using System;
using System.Collections.Generic;
using System.Configuration;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net.NetworkInformation;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace FujianEarthquake.Common
{
    public static class Tools
    {
        /// <summary>
        /// IP地址是否ping通
        /// </summary>
        /// <param name="strIP">IP地址例如“10.8.2.1”</param>
        /// <returns></returns>
        public static bool PingIp(string strIP)
        {
            bool bRet = false;
            try
            {
                Ping pingSend = new Ping();
                PingReply reply = pingSend.Send(strIP, 1000);
                if (reply.Status == IPStatus.Success)
                    bRet = true;
            }
            catch (Exception)
            {
                bRet = false;
            }
            return bRet;
        }


        /// <summary>
        /// 添加日志
        /// </summary>
        /// <param name="logstring"></param>
        public static void AddLog(string logstring)
        {
            AddLgoToTXT("解析数据.txt", System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + @"数据记录\" + System.DateTime.Now.ToString("yyyy_MM_dd") + @"\", logstring);
        }


        /// <summary>
        /// 文件自动保存
        /// </summary>
        /// <param name="_file_name">文件名称</param>
        /// <param name="path">保存路径</param>
        /// <param name="logstring">文件内容</param>
        public static void AddLgoToTXT(string _file_name, string path, string logstring)
        {
            //检查是否存在该路径
            if (!System.IO.Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }

            path = path + _file_name;
            //检查该路径下是否存在该文件
            if (!System.IO.File.Exists(path))
            {
                FileStream stream = null;
                try
                {
                    stream = System.IO.File.Create(path);
                    stream.Close();
                    stream.Dispose();
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    if (stream != null)
                    {
                        stream.Close();
                        stream.Dispose();
                    }
                }

            }
            if (!Txt_Used.ContainsKey(path))
            {
                Txt_Used.Add(path, true);
            }
            else
            {
                if (Txt_Used[path])
                {
                    return;
                }
                else
                {
                    Txt_Used[path] = true;
                }
            }
            FileStream fs = null;
            try
            {
                //[1]创建文件流 文件路径 和枚举类型的文件操作类型
                fs = new FileStream(path, FileMode.Append);
                //[2]创建写入器
                StreamWriter sw = new StreamWriter(fs);
                //[3]以流的方式写入数据
                sw.Write(logstring);
                //[4]关闭写入器
                sw.Close();
                //[5]关闭文件流
                fs.Close();
                Txt_Used[path] = false;
            }
            catch (Exception ex)
            {

            }
            finally
            {
                if (fs != null)
                {
                    fs.Close();
                    fs.Dispose();
                }
            }
        }

        static Dictionary<string, bool> Txt_Used = new Dictionary<string, bool>();


        /// <summary>
        /// 读取本地TXT文件
        /// </summary>
        /// <param name="_file_name"></param>
        /// <param name="path"></param>
        /// <returns></returns>
        public static string ReadFromTXT(string _file_name, string path)
        {
            //检查是否存在该路径 
            if (!System.IO.Directory.Exists(path))
                return "所选时间段没有系统日志";
            path = path + _file_name;
            //检查该路径下是否存在该文件
            if (!System.IO.File.Exists(path))
                return "所选时间段没有系统日志";
            //如果文件占用就
            if (FileIsInUse(new FileInfo(path)))
                return "";
            //[1]创建文件流
            FileStream fs = new FileStream(path, FileMode.Open);
            //【2】创建读取器
            //Encoding.Default 读取未知文件是使用default格式
            //StreamReader sr = new StreamReader(fs,Encoding.Default);
            StreamReader sr = new StreamReader(fs);
            //【3】以流的方式读取数据
            string txt = sr.ReadToEnd();
            //[4]关闭读取器
            sr.Close();
            //【5】关闭文件流
            fs.Close();

            return txt;
        }


        /// <summary>
        /// 判断文件是否被占用
        /// </summary>
        /// <param name="file"></param>
        /// <returns></returns>
        static bool FileIsInUse(FileInfo file)
        {
            FileStream stream = null;
            try
            {
                stream = file.Open(FileMode.Open, FileAccess.ReadWrite, FileShare.None);
            }
            catch (IOException)
            {
                //如果文件被占用，即
                //1.文件正在被另一个线程处理
                //2.或者正在被另一个线程处理
                //3.或者文件不存在
                return true;
            }
            finally
            {
                if (stream != null)
                    stream.Close();
            }
            return false;
        }


