<?php

namespace App\ECommerce\Checkout\Form;

use Qs_Request;
use App\ECommerce\Checkout\Model;
use Exception;

class Address extends \Qs_Form_SubForm
{
    protected $type;
    protected $taxCloudCallback;

    /**
     * @param mixed $type
     * @return $this
     */
    public function setType($type)
    {
        $this->type = $type;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getType()
    {
        return $this->type;
    }

    /**
     * @param mixed $taxCloudCallback
     * @throws \Exception
     * @return $this
     */
    public function setTaxCloudCallback($taxCloudCallback)
    {
        if (!is_callable($taxCloudCallback)) {
            throw new Exception('Invalid TaxCloud callback');
        }
        $this->taxCloudCallback = $taxCloudCallback;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getTaxCloudCallback()
    {
        return $this->taxCloudCallback;
    }

    public function loadDefaultDecorators()
    {
        if ($this->loadDefaultDecoratorsIsDisabled()) {
            return;
        }
        $decorators = $this->getDecorators();

        if (empty($decorators)) {
            $this->addDecorator('FormElements')
                ->addDecorator('HtmlTag', array('tag' => 'dl'))
                ->addDecorator('Errors')
                ->addDecorator('Fieldset')
                ->addDecorator('DtDdWrapper');
        }
    }

    public function isValid($data)
    {
        $isValid = parent::isValid($data);
        return $isValid && $this->isValidTaxCloudDestinationAddress();
    }

    public function isValidAjax($data = null)
    {
        $isValid = parent::isValidAjax($data);
        return $isValid && $this->isValidTaxCloudDestinationAddress();
    }

    protected function isDestinationAddress()
    {
        return $this->getType() == Model::getDestinationAddressType(Qs_Request::getPost());
    }

    protected function isValidTaxCloudDestinationAddress()
    {
        if (!$this->isDestinationAddress()) {
            return true;
        }
        $address = $this->getValues();
        if ($this->getType() == key($address)) {
            $address = current($address);
        }
        if (!is_callable($this->getTaxCloudCallback())) {
            throw new Exception('Invalid TaxCloud callback');
        }
        if (true !== ($errors = call_user_func($this->getTaxCloudCallback(), $address))) {
            $this->setErrors($errors);
            return false;
        }
        return true;
    }
}