/**

 *  $Id: config.c 51 2008-01-10 00:19:39Z mbroeker $

 * $URL: http://localhost/svn/c/mcbot/trunk/src/config.c $

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <compat.h>

#include <config.h>

#include "common.h"

enum config_map {

    NICK, PASSWORD, SERVER, PORT, CHANNEL, TOPIC,

};

const

char *CONFIG_OPTIONS[] = {

    "NICK", "PASSWORD", "SERVER", "PORT",

    "CHANNEL", "TOPIC", NULL

};

int config (UC * uc, char *fname)

{

    FILE *f;

    char buffer[DEFAULT_BUF_SIZE];

    char **line;

    char *token;

    char *value;

    enum config_map map = 0;

    if ((f = fopen (fname, "r")) == NULL)

        return -1;

    while (CONFIG_OPTIONS[map] != NULL)

        map++;

    line = calloc ((size_t) (map + 1), sizeof (char *));

    /*

     * We can easily provide default values ...

     */

    uc->nick = uc->pass = uc->server = uc->channel = uc->topic = NULL;

    uc->port = 6667;

    while (!feof (f)) {

        if (fgets (buffer, sizeof (buffer), f) == NULL)

            break;

        token = buffer;

        while (*token == '\t')  /* Eat trailing tabs */

            token++;

        while (*token == ' ')   /* Eat trailing whitespaces */

            token++;

        token = strtok (token, ":");

        if (token != NULL) {

            value = strtok (NULL, "\n");

            map = 0;

            while (CONFIG_OPTIONS[map] != NULL) {

                if (!strcmp (CONFIG_OPTIONS[map], token)) {

                    if (value)

                        line[map] = compat_strdup (value);

                }

                map++;

            }

        }

    }

    if (fclose (f) != 0)

        return -1;

    map = 0;

    while (CONFIG_OPTIONS[map] != NULL) {

        if (line[map] != NULL)

            switch (map) {

            case NICK:

                uc->nick = compat_strdup (line[map]);

                free (line[map]);

                break;

            case PASSWORD:

                uc->pass = compat_strdup (line[map]);

                free (line[map]);

                break;

            case SERVER:

                uc->server = compat_strdup (line[map]);

                free (line[map]);

                break;

            case PORT:

                uc->port = atoi (line[map]);

                free (line[map]);

                break;

            case CHANNEL:

                uc->channel = compat_strdup (line[map]);

                free (line[map]);

                break;

            case TOPIC:

                uc->topic = compat_strdup (line[map]);

                free (line[map]);

                break;

            }

        map++;

    }

    if (line != NULL)

        free (line);

    if (!(uc->nick && uc->server && uc->channel))

        return -2;

    return 0;

}