%%--------------------------------------------------------------------
%% 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_mgmt_api_status).
%% API
-behaviour(minirest_api).

-export([api_spec/0]).

-export([running_status/2]).

api_spec() ->
    {[status_api()], []}.

status_api() ->
    Path = "/status",
    Metadata = #{
        get => #{
            security => [],
            responses => #{<<"200">> => #{description => <<"running">>}}
        }
    },
    {Path, Metadata, running_status}.

running_status(get, _Params) ->
    {InternalStatus, _ProvidedStatus} = init:get_status(),
    AppStatus =
        case lists:keysearch(emqx, 1, application:which_applications()) of
            false         -> not_running;
            {value, _Val} -> running
        end,
    Status = io_lib:format("Node ~ts is ~ts~nemqx is ~ts", [node(), InternalStatus, AppStatus]),
    Body = list_to_binary(Status),
    {200, #{<<"content-type">> => <<"text/plain">>}, Body}.