exchange-2.0/app/Classes/Modules/Vouchers/Services/ValidatesVoucher.php

<?php

namespace App\Classes\Modules\Vouchers\Services;

use ErrorException;
use Illuminate\Support\Facades\Log;

class ValidatesVoucher
{

    /** @var VoucherifyClient */
    private $voucherifyClient;


    /**
     * ValidatesVoucher constructor.
     *
     */
    public function __construct()
    {
        $this->voucherifyClient = createVoucherifyClient();
    }

     /**
     * @param string $voucherCode
     * @param float $amount
     * @param object $employee
     * @return null|object
     * @throws ErrorException
     */
    public function execute(string $voucherCode, ?float $amount, ?object $employee)
    {
        try {
            if($amount){
                $result = $this->voucherifyClient->validations->validateVoucher($voucherCode, [
                    "customer" => [
                        // "id" => $employee->id,
                        "name" => $employee->name,
                        "email" => $employee->email,
                    ],
                    "order" => [
                        "amount" => $amount * 100 //converting it to cents
                        ]
                    ]);
            }
            else{
                $res = $this->voucherifyClient->validations->validateVoucher($voucherCode);
                $result = [
                    "valid" => $res->valid,
                    "code" => $res->code
                ];
                if (isset($res->reason)) {
                    $result["reason"] = $res->reason;
                }
            }

            return $result;
        } catch (\Voucherify\ClientException $e) {
            // throw $e;
            Log::error('ValidatesVoucher error:' . $e);
            return null;
        }
    }
}