<?php


namespace MirfalahTech\Laravel\Payment\Gateway\RazerPay;


use Illuminate\Http\Request;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Response as Res;
use MirfalahTech\Laravel\Payment\Contracts\PayableEntity;
use MirfalahTech\Laravel\Payment\Contracts\PaymentGatewayDriver;
use Symfony\Component\HttpFoundation\Response;

class RazerPayDriver implements PaymentGatewayDriver
{
    /**
     * @var string
     */
    protected $endpoint;

    /**
     * @var string
     */
    protected $merchant_id;

    /**
     * @var string
     */
    protected $secret_key;
    /**
     * @var string
     */
    protected $verify_key;

    public function __construct(string $endpoint, string $merchant_id, string $verify_key, string $secret_key)
    {
        $this->endpoint = rtrim($endpoint, '/');
        $this->merchant_id = $merchant_id;
        $this->secret_key = $secret_key;
        $this->verify_key = $verify_key;
    }

    public function createPaymentURL(PayableEntity $payable, array $options = []): string
    {
        $order_id = urlencode($payable->getBillId());
        $bill_name = urlencode($payable->getBillName());
        $bill_email = $payable->getBillEmail();
        $bill_mobile = $payable->getBillPhoneNumber();
        $detail = urlencode($payable->getBillDescription());
        $country = $payable->getBillCountry();
        $bill_desc = urlencode(preg_replace('/[^A-Z0-9,\-_]/i', '_', $detail));
        $amount = sprintf('%0.2f', $payable->getBillAmount());
        $currency = $payable->getBillCurrency();
        $verify_code = md5($amount . $this->merchant_id . $payable->getBillId() . $this->verify_key);

        $query = array_merge(
            compact(
                'amount', 'order_id', 'bill_name', 'bill_email', 'bill_mobile',
                'bill_desc', 'country', 'verify_code', 'currency'
            ),
            Arr::only($options, ['channel'])
        );

        return "$this->endpoint/MOLPay/pay/$this->merchant_id/?" .
            http_build_query($query);
    }

    public function verifyGatewayReturn(Request $request): bool
    {
        $tranID = $request->request->get('tranID');
        $order_id = $request->request->get('orderid');
        $status = $request->request->get('status');
        $domain = $request->request->get('domain');
        $amount = $request->request->get('amount');
        $currency = $request->request->get('currency');
        $appcode = $request->request->get('appcode');
        $pay_date = $request->request->get('paydate');

        $key0 = md5($tranID . $order_id . $status . $domain . $amount . $currency);

        $key1 = md5($pay_date . $domain . $key0 . $appcode . $this->secret_key);

        return $key1 == $request->request->get('skey');
    }

    public function verifyGatewayCallback(Request $request, Response &$response = null): bool
    {
        $response = $request->request->has('nbcb') ?
            Res::make('CBTOKEN:MPSTATOK') :
            Res::make('OK');

        return $this->verifyGatewayReturn($request);
    }

    public function getBillIdFromRequest(Request $request){
        return $request->query->get('orderid');
    }
}