Automattic / jetpack

	 *   @type string $last_modified The most recent timestamp to appear on the sitemap.

	 * }

	 */

	public function build_one_image_sitemap( $number, $from_id ) {

		$last_post_id = $from_id;

		$any_posts_left = true;

		if ( $this->logger ) {

			$debug_name = jp_sitemap_filename( JP_IMAGE_SITEMAP_TYPE, $number );

			$this->logger->report( "-- Building $debug_name" );

		}

		$image_sitemap_xsl_url = $this->finder->construct_sitemap_url( 'image-sitemap.xsl' );

		$jetpack_version = JETPACK__VERSION;

		$namespaces = Jetpack_Sitemap_Buffer::array_to_xml_attr_string(

			/**

			 * Filter the XML namespaces included in image sitemaps.

			 *

			 * @module sitemaps

			 *

			 * @since 4.7.0

			 *

			 * @param array $namespaces Associative array with namespaces and namespace URIs.

			 */

			apply_filters(

				'jetpack_sitemap_image_ns',

				array(

					'xmlns:xsi'          => 'http://www.w3.org/2001/XMLSchema-instance',

					'xsi:schemaLocation' => 'http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd',

					'xmlns'              => 'http://www.sitemaps.org/schemas/sitemap/0.9',

					'xmlns:image'        => 'http://www.google.com/schemas/sitemap-image/1.1',

				)

			)

		);

		$buffer = new Jetpack_Sitemap_Buffer(

			JP_SITEMAP_MAX_ITEMS,

			JP_SITEMAP_MAX_BYTES,

			<<<HEADER

<?xml version='1.0' encoding='UTF-8'?>

<!-- generator='jetpack-{$jetpack_version}' -->

<?xml-stylesheet type='text/xsl' href='{$image_sitemap_xsl_url}'?>

<urlset{$namespaces}>\n

HEADER

			,

			<<<FOOTER

</urlset>\n

FOOTER

			,

			/* epoch */

			'1970-01-01 00:00:00'

		);

		// Add as many items to the buffer as possible.

		while ( false === $buffer->is_full() ) {

			$posts = $this->librarian->query_images_after_id(

				$last_post_id, JP_SITEMAP_BATCH_SIZE

			);

			if ( null == $posts ) { // WPCS: loose comparison ok.

				$any_posts_left = false;

				break;

			}

			foreach ( $posts as $post ) {

				$current_item = $this->image_post_to_sitemap_item( $post );

				if ( true === $buffer->try_to_add_item( $current_item['xml'] ) ) {

					$last_post_id = $post->ID;

					$buffer->view_time( $current_item['last_modified'] );

				} else {

					break;

				}

			}

		}

		// If no items were added, return false.

		if ( true === $buffer->is_empty() ) {

			return false;

		}

		// Store the buffer as the content of a jp_sitemap post.

		$this->librarian->store_sitemap_data(

			$number,

			JP_IMAGE_SITEMAP_TYPE,

			$buffer->contents(),

			$buffer->last_modified()

		);

		/*

		 * Now report back with the ID of the last post to be

		 * successfully added and whether there are any posts left.

		 */

		return array(

			'last_id'       => $last_post_id,

			'any_left'      => $any_posts_left,

			'last_modified' => $buffer->last_modified(),

		);

	}

	/**

	 * Build and store a single video sitemap. Returns false if no sitemap is built.

	 *   @type string $last_modified The most recent timestamp to appear on the sitemap.

	 * }

	 */

	public function build_one_video_sitemap( $number, $from_id ) {

		$last_post_id = $from_id;

		$any_posts_left = true;

		if ( $this->logger ) {

			$debug_name = jp_sitemap_filename( JP_VIDEO_SITEMAP_TYPE, $number );

			$this->logger->report( "-- Building $debug_name" );

		}

		$video_sitemap_xsl_url = $this->finder->construct_sitemap_url( 'video-sitemap.xsl' );

		$jetpack_version = JETPACK__VERSION;

		$namespaces = Jetpack_Sitemap_Buffer::array_to_xml_attr_string(

			/**

			 * Filter the XML namespaces included in video sitemaps.

			 *

			 * @module sitemaps

			 *

			 * @since 4.7.0

			 *

			 * @param array $namespaces Associative array with namespaces and namespace URIs.

			 */

			apply_filters(

				'jetpack_sitemap_video_ns',

				array(

					'xmlns:xsi'          => 'http://www.w3.org/2001/XMLSchema-instance',

					'xsi:schemaLocation' => 'http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd',

					'xmlns'              => 'http://www.sitemaps.org/schemas/sitemap/0.9',

					'xmlns:video'        => 'http://www.google.com/schemas/sitemap-video/1.1',

				)

			)

		);

		$buffer = new Jetpack_Sitemap_Buffer(

			JP_SITEMAP_MAX_ITEMS,

			JP_SITEMAP_MAX_BYTES,

			<<<HEADER

<?xml version='1.0' encoding='UTF-8'?>

<!-- generator='jetpack-{$jetpack_version}' -->

<?xml-stylesheet type='text/xsl' href='{$video_sitemap_xsl_url}'?>

<urlset{$namespaces}>\n

HEADER

			,

			<<<FOOTER

</urlset>\n

FOOTER

			,

			/* epoch */

			'1970-01-01 00:00:00'

		);

		// Add as many items to the buffer as possible.

		while ( false === $buffer->is_full() ) {

			$posts = $this->librarian->query_videos_after_id(

				$last_post_id, JP_SITEMAP_BATCH_SIZE

			);

			if ( null == $posts ) { // WPCS: loose comparison ok.

				$any_posts_left = false;

				break;

			}

			foreach ( $posts as $post ) {

				$current_item = $this->video_post_to_sitemap_item( $post );

				if ( true === $buffer->try_to_add_item( $current_item['xml'] ) ) {

					$last_post_id = $post->ID;

					$buffer->view_time( $current_item['last_modified'] );

				} else {

					break;

				}

			}

		}

		// If no items were added, return false.

		if ( true === $buffer->is_empty() ) {

			return false;

		}

		if ( false === $buffer->is_empty() ) {

			$this->librarian->store_sitemap_data(

				$number,

				JP_VIDEO_SITEMAP_TYPE,

				$buffer->contents(),

				$buffer->last_modified()

			);

		}

		/*

		 * Now report back with the ID of the last post to be

		 * successfully added and whether there are any posts left.

		 */

		return array(

			'last_id'       => $last_post_id,

			'any_left'      => $any_posts_left,

			'last_modified' => $buffer->last_modified(),

		);

	}

	/**

	 * Build and store a single page sitemap index. Return false if no index is built.