ebayShop/app/Http/Controllers/Payment/BkashController.php

<?php

namespace App\Http\Controllers\Payment;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\CustomerPackage;
use App\Models\SellerPackage;
use App\Models\CombinedOrder;
use App\Http\Controllers\CustomerPackageController;
use App\Http\Controllers\SellerPackageController;
use App\Http\Controllers\WalletController;
use App\Http\Controllers\CheckoutController;
use Session;

class BkashController extends Controller
{
    private $base_url;
    public function __construct()
    {
        if(get_setting('bkash_sandbox', 1)){
            $this->base_url = "https://checkout.sandbox.bka.sh/v1.2.0-beta/";
        }
        else {
            $this->base_url = "https://checkout.pay.bka.sh/v1.2.0-beta/";
        }
    }

    public function pay(){
        $amount = 0;
        if(Session::has('payment_type')){
            if(Session::get('payment_type') == 'cart_payment'){
                $combined_order = CombinedOrder::findOrFail(Session::get('combined_order_id'));
                $amount = round($combined_order->grand_total);
            }
            elseif (Session::get('payment_type') == 'wallet_payment') {
                $amount = round(Session::get('payment_data')['amount']);
            }
            elseif (Session::get('payment_type') == 'customer_package_payment') {
                $customer_package = CustomerPackage::findOrFail(Session::get('payment_data')['customer_package_id']);
                $amount = round($customer_package->amount);
            }
            elseif (Session::get('payment_type') == 'seller_package_payment') {
                $seller_package = SellerPackage::findOrFail(Session::get('payment_data')['seller_package_id']);
                $amount = round($seller_package->amount);
            }
        }

        $request_data = array('app_key'=> env('BKASH_CHECKOUT_APP_KEY'), 'app_secret'=>env('BKASH_CHECKOUT_APP_SECRET'));

        $url = curl_init($this->base_url.'checkout/token/grant');
        $request_data_json=json_encode($request_data);

        $header = array(
                'Content-Type:application/json',
                'username:'.env('BKASH_CHECKOUT_USER_NAME'),
                'password:'.env('BKASH_CHECKOUT_PASSWORD')
                );
        curl_setopt($url,CURLOPT_HTTPHEADER, $header);
        curl_setopt($url,CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($url,CURLOPT_RETURNTRANSFER, true);
        curl_setopt($url,CURLOPT_POSTFIELDS, $request_data_json);
        curl_setopt($url,CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($url, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);

        $resultdata = curl_exec($url);
        curl_close($url);

        $token = json_decode($resultdata)->id_token;

        Session::put('bkash_token', $token);
        Session::put('payment_amount', $amount);

        return view('frontend.bkash.index');
    }

    public function checkout(Request $request){
        $auth = Session::get('bkash_token');

        $requestbody = array(
            'amount' => Session::get('payment_amount'),
            'currency' => 'BDT',
            'intent' => 'sale',
            'merchantInvoiceNumber' => "Inv".Session::get('combined_order_id')
        );
        $url = curl_init($this->base_url.'checkout/payment/create');
        $requestbodyJson = json_encode($requestbody);

        $header = array(
            'Content-Type:application/json',
            'Authorization:' . $auth,
            'X-APP-Key:'.env('BKASH_CHECKOUT_APP_KEY')
        );

        curl_setopt($url, CURLOPT_HTTPHEADER, $header);
        curl_setopt($url, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($url, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($url, CURLOPT_POSTFIELDS, $requestbodyJson);
        curl_setopt($url, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($url, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
        $resultdata = curl_exec($url);
        curl_close($url);

        return $resultdata;
    }

    public function excecute(Request $request){
        $paymentID = $request->paymentID;
        $auth = Session::get('bkash_token');

        $url = curl_init($this->base_url.'checkout/payment/execute/'.$paymentID);
        $header = array(
            'Content-Type:application/json',
            'Authorization:' . $auth,
            'X-APP-Key:'.env('BKASH_CHECKOUT_APP_KEY')
        );

        curl_setopt($url,CURLOPT_HTTPHEADER, $header);
        curl_setopt($url,CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($url,CURLOPT_RETURNTRANSFER, true);
        curl_setopt($url,CURLOPT_FOLLOWLOCATION, 1);
        $resultdata = curl_exec($url);
        curl_close($url);

        return $resultdata;
    }

    public function success(Request $request){
        $payment_type = Session::get('payment_type');

        if ($payment_type == 'cart_payment') {
            return (new CheckoutController)->checkout_done(Session::get('combined_order_id'), $request->payment_details);
        }
        if ($payment_type == 'wallet_payment') {
            return (new WalletController)->wallet_payment_done(Session::get('payment_data'), $request->payment_details);
        }
        if ($payment_type == 'customer_package_payment') {
            return (new CustomerPackageController)->purchase_payment_done(Session::get('payment_data'), $request->payment_details);
        }
        if($payment_type == 'seller_package_payment') {
            return (new SellerPackageController)->purchase_payment_done(Session::get('payment_data'), $request->payment_details);
        }
    }
}