-module(glint@style).
-compile(no_auto_import).

-export([lookups/1, heading/3]).
-export_type([pretty_help/0]).

-type pretty_help() :: {pretty_help,
        list(binary()),
        list(binary()),
        list(binary())}.

-spec lookups(pretty_help()) -> list({list(binary()),
    list({binary(), list(binary())})}).
lookups(Pretty) ->
    [{[<<"color"/utf8>>, <<"background"/utf8>>],
            [{<<"usage"/utf8>>, erlang:element(2, Pretty)},
                {<<"flags"/utf8>>, erlang:element(3, Pretty)},
                {<<"subcommands"/utf8>>, erlang:element(4, Pretty)}]}].

-spec heading(
    list({list(binary()), list({binary(), list(binary())})}),
    binary(),
    binary()
) -> binary().
heading(Lookups, Heading, Colour) ->
    _pipe = shellout:display(
        [<<"bold"/utf8>>, <<"italic"/utf8>>, <<"underline"/utf8>>]
    ),
    _pipe@1 = gleam@map:merge(_pipe, shellout:color([Colour])),
    shellout:style(Heading, _pipe@1, Lookups).