUI = false;
        }

        public void EnterUI()
        {
            BlockedByUI = true;
        }
        public void ExitUI()
        {
            BlockedByUI = false;
        }
        public bool IsBlockedByUI() => BlockedByUI;

    }
}