<?php

require_once($_SERVER['DOCUMENT_ROOT'] . '/config.php');

$resource = $_GET['resource'];

$canonical_username = substr($resource, offset: 5);	// Drop the 'acct:'
$username_parts = explode(separator: '@', string: $canonical_username, limit: 2);

$local_username = $username_parts[0];
$given_domain = $username_parts[1];

// We're only returning results at our domain
if ($given_domain !== HOSTAS_DOMAIN) {
	http_response_code(404);
	die();
}

$conn = new SQLite3(HOSTAS_DATABASE_PATH);

$people_query = $conn->prepare("
	select * from actor
		join object on actor.objectId = object.id
		where actor.preferredUsername = :preferredUsername
");

$people_query->bindValue(':preferredUsername', $local_username);
$people_query_results = $people_query->execute();
$person = $people_query_results->fetchArray();

if (!$person) {
	http_response_code(404);
	die();
}


header('Content-Type: application/jrd+json; charset=utf8');
echo json_encode(array(
	'subject' => "acct:$local_username@$given_domain",
	'links' => array(
		array(
			'rel'=> 'self',
			'href'=> $person['url'],
			'type'=> 'application/activity+json'
		)
	)
));

$conn->close();