<?php
declare( strict_types = 1 );
namespace Automattic\WooCommerce\Admin\RemoteSpecs\RuleProcessors;
/**
* Evaluates `overrides` property in the spec and returns the evaluated spec.
*/
class EvaluateOverrides {
/**
* Evaluates the spec and returns a status.
*
* @param array $spec The spec to evaluate.
* @param array $context The context variables.
*
* @return array The evaluated spec.
*/
public function evaluate( array $spec, array $context = array() ) {
$rule_evaluator = new RuleEvaluator( new GetRuleProcessorForContext( $context ) );
foreach ( $spec as $spec_item ) {
if ( isset( $spec_item->overrides ) && is_array( $spec_item->overrides ) ) {
foreach ( $spec_item->overrides as $override ) {
if ( ! isset( $override->rules ) || ! is_array( $override->rules ) || ! isset( $override->field ) || ! isset( $override->value ) ) {
continue;
}
if ( $rule_evaluator->evaluate( $override->rules ) ) {
// If value exisit and can be accessed directly, update it.
if ( isset( $spec_item->{$override->field} ) ) {
$spec_item->{$override->field} = $override->value;
} else {
// Otherwise, try updating it using dot notation.
$this->set_value_with_dot_notation( $spec_item, $override->field, $override->value );
}
}
}
}
}
return $spec;
}
/**
* Set a new value to $data with dot notation.
*
* This is a slightly modified version of the simple dot notation to support objects.
*
* @param mixed $data The data to update.
* @param string $path The path to the value to update.
* @param mixed $new_value The new value.
*
* @return mixed|\stdClass
*/
public function set_value_with_dot_notation( &$data, $path, $new_value ) {
$keys = explode( '.', $path );
$last_key = array_pop( $keys );
foreach ( $keys as $key ) {
if ( is_numeric( $key ) ) {
$key = (int) $key;
if ( ! isset( $data[ $key ] ) || ! is_object( $data[ $key ] ) ) {
$data[ $key ] = new \stdClass();
}
$data = &$data[ $key ];
} else {
if ( ! isset( $data->$key ) || ( ! is_array( $data->$key ) && ! is_object( $data->$key ) ) ) {
$data->$key = new \stdClass();
}
$data = &$data->$key;
}
}
// Assign the new value.
if ( is_numeric( $last_key ) ) {
$data[ (int) $last_key ] = $new_value;
} else {
$data->$last_key = $new_value;
}
return $data;
}
}