/*
 * Copyright (C) 2021  P. J. McDermott
 *
 * This file is part of Dodge Balls
 *
 * Dodge Balls is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Dodge Balls is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Dodge Balls.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <dirent.h>
#include <stdlib.h>
#include <string.h>
#include "game.h"
#include "output.h"

struct db_game {
	char *id;
	char *name;
	char *desc;
};

static int
_db_game_is_dir(const struct dirent *entry)
{
	return (entry->d_type == DT_DIR && entry->d_name[0] != '.');
}

int
db_games_find(const char *games_dir, struct db_game ***games)
{
	struct dirent **entries;
	int             n;
	int             i;

	n = scandir(games_dir, &entries, &_db_game_is_dir, alphasort);
	if (n < 0) {
		db_err("Failed to scan games directory");
		return -1;
	} else if (n == 0) {
		return 0;
	}

	*games = calloc(n, sizeof(**games));
	if (*games == NULL) {
		db_err("Failed to allocate memory");
		return -1;
	}

	for (i = 0; i < n; ++i) {
		(*games)[i] = calloc(1, sizeof(***games));
		if ((*games)[i] == NULL) {
			db_err("Failed to allocate memory");
			while (--i >= 0) {
				db_game_free((*games)[i]);
			}
			free(*games);
			return -1;
		}
		(*games)[i]->id = strdup(entries[i]->d_name);
		free(entries[i]);
	}

	free(entries);

	return n;
}

const char *
db_game_get_name(struct db_game *game)
{
	return game->name;
}

const char *
db_game_get_desc(struct db_game *game)
{
	return game->desc;
}

void
db_game_free(struct db_game *game)
{
	if (game->id) {
		free(game->id);
	}
	if (game->name) {
		free(game->name);
	}
	if (game->desc) {
		free(game->desc);
	}
	free(game);
}