using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;

public class MinionBar : MonoBehaviour {

    List<GameObject> minionTypes;
    public GameObject minionIconPrefab;

    List<MinionIcon> minionIcons;
    int currentIndex;

    void Awake() {
        minionTypes = new List<GameObject>();
        minionIcons = new List<MinionIcon>();
    }

    // public void Start() {
    //     minionIcons = new List<MinionIcon>();
    //     for (int i=0; i<minionTypes.Count; ++i) {
    //         GameObject newIconObj = Instantiate(minionIconPrefab, transform);
    //         minionIcons.Add(newIconObj.GetComponent<MinionIcon>());
    //         // minionIcons[i].icon = minionTypes.icon; // TODO
    //         minionIcons[i].indexInMinionList = i;
    //         minionIcons[i].UnSelect();
    //     }
    //     minionIcons[currentIndex].Select();
    // }

    public void ChangeSelectedIcon(InputAction.CallbackContext context) {
        
        float floatDelta = context.ReadValue<float>();
        int delta = 0;
        if(floatDelta > 0.5f) {
            delta = 1;
        } else if(floatDelta < -0.5f) {
            delta = -1;
        }

        minionIcons[currentIndex].UnSelect();

        currentIndex += delta;
        if(currentIndex >= minionIcons.Count) {
            currentIndex = 0;
        } else if(currentIndex < 0) {
            currentIndex = minionIcons.Count - 1;
        }

        minionIcons[currentIndex].Select();
        // print("new selected minion type : " + currentIndex.ToString());
    }

    public void AddMinionType(GameObject newMinionPrefab) {
        minionTypes.Add(newMinionPrefab);
        MinionIcon newIcon = Instantiate(minionIconPrefab, transform).GetComponent<MinionIcon>();
        minionIcons.Add(newIcon);
        // minionIcons[i].icon = minionTypes.icon; // TODO
        newIcon.indexInMinionList = minionIcons.Count;
        if(currentIndex == minionIcons.Count - 1) {
            newIcon.Select();
        } else {
            newIcon.UnSelect();
        }
    }

    public GameObject GetCurrentMinion() {
        return minionTypes[currentIndex];
    }

}