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<?php
/**
 * Zip AI - Utils.
 *
 * This file contains all the utility functions of Zip AI.
 * Utilities manipulate data and perform actions that are not directly related to the library.
 *
 * @package zip-ai
 */

namespace ZipAI\Classes;

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * The Utils Class.
 */
class Utils {
	/**
	 * Encrypt data using base64.
	 *
	 * @param string $input The input string which needs to be encrypted.
	 * @since 1.0.0
	 * @return string The encrypted string.
	 */
	public static function encrypt( $input ) {
		// If the input is empty or not a string, then abandon ship.
		if ( empty( $input ) || ! is_string( $input ) ) {
			return '';
		}

		// Encrypt the input and return it.
		$base_64 = base64_encode( $input ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
		$encode  = rtrim( $base_64, '=' );
		return $encode;
	}

	/**
	 * Decrypt data using base64.
	 *
	 * @param string $input The input string which needs to be decrypted.
	 * @since 1.0.0
	 * @return string The decrypted string.
	 */
	public static function decrypt( $input ) {
		// If the input is empty or not a string, then abandon ship.
		if ( empty( $input ) || ! is_string( $input ) ) {
			return '';
		}

		// Decrypt the input and return it.
		$base_64 = $input . str_repeat( '=', strlen( $input ) % 4 );
		$decode  = base64_decode( $base_64 ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode
		return $decode;
	}
}