%% @author Arjan Scherpenisse <arjan@scherpenisse.net>
%% @copyright 2011-2023 Arjan Scherpenisse
%% @doc Mailing status/control page
%% @end

%% Copyright 2011-2023 Arjan Scherpenisse
%%
%% 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(controller_admin_mailing_status).
-moduledoc("
This controller shows the mailing status of a [resource](/id/doc_glossary#term-resource). It lists each mailing list
available in the system, and shows whether or not the current resource has already been sent to the list.

Per mailinglist, it offers the options to send the resource right now, or schedule it for later delivery.

There are also buttons for sending the resource to a test mailing list or to a single email address.

Todo

Extend documentation
").
-author("Arjan Scherpenisse <arjan@scherpenisse.net>").

-export([
    service_available/1,
    resource_exists/1,
    is_authorized/1,
    process/4
]).

-include_lib("zotonic_core/include/zotonic.hrl").

service_available(Context) ->
    Context1 = z_context:set_noindex_header(Context),
    Context2 = z_context:set_nocache_headers(Context1),
    {true, Context2}.

is_authorized(Context) ->
    {Context2, Id} = controller_admin_edit:ensure_id(Context),
    z_controller_helper:is_authorized([ {use, mod_mailinglist}, {view, Id} ], Context2).


resource_exists(Context) ->
    {Context2, Id} = controller_admin_edit:ensure_id(Context),
    case Id of
        undefined -> {false, Context2};
        _N -> {m_rsc:exists(Id, Context2), Context2}
    end.


process(_Method, _AcceptedCT, _ProvidedCT, Context) ->
    Vars = [
        {id, z_context:get(id, Context)}
    ],
    Html = z_template:render({cat, <<"admin_mailing_status.tpl">>}, Vars, Context),
	z_context:output(Html, Context).