/*
   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 xlator_dir_dirents[] = {
    DOT_DOTDOT,

    {
        .name = "view",
        .type = IA_IFDIR,
        .hook = meta_view_dir_hook,
    },
    {
        .name = "type",
        .type = IA_IFREG,
        .hook = meta_type_file_hook,
    },
    {
        .name = "name",
        .type = IA_IFREG,
        .hook = meta_name_file_hook,
    },
    {
        .name = "subvolumes",
        .type = IA_IFDIR,
        .hook = meta_subvolumes_dir_hook,
    },
    {
        .name = "options",
        .type = IA_IFDIR,
        .hook = meta_options_dir_hook,
    },
    {
        .name = "private",
        .type = IA_IFREG,
        .hook = meta_private_file_hook,
    },
    {
        .name = "history",
        .type = IA_IFREG,
        .hook = meta_history_file_hook,
    },
    {
        .name = "meminfo",
        .type = IA_IFREG,
        .hook = meta_meminfo_file_hook,
    },
    {
        .name = "profile",
        .type = IA_IFREG,
        .hook = meta_profile_file_hook,
    },
    {.name = NULL}};

static struct meta_ops xlator_dir_ops = {.fixed_dirents = xlator_dir_dirents};

int
meta_xlator_dir_hook(call_frame_t *frame, xlator_t *this, loc_t *loc,
                     dict_t *xdata)
{
    glusterfs_graph_t *graph = NULL;
    xlator_t *xl = NULL;

    graph = meta_ctx_get(loc->parent, this);

    xl = xlator_search_by_name(graph->first, loc->name);

    meta_ctx_set(loc->inode, this, xl);

    meta_ops_set(loc->inode, this, &xlator_dir_ops);

    return 0;
}

int
meta_root_hook(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
{
    meta_ctx_set(loc->inode, this, this->ctx->root);

    meta_ops_set(loc->inode, this, &xlator_dir_ops);

    return 0;
}
