/*

 * settings.c   -- Configuration stuff

 * 

 * Copyright (C) 2005 Mikael Berthe <bmikael@lists.lilotux.net>

 *

 * This program 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 2 of the License, or (at

 * your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

 * USA

 */

#include <strings.h>

#include <stdlib.h>

#include "settings.h"

static GSList *option;

static GSList *alias;

static GSList *binding;

typedef struct {

  gchar *name;

  gchar *value;

} T_setting;

inline GSList **get_list_ptr(guint type)

{

  if      (type == SETTINGS_TYPE_OPTION)  return &option;

  else if (type == SETTINGS_TYPE_ALIAS)   return &alias;

  else if (type == SETTINGS_TYPE_BINDING) return &binding;

  return NULL;

}

// Return a pointer to the node with the requested key, or NULL if none found

GSList *settings_find(GSList *list, gchar *key)

{

  GSList *ptr;

  if (!list) return NULL;

  for (ptr = list ; ptr; ptr = g_slist_next(ptr))

    if (!strcasecmp(key, ((T_setting*)ptr->data)->name))

      break;

  return ptr;

}

/* -- */

void settings_set(guint type, gchar *key, gchar *value)

{

  GSList **plist;

  GSList *sptr;

  T_setting *setting;

  plist = get_list_ptr(type);

  if (!plist) return;

  sptr = settings_find(*plist, key);

  if (sptr) {

    // The setting has been found.  We will update it or delete it.

    setting = (T_setting*)sptr->data;

    if (setting->value)

      g_free(setting->value);

    if (!value) {

      // Let's remove the setting

      g_free(setting->name);

      *plist = g_slist_delete_link(*plist, sptr);

    } else {

      // Let's update the setting

      setting->value = g_strdup(value);

    }

  } else if (value) {

    setting = g_new(T_setting, 1);

    setting->name  = g_strdup(key);

    setting->value = g_strdup(value);

    *plist = g_slist_append(*plist, setting);

  }

}

void settings_del(guint type, gchar *key)

{

  settings_set(type, key, NULL);

}

gchar *settings_get(guint type, gchar *key)

{

  GSList **plist;

  GSList *sptr;

  T_setting *setting;

  plist = get_list_ptr(type);

  sptr = settings_find(*plist, key);

  if (!sptr) return NULL;

  setting = (T_setting*)sptr->data;

  return setting->value;

}

int settings_get_int(guint type, gchar *key)

{

  gchar *setval = settings_get(type, key);

  if (setval) return atoi(setval);

  return 0;

}