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

-export([hyphenate/2, hyphenate_delim/3, hyphenator/1]).
-export_type([hyphenator/0]).

-opaque hyphenator() :: {hyphenator,
        binary(),
        hyphenation@internal@patterns:patterns(),
        integer(),
        integer()}.

-spec merge_two(list(GFH), fun((GFH, GFH) -> GFH)) -> list(GFH).
merge_two(Ls, F) ->
    case Ls of
        [X, Y | Xs] ->
            [F(X, Y) | Xs];

        _ ->
            Ls
    end.

-spec hyphenate(binary(), hyphenator()) -> list(binary()).
hyphenate(S, H) ->
    Hyphenated = hyphenation@internal@patterns:process(S, erlang:element(3, H)),
    Is_min_left = case Hyphenated of
        [] ->
            true;

        [X | _] ->
            gleam@string:length(X) < erlang:element(4, H)
    end,
    Hyphenated@1 = begin
        _pipe = case Is_min_left of
            true ->
                merge_two(Hyphenated, fun gleam@string:append/2);

            false ->
                Hyphenated
        end,
        gleam@list:reverse(_pipe)
    end,
    Is_min_right = case Hyphenated@1 of
        [] ->
            true;

        [X@1 | _] ->
            gleam@string:length(X@1) < erlang:element(5, H)
    end,
    Hyphenated@2 = begin
        _pipe@1 = case Is_min_right of
            true ->
                merge_two(
                    Hyphenated@1,
                    fun(X@2, Y) -> gleam@string:append(Y, X@2) end
                );

            false ->
                Hyphenated@1
        end,
        gleam@list:reverse(_pipe@1)
    end,
    Hyphenated@2.

-spec hyphenate_delim(binary(), hyphenator(), binary()) -> binary().
hyphenate_delim(S, H, Delim) ->
    gleam@string:join(hyphenate(S, H), Delim).

-spec hyphenator(hyphenation@language:language()) -> hyphenator().
hyphenator(L) ->
    Md = hyphenation@internal@metadata:metadata(L),
    Patterns = hyphenation@language:patterns(L),
    {hyphenator,
        erlang:element(2, Md),
        Patterns,
        erlang:element(3, Md),
        erlang:element(4, Md)}.