jacobemerick/web

<?

Loader::load('controller', 'blog/DefaultListController');
Loader::load('utility', 'Search');

final class SearchController extends DefaultListController
{

    private static $TITLE_MAIN = "%s Search | Jacob Emerick's Blog";
    private static $DESCRIPTION_MAIN = "Posts containing the phrase %s on Jacob Emerick's Blog.";

    private static $TITLE_PAGINATED = "%s Search - Page %d of %d | Jacob Emerick's Blog";
    private static $DESCRIPTION_PAGINATED = "Page %d of %d with posts containing the phrase %s on Jacob Emerick's Blog.";

    private static $KEYWORD_ARRAY = array(
        'hiking',
        'web development',
        'blog',
        'Jacob Emerick');

    private static $LIST_DESCRIPTION = 'Viewing %d - %d of %d posts containing the phrase %s.';
    private static $SEARCH_WEIGHTS = array(
        array(
            'field' => 'title',
            'weight' => 8),
        array(
            'field' => 'body',
            'weight' => 4));

    private $query;

    public function __construct()
    {
        $query = URLDecode::getPiece(2);
        $query = urldecode($query);
        $query = str_replace('-', ' ', $query);
        
        $this->query = $query;
        
        parent::__construct();
    }

    protected function set_head_data()
    {
        parent::set_head_data();
        
        if($this->page == 1)
        {
            $this->set_title(sprintf(self::$TITLE_MAIN, ucwords($this->query)));
            $this->set_description(sprintf(self::$DESCRIPTION_MAIN, ucwords($this->query)));
        }
        else
        {
            $this->set_title(sprintf(self::$TITLE_PAGINATED, ucwords($this->query), $this->page, $this->total_pages));
            $this->set_description(sprintf(self::$DESCRIPTION_PAGINATED, $this->page, $this->total_pages, ucwords($this->query)));
        }
        
        $keyword_array = self::$KEYWORD_ARRAY;
        array_unshift($keyword_array, $this->query);
        $this->set_keywords($keyword_array);
    }

    protected function get_introduction()
    {
        if($this->total_pages > 1)
            return array(
                'title' => "Posts from search '{$this->query}', page {$this->page} of {$this->total_pages}.");
        else if($this->total_pages == 1)
            return array(
                'title' => "Posts from search '{$this->query}'.");
        else
            return array(
                'title' => "Sorry, '{$this->query}' didn't return any posts.");
    }

    protected function get_page_number()
    {
        $page = URLDecode::getPiece(3);
        if(isset($page) && is_numeric($page))
            return $page;
        return 1;
    }

    private $search_result;
    private function get_search_result()
    {
        if(!isset($this->search_result))
        {
        global $container;
        $repository = new Jacobemerick\Web\Domain\Blog\Post\MysqlPostRepository($container['db_connection_locator']);
        $posts = $repository->getActivePosts();
            
            $this->search_result = Search::instance()
                ->setQuery($this->query)
                ->setResult($posts)
                ->setWeight(self::$SEARCH_WEIGHTS)
                ->perform();
        }
        return $this->search_result;
    }

    protected function get_list_results()
    {
        return array_slice($this->get_search_result(), $this->offset, self::$POSTS_PER_PAGE);
    }

    protected function get_list_description()
    {
        $start = $this->offset + 1;
        $end = min($this->offset + self::$POSTS_PER_PAGE, $this->get_total_post_count());
        
        return sprintf(self::$LIST_DESCRIPTION, $start, $end, $this->get_total_post_count(), $this->query);
    }

    protected function get_list_next_link()
    {
        if($this->page == 1)
            return;
        if($this->page == 2)
            return Content::instance('URLSafe', "/search/{$this->query}/")->activate();
        return Content::instance('URLSafe', "/search/{$this->query}/" . ($this->page - 1) . '/')->activate();
    }

    protected function get_list_prev_link()
    {
        if(($this->page * self::$POSTS_PER_PAGE) >= $this->get_total_post_count())
            return;
        return Content::instance('URLSafe', "/search/{$this->query}/" . ($this->page + 1) . '/')->activate();
    }

    private $total_post_count;
    protected function get_total_post_count()
    {
        if(!isset($this->total_post_count))
            $this->total_post_count = count($this->get_search_result());
        return $this->total_post_count;
    }

}