#include <stdexcept>
#include <regex>

#include "Params.hh"
#include "loggers.hh"

const std::string& Params::mac_src = std::string("mac_src");
const std::string& Params::mac_dst = std::string("mac_dst");
const std::string& Params::its_aid = std::string("its_aid");
const std::string& Params::ssp = std::string("ssp");
const std::string& Params::gn_payload = std::string("gn_payload");
const std::string& Params::gn_next_header = std::string("gnNextHeader");
const std::string& Params::gn_header_type = std::string("gnHeaderType");
const std::string& Params::gn_header_sub_type = std::string("gnHeaderSubtype");
const std::string& Params::gn_lifetime = std::string("gnLifetime");
const std::string& Params::gn_traffic_class = std::string("gnTrafficClass");
const std::string& Params::btp_type = std::string("btp_type");
const std::string& Params::btp_payload = std::string("btp_payload");
const std::string& Params::btp_destination_port = std::string("btpDestinationPort");
const std::string& Params::btp_info = std::string("btpInfo");

void Params::convert(Params& p_param, const std::string p_parameters) {
  //loggers::get_instance().log(">>> Params::convert: '%s'", p_parameters.c_str());
  // Sanity checks
  if (p_parameters.length() == 0) {
    return;
  }
  // Extract parameters
  try {
    std::regex rgx ("(\\w+)=(.*?)(,|$)");
    std::sregex_iterator begin(p_parameters.cbegin(), p_parameters.cend(), rgx);
    std::sregex_iterator end = std::sregex_iterator();
    for (std::sregex_iterator it = begin; it != end; ++it) {
      std::smatch m = *it;
      //loggers::get_instance().log("Params::convert: %d - %s - %s - %s - %s", m.size(), m[0].str().c_str(), m[1].str().c_str(), m[2].str().c_str(), m[3].str().c_str());
      p_param.insert(std::pair<std::string, std::string>(m[1].str(), m[2].str()));
    } // End of 'for' statement
  }
  catch(const std::logic_error& e){
    p_param.clear();
  }
}

void Params::log() {
  loggers::get_instance().log("Params::log");
  for (const_iterator it = cbegin(); it != cend(); ++it) {
    loggers::get_instance().log("\t(%s, %s)", it->first.c_str(), it->second.c_str());
  } // End of 'for' statement
}

void Params::reset() { 
  loggers::get_instance().log("Params::reset");
  for (iterator it = begin(); it != end(); ++it) {
    it->second.clear();
  } // End of 'for' statement
}