using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;

public class Slot : MonoBehaviour {
          private Stack<Item> items;
          public Text stackText;

          public Sprite slotEmpty;
          public Sprite slotActive;
          public bool isEmpty{
                  get{ return items.Count == 0;}
          }
          public bool IsAvailable{
                  get{ return CurrentItem.maxSize > items.Count;}
          }
          public Item CurrentItem{
                  get{ return items.Peek ();}
          }

          // Use this for initialization
          void Start () {
                  items = new Stack<Item> ();
                  RectTransform slotRect = GetComponent<RectTransform> ();
                  RectTransform textRect =  stackText.GetComponent<RectTransform> ();

                  int textScaleFactor = (int)(slotRect.sizeDelta.x*0.60);
                  stackText.resizeTextMaxSize = textScaleFactor;
                  stackText.resizeTextMinSize = textScaleFactor;
                  textRect.SetSizeWithCurrentAnchors (RectTransform.Axis.Horizontal, slotRect.sizeDelta.x);
                  textRect.SetSizeWithCurrentAnchors (RectTransform.Axis.Vertical, slotRect.sizeDelta.y);

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

          public void addItem(Item item){
                  items.Push (item);
                  if (items.Count > 1) {
                          stackText.text = items.Count.ToString();
                  }
                  ChangeSprite (item.spriteNeutral, item.spriteHighligheted);

          }
          private void ChangeSprite(Sprite notActive, Sprite onActive){
                  GetComponent<Image> ().sprite = notActive;
                  SpriteState st = new SpriteState ();
                  st.highlightedSprite = onActive;
                  st.pressedSprite = notActive ;

                  GetComponent<Button> ().spriteState = st;
          }
}