using UnityEngine;
using UnityEngine.UI;

public class ActionUIHandler : MonoBehaviour
{
    #region Statication

    public static ActionUIHandler instance;

    private void Awake()
    {
        if (instance != null && instance != this)
        {
            Destroy(gameObject);
            return;
        }
        instance = this;
    }

    #endregion
    private PlayerEntity selectedEntity;
    private RangedWeapon possibleRanged;
    public bool opened;
    [Header("UI")]
    [SerializeField] private Vector3 offset;
    [SerializeField] private GameObject actionUI;
    [SerializeField] private Button moveButton;
    [SerializeField] private Button attackButton;
    [SerializeField] private Button reloadButton;
    //500 if statements in this script lol
    public void ShowUI(PlayerEntity target)
    {
        opened = true;
        possibleRanged = null;
        selectedEntity = target;
        transform.position = Input.mousePosition + offset;
        actionUI.SetActive(true);
        UpdateUI();
    }

    public void UpdateUI()
    {
        if (!selectedEntity.hasAttacked)
        {
            if (selectedEntity.currentWeapon.TryGetComponent(out RangedWeapon isRanged))
            {
                possibleRanged = isRanged;
            }
            if (!isRanged || !isRanged.fired)
            {
                reloadButton.gameObject.SetActive(false);
                attackButton.gameObject.SetActive(true);
            }
            else
            {
                reloadButton.gameObject.SetActive(true);
                attackButton.gameObject.SetActive(false);
            }
        }
        else
        {
            reloadButton.gameObject.SetActive(false);
            attackButton.gameObject.SetActive(false);
        }
        if (!selectedEntity.hasMoved || !selectedEntity.hasAttacked)
        {
            moveButton.gameObject.SetActive(true);
        }
        else
        {
            moveButton.gameObject.SetActive(false);
        }

        if (selectedEntity.hasAttacked && selectedEntity.hasMoved)
        {
            HideUI();
        }
    }
    public void HideUI()
    {
        opened = false;
        actionUI.SetActive(false);
    }

    public void ReloadGun()
    {
        possibleRanged.Reload();
        selectedEntity.hasAttacked = true;
        UpdateUI();
    }

    public void Attack()
    {
        selectedEntity.Attack();
        HideUI();
    }

    public void SkipTurn()
    {
        selectedEntity.SkipTurn();
        HideUI();
    }
    public void MoveEntity()
    {
        HideUI();
        PlayerEntityMovement.instance.SelectEntity(selectedEntity);
    }
}