invoiceninja/app/Services/PaymentService.php

<?php namespace App\Services;

use Utils;
use Auth;
use URL;
use DateTime;
use Event;
use Cache;
use Omnipay;
use Session;
use CreditCard;
use App\Models\Payment;
use App\Models\Account;
use App\Models\Country;
use App\Models\Client;
use App\Models\Invoice;
use App\Http\Controllers\PaymentController;
use App\Models\AccountGatewayToken;
use App\Ninja\Repositories\PaymentRepository;
use App\Ninja\Repositories\AccountRepository;
use App\Services\BaseService;
use App\Events\PaymentWasCreated;

class PaymentService extends BaseService
{
    public $lastError;
    protected $datatableService;
    
    protected static $refundableGateways = array(
        GATEWAY_STRIPE
    );

    public function __construct(PaymentRepository $paymentRepo, AccountRepository $accountRepo, DatatableService $datatableService)
    {
        $this->datatableService = $datatableService;
        $this->paymentRepo = $paymentRepo;
        $this->accountRepo = $accountRepo;
    }

    protected function getRepo()
    {
        return $this->paymentRepo;
    }

    public function createGateway($accountGateway)
    {
        $gateway = Omnipay::create($accountGateway->gateway->provider);
        $gateway->initialize((array) $accountGateway->getConfig());

        if ($accountGateway->isGateway(GATEWAY_DWOLLA)) {
            if ($gateway->getSandbox() && isset($_ENV['DWOLLA_SANDBOX_KEY']) && isset($_ENV['DWOLLA_SANSBOX_SECRET'])) {
                $gateway->setKey($_ENV['DWOLLA_SANDBOX_KEY']);
                $gateway->setSecret($_ENV['DWOLLA_SANSBOX_SECRET']);
            } elseif (isset($_ENV['DWOLLA_KEY']) && isset($_ENV['DWOLLA_SECRET'])) {
                $gateway->setKey($_ENV['DWOLLA_KEY']);
                $gateway->setSecret($_ENV['DWOLLA_SECRET']);
            }
        }

        return $gateway;
    }

    public function getPaymentDetails($invitation, $accountGateway, $input = null)
    {
        $invoice = $invitation->invoice;
        $account = $invoice->account;
        $key = $invoice->account_id.'-'.$invoice->invoice_number;
        $currencyCode = $invoice->client->currency ? $invoice->client->currency->code : ($invoice->account->currency ? $invoice->account->currency->code : 'USD');

        if ($input) {
            $data = self::convertInputForOmnipay($input);
            $data['email'] = $invitation->contact->email;
            Session::put($key, $data);
        } elseif (Session::get($key)) {
            $data = Session::get($key);
        } else {
            $data = $this->createDataForClient($invitation);
        }

        $card = !empty($data['number']) ? new CreditCard($data) : null;
        $data = [
            'amount' => $invoice->getRequestedAmount(),
            'card' => $card,
            'currency' => $currencyCode,
            'returnUrl' => URL::to('complete'),
            'cancelUrl' => $invitation->getLink(),
            'description' => trans('texts.' . $invoice->getEntityType()) . " {$invoice->invoice_number}",
            'transactionId' => $invoice->invoice_number,
            'transactionType' => 'Purchase',
        ];

        if ($accountGateway->isGateway(GATEWAY_PAYPAL_EXPRESS) || $accountGateway->isGateway(GATEWAY_PAYPAL_PRO)) {
            $data['ButtonSource'] = 'InvoiceNinja_SP';
        };

        return $data;
    }

    public function convertInputForOmnipay($input)
    {
        $data = [
            'firstName' => $input['first_name'],
            'lastName' => $input['last_name'],
            'number' => isset($input['card_number']) ? $input['card_number'] : null,
            'expiryMonth' => isset($input['expiration_month']) ? $input['expiration_month'] : null,
            'expiryYear' => isset($input['expiration_year']) ? $input['expiration_year'] : null,
            'cvv' => isset($input['cvv']) ? $input['cvv'] : '',
        ];

        if (isset($input['country_id'])) {
            $country = Country::find($input['country_id']);

