#include <stdlib.h>
#include <unistd.h>

#include "pbx.h"
#include "server.h"
#include "debug.h"

static void terminate(int status);

/*
 * "PBX" telephone exchange simulation.
 *
 * Usage: pbx <port>
 */
int main(int argc, char* argv[]){
    // Option processing should be performed here.
    // Option '-p <port>' is required in order to specify the port number
    // on which the server should listen.

    // Perform required initialization of the PBX module.
    debug("Initializing PBX...");
    pbx = pbx_init();

    // TODO: Set up the server socket and enter a loop to accept connections
    // on this socket.  For each connection, a thread should be started to
    // run function pbx_client_service().  In addition, you should install
    // a SIGHUP handler, so that receipt of SIGHUP will perform a clean
    // shutdown of the server.

    fprintf(stderr, "You have to finish implementing main() "
	    "before the PBX server will function.\n");

    terminate(EXIT_FAILURE);
}

/*
 * Function called to cleanly shut down the server.
 */
static void terminate(int status) {
    debug("Shutting down PBX...");
    pbx_shutdown(pbx);
    debug("PBX server terminating");
    exit(status);
}