sprocket

-module(docs@utils@codeblock).
-compile([no_auto_import, nowarn_unused_vars]).

-export([process_code/1, codeblock/2]).

-spec count_leading_spaces(binary(), integer()) -> integer().
count_leading_spaces(Line, Count) ->
    case gleam@string:pop_grapheme(Line) of
        {ok, {<<" "/utf8>>, Rest}} ->
            count_leading_spaces(Rest, Count + 1);

        _ ->
            Count
    end.

-spec process_code(binary()) -> binary().
process_code(Code) ->
    Code@1 = begin
        _pipe = Code,
        gleam@string:trim(_pipe)
    end,
    Min_leading_spaces = begin
        _pipe@1 = Code@1,
        _pipe@2 = gleam@string:split(_pipe@1, <<"\n"/utf8>>),
        gleam@list:fold(
            _pipe@2,
            0,
            fun(Acc, Line) -> case {Acc, count_leading_spaces(Line, 0)} of
                    {0, Count} ->
                        Count;

                    {_, 0} ->
                        Acc;

                    {_, Count@1} ->
                        gleam@int:min(Acc, Count@1)
                end end
        )
    end,
    _pipe@3 = Code@1,
    _pipe@4 = gleam@string:split(_pipe@3, <<"\n"/utf8>>),
    _pipe@5 = gleam@list:map(
        _pipe@4,
        fun(Line@1) -> case gleam@string:pop_grapheme(Line@1) of
                {ok, {<<" "/utf8>>, _}} ->
                    gleam@string:slice(
                        Line@1,
                        Min_leading_spaces,
                        gleam@string:length(Line@1) - Min_leading_spaces
                    );

                _ ->
                    Line@1
            end end
    ),
    gleam@string:join(_pipe@5, <<"\n"/utf8>>).

-spec codeblock(binary(), binary()) -> sprocket@context:element().
codeblock(Language, Body) ->
    sprocket@html:'div'(
        [sprocket@html@attributes:class(
                <<"not-prose overflow-x-auto text-sm"/utf8>>
            )],
        [sprocket@html:ignored(
                sprocket@html:pre(
                    [],
                    [sprocket@html:code_text(
                            [sprocket@html@attributes:class(
                                    <<<<"language-"/utf8, Language/binary>>/binary,
                                        " rounded-lg"/utf8>>
                                )],
                            process_code(Body)
                        )]
                )
            )]
    ).