-module(acumen@fetch_authorization).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/acumen/fetch_authorization.gleam").
-export([build/3, response/2]).

-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.

?MODULEDOC(
    " Fetch an ACME authorization.\n"
    "\n"
    " After creating an order, fetch each authorization to see the available\n"
    " challenges for proving domain control.\n"
    "\n"
    " ## Example\n"
    "\n"
    " ```gleam\n"
    " import acumen\n"
    " import acumen/authorization.{type Authorization}\n"
    " import acumen/fetch_authorization\n"
    "\n"
    " let assert Ok(#(resp, ctx)) = acumen.execute(\n"
    "   ctx,\n"
    "   build: fetch_authorization.build(auth_url, _, registered_key),\n"
    "   send: httpc.send,\n"
    " )\n"
    "\n"
    " let assert Ok(auth) = fetch_authorization.response(resp, auth_url)\n"
    " ```\n"
).

-file("src/acumen/fetch_authorization.gleam", 30).
?DOC(" Builds a signed POST-as-GET request to fetch an authorization.\n").
-spec build(acumen@url:url(), acumen:context(), acumen:registered_key()) -> {ok,
        gleam@http@request:request(binary())} |
    {error, acumen:acme_error()}.
build(Url, Context, Key) ->
    acumen:build_fetch(Url, Context, Key).

-file("src/acumen/fetch_authorization.gleam", 39).
?DOC(" Parses an authorization fetch response.\n").
-spec response(gleam@http@response:response(binary()), acumen@url:url()) -> {ok,
        acumen@authorization:authorization()} |
    {error, acumen:acme_error()}.
response(Resp, Url) ->
    case erlang:element(2, Resp) of
        200 ->
            acumen@authorization:parse_authorization_response(Resp, Url);

        _ ->
            {error,
                {invalid_response,
                    acumen@internal@utils:unexpected_status_message(
                        erlang:element(2, Resp)
                    )}}
    end.