<?php

class App_Cms_Form_SubForm_Meta extends Qs_Form_SubForm
{
    protected $_mode;
    protected $_doc;
    protected $_language;
    protected $_viewController;
    protected $_optionsElements = array();
    protected $_metaOptions = array();
    protected $_isCustomOptions = false;
    protected $_isRedirectFields = false;
    protected $_redirectStatuses = array(
        300 => '300 Multiple Choices',
        301 => '301 Moved Permanently',
        302 => '302 Moved temporarily',
        303 => '303 See Other',
        304 => '304 Not Modified',
        307 => '307 Temporary Redirect'
    );
    protected $_currentPageId = null;

    public function getMode()
    {
        if (null == $this->_mode) {
            $this->_mode = 'edit';
        }
        return $this->_mode;
    }

    public function setMode($mode)
    {
        $this->_mode = $mode;
    }

    public function setViewController($viewController)
    {
        $this->_viewController = $viewController;
    }

    public function getViewController()
    {
        return $this->_viewController;
    }

    public function setLanguage($language)
    {
        $this->_language = $language;
        return $this;
    }

    public function setDoc($doc)
    {
        $this->_doc = $doc;
        return $this;
    }

    public function setMetaOptions($options)
    {
        $this->_metaOptions = $options;
    }

    public function setIsCustomOptions($mode)
    {
        $this->_isCustomOptions = $mode;
    }

    public function setIsRedirectFields($value)
    {
        $this->_isRedirectFields = (bool) $value;
    }

    public function getIsRedirectFields()
    {
        if ($this->_doc->getAuth()->getSuMode()) {
            return ($this->_isRedirectFields && isset($this->_metaOptions['redirect']));
        }
        return ($this->_isRedirectFields && isset($this->_metaOptions['redirect']) && 'y' == $this->_metaOptions['redirect']['show']);
    }

    public function getLanguage()
    {
        return $this->_language;
    }

    public function isDefaultLanguage()
    {
        return $this->_language === Qs_Constant::get('DEFAULT_LANGUAGE');
    }

    public function init()
    {
        parent::init();
        $this->setLegend('Meta');
        $this->addElement('hidden', 'id');
        if ($this->isDefaultLanguage()) {
            $this->addElement('select', 'idParent', array('label' => 'Parent Page', 'escapeLabel' => false));
            if (!$this->_doc->getAuth()->getSuMode()) {
                $this->idParent->setAttrib('disabled', 'disabled');
            }
            $this->addElement(
                'text',
                'alias',
                array('label'       => 'Alias',
                      'required'    => true,
                      'description' => 'Allowed characters: a-z, A-Z, 0-9, "-", "_", "."')
            );
            $this->alias->addValidator(
                'Regex',
                false,
                array('pattern' => '/^[-_a-zA-Z0-9\.]+$/',
                      'messages' => array(
                        Zend_Validate_Regex::NOT_MATCH => 'You have used unallowed symbols. Please note: '
                                                        . 'the allowed ones are a-z, A-Z, 0-9, "-", "_", "."'))
            );

            if ($this->_doc->getAuth()->getSuMode()) {
                $this->addElement('select', 'handler', array('label' => 'Handler', 'required' => true));
                foreach($this->_metaOptions as $name => $option) {
                    $this->_addOptionCheckbox($name, $option['title']);
                    if ($this->_isCustomOptions) {
                        $this->_addOptionCheckbox($name, $option['title'], true, ('y' == $option['show']));
                    }
                }
                $this->addElement('select', 'bodyTemplate', array('label' => 'Body Template'));
            } else {
                $this->addElement('hidden', 'handler');
                foreach ($this->_metaOptions as $name => $option) {
                    if ('y' == $option['show']) {
                        $this->_addOptionCheckbox($name, $option['title']);
                    }
                }
            }
        }
        if (!empty($this->_optionsElements)) {
            $this->addDisplayGroup(
                $this->_optionsElements,
                'optionsGroup',
                array(
                    'legend' => 'Options',
                )
            );
            $this->optionsGroup->removeDecorator('HtmlTag');
        }
        $this->addElement('text', 'title', array('label' => 'Title', 'required' => true));
        $this->addElement('text', 'header', array('label' => 'Header'));
        $this->addElement('text', 'menuTitle', array('label' => 'Menu Title'));
        $this->_addRedirectElements();

