Import shopping cart price rule (coupon code)

<?php
$mageFilename = 'app/Mage.php';

require_once $mageFilename;

Varien_Profiler::enable();

Mage::setIsDeveloperMode(true);

ini_set('display_errors', 1);

umask(0);
Mage::app('default');
Mage::register('isSecureArea', 1);

class generateCouponCode{
   
    protected $_file = 'coupon_code.csv';
    protected $_count = 0;
   
    public function csvToArray($_file) {
        $csvArray = array();
        $file = fopen($_file, "r");
        fgetcsv($file);
        while (!feof($file)) {
            $values = fgetcsv($file);
            if ($values) {
                $csvArray[] = $values;
            }
        }
        return $csvArray;
    }

    public function getAllCustomerGroups() {
    //get all customer groups
        $customerGroups = Mage::getModel('customer/group')->getCollection();
        $groups = array();
        foreach ($customerGroups as $group) {
            $groups[] = $group->getId();
        }
        return $groups;
    }

    public function getAllWbsites() {
    //get all wabsites
        $websites = Mage::getModel('core/website')->getCollection();
        $websiteIds = array();
        foreach ($websites as $website) {
            $websiteIds[] = $website->getId();
        }
        return $websiteIds;
    }

    //read comments for each line
    public function generateRule($uniqueId) {

        $conditionProduct = Mage::getModel('salesrule/rule_condition_product')
                                                ->setType('salesrule/rule_condition_product')
                                                ->setAttribute('sku')
                                                ->setOperator('==')
                                                ->setValue('Bab0001');
                                               
        /** @var Mage_SalesRule_Model_Rule_Condition_Product_Found $conditionProductFound */
        $conditionProductFound = Mage::getModel('salesrule/rule_condition_product_found')
                                            ->setConditions(array($conditionProduct));
       
        /** @var Mage_SalesRule_Model_Rule_Condition_Combine $condition */
        $condition = Mage::getModel('salesrule/rule_condition_combine')
                    ->setConditions(array($conditionProductFound));
                   
        $rule = Mage::getModel('salesrule/rule');
        $rule->setName($uniqueId);
        $rule->setCouponType('2');
        $rule->setDescription('');
        $rule->setFromDate('2012-10-05');//date('Y-m-d')
        $rule->setToDate('2013-10-05');//date('Y-m-d')
        $rule->setCouponCode($uniqueId);
        $rule->setUsesPerCoupon(1); //number of allowed uses for this coupon
        $rule->setUsesPerCustomer(1); //number of allowed uses for this coupon for each customer
        $rule->setCustomerGroupIds($this->getAllCustomerGroups());
        $rule->setIsActive(1);
        $rule->setStopRulesProcessing(0); //set to 1 if you want all other rules after this to not be processed
        $rule->setIsRss(0); //set to 1 if you want this rule to be public in rss
        $rule->setIsAdvanced(1); //have no idea what it means :)
        $rule->setProductIds('');
        $rule->setSortOrder(0); // order in which the rules will be applied
        $rule->setSimpleAction('cart_fixed');
        $rule->setDiscountAmount('29.98');
        $rule->setDiscountQty(0); //Maximum Qty Discount is Applied to
        $rule->setDiscountStep(0); //used for buy_x_get_y; This is X
        $rule->setSimpleFreeShipping(0); //set to 1 for Free shipping
        $rule->setApplyToShipping(0); //set to 0 if you don't want the rule to be applied to shipping
        $rule->setWebsiteIds($this->getAllWbsites());
        $rule->setConditionsSerialized(serialize($condition->asArray()));
        $rule->setConditions($condition);
        $rule->loadPost($rule->getData());
       
        try
        {
            $rule->save();  
            Mage::log('Coupon code created for '.$uniqueId.'', null, 'couponcode.log');
            $this->_count++;
        }
        catch (Exception $e)
        {
            echo 'Caught exception for coupon code '.$uniqueId.':: ',  $e->getMessage(), "\n";
            Mage::log('Caught exception for coupon code '.$uniqueId.'::'.$e->getMessage().'', null, 'couponcode.log');
        }
    }
   
    public function importCsv() {
       
        $file = Mage::getBaseDir('base').DS.$this->_file;
       
        if (empty($file)) {
            throw new Exception("You need to upload a file to import.");
        }
       
        $csv = trim(file_get_contents($file));
       
        if (empty($csv)) {
            throw new Exception("The file is empty.");
        }
       
        $csv = $this->csvToArray($file);

        foreach ($csv as $key => $row) {
            $this->generateRule($row[0]);
        }
       
        echo sprintf("total %s coupon code created",$this->_count);
    }
   
}
$obj = new generateCouponCode();
$obj->importCsv();

?>