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

public class BulletManager : MonoBehaviour
{
    public Image[] bulletImages;
    public Sprite bulletSprite;
    public Sprite bulletHalfSprite;
    public Sprite emptyBulletSprite;
    //默认子弹数量
    public int defaultBulletCount = 15;
    private int bulletCount;

    public GameObject parent ;

    [SerializeField]
    [Tooltip("生成子弹不足提示的位置是否在是正中心")]
    bool bCenter = false;

    [SerializeField]
    [Tooltip("生成子弹不足提示的字体颜色")]
    Color bulletTipColor;
    //射击数
    private int numberOfShotsFired = 0;
    public int getBulletCount { 
        get {
            return bulletCount;
        }
    }
    void Awake()
    {
        if (BluetoothAim.ins && BluetoothAim.ins.isMainConnectToGunType().isGun && BluetoothAim.ins.isMainConnectToGunType().gunType == AimDeviceType.RifleM416)
        {
            //m416 连接蓝牙的情况下，设置默认子弹数量
            defaultBulletCount = 30;
        }

        numberOfShotsFired = 0;
        ResetBullets();
    }

    public void Update()
    {
        if (Input.GetKeyDown(KeyCode.Q))
        {
            if (bulletZero()) return;
            FireBullet();
        }
    }

    public void FireBullet()
    {
        if (bulletCount > 0)
        {
            bulletCount--;
            UpdateBullets();
            //记录射击的总数
            numberOfShotsFired++;
        }
    }

    public void ResetBullets()
    {
        bulletCount = defaultBulletCount;
        UpdateBullets();
    }

    //是否判断射击完使用
    public bool NumberOfShotsFired() {
        return numberOfShotsFired >= defaultBulletCount ? true : false;
    }

    public bool bulletZero(PlayerType playerType = PlayerType.FirstPlayer) {
        if (getBulletCount == 0) {

            if (SceneManager.GetActiveScene().name == "InfraredGameDouble")
            {
                Create(parent.transform, bCenter, bulletTipColor, false, playerType == PlayerType.FirstPlayer? - Screen.width / 4f : Screen.width / 4f);
            }
            else {
                Create(parent.transform, bCenter, bulletTipColor);
            }

            //暂时自动刷新,接入协议后修改效果
            //ResetBullets();
            return true;
        }
        return false;
    }
    /// <summary>
    /// 不需要自动删除
    /// </summary>
    /// <returns></returns>
    public bool bulletZeroNotDelete() {
        if (getBulletCount == 0)
        {
            //禁用自动删除
            Create(parent.transform, bCenter, bulletTipColor,true);
            return true;
        }
        return false;
    }
    /// <summary>
    /// 外部调用：手动删除所有 TipBulletNumber
    /// </summary>
    public static void RemoveBulletExternally()
    {
        for (int i = bulletNumber.Count - 1; i >= 0; i--)
        {
            if (bulletNumber[i] != null)
            {
                bulletNumber[i].Remove();
            }
        }
        bulletNumber.Clear();
    }

    private void UpdateBullets()
    {
        if (defaultBulletCount == 30)
        {
            int fullUnits = bulletCount / 2;
            bool hasHalf = bulletCount % 2 == 1;

            for (int i = 0; i < bulletImages.Length; i++)
            {
                if (i < fullUnits)
                {
                    bulletImages[i].sprite = bulletSprite;
                }
                else if (i == fullUnits && hasHalf)
                {
                    bulletImages[i].sprite = bulletHalfSprite;
                }
                else
                {
                    bulletImages[i].sprite = emptyBulletSprite;
                }
            }
        }
        else
        {
            // 原逻辑：每发子弹一格
            for (int i = 0; i < bulletImages.Length; i++)
            {
                if (i < bulletCount)
                {
                    bulletImages[i].sprite = bulletSprite;
                }
                else
                {
                    bulletImages[i].sprite = emptyBulletSprite;
                }
            }
        }
    }


    static List<TipBulletNumber> bulletNumber = new();
    public static void Create(Transform parentTran,bool centerPos,Color color, bool disableAutoDelete = false ,float posX = 0)
    {
        //清空对象
        //for (int i = bulletNumber.Count - 1; i >= 0; i--)
        //{
        //    Destroy(bulletNumber[i].gameObject);
        //    bulletNumber.RemoveAt(i);
        //}
        RemoveBulletExternally();

        GameObject o = Instantiate(Resources.Load<GameObject>("Common/TipBulletNumber"));
        // 重置Transform属性
        o.transform.SetParent(parentTran);
        TipBulletNumber tip = o.GetComponent<TipBulletNumber>();
        tip.SetOutTipColor(color);
        tip.SetDisableAutoDelete(disableAutoDelete); // 设置是否禁用自动删除
        bulletNumber.Add(tip);

        // 获取RectTransform组件
        RectTransform rectTransform = o.GetComponent<RectTransform>();

        // 设置相对于锚点的偏移位置
        if (centerPos)
        {
            rectTransform.anchorMin = new Vector2(0.5f, 0.5f);
            rectTransform.anchorMax = new Vector2(0.5f, 0.5f);
            //rectTransform.anchoredPosition = new Vector2(0, rectTransform.rect.height / 2);
            rectTransform.anchoredPosition = new Vector2(0, 0);
            rectTransform.localRotation = Quaternion.identity;
            rectTransform.localScale = Vector3.one;
        }
        else {
            float _posX = 0;
            RectTransform imageRect = o.transform.Find("Image").GetComponent<RectTransform>();
            // 强制刷新它的布局
            LayoutRebuilder.ForceRebuildLayoutImmediate(imageRect);
            float _childX = imageRect.rect.width; 
            if (posX > 0)
            {
                _posX = posX - _childX * 0.5f - 80;
            }
            else if(posX < 0) {
                _posX = -(Mathf.Abs(posX) - _childX * 0.5f - 80);
            }
            rectTransform.anchoredPosition = new Vector2(_posX, 120);
            rectTransform.localRotation = Quaternion.identity;
            rectTransform.localScale = Vector3.one;
        }
  
        //o.GetComponentInChildren<Text>().text = number.ToString($"f{CommonConfig.ringsPrecision}");
    }
}