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class PaytrService
{
    // env File : $merchantId
    private $merchantId;
     // env File : $merchantKey
    private $merchantKey;
    // env File : $merchantSalt
    private $merchantSalt;
    // User IP : $userIp
    private $userIp;
    // Order No : $merchantOId
    private $merchantOId;
    // Payment Amount : $paymentAmount
    private $paymentAmount;
    // Payment Type : $paymentType - card
    private $paymentType;
    // InstallmentAmount : $installmentAmount
    private $installmentAmount;
    // maxInstallment : $maxInstallment
    private $maxInstallment;
    // Currency - $currency : TL,EUR,USD
    private $currency;
    // Test Mode : $testMode
    private $testMode;

private $timeoutLimit;

private $lang = "tr";

// Post URL : $postUrl
    private $postUrl;
    // Cart or Basket : $userBasket
    private $userBasket;
    // Token : $token
    private $token;
    // Success URL : $merchantOkUrl
    private $merchantOkUrl;
    // Error URL : $merchantFailUrl
    private $merchantFailUrl;
    // Debug Mode : $debug
    private $debug;
    // E-Mail Address : $email
    private $email;

private $phone;

private $userName;

private $userAddress;

public function __construct()
    {
        $this->merchantId   = env("PAYTR_MERCHANT_ID");
        $this->merchantKey  = env("PAYTR_MERCHANT_KEY");
        $this->merchantSalt = env("PAYTR_MERCHANT_SALT");

$this->merchantOkUrl   = route("paytr.success");
        $this->merchantFailUrl = route("paytr.error");
    }

public function basket($baskets)
    {
        return $this->userBasket = htmlentities(json_encode($baskets));
    }

public function generateToken()
    {
        // $merchant_id .$user_ip .$merchant_oid .$email .$payment_amount .$user_basket.$no_installment.$max_installment.$currency.$test_mode
        $hashStr = $this->merchantId .$this->userIp .$this->merchantOId .$this->email .$this->paymentAmount .$this->userBasket.$this->installmentAmount.$this->maxInstallment.$this->currency.$this->testMode;
        $this->token = base64_encode(hash_hmac('sha256',$hashStr.$this->merchantSalt,$this->merchantKey,true));
    }

public function getToken()
    {
        return $this->token;
    }

public function sendData($data,$price,$baskets)
    {

}

public function getPostData($data,$price = 1,$baskets)
    {
        $basketArray             = $this->basket($baskets); // Müşteri Sepet
        $this->userIp            = request()->ip(); // Müşteri IP Adres
        $this->timeoutLimit      = "30"; // Dakika Olarak Zaman Aşımı
        $this->debug             = 1;
        $this->testMode          = 0; // Test Mod
        $this->installmentAmount = 0; // Taksit yapılmasını istemiyorsanız, sadece tek çekim sunacaksanız 1 yapın
        $this->maxInstallment    = 0; // Taksit
        $this->currency          = "TL";   // Para Birimi : TL,EUR,USD
        $this->lang              = "tr"; // Dil TR
        $this->paymentAmount     = (int) $price; // Sepet Fiyat
        $this->paymentType       = "card"; // Ödeme Tipi Kart
        $this->email             = $data["email"] ?? 'testmode@paytr.com'; // Müşteri Email
        $this->userName          = $data["name"];
        $this->userAddress       = $data["address"];
        $this->phone             = $data["phone"];
        $this->merchantOId       = uniqid(); // Sipariş Numarası
        $this->postUrl = "https://www.paytr.com/odeme"; // URL Adresi
        $this->userBasket = $basketArray;
       $this->generateToken();

}
}