<?php

namespace App\Gallery;

use Qs_ViewController;
use Qs_Navigation;
use Qs_Config;
use Qs_ImageFs;
use Qs_Doc;
use Exception;
use App_Sitemap_Xml_Writer;

/**
 * @method \App\Gallery\Obj _getDataObj()
 */
class View extends Qs_ViewController
{
    protected $_actions = ['list', 'view'];
    protected $_logIgnoredControllers = ['App_Cms_View'];
    protected $_photoConfig;
    protected $_photoConfigName = 'Gallery\Image';

    public function preDispatch(&$list)
    {
        if (null !== $this->_restAlias) {
            foreach (array_keys($list) as $idx) {
                if ('HtmlBlock_' == $list[$idx]['type']) {
                    unset($list[$idx]);
                    break;
                }
            }
        }

        return $this;
    }

    public function exec()
    {
        $this->_initAction();

        if (null === $this->_action) {
            $this->_doc->display404();
        }

        return parent::exec();
    }

    protected function _initAction()
    {
        if (null === $this->_action) {
            $params = $this->getRestParams();
            if (empty($params)) {
                $this->_action = reset($this->_actions);
            } else if (1 == count($params)) {
                $this->_action = 'view';
                $this->_getDataObj()->setPrimaryKeyByAlias($params[0]);
            }
        }

        return $this;
    }

    protected function _getListItem($list = null)
    {
        $item = [];
        $item['list'] = $this->_getDataObj()->getAlbums();
        $item['tpl'] = $this->getTemplate('list.tpl');
        if (!empty($item['list'])) {
            $this->_addImagesGridResources();
        }

        return $item;
    }

    protected function _doView()
    {
        $this->_addViewItem();
        $this->_addImagesItem();
        $this->_postView();
        return $this;
    }

    protected function _prepareViewItem(array &$item)
    {
        $item['backUrl'] = $this->finalUrl(); // @TODO: під питанням чи так правильно
        return parent::_prepareViewItem($item);
    }

    protected function _initDetailsPage(array $item)
    {
        Qs_Navigation::append(['title' => $item['title']]);
        parent::_initDetailsPage($item);
        $this->_doc->setHeader('');
        return $this;
    }

    protected function _addImagesItem()
    {
        if (!($list = $this->_getDataObj()->getAlbumItems())) {
            $this->_do404();
            exit;
        }

        $type = $this->getConfig('type');
        if (!$type) {
            $type = Entity::VIEW_TYPE_LIST;
        }

        $item = [
            'containerId' => 'gallery-items',
            'list'        => $list,
            'config'      => $this->getPhotoConfig()->toArray(),
        ];

        switch ($type) {
            case Entity::VIEW_TYPE_LIST:
                $item['tpl'] = $this->getTemplate('view-images-list.tpl');
                $this->_addItem($item);
                $this->_initImagesListItem();
                break;

            case Entity::VIEW_TYPE_SLIDER:
                $item['tpl'] = $this->getTemplate('view-images-slider.tpl');
                $this->_prepareImages($item['list']);
                $this->_addItem($item, Qs_Doc::ITEM_GROUP_BOTTOM);
                $this->_initImagesSliderItem();
                break;

            default:
                throw new Exception('Unknown gallery type.');
        }

        $this->_doc->addScript('js/app/gallery/view.js');
        $this->_doc->addInitObject('app.gallery.View', [['containerId' => $item['containerId'], 'type' => $type]]);
        if (!empty($item['list'])) {
            $this->_addImagesGridResources();
        }

        return $this;
    }

    protected function _addImagesGridResources()
    {
        $this->_doc->addScript('js/masonry.pkgd.js');
        $this->_doc->addScript('js/imagesloaded.pkgd.js');
        $this->_doc->addScript('js/app/gallery/grid.js');
        $this->_doc->addInitObject('app.gallery.Grid', []);

        return $this;
    }

    protected function _initImagesSliderItem()
    {
        $this->_doc->addStyleSheet('css/modules/gallery.css');

        return $this;
    }

    protected function _initImagesListItem()
    {
        $this->_doc->addStyleSheet('css/modules/gallery.css');
        $this->_doc->addStyleSheet('css/thirdpart/jquery.fancybox.css');

        $this->_doc->addScript('js/jquery.mousewheel.js');
        $this->_doc->addScript('js/jquery.fancybox.js');

        return $this;
    }

    protected function _prepareImages(array &$images)
    {
        $imageConfig = $this->getPhotoConfig('image');

        foreach ($images as &$image) {
            $source = Qs_ImageFs::WEB_PATH . '/' . $image['image'];

            $destination = Qs_ImageFs::getIconName(
                $source,
                $imageConfig->width,
                $imageConfig->height,
                $imageConfig->method
            );
            $destination = Qs_ImageFs::THUMBNAIL_PATH . '/' . $destination;

            if (!file_exists($destination)) {
                $destination = Qs_ImageFs::resize(
                    $source,
                    [
                        'width'     => $imageConfig->width,
                        'height'    => $imageConfig->height,
                        'force'     => false,
                        'method'    => $imageConfig->method,
                        'sizeCheck' => true,
                    ]
                );
            }

            $realWidth = $realHeight = 0;
            if ($destination) {
                $fileInfo = Qs_ImageFs::getInfo($destination);
                $realWidth = $fileInfo['width'];
                $realHeight = $fileInfo['height'];;
            }

            $image['realWidth'] = $realWidth;
            $image['realHeight'] = $realHeight;
        }

        return $this;
    }

    public function getPhotoConfig($field = null, $default = null)
    {
        if (null === $this->_photoConfig) {
            $this->_photoConfig = Qs_Config::get($this->_photoConfigName, Qs_Config::APP_TYPE);
        }
        if (null === $field) {
            return $this->_photoConfig;
        }
        return $this->_photoConfig->get($field, $default);
    }

    public function writeXmlSitemap(App_Sitemap_Xml_Writer $xml)
    {
        return $this->writeDefaultXmlSitemap($xml);
    }

}