            $data = array_merge($data, [
                'billingAddress1' => $input['address1'],
                'billingAddress2' => $input['address2'],
                'billingCity' => $input['city'],
                'billingState' => $input['state'],
                'billingPostcode' => $input['postal_code'],
                'billingCountry' => $country->iso_3166_2,
                'shippingAddress1' => $input['address1'],
                'shippingAddress2' => $input['address2'],
                'shippingCity' => $input['city'],
                'shippingState' => $input['state'],
                'shippingPostcode' => $input['postal_code'],
                'shippingCountry' => $country->iso_3166_2
            ]);
        }

        return $data;
    }

    public function createDataForClient($invitation)
    {
        $invoice = $invitation->invoice;
        $client = $invoice->client;
        $contact = $invitation->contact ?: $client->contacts()->first();

        return [
            'email' => $contact->email,
            'company' => $client->getDisplayName(),
            'firstName' => $contact->first_name,
            'lastName' => $contact->last_name,
            'billingAddress1' => $client->address1,
            'billingAddress2' => $client->address2,
            'billingCity' => $client->city,
            'billingPostcode' => $client->postal_code,
            'billingState' => $client->state,
            'billingCountry' => $client->country ? $client->country->iso_3166_2 : '',
            'billingPhone' => $contact->phone,
            'shippingAddress1' => $client->address1,
            'shippingAddress2' => $client->address2,
            'shippingCity' => $client->city,
            'shippingPostcode' => $client->postal_code,
            'shippingState' => $client->state,
            'shippingCountry' => $client->country ? $client->country->iso_3166_2 : '',
            'shippingPhone' => $contact->phone,
        ];
    }

    public function getClientPaymentMethods($client) {
        $token = $client->getGatewayToken($accountGateway);
        if (!$token) {
            return null;
        }

        $gateway = $this->createGateway($accountGateway);

        $paymentMethods = array();
        if ($accountGateway->gateway_id == GATEWAY_STRIPE) {
            $response = $gateway->fetchCustomer(array('customerReference' => $token))->send();
            if (!$response->isSuccessful()) {
                return null;
            }

            $data = $response->getData();
            $default_source = $data['default_source'];
            $sources = isset($data['sources']) ? $data['sources']['data'] : $data['cards']['data'];

            $paymentTypes = Cache::get('paymentTypes');
            $currencies = Cache::get('currencies');
            foreach ($sources as $source) {
                if ($source['object'] == 'bank_account') {
                    $paymentMethods[] = array(
                        'id' => $source['id'],
                        'default' => $source['id'] == $default_source,
                        'type' => $paymentTypes->find(PAYMENT_TYPE_ACH),
                        'currency' => $currencies->where('code', strtoupper($source['currency']))->first(),
                        'last4' => $source['last4'],
                        'routing_number' => $source['routing_number'],
                        'bank_name' => $source['bank_name'],
                        'status' => $source['status'],
                    );
                } elseif ($source['object'] == 'card') {
                    $paymentMethods[] = array(
                        'id' => $source['id'],
                        'default' => $source['id'] == $default_source,
                        'type' => $paymentTypes->find($this->parseCardType($source['brand'])),
                        'last4' => $source['last4'],
                        'expiration' => $source['exp_year'] . '-' . $source['exp_month'] . '-00',
                    );
                }
            }
        } elseif ($accountGateway->gateway_id == GATEWAY_BRAINTREE) {

        }

        return $paymentMethods;
    }

    public function verifyClientPaymentMethod($client, $sourceId, $amount1, $amount2) {
        $token = $client->getGatewayToken($accountGateway);
        if ($accountGateway->gateway_id != GATEWAY_STRIPE) {
            return 'Unsupported gateway';
        }


        // Omnipay doesn't support verifying payment methods
        // Also, it doesn't want to urlencode without putting numbers inside the brackets
        return $this->makeStripeCall(
            $accountGateway,
            'POST',
            'customers/'.$token.'/sources/'.$sourceId.'/verify',
            'amounts[]='.intval($amount1).'&amounts[]='.intval($amount2)
        );
    }

    public function removeClientPaymentMethod($client, $sourceId) {
        $token = $client->getGatewayToken($accountGateway/* return parameter */);
        if (!$token) {
            return null;
        }

