%%--------------------------------------------------------------------
%% Copyright (c) 2018-2022 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_mqtt_caps_SUITE).

-compile(export_all).
-compile(nowarn_export_all).

-include_lib("emqx/include/emqx_mqtt.hrl").
-include_lib("eunit/include/eunit.hrl").

all() -> emqx_ct:all(?MODULE).

t_check_pub(_) ->
    PubCaps = #{max_qos_allowed => ?QOS_1,
                retain_available => false
               },
    emqx_zone:set_env(zone, '$mqtt_pub_caps', PubCaps),
    timer:sleep(50),
    ok = emqx_mqtt_caps:check_pub(zone, #{qos => ?QOS_1,
                                          retain => false}),
    PubFlags1 = #{qos => ?QOS_2, retain => false},
    ?assertEqual({error, ?RC_QOS_NOT_SUPPORTED},
                 emqx_mqtt_caps:check_pub(zone, PubFlags1)),
    PubFlags2 = #{qos => ?QOS_1, retain => true},
    ?assertEqual({error, ?RC_RETAIN_NOT_SUPPORTED},
                 emqx_mqtt_caps:check_pub(zone, PubFlags2)),
    emqx_zone:unset_env(zone, '$mqtt_pub_caps').

t_check_sub(_) ->
    SubOpts = #{rh  => 0,
                rap => 0,
                nl  => 0,
                qos => ?QOS_2
               },
    SubCaps = #{max_topic_levels => 2,
                max_qos_allowed => ?QOS_2,
                shared_subscription => false,
                wildcard_subscription => false
               },
    emqx_zone:set_env(zone, '$mqtt_sub_caps', SubCaps),
    try
        ClientInfo = #{zone => zone},
        ok = emqx_mqtt_caps:check_sub(ClientInfo, <<"topic">>, SubOpts),
        ?assertEqual({error, ?RC_TOPIC_FILTER_INVALID},
                    emqx_mqtt_caps:check_sub(ClientInfo, <<"a/b/c/d">>, SubOpts)),
        ?assertEqual({error, ?RC_WILDCARD_SUBSCRIPTIONS_NOT_SUPPORTED},
                    emqx_mqtt_caps:check_sub(ClientInfo, <<"+/#">>, SubOpts)),
        ?assertEqual({error, ?RC_SHARED_SUBSCRIPTIONS_NOT_SUPPORTED},
                    emqx_mqtt_caps:check_sub(ClientInfo, <<"topic">>, SubOpts#{share => true}))
    after
        emqx_zone:unset_env(zone, '$mqtt_pub_caps')
    end.