%%  The contents of this file are subject to the Mozilla Public License
%%  Version 1.1 (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.mozilla.org/MPL/
%%
%%  Software distributed under the License is distributed on an "AS IS"
%%  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%%  the License for the specific language governing rights and
%%  limitations under the License.
%%
%%  The Original Code is RabbitMQ.
%%
%%  The Initial Developer of the Original Code is GoPivotal, Inc.
%%  Copyright (c) 2007-2016 Pivotal Software, Inc.  All rights reserved.
%%

-module('Elixir.RabbitMQ.CLI.Ctl.Commands.DeleteShovelCommand').

-behaviour('Elixir.RabbitMQ.CLI.CommandBehaviour').

-export([
         usage/0,
         validate/2,
         merge_defaults/2,
         banner/2,
         run/2,
         switches/0,
         aliases/0,
         output/2,
         description/0
        ]).


%%----------------------------------------------------------------------------
%% Callbacks
%%----------------------------------------------------------------------------
usage() ->
     <<"delete_shovel [-p <vhost>] <name>">>.

description() ->
    <<"Deletes a Shovel">>.

validate([], _Opts) ->
    {validation_failure, not_enough_args};
validate([_, _ | _], _Opts) ->
    {validation_failure, too_many_args};
validate([_], _Opts) ->
    ok.

merge_defaults(A, Opts) ->
    {A, maps:merge(#{vhost => <<"/">>}, Opts)}.

banner([Name], #{vhost := Vhost}) ->
    erlang:list_to_binary(io_lib:format("Deleting shovel ~s in vhost ~s",
                                        [Name, Vhost])).

run([Name], #{node := Node, vhost := Vhost}) ->
    rabbit_misc:rpc_call(Node, rabbit_runtime_parameters, clear,
                         [Vhost, <<"shovel">>, Name,
                          'Elixir.RabbitMQ.CLI.Core.Helpers':cli_acting_user()]).

switches() ->
    [].

aliases() ->
    [].

output(E, _Opts) ->
    'Elixir.RabbitMQ.CLI.DefaultOutput':output(E).