        $gateway = $this->createGateway($accountGateway);

        if ($accountGateway->gateway_id == GATEWAY_STRIPE) {
            $response = $gateway->deleteCard(array('customerReference' => $token, 'cardReference'=>$sourceId))->send();
            if (!$response->isSuccessful()) {
                return $response->getMessage();
            }
        } elseif ($accountGateway->gateway_id == GATEWAY_BRAINTREE) {

        }

        return true;
    }

    public function setClientDefaultPaymentMethod($client, $sourceId) {
        $token = $client->getGatewayToken($accountGateway/* return parameter */);
        if (!$token) {
            return null;
        }

        $gateway = $this->createGateway($accountGateway);

        if ($accountGateway->gateway_id == GATEWAY_STRIPE) {

            return $this->makeStripeCall(
                $accountGateway,
                'POST',
                'customers/'.$token,
                'default_card='.$sourceId
            );
        } elseif ($accountGateway->gateway_id == GATEWAY_BRAINTREE) {

        }

        return true;
    }

    public function createToken($gateway, $details, $accountGateway, $client, $contactId, &$customerReference = null)
    {
        $customerReference = $client->getGatewayToken();

        if ($customerReference) {
            $details['customerReference'] = $customerReference;

            $customerResponse = $gateway->fetchCustomer(array('customerReference'=>$customerReference))->send();

            if (!$customerResponse->isSuccessful()){
                $customerReference = null; // The customer might not exist anymore
            }
        }

        if ($accountGateway->gateway->id == GATEWAY_STRIPE) {
            $tokenResponse = $gateway->createCard($details)->send();
            $sourceReference = $tokenResponse->getCardReference();
            $customerReference = $tokenResponse->getCustomerReference();

            if (!$sourceReference) {
                $responseData = $tokenResponse->getData();
                if ($responseData['object'] == 'bank_account' || $responseData['object']  == 'card') {
                    $sourceReference = $responseData['id'];
                }
            }

            if ($customerReference == $sourceReference) {
                // This customer was just created; find the card
                $data = $tokenResponse->getData();
                if (!empty($data['default_source'])) {
                    $sourceReferebce = $data['default_source'];
                }
            }
        } elseif ($accountGateway->gateway->id == GATEWAY_BRAINTREE) {
            if (!$customerReference) {
                $tokenResponse = $gateway->createCustomer(array('customerData' => array()))->send();
                if ($tokenResponse->isSuccessful()) {
                    $customerReference = $tokenResponse->getCustomerData()->id;
                }
            }

            if ($customerReference) {
                $details['customerId'] = $customerReference;

                $tokenResponse = $gateway->createPaymentMethod($details)->send();
                $cardReference = $tokenResponse->getData()->paymentMethod->token;
            }
        }

        if ($customerReference) {
            $token = AccountGatewayToken::where('client_id', '=', $client->id)
            ->where('account_gateway_id', '=', $accountGateway->id)->first();

            if (!$token) {
                $token = new AccountGatewayToken();
                $token->account_id = $client->account->id;
                $token->contact_id = $contactId;
                $token->account_gateway_id = $accountGateway->id;
                $token->client_id = $client->id;
            }

            $token->token = $customerReference;
            $token->save();
        } else {
            $this->lastError = $tokenResponse->getMessage();
        }

        return $sourceReference;
    }

    public function getCheckoutComToken($invitation)
    {
        $token = false;
        $invoice = $invitation->invoice;
        $client = $invoice->client;
        $account = $invoice->account;

        $accountGateway = $account->getGatewayConfig(GATEWAY_CHECKOUT_COM);
        $gateway = $this->createGateway($accountGateway);

        $response = $gateway->purchase([
            'amount' => $invoice->getRequestedAmount(),
            'currency' => $client->currency ? $client->currency->code : ($account->currency ? $account->currency->code : 'USD')
        ])->send();

        if ($response->isRedirect()) {
            $token = $response->getTransactionReference();
        }

