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ðŸ“„ AbstractBlock.php(8.96 KB)
ðŸ“„ AbstractBlockTemplate.php(3.47 KB)
ðŸ“„ Block.php(750 B)
ðŸ“„ BlockContainerTrait.php(10.08 KB)
ðŸ“„ BlockFormattedTemplateTrait.php(1.72 KB)
ðŸ“„ BlockTemplate.php(768 B)
ðŸ“„ BlockTemplateLogger.php(14.22 KB)

Editing: BlockTemplateLogger.php

<?php

namespace Automattic\WooCommerce\Internal\Admin\BlockTemplates;

use Automattic\WooCommerce\Admin\BlockTemplates\BlockContainerInterface;
use Automattic\WooCommerce\Admin\BlockTemplates\BlockInterface;
use Automattic\WooCommerce\Admin\BlockTemplates\BlockTemplateInterface;
use Automattic\WooCommerce\Admin\BlockTemplates\ContainerInterface;

/**
 * Logger for block template modifications.
 */
class BlockTemplateLogger {
	const BLOCK_ADDED                            = 'block_added';
	const BLOCK_REMOVED                          = 'block_removed';
	const BLOCK_MODIFIED                         = 'block_modified';
	const BLOCK_ADDED_TO_DETACHED_CONTAINER      = 'block_added_to_detached_container';
	const HIDE_CONDITION_ADDED                   = 'hide_condition_added';
	const HIDE_CONDITION_REMOVED                 = 'hide_condition_removed';
	const HIDE_CONDITION_ADDED_TO_DETACHED_BLOCK = 'hide_condition_added_to_detached_block';
	const ERROR_AFTER_BLOCK_ADDED                = 'error_after_block_added';
	const ERROR_AFTER_BLOCK_REMOVED              = 'error_after_block_removed';

const LOG_HASH_TRANSIENT_BASE_NAME = 'wc_block_template_events_log_hash_';

/**
	 * Event types.
	 *
	 * @var array
	 */
	public static $event_types = array(
		self::BLOCK_ADDED                            => array(
			'level'   => \WC_Log_Levels::DEBUG,
			'message' => 'Block added to template.',
		),
		self::BLOCK_REMOVED                          => array(
			'level'   => \WC_Log_Levels::NOTICE,
			'message' => 'Block removed from template.',
		),
		self::BLOCK_MODIFIED                         => array(
			'level'   => \WC_Log_Levels::NOTICE,
			'message' => 'Block modified in template.',
		),
		self::BLOCK_ADDED_TO_DETACHED_CONTAINER      => array(
			'level'   => \WC_Log_Levels::WARNING,
			'message' => 'Block added to detached container. Block will not be included in the template, since the container will not be included in the template.',
		),
		self::HIDE_CONDITION_ADDED                   => array(
			'level'   => \WC_Log_Levels::NOTICE,
			'message' => 'Hide condition added to block.',
		),
		self::HIDE_CONDITION_REMOVED                 => array(
			'level'   => \WC_Log_Levels::NOTICE,
			'message' => 'Hide condition removed from block.',
		),
		self::HIDE_CONDITION_ADDED_TO_DETACHED_BLOCK => array(
			'level'   => \WC_Log_Levels::WARNING,
			'message' => 'Hide condition added to detached block. Block will not be included in the template, so the hide condition is not needed.',
		),
		self::ERROR_AFTER_BLOCK_ADDED                => array(
			'level'   => \WC_Log_Levels::WARNING,
			'message' => 'Error after block added to template.',
		),
		self::ERROR_AFTER_BLOCK_REMOVED              => array(
			'level'   => \WC_Log_Levels::WARNING,
			'message' => 'Error after block removed from template.',
		),
	);

/**
	 * Singleton instance.
	 *
	 * @var BlockTemplateLogger
	 */
	protected static $instance = null;

/**
	 * Logger instance.
	 *
	 * @var \WC_Logger
	 */
	protected $logger = null;

/**
	 * All template events.
	 *
	 * @var array
	 */
	private $all_template_events = array();

/**
	 * Templates.
	 *
	 * @var array
	 */
	private $templates = array();

/**
	 * Threshold severity.
	 *
	 * @var int
	 */
	private $threshold_severity = null;

/**
	 * Get the singleton instance.
	 */
	public static function get_instance(): BlockTemplateLogger {
		if ( ! self::$instance ) {
			self::$instance = new self();
		}

return self::$instance;
	}

/**
	 * Constructor.
	 */
	protected function __construct() {
		$this->logger = wc_get_logger();

$threshold = get_option( 'woocommerce_block_template_logging_threshold', \WC_Log_Levels::WARNING );
		if ( ! \WC_Log_Levels::is_valid_level( $threshold ) ) {
			$threshold = \WC_Log_Levels::INFO;
		}

$this->threshold_severity = \WC_Log_Levels::get_level_severity( $threshold );

add_action(
			'woocommerce_block_template_after_add_block',
			function ( BlockInterface $block ) {
				$is_detached = method_exists( $block->get_parent(), 'is_detached' ) && $block->get_parent()->is_detached();

