<?php

use Qs\Form\DynamicFormTrait;

class App_SideBlock_Admin_Form_Abstract extends Qs_Form
{
    use DynamicFormTrait;

    protected $_defaults = array(
        'pageType'        => App_SideBlock_Obj::PAGE_ALL,
        'linkType'        => App_SideBlock_Obj::LINK_NONE,
        'blockType'       => App_SideBlock_Obj::TYPE_HTML,
        'backgroundColor' => 'color-none',
        'show'            => 'y'
    );

    protected $_backgroundColors = array(
        'color-none' => 'None',
        'color-1'    => 'Color 1',
        'color-2'    => 'Color 2',
        'color-3'    => 'Color 3',
    );

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

    protected function _getBackgroundOptions()
    {
        $options = array();

        foreach ($this->_backgroundColors as $color => $title) {
            $class = 'side-block-bg' . (($color) ? ' ' . $color : '');
            $options[$color] = '<span class="' . $class . '"></span>' . htmlspecialchars($title);
        }

        return $options;
    }

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

        $this->addElement(
            'checkbox',
            'hideTitle',
            array('label' => 'Hide Title on user end', 'decoration' => 'simple')
        );

        $this->addElement(
            'radio',
            'backgroundColor',
            array(
                'label'        => 'Background Color',
                'multiOptions' => $this->_getBackgroundOptions(),
                'escape'       => false,
                'separator'    => ' &nbsp;&nbsp;&nbsp; '
            )
        );

        if (App_SideBlock_View::$blockTypes) {
            $this->addElement(
                'select',
                'blockType',
                array(
                    'label'        => 'Block Type',
                    'multiOptions' => array('' => '- Select Type -') + $this->_getBlocksTypes(),
                    'required'     => true,
                )
            );
        }

        $this->addElement(
            'htmlEditor',
            'content',
            array(
                'label'         => 'Content',
                'required'      => !$this->isSubmitted() || $this->isVisible('content'),
                'height'        => 350,
                'hasMsWordNote' => true
            )
        );

        $this->addElement(
            'select',
            'pageId',
            array(
                'label'        => 'Parent Page',
                'escapeLabel'  => false,
                'required'     => !$this->isSubmitted() || $this->isVisible('pageId'),
                'multiOptions' => array('' => '- Select Page -') + App_SideBlock_Admin_Obj::getPages4Select()
            )
        );

        $this->addElement(
            'select',
            'pageType',
            array(
                'label'        => 'Show on Pages',
                'multiOptions' => App_SideBlock_View::$pageTypeTitles,
            )
        );

        $this->addElement(
            'checkboxTree',
            'idPage',
            array(
                'label'           => '',
                'required'        => !$this->isSubmitted() || $this->isVisible('idPage'),
                'multiOptions'    => $this->_getPages4MultiSelect(),
                'treeViewOptions' => array('collapsed' => true),
                'scriptOptions'   => array(
                    'toggleDialog' => array(
                        'message'   => 'Do you want to %action% all pages within this section of the website or just this page?',
                        'buttonNo'  => 'Just %action% this page',
                        'buttonYes' => '%action% all pages in this section'
                    )
                )
            )
        );

        $this->addElement(
            'select',
            'linkType',
            array(
                'label'        => 'Link Type',
                'multiOptions' => App_SideBlock_View::$linkTypeTitles,
            )
        );

        $this->addElement(
            'text',
            'linkTitle',
            array(
                'label'     => 'Link Title',
                'maxlength' => 255,
                'required'  => !$this->isSubmitted() || $this->isVisible('linkTitle')
            )
        );

        $this->addElement(
            'select',
            'linkPageId',
            array(
                'label'        => 'Site Page',
                'escapeLabel'  => false,
                'required'     => !$this->isSubmitted() || $this->isVisible('linkPageId'),
                'multiOptions' => array('' => '- Select Page -') + App_SideBlock_Admin_Obj::getPages4Select()
            )
        );

        $this->addElement(
            'text',
            'linkUrl',
            array(
                'label'       => 'Url',
                'required'    => !$this->isSubmitted() || $this->isVisible('linkUrl'),
                'description' => 'Example: ' . constant('EXAMPLE_URL'),
                'maxlength'   => 255,
                'filters'     => array('StringTrim'),
                'validators' => ['Url']
            )
        );

