using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using DG.Tweening;

public class EquipmentItemEvents : Selectable, IPointerDownHandler, IPointerUpHandler, IDragHandler, IPointerExitHandler
{
    private int slotId;
    Vector3 original;

    protected override void Start()
    {
        base.Start();
        original = gameObject.transform.position;
        slotId = int.Parse(gameObject.name.Substring(15));
    }

    public override void OnSelect(BaseEventData eventData)
    {
        base.OnSelect(eventData);
    }

    public override void OnDeselect(BaseEventData eventData)
    {
        base.OnDeselect(eventData);
        OnExit();
    }

    public override void OnPointerEnter(PointerEventData eventData)
    {
        base.OnPointerEnter(eventData);

        transform.DOScale(Vector3.one * 1.15f, 0.1f).SetEase(Ease.InSine).SetUpdate(true);
    }

    public override void OnPointerExit(PointerEventData eventData)
    {
        base.OnPointerExit(eventData);
        OnExit();
    }

    private void OnExit()
    {
        if (EventSystem.current.currentSelectedGameObject != null)
            EventSystem.current.SetSelectedGameObject(null);

        transform.DOScale(Vector3.one, 0.1f).SetEase(Ease.OutSine).SetUpdate(true);
    }

    public override void OnPointerDown(PointerEventData eventData)
    {
        base.OnPointerDown(eventData);
        OnClick();
    }

    public void OnClick()
    {
        if (InventoryManager.Instance.equipmentItems[slotId] == -1)
            return;
        //Debug.Log(this.gameObject.name + " Was Clicked.");
        gameObject.GetComponent<Image>().color = new Color(0.8f, 0.8f, 0.8f);
    }

    public override void OnPointerUp(PointerEventData eventData)
    {
        base.OnPointerUp(eventData);
        OnClickUp();
    }

    public void OnClickUp()
    {
        if (InventoryManager.Instance.equipmentItems[slotId] == -1)
            return;
        gameObject.GetComponent<Image>().color = Color.white;
        if (Vector3.Distance(transform.position, original) > 3)
        {

        }
        else
        {
            if (InventoryManager.Instance.equipmentItems[slotId] != -1)
            {
                PacketManager.sendUnequipItem(slotId);
            }

        }
        gameObject.transform.position = original;
    }

    public void OnDrag(PointerEventData eventData)
    {

        //if (InventoryManager.Instance.inventoryItems[slotId] == -1)
        //	return;
        //transform.position += (Vector3)eventData.delta;
    }
}