#include "settings.h"
#include "lib_crc32.h"
#include "lib_tcp.h"
/**t************************************************************************/
#include <inttypes.h>
/**e************************************************************************/
/***************************************************************************/
static unsigned char commands[16];
static unsigned int commandsLen;

static unsigned char parameters[16];
static unsigned int parametersLen;

static uint32_t crc;

/**h************************************************************************/
extern void lib_g6request_init()
{
    commandsLen=0;
    parametersLen=0;

    return;
}
/**h************************************************************************/
extern void lib_g6request_CRCme()
{
    lib_crc32_init();
    lib_crc32_data(commands, commandsLen);
    lib_crc32_data(parameters, parametersLen);
    crc=lib_crc32_crc();

    return;
}
/**h************************************************************************/
extern int lib_g6request_CRCcheck(uint32_t crcIn)
{
    return crcIn==crc;
}
/**h************************************************************************/
extern void lib_g6request_get_data()
{
    commands[commandsLen++]='D';
    return;
}
/**h************************************************************************/
extern void lib_g6request_get_fromLine(uint32_t lineFrom)
{
    commands[commandsLen++]='w';
    *((uint32_t*)(&parameters[parametersLen]))=lineFrom;
    parametersLen +=4;
    return;
}
/**h************************************************************************/
extern void lib_g6request_get_lines(int32_t lines)
{
    commands[commandsLen++]='v';
    *((uint16_t*)(&parameters[parametersLen]))=lines;
    parametersLen +=2;
    return;
}
/**h************************************************************************/
extern void lib_g6request_flag(unsigned char flagCh)
{
    commands[commandsLen++]=flagCh;
    return;
}
/**h************************************************************************/
extern int lib_g6request_send()
{

    res=lib_tcp_send("\t\t", 2);
    res=lib_tcp_send(commands, commandsLen);
    res=lib_tcp_send("\r\n", 2);
    res=lib_tcp_send(parameters, parametersLen);

    return res;
}
/***************************************************************************/
// usage:
    lib_tcp_setPort("70");

    res=lib_tcp_connect("hostname.com");

    res=lib_tcp_send(string, "/main_page");

    lib_g6request_init();
    lib_g6request_get_data();
    lib_g6request_get_fromLine(fromLineN);
    lib_g6request_get_lines(lines);
    lib_g6request_flag('5');
    lib_g6request_CRCme();
    res=lib_g6request_send();

    res=lib_tcp_readN((char *)&crcIn, 4);

    res=lib_g6request_CRCcheck(crcIn);
    if (res)
    {
//        lib_status_printSt( 9,"G6 answer" );
        res=lib_tcp_readN((char *)&lib_gopher6_rcode, 1);
        if (lib_gopher6_rcode>=16)
        {
             lib_status_printSt( 9,"G6 error:" );
             return 1;
        }
        res=lib_tcp_readN((char *)&lib_gopher6_gtype, 1);

        unsigned char varA=lib_gopher6_rcode & 0x03;
        unsigned char varB=lib_gopher6_rcode >> 2;

        lib_gopher6_dataLen=readNum(varB);

        res=lib_tcp_readN((char *)&varB, 1);

        lib_gopher6_dataStrings=readNum(varB);

    }
    else
    {
        lib_gopher6_dataLen=0;
        lib_gopher6_dataStrings=LINE_NUM_MEM;
    }