<?php

namespace App\Blog;

use Qs_Http;
use Qs_Array;
use Qs_Request;
use Qs_Translate;
use Qs_Navigation;
use App\Form\FormMetaTrait;
use App_SideBlock_Item_Interface;
use Zend_Feed;

/**
 * @method \App\Blog\Obj _getDataObj()
 */
class View extends AbstractView implements App_SideBlock_Item_Interface
{
    protected $_actions = array('list', 'calendar', 'view', 'login', 'feed', 'tag', 'date', 'category', 'author');
    protected $_specialParams = array('feed', 'tag', 'date', 'category', 'author');
    protected $_hasLog = true;
    protected $_logIgnoredControllers = array('App_Cms_View');
    protected $_filterHeader;
    protected $_isParamsParsed = false;

    public function preDispatch(array &$items)
    {
        $this->_parseParams();
        if ($this->_defaultAction == 'view' || in_array($this->_defaultAction, $this->_specialParams)) {
            foreach ($items as $i => $item) {
                if ($item['type'] == 'HtmlBlock_') {
                    unset($items[$i]);
                    break;
                }
            }
        }
        return $this;
    }

    public function exec()
    {
        $this->_parseParams();
        parent::exec();
        $this->_addSubBlocks();
        return $this;
    }

    protected function _parseParams()
    {
        if ($this->_isParamsParsed) {
            return $this;
        }

        $params = $this->getRestParams();
        if (count($params) >= 1) {
            if (($param = strtolower($params[0])) && in_array($param, $this->_specialParams)) {
                $this->_defaultAction = $param;
            } else if (($id = $this->_getDataObj()->getIdByAlias($params[0]))) {
                if (1 == count($params)) {
                    $this->_getDataObj()->setPrimaryKey($id);
                    $this->_defaultAction = 'view';
                } else {
                    $this->_doc->display404();
                }
            } else {
                $this->_doc->display404();
            }
        }

        $this->_isParamsParsed = true;

        return $this;
    }

    protected function _getListOptions()
    {
        $options = parent::_getListOptions();
        $options['viewAlias'] = $this->_getViewAlias();
        return $options;
    }

    protected function _getLog()
    {
        if (null === $this->_log) {
            parent::_getLog();

            $message = 'Viewed "%filterTitle%" %itemsName% list';
            $this->_log->setAction('category', $message);
            $this->_log->setAction('date', $message);
            $this->_log->setAction('tag', $message);
            $this->_log->setAction('author', $message);
        }
        return $this->_log;
    }

    protected function _log()
    {
        if ($this->_hasLog) {
            $this->_getLog()->write($this->_action, $this->_getObjectInfo());
        }
        return $this;
    }

    protected function _getObjectInfo()
    {
        $info = $this->_getDataObj()->getObjectInfo();
        if (in_array($this->_action, $this->_specialParams)) {
            $info['filterTitle'] = $this->_filterHeader;
            $info['itemsName'] = $this->getConfig('itemsName');
        }
        return $info;
    }

    protected function _doView()
    {
        $this->_addFeedLink();

        $item = $this->_getDataObj()->getData();
        if (empty($item) || 'y' != $item['enabled'] || 'y' != $item['categoryEnabled']) {
            $this->_doc->display404();
        }

        $item['backUrl'] = $this->_getBackUrl(CURRENT_PAGE_FINAL, CURRENT_PAGE_FINAL);
        $item['viewAlias'] = $this->_getViewAlias();

        if (!empty($item['password']) && !$this->_checkUserAuth($item['id'])) {
            if ($this->_getCommentsItemId() == Qs_Request::getRequestValue('__idItem')
                && Qs_Request::getRequestValue('action')
            ) {
                $data = array(
                    'isValid'    => false,
                    'formErrors' => array('Your session has expired. Please refresh this page to try again.')
                );
                $this->_displayJson($data);
            }
            return $this->_showLoginForm();
        }
        $this->_initPageSeo($item);
        $item['config'] = $this->getConfig()->toArray();
        $item['tpl'] = $this->getTemplate('view.tpl');
        $this->_addItem($item);
        if ($item['allowComment'] == 'y') {
            $this->_addComments($item['id']);
        }
        $alias = (empty($item['alias'])) ? $item['id'] : $item['alias'];
        Qs_Navigation::append(array('title' => $item['title'], 'url' => $item['backUrl'] . '/' . $alias));
        $this->_postView();

