Laravel Adapter for Stripe Billing

StripeBilling.php

<?php namespace Endata\Billing;

use Stripe;
use Stripe_Charge;
use Stripe_Customer;
use Stripe_InvalidRequestError;
use Stripe_CardError;
use Config;
use Exception;

class StripeBilling implements BillingInterface {

    public function __construct()
    {
        Stripe::setApiKey(Config::get('stripe.secret_key'));
    }

    /**
     * Start a subscription
     * @param  array  $data [description]
     * @return [type]       [description]
     */
    public function subscribe(array $data)
    {
        try
        {
            if($data['customer'] == null)
            {
                $customer = Stripe_Customer::create([
                    'card' => $data['token'],
                    "plan" => $data['plan'], 
                    "quantity" => $data['quantity'],              
                    'email' => $data['email'],
                    'description' => $data['name']
                ]);
            }
            else 
            {
                $customer = Stripe_Customer::retrieve($data['customer']);
                $customer->subscriptions->create([
                    'card' => $data['token'],
                    "plan" => $data['plan'], 
                    "quantity" => $data['quantity'],              
                ]);
            }

            return $customer;
        }

        catch (Stripe_InvalidRequestError $e)
        {
            // Invalid parameters were supplied to Stripe's API
            throw new Exception($e->getMessage());
        }

        catch(Stripe_CardError $e)
        {
            throw new Exception($e->getMessage());
        }
    }

    /**
     * One time charges
     * @param  array  $data [description]
     * @return [type]       [description]
     */
    public function charge(array $data)
    {
        try
        {
            if($data['customer'] == null)
            {
                $customer = Stripe_Customer::create([
                    'card' => $data['token'],
                    'email' => $data['email'],
                    'description' => $data['name']
                ]);
            }
            else 
            {
                $customer = Stripe_Customer::retrieve($data['customer']);
            }

            Stripe_Charge::create([
                'customer' => $customer->id,
                'amount' => $data['amount'],
                'currency' => 'usd',
                'description' => $data['product']
            ]);

            return $customer;
        }

        catch (Stripe_InvalidRequestError $e)
        {
            // Invalid parameters were supplied to Stripe's API
            throw new Exception($e->getMessage());
        }

        catch(Stripe_CardError $e)
        {
            throw new Exception($e->getMessage());
        }
    }

    public function customerInfo($customer) {

        try
        {
            return Stripe_Customer::retrieve($customer);
        }
        catch (Stripe_InvalidRequestError $e)
        {
            return null;
        }

    }
}