/*

    Copyright (C) 2011  ABRT Team

    Copyright (C) 2011  RedHat inc.

    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.,

    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

*/

#include "internal_libreport.h"

GList *get_file_list(const char *path, const char *ext_filter)

{

    /* Load .$ext files */

    DIR *dir;

    dir = opendir(path);

    if (!dir)

        return NULL;

    GList *files = NULL;

    struct dirent *dent;

    while ((dent = readdir(dir)) != NULL)

    {

        /* skip . and .. */

        if (strcmp(dent->d_name, ".") == 0 || strcmp(dent->d_name, "..") == 0)

            continue;

        char *fullname = concat_path_file(path, dent->d_name);

        char *ext = NULL;

        if (ext_filter)

        {

            ext = strrchr(dent->d_name, '.');

            if (!ext)

                continue;

            if (ext_filter && strcmp(ext + 1, ext_filter) != 0)

                continue;

            *ext = '\0';

        }

//TODO: get rid of special handling of symlinks?

        struct stat buf;

        if (0 != lstat(fullname, &buf))

            goto next;

        if (S_ISLNK(buf.st_mode))

        {

            GError *error = NULL;

            gchar *link = g_file_read_link(fullname, &error);

            if (error != NULL)

            {

                error_msg("Error reading symlink '%s': %s", fullname, error->message);

                goto next;

            }

            gchar *target = g_path_get_basename(link);

            log_debug("Symlink '%s' is pointing to '%s'", link, target);

            if (ext_filter)

            {

                char *ext = strrchr(target, '.');

                if (!ext || 0 != strcmp(ext + 1, ext_filter))

                {

                    error_msg("Invalid event symlink '%s': expected it to"

                              " point to another '%s' file", fullname, ext_filter);

                    goto next;

                }

                *ext = '\0';

            }

            free(fullname);

            fullname = concat_path_file(path, target);

            files = g_list_prepend(files, new_file_obj(fullname, target));

            g_free(link);

            g_free(target);

            goto next;

        }

        file_obj_t *file = new_file_obj(fullname, dent->d_name);

        files = g_list_prepend(files, file);

 next:

        free(fullname);

    }

    closedir(dir);

    return files;

}

void free_file_list(GList *filelist)

{

    g_list_free_full(filelist, (GDestroyNotify)free_file_obj);

}