% Copyright 2010 Cloudant
% 
% Licensed under the Apache License, Version 2.0 (the "License"); you may not
% use this file except in compliance with the License. You may obtain a copy of
% the License at
%
%   http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
% License for the specific language governing permissions and limitations under
% the License.

-module(fabric_db_meta).

-export([set_revs_limit/3, set_security/3]).

-include("fabric.hrl").
-include_lib("mem3/include/mem3.hrl").

set_revs_limit(DbName, Limit, Options) ->
    Shards = mem3:shards(DbName),
    Workers = fabric_util:submit_jobs(Shards, set_revs_limit, [Limit, Options]),
    Waiting = length(Workers) - 1,
    case fabric_util:recv(Workers, #shard.ref, fun handle_message/3, Waiting) of
    {ok, ok} ->
        ok;
    Error ->
        Error
    end.

set_security(DbName, SecObj, Options) ->
    Shards = mem3:shards(DbName),
    Workers = fabric_util:submit_jobs(Shards, set_security, [SecObj, Options]),
    Waiting = length(Workers) - 1,
    case fabric_util:recv(Workers, #shard.ref, fun handle_message/3, Waiting) of
    {ok, ok} ->
        ok;
    Error ->
        Error
    end.

handle_message(ok, _, 0) ->
    {stop, ok};
handle_message(ok, _, Waiting) ->
    {ok, Waiting - 1};
handle_message(Error, _, _Waiting) ->
    {error, Error}.