<?php

class App_ECommerce_Checkout_Form_Service_Payment extends App_ECommerce_Checkout_Form_Service_Abstract
{
    protected $_legend = 'Payment Information';

    protected function _isApproved()
    {
        /** @var Qs_Doc $doc */
        $doc = Zend_Registry::get('doc');
        return $doc->getAuthData('approved') === 'y';
    }

    protected function _initElements()
    {
        $paymentTypes = $this->getPaymentType();
        $disable = false;
        if (!$this->_isApproved()) {
            $paymentTypes['po'] .= ' (Contact us for approval to pay via this method)';
            $disable = ['po'];
        }
        if (count($paymentTypes) == 1) {
            $paymentType = current(array_keys($paymentTypes));
            $paymentTitle = ucfirst(current($paymentTypes));
            $this->addElement('static', $paymentType . 'Title', array('value' => $paymentTitle));
            $this->addElement('hidden', 'type', array('value' => $paymentType, 'required' => true));
            $this->addDisplayGroup(array('type'), 'typeGroup');
            $this->_addServiceType('payment', $paymentType);
        } else {
            $this->addElement(
                'radio',
                'type',
                array(
                    'multiOptions'  => $paymentTypes,
                    'required'      => true,
                    'disable'       => $disable,
                )
            );
            if (false !== $disable) {
                $this->getElement('type')->addValidator('InArray', true, array(
                    'haystack'      => array_diff(array_keys($paymentTypes), $disable),
                    'messages'      => [Zend_Validate_InArray::NOT_IN_ARRAY => 'Method not allowed'],
                ));
            }
            $this->addDisplayGroup(array('type'), 'typeGroup');

            foreach (array_keys($paymentTypes) as $type) {
                $this->_addServiceType('payment', $type, array('class' => 'payment'));
            }
        }

        if (($paymentData = $this->_getData('servicePayment')) !== null) {
            foreach (array_keys($paymentTypes) as $type) {
                if (array_key_exists('type', $paymentData) && $paymentData['type'] == $type) {
                    if (null !== ($group = $this->getDisplayGroup($type . 'Methods'))) {
                        $group->setAttrib('class', 'payment');
                    }
                    continue;
                }

                if (null !== ($group = $this->getDisplayGroup($type . 'Methods'))) {
                    foreach ($group->getElements() as $element) {
                        /** @var $element Zend_Form_Element */
                        $element->setRequired(false);
                    }
                }
            }
        }

        return $this;
    }

    /**
     * Return type for payment
     *
     * @return array|bool
     */
    public function getPaymentType()
    {
        $types = false;

        foreach ($this->_getConfig('payment') as $key => $type) {
            if (is_int($key)) {
                $title = ucfirst($type);
            } else {
                $title = $type;
                $type = $key;
            }
            $types[$type] = $title;
        }

        return $types;
    }

    public function reinitData($data)
    {
        if (array_key_exists('servicePayment', $data) && array_key_exists('type', $data['servicePayment'])) {
            if (null !== ($group = $this->getDisplayGroup($data['servicePayment']['type'] . 'Methods'))) {
                $group->setAttrib('class', 'payment');
            }
        }
        return $this;
    }
}