<?php
class CreatingAndTransmittingParametersForRefund {
    private int $marketPlace;
    private string $secretKey;
    private $items_receipt;
    private $items_receipt2;
    private $items_receipt3;
    private $message;
    private $jsonString;
    private $request_url;

    public function __construct($jsonString) 
    {
        $this->jsonString = $jsonString;
        $this->marketPlace = $this->jsonString['marketPlace'] ?? null;;
        $this->secretKey = $this->jsonString['secretKey'] ?? null;
        $this->request_url = $this->jsonString['domain'] ?? null;
        $this->items_receipt = [];
        $this->items_receipt2 = []; 
        $this->message = [];

    }

    public function addItemToReceipt(string $text, int $quantity, float $price, float $amount)
    {
        $this->items_receipt[] = [
            "text" => $text,
            "quantity" => $quantity,
            "price" => $price,
            "amount" => $amount,
            "tax" => "vat110",
            "type" => "full_prepayment",
            "object" => "commodity",
            "unit" => "шт."
        ]; 
    }

    public function processPayment() {

        $sum = 0;

        foreach ($this->items_receipt as $item)
        {
            $sum += $item['amount'];
        }

        $receipt_info = [];

        $this->message = [

            "marketPlace"=> $this->jsonString['marketPlace'],
            "orderId"=> $this->jsonString['orderId'],
            "partialRefund"=> $this->jsonString['partialRefund'],
            "refundSum"=>$sum
        ];
        
        $receipt_info["fdReceipt"] = ["taxSystem" => "", "items" => $this->items_receipt];
        $receipt_info["data"] = $receipt_info;
        
        // $array1 = $jsonString;

        // $this->message = array_merge($this->message + $receipt_info);
        // $resultArray = array_merge($array1, $this->message);

        // print_r($resultArray);

        $messageTxt = json_encode($this->message);
        $signature = hash('sha256', $messageTxt.$this->secretKey);

        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => "https://" .$this->request_url. "/merchantApi/refundPayment",
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => $messageTxt,
            CURLOPT_HTTPHEADER => [
                "Signature: $signature",
                "Content-Type: application/json"
            ]
        ]);

        $res = curl_exec($ch);
        curl_close($ch);

        return $res;

    }
}

?>