IpaymuGate.php

<?php

namespace App\Libraries;

use App\Entities\User;
use App\Entities\Purchase;
use Config\Services;
use WpOrg\Requests\Requests;

/**
 * @codeCoverageIgnore
 */
class IpaymuGate
{
	/**
	 * @param $config
	 * @param $params
	 *
	 * @throws Unauthorized
	 *
	 * @return mixed
	 */
	function genSignature($body, $va, $secret)
	{
		$requestBody  = strtolower(hash('sha256', $body));
		$stringToSign = 'POST:' . $va . ':' . $requestBody . ':' . $secret;
		$signature    = hash_hmac('sha256', $stringToSign, $secret);

		return $signature;
	}

	public function request($params)
	{
		$va = Services::request()->config->ipaymuVa;
		$secret = Services::request()->config->ipaymuKey;
		$body = json_encode($params, JSON_UNESCAPED_SLASHES);
		$signature = $this->genSignature($body, $va, $secret);
		$timestamp = Date('YmdHis');
		$head = [
			'Accept' => 'application/json',
			'Content-Type' => 'application/json',
			'va' => $va,
			'signature' => $signature,
			'timestamp' => $timestamp,
		];

		$url = ENVIRONMENT === 'production' ? 'https://my.ipaymu.com/api/v2/payment' : 'https://sandbox.ipaymu.com/api/v2/payment';
		$response = Requests::post($url, $head, $body, ['timeout' => 30]);
		log_message('notice', 'PAYMENT IPAYMU :::: ' . json_encode($head) . '::::' . $body . '::::' . $response->body);
		return json_decode($response->body, true);
	}

	/**
	 * @param Purchase[] $purchases
	 * @param User $user
	 * @return mixed
	 */
	public function createPayment(array $purchases, User $user)
	{
		$va = Services::request()->config->ipaymuVa;
		$secret = Services::request()->config->ipaymuSecret;

		$carts = [];
		$ids = [];
		$chals = [];
		foreach ($purchases as $item) {
			$carts['product'][] = "" . $item->nice_message;
			$carts['price'][] = "" . $item->metadata->price;
			$carts['description'][] =  "" . $item->nice_message;
			$carts['qty'][] = "1";
			$ids[] = $item->id;
			$chals[] = $item->metadata->_challenge;
		}
		$ids = implode(',', $ids);
		$chals = implode(',', $chals);
    	$body = array_merge([
			'account' => $va,
			'buyerName' => $user->name,
			'buyerEmail' => $user->email,
			'returnUrl' => base_url("user/host/?message=payment-return"),
			'cancelUrl' => base_url("user/host/?message=payment-cancel"),
			'notifyUrl' =>  base_url("api/notify?id={$ids}&challenge={$chals}&secret=$secret"),
			'referenceId' => strval($purchases[0]->id),
		], $carts);
		return $this->request($body);
	}
}