<?php

namespace App\WideSlide\Admin\Form;

use App\WideSlide\AbstractObj;
use App_Cms_Obj;
use Qs_Form;
use Qs_Db_Table;
use Qs_Array;
use Qs_Application;
use Qs_Validate_StringLength;
use Qs\Form\DynamicFormTrait;

class AbstractForm extends Qs_Form
{
    use DynamicFormTrait;

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

    protected function _initElements()
    {
        $config = Qs_Application::getConfig('WideSlide')->toArray();

        $this->addElement('text', 'title', ['label' => 'Title', 'required' => false]);

        $this->addElement('select','slideType', ['label' => 'Slide Type', 'multioptions' => [
            AbstractObj::SLIDE_TYPE_IMAGE => 'Image',
            AbstractObj::SLIDE_TYPE_VIDEO => 'Video'
        ]]);

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

        $this->addElement('media', 'video', ['label' => 'Video']);

        $this->addDisplayGroup(['slideType', 'image', 'video'], 'slideTypeGroup', ['legend' => '']);

        if (($slideType = $this->_getData('slideType'))) {
            switch ($slideType) {
                case AbstractObj::SLIDE_TYPE_VIDEO:
                    $this->getElement('video')->setRequired();
                    break;
                case AbstractObj::SLIDE_TYPE_IMAGE:
                    $this->getElement('image')->setRequired();
                    break;
            }
            $this->_addAsterisk(['image', 'video']);
        }

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

        $this->_initLinkDisplayGroup();

        $this->addElement('checkbox', 'enabled', ['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'] + (new Qs_Db_Table('WideSlideLinkType'))->get4Select(),
            ]
        );
        $groupElements[] = 'linkType';

        $this->addElement('url', 'url', ['label' => 'URL']);
        $groupElements[] = 'url';
        if ($this->_getData('linkType') !== AbstractObj::LINK_TYPE_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', ['label' => 'Link Text']);
        $groupElements[] = 'linkText';

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

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

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

        return $this;
    }

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

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

        return $this;
    }

    public function getValues($suppressArrayNotation = false)
    {
        $values = parent::getValues($suppressArrayNotation);
        self::dfClearUnusedValues($values);
        return $values;
    }
}