Sindbad~EG File Manager

<?php

namespace Give\Onboarding\Helpers;

/**
 * Formats an associative array into a JS parsable array of objects.
 *
 * @since 2.8.0
 */
class FormatList {

	/**
	 * Format a JS value/label object where the $key is the `value` and the $value is the `label`.
	 *
	 * @param array $data
	 *
	 * @return array
	 *
	 * @since 2.8.0
	 */
	public static function fromKeyValue( $data ) {
		return self::format(
			$data,
			function( $key, $value ) {
				return [
					'value' => $key,
					'label' => $value,
				];
			}
		);
	}

	/**
	 * Format a JS value/label object where the $key is the `label` and the $value is the `value`.
	 *
	 * @param array $data
	 *
	 * @return array
	 *
	 * @since 2.8.0
	 */
	public static function fromValueKey( $data ) {
		return self::format(
			$data,
			function( $key, $value ) {
				return [
					'value' => $value,
					'label' => $key,
				];
			}
		);
	}

	/**
	 * A higher-order function to format a JS value/label object.
	 *
	 * @param array $data
	 * @param callable $function
	 *
	 * @return array
	 *
	 * @since 2.8.0
	 */
	protected static function format( $data, $function ) {
		return array_map(
			$function,
			array_keys( $data ),
			array_values( $data )
		);
	}
}