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

-export([connect/1, publish/3, publish_message/2, request/3, handle_subscription/3, new_settings/2, default_settings/0, with_host/2, with_port/2, with_ca/2, with_client_cert/3, with_no_tls/1]).

-spec connect(glats@connection:settings()) -> {ok,
        gleam@erlang@process:subject(glats@connection:command())} |
    {error, gleam@otp@actor:start_error()}.
connect(Settings) ->
    glats@connection:start(Settings).

-spec publish(
    gleam@erlang@process:subject(glats@connection:command()),
    binary(),
    binary()
) -> {ok, nil} | {error, binary()}.
publish(Conn, Subject, Message) ->
    glats@connection:publish(Conn, Subject, Message).

-spec publish_message(
    gleam@erlang@process:subject(glats@connection:command()),
    glats@message:message()
) -> {ok, nil} | {error, binary()}.
publish_message(Conn, Message) ->
    glats@connection:publish_message(Conn, Message).

-spec request(
    gleam@erlang@process:subject(glats@connection:command()),
    binary(),
    binary()
) -> {ok, glats@message:message()} | {error, glats@connection:server_error()}.
request(Conn, Subject, Message) ->
    glats@connection:request(Conn, Subject, Message).

-spec handle_subscription(
    gleam@erlang@process:subject(glats@connection:command()),
    binary(),
    fun((glats@message:message(), gleam@erlang@process:subject(glats@connection:command())) -> {ok,
            nil} |
        {error, binary()})
) -> {ok, gleam@erlang@process:subject(glats@message:message())} |
    {error, gleam@otp@actor:start_error()}.
handle_subscription(Conn, Subject, Handler) ->
    glats@handler:handle_subscription(Conn, Subject, Handler).

-spec new_settings(binary(), integer()) -> glats@connection:settings().
new_settings(Host, Port) ->
    {settings, {some, Host}, {some, Port}, none, none}.

-spec default_settings() -> glats@connection:settings().
default_settings() ->
    new_settings(<<"localhost"/utf8>>, 4222).

-spec with_host(glats@connection:settings(), binary()) -> glats@connection:settings().
with_host(Old, Host) ->
    erlang:setelement(2, Old, {some, Host}).

-spec with_port(glats@connection:settings(), integer()) -> glats@connection:settings().
with_port(Old, Port) ->
    erlang:setelement(3, Old, {some, Port}).

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

-spec with_client_cert(glats@connection:settings(), binary(), binary()) -> glats@connection:settings().
with_client_cert(Old, Certfile, Keyfile) ->
    erlang:setelement(
        5,
        erlang:setelement(4, Old, {some, true}),
        {some,
            begin
                _pipe = erlang:element(5, Old),
                _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 with_no_tls(glats@connection:settings()) -> glats@connection:settings().
with_no_tls(Old) ->
    erlang:setelement(5, erlang:setelement(4, Old, {some, false}), none).