WP_REST_Font_Collections_Controller::get_items( $request ): WP_REST_Response|WP_Error

74	public function get_items( $request ) {75		$collections_all = WP_Font_Library::get_instance()->get_font_collections();76 77		$page        = $request['page'];78		$per_page    = $request['per_page'];79		$total_items = count( $collections_all );80		$max_pages   = (int) ceil( $total_items / $per_page );81 82		if ( $page > $max_pages && $total_items > 0 ) {83			return new WP_Error(84				'rest_post_invalid_page_number',85				__( 'The page number requested is larger than the number of pages available.' ),86				array( 'status' => 400 )87			);88		}89 90		$collections_page = array_slice( $collections_all, ( $page - 1 ) * $per_page, $per_page );91 92		$is_head_request = $request->is_method( 'HEAD' );93 94		$items = array();95		foreach ( $collections_page as $collection ) {96			$item = $this->prepare_item_for_response( $collection, $request );97 98			// If there's an error loading a collection, skip it and continue loading valid collections.99			if ( is_wp_error( $item ) ) {100				continue;101			}102 103			/*104			 * Skip preparing the response body for HEAD requests.105			 * Cannot exit earlier due to backward compatibility reasons,106			 * as validation occurs in the prepare_item_for_response method.107			 */108			if ( $is_head_request ) {109				continue;110			}111 112			$item    = $this->prepare_response_for_collection( $item );113			$items[] = $item;114		}115 116		$response = $is_head_request ? new WP_REST_Response( array() ) : rest_ensure_response( $items );117 118		$response->header( 'X-WP-Total', (int) $total_items );119		$response->header( 'X-WP-TotalPages', $max_pages );120 121		$request_params = $request->get_query_params();122		$collection_url = rest_url( $this->namespace . '/' . $this->rest_base );123		$base           = add_query_arg( urlencode_deep( $request_params ), $collection_url );124 125		if ( $page > 1 ) {126			$prev_page = $page - 1;127 128			if ( $prev_page > $max_pages ) {129				$prev_page = $max_pages;130			}131 132			$prev_link = add_query_arg( 'page', $prev_page, $base );133			$response->link_header( 'prev', $prev_link );134		}135		if ( $max_pages > $page ) {136			$next_page = $page + 1;137			$next_link = add_query_arg( 'page', $next_page, $base );138 139			$response->link_header( 'next', $next_link );140		}141 142		return $response;143	}