/* Copyright (c) 2018, SequoiaDB and/or its affiliates. All rights reserved.

  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; version 2 of the License.

  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 St, Fifth Floor, Boston, MA 02110-1301  USA */

#ifndef SDB_CONDITION__H
#define SDB_CONDITION__H

#include "sdb_item.h"

enum SDB_COND_STATUS {
  SDB_COND_SUPPORTED = 1,
  SDB_COND_PART_SUPPORTED,
  SDB_COND_BEFORE_SUPPORTED,
  SDB_COND_UNSUPPORTED,

  SDB_COND_UNKNOWN = 65535
};

class Sdb_cond_ctx : public Sql_alloc {
 public:
  Sdb_cond_ctx();

  ~Sdb_cond_ctx();

  void push(Item *item);

  void pop();

  void pop_all();

  void clear();

  Sdb_item *create_sdb_item(Item_func *cond_item);

  int to_bson(bson::BSONObj &obj);

  void update_stat(int rc);

  bool keep_on();

  Sdb_item *cur_item;
  List<Sdb_item> item_list;
  SDB_COND_STATUS status;
};

void sdb_parse_condtion(const Item *cond_item, Sdb_cond_ctx *sdb_cond);

#endif