#include OUTPUTTYPE
#include <mist/config.h>
#include <mist/defines.h>
#include <mist/socket.h>
#include <mist/util.h>

int spawnForked(Socket::Connection &S){
  mistOut tmp(S);
  return tmp.run();
}

void handleUSR1(int signum, siginfo_t *sigInfo, void *ignore){
  HIGH_MSG("USR1 received - triggering rolling restart");
  Util::Config::is_restarting = true;
  Util::Config::is_active = false;
}

int main(int argc, char *argv[]){
  Util::redirectLogsIfNeeded();
  Util::Config conf(argv[0]);
  mistOut::init(&conf);
  if (conf.parseArgs(argc, argv)){
    if (conf.getBool("json")){
      mistOut::capa["version"] = PACKAGE_VERSION;
      std::cout << mistOut::capa.toString() << std::endl;
      return -1;
    }
    conf.activate();
    if (mistOut::listenMode()){
      {
        struct sigaction new_action;
        new_action.sa_sigaction = handleUSR1;
        sigemptyset(&new_action.sa_mask);
        new_action.sa_flags = 0;
        sigaction(SIGUSR1, &new_action, NULL);
      }
      mistOut::listener(conf, spawnForked);
      if (conf.is_restarting && Socket::checkTrueSocket(0)){
        INFO_MSG("Reloading input while re-using server socket");
        execvp(argv[0], argv);
        FAIL_MSG("Error reloading: %s", strerror(errno));
      }
    }else{
      Socket::Connection S(fileno(stdout), fileno(stdin));
      mistOut tmp(S);
      return tmp.run();
    }
  }
  return 0;
}