-module(url_join@merge).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/url_join/merge.gleam").
-export([merge_leading_parts/2]).

-file("src/url_join/merge.gleam", 4).
-spec merge_leading_parts(binary(), list(binary())) -> list(binary()).
merge_leading_parts(First, Rest) ->
    case Rest of
        [] ->
            [url_join@protocol:normalize(First)];

        [Next | Tail] ->
            case {url_join@protocol:is_plain_protocol(First),
                First =:= <<"/"/utf8>>} of
                {true, _} ->
                    merge_leading_parts(<<First/binary, Next/binary>>, Tail);

                {_, true} ->
                    merge_leading_parts(<<"/"/utf8, Next/binary>>, Tail);

                {_, _} ->
                    [url_join@protocol:normalize(First) |
                        gleam@list:map(Rest, fun(P) -> P end)]
            end
    end.