%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2026 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. All rights reserved.
%%

-module(rabbit_mgmt_wm_vhost_restart).

-export([init/2, resource_exists/2, is_authorized/2,
         allowed_methods/2, content_types_accepted/2, accept_content/2]).
-export([variances/2]).

-include_lib("rabbitmq_management_agent/include/rabbit_mgmt_records.hrl").
%%--------------------------------------------------------------------

init(Req, _State) ->
    {cowboy_rest, rabbit_mgmt_headers:set_common_permission_headers(Req, ?MODULE), #context{}}.

variances(Req, Context) ->
    {[<<"accept-encoding">>, <<"origin">>], Req, Context}.

allowed_methods(ReqData, Context) ->
    {[<<"POST">>, <<"OPTIONS">>], ReqData, Context}.

resource_exists(ReqData, Context) ->
    VHost = id(ReqData),
    {rabbit_vhost:exists(VHost), ReqData, Context}.

content_types_accepted(ReqData, Context) ->
   {[{'*', accept_content}], ReqData, Context}.

accept_content(ReqData, Context) ->
    VHost = id(ReqData),
    NodeB = rabbit_mgmt_util:id(node, ReqData),
    try binary_to_existing_atom(NodeB, utf8) of
        Node ->
            case rabbit_vhost_sup_sup:start_vhost(VHost, Node) of
                {ok, _} ->
                    {true, ReqData, Context};
                {error, {already_started, _}} ->
                    {true, ReqData, Context};
                {error, Err} ->
                    Message = io_lib:format("Request to node ~ts failed with ~tp",
                                            [Node, Err]),
                    rabbit_mgmt_util:bad_request(list_to_binary(Message), ReqData, Context)
            end
    catch
        error:badarg ->
            rabbit_mgmt_util:bad_request(
              <<"Unknown node: ", NodeB/binary>>, ReqData, Context)
    end.

is_authorized(ReqData, Context) ->
    rabbit_mgmt_util:is_authorized_admin(ReqData, Context).

%%--------------------------------------------------------------------

id(ReqData) ->
    rabbit_mgmt_util:id(vhost, ReqData).
