<?php

namespace App\Event;

use App\Event\Form\ConfigForm;
use App\User\Login\View as LoginView;
use App\User\Autocomplete\View as UserAutocompleteView;
use App\User\Auth as UserAuth;
use App_ECommerce_Checkout_LoginBlock_View;
use App_Sitemap_Xml_Writer;
use Qs_Constant;
use Qs_Doc_Item;
use Qs_Form;
use Qs_Http;
use Qs_Request;
use Qs_SiteMap;
use DateTime;
use Eluceo\iCal\Component\Calendar as VCalendar;
use Eluceo\iCal\Component\Event as VEvent;
use Exception;
use Qs_ViewController;
use Zend_Registry;
use App\Event\Form\ConfigForm as EventConfigForm;

/**
 * @method \App\Event\Obj _getDataObj()
 */
class View extends Qs_ViewController
{
    const MSG_ADDED_MULTI = 'msgAddedMulti';

    const MSG_ADDED_CART = 'msgAddedCart';
    const MSG_ADDED_CART_MULTI = 'msgAddedCartMulti';

    public static $calendarAlias = [
        Entity::CALENDAR_MONTH      => 'month',
        Entity::CALENDAR_BASICWEEK  => 'week',
        Entity::CALENDAR_BASICDAY   => 'day',
        Entity::CALENDAR_AGENDAWEEK => 'agenda-week',
        Entity::CALENDAR_AGENDADAY  => 'agenda-day',
    ];

    protected $_viewName;

    protected $_actions = ['list', 'print', 'view', 'insert', 'back', 'load', 'renderEvent', 'renderAttendee', 'iCal'];

    protected function _init()
    {
        $this->_messageTemplates[static::MSG_ADDED] = 'Attendee has been added';
        $this->_messageTemplates[static::MSG_ADDED_MULTI] = 'Attendees have been added';

        $this->_messageTemplates[static::MSG_ADDED_CART] = 'Attendee has been added to Shopping Cart';
        $this->_messageTemplates[static::MSG_ADDED_CART_MULTI] = 'Attendees have been added to Shopping Cart';
        return parent::_init();
    }

    protected function _initAction()
    {
        $obj = $this->_getDataObj();
        $blockType = $this->getConfig('type', ConfigForm::TYPE_CALENDAR);
        $params = $this->getRestParams();
        $count = count($params);
        $request = array_merge_recursive(Qs_Request::get('get'), Qs_Request::get('post'));
        $requestAction = Qs_Request::getPostValue('action');

        $auth = UserAuth::getInstance();
        if ($auth->isLoggedIn()) {
            $this->_getDataObj()->setUserId($auth->getData('id'));
        }

        if (ConfigForm::TYPE_CALENDAR === $blockType) {
            if (0 === $count) {
                if (empty($request)) {
                    $obj->setDate(new DateTime());
                    $this->_action = 'list';
                } elseif (in_array($requestAction, ['load', 'renderEvent', true])) {
                    $this->_action = $requestAction;
                } else {
                    $this->_do404();
                }
            } elseif (2 === $count && in_array($params[0], self::$calendarAlias)
                && false !== ($date = DateTime::createFromFormat('Y-m-d|', $params[1]))
            ) {
                $this->_viewName = array_search($params[0], self::$calendarAlias);
                $obj->setDate($date);
                if (empty($request)) {
                    $this->_action = 'list';
                } else {
                    $this->_do404();
                }
            } elseif (2 === $count && 'print' === $params[0]
                && false !== ($date = DateTime::createFromFormat('Y-m|', $params[1]))
            ) {
                if (empty($request)) {
                    $obj->setDate($date);
                    $this->_action = 'print';
                } else {
                    $this->_do404();
                }
            } else {
                $this->_do404();
            }
        } elseif (ConfigForm::TYPE_DETAILS === $blockType) {
            if ($this->_doc->isPagePreviewMode()) {
                $obj->initFromForm($this->getConfig('previewData')->dbData->toArray());
                $this->_action = 'view';
            } else if (1 === $count && $params[0] && ($data = $obj->setPrimaryKeyByAlias($params[0])->getData())) {
                if (empty($request)) {
                    $this->_action = 'view';
                } elseif (in_array($requestAction, ['renderAttendee', 'insert'])) {
                    $this->_action = $requestAction;
                } else {
                    $this->_do404();
                }
            } elseif (2 === $count && 'ical' === $params[0] && ($data = $obj->setPrimaryKeyByAlias($params[1])->getData())) {
                if (empty($request)) {
                    $this->_action = 'iCal';
                } else {
                    $this->_do404();
                }
            } else {
                $this->_do404();
            }
        } else {
            throw new Exception('Unknown block type "' . $blockType . '"');
        }

