<?php
$author_id = get_the_author_meta( 'ID' );

$json = new stdClass();

$json->{'@context'} = array(
	'https://www.w3.org/ns/activitystreams',
	'https://w3id.org/security/v1',
	array(
		'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
		'sensitive' => 'as:sensitive',
		'movedTo' => array(
			'@id' => 'as:movedTo',
			'@type' => '@id',
		),
		'Hashtag' => 'as:Hashtag',
		'ostatus' => 'http://ostatus.org#',
		'atomUri' => 'ostatus:atomUri',
		'inReplyToAtomUri' => 'ostatus:inReplyToAtomUri',
		'conversation' => 'ostatus:conversation',
		'toot' => 'http://joinmastodon.org/ns#',
		'Emoji' => 'toot:Emoji',
		'focalPoint' => array(
			'@container' => '@list',
			'@id' => 'toot:focalPoint',
		),
		'featured' => array(
			'@id' => 'toot:featured',
			'@type' => '@id',
		),
		'schema' => 'http://schema.org#',
		'PropertyValue' => 'schema:PropertyValue',
		'value' => 'schema:value',
	),
);

$json->id = get_author_posts_url( $author_id );
$json->type = 'Person';
$json->name = get_the_author_meta( 'display_name', $author_id );
$json->summary = wp_strip_all_tags( get_the_author_meta( 'description', $author_id ) );
$json->preferredUsername = get_the_author_meta( 'login', $author_id ); // phpcs:ignore
$json->url = get_author_posts_url( $author_id );
$json->icon = array(
	'type' => 'Image',
	'url'  => get_avatar_url( $author_id, array( 'size' => 120 ) ),
);

if ( has_header_image() ) {
	$json->image = array(
		'type' => 'Image',
		'url'  => get_header_image(),
	);
} else {
	$json->image = array();
}

$json->inbox = get_rest_url( null, "/activitypub/1.0/users/$author_id/inbox" );
$json->outbox = get_rest_url( null, "/activitypub/1.0/users/$author_id/outbox" );
//$json->following = get_rest_url( null, "/activitypub/1.0/users/$author_id/following" );
//$json->followers = get_rest_url( null, "/activitypub/1.0/users/$author_id/followers" );
//$json->featured  = get_rest_url( null, "/activitypub/1.0/users/$author_id/featured" );

//$json->manuallyApprovesFollowers = apply_filters( 'activitypub_manually_approves_followers', __return_false() ); // phpcs:ignore

if ( method_exists( 'Magic_Sig', 'get_public_key' ) ) {
	// phpcs:ignore
	$json->publicKey = array(
		'id' => get_author_posts_url( $author_id ) . '#main-key',
		'owner' => get_author_posts_url( $author_id ),
		'publicKeyPem' => trim( Magic_Sig::get_public_key( $author_id ) ),
	);
}

$json->tag = array();
$json->attachment = array();
//$json->endpoints = array(
//	'sharedInbox' => get_rest_url( null, '/activitypub/1.0/inbox' ),
//);

// filter output
$json = apply_filters( 'activitypub_json_author_array', $json );

/*
 * Action triggerd prior to the ActivityPub profile being created and sent to the client
 */
do_action( 'activitypub_json_author_pre' );

$options = 0;
// JSON_PRETTY_PRINT added in PHP 5.4
if ( get_query_var( 'pretty' ) ) {
	$options |= JSON_PRETTY_PRINT; // phpcs:ignore
}

/*
 * Options to be passed to json_encode()
 *
 * @param int $options The current options flags
 */
$options = apply_filters( 'activitypub_json_author_options', $options );

header( 'Content-Type: application/activity+json' );
echo wp_json_encode( $json, $options );

/*
 * Action triggerd after the ActivityPub profile has been created and sent to the client
 */
do_action( 'activitypub_json_author_post' );