<?php
namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Input;
use PayPal\Api\Amount;
use PayPal\Api\Details;
use PayPal\Api\Item;
use PayPal\Api\ItemList;
use PayPal\Api\Payer;
use PayPal\Api\Payee;
use PayPal\Api\Payment;
use PayPal\Api\PaymentExecution;
use PayPal\Api\RedirectUrls;
use PayPal\Api\Transaction;
use PayPal\Auth\OAuthTokenCredential;
use PayPal\Rest\ApiContext;
use Redirect;
use Session;
use URL;
use App\Invoice;
use App\Order;
use App\Suborder;

use Cart;
use Auth;

class TestController extends Controller
{
    private $_api_context;
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        /** PayPal api context **/
        $paypal_conf = \Config::get('paypal');
        $this->_api_context = new ApiContext(new OAuthTokenCredential(
                $paypal_conf['client_id'],
                $paypal_conf['secret'])
        );
        $this->_api_context->setConfig($paypal_conf['settings']);
    }
    public function index()
    {
        return view('webstore.test');
    }

    public function payWithpaypal(Request $request)
    {
        # We set the payment method to PayPal
        $payer = new Payer();
        $payer->setPaymentMethod('paypal');

        $items[] = [
            'name' => 'Item 1',
            'quantity' => 1,
            'currency' => 'USD',
            'price' => '20'
        ];

        $item_1 = new Item();
        $item_1->setName('Item 1')
            ->setCurrency('USD')
            ->setQuantity(1)
            ->setPrice(5);

        $item_2 = new Item();
        $item_2->setName('Item 2')
            ->setCurrency('USD')
            ->setQuantity(1)
            ->setPrice(5);

        $item_list = new ItemList();
        $item_list->setItems(array($item_1, $item_2));

        $amount = new Amount();
        $amount->setCurrency('USD')
            ->setTotal(10);

        $transaction = new Transaction();
        $transaction->setAmount($amount);

        $payee = new Payee();
        $payee->setEmail("tenant@test.com");
        $transaction->setPayee($payee)
            ->setItemList($item_list)
            ->setDescription('Your transaction description');

        $redirect_urls = new RedirectUrls();
        $redirect_urls->setReturnUrl(URL::to('status')) /** Specify return URL **/
        ->setCancelUrl(URL::to('status'));

        $payment = new Payment();
        $payment->setIntent('Sale')
            ->setPayer($payer)
            ->setRedirectUrls($redirect_urls)
            ->setTransactions(array($transaction));

        try {
            $payment->create($this->_api_context);
        } catch (\PayPal\Exception\PPConnectionException $ex) {
            if (\Config::get('app.debug')) {
                \Session::put('error', 'Connection timeout');
                return Redirect::to('/');
            } else {
                \Session::put('error', 'Some error occur, sorry for inconvenient');
                return Redirect::to('/');
            }
        }
        foreach ($payment->getLinks() as $link) {
            if ($link->getRel() == 'approval_url') {
                $redirect_url = $link->getHref();
                break;
            }
        }
        /** add payment ID to session **/
        Session::put('paypal_payment_id', $payment->getId());
        if (isset($redirect_url)) {
            /** redirect to paypal **/
            return Redirect::away($redirect_url);
        }
        \Session::put('error', 'Unknown error occurred');
        return Redirect::to('/');
    }
    public function getPaymentStatus()
    {
        /** Get the payment ID before session clear **/
        $payment_id = Session::get('paypal_payment_id');
        /** clear the session payment ID **/
        Session::forget('paypal_payment_id');
        if (empty(Input::get('PayerID')) || empty(Input::get('token'))) {
            \Session::put('error', 'Payment failed');
            return Redirect::to('/');
        }
        $payment = Payment::get($payment_id, $this->_api_context);
        $execution = new PaymentExecution();
        $execution->setPayerId(Input::get('PayerID'));
        /**Execute the payment **/
        $result = $payment->execute($execution, $this->_api_context);
        if ($result->getState() == 'approved') {

            /* Save order in database */
            \Session::put('success', 'Payment success');
            return Redirect::to('/');
        }
        \Session::put('error', 'Payment failed');
        return Redirect::to('/');
    }
}