        #region  CRC校验
        private static readonly byte[] aucCRCHi = {
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
             0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
             0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
             0x00, 0xC1, 0x81, 0x40
         };
        private static readonly byte[] aucCRCLo = {
             0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
             0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
             0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
             0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
             0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
             0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
             0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
             0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
             0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
             0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
             0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
             0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
             0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
             0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
             0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
             0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
             0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
             0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
             0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
             0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
             0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
             0x41, 0x81, 0x80, 0x40
         };

        public static byte[] Crc16(byte[] pucFrame, int usLen)
        {
            int i = 0;
            byte crcHi = 0xFF;
            byte crcLo = 0xFF;
            UInt16 iIndex = 0x0000;

            while (usLen-- > 0)
            {
                iIndex = (UInt16)(crcLo ^ pucFrame[i++]);
                crcLo = (byte)(crcHi ^ aucCRCHi[iIndex]);
                crcHi = aucCRCLo[iIndex];
            }

            return new byte[] { crcLo, crcHi };
        }


        /// <summary>
        /// CRC校验，参数data为byte数组
        /// </summary>
        /// <param name="data">校验数据，字节数组</param>
        /// <returns>字节1是高8位，字节0是低8位</returns>
        public static byte[] CRCCalc(byte[] data)
        {
            //crc计算赋初始值
            int crc = 0xffff;
            for (int i = 0; i < data.Length; i++)
            {
                crc = crc ^ data[i];
                for (int j = 0; j < 8; j++)
                {
                    int temp;
                    temp = crc & 1;
                    crc = crc >> 1;
                    crc = crc & 0x7fff;
                    if (temp == 1)
                    {
                        crc = crc ^ 0xa001;
                    }
                    crc = crc & 0xffff;
                }
            }
            //CRC寄存器的高低位进行互换
            byte[] crc16 = new byte[2];
            crc16[0] = (byte)((crc >> 8) & 0xff);
            crc16[1] = (byte)(crc & 0xff);
            return crc16;
        }


        /// <summary>
        /// CRC校验，参数data为byte数组
        /// </summary>
        /// <param name="data">校验数据，字节数组</param>
        /// <returns>字节0是高8位，字节1是低8位</returns>
        public static byte[] CRCCalcRev(byte[] data)
        {
            //crc计算赋初始值
            int crc = 0xffff;
            for (int i = 0; i < data.Length; i++)
            {
                crc = crc ^ data[i];
                for (int j = 0; j < 8; j++)
                {
                    int temp;
                    temp = crc & 1;
                    crc = crc >> 1;
                    crc = crc & 0x7fff;
                    if (temp == 1)
                    {
                        crc = crc ^ 0xa001;
                    }
                    crc = crc & 0xffff;
                }
            }
            //CRC寄存器的高低位进行互换
            byte[] crc16 = new byte[2];
            crc16[1] = (byte)((crc >> 8) & 0xff);
            crc16[0] = (byte)(crc & 0xff);
            return crc16;
        }
        #endregion


        #region CRC16-8005
        private static readonly ushort[] _table = new ushort[256]
        {
            0,32773,32783,10,32795,30,20,32785,32819,54,60,32825,40,32813,32807,34,
            32867,102,108,32873,120,32893,32887,114,80,32853,32863,90,32843,78,68,32833,
            32963,198,204,32969,216,32989,32983,210,240,33013,33023,250,33003,238,228,32993,
            160,32933,32943,170,32955,190,180,32945,32915,150,156,32921,136,32909,32903,130,
            33155,390,396,33161,408,33181,33175,402,432,33205,33215,442,33195,430,420,33185,
            480,33253,33263,490,33275,510,500,33265,33235,470,476,33241,456,33229,33223,450,
            320,33093,33103,330,33115,350,340,33105,33139,374,380,33145,360,33133,33127,354,
            33059,294,300,33065,312,33085,33079,306,272,33045,33055,282,33035,270,260,33025,
            33539,774,780,33545,792,33565,33559,786,816,33589,33599,826,33579,814,804,33569,
            864,33637,33647,874,33659,894,884,33649,33619,854,860,33625,840,33613,33607,834,
            960,33733,33743,970,33755,990,980,33745,33779,1014,1020,33785,1000,33773,33767,994,
            33699,934,940,33705,952,33725,33719,946,912,33685,33695,922,33675,910,900,33665,
            640,33413,33423,650,33435,670,660,33425,33459,694,700,33465,680,33453,33447,674,
            33507,742,748,33513,760,33533,33527,754,720,33493,33503,730,33483,718,708,33473,
            33347,582,588,33353,600,33373,33367,594,624,33397,33407,634,33387,622,612,33377,
            544,33317,33327,554,33339,574,564,33329,33299,534,540,33305,520,33293,33287,514
        };