        return parent::_initAction();
    }

    public static function getPageUrlByType($blockType)
    {
        return Qs_SiteMap::findFirst(
            null,
            ['type' => Qs_SiteMap::classToType(get_called_class())],
            ['type' => $blockType],
            'url'
        );
    }

    public static function getViewUrl($alias = null)
    {
        if (!$alias) {
            $alias = '%s';
        }
        return Qs_SiteMap::findFirst(null, ['type' => 'Event\\'], ['type' => EventConfigForm::TYPE_DETAILS], 'url')
               . '/' . $alias;
    }

    protected function _getListItem()
    {
        $obj = $this->_getDataObj();
        $list = $obj->getList();

        $baseId = Qs_SiteMap::classToId($this);
        $item = [
            'containerId' => $baseId . '-block',
            'calendarId'  => $baseId . '-calendar',
            'eventListId' => $baseId . '-list',
            'eventTypes'  => Model::getEventTypes4Select(),
            'finalUrl'    => Qs_Request::getFinalUrl(),
            'detailsUrl'  => static::getPageUrlByType(ConfigForm::TYPE_DETAILS),
            'date'        => $obj->getDate(),
            'listHtml'    => $this->_renderEventList($list),
            'tpl'         => $this->getTemplate('list.tpl')
        ];
        $this->_doc->addScript('js/moment.js');

        $this->_doc->addStylesheet('css/thirdpart/fullcalendar/fullcalendar.css');
        $this->_doc->addScript('js/fullcalendar/fullcalendar.js');
        $this->_doc->addScript('js/fullcalendar/lang/en-gb.js');

        $this->_doc->addStylesheet('css/thirdpart/qtip/jquery.qtip.css');
        $this->_doc->addScript('js/qtip/jquery.qtip.js');

        $this->_doc->addScript('js/jquery.required.js');
        $this->_doc->addScript('js/app/event/calendar.js');

        $options = [
            'containerId'     => $item['containerId'],
            'calendarId'      => $item['calendarId'],
            'eventListId'     => $item['eventListId'],
            'finalUrl'        => $item['finalUrl'],
            'detailsUrl'      => $item['detailsUrl'],
            'calendarAlias'   => self::$calendarAlias,
            'defaultDate'     => $obj->getDate()->format('Y-m-d'),
            'defaultView'     => $this->_viewName,
            'list'            => $list
        ];
        if ($this->_doc->isPagePreviewMode()) {
            $options['historySupported'] = false;
        }
        $this->_doc->addInitObject('app.event.Calendar', [$options]);

        return $item;
    }

    protected function _doLoad()
    {
        exit;
    }

    /**
     * Return list of events for specified period
     * POST param: start    'YYY-MM-DD'
     * POST param: end      'YYY-MM-DD'
     * POST param: timezone
     */
    protected function _doLoadAjax()
    {
        $obj = $this->_getDataObj();
        $obj->setDate(Qs_Request::getPostValue('date'));
        $range = new Range(Qs_Request::getPostValue('start'), Qs_Request::getPostValue('end'));
        $obj->setRange($range);
        $list = $obj->getList();
        $this->_displayJson(['list' => $list, 'listHtml' => $this->_renderEventList($list)]);
    }

    protected function _renderEventList(array $list)
    {
        $date = $this->_getDataObj()->getDate();
        $prev = clone $date;
        $prev->modify('first day of this month -1 month');

