-module(glats@settings).
-compile([no_auto_import, nowarn_unused_vars]).

-export([new/2, defaults/0, set_host/2, set_port/2, set_ca/2, set_client_cert/3, set_no_tls/1]).
-export_type([settings/0]).

-type settings() :: {settings,
        gleam@option:option(binary()),
        gleam@option:option(integer()),
        gleam@option:option(boolean()),
        gleam@option:option(gleam@map:map_(binary(), binary()))}.

-spec new(binary(), integer()) -> settings().
new(Host, Port) ->
    {settings, {some, Host}, {some, Port}, none, none}.

-spec defaults() -> settings().
defaults() ->
    new(<<"localhost"/utf8>>, 4222).

-spec set_host(settings(), binary()) -> settings().
set_host(Settings, Host) ->
    erlang:setelement(2, Settings, {some, Host}).

-spec set_port(settings(), integer()) -> settings().
set_port(Settings, Port) ->
    erlang:setelement(3, Settings, {some, Port}).

-spec set_ca(settings(), binary()) -> settings().
set_ca(Settings, Cafile) ->
    erlang:setelement(
        5,
        erlang:setelement(4, Settings, {some, true}),
        {some,
            begin
                _pipe = erlang:element(5, Settings),
                _pipe@1 = gleam@option:unwrap(_pipe, gleam@map:new()),
                gleam@map:insert(_pipe@1, <<"cacertfile"/utf8>>, Cafile)
            end}
    ).

-spec set_client_cert(settings(), binary(), binary()) -> settings().
set_client_cert(Settings, Certfile, Keyfile) ->
    erlang:setelement(
        5,
        erlang:setelement(4, Settings, {some, true}),
        {some,
            begin
                _pipe = erlang:element(5, Settings),
                _pipe@1 = gleam@option:unwrap(_pipe, gleam@map:new()),
                _pipe@2 = gleam@map:insert(
                    _pipe@1,
                    <<"certfile"/utf8>>,
                    Certfile
                ),
                gleam@map:insert(_pipe@2, <<"keyfile"/utf8>>, Keyfile)
            end}
    ).

-spec set_no_tls(settings()) -> settings().
set_no_tls(Settings) ->
    erlang:setelement(5, erlang:setelement(4, Settings, {some, false}), none).