        return $this;
    }

    protected function _getCommentsItemId()
    {
        $itemId = $this->getIdItem();
        $itemId = -$itemId;
        return $itemId;
    }

    protected function _addComments($idPost)
    {
        $commentView = new Comment\View(['groupName' => $this->getOption('groupName')]);
        $commentView->setIdItem($this->_getCommentsItemId());
        $commentView->setDoc($this->_doc);
        $commentView->setIdPost($idPost);
        $commentView->exec();
        return $this;
    }

    protected function _doFeed()
    {
        $feed = Zend_Feed::importArray($this->_getDataObj()->getFeedData(), 'rss');
        $feed->send();
        exit();
    }

    protected function _doTag()
    {
        $tags = array_slice($this->getRestParams(), 1);
        if (empty($tags)) {
            $this->_doc->display404();
        }

        $tagsTitle = implode(', ', $tags);
        $this->_filterHeader = Qs_Translate::getPlural('Tag', count($tags)) . ': ' . $tagsTitle;
        $this->_addTitleItem($this->_filterHeader);

        $this->_doc->appendTitle($tagsTitle);

        Qs_Navigation::append(array(
            'title' => $this->_filterHeader,
            'url'   => $this->_getViewAlias() . '/tag/' . implode('/', $tags))
        );

        $this->_getDataObj()->setTags($tags);

        $this->_doList();

        return $this;
    }

    protected function _doDate()
    {
        $params = $this->getRestParams();
        array_shift($params);
        if (false == ($date = $this->_parseDateParams($params))) {
            $this->_doc->display404();
        }

        switch (count($params)) {
            case 1:
                $dateTitle = $date;
                break;
            case 2:
                $dateTitle = date('F Y', strtotime($date . '-01'));
                break;
            default:
                $dateTitle = date('F d, Y', strtotime($date));
        }

        $this->_filterHeader = 'Date: ' . $dateTitle;
        $this->_addTitleItem($this->_filterHeader);

        $this->_doc->appendTitle($dateTitle);

        Qs_Navigation::append(array(
            'title' => $this->_filterHeader,
            'url'   => $this->_getViewAlias() . '/date/' . str_replace('-', '/', $date)
        ));

        $this->_getDataObj()->setDate($date);

        $this->_doList();

        return $this;
    }

    protected function _parseDateParams($params)
    {
        $date = array();
        $date[0]  = (isset($params[0]) && 1900 <= $params[0] && $params[0] <= 2500) ? sprintf("%04d", $params[0]) : null;
        $date[1]  = (isset($params[1]) && 01 <= $params[1] && $params[1] <= 12) ? sprintf("%02d", $params[1]) : null;
        $date[2]  = (isset($params[2]) && 01 <= $params[2] && $params[2] <= 31) ? sprintf("%02d", $params[2]) : null;

        $dateStr = trim(implode('-', $date), '-');

        $paramsStr = implode('-', $params);

        if (empty($date[0])
            || (empty($params[1]) && !empty($params[2]))
            || (!empty($params[1]) && $date[1] != $params[1])
            || (!empty($params[2]) && $date[2] != $params[2])
            || ($dateStr != $paramsStr)
        ) {
            return false;
        }

        return $dateStr;
    }

    protected function _doCategory()
    {
        $params = $this->getRestParams();
        $alias = trim(Qs_Array::get($params, 1));
        $this->_getDataObj()->setCategoryAlias($alias);
        $category = $this->_getDataObj()->getCategory();

        if (!$category || count($params) > 2) {
            $this->_doc->display404();
            return $this;
        }