        $next = clone $date;
        $next->modify('first day of this month +1 month');

        $monthStart = clone $date;
        $monthStart = $monthStart->modify('first day of this month')->format('Y-m-d H:i:s');
        $monthEnd = clone $date;
        $monthEnd = $monthEnd->modify('last day of this month')->format('Y-m-d H:i:s');

        // unset non month events
        foreach ($list as $idx => $row) {
            if (!($row['start'] <= $monthEnd && $row['end'] >= $monthStart)) {
                unset($list[$idx]);
            }
        }

        $today = new DateTime();
        $maxDate = clone $today;
        $maxDate->modify('+1 year');

        $minDate = clone $today;
        $minDate->modify('-1 year');

        $finalUrl = Qs_Request::getFinalUrl();
        $item = [
            'title'       => $date->format('F Y'),
            'prevUrl'     => ($prev->format('Y-m') < $minDate->format('Y-m'))
                ? null : $finalUrl . '/month/' . $prev->format('Y-m-d'),
            'nextUrl'     => ($next->format('Y-m') > $maxDate->format('Y-m'))
                ? null : $finalUrl . '/month/' . $next->format('Y-m-d'),
            'todayUrl'    => ($date->format('Y-m') === date('Y-m'))
                ? null : $finalUrl . '/month/' . date('Y-m-01'),
            'list'        => $list,
            'detailsUrl'  => static::getPageUrlByType(ConfigForm::TYPE_DETAILS),
            'tpl'         => $this->getTemplate('eventList.tpl')
        ];

        $this->_doc->assign('item', new Qs_Doc_Item($item));
        return $this->_doc->fetchTemplate($item['tpl']);
    }

    protected function _doPrint()
    {
        $this->_doc->setLayoutTemplate(Qs_SiteMap::getTemplate('PrintDoc/index.tpl'));
        $this->_doc->setBodyTemplate($this->getTemplate('print.tpl'));
        $this->_getDataObj()->setListIncludeTimeRanges(true);
        $item = [
            'containerId' => Qs_SiteMap::classToId($this),
            'date'        => $this->_getDataObj()->getDate(),
            'list'        => $this->_getDataObj()->getList(),
        ];
        $this->_doc->assign('item', new Qs_Doc_Item($item));
        Qs_Constant::set('DEBUG', false);
        return $this;
    }

    /**
     * @param \Qs_Form $form Initialized form from _doInsert action
     * @return array|null
     */
    protected function _getViewItem(Qs_Form $form = null)
    {
        $item = $this->_getDataObj()->getData();

        $item['userLoggedIn'] = false;
        $item['containerId'] = Qs_SiteMap::classToId($this) . '-view';
        $item['calendarUrl'] = static::getPageUrlByType(ConfigForm::TYPE_CALENDAR);
        $item['detailsUrl'] = static::getPageUrlByType(ConfigForm::TYPE_DETAILS);
        $item['tpl'] = $this->getTemplate('view.tpl');

        if ($item['registrationAllowed']) {
            if (UserAuth::getInstance()->isLoggedIn()) {
                $item['userLoggedIn'] = true;
                $this->_initSignupForm($item, $form);
            } else {
                if (null === $form) {
                    $this->_initLoginBlock($item);
                }
                if (Entity::TYPE_REGISTRATION === $item['type']) {
                    $this->_initSignupForm($item, $form);
                }
            }
        }

        return $item;
    }

    protected function _doView()
    {
        $item = $this->_getViewItem();
        $this->_initPageSeo($item);
        $this->_addItem($item);
        $this->_postView();
        return $this;
    }

    protected function _initLoginBlock(&$item)
    {
        if ('view' === $this->_action) {
            /** @var \App\User\Login\Form\LoginBlockForm $loginForm */
            LoginView::setSessionRedirectPageAlias(CURRENT_PAGE);
            $loginView = new LoginView();
            $loginView->setDoc($this->_doc);
            $loginForm = $loginView->getLoginBlockForm();
            $loginForm->prependId();
            $loginForm->initRender();

