/*
   Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
   This file is part of GlusterFS.

   This file is licensed to you under your choice of the GNU Lesser
   General Public License, version 3 or any later version (LGPLv3 or
   later), or the GNU General Public License, version 2 (GPLv2), in all
   cases as published by the Free Software Foundation.
*/

#include <glusterfs/xlator.h>
#include <glusterfs/defaults.h>

#include "meta-mem-types.h"
#include "meta.h"
#include "meta-hooks.h"

static struct meta_dirent graphs_dir_dirents[] = {
    DOT_DOTDOT,

    {
        .name = "active",
        .type = IA_IFLNK,
        .hook = meta_active_link_hook,
    },
    {.name = NULL}};

static int
graphs_dir_fill(xlator_t *this, inode_t *dir, struct meta_dirent **dp)
{
    glusterfs_graph_t *graph = NULL;
    int graphs_count = 0;
    int i = 0;
    struct meta_dirent *dirents = NULL;

    list_for_each_entry(graph, &this->ctx->graphs, list) { graphs_count++; }

    dirents = GF_CALLOC(sizeof(*dirents), graphs_count + 3,
                        gf_meta_mt_dirents_t);
    if (!dirents)
        return -1;

    i = 0;
    list_for_each_entry(graph, &this->ctx->graphs, list)
    {
        dirents[i].name = gf_strdup(graph->graph_uuid);
        dirents[i].type = IA_IFDIR;
        dirents[i].hook = meta_graph_dir_hook;
        i++;
    }

    *dp = dirents;

    return i;
}

struct meta_ops graphs_dir_ops = {.fixed_dirents = graphs_dir_dirents,
                                  .dir_fill = graphs_dir_fill};

int
meta_graphs_dir_hook(call_frame_t *frame, xlator_t *this, loc_t *loc,
                     dict_t *xdata)
{
    meta_ops_set(loc->inode, this, &graphs_dir_ops);

    return 0;
}