        $this->addElement('checkbox', 'show', array('label' => 'Show on user end', 'decoration' => 'simple'));
        $this->addFormRule(array($this, 'validateForm'));
        return $this;
    }

    public function validateForm($data)
    {
        $errors = array();

        $blockType = Qs_Array::get($data, 'blockType');
        $id = Qs_Array::get($data, 'id');
        if (null !== $blockType && !in_array($blockType, [App_SideBlock_Obj::TYPE_HTML, App_SideBlock_Obj::TYPE_SITEMAP])
            && 0 < $this->_getBlockCountByType($blockType, $id)
        ) {
            $errors['blockType'] = '"' . Qs_Array::get(App_SideBlock_View::$blockTypeTitles, $blockType, 'Block') . '"'
                . ' side block already exists';
        }

        return (empty($errors)) ? true : $errors;
    }

    protected function _getPages4MultiSelect()
    {
        $result = array();
        $siteMap = App_Cms_Obj::getInstance()->getSiteMap();
        $this->_prepareSiteMap($siteMap, $result);
        return $result;
    }

    protected function _prepareSiteMap($siteMap, &$result)
    {
        $additional = array();
        foreach ($siteMap as $page) {
            if (!array_key_exists('id', $page) || 'y' != $page['showSideBlock']) {
                continue; // skip sitemap.xml items and pages without side blocks
                // @TODO: тут проблема, якщо  в сторінки showSideBlock = "n", а в неї є підсторінка в якої showSideBlock = "y", то підсторіка в дерево не попаде
            }

            if (('y' === $page['isAdditional'])) {
                $destination = &$additional;
            } else {
                $destination = &$result;
            }
            $destination[$page['id']] = $this->_getNode($page);

            if (isset($page['sub']) && $page['sub']) {
                $destination[$page['id']]['sub'] = array();
                $this->_prepareSiteMapSub($page['sub'], $destination[$page['id']]['sub']);
            }
        }

        $result = array_merge($result, $additional);

        return $this;
    }

    protected function _prepareSiteMapSub($siteMap, &$sub)
    {
        foreach ($siteMap as $page) {
            if (!array_key_exists('id', $page) || 'y' != $page['showSideBlock']) {
                continue; // skip sitemap.xml items
            }

            $sub[$page['id']] = $this->_getNode($page);

            if (isset($page['sub']) && $page['sub']) {
                $sub[$page['id']]['sub'] = array();
                $this->_prepareSiteMapSub($page['sub'], $sub[$page['id']]['sub']);
            }
        }

        return $this;
    }

    protected function _getNode($page)
    {

        $node = array(
            'id'    => $page['id'],
            'title' => $page['menuTitle'],
        );
        return $node;
    }

    protected function _getBlockCountByType($type, $id = null)
    {
        $db = Qs_Db::getInstance();
        $select = $db->select();
        $select->from(Qs_Db::getPair('SideBlock'), array('count' => 'COUNT(*)'));
        $select->where('`blockType` = ?', $type);
        if (null !== $id) {
            $select->where('`id` != ?', $id);
        }
        $select->limit(1);
        return $db->fetchOne($select);
    }

    protected function _getBlocksTypes()
    {
        $types = App_SideBlock_View::$blockTypeTitles;
        if (!Qs_SiteMap::findFirst(null, array('type' => 'Form_Contact_Admin_'), null, 'url')) {
            unset($types[App_SideBlock_Obj::TYPE_CONTACT_FORM]);
        }
        if (!Qs_SiteMap::findFirst(null, array('type' => 'Testimonial_Admin_'), null, 'url')) {
            unset($types[App_SideBlock_Obj::TYPE_TESTIMONIAL]);
        }
        if (!Qs_SiteMap::findFirst(null, array('type' => 'Blog\\Admin\\'), null, 'url')) {
            unset($types[App_SideBlock_Obj::TYPE_FEATURED_POSTS]);
        }
        asort($types);
        return $types;
    }
}