using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BatCharging.Service
{
    public class ByteUtils
    {
        /// <summary>
        /// 十六进制字符串转字符串
        /// </summary>
        /// <param name="strHex"></param>
        /// <returns></returns>
        public static string StrHex2Str(string strHex)
        {
            byte[] keyWord = new byte[strHex.Length / 2];
            string strResult = "";
            for (int i = 0; i < keyWord.Length; i++)
            {
                try
                {
                    keyWord[i] = (byte)(0xff & Convert.ToInt32(strHex.Substring(i * 2, 2), 16));
                    strResult += Convert.ToChar(keyWord[i]).ToString();
                }
                catch (Exception e)
                {
                    e.ToString();
                }
            }

            return strResult;
        }

        /// <summary>
        /// 字符串转16进制字符串
        /// </summary>
        /// <param name="strSrc"></param>
        /// <returns></returns>
        public static string Str2HexStr(string strSrc)
        {
            char[] chTemp = strSrc.ToCharArray();
            string strResult = "";
            foreach (var ch in chTemp)
            {
                int value = Convert.ToInt32(ch);
                strResult += String.Format("{0:X}", value);
            }

            //strResult = "6000" + strResult;
            return strResult;
        }

        /// <summary>
        /// 根据高位优先的原理的两字节数据解析返回一个16为无符号整数
        /// </summary>
        /// <param name="value">原字节数组(含有两字节）</param>
        /// <returns>返回无符号整数</returns>
        public static ushort ToUInt16(byte[] value)
        {
            return (ushort)((value[0] << 8) | (value[1] & 0x00FF));
        }

        /// <summary>
        /// 根据高位优先的原理的两字节数据解析返回一个16为无符号整数
        /// </summary>
        /// <param name="value">原字节数组</param>
        /// <param name="offset">缓冲区偏移</param>
        /// <returns>返回无符号整数</returns>
        public static UInt16 ToUInt16(byte[] value, int offset)
        {
            return (ushort)((value[offset] << 8) | (value[offset + 1] & 0x00FF));
        }
        /// <summary>
        /// 根据高位优先颠倒的原理的两字节数据解析返回一个16为无符号整数
        /// </summary>
        /// <param name="value">原字节数组</param>
        /// <param name="offset">缓冲区偏移</param>
        /// <returns>返回无符号整数</returns>
        public static UInt16 DToUInt16(byte[] value, int offset)
        {
            return (ushort)(value[offset] + (value[offset + 1] << 8));
        }

        public static UInt32 ToUInt32(byte[] value, int offset)
        {
            UInt16 low = (ushort)((value[offset + 1] << 8) | (value[offset] & 0x00FF));
            UInt16 height = (ushort)((value[offset + 3] << 8) | (value[offset + 2] & 0x00FF));

            return (UInt32)(height << 16 | low);
        }
        public static UInt32 DToUInt32(byte[] value, int offset)
        {
            UInt16 low = (ushort)((value[offset + 1] << 8) | (value[offset] & 0x00FF));
            UInt16 height = (ushort)((value[offset + 3] << 8) | (value[offset + 2] & 0x00FF));

            return (UInt32)(height << 16 | low);
        }


        /// <summary>
        /// 16进制数高地位对调
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static byte[] Int16ToByteArray(Int16 value) //16进制数高地位对调
        {
            byte[] bytesResult = new byte[2];
            byte[] temp = new byte[2];

            BitConverter.GetBytes(Convert.ToInt16(value)).CopyTo(temp, 0);

            bytesResult[0] = temp[1];
            bytesResult[1] = temp[0];

            return bytesResult;
        }
        /// <summary>
        /// 32进制数高地位对调
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static byte[] Int32ToByteArray(Int32 value) //16进制数高地位对调
        {
            byte[] bytesResult = new byte[4];
            byte[] temp = new byte[4];

            BitConverter.GetBytes(Convert.ToInt32(value)).CopyTo(temp, 0);

            bytesResult[0] = temp[3];
            bytesResult[1] = temp[2];
            bytesResult[2] = temp[1];
            bytesResult[3] = temp[0];

            return bytesResult;
        }

        /// <summary>
        /// 获取16进制字符串的字节数组
        /// </summary>
        /// <param name="hexString">hexString 16进制字符串</param>
        /// <returns>字节数组</returns>
        public static byte[] ToByteByHexStr(string hexString)
        {
            if (hexString == null)
                return null;

            hexString = hexString.Replace(" ", "");
            if ((hexString.Length % 2) != 0)
                hexString += " ";
            byte[] returnBytes = new byte[hexString.Length / 2];
            for (int i = 0; i < returnBytes.Length; i++)
                returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
            return returnBytes;
        }
        /// <summary>
        /// 获取32进制字符串的字节数组
        /// </summary>
        /// <param name="hexString">hexString 16进制字符串</param>
        /// <returns>字节数组</returns>
        public static byte[] ToByteByHexStr32(string hexString, int leng)
        {
            byte[] bytes = new byte[leng];
            // 使用UTF8编码将字符串转换为字节数组  
            byte[] byteArray = Encoding.ASCII.GetBytes(hexString);