        /// <summary>
        /// C#CRC16 8005
        /// </summary>
        /// <param name="buffer"></param>
        /// <returns></returns>
        public static byte[] ComputeChecksum(byte[] buffer)
        {
            ushort crc = 0;
            for (int i = 0; i < buffer.Length; ++i)
            {
                crc = (ushort)((crc << 8) ^ _table[(crc >> 8) ^ buffer[i]]);
            }

            return new byte[]
            {
                (byte)(crc >> 8), // High byte
                (byte)crc        // Low byte
            };
        }
        #endregion


        #region 16进制转字符串ASCII
        /// <summary>
        /// 16进制转字符串ASCII
        /// </summary>
        /// <param name="hs"></param>
        /// <param name="encode"></param>
        /// <returns></returns>
        public static string HexStringToString(string hs, Encoding encode)
        {
            StringBuilder strTemp = new StringBuilder();
            byte[] b = new byte[hs.Length / 2];
            for (int i = 0; i < hs.Length / 2; i++)
            {
                strTemp.Clear();
                strTemp.Append(hs.Substring(i * 2, 2));
                b[i] = Convert.ToByte(strTemp.ToString(), 16);
            }
            return encode.GetString(b);
        }
        #endregion


        #region 16进制转2进制
        /// <summary>
        /// //16转2方法
        /// </summary>
        /// <param name="hexString"></param>
        /// <returns></returns>
        public static string HexString2BinString(string hexString)
        {
            try
            {
                string result = string.Empty;
                foreach (char c in hexString)
                {
                    int v = Convert.ToInt32(c.ToString(), 16);
                    int v2 = int.Parse(Convert.ToString(v, 2));
                    // 去掉格式串中的空格，即可去掉每个4位二进制数之间的空格，
                    result += string.Format("{0:d4} ", v2);
                }
                return result;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                throw;
            }
        }
        #endregion


        #region 16进制字符串转byte数组
        // 将十六进制字符串转换为字节数组
        public static byte[] HexStringToByteArray(string hexString)
        {
            if (!IsHexStringValid(hexString))
            {
                throw new ArgumentException("无效的十六进制字符串！", nameof(hexString));
            }

            return Enumerable.Range(0, hexString.Length / 2).Select(x => Convert.ToByte(hexString.Substring(x * 2, 2), 16)).ToArray();
        }

        // 验证十六进制字符串格式是否正确
        private static bool IsHexStringValid(string hexString)
        {
            Regex regex = new Regex(@"^[A-Fa-f\d]+$");
            return regex.Match(hexString).Success && hexString.Length % 2 == 0;
        }
        #endregion


        #region 校验和
        public static byte CheckSum(byte[] buffer)
        {
            byte sum = 0;
            foreach (byte b in buffer)
            {
                sum += b;
            }

            return sum;
        }
        #endregion


        #region 配置文件操作
        private static Configuration config = System.Configuration.ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);


        /// <summary>
        /// 获取配置文件
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string GetAppSetting(string key)
        {
            if (ConfigurationManager.AppSettings.AllKeys.Contains(key))
            {
                string value = config.AppSettings.Settings[key].Value;
                return value;
            }
            else
            {
                return null;
            }
        }


        /// <summary>
        /// 更新配置文件信息
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public static void UpdateAppSettings(string key, string value)
        {
            if (GetAppSetting(key) == value)   //如果写入的配置文件和之前一致 就不写入了
                return;
            if (ConfigurationManager.AppSettings.AllKeys.Contains(key))
            {
                config.AppSettings.Settings[key].Value = value;
                config.Save(ConfigurationSaveMode.Modified);
                ConfigurationManager.RefreshSection("appSettings");//刷新数据
            }
            else
            {
                Console.WriteLine("当前节点不存在!");
            }
        }
        #endregion


