using GameCore;
using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;
using UnityEngine;

public class ConvertTools
{
    public static string ConvertTime2(int d, int h, int m, int s)
    {
        string str = "";
        int showCount = 0;
        int maxShowCount = 2;
        if (d > 0)
        {
            showCount++;
            str = $"{d}d ";
        }
        if (h > 0)
        {
            showCount++;
            str += $"{h}h ";
        }

        if (showCount >= maxShowCount)
        {
            return str;
        }
        else if (m > 0)
        {
            showCount++;
            str += $"{m}m ";
        }

        if (showCount >= maxShowCount)
        {
            return str;
        }
        else if (s > 0)
        {
            str += $"{s}s ";
        }
        return str;
    }
    public static string ConvertTime2(TimeSpan timer)
    {
        return ConvertTime2(timer.Days, timer.Hours, timer.Minutes, timer.Seconds);
    }

    /// <summary>
    /// Only One Number, negative time will be considered as 0.
    /// </summary>
    /// <param name="timer"></param>
    /// <returns></returns>
    public static string ConvertTime3(TimeSpan timer)
    {
        if (timer.Days > 0)
        {
            return $"{timer.Days}d ";
        }
        if (timer.Hours > 0)
        {
            return $"{timer.Hours}h ";
        }
        if (timer.Minutes > 0)
        {
            return $"{timer.Minutes}m ";
        }

        if (timer.Seconds > 0)
        {
            return $"{timer.Seconds}s ";
        }
        return "0s ";
    }
    /// <summary>
    /// hh:mm:ss
    /// </summary>
    /// <param name="timer"></param>
    /// <returns></returns>
    public static string ConvertTime(TimeSpan timer)
    {
        return timer.ToString(@"hh\:mm\:ss");
    }

    public static string ConvertTime4(TimeSpan timer)
    {
        return timer.Hours > 0 ? ConvertTime(timer) : timer.ToString(@"mm\:ss");
    }


    public static DateTime GetDateTimeYMD(DateTime date)
    {
        return new DateTime(date.Year, date.Month, date.Day);
    }

    public static DateTime GetDateTimeSunDay(DateTime date)
    {
        var dayOfWeek = (int)date.DayOfWeek;
        int offset = 7 - (dayOfWeek == 0 ? 7 : dayOfWeek);

        return GetDateTimeYMD(date.AddDays(Mathf.Abs(offset)));

    }

    /// <summary>
    /// ("#,##0.#")
    /// </summary>
    /// <param name="num"></param>
    /// <returns></returns>
    public static string GetNumberString(ulong num, bool keep = false)
    {
        string format = keep ? "#,##0.0" : "#,##0.#";
        string str;
        if (num < 1000)
        {
            str = num.ToString("#,##0");
        }
        else if (num < 1000000)
        {
            float fnum = Mathf.Floor(num / 100f) / 10;
            str = fnum.ToString(format) + "K";
        }
        else if (num < 1000000000)
        {
            float fnum = Mathf.Floor(num / 100000f) / 10;
            str = fnum.ToString(format) + "M";
        }
        else
        {
            float fnum = Mathf.Floor(num / 100000000f) / 10;
            str = fnum.ToString(format) + "G";
        }

        return str;
    }


    public static int KeepThreeSignificantDigits(int value)
    {
        if (value <= 0) return 0;

        int digits = (int)Math.Floor(Math.Log10(value)) + 1;

        if (digits <= 3)
            return value;

        int digitsToRemove = digits - 3;
        int factor = (int)Math.Pow(10, digitsToRemove);
        int rounded = value / factor * factor;

        return rounded;
    }

    /// <summary>
    /// ("#,##0.#")
    /// </summary>
    /// <param name="num"></param>
    /// <returns></returns>
    public static string GetNumberString(int num, bool keep = false)
    {
        string format = keep ? "#,##0.0" : "#,##0.#";
        string str;
        if (num < 1000)
        {
            str = num.ToString("#,##0");
        }
        else if (num < 1000000)
        {
            float fnum = Mathf.Floor(num / 100f) / 10;

            str = fnum.ToString(format) + "K";
        }
        else
        {
            float fnum = Mathf.Floor(num / 100000f) / 10;