        Session::set($invitation->id . 'payment_type', PAYMENT_TYPE_CREDIT_CARD);

        return $token;
    }

    public function getBraintreeClientToken($account)
    {
        $token = false;

        $accountGateway = $account->getGatewayConfig(GATEWAY_BRAINTREE);
        $gateway = $this->createGateway($accountGateway);

        $token = $gateway->clientToken()->send()->getToken();

        return $token;
    }

    public function createPayment($invitation, $accountGateway, $ref, $payerId = null, $paymentDetails = null, $purchaseResponse = null)
    {
        $invoice = $invitation->invoice;

        $payment = Payment::createNew($invitation);
        $payment->invitation_id = $invitation->id;
        $payment->account_gateway_id = $accountGateway->id;
        $payment->invoice_id = $invoice->id;
        $payment->amount = $invoice->getRequestedAmount();
        $payment->client_id = $invoice->client_id;
        $payment->contact_id = $invitation->contact_id;
        $payment->transaction_reference = $ref;
        $payment->payment_date = date_create()->format('Y-m-d');
        
        if (!empty($paymentDetails['card'])) {
            $card = $paymentDetails['card'];
            $payment->last4 = substr($card->number, -4);
            $year = $card->expiryYear;
            if (strlen($year) == 2) {
                $year = '20' . $year;
            }

            $payment->expiration = $year . '-' . $card->expiryMonth . '-00';
            $payment->payment_type_id = $this->detectCardType($card->number);
        }

        if ($accountGateway->gateway_id == GATEWAY_STRIPE) {
            $data = $purchaseResponse->getData();
            $source = !empty($data['source'])?$data['source']:$data['card'];

            $payment->payment_status_id = $data['status'] == 'succeeded' ? PAYMENT_STATUS_COMPLETED : PAYMENT_STATUS_PENDING;

            if ($source) {
                $payment->last4 = $source['last4'];

                if ($source['object'] == 'bank_account') {
                    $payment->routing_number = $source['routing_number'];
                    $payment->payment_type_id = PAYMENT_TYPE_ACH;
                }
                else{
                    $payment->expiration = $card['exp_year'] . '-' . $card['exp_month'] . '-00';
                    $payment->payment_type_id = $this->parseCardType($card['brand']);
                }
            }
        } elseif ($accountGateway->gateway_id == GATEWAY_BRAINTREE) {
            $card = $purchaseResponse->getData()->transaction->creditCardDetails;
            $payment->last4 = $card->last4;
            $payment->expiration = $card->expirationYear . '-' . $card->expirationMonth . '-00';
            $payment->payment_type_id = $this->parseCardType($card->cardType);
        }
        
        if ($payerId) {
            $payment->payer_id = $payerId;
        }

        $payment->save();

        // enable pro plan for hosted users
        if ($invoice->account->account_key == NINJA_ACCOUNT_KEY) {
            foreach ($invoice->invoice_items as $invoice_item) {
                // Hacky, but invoices don't have meta fields to allow us to store this easily
                if (1 == preg_match('/^Plan - (.+) \((.+)\)$/', $invoice_item->product_key, $matches)) {
                    $plan = strtolower($matches[1]);
                    $term = strtolower($matches[2]);
                } elseif ($invoice_item->product_key == 'Pending Monthly') {
                    $pending_monthly = true;
                }
            }
            
            if (!empty($plan)) { 
                $account = Account::with('users')->find($invoice->client->public_id);
                
                if(
                    $account->company->plan != $plan
                    || DateTime::createFromFormat('Y-m-d', $account->company->plan_expires) >= date_create('-7 days')
                ) {
                    // Either this is a different plan, or the subscription expired more than a week ago
                    // Reset any grandfathering
                    $account->company->plan_started = date_create()->format('Y-m-d');
                }
                            
                if (
                    $account->company->plan == $plan
                    && $account->company->plan_term == $term 
                    && DateTime::createFromFormat('Y-m-d', $account->company->plan_expires) >= date_create()
                ) {
                    // This is a renewal; mark it paid as of when this term expires
                    $account->company->plan_paid = $account->company->plan_expires;
                } else {
                    $account->company->plan_paid = date_create()->format('Y-m-d');
                }
                