        #region  内存清理
        /// <summary>
        /// 设置线程工作的空间
        /// </summary>
        /// <param name="process">线程</param>
        /// <param name="minSize">最小空间</param>
        /// <param name="maxSize">最大空间</param>
        /// <returns></returns>
        [System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint = "SetProcessWorkingSetSize", ExactSpelling = true, CharSet = System.Runtime.InteropServices.CharSet.Ansi, SetLastError = true)]
        private static extern int SetProcessWorkingSetSize(IntPtr process, int minimumWorkingSetSize, int maximumWorkingSetSize);


        public static void ClearMemory(object o)
        {
            GC.Collect();
            GC.SuppressFinalize(o);


            if (Environment.OSVersion.Platform == PlatformID.Win32NT)
            {
                SetProcessWorkingSetSize(System.Diagnostics.Process.GetCurrentProcess().Handle, -1, -1);
            }
        }
        #endregion


        public static float ConvertStringToTwoDecimalPlaces(string value)
        {
            try
            {
                return float.Parse(value, CultureInfo.CreateSpecificCulture("en-US"));
            }
            catch
            {
                // 处理转换失败的情况，例如value不是有效的两位小数字符串
                return 0.0f;
            }
        }


        /// <summary>
        /// 获取当前设备的所有端口号
        /// </summary>
        /// <returns></returns>
        public static string[] GetSerialPort()
        {
            string[] ports = null;
            ports = System.IO.Ports.SerialPort.GetPortNames();
            return ports;
        }


        /// <summary>
        /// 比较两个byte数组是否相等
        /// </summary>
        /// <param name="array1"></param>
        /// <param name="array2"></param>
        /// <returns></returns>
        public static bool CompareByte(byte[] array1, byte[] array2)
        {
            if (array1 == null || array2 == null)
                return false;

            return array1.SequenceEqual(array2);
        }


        #region 判断byte数组特定位置是否为1
        public static bool IsBitSet(byte[] bytes, int position)
        {
            int arrayIndex = position / 8; // 计算byte数组的索引
            int bitIndex = position % 8;   // 计算位的索引（0-7）

            // 确保索引没有超出数组范围
            if (arrayIndex >= bytes.Length)
                throw new IndexOutOfRangeException("Position is out of range of the byte array.");

            byte b = bytes[arrayIndex];
            // 使用位运算检查位是否为1
            bool isSet = (b & (1 << bitIndex)) != 0;
            return isSet;
        }
        #endregion


        #region 十六进制数组转二进制数组
        public static byte[] ConvertHexToBinary(byte[] hexArray)
        {
            byte[] binaryArray = new byte[hexArray.Length * 8];
            for (int i = 0; i < hexArray.Length; i++)
            {
                string binaryString = Convert.ToString(hexArray[i], 2);
                // 补充到8位，以确保每个byte都是8位
                binaryString = binaryString.PadLeft(8, '0');
                // 将二进制字符串转换为byte数组
                for (int j = 0; j < 8; j++)
                {
                    binaryArray[i * 8 + j] = Convert.ToByte(binaryString[j] - '0');
                }
            }
            return binaryArray;
        }
        #endregion


        #region IntToByte[4]
        /// <summary>
        /// int转化为byte[4]
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static byte[] IntToBytes(int value)
        {
            byte[] src = new byte[4];
            src[0] = (byte)((value >> 24) & 0xFF);
            src[1] = (byte)((value >> 16) & 0xFF);
            src[2] = (byte)((value >> 8) & 0xFF);//高8位
            src[3] = (byte)(value & 0xFF);//低位
            return src;
        }
        #endregion


        #region byte数组按长度在前面补0
        /// <summary>
        /// byte数组按长度在前面补0
        /// </summary>
        /// <param name="array"></param>
        /// <param name="targetLength"></param>
        /// <returns></returns>
        /// <exception cref="ArgumentNullException"></exception>
        /// <exception cref="ArgumentOutOfRangeException"></exception>
        public static byte[] PadArrayWithZeros(byte[] array, int targetLength)
        {
            if (array == null)
                throw new ArgumentNullException(nameof(array));
            if (targetLength <= 0)
                throw new ArgumentOutOfRangeException(nameof(targetLength), "Target length must be a positive integer.");
            if (targetLength <= array.Length)
                return array; // No need to pad

            byte[] paddedArray = new byte[targetLength];
            Array.Copy(array, 0, paddedArray, targetLength - array.Length, array.Length);
            return paddedArray;
        }
        #endregion

    }
}