            str = fnum.ToString(format) + "M";
        }
        return str;
    }

    /// <summary>
    /// 折扣显示
    /// </summary>
    /// <param name="num"></param>
    /// <returns></returns>
    public static string GetNumberString3(float num)
    {
        string str = "";
        if (num <= 1)
        {
            var discount = (1 - num) * 100;
            var decimalPart = discount - (int)discount;
            //            if ( decimalPart < 0.001f )
            str = discount.ToString("F0");
            //            else
            //                str = discount.ToString("F1");
        }
        else
            Debug.LogError("[ConverTools::GetNumberString3] Discount Exceeds 1");
        return str + "%";
    }

    public static string GetDiscountStringActual(float discount)
    {
        discount *= 100;
        var res = discount.ToString("F0");
        return res + "%";
    }

    public static string GetNumberStringRetain(double num, bool keep)
    {

        string str = "";
        if (num < 0.1)
        {
            str = num.ToString("##0.00");
        }
        else if (keep)
        {
            str = num.ToString("##0.0");
        }
        else
        {
            str = num.ToString("##0.#");
        }
        return str;
    }

    /// <summary>
    /// ("#,##0")
    /// </summary>
    /// <param name="num"></param>
    /// <returns></returns>
    public static string GetNumberString2(ulong num)
    {
        //输出类似713,999,999

        return num.ToString("#,##0");
    }

    /// <summary>
    /// ("#,##0")
    /// </summary>
    /// <param name="num"></param>
    /// <returns></returns>
    public static string GetNumberString2(long num)
    {
        //输出类似713,999,999

        return num.ToString("#,##0");
    }

    /// <summary>
    /// ("#,##0")
    /// </summary>
    /// <param name="num"></param>
    /// <returns></returns>
    public static string GetNumberString2(int num)
    {
        //输出类似713,999,999

        return num.ToString("#,##0");
    }
    /// <summary>
    /// 场景到UI 的坐标转换
    /// </summary>
    /// <param name="pos">场景中的全局坐标</param>
    /// <param name="local">是否转换成相对于UIRoot的局部坐标</param>
    /// <returns></returns>
    public static Vector3 WorldToScreenPoint(Vector3 pos, bool local = true)
    {
        Vector3 targetPos = Camera.main.WorldToScreenPoint(pos);
        Vector2 sizeDelta = UIManager.Instance.RectTrans.sizeDelta;

        //先获取主画布下的分辨率宽高：
        float resolutionRatioWidth = sizeDelta.x;
        float resolutionRatioHeight = sizeDelta.y;

        //计算主画布分辨率下的宽高和屏幕的宽高的比列：
        float widthRatio = resolutionRatioWidth / Screen.width;
        float heightRatio = resolutionRatioHeight / Screen.height;

        //先分别乘以宽高比值
        targetPos.x *= widthRatio;
        targetPos.y *= heightRatio;

        //计算在中心点的屏幕坐标
        targetPos.x -= resolutionRatioWidth * 0.5f;
        targetPos.y -= resolutionRatioHeight * 0.5f;
        if (local)
        {
            return targetPos;
        }
        return UIManager.Instance.RectTrans.transform.TransformPoint(targetPos);
    }

    /// <summary>
    /// 将3D场景的坐标转化为某个UI组件下的局部坐标。
    /// </summary>
    /// <param name="worldPosition">3D场景下的坐标</param>
    /// <param name="uiRectTransform">目标UI组件，默认为UIRoot，但UIRoot可能会有刘海屏适配bug。</param>
    /// <returns>相对于uiRectTransform的局部UI坐标</returns>
    public static Vector2 WorldToUiLocalPosition(Vector3 worldPosition, RectTransform uiRectTransform = null)
    {
        // uiRectTransform ??= UIManager.Instance.RectTrans;
        var screenPoint = RectTransformUtility.WorldToScreenPoint(Camera.main, worldPosition);
        return screenPoint;
        // Debug.Log($"ScreenPoint: {screenPoint}");
        // RectTransformUtility.ScreenPointToLocalPointInRectangle(uiRectTransform, screenPoint, Camera.main, out var localHitPosition);
        // Debug.Log($"localHitPosition: {localHitPosition}");
        // return localHitPosition;
    }

    public static string Encrypt(string text, string key)
    {
        DESCryptoServiceProvider des = new DESCryptoServiceProvider();
        des.Key = Encoding.ASCII.GetBytes(key);
        des.IV = Encoding.ASCII.GetBytes(key);

