#include "gscUtils.hxx"
#include <stdlib.h>
#include <string.h>

int gscUtils::EncodeTime(const char *date_yyyymmdd, const char *time_hhmmss){

    tm timeDecoder;
    char Dum[50];
    strncpy(Dum,date_yyyymmdd,4);
    strncpy(Dum+4,"\n",1);
    //std::cout << Dum << std::endl;
    timeDecoder.tm_year = atoi(Dum);
    //std::cout << atoi(Dum) << std::endl;
    timeDecoder.tm_year -= 1900;
    strncpy(Dum,date_yyyymmdd+5,2);
    strncpy(Dum+2,"\n",1);
    timeDecoder.tm_mon = atoi(Dum);
    timeDecoder.tm_mon--;
    strncpy(Dum,date_yyyymmdd+8,2);
    strncpy(Dum+2,"\n",1);
    timeDecoder.tm_mday = atoi(Dum);
    strncpy(Dum,time_hhmmss,2);
    strncpy(Dum+2,"\n",1);
    timeDecoder.tm_hour = atoi(Dum);
    strncpy(Dum,time_hhmmss+3,2);
    strncpy(Dum+2,"\n",1);
    timeDecoder.tm_min = atoi(Dum);
    strncpy(Dum,time_hhmmss+6,2);
    strncpy(Dum+2,"\n",1);
    timeDecoder.tm_sec = atoi(Dum);
    timeDecoder.tm_isdst=1;
    
    time_t checkTime = mktime(&timeDecoder);
    if(checkTime != -1){
        int requested_time = checkTime;
        return requested_time;
    }
    else{
        std::cerr << "Problem decoding date and time: " << date_yyyymmdd << " " << time_hhmmss  << std::endl;
        std::cerr << "Usage:  FgdFEBTemperature.exe or FgdFEBTemperature.exe yyyy-mm-dd hh:mm:ss filename or variations" << std::endl;
        exit(0);
        return -1;
    }
   
}

int gscUtils::GetEncodedCurrentTime(){
    time_t rawtime;
    struct tm *timeinfo;
    char date_yyyymmdd[80];
    char time_hhmmss[80];

    time ( &rawtime );
    timeinfo = localtime ( &rawtime );

    strftime(date_yyyymmdd,80,"%Y-%m-%d_%H:%M:%S",timeinfo);
    strftime(time_hhmmss,80,"%H:%M:%S",timeinfo);

    return EncodeTime(date_yyyymmdd,time_hhmmss);
}

int gscUtils::GetEncodedPreviousWeek(){
    return GetEncodedCurrentTime() - 60*60*24*7; //seg*min*hours*days in a week 
}