<?php

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/**

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* A utility class that provides functionality for manipulating arrays.

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*

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* @package automattic/jetpack

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*/

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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/**

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* WordAds_Array_Utils Class.

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*/

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final class WordAds_Array_Utils {

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/**

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* Converts a (potentially nested) array to a JavaScript object.

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*

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* Note: JS code strings should be prefixed with 'js:'.

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*

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* @param array $value The array to convert to a JavaScript object.

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* @param bool $in_list True if we are processing an inner list (non-associative array).

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*

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* @return string String representation of the JavaScript object

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*/

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public static function array_to_js_object( array $value, bool $in_list = false ): string {

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$properties = array();

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foreach ( $value as $k => $v ) {

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// Don't set property key for values from non-associative array.

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$property_key = $in_list ? '' : "'$k': ";

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if ( is_array( $v ) ) {

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// Check for empty array.

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if ( array() === $v ) {

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$properties[] = "'$k': []";

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continue;

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}

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// Check if this is a list and not an associative array.

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if ( array_keys( $v ) === range( 0, count( $v ) - 1 ) ) {

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// Apply recursively.

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$properties[] = $property_key . '[ ' . self::array_to_js_object( $v, true ) . ' ]';

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} else {

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// Apply recursively.

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$properties[] = $property_key . self::array_to_js_object( $v );

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}

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} elseif ( is_string( $v ) && strpos( $v, 'js:' ) === 0 ) {

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// JS code. Strip the 'js:' prefix.

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$properties[] = $property_key . substr( $v, 3 );

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} elseif ( is_string( $v ) ) {

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$properties[] = $property_key . "'" . addcslashes( $v, "'" ) . "'";

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} elseif ( is_bool( $v ) ) {

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$properties[] = $property_key . ( $v ? 'true' : 'false' );

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} elseif ( $v === null ) {

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$properties[] = $property_key . 'null';

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} else {

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$properties[] = $property_key . $v;

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}

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}

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$output = implode( ', ', $properties );

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if ( ! $in_list ) {

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$output = '{ ' . $output . ' }';

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}

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return $output;

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}

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}

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