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

public class UITooltips : MonoBehaviour
{
    // Not optimal but gamejam momento

    [SerializeField] private GameObject tooltip;
    [SerializeField] private EventTrigger ExtraExitCollider;
    private EventTrigger uiEvents;

    public int ButtonIndex = -1;

    /// <summary>
    /// First param is buy index
    /// </summary>
    public event Action<int> OnClick;

    private void OnEnable()
    {
        uiEvents = GetComponent<EventTrigger>();

        // Subscribe to PointerEnter event
        EventTrigger.Entry pointerEnter = new EventTrigger.Entry();
        pointerEnter.eventID = EventTriggerType.PointerEnter;
        pointerEnter.callback.AddListener((data) => { OnEnter((PointerEventData)data); });
        uiEvents.triggers.Add(pointerEnter);

        // Subscribe to PointerEnter event
        EventTrigger.Entry ExtraExitEnter = new EventTrigger.Entry();
        ExtraExitEnter.eventID = EventTriggerType.PointerEnter;
        ExtraExitEnter.callback.AddListener((data) => { OnExit((PointerEventData)data); });
        ExtraExitCollider.triggers.Add(ExtraExitEnter);

        // Subscribe to PointerExit event
        EventTrigger.Entry pointerExit = new EventTrigger.Entry();
        pointerExit.eventID = EventTriggerType.PointerExit;
        pointerExit.callback.AddListener((data) => { OnExit((PointerEventData)data); });
        uiEvents.triggers.Add(pointerExit);

        // Subscribe to PointerClick event
        EventTrigger.Entry pointerClick = new EventTrigger.Entry();
        pointerClick.eventID = EventTriggerType.PointerClick;
        pointerClick.callback.AddListener((data) => { m_OnClick((PointerEventData)data); });
        uiEvents.triggers.Add(pointerClick);
    }

    private void OnEnter(PointerEventData eventData)
    {
        tooltip.SetActive(true);
    }

    private void OnExit(PointerEventData eventData)
    {
        tooltip.SetActive(false);
    }

    private void m_OnClick(PointerEventData data)
    {
        OnClick?.Invoke(ButtonIndex);
    }
}