            $item['loginBlock'] = [
                'containerId' => 'event-login-block',
                'formHtml'    => $loginForm->render(),
                'registerUrl' => Qs_SiteMap::find(null, ['type' => 'User\\Register\\'], null, 'url')
            ];

            /** @var $doc \Qs_Doc */
            $doc = Zend_Registry::get('doc');
            $doc->addScript('js/jquery.defaultHint.js');
            $doc->addInitFunction('$("#' . $loginForm->getId() . '").defaultHint', [['useWrapper' => true]]);
        }
        return $this;
    }

    protected function _doInsert()
    {
        $attendeeObj = $this->_getDataObj()->getAttendeeObj();
        $form = $this->_getSignupForm();
        if ($form->validate()) {
            $data = $form->getValues();
            $attendeeObj->initFromForm($data);
            if (false === $attendeeObj->insert()) {
                $this->_setBackErrors($attendeeObj->getErrors());
            } else {
                $this->_postInsert();
            }
            $this->_doBack();
        } else {
            $item = $this->_getViewItem($form);
            $this->_addItem($item);
        }
        return $this;
    }

    protected function _postInsert()
    {
        parent::_postInsert();
        $data = $this->_getDataObj()->getAttendeeObj()->getData();

        if (empty($data['total'])) {
            $this->_setBackMessage(1 < count($data['attendee']) ? self::MSG_ADDED_MULTI : self::MSG_ADDED);
            $this->_doBack();
        } else {
            if (!$this->_doc->getAuth()->getIdentity()) {
                App_ECommerce_Checkout_LoginBlock_View::setSessionValue('skipLogin', true);
            }
            if (($url = Qs_SiteMap::findFirst(null, ['type' => 'ECommerce_Cart_'], null, 'url'))) {
                Qs_Http::redirect($url);
            } else {
                $this->_setBackMessage(1 < count($data['attendee']) ? self::MSG_ADDED_CART_MULTI : self::MSG_ADDED_CART);
            }
        }

        return $this;
    }

    protected function _getSignupForm(array $options = [])
    {
        $options = array_merge($this->_getSignupFormOptions(), $options);
        $form = $this->_getFormInstance('new', $options);
        $form->setDefaults();
        return $form;
    }

    protected function _getSignupFormOptions()
    {
        $obj = $this->_getDataObj();
        $attendeeObj = $obj->getAttendeeObj();
        $auth = UserAuth::getInstance();
        $isLoggedIn = $auth->isLoggedIn();
        $options = [
            'allowCurrentUser'    => ($isLoggedIn)
                    ? (false == $attendeeObj->getAttendeeRegistered($auth->getData('id'), $auth->getData('email')))
                    : true,
            'allowMembers'        => $isLoggedIn,
            'currentUserId'       => $isLoggedIn ? $auth->getData('id') : null,
            'allowNonMembers'     => $obj->getNonMembersAllowed(),
            'userAutocompleteUrl' => UserAutocompleteView::getUserAutocompleteUrl4Event(),
        ];
        return $options;
    }

    protected function _getNewForm(array $options = [])
    {
        return $this->_getSignupForm($options);
    }

    protected function _initSignupForm(&$item, Qs_Form $form = null)
    {
        if (null === $form) {
            $options = [];
            if (isset($item['loginBlock'])) {
                $options['loginBlockId'] = $item['loginBlock']['containerId'];
            }
            $form = $this->_getNewForm($options);
        }
        $item['signupFormHtml'] = $form->render();
        return $this;
    }