        $this->_filterHeader = 'Category: ' . $category['title'];
        $this->_addTitleItem($this->_filterHeader);
        $this->_initPageSeo($category);
        Qs_Navigation::append(array(
            'title' => $this->_filterHeader,
            'url'   => $this->_getViewAlias() . '/category/' . $alias
        ));

        $this->_doList();

        return $this;
    }

    protected function _doCalendar()
    {
        return $this->addCalendarBlock();
    }

    protected function _doCalendarAjax()
    {
        $year = Qs_Request::getRequestValue('year', null);
        $month = Qs_Request::getRequestValue('month', null);

        $response = array(
            'status' => 'success',
            'dates'  => $this->_getDataObj()->getMonthPosts($year, $month)
        );

        $this->_displayJson($response);
    }

    protected function _doAuthor()
    {
        $params = $this->getRestParams();
        $paramsCount = count($params);
        if (2 !== $paramsCount) {
            $this->_doc->display404();
            return $this;
        }
        $author = $params[1];

        $this->_filterHeader = 'Author: ' . $author;
        $this->_addTitleItem($this->_filterHeader);
        Qs_Navigation::append(array(
            'title' => $this->_filterHeader,
            'url'   => $this->_getViewAlias() . '/author/' . $author
        ));

        $this->_getDataObj()->addFilter(array('author' => $author));
        $this->_doList();

        return $this;
    }

    public function writeXmlSitemap(\App_Sitemap_Xml_Writer $xml)
    {
        if ('default' != $this->getConfig('type', 'default')) {
            return $this;
        }
        $pageUrl = ('y' == $this->_doc->getOption('isSecure')) ? BASE_URL_HTTPS : BASE_URL_HTTP;
        $pageUrl .= '/' . $this->_doc->getOption('fullAlias');

        $stmt = $this->_getDataObj()->getListStatement4XmlSitemap();
        while ($item = $stmt->fetch()) {
            $xml->writeUrl($pageUrl . '/' . $item['alias']);
        }

        return $this;
    }

    protected function _addFeedLink()
    {
        $this->_doc->addStyleSheet (
            BASE_URL_LANGUAGE . '/' . $this->_getViewAlias() . '/feed',
            array (
                'type'  => 'application/rss+xml',
                'rel'   => 'alternate',
                'title' => SITE_NAME
            )
        );
        return $this;
    }

    protected function _getLoginForm()
    {
        $cancelUrl = $this->_getBackUrl(CURRENT_PAGE_FINAL, BASE_URL_LANGUAGE . '/' . CURRENT_PAGE_FINAL);
        $options = array('cancelUrl' => $cancelUrl, 'id' => 'blog-form-login');
        return $this->_getFormInstance('login', $options);
    }

    protected function _showLoginForm($form = null)
    {
        if (null === $form) {
            $form = $this->_getLoginForm();
            $form->setDefaults();
        }

        $postTitle = $item = $this->_getDataObj()->getData('title');
        Qs_Navigation::append(array('title' => $postTitle));
        $this->_addTitleItem($postTitle);

        $this->_addFormItem($form);

        return $this;
    }

    protected function _addTitleItem($title)
    {
        $item = array(
            'tpl'     => $this->getTemplate('title-item.tpl'),
            'title'   => $title,
            'backUrl' => $this->_getBackUrl(CURRENT_PAGE_FINAL, CURRENT_PAGE_FINAL)
        );

        $this->_addItem($item);
        return $this;
    }

    protected function _doLogin()
    {
        $form = $this->_getLoginForm();

        if ($form->validate()) {
            $values = $form->getValues();
            $data = $this->_getDataObj()->getData();
            if ($values['password'] == $data['password']) {
                $this->_setUserAuth4Post($data['id']);
                Qs_Http::redirect($this->url());
            } else {
                $form->getElement('password')->addError('Invalid password');
            }
        }

