-module(libero@cli).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/libero/cli.gleam").
-export([parse_command/0]).
-export_type([command/0]).

-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.

?MODULEDOC(
    " CLI command router for the Libero framework.\n"
    "\n"
    " Usage: gleam run -m libero -- <command> [args]\n"
    " Commands: new, add, gen, build\n"
).

-type command() :: {new, binary()} |
    {add, binary(), binary()} |
    gen |
    build |
    unknown.

-file("src/libero/cli.gleam", 18).
?DOC(" Parse CLI arguments into a Command.\n").
-spec parse_command() -> command().
parse_command() ->
    Args = erlang:element(4, argv:load()),
    case Args of
        [<<"new"/utf8>>, Name | _] ->
            {new, Name};

        [<<"add"/utf8>>, Name@1, <<"--target"/utf8>>, Target | _] ->
            {add, Name@1, Target};

        [<<"add"/utf8>>, _ | _] ->
            gleam_stdlib:println_error(<<"error: --target is required"/utf8>>),
            gleam_stdlib:println_error(
                <<"  Usage: gleam run -m libero -- add <name> --target <javascript|erlang>"/utf8>>
            ),
            unknown;

        [<<"gen"/utf8>> | _] ->
            gen;

        [<<"build"/utf8>> | _] ->
            build;

        _ ->
            unknown
    end.