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

public class ShopMenuItemController : MonoBehaviour, IPointerClickHandler {
    [SerializeField] public TextMeshProUGUI itemNameText;
    [SerializeField] public TextMeshProUGUI itemDescriptionText;
    [SerializeField] public TextMeshProUGUI priceText;
    [SerializeField] public InventorySlotController shopItemSlot;

    private PlayerMovement playerMovement;

    private GameAudioController gameAudioController;

    Item item;
    int price;

    public bool Purchase() {
        Item tempItem = item;
        if (State.state.inventory.money >= price) {
            if (State.state.inventory.GainItem(tempItem) == 0) {
                Debug.Log("Successfully purchased " + item.data.name);
                State.state.inventory.money -= price;
                // TODO: Update inventory UI if present in shop
                return true;
            } else {
                Debug.Log("Failed purchase, no inventory space!");
            }
        } else {
            Debug.Log("Failed purchase, not enough money!");
        }
        return false;
    }

    public void OnPointerClick(PointerEventData eventData) {
        if (eventData.button.Equals(PointerEventData.InputButton.Left)) {
            if (Purchase()) {
                gameAudioController.audioSource.PlayOneShot(
                    gameAudioController.UI_Shop_Purchase);
                playerMovement.cutscene = false;
                Destroy(GameObject.FindGameObjectWithTag("ShopPanel"));
            } else {
                gameAudioController.audioSource.PlayOneShot(
                    gameAudioController.UI_Shop_PurchaseFail);
                // TODO: Add Close button and remove this crap.
                playerMovement.cutscene = false;
                Destroy(GameObject.FindGameObjectWithTag("ShopPanel"));
            }
        }
    }

    public void Setup(Item item, int price) {
        this.item = item;
        this.price = price;
        itemNameText.text = item.data.name;
        itemDescriptionText.text = item.data.description;
        shopItemSlot.Refresh(item);
        priceText.text = price.ToString() + "G";
    }

    void Awake() {
        playerMovement = GameObject.FindGameObjectWithTag("Player").GetComponent<PlayerMovement>();
        gameAudioController = GameObject.FindGameObjectWithTag("GameAudio")
            .GetComponent<GameAudioController>();
    }

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}