<?php
/**
* Evaluate the given rules as an AND operation - return false early if a
* rule evaluates to false.
*/
namespace Automattic\WooCommerce\Admin\RemoteInboxNotifications;
defined( 'ABSPATH' ) || exit;
/**
* Evaluate the given rules as an AND operation - return false early if a
* rule evaluates to false.
*/
class RuleEvaluator {
/**
* GetRuleProcessor to use.
*
* @var GetRuleProcessor
*/
private $get_rule_processor;
/**
* Constructor.
*
* @param GetRuleProcessor $get_rule_processor The GetRuleProcessor to use.
*/
public function __construct( $get_rule_processor = null ) {
$this->get_rule_processor = null === $get_rule_processor
? new GetRuleProcessor()
: $get_rule_processor;
}
/**
* Evaluate the given rules as an AND operation - return false early if a
* rule evaluates to false.
*
* @param array|object $rules The rule or rules being processed.
* @param object|null $stored_state Stored state.
* @param array $logger_args Arguments for the event logger. `slug` is required.
*
* @throws \InvalidArgumentException Thrown when $logger_args is missing slug.
*
* @return bool The result of the operation.
*/
public function evaluate( $rules, $stored_state = null, $logger_args = array() ) {
if ( is_bool( $rules ) ) {
return $rules;
}
if ( ! is_array( $rules ) ) {
$rules = array( $rules );
}
if ( 0 === count( $rules ) ) {
return false;
}
$evaluation_logger = null;
if ( count( $logger_args ) ) {
if ( ! array_key_exists( 'slug', $logger_args ) ) {
throw new \InvalidArgumentException( 'Missing required field: slug in $logger_args.' );
}
array_key_exists( 'source', $logger_args ) ? $source = $logger_args['source'] : $source = null;
$evaluation_logger = new EvaluationLogger( $logger_args['slug'], $source );
}
foreach ( $rules as $rule ) {
if ( ! is_object( $rule ) ) {
return false;
}
$processor = $this->get_rule_processor->get_processor( $rule->type );
$processor_result = $processor->process( $rule, $stored_state );
$evaluation_logger && $evaluation_logger->add_result( $rule->type, $processor_result );
if ( ! $processor_result ) {
$evaluation_logger && $evaluation_logger->log();
return false;
}
}
$evaluation_logger && $evaluation_logger->log();
return true;
}
}