You've already forked wp-fedistream
feat: Initial release v0.1.0
WP FediStream - Stream music over ActivityPub Features: - Custom post types: Artist, Album, Track, Playlist - Custom taxonomies: Genre, Mood, License - User roles: Artist, Label - Admin dashboard with statistics - Frontend templates and shortcodes - Audio player with queue management - ActivityPub integration with actor support - WooCommerce product types for albums/tracks - User library with favorites and history - Notification system (in-app and email) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
433
includes/ActivityPub/AlbumTransformer.php
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433
includes/ActivityPub/AlbumTransformer.php
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<?php
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/**
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* Album Transformer for ActivityPub.
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*
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* @package WP_FediStream
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*/
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namespace WP_FediStream\ActivityPub;
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// Prevent direct file access.
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* Transforms Album posts to ActivityPub Collection objects.
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*/
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class AlbumTransformer {
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/**
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* The album post.
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*
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* @var \WP_Post
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*/
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protected \WP_Post $post;
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/**
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* Constructor.
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*
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* @param \WP_Post $post The album post.
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*/
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public function __construct( \WP_Post $post ) {
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$this->post = $post;
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}
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/**
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* Get the ActivityPub object type.
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*
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* @return string
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*/
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public function get_type(): string {
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return 'Collection';
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}
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/**
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* Get the object ID (URI).
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*
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* @return string
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*/
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public function get_id(): string {
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return get_permalink( $this->post->ID );
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}
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/**
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* Get the object name (title).
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*
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* @return string
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*/
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public function get_name(): string {
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$album_type = get_post_meta( $this->post->ID, '_fedistream_album_type', true );
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$type_label = '';
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switch ( $album_type ) {
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case 'ep':
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$type_label = ' (EP)';
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break;
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case 'single':
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$type_label = ' (Single)';
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break;
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case 'compilation':
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$type_label = ' (Compilation)';
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break;
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}
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return $this->post->post_title . $type_label;
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}
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/**
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* Get the content (liner notes/description).
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*
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* @return string
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*/
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public function get_content(): string {
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$content = $this->post->post_content;
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// Apply content filters for proper formatting.
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$content = apply_filters( 'the_content', $content );
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return wp_kses_post( $content );
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}
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/**
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* Get the summary (excerpt).
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*
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* @return string
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*/
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public function get_summary(): string {
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if ( ! empty( $this->post->post_excerpt ) ) {
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return wp_strip_all_tags( $this->post->post_excerpt );
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}
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// Build summary from album info.
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$artist_id = get_post_meta( $this->post->ID, '_fedistream_album_artist', true );
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$artist = $artist_id ? get_post( $artist_id ) : null;
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$release_date = get_post_meta( $this->post->ID, '_fedistream_release_date', true );
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$track_count = (int) get_post_meta( $this->post->ID, '_fedistream_total_tracks', true );
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$summary = '';
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if ( $artist ) {
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$summary .= sprintf( __( 'By %s', 'wp-fedistream' ), $artist->post_title );
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}
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if ( $release_date ) {
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/* translators: %s: release date */
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$summary .= ' ' . sprintf( __( '- Released %s', 'wp-fedistream' ), $release_date );
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}
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if ( $track_count ) {
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/* translators: %d: number of tracks */
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$summary .= ' ' . sprintf( _n( '- %d track', '- %d tracks', $track_count, 'wp-fedistream' ), $track_count );
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}
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return trim( $summary );
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}
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/**
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* Get the URL (permalink).
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*
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* @return string
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*/
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public function get_url(): string {
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return get_permalink( $this->post->ID );
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}
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/**
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* Get the attributed actor.
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*
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* @return string Artist URI.
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*/
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public function get_attributed_to(): string {
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$artist_id = get_post_meta( $this->post->ID, '_fedistream_album_artist', true );
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if ( ! $artist_id ) {
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return '';
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}
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return get_permalink( $artist_id );
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}
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/**
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* Get the published date.
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*
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* @return string ISO 8601 date.
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*/
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public function get_published(): string {
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// Use release date if available, otherwise post date.
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$release_date = get_post_meta( $this->post->ID, '_fedistream_release_date', true );
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if ( $release_date ) {
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$date = \DateTime::createFromFormat( 'Y-m-d', $release_date );
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if ( $date ) {
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return $date->format( 'c' );
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}
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}
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return get_the_date( 'c', $this->post );
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}
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/**
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* Get the updated date.
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*
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* @return string ISO 8601 date.
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*/
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public function get_updated(): string {
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return get_the_modified_date( 'c', $this->post );
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}
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/**
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* Get the total duration.
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*
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* @return string ISO 8601 duration.
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*/
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public function get_duration(): string {
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$seconds = (int) get_post_meta( $this->post->ID, '_fedistream_total_duration', true );
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if ( ! $seconds ) {
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// Calculate from tracks.
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$tracks = $this->get_tracks();
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foreach ( $tracks as $track ) {
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$seconds += (int) get_post_meta( $track->ID, '_fedistream_duration', true );
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}
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}
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if ( ! $seconds ) {
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return '';
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}
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return $this->format_duration_iso8601( $seconds );
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}
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/**
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* Get the tracks in this album.
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*
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* @return array Array of WP_Post objects.
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*/
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public function get_tracks(): array {
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$args = array(
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'post_type' => 'fedistream_track',
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'post_status' => 'publish',
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'posts_per_page' => -1,
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'meta_key' => '_fedistream_track_number', // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_key
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'orderby' => 'meta_value_num',
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'order' => 'ASC',
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'meta_query' => array( // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
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array(
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'key' => '_fedistream_album_id',
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'value' => $this->post->ID,
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),
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),
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);
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$query = new \WP_Query( $args );
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return $query->posts;
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}
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/**
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* Get the total item count.
