-module(sqlode@internal@formatter).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/sqlode/internal/formatter.gleam").
-export([error_to_string/1, format_files/1]).
-export_type([format_error/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(false).

-type format_error() :: gleam_not_found | {format_failed, integer(), binary()}.

-file("src/sqlode/internal/formatter.gleam", 59).
?DOC(false).
-spec error_to_string(format_error()) -> binary().
error_to_string(Error) ->
    case Error of
        gleam_not_found ->
            <<"gleam command not found in PATH. Install Gleam to format generated code."/utf8>>;

        {format_failed, Code, Output} ->
            Trimmed = gleam@string:trim(Output),
            case Trimmed of
                <<""/utf8>> ->
                    <<"gleam format failed with exit code "/utf8,
                        (erlang:integer_to_binary(Code))/binary>>;

                _ ->
                    <<<<<<"gleam format failed with exit code "/utf8,
                                (erlang:integer_to_binary(Code))/binary>>/binary,
                            ": "/utf8>>/binary,
                        Trimmed/binary>>
            end
    end.

-file("src/sqlode/internal/formatter.gleam", 35).
?DOC(false).
-spec format_files(list(binary())) -> {ok, nil} | {error, format_error()}.
format_files(Files) ->
    case Files of
        [] ->
            {ok, nil};

        _ ->
            case sqlode_ffi:find_executable(<<"gleam"/utf8>>) of
                {error, nil} ->
                    {error, gleam_not_found};

                {ok, Gleam_path} ->
                    {Exit_code, Output} = sqlode_ffi:run_executable(
                        Gleam_path,
                        [<<"format"/utf8>> | Files]
                    ),
                    case Exit_code of
                        0 ->
                            {ok, nil};

                        Code ->
                            {error, {format_failed, Code, Output}}
                    end
            end
    end.