-module(gluid).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([guidv4/0]).

-file("src/gluid.gleam", 4).
-spec split_to_chunks(binary(), integer()) -> list(binary()).
split_to_chunks(Src, Chunk_size) ->
    case string:length(Src) of
        Len when Len >= Chunk_size ->
            Head = gleam@string:slice(Src, 0, Chunk_size),
            Tail = gleam@string:slice(Src, Chunk_size, Len - Chunk_size),
            [Head | split_to_chunks(Tail, Chunk_size)];

        _ ->
            []
    end.

-file("src/gluid.gleam", 16).
-spec format_uuid(binary()) -> binary().
format_uuid(Src) ->
    <<<<<<<<<<<<<<<<(gleam@string:slice(Src, 0, 8))/binary, "-"/utf8>>/binary,
                                (gleam@string:slice(Src, 8, 4))/binary>>/binary,
                            "-"/utf8>>/binary,
                        (gleam@string:slice(Src, 12, 4))/binary>>/binary,
                    "-"/utf8>>/binary,
                (gleam@string:slice(Src, 16, 4))/binary>>/binary,
            "-"/utf8>>/binary,
        (gleam@string:slice(Src, 20, 12))/binary>>.

-file("src/gluid.gleam", 28).
-spec guidv4() -> binary().
guidv4() ->
    A = begin
        _pipe = gleam@int:random(16#FFFFFFFF),
        _pipe@1 = gleam@int:to_base16(_pipe),
        gleam@string:pad_start(_pipe@1, 8, <<"0"/utf8>>)
    end,
    B = begin
        _pipe@2 = gleam@int:random(16#FFFFFFFF),
        _pipe@3 = erlang:'band'(_pipe@2, 16#FFFF0FFF),
        _pipe@4 = erlang:'bor'(_pipe@3, 16#00004000),
        _pipe@5 = gleam@int:to_base16(_pipe@4),
        gleam@string:pad_start(_pipe@5, 8, <<"0"/utf8>>)
    end,
    C = begin
        _pipe@6 = gleam@int:random(16#FFFFFFFF),
        _pipe@7 = erlang:'band'(_pipe@6, 16#3FFFFFFF),
        _pipe@8 = erlang:'bor'(_pipe@7, 16#80000000),
        _pipe@9 = gleam@int:to_base16(_pipe@8),
        gleam@string:pad_start(_pipe@9, 8, <<"0"/utf8>>)
    end,
    D = begin
        _pipe@10 = gleam@int:random(16#FFFFFFFF),
        _pipe@11 = gleam@int:to_base16(_pipe@10),
        gleam@string:pad_start(_pipe@11, 8, <<"0"/utf8>>)
    end,
    Concatened = <<<<<<A/binary, B/binary>>/binary, C/binary>>/binary,
        D/binary>>,
    format_uuid(Concatened).