using System;
using UnityEngine;
using UnityEngine.UI;

public class UIBar : MonoBehaviour
{
    [SerializeField] private BarType _type;
    
    private GameObject _icon;
    private Image _valueBar;
    private GameObject _barText;
    
    private TMPro.TextMeshProUGUI _currentText;//= _barText.transform.Find("CurrentText").GetComponent<TMPro.TextMeshProUGUI>();
    private TMPro.TextMeshProUGUI _maxText;// = _barText.transform.Find("MaxText").GetComponent<TMPro.TextMeshProUGUI>();
    private TMPro.TextMeshProUGUI _iconText;
    

    private bool _onIcon;

    public bool OnIcon
    {
        get => _onIcon;
        set
        {
            _onIcon = value;
            if (_icon != null)
                _icon.SetActive(_onIcon);
        }
    }

    private bool _onText;
    public bool OnText
    {
        get => _onText;
        set
        {
            _onText = value;
            if (_barText != null)
                _barText.SetActive(_onText);
        }
    }
    
    private Action<string, float, float> _onUpdateAction;
    
    enum BarType
    {
        Exp,
        Health,
        Mana,
        Stamina
    }

    
    private void Awake()
    {
        _valueBar = transform.Find("Stack/ImageStack/ValueBar").GetComponent<Image>();

        _icon = transform.Find("Stack/Icon").gameObject;
        if (_icon != null)
            _iconText = _icon.transform.Find("BackGround/Text").GetComponent<TMPro.TextMeshProUGUI>();

        _barText = transform.Find("BarText").gameObject;
        if (_barText != null)
        {
            _currentText = _barText.transform.Find("CurrentText").GetComponent<TMPro.TextMeshProUGUI>();
            _maxText = _barText.transform.Find("MaxText").GetComponent<TMPro.TextMeshProUGUI>();
        }

        RectTransform fillRect = _valueBar.rectTransform;
        fillRect.anchorMax = new Vector2(0, 1);
    }
    
    
    private void OnEnable()
    {
        switch (_type)
        {
            case BarType.Exp:
                EventBus.Subscribe<PlayerExpEvent>(OnExpChanged);
                break;
            case BarType.Health:
                break;
            case BarType.Mana:
                break;
            case BarType.Stamina:
                break;
        }
    }
    
    private void OnDisable()
    {
        switch (_type)
        {
            case BarType.Exp:
                EventBus.Unsubscribe<PlayerExpEvent>(OnExpChanged);
                break;
            case BarType.Health:
                break;
            case BarType.Mana:
                break;
            case BarType.Stamina:
                break;
        }
    }



    private void OnExpChanged(PlayerExpEvent ev)
    {
        UpdateIconValue(ev.Level);
        UpdateBarState(ev.CurrentExp, ev.MaxExp);
    }



    public void SwitchObject(bool onIcon, bool onText)
    {
        OnIcon = onIcon;
        OnText = onText; 
    }

    public void ChangeBar()
    {
        // 추후 바 타입에 따른 아이콘 및 색상 변경 구현
    }

    private void UpdateIconValue(string value)
    {
        if (_icon == null) return;
        if (OnIcon) _iconText.text = value;
    }
    
    private void UpdateBarState(float current, float max)
    {
        if (_valueBar == null) return;
        if (OnText)
        {
            if (_currentText != null) _currentText.text = ((int)current).ToString();
            if (_maxText != null) _maxText.text = ((int)max).ToString();
        }

        float ratio = (max > 0) ? current / max : 0f;
        RectTransform fillRect = _valueBar.rectTransform;
        fillRect.anchorMax = new Vector2(ratio, 1);
    }
    
    

}