                $account->company->payment_id = $payment->id;
                $account->company->plan = $plan;
                $account->company->plan_term = $term;
                $account->company->plan_expires = DateTime::createFromFormat('Y-m-d', $account->company->plan_paid)
                    ->modify($term == PLAN_TERM_MONTHLY ? '+1 month' : '+1 year')->format('Y-m-d');
                                
                if (!empty($pending_monthly)) {
                    $account->company->pending_plan = $plan;
                    $account->company->pending_term = PLAN_TERM_MONTHLY;
                } else {
                    $account->company->pending_plan = null;
                    $account->company->pending_term = null;
                }
                
                $account->company->save();
            }
        }

        return $payment;
    }

    private function parseCardType($cardName) {
        $cardTypes = array(
            'Visa' => PAYMENT_TYPE_VISA,
            'American Express' => PAYMENT_TYPE_AMERICAN_EXPRESS,
            'MasterCard' => PAYMENT_TYPE_MASTERCARD,
            'Discover' => PAYMENT_TYPE_DISCOVER,
            'JCB' => PAYMENT_TYPE_JCB,
            'Diners Club' => PAYMENT_TYPE_DINERS,
            'Carte Blanche' => PAYMENT_TYPE_CARTE_BLANCHE,
            'China UnionPay' => PAYMENT_TYPE_UNIONPAY,
            'Laser' => PAYMENT_TYPE_LASER,
            'Maestro' => PAYMENT_TYPE_MAESTRO,
            'Solo' => PAYMENT_TYPE_SOLO,
            'Switch' => PAYMENT_TYPE_SWITCH
        );

        if (!empty($cardTypes[$cardName])) {
            return $cardTypes[$cardName];
        } else {
            return PAYMENT_TYPE_CREDIT_CARD_OTHER;
        }
    }
    
    private function detectCardType($number)
    {
        if (preg_match('/^3[47][0-9]{13}$/',$number)) {
            return PAYMENT_TYPE_AMERICAN_EXPRESS;
        } elseif (preg_match('/^3(?:0[0-5]|[68][0-9])[0-9]{11}$/',$number)) {
            return PAYMENT_TYPE_DINERS;
        } elseif (preg_match('/^6(?:011|5[0-9][0-9])[0-9]{12}$/',$number)) {
            return PAYMENT_TYPE_DISCOVER;
        } elseif (preg_match('/^(?:2131|1800|35\d{3})\d{11}$/',$number)) {
            return PAYMENT_TYPE_JCB;
        } elseif (preg_match('/^5[1-5][0-9]{14}$/',$number)) {
            return PAYMENT_TYPE_MASTERCARD;
        } elseif (preg_match('/^4[0-9]{12}(?:[0-9]{3})?$/',$number)) {
            return PAYMENT_TYPE_VISA;
        }
        return PAYMENT_TYPE_CREDIT_CARD_OTHER;
    }

    public function completePurchase($gateway, $accountGateway, $details, $token)
    {
        if ($accountGateway->isGateway(GATEWAY_MOLLIE)) {
            $details['transactionReference'] = $token;
            $response = $gateway->fetchTransaction($details)->send();
            return $gateway->fetchTransaction($details)->send();
        } else {

            return $gateway->completePurchase($details)->send();
        }
    }

    public function autoBillInvoice($invoice)
    {
        $client = $invoice->client;
        $account = $invoice->account;
        $invitation = $invoice->invitations->first();
        $accountGateway = $account->getTokenGateway();
        $token = $client->getGatewayToken();

        if (!$invitation || !$accountGateway || !$token) {
            return false;
        }

        // setup the gateway/payment info
        $gateway = $this->createGateway($accountGateway);
        $details = $this->getPaymentDetails($invitation, $accountGateway);
        $details['customerReference'] = $token;

        if ($accountGateway->gateway_id == GATEWAY_STRIPE) {
            $details['customerReference'] = $token;

