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#include <sstream>
#include <iomanip>
#include <random>
#include "LibHelpers_Functions.hh"
#include "base_time.hh"
#include "loggers.hh"
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#define earthRadius 6378137.0L
#define rbis = ((double)(earthRadius * M_PI / 180))
namespace LibHelpers__Functions {
/**
* @desc This external function gets the current time since 01/01/1970 in UTC format
* @return The current time since 01/01/1970 in UTC format in milliseconds
* @see fx_getCurrentTimeUtc() return UInt64
*/
INTEGER fx__getCurrentTimeUtc() {
INTEGER i;
i.set_long_long_val(base_time::get_instance().get_current_time_ms());
loggers::get_instance().log_msg("<<< fx__getCurrentTimeUtc: ", i);
return i;
}
/**
* @desc Gets the Minute of current UTC year
* @return MinuteOfTheYear - tenths of a second in the current or next hour in units of 1/10th second from UTC time
* @see function f_getMinuteOfTheYear() return MinuteOfTheYear
*/
INTEGER fx__getMinuteOfTheYear() {
// TODO: this is just a skeleton. fill in the function
return 0;
}
/**
* @desc Gets the milliseconds point in the current UTC minute
* @return DSecond - The milliseconds point in the current UTC minute (0..60000)
* @see function f_getDSecond() return DSecond
*/
INTEGER fx__getDSecond() {
// TODO: this is just a skeleton. fill in the function
return 0;
}
/**
* @desc Encode into Base64
* @return p_to_encode - The buffer to be encoded
* @see function f_enc_base64(in octetstring p_to_encode) return octetstring
*/
OCTETSTRING fx__enc__base64(const OCTETSTRING& p_to_encode) {
loggers::get_instance().log_msg(">>> fx__enc__base64: ", p_to_encode);
const std::vector<unsigned char> to_encode(static_cast<const unsigned char*>(p_to_encode), static_cast<const unsigned char*>(p_to_encode) + p_to_encode.lengthof());
std::vector<unsigned char> b64 = converter::get_instance().buffer_to_base64(to_encode);
OCTETSTRING os(b64.size(), b64.data());
loggers::get_instance().log_msg("<<< fx__enc__base64: ", os);
return os;
}
/**
* @desc Decode from Base64
* @return p_to_decode - The buffer to be decoded
* @see function f_dec_base64(in octetstring p_to_decode) return octetstring
*/
OCTETSTRING fx__dec__base64(const OCTETSTRING& p_to_decode) {
loggers::get_instance().log_msg(">>> fx__dec__base64: ", p_to_decode);
const std::vector<unsigned char> to_decode(static_cast<const unsigned char*>(p_to_decode), static_cast<const unsigned char*>(p_to_decode) + p_to_decode.lengthof());
std::vector<unsigned char> b64 = converter::get_instance().base64_to_buffer(to_decode);
OCTETSTRING os(b64.size(), b64.data());
loggers::get_instance().log_msg("<<< fx__dec__base64: ", os);
return os;
}
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static unsigned char random_char() {
std::random_device rd;
std::mt19937 gen(rd());
std::uniform_int_distribution<> dis(0, 255);
return static_cast<unsigned char>(dis(gen));
}
static std::string generate_hex(const unsigned int len) {
std::stringstream ss;
for(auto i = 0; i < len; i++) {
auto rc = random_char();
std::stringstream hexstream;
hexstream << std::hex << int(rc);
auto hex = hexstream.str();
ss << (hex.length() < 2 ? '0' + hex : hex);
}
return ss.str();
}
/**
* @brief Generate a new UUID
* @return The UUID in string format on success, a null string otherwise
*/
CHARSTRING fx__generate__uuid() { // ddb848c4-f7fd-445f-bdc8-033d15d7c528
loggers::get_instance().log(">>> fx__generate__uuid");
std::stringstream ss;
ss << generate_hex(6) << "-";
ss << generate_hex(2) << "-";
ss << generate_hex(2) << "-";
ss << generate_hex(2) << "-";
ss << generate_hex(6);
CHARSTRING uuid(ss.str().c_str());
loggers::get_instance().log_msg("fx__generate__uuid: ", uuid);
return uuid;
}
/**
* @brief Retrieve the current local date/time formatted as yyyy-mm-ddThh:mm:ss.lll+nn:00
* @return The the current date/time on success, a null string otherwise
*/
CHARSTRING fx__get__current__date__time() { //2018-01-18T13:19:35.367+01:00
loggers::get_instance().log(">>> fx__get__current__date__time");
time_t t = std::time(nullptr);
auto tm = *std::localtime(&t);
std::ostringstream oss;
oss << std::put_time(&tm, "%FT%T");//%FT%T%Z
CHARSTRING dt(oss.str().c_str());
loggers::get_instance().log_msg("fx__get__current__date__time: ", dt);
return dt;
}
} // namespace LibHelpers__Functions