smoother build process

includes/activity/class-base-object.php

@@ -453,6 +453,10 @@ class Base_Object {
 				return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
 			}
 
+			if ( $var === 'skip_next' ) {
+				return; // skip_next should never be retrieved publicly
+			}
+
 			return $this->$var;
 		}
 
@@ -522,6 +526,11 @@ class Base_Object {
 			return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
 		}
 
+		if ( $this->skip_next ) {
+			$this->skip_next = false;
+			return $this;
+		}
+
 		$this->$key = $value;
 
 		return $this;
@@ -675,4 +684,11 @@ class Base_Object {
 
 		return \wp_json_encode( $array, \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT );
 	}
+
+	public function if( bool $b ) {
+		$this->skip_next = ! $b;
+		return $this;
+	}
+
+
 }

includes/transformer/class-base.php

@@ -33,6 +33,13 @@ abstract class Base {
 	 */
 	protected $wp_post;
 
+	/**
+	 * Time format string for date or gmdate
+	 *
+	 * @var string
+	 */
+	protected $timeformat;
+
 	/**
 	 * Get the name used for registering the transformer with the ActivityPub plugin.
 	 *
@@ -68,6 +75,48 @@ abstract class Base {
 	 */
 	abstract public function transform();
 
+	/**
+	 * Retrieves a post meta field for the configured post.
+	 *
+	 * @param string $key     Optional. The meta key to retrieve. By default,
+	 *                        returns data for all keys. Default empty.
+	 * @param bool   $single  Optional. Whether to return a single value.
+	 *                        This parameter has no effect if `$key` is not specified.
+	 *                        Default false.
+	 * @return mixed An array of values if `$single` is false.
+	 *               The value of the meta field if `$single` is true.
+	 *               False for an invalid `$post_id` (non-numeric, zero, or negative value).
+	 *               An empty string if a valid but non-existing post ID is passed.
+	 */
+	public function get_post_meta( string $key = '', $single = false, $default = null ) {
+		// todo test what if not present
+		// empty string or empty array, then return default
+		return \get_post_meta( $this->wp_post->ID, $key, $single );
+	}
+
+	/**
+	 * Retrieves a post meta field for the configured post.
+	 *
+	 * @param string $key     The meta key of the time value to retrieve.
+	 * @return string         formatted time
+	 */
+	public function get_post_meta_time( string $key ) {
+		$time = $this->get_post_meta( $key, true ); // todo what if not exists
+		$time = \strtotime( $time );
+		return \gmdate( $this->timeformat, $time );
+	}
+
+	/**
+	 * Retrieves if comments are enabled of the configured post.
+	 *
+	 * @return bool True if the comments are open.
+	 */
+	public function get_comments_open() {
+		return comments_open( $this->wp_post->ID );
+	}
+
+
+
 	/**
 	 * Getter function for this wp_post.
 	 *
@@ -98,6 +147,56 @@ abstract class Base {
 		$this->wp_post = $wp_post;
 	}
 
+	/**
+	 * Setter for $timeformat.
+	 *
+	 * This configures a timeformat string for converting timestaps into dates
+	 *
+	 * @param string $timeformat The time format string.
+	 * @return void
+	 */
+	public function set_timeformat( string $timeformat ) {
+		$this->timeformat = $timeformat;
+	}
+
+	/**
+	 * Get published time in configured format
+	 *
+	 * This queries the published time from the wp_object and returns it in the configured format
+	 *
+	 * @return string
+	 */
+	public function get_published() {
+		$published = \strtotime( $this->wp_post->post_date_gmt );
+		return \gmdate( 'Y-m-d\TH:i:s\Z', $published );
+	}
+
+
+	/**
+	 * Get updated time in configured format
+	 *
+	 * This queries the update time from the wp_object and returns it in the configured format
+	 *
+	 * @return string
+	 */
+	public function get_updated() {
+		$updated = \strtotime( $this->wp_post->post_modified_gmt );
+		return \gmdate( 'Y-m-d\TH:i:s\Z', $updated );
+	}
+
+	/**
+	 * TODO review and write description
+	 *
+	 * @return array
+	 */
+	public function get_followers_stream() {
+		$path = sprintf( 'users/%d/followers', intval( $this->wp_post->post_author ) );
+		return array(
+			'https://www.w3.org/ns/activitystreams#Public',
+			get_rest_url_by_path( $path ),
+		);
+	}
+
 	/**
 	 * Get the supported WP post types that the transformer can use as an input.
 	 *
@@ -242,7 +341,7 @@ abstract class Base {
 	 * @return string The User-URL.
 	 */
 	protected function get_attributed_to() {
-		if ( is_single_user() ) {
+		if ( is_single_user() ) { // todo what is if this setting gets changed
 			$user = new Blog_User();
 			return $user->get_url();
 		}
@@ -590,7 +689,7 @@ abstract class Base {
 	 *
 	 * @return array the contenmap
 	 */
-	protected function get_content_map() {
+	protected function get_basic_content_map() {
 		return array(
 			$this->get_locale() => $this->get_content(),
 		);