[1] : 'auto';

			// Handle resize.
			$sizes2crop = self::size_to_crop();
			$resize     = apply_filters( 'optml_default_crop', [] );
			$sizes      = image_get_intermediate_size( $attachment_id, $size );
			if ( false !== $sizes ) {
				if ( isset( $sizes2crop[ $width . $height ] ) ) {
					$resize = $this->to_optml_crop( $sizes2crop[ $width . $height ] );
				}
			}

			// Build the optimized URL.
			$optimized_url = $this->get_optimized_image_url( self::KEYS['not_processed_flag'] . $attachment_id . '/' . ltrim( $this->get_offloaded_attachment_url( $attachment_id, $url ), '/' ), $width, $height, $resize );

			// Drop any image size from the URL.
			$optimized_url = str_replace( '-' . $width . 'x' . $height, '', $optimized_url );

			$to_replace[ $url ] = $optimized_url;
		}

		return str_replace( array_keys( $to_replace ), array_values( $to_replace ), $content );
	}

	/**
	 * Replaces the post content URLs to use Offloaded ones on editor fetch.
	 *
	 * @param \WP_REST_Response $response The response object.
	 * @param \WP_Post          $post The post object.
	 * @param \WP_REST_Request  $request The request object.
	 *
	 * @return \WP_REST_Response
	 */
	public function pre_filter_rest_content( \WP_REST_Response $response, \WP_Post $post, \WP_REST_Request $request ) {
		$context = $request->get_param( 'context' );

		if ( $context !== 'edit' ) {
			return $response;
		}

		$data = $response->get_data();

		// Actually replace all URLs.
		$data['content']['raw'] = $this->replace_urls_in_editor_content( $data['content']['raw'] );

		$response->set_data( $data );

		return $response;
	}

	/**
	 * Legacy function to be used for WordPress versions under 6.0.0.
	 *
	 * @param array $post_data Slashed, sanitized, processed post data.
	 * @param array $postarr Slashed sanitized post data.
	 * @param array $unsanitized_postarr Un-sanitized post data.
	 *
	 * @return array
	 */
	public function legacy_filter_saved_data( $post_data, $postarr, $unsanitized_postarr ) {
		return $this->filter_saved_data( $post_data, $postarr, $unsanitized_postarr, true );
	}

	/**
	 * Filter post content to use local attachments when saving offloaded images.
	 *
	 * @param array $post_data Slashed, sanitized, processed post data.
	 * @param array $postarr Slashed sanitized post data.
	 * @param array $unsanitized_postarr Un-sanitized post data.
	 * @param bool  $update Whether this is an existing post being updated or not.
	 *
	 * @return array
	 */
	public function filter_saved_data( $post_data, $postarr, $unsanitized_postarr, $update ) {
		if ( $postarr['post_status'] === 'trash' ) {
			return $post_data;
		}

		$content = $post_data['post_content'];

		$extracted = Optml_Main::instance()->manager->extract_urls_from_content( $content );
		$replace   = [];

		foreach ( $extracted as $idx => $url ) {
			$id = self::get_attachment_id_from_url( $url );

			if ( $id === false ) {
				continue;
			}

			$id = (int) $id;

			if ( $this->is_legacy_offloaded_attachment( $id ) ) {
				continue;
			}

			$original = self::get_original_url( $id );

			if ( $original === false ) {
				continue;
			}

			$replace[ $url ] = $original;

			$size = $this->parse_dimension_from_optimized_url( $url );

			if ( $size[0] === false || $size[1] === false ) {
				continue;
			}
			if ( $size[0] === 'auto' || $size[1] === 'auto' ) {
				continue;
			}

			$extension = $this->get_ext( $url );
			$metadata  = wp_get_attachment_metadata( $id );

			// Is this the full URL.
			if ( $metadata['width'] === (int) $size[0] && $metadata['height'] === (int) $size[1] ) {
				continue;
			}

			$size_crop_map = self::size_to_crop();

			$crop = false;

			if ( isset( $size_crop_map[ $size[0] . $size[1] ] ) ) {
				$crop = $size_crop_map[ $size[0] . $size[1] ];
			}

			if ( $crop ) {
				$width  = $size[0];
				$height = $size[1];
			} else {
				// In case of an image size, we need to calculate the new dimensions for the proper file path.
				$constrained = wp_constrain_dimensions( $metadata['width'], $metadata['height'], $size[0], $size[1] );

				$width  = $constrained[0];
				$height = $constrained[1];
			}
			$replace[ $url ] = $this->maybe_strip_scaled( $replace[ $url ] );

			$suffix = sprintf( '-%sx%s.%s', $width, $height, $extension );

			$replace[ $url ] = str_replace( '.' . $extension, $suffix, $replace[ $url ] );
		}

		$post_data['post_content'] = str_replace( array_keys( $replace ), array_values( $replace ), $content );

		return $post_data;
	}

	/**
	 * Alter the image size for the image widget.
	 *
	 * @param string $html the attachment image HTML string.
	 * @param array  $settings Control settings.
	 * @param string $image_size_key Optional. Settings key for image size.
	 *                               Default is `image`.
	 * @param string $image_key Optional. Settings key for image. Default
	 *                               is null. If not defined uses image size key
	 *                               as the image key.
	 *
	 * @return string
	 */
	public function alter_elementor_image_size( $html, $settings, $image_size_key, $image_key ) {
		if ( ! isset( $settings['image'] ) ) {
			return $html;
		}

