ctrlpanel/app/Http/Controllers/Admin/PaymentController.php

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Payment;
use App\Models\PaypalProduct;
use Illuminate\Contracts\Foundation\Application;
use Illuminate\Contracts\View\Factory;
use Illuminate\Contracts\View\View;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use PayPalCheckoutSdk\Core\PayPalHttpClient;
use PayPalCheckoutSdk\Core\ProductionEnvironment;
use PayPalCheckoutSdk\Core\SandboxEnvironment;
use PayPalCheckoutSdk\Orders\OrdersCaptureRequest;
use PayPalCheckoutSdk\Orders\OrdersCreateRequest;
use PayPalHttp\HttpException;

class PaymentController extends Controller
{
    protected $allowedAmounts = [
        '87',
        '350',
        '1000',
        '2000',
        '4000'
    ];

    public function index(){
        return view('admin.payments.index')->with([
            'payments' => Payment::paginate(15)
        ]);
    }

    /**
     * @param Request $request
     * @param PaypalProduct $paypalProduct
     * @return Application|Factory|View
     */
    public function checkOut(Request $request, PaypalProduct $paypalProduct)
    {
        return view('store.checkout')->with([
            'product' => $paypalProduct
        ]);
    }

    /**
     * @param Request $request
     * @param PaypalProduct $paypalProduct
     * @return RedirectResponse
     */
    public function pay(Request $request , PaypalProduct $paypalProduct)
    {
        $request = new OrdersCreateRequest();
        $request->prefer('return=representation');
        $request->body = [
            "intent"              => "CAPTURE",
            "purchase_units"      => [
                [
                    "reference_id" => uniqid(),
                    "description" => $paypalProduct->description,
                    "amount"       => [
                        "value"         => $paypalProduct->price,
                        "currency_code" => strtoupper($paypalProduct->currency_code)
                    ]
                ]
            ],
            "application_context" => [
                "cancel_url" => route('payment.cancel'),
                "return_url" => route('payment.success', ['product' => $paypalProduct->id]),
                'brand_name' =>  config('app.name', 'Laravel'),
                'shipping_preference'  => 'NO_SHIPPING'
            ]
        ];


        try {
            // Call API with your client and get a response for your call
            $response = $this->getPayPalClient()->execute($request);
            return redirect()->away($response->result->links[1]->href);

            // If call returns body in response, you can get the deserialized version from the result attribute of the response
        } catch (HttpException $ex) {
            echo $ex->statusCode;
            dd(json_decode($ex->getMessage()));
        }

    }

    /**
     * @return PayPalHttpClient
     */
    protected function getPayPalClient()
    {
        $environment = env('APP_ENV') == 'local'
            ? new SandboxEnvironment($this->getClientId(), $this->getClientSecret())
            : new ProductionEnvironment($this->getClientId(), $this->getClientSecret());

        return new PayPalHttpClient($environment);
    }

    /**
     * @return string
     */
    protected function getClientId()
    {
        return env('APP_ENV') == 'local' ? env('PAYPAL_SANDBOX_CLIENT_ID') : env('PAYPAL_CLIENT_ID');
    }

    /**
     * @return string
     */
    protected function getClientSecret()
    {
        return env('APP_ENV') == 'local' ? env('PAYPAL_SANDBOX_SECRET') : env('PAYPAL_SECRET');
    }

    /**
     * @param Request $laravelRequest
     */
    public function success(Request $laravelRequest)
    {
        $paypalProduct = PaypalProduct::findOrFail($laravelRequest->input('product'));

        $request = new OrdersCaptureRequest($laravelRequest->input('token'));
        $request->prefer('return=representation');
        try {
            // Call API with your client and get a response for your call
            $response = $this->getPayPalClient()->execute($request);
            if ($response->statusCode == 201 || $response->statusCode == 200) {

                //update credits
                Auth::user()->increment('credits', $paypalProduct->quantity);

                //update server limit
                if (Auth::user()->server_limit < 10) {
                    Auth::user()->update(['server_limit' => 10]);
                }

                //update role
                if (Auth::user()->role == 'member') {
                    Auth::user()->update(['role' => 'client']);
                }

                //store payment
                Payment::create([
                    'user_id' => Auth::user()->id,
                    'payment_id' => $response->result->id,
                    'payer_id' => $laravelRequest->input('PayerID'),
                    'type' => 'Credits',
                    'status' => $response->result->status,
                    'amount' => $paypalProduct->quantity,
                    'price' => $paypalProduct->price,
                    'payer' => json_encode($response->result->payer),
                ]);

                //redirect back to home
                return redirect()->route('home')->with('success', 'Your credit balance has been increased!');
            }

            // If call returns body in response, you can get the deserialized version from the result attribute of the response
            if (env('APP_ENV') == 'local') {
                dd($response);
            } else {
                abort(500);
            }

        } catch (HttpException $ex) {
            if (env('APP_ENV') == 'local') {
                echo $ex->statusCode;
                dd($ex->getMessage());
            } else {
                abort(422);
            }

        }

    }


    /**
     * @param Request $request
     */
    public function cancel(Request $request)
    {
        return redirect()->route('store.index')->with('success', 'Payment was Cannceled');
    }
}