%%--------------------------------------------------------------------
%% Copyright (c) 2020-2021 EMQ Technologies Co., Ltd. All Rights Reserved.
%%
%% 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(emqx_lwm2m_app).

-behaviour(application).

-emqx_plugin(protocol).

-export([ start/2
        , stop/1
        , prep_stop/1
        ]).

-include("emqx_lwm2m.hrl").


start(_Type, _Args) ->
    Pid = emqx_lwm2m_sup:start_link(),
    _ = lwm2m_coap_server:start_registry(),
    lwm2m_coap_server_registry:add_handler([<<"rd">>], emqx_lwm2m_coap_resource, undefined),
    emqx_lwm2m_coap_server:start(application:get_all_env(?APP)),
    Pid.

prep_stop(State) ->
    lwm2m_coap_server_registry:remove_handler([<<"rd">>], emqx_lwm2m_coap_resource, undefined),
    emqx_lwm2m_coap_server:stop(application:get_all_env(?APP)),
    State.

stop(_State) ->
    ok.