#include "utilsfunc.h"
#include <QDateTime>
#include <QtEndian>
#include <cstring>

#ifdef _MSC_VER
#pragma execution_character_set("utf-8")
#endif

namespace UtilsFun {

union TMPUN{
    float f;
    uint v;
};

const static uchar _auchCRCHi[256] = {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 };
            // CRC低位字节值表
const static uchar  _auchCRCLo[256] = {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 } ;


uchar daiMaHe(const QByteArray &ch,  int len )
{
    long rv = 0;
    for(int i = 0; i < len; ++i)
    {
        rv += ch.at(i);
    }
    return static_cast<uchar>(rv);
}

ushort CRC(const QByteArray & ch,int len)
{
   uchar crcLo = 0xff; // 初始化校验结果低字节
   uchar crcHi = 0xff; // 初始化校验结果高字节
   for (int i = 0; i < len; i++)
   {
       int crcIndex = crcLo ^ static_cast<uchar>(ch.at(i));
       crcLo = static_cast<uchar>(crcHi ^ _auchCRCHi[crcIndex]);
       crcHi = _auchCRCLo[crcIndex];

      /* uIndex = uchCRCHi ^ *puchMsg++;
       uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex];
       uchCRCLo = auchCRCLo[uIndex]; */

   }
  return static_cast<ushort>(crcHi << 8 | crcLo);
}

uchar LRC(const QByteArray & ch,int len)
{
    long rv = 0;
    for(int i = 0; i < len; ++i)
    {
        rv += static_cast<uchar>(ch.at(i));
    }
    return static_cast<uchar>((rv ^ 0xFF) + 1);
}

uchar XOR(const QByteArray & ch,int len)
{
    uchar A = 0;
    for (int i = 1; i < len; i++)
    {
        A ^= static_cast<uchar>(ch.at(i));
    }
    return A;
}

QByteArray reverse(const QByteArray & ch){
    QByteArray rv;
    rv.resize(ch.size());
    for(int  i = 0, j = ch.length() -1; j >= 0; j--, i++){
        rv[i] = ch[j];
    }
    return rv;
}

QBitArray getBits(const QByteArray & ch){
    QBitArray ary;
    ary.resize(ch.length() * 8);
    int k = 0;
    for(int i = 0; i < ch.length(); ++i){
        uchar th = ch.at(i);
        uint t = 1;
        for(int j = 0; j < 8; ++j, t = (t << 1)){
            bool b = t & th;
            ary.setBit(k,b);
            ++k;
        }
    }
    return ary;
}

QByteArray toBytes(const QBitArray & bits)
{
    uchar ch = 0x00;
    QByteArray ary;
    int index = 0;
    for(int i = 0; i < bits.count(); ++i)
    {
        bool th = bits[i];
        if(th){
            ch = static_cast<uchar>(ch | (0x01 << index));
        }
        ++ index;
        if(index == 7){
            ary.append(ch);
            ch = 0x00;
        }
    }
    if(index > 0)
        ary.append(ch);
    return ary;
}


void getRTUBytes(float v, char * ary)
{
    TMPUN t;
    t.f = v;
    qToBigEndian(t.v, reinterpret_cast<uchar *>(ary));
}

void getRTUBytes(int v, char * ary)
{
    qToBigEndian(v, reinterpret_cast<uchar *>(ary));
}

void getRTUBytes(short v, char * ary)
{
    qToBigEndian(v, reinterpret_cast<uchar *>(ary));
}

float toFloatRTUValue(const char * ary)
{
    TMPUN t;
    t.v = qFromBigEndian<uint>(reinterpret_cast<const uchar *>(ary));

    return t.f;
}

int toIntRTUValue(const char * ary)
{
    return qFromBigEndian<int>(reinterpret_cast<const uchar *>(ary));
}

short toShortRTUValue(const char * ary)
{
    return qFromBigEndian<short>(reinterpret_cast<const uchar *>(ary));
}

}