$this->log(
					$is_detached
						? $this::BLOCK_ADDED_TO_DETACHED_CONTAINER
						: $this::BLOCK_ADDED,
					$block,
				);
			},
			0,
		);

add_action(
			'woocommerce_block_template_after_remove_block',
			function ( BlockInterface $block ) {
				$this->log(
					$this::BLOCK_REMOVED,
					$block,
				);
			},
			0,
		);

add_action(
			'woocommerce_block_template_after_add_hide_condition',
			function ( BlockInterface $block ) {
				$this->log(
					$block->is_detached()
						? $this::HIDE_CONDITION_ADDED_TO_DETACHED_BLOCK
						: $this::HIDE_CONDITION_ADDED,
					$block,
				);
			},
			0
		);

add_action(
			'woocommerce_block_template_after_remove_hide_condition',
			function ( BlockInterface $block ) {
				$this->log(
					$this::HIDE_CONDITION_REMOVED,
					$block,
				);
			},
			0
		);

add_action(
			'woocommerce_block_template_after_add_block_error',
			function ( BlockInterface $block, string $action, \Exception $exception ) {
				$this->log(
					$this::ERROR_AFTER_BLOCK_ADDED,
					$block,
					array(
						'action'    => $action,
						'exception' => $exception,
					),
				);
			},
			0,
			3
		);

add_action(
			'woocommerce_block_template_after_remove_block_error',
			function ( BlockInterface $block, string $action, \Exception $exception ) {
				$this->log(
					$this::ERROR_AFTER_BLOCK_REMOVED,
					$block,
					array(
						'action'    => $action,
						'exception' => $exception,
					),
				);
			},
			0,
			3
		);
	}

/**
	 * Get all template events for a given template as a JSON like array.
	 *
	 * @param string $template_id Template ID.
	 */
	public function template_events_to_json( string $template_id ): array {
		if ( ! isset( $this->all_template_events[ $template_id ] ) ) {
			return array();
		}

$template_events = $this->all_template_events[ $template_id ];

return $this->to_json( $template_events );
	}

/**
	 * Get all template events as a JSON like array.
	 *
	 * @param array $template_events Template events.
	 *
	 * @return array The JSON.
	 */
	private function to_json( array $template_events ): array {
		$json = array();

foreach ( $template_events as $template_event ) {
			$container = $template_event['container'];
			$block     = $template_event['block'];

$json[] = array(
				'level'           => $template_event['level'],
				'event_type'      => $template_event['event_type'],
				'message'         => $template_event['message'],
				'container'       => $container instanceof BlockInterface
					? array(
						'id'   => $container->get_id(),
						'name' => $container->get_name(),
					)
					: null,
				'block'           => array(
					'id'   => $block->get_id(),
					'name' => $block->get_name(),
				),
				'additional_info' => $this->format_info( $template_event['additional_info'] ),
			);
		}

return $json;
	}

/**
	 * Log all template events for a given template to the log file.
	 *
	 * @param string $template_id Template ID.
	 */
	public function log_template_events_to_file( string $template_id ) {
		if ( ! isset( $this->all_template_events[ $template_id ] ) ) {
			return;
		}

$template_events = $this->all_template_events[ $template_id ];

$hash = $this->generate_template_events_hash( $template_events );

if ( ! $this->has_template_events_changed( $template_id, $hash ) ) {
			// Nothing has changed since the last time this was logged,
			// so don't log it again.
			return;
		}

$this->set_template_events_log_hash( $template_id, $hash );

$template = $this->templates[ $template_id ];

foreach ( $template_events as $template_event ) {
			$info = array_merge(
				array(
					'template'  => $template,
					'container' => $template_event['container'],
					'block'     => $template_event['block'],
				),
				$template_event['additional_info']
			);

$message = $this->format_message( $template_event['message'], $info );

$this->logger->log(
				$template_event['level'],
				$message,
				array( 'source' => 'block_template' )
			);
		}
	}

/**
	 * Has the template events changed since the last time they were logged?
	 *
	 * @param string $template_id Template ID.
	 * @param string $events_hash Events hash.
	 */
	private function has_template_events_changed( string $template_id, string $events_hash ) {
		$previous_hash = get_transient( self::LOG_HASH_TRANSIENT_BASE_NAME . $template_id );

return $previous_hash !== $events_hash;
	}

/**
	 * Generate a hash for a given set of template events.
	 *
	 * @param array $template_events Template events.
	 */
	private function generate_template_events_hash( array $template_events ): string {
		return md5( wp_json_encode( $this->to_json( $template_events ) ) );
	}

/**
	 * Set the template events hash for a given template.
	 *
	 * @param string $template_id Template ID.
	 * @param string $hash        Hash of template events.
	 */
	private function set_template_events_log_hash( string $template_id, string $hash ) {
		set_transient( self::LOG_HASH_TRANSIENT_BASE_NAME . $template_id, $hash );
	}

