using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;


namespace vHack.data
{
    public static class Encode
    {
        static string url = "https://api.vhack.cc/v/4/";
        static string secret = "aeffI";
        static byte[] base64Alphabet = new byte[] { (byte)65, (byte)66, (byte)67, (byte)68, (byte)69, (byte)70, (byte)71, (byte)72, (byte)73, (byte)74, (byte)75, (byte)76, (byte)77, (byte)78, (byte)79, (byte)80, (byte)81, (byte)82, (byte)83, (byte)84, (byte)85, (byte)86, (byte)87, (byte)88, (byte)89, (byte)90, (byte)97, (byte)98, (byte)99, (byte)100, (byte)101, (byte)102, (byte)103, (byte)104, (byte)105, (byte)106, (byte)107, (byte)108, (byte)109, (byte)110, (byte)111, (byte)112, (byte)113, (byte)114, (byte)115, (byte)116, (byte)117, (byte)118, (byte)119, (byte)120, (byte)121, (byte)122, (byte)48, (byte)49, (byte)50, (byte)51, (byte)52, (byte)53, (byte)54, (byte)55, (byte)56, (byte)57, (byte)45, (byte)95 };


        private static byte[] m9179a(byte[] bArr, int i, int i2, byte[] bArr2, int i3, byte[] bArr3)
        {
            int i4 = 0;
            int i5 = (i2 > 1 ? (bArr[i + 1] << 24) >> 16 : 0) | (i2 > 0 ? (bArr[i] << 24) >> 8 : 0);
            if (i2 > 2)
            {
                i4 = (bArr[i + 2] << 24) >> 24;
            }
            i4 |= i5;
            switch (i2)
            {
                case 1 /*1*/:
                    bArr2[i3] = bArr3[i4 >> 18];
                    bArr2[i3 + 1] = bArr3[(i4 >> 12) & 63];
                    bArr2[i3 + 2] = (byte)61;
                    bArr2[i3 + 3] = (byte)61;
                    break;
                case 2 /*2*/:
                    bArr2[i3] = bArr3[i4 >> 18];
                    bArr2[i3 + 1] = bArr3[(i4 >> 12) & 63];
                    bArr2[i3 + 2] = bArr3[(i4 >> 6) & 63];
                    bArr2[i3 + 3] = (byte)61;
                    break;
                case 3 /*3*/:
                    bArr2[i3] = bArr3[i4 >> 18];
                    bArr2[i3 + 1] = bArr3[(i4 >> 12) & 63];
                    bArr2[i3 + 2] = bArr3[(i4 >> 6) & 63];
                    bArr2[i3 + 3] = bArr3[i4 & 63];
                    break;
            }
            return bArr2;
        }

        public static string m9177a(byte[] bArr, int i, int i2, byte[] bArr2)
        {
            byte[] a = m9178a(bArr, i, i2, bArr2, 2147483647);
            int length = a.Length;
            while (length > 0 && a[length - 1] == 61)
            {
                length--;
            }
            return Encoding.UTF8.GetString(a, 0, length);
        }

        public static string m9175a(string str)
        {
            try
            {
                byte[] bytes = Encoding.UTF8.GetBytes(str);
                MD5 md5 = new MD5CryptoServiceProvider();
                byte[] result = md5.ComputeHash(bytes);
                StringBuilder stringBuilder = new StringBuilder();
                foreach (byte b in result)
                {
                    string toHexString = (b & 255).ToString("x2");
                    while (toHexString.Length < 2)
                    {
                        toHexString = "0" + toHexString;
                    }
                    stringBuilder.Append(toHexString);
                }
                return stringBuilder.ToString();
            }
            catch (Exception)
            {
                return "";
            }
        }

        public static byte[] m9178a(byte[] bArr, int i, int i2, byte[] bArr2, int i3)
        {
            int i4 = ((i2 + 2) / 3) * 4;
            byte[] bArr3 = new byte[(i4 + (i4 / i3))];
            int i5 = i2 - 2;
            int i6 = 0;
            int i7 = 0;
            int i8 = 0;
            while (i8 < i5)
            {
                i4 = (((bArr[i8 + i] << 24) >> 8) | ((bArr[(i8 + 1) + i] << 24) >> 16)) | ((bArr[(i8 + 2) + i] << 24) >> 24);
                bArr3[i7] = bArr2[i4 >> 18];
                bArr3[i7 + 1] = bArr2[(i4 >> 12) & 63];
                bArr3[i7 + 2] = bArr2[(i4 >> 6) & 63];
                bArr3[i7 + 3] = bArr2[i4 & 63];
                i4 = i6 + 4;
                if (i4 == i3)
                {
                    bArr3[i7 + 4] = (byte)10;
                    i7++;
                    i4 = 0;
                }
                i8 += 3;
                i7 += 4;
                i6 = i4;
            }
            if (i8 < i2)
            {
                m9179a(bArr, i8 + i, i2 - i8, bArr3, i7, bArr2);
                if (i6 + 4 == i3)
                {
                    bArr3[i7 + 4] = (byte)10;
                    i7++;
                }
                i7 += 4;
            }
            return bArr3;
        }

        public static string m9176a(string pattern, string str2, string str3)
        {
            string[] splitstring = new string[] { "::::" };
            string[] split = pattern.Split(splitstring, StringSplitOptions.None);
            string[] split2 = str2.Split(splitstring, StringSplitOptions.None);
            long currentTimeMillis = (long)(getCurrentTimeMillis() / 1000);
            string str4 = "{";

            for (int i = 0; i < split.Length; i++)
            {
                str4 += "\"" + split[i] + "\":\"" + split2[i] + "\",";
            }
            str4 += "\"time\":\"" + currentTimeMillis + "\"}";

            byte[] bytes = Encoding.UTF8.GetBytes(str4);
            string a = m9177a(bytes, 0, bytes.Length, base64Alphabet);
            string a2 = m9175a(str4.Length + m9175a(currentTimeMillis + ""));
            string str5 = split2[0] + "" + m9175a(m9175a(split2[1]));
            str4 = m9175a(currentTimeMillis + "" + str4);
            byte[] bytes2 = Encoding.UTF8.GetBytes(a2);
            byte[] bytes3 = Encoding.UTF8.GetBytes(str5);
            byte[] bytes4 = Encoding.UTF8.GetBytes(str4);
            a2 = m9175a(secret + m9175a(m9175a(m9177a(bytes2, 0, bytes2.Length, base64Alphabet))));
            str5 = m9177a(bytes3, 0, bytes3.Length, base64Alphabet);
            str4 = m9175a(m9175a(a2 + m9175a(m9175a(str5) + m9177a(bytes4, 0, bytes4.Length, base64Alphabet))));
            return url + str3 + "?user=" + a + "&pass=" + str4;
        }

        public static double getCurrentTimeMillis()
        {
            DateTime Jan1970 = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            TimeSpan javaSpan = DateTime.UtcNow - Jan1970;
            return javaSpan.TotalMilliseconds;
        }

    }
}