        ICryptoTransform encryptor = des.CreateEncryptor(des.Key, des.IV);
        byte[] inputBytes = Encoding.UTF8.GetBytes(text);
        byte[] outputBytes = encryptor.TransformFinalBlock(inputBytes, 0, inputBytes.Length);

        return Convert.ToBase64String(outputBytes);
    }

    const string RTMKey = "tbambooz";

    public static string Decrypt(string text)
    {
        DESCryptoServiceProvider des = new DESCryptoServiceProvider();
        des.Key = Encoding.ASCII.GetBytes(RTMKey);
        des.IV = Encoding.ASCII.GetBytes(RTMKey);

        ICryptoTransform decryptor = des.CreateDecryptor(des.Key, des.IV);
        byte[] inputBytes = Convert.FromBase64String(text);
        byte[] outputBytes = decryptor.TransformFinalBlock(inputBytes, 0, inputBytes.Length);

        return Encoding.UTF8.GetString(outputBytes);
    }

    /// <summary>
    /// 计算相机偏转限制
    /// </summary>
    /// <param name="configuredRotationAngle">为正数0-180</param>
    /// <returns></returns>
    public static float CalculateActualRotationAngle(float configuredRotationAngle)
    {
        float fovRad = 30 * Mathf.Deg2Rad;
        float rotationAngleRad = configuredRotationAngle * Mathf.Deg2Rad;
        float aspectRatio = Screen.width / (float)Screen.height;
        aspectRatio = Mathf.Clamp(aspectRatio, 0.45f, 1);
        aspectRatio = Mathf.Atan(Mathf.Tan(fovRad) * aspectRatio);
        float actualRotationAngleRad = Mathf.Max(0, rotationAngleRad - aspectRatio);
        float actualRotationAngle = actualRotationAngleRad * Mathf.Rad2Deg;
        return actualRotationAngle;
    }
    public static string ConvertActiveTime(TimeSpan t)
    {
        if (t.Days > 0)
        {
            return "";
        }
        if (t.Hours > 0)
        {
            return $"{t.Hours}h";
        }
        if (t.Minutes > 0)
        {
            return $"{t.Minutes}m";
        }
        if (t.Seconds > 0)
        {
            return $"{t.Seconds}s";
        }
        return "0s";
    }

    static public void SetFSBlur(bool isActive, float depth = 6)
    {
        var feature = zzwater.URPHelper.FindAndCacheRendererFeature("FSBlur");
        if (feature == null)
            Debug.LogError($"Feature FSWave not found");
        else
        {
            feature.SetActive(isActive);
            if (isActive)
            {
                FullScreenPassRendererFeature fullScreenPassRendererFeature = feature as FullScreenPassRendererFeature;
                Material material = fullScreenPassRendererFeature.passMaterial;
                if (material != null)
                {
                    material.SetFloat("_DepthThreshold", depth);
                }
            }
        }
    }

    /// <summary>
    /// 对List<int>进行原地洗牌（Fisher-Yates算法）
    /// </summary>
    /// <param name="list">需要打乱的列表</param>
    public static List<int> Shuffle(List<int> list, System.Random _random)
    {
        List<int> newlist = new List<int>(list);
        // 空列表/单元素列表无需打乱
        if (newlist == null || newlist.Count <= 1) return newlist;

        // Fisher-Yates 核心逻辑：从后往前遍历，逐个交换随机位置
        for (int i = newlist.Count - 1; i > 0; i--)
        {
            // 生成 0 到 i（包含i）之间的随机索引
            int randomIndex = _random.Next(0, i + 1);

            // 交换当前元素和随机位置的元素
            (newlist[i], newlist[randomIndex]) = (newlist[randomIndex], newlist[i]);
        }
        return newlist;
    }
}