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*
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* @return int
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*/
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public function get_total_items(): int {
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$count = (int) get_post_meta( $this->post->ID, '_fedistream_total_tracks', true );
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if ( ! $count ) {
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$count = count( $this->get_tracks() );
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}
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return $count;
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}
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/**
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* Get the collection items (track URIs).
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*
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* @return array
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*/
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public function get_items(): array {
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$tracks = $this->get_tracks();
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$items = array();
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foreach ( $tracks as $track ) {
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$transformer = new TrackTransformer( $track );
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$items[] = $transformer->to_object();
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}
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return $items;
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}
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/**
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* Get the image/artwork attachment.
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*
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* @return array|null
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*/
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public function get_image_attachment(): ?array {
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$thumbnail_id = get_post_thumbnail_id( $this->post->ID );
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if ( ! $thumbnail_id ) {
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return null;
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}
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$image = wp_get_attachment_image_src( $thumbnail_id, 'medium' );
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if ( ! $image ) {
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return null;
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}
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return array(
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'type' => 'Image',
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'mediaType' => get_post_mime_type( $thumbnail_id ),
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'url' => $image[0],
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'width' => $image[1],
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'height' => $image[2],
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);
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}
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/**
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* Get tags (genres).
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*
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* @return array
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*/
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public function get_tags(): array {
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$tags = array();
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// Get genres.
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$genres = get_the_terms( $this->post->ID, 'fedistream_genre' );
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if ( $genres && ! is_wp_error( $genres ) ) {
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foreach ( $genres as $genre ) {
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$tags[] = array(
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'type' => 'Hashtag',
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'name' => '#' . sanitize_title( $genre->name ),
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'href' => get_term_link( $genre ),
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);
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}
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}
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return $tags;
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}
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/**
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* Transform to ActivityPub object array.
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*
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* @return array
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*/
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public function to_object(): array {
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$object = array(
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'@context' => 'https://www.w3.org/ns/activitystreams',
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'type' => $this->get_type(),
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'id' => $this->get_id(),
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'name' => $this->get_name(),
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'summary' => $this->get_summary(),
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'content' => $this->get_content(),
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'url' => $this->get_url(),
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'attributedTo' => $this->get_attributed_to(),
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'published' => $this->get_published(),
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'updated' => $this->get_updated(),
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'totalItems' => $this->get_total_items(),
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'items' => $this->get_items(),
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);
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// Add duration.
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$duration = $this->get_duration();
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if ( $duration ) {
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$object['duration'] = $duration;
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}
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// Add image.
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$image = $this->get_image_attachment();
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if ( $image ) {
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$object['image'] = $image;
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}
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// Add tags.
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$tags = $this->get_tags();
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if ( ! empty( $tags ) ) {
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$object['tag'] = $tags;
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}
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// Add album-specific metadata.
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$album_type = get_post_meta( $this->post->ID, '_fedistream_album_type', true );
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if ( $album_type ) {
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$object['albumType'] = $album_type;
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}
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$upc = get_post_meta( $this->post->ID, '_fedistream_upc', true );
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if ( $upc ) {
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$object['upc'] = $upc;
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}
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$catalog = get_post_meta( $this->post->ID, '_fedistream_catalog_number', true );
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if ( $catalog ) {
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$object['catalogNumber'] = $catalog;
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}
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$release_date = get_post_meta( $this->post->ID, '_fedistream_release_date', true );
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if ( $release_date ) {
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$object['releaseDate'] = $release_date;
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}
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return $object;
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}
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/**
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* Create a Create activity for this album.
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*
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* @return array
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*/
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public function to_create_activity(): array {
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$actor = $this->get_attributed_to();
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return array(
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'@context' => 'https://www.w3.org/ns/activitystreams',
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'type' => 'Create',
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'id' => $this->get_id() . '#activity-create',
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'actor' => $actor,
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'published' => $this->get_published(),
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'to' => array( 'https://www.w3.org/ns/activitystreams#Public' ),
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'cc' => array( $actor . '/followers' ),
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'object' => $this->to_object(),
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);
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}
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/**
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* Create an Announce activity for this album.
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*
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* @param string $actor_uri The actor announcing the album.
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* @return array
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*/
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public function to_announce_activity( string $actor_uri ): array {
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return array(
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'@context' => 'https://www.w3.org/ns/activitystreams',
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'type' => 'Announce',
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'id' => $this->get_id() . '#activity-announce-' . time(),
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'actor' => $actor_uri,
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'published' => gmdate( 'c' ),
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'to' => array( 'https://www.w3.org/ns/activitystreams#Public' ),
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'cc' => array( $actor_uri . '/followers' ),
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'object' => $this->get_id(),
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);
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}
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/**
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* Format duration as ISO 8601.
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*
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* @param int $seconds The duration in seconds.
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* @return string ISO 8601 duration.
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*/
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private function format_duration_iso8601( int $seconds ): string {
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$hours = floor( $seconds / 3600 );
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$minutes = floor( ( $seconds % 3600 ) / 60 );
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$secs = $seconds % 60;
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$duration = 'PT';
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if ( $hours > 0 ) {
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$duration .= $hours . 'H';
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}
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if ( $minutes > 0 ) {
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$duration .= $minutes . 'M';
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}
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if ( $secs > 0 || ( $hours === 0 && $minutes === 0 ) ) {
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$duration .= $secs . 'S';
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}
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return $duration;
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}
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}
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Reference in New Issue
Block a user