        $this->addElement('textarea', 'keywords', array('label' => 'Keywords', 'attribs' => array('rows' => 2)));
        $this->addElement('textarea', 'description', array('label' => 'Description', 'attribs' => array('rows' => 2)));
        $this->addElement('button', 'save', array('label' => 'Save', 'decorators' => array('ViewHelper', 'HtmlTag')));
        $this->addElement('button', 'cancel', array('label' => 'Cancel', 'decorators' => array('ViewHelper', 'HtmlTag')));
        $this->addElement('button', 'edit', array('label' => 'Edit', 'decorators' => array('ViewHelper', 'HtmlTag')));
        $this->addDisplayGroup(
            array('save', 'cancel', 'edit'),
            'meta_toolbar',
            array(
                'decorators' => array(
                    'FormElements',
                    array(
                        'decorator' => 'HtmlTag',
                        'options' => array('tag' => 'dd', 'class' => 'meta_toolbar')
                    )
                )
            )
        );
    }

    protected function _addOptionCheckbox($name, $label, $suMode = false, $checked = false)
    {
        if ($suMode) {
            $name = $name . '4Dommy';
            $label = 'Allow change ('.$label.')';
        }
        $this->addElement(
            'checkbox',
            $name,
            array(
                'label'        => $label,
                'class'        => ($suMode) ? 'allow_change' : '',
                'checkedValue' => 'y',
                'uncheckedValue' => 'n',
                'decorators' => array(
                    array(
                        'decorator' => 'ViewHelper',
                        'options' => array('separator' =>  '<br />')),
                    array(
                        'decorator' => 'Label',
                        'options' => array('placement' => 'APPEND', 'class' => ($suMode) ? 'allow_change_label' : ''))
                )
            )
        );
        if ($checked) {
            $this->{$name}->checked = 'checked';
        }
        $this->_optionsElements[] = $name;
    }

    protected function _addRedirectElements()
    {
        if ($this->getIsRedirectFields()) {
            if ($this->_doc->getAuth()->getSuMode()) {
                $this->addElement(
                    'select',
                    'redirectStatus',
                    array(
                        'label'         => 'Redirect Status',
                        'value'         => 302,
                        'multiOptions'  => $this->_redirectStatuses,
                    )
                );
            }
            $this->addElement(
                'select',
                'redirectType',
                array(
                    'label'         => 'Redirect Type',
                    'multiOptions'  => array('' => '- Select Type -', 'page' => 'Site Page', 'url' => 'Url')
                )

            );
            $this->_currentPageId = intval(Qs_Request::getRequestValue('id'));
            $this->addElement(
                'select',
                'redirectPageId',
                array(
                    'label'         => 'Site Page',
                    'multiOptions'  => array('0' => '- Select Page -') + App_Cms_Obj::getInstance()->getPages4Select(0)
                )
            );
            $this->addElement(
                'text',
                'redirectAlias',
                array(
                    'label'         => 'Redirect page to:',
                    'description'   => 'Example: http://www.google.com',
                )
            );

            $this->redirectType->getDecorator('label')->setOption('class', 'required');
            $this->redirectPageId->getDecorator('label')->setOption('class', 'required');
            $this->redirectAlias->addValidator('StringLength', false, array('max' => 255));
            $this->redirectAlias->getDecorator('label')->setOption('class', 'required');
            $this->addFormRule(array($this, 'validateForm'));
        }
    }

    public function validateForm($data)
    {
        $errors = array();
        if ($this->getIsRedirectFields()) {
            if (isset($data['redirect']) && 'y' == $data['redirect']) {
                if (!isset($data['redirectType']) || empty($data['redirectType'])) {
                    $errors['redirectType'] = "Value is required and can't be empty";
                } else {
                    if ('page' == $data['redirectType']) {
                        if (empty($data['redirectPageId'])) {
                            $errors['redirectPageId'] = "Value is required and can't be empty";
                        } elseif (isset($this->_currentPageId) && $this->_currentPageId == $data['redirectPageId']) {
                            $errors['redirectPageId'] = 'Please choose another page to prevent recursive redirects';
                        } else {
                            $validator = new Zend_Validate_Int();
                            if (!$validator->isValid($data['redirectPageId'])) {
                                $errors['redirectPageId'] = '"Site Page" is in wrong format';
                            }
                            $page = Qs_SiteMap::findFirst(array('id' => intval($data['redirectPageId'])));
                            if (!empty($page) && $page['redirect'] == 'y') {
                                $errors['redirectPageId'] = 'Please choose another page. Page "title" has redirect';
                            }
                        }
                    } else {
                        if (empty($data['redirectAlias'])) {
                            $errors['redirectAlias'] = "Value is required and can't be empty";
                        } else {
                            $url = str_replace('{BASE_URL}', BASE_URL_LANGUAGE, $data['redirectAlias']);
                            $validator = new Qs_Validate_Url();
                            if (!$validator->isValid($url)) {
                                $errors['redirectAlias'] = '"Redirect page to" is in wrong format';
                            }
                        }
                    }
                }
            }
        }
        return (empty($errors)) ? true : $errors;
    }

    public function beforeRender()
    {
        $mode = $this->getMode();
        switch ($mode) {
            case 'view':
                $this->getDecorator('HtmlTag')->setOption('class', 'meta view_mode');
                break;
            default:
                break;
        }
    }

    public function render(Zend_View_Interface $view = null)
    {
        $this->beforeRender();
        return parent::render($view);
    }

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

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

    public function addElement($element, $name = null, $options = null)
    {
        $hiddenFields = $this->_viewController->getConfig('hiddenFields');
        if (is_array($hiddenFields) && in_array($name, $hiddenFields)) {
            return $this;
        }
        parent::addElement($element, $name, $options);
    }
}