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: / home / forge / alafqpharma.net / app / Packages / PaystackGateway /
Filename : NewPaystackController.php
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<?php

namespace App\Packages\PaystackGateway;

use App\Models\PaymentRequest;
use App\Models\User;
use App\Traits\Processor;
use Illuminate\Foundation\Application;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Routing\Controller;

use Illuminate\Http\Request;
use Illuminate\Routing\Redirector;
use Illuminate\Support\Facades\Config;
use Illuminate\Support\Facades\Validator;

class NewPaystackController extends Controller
{
    use Processor;

    private PaymentRequest $payment;
    private User $user;

    public function __construct(PaymentRequest $payment, User $user)
    {
        $config = $this->payment_config('paystack', 'payment_config');
        $values = false;
        if (!is_null($config) && $config->mode == 'live') {
            $values = json_decode($config->live_values);
        } elseif (!is_null($config) && $config->mode == 'test') {
            $values = json_decode($config->test_values);
        }

        if ($values) {
            $config = array(
                'publicKey' => env('PAYSTACK_PUBLIC_KEY', $values->public_key),
                'secretKey' => env('PAYSTACK_SECRET_KEY', $values->secret_key),
                'paymentUrl' => env('PAYSTACK_PAYMENT_URL', 'https://api.paystack.co'),
                'merchantEmail' => env('MERCHANT_EMAIL', $values->merchant_email),
            );
            Config::set('paystack', $config);
        }

        $this->payment = $payment;
        $this->user = $user;
    }


    public function index(Request $request): JsonResponse|Redirector|RedirectResponse
    {
        $validator = Validator::make($request->all(), [
            'payment_id' => 'required|uuid'
        ]);

        if ($validator->fails()) {
            return response()->json($this->response_formatter(GATEWAYS_DEFAULT_400, null, $this->error_processor($validator)), 400);
        }

        $data = $this->payment::where(['id' => $request['payment_id']])->where(['is_paid' => 0])->first();
        if (!isset($data)) {
            return response()->json($this->response_formatter(GATEWAYS_DEFAULT_204), 200);
        }

        $payer = json_decode($data['payer_information'], true);

        $url = "https://api.paystack.co/transaction/initialize";

        $fields = [
            'email' => $payer['email'] ?? "customer@email.com",
            'amount' => ($data['payment_amount'] ?? 0) * 100,
            'currency' => $data['currency'] ?? 'XOF',
            'reference' => (string)('REF' . time() . 'RANDOM'),
            'callback_url' => route('paystack.callback', ['payment_id' => $data['id']]),
            'metadata' => [
                'payment_id' => $data['id'],
            ]
        ];

        $fields_string = http_build_query($fields);
        $ch = curl_init();

        //set the url, number of POST vars, POST data
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            "Authorization: Bearer " . Config::get('paystack.secretKey'),
            "Cache-Control: no-cache",
        ));

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = json_decode(curl_exec($ch), true);

        if ($response['status'] && isset($response['data']['authorization_url'])) {
            return redirect($response['data']['authorization_url']);
        }

        return response()->json($this->response_formatter(GATEWAYS_DEFAULT_204), 200);
    }

    public function handleGatewayCallback(Request $request): Redirector|RedirectResponse
    {
        $paymentDetails = self::getPaystackPaymentData(request: $request);

        if ($paymentDetails['status'] === true) {
            $this->payment::where(['id' => $paymentDetails['data']['metadata']['payment_id']])->update([
                'payment_method' => 'paystack',
                'is_paid' => 1,
                'transaction_id' => $request['trxref'],
            ]);
            $data = $this->payment::where(['id' => $paymentDetails['data']['metadata']['payment_id']])->first();
            if (isset($data) && function_exists($data->success_hook)) {
                call_user_func($data->success_hook, $data);
            }
            return $this->payment_response($data, 'success');
        }

        $payment_data = $this->payment::where(['id' => $paymentDetails['data']['metadata']['payment_id']])->first();
        if (isset($payment_data) && function_exists($payment_data->failure_hook)) {
            call_user_func($payment_data->failure_hook, $payment_data);
        }
        return $this->payment_response($payment_data, 'fail');
    }

    public function cancel(Request $request): Application|JsonResponse|Redirector|RedirectResponse
    {
        $payment_data = $this->payment::where(['id' => $request['payments_id']])->first();
        if (isset($payment_data) && function_exists($payment_data->failure_hook)) {
            call_user_func($payment_data->failure_hook, $payment_data);
        }
        return $this->payment_response($payment_data, 'fail');
    }

    protected function getPaystackPaymentData(object|array $request): array
    {
        $reference = $request->query('reference');
        $curl = curl_init();

        curl_setopt_array($curl, array(
            CURLOPT_URL => "https://api.paystack.co/transaction/verify/$reference",
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_ENCODING => "",
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "GET",
            CURLOPT_HTTPHEADER => array(
                "Authorization: Bearer " . Config::get('paystack.secretKey'),
                "Cache-Control: no-cache",
            ),
        ));

        $response = curl_exec($curl);
        $err = curl_error($curl);

        curl_close($curl);
        return json_decode($response, true);
    }
}