        } elseif ($accountGateway->gateway_id == GATEWAY_BRAINTREE) {
            $details['customerId'] = $token;
            $customer = $gateway->findCustomer($token)->send();
            $details['paymentMethodToken'] = $customer->getData()->paymentMethods[0]->token;
        }

        // submit purchase/get response
        $response = $gateway->purchase($details)->send();

        if ($response->isSuccessful()) {
            $ref = $response->getTransactionReference();
            return $this->createPayment($invitation, $accountGateway, $ref, null, $details, $response);
        } else {
            return false;
        }
    }

    public function getDatatable($clientPublicId, $search)
    {
        $query = $this->paymentRepo->find($clientPublicId, $search);

        if(!Utils::hasPermission('view_all')){
            $query->where('payments.user_id', '=', Auth::user()->id);
        }

        return $this->createDatatable(ENTITY_PAYMENT, $query, !$clientPublicId, false, 
                ['invoice_number', 'transaction_reference', 'payment_type', 'amount', 'payment_date']);
    }

    protected function getDatatableColumns($entityType, $hideClient)
    {
        return [
            [
                'invoice_number',
                function ($model) {
                    if(!Invoice::canEditItemByOwner($model->invoice_user_id)){
                        return $model->invoice_number;
                    }
                    
                    return link_to("invoices/{$model->invoice_public_id}/edit", $model->invoice_number, ['class' => Utils::getEntityRowClass($model)])->toHtml();
                }
            ],
            [
                'client_name',
                function ($model) {
                    if(!Client::canViewItemByOwner($model->client_user_id)){
                        return Utils::getClientDisplayName($model);
                    }
                    
                    return $model->client_public_id ? link_to("clients/{$model->client_public_id}", Utils::getClientDisplayName($model))->toHtml() : '';
                },
                ! $hideClient
            ],
            [
                'transaction_reference',
                function ($model) {
                    return $model->transaction_reference ? $model->transaction_reference : '<i>Manual entry</i>';
                }
            ],
            [
                'payment_type',
                function ($model) {
                    return ($model->payment_type && !$model->last4) ? $model->payment_type : ($model->account_gateway_id ? $model->gateway_name : '');
                }
            ],
            [
                'source',
                function ($model) {
                    if (!$model->last4) return '';
                    $code = str_replace(' ', '', strtolower($model->payment_type));
                    $card_type = trans("texts.card_" . $code);
                    if ($model->payment_type_id != PAYMENT_TYPE_ACH) {
                        $expiration = trans('texts.card_expiration', array('expires' => Utils::fromSqlDate($model->expiration, false)->format('m/y')));
                        return '<img height="22" src="' . URL::to('/images/credit_cards/' . $code . '.png') . '" alt="' . htmlentities($card_type) . '">&nbsp; &bull;&bull;&bull;' . $model->last4 . ' ' . $expiration;
                    } else {
                        $bankData = PaymentController::getBankData($model->routing_number);
                        if (is_array($bankData)) {
                            return $bankData['name'].'&nbsp; &bull;&bull;&bull;' . $model->last4;
                        } else {
                            return '<img height="22" src="' . URL::to('/images/credit_cards/ach.png') . '" alt="' . htmlentities($card_type) . '">&nbsp; &bull;&bull;&bull;' . $model->last4;
                        }
                    }
                }
            ],
            [
                'amount',
                function ($model) {
                    return Utils::formatMoney($model->amount, $model->currency_id, $model->country_id);
                }
            ],
            [
                'payment_date',
                function ($model) {
                    return Utils::dateToString($model->payment_date);
                }
            ],
            [
                'payment_status_name',
                function ($model) use ($entityType) {
                    return self::getStatusLabel($entityType, $model);
                }
            ]
        ];
    }