		$image = $settings['image'];

		if ( ! isset( $image['id'] ) ) {
			return $html;
		}

		if ( ! $this->is_new_offloaded_attachment( $image['id'] ) ) {
			return $html;
		}

		if ( ! isset( $settings['image_size'] ) ) {
			return $html;
		}

		if ( $settings['image_size'] === 'custom' ) {
			if ( ! isset( $settings['image_custom_dimension'] ) ) {
				return $html;
			}

			$custom_dimensions = $settings['image_custom_dimension'];

			if ( ! isset( $custom_dimensions['width'] ) || ! isset( $custom_dimensions['height'] ) ) {
				return $html;
			}

			$new_args = [
				'width'  => $custom_dimensions['width'],
				'height' => $custom_dimensions['height'],
				'resize' => $this->to_optml_crop( true ),
			];
			$new_url  = $this->get_new_offloaded_attachment_url( $image['url'], $image['id'], $new_args );

			return str_replace( $image['url'], $new_url, $html );
		}

		return $html;
	}

	/**
	 * Adds new actions for new offloads.
	 *
	 * @return void
	 */
	public function add_new_actions() {
		add_filter( 'wp_prepare_attachment_for_js', [ self::$instance, 'alter_attachment_for_js' ], 999, 3 );
		add_filter( 'wp_get_attachment_metadata', [ self::$instance, 'alter_attachment_metadata' ], 10, 2 );
		add_filter( 'wp_get_attachment_image_src', [ self::$instance, 'alter_attachment_image_src' ], 10, 4 );

		// Needed for rendering beaver builder css properly.
		add_filter( 'fl_builder_render_css', [ self::$instance, 'replace_urls_in_editor_content' ], 10, 1 );

		// Filter saved data on insert to use local attachments.
		// Backwards compatibility for older versions of WordPress < 6.0.0 requiring 3 parameters for this specific filter.
		$below_6_0_0 = version_compare( get_bloginfo( 'version' ), '6.0.0', '<' );
		if ( $below_6_0_0 ) {
			add_filter( 'wp_insert_post_data', [ self::$instance, 'legacy_filter_saved_data' ], 10, 3 );
		} else {
			add_filter( 'wp_insert_post_data', [ self::$instance, 'filter_saved_data' ], 10, 4 );
		}

		// Filter loaded data in the editors to use local attachments.
		add_filter( 'content_edit_pre', [ self::$instance, 'replace_urls_in_editor_content' ], 10, 1 );

		add_action(
			'init',
			function () {
				$types = get_post_types_by_support( 'editor' );

				foreach ( $types as $type ) {

					$post_type = get_post_type_object( $type );

					if ( property_exists( $post_type, 'show_in_rest' ) && true === $post_type->show_in_rest ) {
						add_filter( 'rest_prepare_' . $type, [ self::$instance, 'pre_filter_rest_content' ], 10, 3 );
					}
				}
			},
			PHP_INT_MAX
		);

		add_filter( 'get_attached_file', [ $this, 'alter_attached_file_response' ], 10, 2 );
		add_filter(
			'elementor/image_size/get_attachment_image_html',
			[
				$this,
				'alter_elementor_image_size',
			],
			10,
			4
		);
	}

	/**
	 * Elementor checks if the file exists before requesting a specific image size.
	 *
	 * Needed because otherwise there won't be any width/height on the `img` tags, breaking lazyload.
	 *
	 * Also needed because some
	 *
	 * @param string $file The file path.
	 * @param int    $id The attachment ID.
	 *
	 * @return bool|string
	 */
	public function alter_attached_file_response( $file, $id ) {
		if ( ! $this->is_new_offloaded_attachment( $id ) ) {
			return $file;
		}

		$metadata = wp_get_attachment_metadata( $id );

		if ( isset( $metadata['file'] ) ) {
			$uploads = wp_get_upload_dir();

			return $uploads['basedir'] . '/' . $metadata['file'];
		}

		return true;
	}

	/**
	 * Maybe strip the `-scaled` from the URL.
	 *
	 * @param string $url The url.
	 *
	 * @return string
	 */
	public function maybe_strip_scaled( $url ) {
		$ext = $this->get_ext( $url );

		return str_replace( '-scaled.' . $ext, '.' . $ext, $url );
	}

	/**
	 * Is it a PHPUnit test run.
	 *
	 * @return bool
	 */
	public static function is_phpunit_test() {
		return defined( 'OPTML_PHPUNIT_TESTING' ) && OPTML_PHPUNIT_TESTING === true;
	}

	/**
	 * Get offloaded image attachment URL based on the given attachment ID and URL.
	 *
	 * @param mixed  $attachment_id The attachment ID.
	 * @param string $url           The attachment URL.
	 *
	 * @return string
	 */
	private function get_offloaded_attachment_url( $attachment_id, $url ) {
		if ( ! $this->settings->is_offload_enabled() || ! is_numeric( $attachment_id ) ) {
			return $url;
		} elseif ( empty( $attachment_id ) && strpos( $url, self::KEYS['not_processed_flag'] ) !== false ) {
			$attachment_id = (int) self::get_attachment_id_from_url( $url );
		} elseif ( empty( $attachment_id ) ) {
			$attachment_id = $this->attachment_url_to_post_id( $url );
		}

		if ( $attachment_id > 0 || ! empty( get_post_meta( $attachment_id, self::OM_OFFLOADED_FLAG, true ) ) ) {
			$url = wp_get_attachment_metadata( $attachment_id )['file'];
		}

		return $url;
	}

	/**
	 * Cleanup the offload errors meta.
	 */
	public static function clear_offload_errors_meta() {
		global $wpdb;

		return $wpdb->query(
			$wpdb->prepare(
				"DELETE FROM {$wpdb->postmeta} WHERE meta_key = %s",
				self::META_KEYS['offload_error']
			)
		);
	}
}