jacobemerick/web

<?

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

final class TagController extends DefaultListController
{

    private static $TITLE_MAIN = "%s Tag | Jacob Emerick's Blog";
    private static $DESCRIPTION_MAIN = "Posts tagged with %s on Jacob Emerick's Blog, a website about Upper Peninsula hiking and web development best practices.";

    private static $TITLE_PAGINATED = "%s - Page %d of %d | Jacob Emerick's Blog";
    private static $DESCRIPTION_PAGINATED = "Page %d of %d with posts tagged with %s on Jacob Emerick's Blog, a website about the hiking and development adventures of a young man.";

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

    private static $LIST_DESCRIPTION = 'Viewing %d - %d of %d posts tagged with %s.';

    private $tag;

    public function __construct()
    {
        $tag = URLDecode::getPiece(2);
        $tag = str_replace('-', ' ', $tag);

        global $container;
        $repository = new Jacobemerick\Web\Domain\Blog\Tag\MysqlTagRepository($container['db_connection_locator']);
        $tag_result = $repository->findTagByTitle($tag);

        if($tag_result === false)
            $this->eject();
        
        $this->tag = $tag_result;
        
        parent::__construct();
    }

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

    protected function get_introduction()
    {
        $tag = ucwords($this->tag['tag']);
        
        if($this->page == 1)
        {
        global $container;
        $repository = new Jacobemerick\Web\Domain\Blog\Introduction\MysqlIntroductionRepository($container['db_connection_locator']);
        $introduction_result = $repository->findByType('tag', $this->tag['tag']);
            
            if($introduction_result !== false)
            {
                $introduction = array();
                $introduction['title'] = $introduction_result['title'];
                $introduction['content'] = $introduction_result['content'];
                $introduction['image'] = $this->get_introduction_image($introduction_result['image']);
                
                return $introduction;
            }
            
            return array(
                'title' => "Viewing posts about {$tag}.");
        }
        
        return array(
            'title' => "{$tag} posts, page {$this->page} of {$this->total_pages}.");
    }

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

    protected function get_list_results()
    {
        global $container;
        $repository = new Jacobemerick\Web\Domain\Blog\Post\MysqlPostRepository($container['db_connection_locator']);
        return $repository->getActivePostsByTag($this->tag['id'], self::$POSTS_PER_PAGE, $this->offset);
    }

    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->tag['tag']);
    }

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

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

    private $total_post_count;
    protected function get_total_post_count()
    {
        if(!isset($this->total_post_count)) {
        global $container;
        $repository = new Jacobemerick\Web\Domain\Blog\Post\MysqlPostRepository($container['db_connection_locator']);
        $this->total_post_count = $repository->getActivePostsCountByTag($this->tag['id']);
    }

        return $this->total_post_count;
    }

}