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Viewing / Editing File: ProcessController.php

<?php

namespace App\Http\Controllers\User\Gateway\PayPal;

use App\Http\Controllers\Controller;
use App\Models\Invoice;
use App\Models\Transaction;
use App\Notifications\InvoicePayment;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use PayPal\Checkout\Requests\OrderCaptureRequest;
use PayPal\Http\Environment\ProductionEnvironment;
use PayPal\Http\Environment\SandboxEnvironment;
use PayPal\Http\PayPalClient;

class ProcessController extends Controller {

/**
	 * Create a new controller instance.
	 *
	 * @return void
	 */
	public function __construct() {
		ini_set('error_reporting', E_ALL);
		ini_set('display_errors', '1');
		ini_set('display_startup_errors', '1');

date_default_timezone_set(get_option('timezone', 'Asia/Dhaka'));
	}

/**
	 * Process Payment Gateway
	 *
	 * @return \Illuminate\Http\Response
	 */
	public static function process($invoice, $slug) {
		$data = array();
		$data['callback_url'] = route('callback.' . $slug);
		$data['custom'] = $invoice->id;
		$data['view'] = 'backend.guest.invoice.gateway.' . $slug;

return json_encode($data);
	}

/**
	 * Callback function from Payment Gateway
	 *
	 * @return \Illuminate\Http\Response
	 */
	public function callback(Request $request) {
		@ini_set('max_execution_time', 0);
		@set_time_limit(0);

$invoice = Invoice::withoutGlobalScopes()
			->with('business')
			->where('id', $request->invoice_id)
			->where('status', '!=', 2)
			->where('status', '!=', 0)
			->where('status', '!=', 99)
			->first();

$gateway = json_decode(get_business_option($request->slug, null, $invoice->business_id));

// Creating an environment
		$clientId = $gateway->client_id;
		$clientSecret = $gateway->client_secret;

if ($gateway->environment == 'sandbox') {
			$environment = new SandboxEnvironment($clientId, $clientSecret);
		} else {
			$environment = new ProductionEnvironment($clientId, $clientSecret);
		}

$client = new PayPalClient($environment);

$payPalRequest = new OrderCaptureRequest($request->order_id);

try {
			$response = $client->send($payPalRequest);
			$result = json_decode((string) $response->getBody());

if ($result->status == 'COMPLETED') {
				$amount = $result->purchase_units[0]->amount->value;

//Update Transaction
				$deuAmount = $invoice->grand_total - $invoice->paid;
				if ($deuAmount <= $amount) {
					DB::beginTransaction();

$transaction = new Transaction();
					$transaction->trans_date = now();
					$transaction->account_id = $gateway->account;
					$transaction->method = $request->slug;
					$transaction->dr_cr = 'cr';
					$transaction->type = 'income';
					$transaction->amount = convert_currency($invoice->business->currency, $transaction->account->currency, $amount);
					$transaction->ref_amount = $amount;
					$transaction->currency_rate = $transaction->ref_amount / $transaction->amount;
					$transaction->description = _lang('Invoice Payment') . ' #' . $invoice->invoice_number;
					$transaction->ref_id = $invoice->id;
					$transaction->ref_type = 'invoice';
					$transaction->user_id = $invoice->user_id;
					$transaction->business_id = $invoice->business_id;

$transaction->saveQuietly();

$invoice->paid = $invoice->paid + $transaction->ref_amount;
					$invoice->status = 3; //Partially Paid
					if ($invoice->paid >= $invoice->grand_total) {
						$invoice->status = 2; //Paid
					}
					$invoice->save();

DB::commit();
				}

try {
					$invoice->customer->notify(new InvoicePayment($transaction));
				} catch (\Exception $e) {}

return redirect()->route('invoices.show_public_invoice', $invoice->short_code)->with('success', _lang('Payment made successfully'));
			}

} catch (\Exception $ex) {
			return redirect()->route('invoices.payment_methods', $invoice->short_code)->with('error', $ex->getMessage());
		}
	}

}

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