using Base;
using System;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace UI
{
    public class ItemUI : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler, ITick
    {
        [SerializeField] private Image textureUI;
        [SerializeField] private TMP_Text countUI;
        [SerializeField] private TMP_Text nameUI;
        [SerializeField] private GameObject selectedOutline;

        private Entity.InventorySlot _item;
        private float timer = 0;
        private float switchTime = 0;
        private int texturePtr = 0;

        public event Action OnPlayerSelect;

        public bool Select
        {
            get => selectedOutline.activeSelf;
            set => selectedOutline.SetActive(value);
        }

        public int SlotIndex { get; private set; } = -1;

        public void Init(Entity.InventorySlot item, int index)
        {
            if (item == null)
            {
                switchTime = -1;
                textureUI.gameObject.SetActive(false);
                countUI.text = "";
                nameUI.text = "";
                return;
            }

            textureUI.gameObject.SetActive(true);
            _item = item;
            textureUI.sprite = item.Item.Icon[0];
            countUI.text = item.Quantity.ToString();
            nameUI.text = item.Item.Name;
            nameUI.gameObject.SetActive(false);
            Select = false;
            SlotIndex = index;
            if (item.Item.FPS > 0)
            {
                switchTime = 1f / item.Item.FPS;
            }
            else
            {
                switchTime = 0;
            }
        }

        public void OnPointerEnter(PointerEventData eventData)
        {
            nameUI.gameObject.SetActive(true);
        }

        public void OnPointerExit(PointerEventData eventData)
        {
            nameUI.gameObject.SetActive(false);
        }
        public void OnPointerClick(PointerEventData eventData)
        {
            OnPlayerSelect?.Invoke();
        }
        public void Tick()
        {
            if (switchTime > 0)
            {
                timer += Time.deltaTime;
                if (timer >= switchTime)
                {
                    timer -= switchTime;
                    texturePtr++;
                    texturePtr %= _item.Item.Icon.Count;
                    textureUI.sprite = _item.Item.Icon[texturePtr];
                }
            }
        }


    }
}