        $this->_showLoginForm($form);

        return $this;
    }

    protected function _setUserAuth4Post($idPost)
    {
        $name = 'post_'  . $idPost;
        $session = $this->_getSession();
        $session->{$name} = true;
        $session->setExpirationSeconds(3600, $name);
        return $this;
    }

    protected function _checkUserAuth($idPost)
    {
        $name = 'post_'  . $idPost;
        $session = $this->_getSession();
        return (isset($session->{$name}) && true === $session->{$name});
    }

    protected function _addSubBlocks()
    {
        $oldGroupName = $this->_doc->getGroupName();
        $this->_doc->setGroupName('RIGHT_ITEMS');
        $blocks = $this->getConfig('blocks', array());
        foreach ($blocks as $name) {
            $method = 'add' . $name . 'Block';
            $this->{$method}();
        }
        $this->_doc->setGroupName($oldGroupName);
        return $this;
    }

    public function addCategoryBlock()
    {
        $item = array();
        $item['list'] = $this->_getDataObj()->getAllCategories();
        if (!empty($item['list'])) {
            $item['viewAlias'] = $this->_getViewAlias() . '/category';
            $item['title'] = 'Categories';
            $item['currentId'] = $this->_getDataObj()->getCategoryId();
            $item['tpl'] = $this->getTemplate('categories-block.tpl');
            $this->_addItem($item);
        }
        return $this;
    }

    public function addTagBlock()
    {
        $item = array();
        $item['list'] = $this->_getDataObj()->getAllTags();
        if (!empty($item['list'])) {
            $item['viewAlias'] = $this->_getViewAlias() . '/tag';
            $item['title'] = 'Tags';
            $item['currentTags'] = $this->_getDataObj()->getTags();
            $item['tpl'] = $this->getTemplate('tags-block.tpl');
            $this->_addItem($item);
        }
        return $this;
    }

    public function addMonthBlock()
    {
        $item = array();
        $item['list'] = $this->_getDataObj()->buildMonthTree();
        if (!empty($item['list'])) {

            $item['currentYear'] = '';
            $item['currentFull'] = '';

            if ($this->_action == 'date') {
                $params = $this->getRestParams();
                array_shift($params);

                switch (count($params)) {
                    case 1:
                        $item['currentYear'] = $params[0];
                        break;

                    case 2:
                        $item['currentYear'] = $params[0];
                        $item['currentFull'] = $params[0] . '-' . $params[1];
                        break;
                }
            }

            $item['viewAlias'] = $this->_getViewAlias();
            $item['tpl'] = $this->getTemplate('month.tpl');

            $this->_addItem($item);
        }
        return $this;
    }

    public function addCalendarBlock()
    {
        $range = $this->_getDataObj()->getPostsDatesRange();
        if (!empty($range)) {
            $item = array(
                'viewAlias' => $this->_getViewAlias(),
                'tpl'       => $this->getTemplate('calendar.tpl'),
            );
            $this->_addItem($item);
            $params = array(
                'dates'     => $this->_getDataObj()->getMonthPosts(),
                'viewAlias' => $this->_getViewAlias() . '/date'
            );

            $params['minDate'] = strtotime($range['min']) * 1000; // timestamp in milliseconds
            $params['maxDate'] = time() * 1000; // timestamp in milliseconds

            $date = $this->_getDataObj()->getDate();
            if ($date) {
                $timestamp = strtotime($date);
                $params['defaultDate'] = date('Y/m/d', $timestamp);
            }

            $this->_doc->addScript('js/jquery-ui.js')
                 ->addScript('js/app/blog.js')
                 ->addStylesheet('css/thirdpart/jquery-ui.css')
                 ->addInitFunction('Blog.initCalendar', array($params));
        }

        return $this;
    }

    public function getSideBlockItem(array $blockData = array())
    {
        $this->_getDataObj()->setFilter(array('featured' => 'y'));

        $ipp = $this->getConfig('featuredBlockIpp');
        $ipp = ($ipp) ? $ipp : 3;
        $this->_getList()->setIsDisabledLimit()->setIpp($ipp);
        $item = $this->_getListItem();

        if (!empty($item['list'])) {
            $item['viewAlias'] = $this->_getViewAlias();
            $item['tpl'] = $this->getTemplate('featured-list.tpl');
            return $item;
        }

        return null;
    }
}