-module(multipartkit@part).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/multipartkit/part.gleam").
-export([header/2, headers/2]).
-export_type([part/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.

-type part() :: {part,
        list({binary(), binary()}),
        gleam@option:option(binary()),
        gleam@option:option(binary()),
        gleam@option:option(binary()),
        bitstring()}.

-file("src/multipartkit/part.gleam", 47).
-spec find_header(list({binary(), binary()}), binary()) -> list(binary()).
find_header(Headers, Name) ->
    gleam@list:filter_map(
        Headers,
        fun(Entry) ->
            case multipartkit@internal@text:equals_ci(
                erlang:element(1, Entry),
                Name
            ) of
                true ->
                    {ok, erlang:element(2, Entry)};

                false ->
                    {error, nil}
            end
        end
    ).

-file("src/multipartkit/part.gleam", 34).
?DOC(
    " Return the first header value whose name matches `name` ASCII\n"
    " case-insensitively.\n"
).
-spec header(part(), binary()) -> gleam@option:option(binary()).
header(Part, Name) ->
    case find_header(erlang:element(2, Part), Name) of
        [First | _] ->
            {some, First};

        [] ->
            none
    end.

-file("src/multipartkit/part.gleam", 43).
?DOC(
    " Return all header values whose name matches `name` ASCII case-insensitively\n"
    " in the order they appear in `part.headers`.\n"
).
-spec headers(part(), binary()) -> list(binary()).
headers(Part, Name) ->
    find_header(erlang:element(2, Part), Name).