/**
	 * Log an event.
	 *
	 * @param string         $event_type      Event type.
	 * @param BlockInterface $block           Block.
	 * @param array          $additional_info Additional info.
	 */
	private function log( string $event_type, BlockInterface $block, $additional_info = array() ) {
		if ( ! isset( self::$event_types[ $event_type ] ) ) {
			/* translators: 1: WC_Logger::log 2: level */
			wc_doing_it_wrong( __METHOD__, sprintf( __( '%1$s was called with an invalid event type "%2$s".', 'woocommerce' ), '<code>BlockTemplateLogger::log</code>', $event_type ), '8.4' );
		}

$event_type_info = isset( self::$event_types[ $event_type ] )
			? array_merge(
				self::$event_types[ $event_type ],
				array(
					'event_type' => $event_type,
				)
			)
			: array(
				'level'      => \WC_Log_Levels::ERROR,
				'event_type' => $event_type,
				'message'    => 'Unknown error.',
			);

if ( ! $this->should_handle( $event_type_info['level'] ) ) {
			return;
		}

$template  = $block->get_root_template();
		$container = $block->get_parent();

$this->add_template_event( $event_type_info, $template, $container, $block, $additional_info );
	}

/**
	 * Should the logger handle a given level?
	 *
	 * @param int $level Level to check.
	 */
	private function should_handle( $level ) {
		return $this->threshold_severity <= \WC_Log_Levels::get_level_severity( $level );
	}

/**
	 * Add a template event.
	 *
	 * @param array                  $event_type_info Event type info.
	 * @param BlockTemplateInterface $template        Template.
	 * @param ContainerInterface     $container       Container.
	 * @param BlockInterface         $block           Block.
	 * @param array                  $additional_info Additional info.
	 */
	private function add_template_event( array $event_type_info, BlockTemplateInterface $template, ContainerInterface $container, BlockInterface $block, array $additional_info = array() ) {
		$template_id = $template->get_id();

if ( ! isset( $this->all_template_events[ $template_id ] ) ) {
			$this->all_template_events[ $template_id ] = array();
			$this->templates[ $template_id ]           = $template;
		}

$template_events = &$this->all_template_events[ $template_id ];

$template_events[] = array(
			'level'           => $event_type_info['level'],
			'event_type'      => $event_type_info['event_type'],
			'message'         => $event_type_info['message'],
			'container'       => $container,
			'block'           => $block,
			'additional_info' => $additional_info,
		);
	}

/**
	 * Format a message for logging.
	 *
	 * @param string $message Message to log.
	 * @param array  $info    Additional info to log.
	 */
	private function format_message( string $message, array $info = array() ): string {
		$formatted_message = sprintf(
			"%s\n%s",
			$message,
			// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_print_r
			print_r( $this->format_info( $info ), true ),
		);

return $formatted_message;
	}

/**
	 * Format info for logging.
	 *
	 * @param array $info Info to log.
	 */
	private function format_info( array $info ): array {
		$formatted_info = $info;

if ( isset( $info['exception'] ) && $info['exception'] instanceof \Exception ) {
			$formatted_info['exception'] = $this->format_exception( $info['exception'] );
		}

if ( isset( $info['container'] ) ) {
			if ( $info['container'] instanceof BlockContainerInterface ) {
				$formatted_info['container'] = $this->format_block( $info['container'] );
			} elseif ( $info['container'] instanceof BlockTemplateInterface ) {
				$formatted_info['container'] = $this->format_template( $info['container'] );
			} elseif ( $info['container'] instanceof BlockInterface ) {
				$formatted_info['container'] = $this->format_block( $info['container'] );
			}
		}

if ( isset( $info['block'] ) && $info['block'] instanceof BlockInterface ) {
			$formatted_info['block'] = $this->format_block( $info['block'] );
		}

if ( isset( $info['template'] ) && $info['template'] instanceof BlockTemplateInterface ) {
			$formatted_info['template'] = $this->format_template( $info['template'] );
		}

return $formatted_info;
	}

/**
	 * Format an exception for logging.
	 *
	 * @param \Exception $exception Exception to format.
	 */
	private function format_exception( \Exception $exception ): array {
		return array(
			'message' => $exception->getMessage(),
			'source'  => "{$exception->getFile()}: {$exception->getLine()}",
			// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_print_r
			'trace'   => print_r( $this->format_exception_trace( $exception->getTrace() ), true ),
		);
	}

/**
	 * Format an exception trace for logging.
	 *
	 * @param array $trace Exception trace to format.
	 */
	private function format_exception_trace( array $trace ): array {
		$formatted_trace = array();

foreach ( $trace as $source ) {
			$formatted_trace[] = "{$source['file']}: {$source['line']}";
		}

return $formatted_trace;
	}

/**
	 * Format a block template for logging.
	 *
	 * @param BlockTemplateInterface $template Template to format.
	 */
	private function format_template( BlockTemplateInterface $template ): string {
		return "{$template->get_id()} (area: {$template->get_area()})";
	}

/**
	 * Format a block for logging.
	 *
	 * @param BlockInterface $block Block to format.
	 */
	private function format_block( BlockInterface $block ): string {
		return "{$block->get_id()} (name: {$block->get_name()})";
	}
}

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