<?php

namespace App\WideSlide\Admin\Form;
use App\WideSlide;
use App_Cms_Obj;
use Qs_Form;
use Qs_Array;
use Qs_Application;
use Qs_Validate_StringLength;
use Qs\Form\DynamicFormTrait;
use Qs_Db_Language;

class AbstractForm extends Qs_Form
{
    use DynamicFormTrait;

    public function init()
    {
        $this->setDfRelations($this->getConfigArray('dynamicFormRelations'));
        return parent::init();
    }

    protected function _prepareDynamicFormRelationsElements($config)
    {
        $languageList = array_keys(Qs_Db_Language::getList());
        $rules = $config[0]['rules'];
        foreach ($rules as $key => $rule) {
            foreach($rule['_elements'] as $element) {
                foreach ($languageList as $language) {
                    $config[0]['rules'][$key]['_elements'][] = $element . '_' . $language;
                }
            }
        }
        return $config;
    }

    protected function _getSlideConfig()
    {
        return \Qs_Application::getConfig('WideSlide')->toArray();
    }

    protected function _initElements()
    {
        $config = $this->_getSlideConfig();

        $this->addElement('text', 'title', array('label' => 'Title', 'required' => true));

        $resize = $config['image']['width'] . 'x' . $config['image']['height'] . $config['image']['resizeMethodAlias'];
        $validators = array(
            array('IsImage', true),
            array(
                'ImageSize',
                true,
                array(
                    'minwidth'  => $config['image']['width'],
                    'minheight' => $config['image']['height']
                )
            )
        );
        $this->addElement(
            'extendedImage',
            'image',
            array(
                'label'      => 'Image',
                'required'   => true,
                'resize'     => $resize,
                'validators' => $validators
            )
        );

        $this->addElement('htmlEditor', 'description', array('label' => 'Description'));
        $description = $this->getElement('description');
        $lengthValidator = new \Qs_Validate_StringLength(array(
            'max'          => $config['descriptionMaxLength'],
            'elementLabel' => $description->getLabel()
        ));
        $description->addValidator($lengthValidator, true);
        $description->setDescription('Text space is limited to ' . $config['descriptionMaxLength'] . ' characters.');

        $this->addElement(
            'select',
            'descriptionPosition',
            [
                'label'        => 'Description Position',
                'multioptions' => ['left' => 'Left', 'center' => 'Center', 'right' => 'Right']
            ]
        );

        $this->_initLinkDisplayGroup();

        $this->addElement('checkbox', 'enabled', array('label' => 'Show on user end', 'decoration' => 'simple'));

        return $this;
    }

    /**
     * @return AbstractForm
     */
    protected function _initLinkDisplayGroup()
    {
        $groupElements = [];

        $this->addElement(
            'select',
            'linkType',
            [
                'label'        => 'Link Type',
                'multioptions' => ['' => 'No Link', 'url' => 'URL', 'cms' => 'Site Page']
            ]
        );
        $groupElements[] = 'linkType';

        $this->addElement('url', 'url', ['label' => 'URL']);
        $groupElements[] = 'url';
        if ($this->_getData('linkType') !== 'url') {
            $this->getElement('url')->removeValidator('url');
        }

        $this->addElement(
            'select',
            'pageId',
            [
                'label'        => 'Site Page',
                'escapeLabel'  => false,
                'multioptions' => ['' => 'Select One'] + App_Cms_Obj::getInstance()->getPages4Select()
            ]
        );
        $groupElements[] = 'pageId';

        $this->addElement('text', 'linkText', array('label' => 'Link Text'));
        $groupElements[] = 'linkText';

        $this->addDisplayGroup($groupElements, 'linkTypeGroup', array('legend' => 'Link'));

        if (($linkType = $this->_getData('linkType'))) {
            switch ($linkType) {
                case 'url':
                    $this->getElement('url')->setRequired();
                    break;
                case 'cms':
                    $this->getElement('pageId')->setRequired();
                    break;
            }
            $this->getElement('linkText')->setRequired();
        }

        $groupElements = Qs_Array::excludeValue($groupElements, 'linkType');
        $this->_addAsterisk($groupElements);
        $this->_addHiddenClass($groupElements);

        return $this;
    }

    /**
     * @return array|bool
     */
    protected function _getPages4Select()
    {
        $cmsObj = \App_Cms_Obj::getInstance();
        return $cmsObj->getPages4Select();
    }

    /**
     * @param array|string $elementsNames
     * @return AbstractForm
     */
    protected function _addAsterisk($elementsNames)
    {
        if (!is_array($elementsNames)) {
            $elementsNames = array($elementsNames);
        }

        foreach ($elementsNames as $elementName) {
            $element = $this->getElement($elementName);
            if (!$element->isRequired()) {
                $element->getDecorator('Label')->setOption('class', 'required');
            }
        }

        return $this;
    }

    /**
     * @param array|string $elementsNames
     * @return AbstractForm
     */
    protected function _addHiddenClass($elementsNames)
    {
        if (!is_array($elementsNames)) {
            $elementsNames = array($elementsNames);
        }

        foreach ($elementsNames as $elementName) {
            $element = $this->getElement($elementName);

            /** @var \Qs_Form_Decorator_Label $label */
            $label = $element->getDecorator('Label');
            $label->setTagOption('class', 'hidden');

            /** @var \Qs_Form_Decorator_HtmlTag $htmlTag */
            $htmlTag = $element->getDecorator('HtmlTag');
            $htmlTag->setOption('class', 'hidden');
        }

        return $this;
    }

//    public function render(\Zend_View_Interface $view = null)
//    {
//        /** @var \Qs_Doc $doc */
//        $doc = \Zend_Registry::get('doc');
//
//        $doc->addScript('js/app/wideSlide/admin/form.js');
//
//        $options = array(
//            'form'     => $this->getId(),
//            'linkType' => $this->getElement('linkType')->getId(),
//            'url'      => $this->getElement('url')->getId(),
//            'pageId'   => $this->getElement('pageId')->getId(),
//            'linkText' => $this->getElement('linkText')->getId(),
//        );
//        $doc->addInitObject('App_WideSlide_Admin_Form', array($options), 'wideSlideFrom');
//
//        return parent::render($view);
//    }
}