rogress-' . $id ) || get_transient( 'wp-smush-restore-' . $id ) ) {
			return;
		}

		// If auto Smush is disabled.
		if ( ! $this->is_auto_smush_enabled() ) {
			return;
		}

		/**
		 * Filter: wp_smush_image
		 *
		 * Whether to smush the given attachment id or not
		 *
		 * @param bool $skip  Whether to Smush image or not.
		 * @param int  $id    Attachment ID of the image being processed.
		 */
		if ( ! apply_filters( 'wp_smush_image', true, $id ) ) {
			return;
		}

		// If filepath is not set or file doesn't exist.
		if ( ! isset( $post_data['filepath'] ) || ! file_exists( $post_data['filepath'] ) ) {
			return;
		}

		$res = $this->do_smushit( $post_data['filepath'] );

		if ( is_wp_error( $res ) || empty( $res['success'] ) || ! $res['success'] ) {
			// Logged the error inside do_smushit.
			return;
		}

		// Update stats if it's the full size image. Return if it's not the full image size.
		if ( $post_data['filepath'] != get_attached_file( $post_data['postid'] ) ) {
			return;
		}

		// Get the existing Stats.
		$smush_stats = get_post_meta( $post_data['postid'], self::$smushed_meta_key, true );
		$stats_full  = ! empty( $smush_stats['sizes'] ) && ! empty( $smush_stats['sizes']['full'] ) ? $smush_stats['sizes']['full'] : '';

		if ( empty( $stats_full ) ) {
			return;
		}

		// store the original image size.
		$stats_full->size_before = ( ! empty( $stats_full->size_before ) && $stats_full->size_before > $res['data']->before_size ) ? $stats_full->size_before : $res['data']->before_size;
		$stats_full->size_after  = $res['data']->after_size;

		// Update compression percent and bytes saved for each size.
		$stats_full->bytes = $stats_full->size_before - $stats_full->size_after;

		$stats_full->percent          = $this->calculate_percentage_from_stats( $stats_full );
		$smush_stats['sizes']['full'] = $stats_full;

		// Update stats.
		update_post_meta( $post_data['postid'], self::$smushed_meta_key, $smush_stats );
	}

	/**
	 * Make sure we treat the scaled image as an attachment size, rather than the original uploaded image.
	 *
	 * @since 3.9.1
	 *
	 * @param array $meta           Attachment meta data.
	 * @param int   $attachment_id  Attachment ID.
	 *
	 * @return array
	 */
	public function add_scaled_to_meta( $meta, $attachment_id ) {
		// If the image is not a scaled version - do nothing.
		if ( false === strpos( $meta['file'], '-scaled.' ) || ! isset( $meta['original_image'] ) || isset( $meta['sizes']['wp_scaled'] ) ) {
			return $meta;
		}

		$meta['sizes']['wp_scaled'] = array(
			'file'      => basename( $meta['file'] ),
			'width'     => $meta['width'],
			'height'    => $meta['height'],
			'mime-type' => get_post_mime_type( $attachment_id ),
		);

		return $meta;
	}

}