<?php

class Zend_Controller_Action_Helper_MongoDateFunctions extends Zend_Controller_Action_Helper_Abstract
{

    public function init()
    {

    }

    public function direct($data)
    {
        $dateValidatorSlashWithTime = new Zend_Validate_Date(array('format' => 'dd/mm/yyyy HH:ii:ss'));
        $dateValidatorSlash = new Zend_Validate_Date(array('format' => 'dd/mm/yyyy'));
        $dateValidatorTrattino = new Zend_Validate_Date(array('format' => 'yyyy-mm-dd'));

        if ($dateValidatorSlashWithTime->isValid($data)) {
            $data = explode(' ', $data);
            $dataString = implode('-', array_reverse(explode("/", $data[0]))) . " " . $data[1];
        } else if ($dateValidatorSlash->isValid($data)) {
            $dataString = implode('-', array_reverse(explode("/", $data))) . $this->checkTimeString($data);
        } else if ($dateValidatorTrattino->isValid($data)) {
            $dataString = $data . $this->checkTimeString($data);
        } else {
            return null;
        }

        $orig_date = new DateTime($dataString);
        return new MongoDB\BSON\UTCDateTime($orig_date->getTimestamp() * 1000);
    }

    private function checkTimeString($data)
    {
        return (preg_match('/[0-9]{2}:[0-9]{2}:[0-9]{2}/', $data)) ? '' : " 00:00:00";
    }


}