<?php

class Qs_View_Helper_FormInternationalTel extends Qs_View_Helper_FormTel
{
    protected $info;
    protected $telOptions = [
        'allowExtensions',
        'autoFormat',
        'autoHideDialCode',
        'autoPlaceholder',
        'defaultCountry',
        'ipinfoToken',
        'nationalMode',
        'numberType',
        'onlyCountries',
        'preferredCountries',
    ];
    protected $telOptionsDefaults = [
        'nationalMode' => false,
    ];

    protected function getInfo($field = null, $default = null)
    {
        return Qs_Array::get($this->info, $field, $default);
    }

    protected function _getInfo($name, $value = null, $attribs = null, $options = null, $listsep = null)
    {
        $info = parent::_getInfo($name, $value, $attribs, $options, $listsep);
        $info['telOptions'] = $this->telOptionsDefaults;
        foreach ($this->telOptions as $name) {
            if (array_key_exists($name, $info['attribs'])) {
                $info['telOptions'][$name] = $info['attribs'][$name];
                unset($info['attribs'][$name]);
            }
        }
        $info['hidden'] = [
            'type'  => 'hidden',
            'id'    => $info['id'],
            'name'  => $info['name'],
            'value' => $info['value'],
        ];
        $info['tel'] = array_merge($info['attribs'], [
            'type'  => 'tel',
            'id'    => $this->addPrefix($info['id']),
            'value' => $info['value'],
        ]);
        if (Qs_Array::get($info['tel'], 'disable')) {
            $info['tel']['disabled'] = 'disabled';
            unset($info['tel']['disable']);
        }
        return $info;
    }

    protected function addPrefix($value)
    {
        $prefix = '_';
        if (false !== ($pos = strrpos($value, '['))) {
            if ('[]' == substr($value, -2)) {
                return $prefix . $value;
            }
            $pos++;
            return substr($value, 0, $pos) . $prefix . substr($value, $pos);
        } elseif (false !== ($pos = strrpos($value, '-'))) {
            $pos++;
            return substr($value, 0, $pos) . $prefix . substr($value, $pos);
        }
        return $prefix . $value;
    }

    public function formInternationalTel($name, $value = null, $attribs = null)
    {
        $this->info = $this->_getInfo($name, $value, $attribs);
        /** @var Qs_Doc $doc */
        $doc = Zend_Registry::get('doc');
        $doc->addCriticalStylesheet('css/thirdpart/intlTelInput.css');
        $doc->addScript('js/intl-tel-number/utils.js');
        $doc->addScript('js/intl-tel-number/intlTelInput.js');
        $doc->addScript('js/lib/form/element/internationalTel.js');
        $options = [
            'id'    => $this->getInfo('hidden[id]'),
            'telId' => $this->getInfo('tel[id]'),
            'tel'   => array_merge(['allowExtensions' => true], $this->getInfo('telOptions')),
        ];
        $doc->addInitObject('lib.form.element.InternationalTel', [$options]);

        return Qs\Html::renderTag('input', $this->getInfo('hidden'))
            . Qs\Html::renderTag('input', $this->getInfo('tel'));
    }
}