<?php

class App_ECommerce_ShippingPrice_Admin_Form_Edit extends App_ECommerce_ShippingPrice_Admin_Form_Abstract
{
    protected $_controllerAction = 'update';
    protected $_notRecommendedEndQuantity = 'End Quantity should be less than %value%';

    public function validateForm(array $data)
    {
        $errors = parent::validateForm($data);
        if (!is_array($errors)) {
            $errors = array();
        }

        $nextPrice = $this->_priceObj->getNeighborPrice(
            $this->_getData('id'),
            App_ECommerce_ShippingPrice_Admin_Obj::NEXT_DIRECTION
        );
        if (empty($errors['endQuantity']) && $nextPrice && $data['endQuantity'] > $nextPrice['endQuantity'] - 1) {
            $errors['endQuantity'] = str_replace('%value%', $nextPrice['endQuantity'], $this->_notRecommendedEndQuantity);
        }

        return (empty($errors)) ? true : $errors;
    }
}