-module(clip@flag).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([to_arg_info/1, help/2, new/1, short/2, run/2]).
-export_type([flag/0]).

-opaque flag() :: {flag,
        binary(),
        gleam@option:option(binary()),
        gleam@option:option(binary())}.

-file("/Users/drew/code/clip/src/clip/flag.gleam", 15).
-spec to_arg_info(flag()) -> clip@internal@arg_info:arg_info().
to_arg_info(Flag) ->
    erlang:setelement(
        4,
        clip@internal@arg_info:empty(),
        [{flag_info,
                erlang:element(2, Flag),
                erlang:element(4, Flag),
                erlang:element(3, Flag)}]
    ).

-file("/Users/drew/code/clip/src/clip/flag.gleam", 23).
-spec help(flag(), binary()) -> flag().
help(Flag, Help) ->
    erlang:setelement(3, Flag, {some, Help}).

-file("/Users/drew/code/clip/src/clip/flag.gleam", 29).
-spec new(binary()) -> flag().
new(Name) ->
    {flag, Name, none, none}.

-file("/Users/drew/code/clip/src/clip/flag.gleam", 43).
-spec short(flag(), binary()) -> flag().
short(Flag, Short) ->
    erlang:setelement(4, Flag, {some, Short}).

-file("/Users/drew/code/clip/src/clip/flag.gleam", 49).
-spec run(flag(), list(binary())) -> {ok, {boolean(), list(binary())}} |
    {error, binary()}.
run(Flag, Args) ->
    Long_name = <<"--"/utf8, (erlang:element(2, Flag))/binary>>,
    Short_name = gleam@option:map(
        erlang:element(4, Flag),
        fun(S) -> <<"-"/utf8, S/binary>> end
    ),
    case Args of
        [] ->
            {ok, {false, []}};

        [Head | Rest] when (Long_name =:= Head) orelse (Short_name =:= {some,
            Head}) ->
            {ok, {true, Rest}};

        [Head@1 | Rest@1] ->
            _pipe = run(Flag, Rest@1),
            gleam@result:map(
                _pipe,
                fun(V) ->
                    {erlang:element(1, V), [Head@1 | erlang:element(2, V)]}
                end
            )
    end.