/*
 * scid.c -- main scid(8) program file
 *
 * Copyright (c) 2021-2022 David Demelier <markand@malikania.fr>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#include "db.h"
#include "http.h"
#include "log.h"
#include "scid.h"
#include "util.h"

static void
usage(void)
{
	fprintf(stderr, "usage: scid [-d database] [-s sock] [-t themedir] [command]\n");
	exit(1);
}

static void
help(void)
{
	fprintf(stderr, "usage: scid\n");
	fprintf(stderr, "       scid api-get\n");
	fprintf(stderr, "       scid api-reset\n");
	exit(1);
}

static void
cmd_api_get(int argc, char **argv)
{
	char key[SCID_API_KEY_MAX] = {0};

	if (db_key_get(key, sizeof (key)) == 1)
		puts(key);
}

static void
cmd_api_reset(int argc, char **argv)
{
	char key[SCID_API_KEY_MAX] = {0};

	if (db_key_init(key, sizeof (key)) == 0)
		printf("new key: %s\n", key);
}

static const struct {
	const char *name;
	void (*exec)(int, char **);
} commands[] = {
	{ "api-get",    cmd_api_get     },
	{ "api-reset",  cmd_api_reset   },
	{ NULL, NULL }
};

int
main(int argc, char **argv)
{
	int ch;
	void (*run)(void) = &(http_cgi_run);

	while ((ch = util_getopt(argc, argv, "d:ft:")) != -1) {
		switch (ch) {
		case 'd':
			util_strlcpy(scid.dbpath, optarg, sizeof (scid.dbpath));
			break;
		case 'f':
			run = &(http_fcgi_run);
			break;
		case 't':
			util_strlcpy(scid.themedir, optarg, sizeof (scid.themedir));
			break;
		default:
			usage();
			break;
		}
	}

	argc -= optind;
	argv += optind;

	/* Always logs first. */
	scid_init(SCID_INIT_LOG);
	srand(time(NULL));

	/* Check if there is a command provided, otherwise run as HTTP. */
	if (argc == 0) {
		scid_init(SCID_INIT_DATABASE | SCID_INIT_THEME);
		log_info("scid: " VERSION);
		run();
	} else {
		if (strcmp(argv[0], "help") == 0)
			help();

		for (size_t i = 0; commands[i].name; ++i) {
			if (strcmp(commands[i].name, argv[0]) == 0) {
				scid_init(SCID_INIT_DATABASE);
				commands[i].exec(argc, argv);
				goto over;
			}
		}

		usage();
	}

over:
	scid_finish();
}