/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
 * All rights reserved.
 *
 * Copyright (c) 2011 The FreeBSD Foundation
 *
 * Portions of this software were developed by David Chisnall
 * under sponsorship from the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <stddef.h>

#include "ldpart.h"
#include "lmessages.h"

#define LCMESSAGES_SIZE_FULL (sizeof(struct lc_messages_T) / sizeof(char *))
#define LCMESSAGES_SIZE_MIN \
                (offsetof(struct lc_messages_T, yesstr) / sizeof(char *))

struct xlocale_messages {
        struct xlocale_component header;
        char *buffer;
        struct lc_messages_T locale;
};

struct xlocale_messages __xlocale_global_messages;

static char empty[] = "";

static const struct lc_messages_T _C_messages_locale = {
        "^[yY]" ,       /* yesexpr */
        "^[nN]" ,       /* noexpr */
        "yes" ,         /* yesstr */
        "no"            /* nostr */
};

static void
destruct_messages(void *v)
{
        struct xlocale_messages *l = v;
        if (l->buffer)
                free(l->buffer);
        free(l);
}

static int
messages_load_locale(struct xlocale_messages *loc, int *using_locale,
    const char *name)
{
        int ret;
        struct lc_messages_T *l = &loc->locale;

        ret = __part_load_locale(name, using_locale,
                  &loc->buffer, "LC_MESSAGES",
                  LCMESSAGES_SIZE_FULL, LCMESSAGES_SIZE_MIN,
                  (const char **)l);
        if (ret == _LDP_LOADED) {
                if (l->yesstr == NULL)
                        l->yesstr = empty;
                if (l->nostr == NULL)
                        l->nostr = empty;
        }
        return (ret);
}

int
__messages_load_locale(const char *name)
{
        return (messages_load_locale(&__xlocale_global_messages,
            &__xlocale_global_locale.using_messages_locale, name));
}

void *
__messages_load(const char *name, locale_t l)
{
        struct xlocale_messages *new = calloc(sizeof(struct xlocale_messages),
            1);
        if (new == NULL)
                return (NULL);
        new->header.header.destructor = destruct_messages;
        if (messages_load_locale(new, &l->using_messages_locale, name) ==
            _LDP_ERROR) {
                xlocale_release(new);
                return (NULL);
        }
        return (new);
}

struct lc_messages_T *
__get_current_messages_locale(locale_t loc)
{
        return (loc->using_messages_locale ? &((struct xlocale_messages *)
            loc->components[XLC_MESSAGES])->locale :
            (struct lc_messages_T *)&_C_messages_locale);
}

#ifdef LOCALE_DEBUG
void
msgdebug(void) {
printf( "yesexpr = %s\n"
        "noexpr = %s\n"
        "yesstr = %s\n"
        "nostr = %s\n",
        _messages_locale.yesexpr,
        _messages_locale.noexpr,
        _messages_locale.yesstr,
        _messages_locale.nostr
);
}
#endif /* LOCALE_DEBUG */