            // 如果需要确保数组长度为32字节，可以添加逻辑来处理长度不足的情况  
            if (byteArray.Length < leng)
            {
                Array.Copy(byteArray, 0, bytes, 0, byteArray.Length);
            }
            //else if (byteArray.Length > leng)
            //{
            //    // 长度超过32字节，可以截断或者抛出异常  
            //    Array.Copy(byteArray, 0, new byte[leng], 0, leng); // 截断数组到32字节  
            //}
            return bytes;
        }

        /// <summary>
        /// 获取16进制字符串的字节数组
        /// </summary>
        /// <param name="hexString">hexString 16进制字符串</param>
        /// <returns>字节数组</returns>
        public static byte[] ToByteByStr(string strValue)
        {
            #region 转化到十六进制字符串

            char[] chTemp = strValue.ToCharArray();
            string strHex = "";
            foreach (var ch in chTemp)
            {
                int value = Convert.ToInt32(ch);
                strHex += String.Format("{0:X}", value);
            }

            #endregion 转化到十六进制字符串

            if (strHex == null)
                return null;

            strHex = strHex.Replace(" ", "");
            if ((strHex.Length % 2) != 0)
                strHex += " ";
            byte[] returnBytes = new byte[strHex.Length / 2];
            for (int i = 0; i < returnBytes.Length; i++)
                returnBytes[i] = Convert.ToByte(strHex.Substring(i * 2, 2), 16);

            return returnBytes;
        }

        public static string BytesToHexStr(byte[] data)
        {
            StringBuilder sb = new StringBuilder(data.Length * 3);
            foreach (byte b in data)
                sb.Append(Convert.ToString(b, 16).PadLeft(2, '0') + " ");
            return sb.ToString().ToUpper();
        }

        /// <summary>
        /// 字节转换成布尔数组
        /// </summary>
        /// <param name="b"></param>
        /// <returns></returns>
        public static bool[] ByteToBoolArray(byte value)
        {
            bool[] array = new bool[8];
            for (int i = 0; i <= 7; i++)
            {
                //对于byte的每bit进行判定
                array[i] = (value & 1) == 1; //判定byte的最后一位是否为1，若为1，则是true；否则是false
                value = (byte)(value >> 1); //将byte右移一位
            }

            return array;
        }


        /// <summary>
        /// UInt16转换成布尔数组
        /// </summary>
        /// <param name="value">16位无符号整形</param>
        /// <returns>布尔数组</returns>
        public static bool[] UInt16ToBoolArray(ushort value)
        {
            bool[] array = new bool[16];
            for (int i = 0; i <= 15; i++)
            {
                //对于byte的每bit进行判定
                array[i] = (value & 1) == 1; //判定byte的最后一位是否为1，若为1，则是true；否则是false
                value = (ushort)(value >> 1); //将byte右移一位
            }

            return array;
        }

        public static string CP56time2aToStr(byte[] bytes)
        {
            return "20" + Convert.ToInt32(bytes[6]).ToString("00") + "-" + Convert.ToInt32(bytes[5]).ToString("00")
                   + "-" + Convert.ToInt32(bytes[4]).ToString("00") + " " + Convert.ToInt32(bytes[3]).ToString("00")
                   + ":" + Convert.ToInt32(bytes[2]).ToString("00") + ":"
                   + (ToFUInt16(bytes, 0) / 1000).ToString("00");
        }

        public static ushort ToFUInt16(byte[] value, int offset)
        {
            return (ushort)((value[offset + 1] << 8) | (value[offset] & 0x00FF));
        }

        /// <summary>
        /// BCD码转byte
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static byte BCDToByte(byte value)
        {
            //高四位
            byte high = (byte)((value >> 4 & 0xF));
            //低四位
            byte low = (byte)(value & 0xF);
            return (byte)(high * 10 + low);
        }

        /// <summary>
        /// byte转BCD码
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static byte ByteToBCD(byte value)
        {
            //高四位
            byte high = (byte)(value / 10);
            //低四位
            byte low = (byte)(value % 10);
            return (byte)(high << 4 | low);
        }
    }
}