/*
 * toy server
 *
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <pthread.h>
#include <arpa/inet.h>

#include <event2/event.h>
#include <event2/thread.h>

#include <openssl/ssl.h>
#include <openssl/crypto.h>
#include <openssl/err.h>

#include "version.h"
#include "notify.h"
#include "server.h"

#define DEFAULT_CONFIG_FILE "conf/lemu.conf"

#define USAGE_FLAGS_LONG (1<<0)
static void
usage_(char *prog, unsigned int usage_flags)
{
	char *x;

	x = strrchr(prog, '/');
	if (x && *(x + 1)) {
		prog = x + 1;
	}

	printf("Usage: %s [-c config_file]\n", prog);
	if (! (usage_flags & USAGE_FLAGS_LONG)) {
		return;
	}
	printf(
	       "\t-h \t : this help\n"
	       "\t-c config_file\t : loads the specified config file [default: '" DEFAULT_CONFIG_FILE "']\n"
	);
}

int
main(int argc, char **argv)
{
	struct server *server;
	char *conf_file = DEFAULT_CONFIG_FILE;
	int opt;
	int r;

	/* enable threading in libevent before anything tries to use it */
	if ( (r = evthread_use_pthreads()) ) {
		NOTIFY_ERROR("%s:%d", "evthread_use_pthreads", r);
	}

	SSL_load_error_strings();
	SSL_library_init();
	OpenSSL_add_all_algorithms();

	while ( (opt = getopt(argc, argv, "c:h")) != -1 ) {
		switch (opt) {
		case 'c':
			conf_file = optarg;
			break;
		case 'h':
			usage_(argv[0], USAGE_FLAGS_LONG);
			exit(EXIT_SUCCESS);
			break;
		default:
			usage_(argv[0], 0);
			exit(EXIT_FAILURE);
		}
	}

	server = server_new();
	if (!server) {
		NOTIFY_FATAL("server_new");
		exit(EXIT_FAILURE);
	}

	if (server_init(server, conf_file)) {
		NOTIFY_FATAL("error parsing config file '%s'", conf_file);
		exit(EXIT_FAILURE);
	}

	server_free(server);

	exit(EXIT_SUCCESS);
}