libero

-module(libero@cli@helpers).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/libero/cli/helpers.gleam").
-export([write_formatted/2, map_err/2]).

-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(" Shared helpers for CLI scaffold commands (new, add).\n").

-file("src/libero/cli/helpers.gleam", 8).
?DOC(" Write a file, running `gleam format` on .gleam files first.\n").
-spec write_formatted(binary(), binary()) -> {ok, nil} |
    {error, simplifile:file_error()}.
write_formatted(Path, Content) ->
    Formatted = case gleam_stdlib:string_ends_with(Path, <<".gleam"/utf8>>) of
        true ->
            libero@format:format_gleam(Content);

        false ->
            Content
    end,
    simplifile:write(Path, Formatted).

-file("src/libero/cli/helpers.gleam", 22).
?DOC(
    " Map a simplifile.FileError to a user-facing String error, threading\n"
    " the success value through a continuation.\n"
    " nolint: stringly_typed_error -- CLI module, String errors are user-facing messages\n"
).
-spec map_err(
    {ok, UKG} | {error, simplifile:file_error()},
    fun((UKG) -> {ok, nil} | {error, binary()})
) -> {ok, nil} | {error, binary()}.
map_err(Result, Next) ->
    case Result of
        {ok, Value} ->
            Next(Value);

        {error, Err} ->
            {error, simplifile:describe_error(Err)}
    end.