    protected function doRenderEvent()
    {
        exit;
    }

    /**
     * request POST:
     * int $eventId
     *
     * response JSON:
     * int eventId
     * string eventHtml
     */
    protected function _doRenderEventAjax()
    {
        if (null == ($eventId = Qs_Request::getPostValue('eventId'))) {
            $this->_displayJson(['isError' => true, 'message' => 'Wrong request']);
        }
        $this->_getDataObj()->setPrimaryKey($eventId);
        if (null == ($item = $this->_getDataObj()->getData())) {
            $this->_displayJson(['isError' => true, 'message' => 'Wrong eventId']);
        }

        $item['viewUrl'] = static::getPageUrlByType(ConfigForm::TYPE_DETAILS) . '/' . $item['alias'];
        $item['tpl'] = $this->getTemplate('event.tpl');
        $item['config'] = $this->getConfig()->toArray();

        $this->_doc->assign('item', new Qs_Doc_Item($item));
        $html = $this->_doc->fetchTemplate($item['tpl']);

        $response = [
            'eventId'   => $eventId,
            'eventHtml' => $html
        ];
        $this->_displayJson($response);
    }

    protected function _getFormOptions($type = null)
    {
        $options = parent::_getFormOptions($type);
        $options['eventObj'] = $this->_getDataObj();
        $options['attendeeObj'] = $this->_getDataObj()->getAttendeeObj();
        return $options;
    }

    protected function _doICal()
    {
        $data = $this->_getDataObj()->getData();
        $calendar = new VCalendar(SITE_NAME);
        $hostSuffix = '@' . SITE_NAME;
        $detailsUrl = static::getPageUrlByType(ConfigForm::TYPE_DETAILS) . '/';
        foreach ($data['timeRanges'] as $idx => $range) {
            $event = new VEvent();
            $event->setUniqueId($data['id'] . '-' . $idx . $hostSuffix);
            $event->setDtStart(new DateTime($data['startDate'] . ' ' . $range['startTime']));
            $event->setDtEnd(new DateTime($data['endDate'] . ' ' . $range['endTime']));
            $event->setLocation($data['location']);
            $event->setUrl($detailsUrl . $data['alias']);
            $event->setSummary($data['title']);
            $calendar->addEvent($event);
        }
        $filename = preg_replace('/\W+/', '_', $data['title']);
        header('Content-Type: text/calendar; charset=utf-8');
        header('Content-Disposition: attachment; filename="' . $filename . '.ics"');
        echo $calendar->render();
        exit;
    }

    protected function _doRenderAttendee()
    {
        exit;
    }

    /**
     * post param: int $lastIndex
     */
    protected function _doRenderAttendeeAjax()
    {
        if (null === ($lastIndex = Qs_Request::getPostValue('lastIndex'))) {
            $this->_displayJson(['isError' => 'true', 'message' => 'Wrong request']);
            exit;
        }

        $this->_doc
            ->clearInlineScripts()
            ->clearInitFunctions()
            ->clearScripts()
            ->clearStylesheets();

        $formIndex = (int) $lastIndex + 1;
        $form = $this->_getSignupForm([
                'renderMode'       => Form\NewForm::RENDER_MODE_ATTENDEE,
                'attendeeIndex'    => $formIndex,
            ]);
        $response = [
            'formHtml'  => $form->render(),
            'formIndex' => $formIndex,
            'evalData'  => $this->_doc->getResources()
        ];
        $this->_displayJson($response);
        exit;
    }

    public function writeXmlSitemap(App_Sitemap_Xml_Writer $xml)
    {
        if (ConfigForm::TYPE_DETAILS != $this->getConfig('type')) {
            return $this;
        }
        return $this->writeDefaultXmlSitemap($xml);
    }
}