/home/kueuepay/public_html/app/Traits/PaymentGateway/Stripe.php
<?php
namespace App\Traits\PaymentGateway;

use Exception;
use Stripe\StripeClient;
use Illuminate\Support\Str;
use App\Models\TemporaryData;
use App\Http\Helpers\PaymentGateway;
use App\Constants\PaymentGatewayConst;

trait Stripe {

    private $stripe_gateway_credentials;
    private $request_credentials;
 
    public function stripeInit($output = null) {
        if(!$output) $output = $this->output;
        return $this->createStripeCheckout($output);
    }

    public function createStripeCheckout($output) {

        $request_credentials = $this->getStripeRequestCredentials($output);
        $stripe_client = new StripeClient($request_credentials->token);

        $temp_record_token = generate_unique_string('temporary_datas','identifier',60);
        $this->setUrlParams("token=" . $temp_record_token); // set Parameter to URL for identifying when return success/cancel

        $redirection = $this->getRedirection();
        $url_parameter = $this->getUrlParams();

        $user = auth()->guard(get_auth_guard())->user();

        try{
            $checkout = $stripe_client->checkout->sessions->create([
                'mode'              => 'payment',
                'success_url'       => $this->setGatewayRoute($redirection['return_url'],PaymentGatewayConst::STRIPE,$url_parameter),
                'cancel_url'        => $this->setGatewayRoute($redirection['cancel_url'],PaymentGatewayConst::STRIPE,$url_parameter),
                'customer_email'    => $user->email,
                'line_items'        => [
                    [
                        'price_data'    => [
                            'product_data'      => [
                                'name'          => "Add Money",
                                'description'   => "Add Money To Wallet (" . $output['wallet']->currency->code . "). Payment Currency " . $output['currency']->currency_code,
                                'images'        => [
                                    [
                                        get_logo()
                                    ]
                                ]
                            ],
                            'unit_amount_decimal'   => get_amount(($output['amount']->total_amount * 100),null,2), // as per stripe policy,
                            'currency'              => $output['currency']->currency_code,
                        ],
                        'quantity'                  => 1,
                    ]
                ],
            ]);

            $response_array = json_decode(json_encode($checkout->getLastResponse()->json), true);

            $this->stripeJunkInsert($response_array, $temp_record_token);
        }catch(Exception $e) {
            throw new Exception($e->getMessage());
        }

        $redirect_url = $response_array['url'] ?? null;
        if(!$redirect_url) throw new Exception("Something went wrong! Please try again");

        if(request()->expectsJson()) { // API Response
            $this->output['redirection_response']   = $response_array;
            $this->output['redirect_links']         = [];
            $this->output['redirect_url']           = $redirect_url;
            return $this->get();
        }

        return redirect()->away($response_array['url']);
    }

    public function stripeJunkInsert($response, $temp_identifier) {
        $output = $this->output;

        $data = [
            'gateway'       => $output['gateway']->id,
            'currency'      => $output['currency']->id,
            'amount'        => json_decode(json_encode($output['amount']),true),
            'response'      => $response,
            'wallet_table'  => $output['wallet']->getTable(),
            'wallet_id'     => $output['wallet']->id,
            'creator_table' => auth()->guard(get_auth_guard())->user()->getTable(),
            'creator_id'    => auth()->guard(get_auth_guard())->user()->id,
            'creator_guard' => get_auth_guard(),
        ];

        return TemporaryData::create([
            'type'          => PaymentGatewayConst::TYPEADDMONEY,
            'identifier'    => $temp_identifier,
            'data'          => $data,
        ]);
    }

    public function getStripeCredentials($output) 
    {
        $gateway = $output['gateway'] ?? null;
        if(!$gateway) throw new Exception("Payment gateway not available");

        $test_publishable_key_sample = ['test publishable','test publishable key','test public key','sandbox public key', 'test public','public key test','public test', 'stripe test public key','stripe test sandbox key'];
        $test_secret_key_sample = ['test secret','test secret key','test private','test private key','test live key','test production key','test production','test live','stripe test secret key','stripe test production key'];

        $live_publishable_key_sample    = ['live publishable','live publishable key','live public key','live public key', 'live public','public key live','public live', 'stripe live public key','stripe live sandbox key'];
        $live_secret_key_sample         = ['live secret','live secret key','live private','live private key','live live key','live production key','live production','live live','stripe live secret key','stripe live production key'];

        $test_publishable_key    = PaymentGateway::getValueFromGatewayCredentials($gateway,$test_publishable_key_sample);
        $test_secret_key         = PaymentGateway::getValueFromGatewayCredentials($gateway,$test_secret_key_sample);

        $live_publishable_key    = PaymentGateway::getValueFromGatewayCredentials($gateway,$live_publishable_key_sample);
        $live_secret_key         = PaymentGateway::getValueFromGatewayCredentials($gateway,$live_secret_key_sample);
        
        $mode = $gateway->env;
        
        $gateway_register_mode = [
            PaymentGatewayConst::ENV_SANDBOX => PaymentGatewayConst::ENV_SANDBOX,
            PaymentGatewayConst::ENV_PRODUCTION => PaymentGatewayConst::ENV_PRODUCTION,
        ];

        if(array_key_exists($mode,$gateway_register_mode)) {
            $mode = $gateway_register_mode[$mode];
        }else {
            $mode = PaymentGatewayConst::ENV_SANDBOX;
        }

        $credentials = (object) [
            'test_publishable_key'          => $test_publishable_key,
            'test_secret_key'               => $test_secret_key,
            'live_publishable_key'          => $live_publishable_key,
            'live_secret_key'               => $live_secret_key,
            'mode'                          => $mode
        ];

        $this->stripe_gateway_credentials = $credentials;

        return $credentials;
    }

    public function getStripeRequestCredentials($output = null) 
    {
        if(!$this->stripe_gateway_credentials) $this->getStripeCredentials($output);
        $credentials = $this->stripe_gateway_credentials;
        if(!$output) $output = $this->output;

        $request_credentials = [];
        if($output['gateway']->env == PaymentGatewayConst::ENV_PRODUCTION) {
            $request_credentials['token']   = $credentials->live_secret_key;
        }else {
            $request_credentials['token']   = $credentials->test_secret_key;
        }

        $this->request_credentials = (object) $request_credentials;
        return (object) $request_credentials;
    }

    public function stripeSuccess($output) {
        $output['capture']      = $output['tempData']['data']->response ?? "";
        // need to insert new transaction in database
        try{
            $this->createTransaction($output);
        }catch(Exception $e) {
            throw new Exception($e->getMessage());
        }
    }

    public function isStripe($gateway) 
    {
        $search_keyword = ['stripe','stripe gateway','gateway stripe','stripe payment gateway'];
        $gateway_name = $gateway->name;

        $search_text = Str::lower($gateway_name);
        $search_text = preg_replace("/[^A-Za-z0-9]/","",$search_text);
        foreach($search_keyword as $keyword) {
            $keyword = Str::lower($keyword);
            $keyword = preg_replace("/[^A-Za-z0-9]/","",$keyword);
            if($keyword == $search_text) {
                return true;
                break;
            }
        }
        return false;
    }
    
}
Authentication

Authentication

To access the Kueue Pay Developer API, you’ll need an API key. You can obtain your API key by logging in to your Kueue Pay merchant account and navigating to the API section. Collect Client ID , Secret ID & Merchant ID Carefully. Keep your API key confidential and do not share it publicly.

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