% 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(aegis_key_manager).

-type key_fun() :: fun(() -> binary()).

-callback init_db(
    Db :: #{},
    DbOptions :: list()) -> {ok, key_fun()} | false.


-callback open_db(Db :: #{}) -> {ok, key_fun()} | false.


-callback get_db_info(Db :: #{}) -> list().


-optional_callbacks([
    get_db_info/1
]).