    protected function getDatatableActions($entityType)
    {
        return [
            [
                trans('texts.edit_payment'),
                function ($model) {
                    return URL::to("payments/{$model->public_id}/edit");
                },
                function ($model) {
                    return Payment::canEditItem($model);
                }
            ],
            [
                trans('texts.refund_payment'),
                function ($model) {
                    $max_refund = number_format($model->amount - $model->refunded, 2);
                    $formatted = Utils::formatMoney($max_refund, $model->currency_id, $model->country_id);
                    $symbol = Utils::getFromCache($model->currency_id, 'currencies')->symbol;
                    return "javascript:showRefundModal({$model->public_id}, '{$max_refund}', '{$formatted}', '{$symbol}')";
                },
                function ($model) {
                    return Payment::canEditItem($model) && (
                        ($model->transaction_reference && in_array($model->gateway_id , static::$refundableGateways))
                        || $model->payment_type_id == PAYMENT_TYPE_CREDIT
                    );
                }
            ]
        ];
    }
    
    public function bulk($ids, $action, $params = array())
    {
        if ($action == 'refund') {
            if ( ! $ids ) {
                return 0;
            }

            $payments = $this->getRepo()->findByPublicIdsWithTrashed($ids);

            foreach ($payments as $payment) {
                if($payment->canEdit()){
                    if(!empty($params['amount'])) {
                        $this->refund($payment, floatval($params['amount']));
                    } else {
                        $this->refund($payment);
                    }  
                }
            }

            return count($payments);
        } else {
            return parent::bulk($ids, $action);
        }
    }
    
    private function getStatusLabel($entityType, $model)
    {
        $label = trans("texts.status_" . strtolower($model->payment_status_name));
        $class = 'default';
        switch ($model->payment_status_id) {
            case PAYMENT_STATUS_PENDING:
                $class = 'info';
                break;
            case PAYMENT_STATUS_COMPLETED:
                $class = 'success';
                break;
            case PAYMENT_STATUS_FAILED:
                $class = 'danger';
                break;
            case PAYMENT_STATUS_PARTIALLY_REFUNDED:
                $label = trans('texts.status_partially_refunded_amount', [
                    'amount' => Utils::formatMoney($model->refunded, $model->currency_id, $model->country_id),
                ]);
                $class = 'primary';
                break;
            case PAYMENT_STATUS_REFUNDED:
                $class = 'default';
                break;
        }
        return "<h4><div class=\"label label-{$class}\">$label</div></h4>";
    }
    
    public function refund($payment, $amount = null) {
        if (!$amount) {
            $amount = $payment->amount;
        }
        
        $amount = min($amount, $payment->amount - $payment->refunded);
        
        if (!$amount) {
            return;
        }
        
        if ($payment->payment_type_id != PAYMENT_TYPE_CREDIT) {
            $accountGateway = $this->createGateway($payment->account_gateway);
            $refund = $accountGateway->refund(array(
                'transactionReference' => $payment->transaction_reference,
                'amount' => $amount,
            ));
            $response = $refund->send();
            
            if ($response->isSuccessful()) {
                $payment->recordRefund($amount);
            } else {
                $this->error('Unknown', $response->getMessage(), $accountGateway);
            }
        } else {
            $payment->recordRefund($amount);
        }
    }

    public function makeStripeCall($accountGateway, $method, $url, $body = null) {
        $apiKey = $accountGateway->getConfig()->apiKey;

        if (!$apiKey) {
            return 'No API key set';
        }

        try{
            $options = [
                'headers'  => ['content-type' => 'application/x-www-form-urlencoded'],
                'auth' => [$accountGateway->getConfig()->apiKey,''],
            ];

            if ($body) {
                $options['body'] = $body;
            }

            $response = (new \GuzzleHttp\Client(['base_uri'=>'https://api.stripe.com/v1/']))->request(
                $method,
                $url,
                $options
            );
            return json_decode($response->getBody(), true);
        } catch (\GuzzleHttp\Exception\BadResponseException $e) {
            $response = $e->getResponse();
            $body = json_decode($response->getBody(), true);

            if ($body && $body['error'] && $body['error']['type'] == 'invalid_request_error') {
                return $body['error']['message'];
            }

            return $e->getMessage();
        }
    }
}