<?php

include_once(dirname(__FILE__).'/inc/prepend.php');

// Memcache connection
$memcache = DirXiphOrgMCC::getInstance();

// Get the args
$page_n = array_key_exists('page', $_GET) ? intval($_GET['page']) : 0;
if ($page_n > (MAX_SEARCH_RESULTS / MAX_RESULTS_PER_PAGE))
{
    $page_n = 0;
}
if (array_key_exists('PATH_INFO', $_SERVER))
{
	if (substr($_SERVER['PATH_INFO'], -5) == '.xspf')
	{
	    $output_format = 'xspf';
	    $_SERVER['PATH_INFO'] = substr($_SERVER['PATH_INFO'], 0, -5);
	}
	
	$search_string = preg_replace('|^/([^\s/]+).*$|', '$1', $_SERVER['PATH_INFO']);
	$search_string = substr($search_string, 0, 15);
	$tpl->assign('search_keyword', $search_string);
	$search_string = str_replace(array('+', '-', '*', '<', '>', '~', '"', '(', ')', '&', '|'),
								 array('', '', '', '', '', '', '', '', '', '', '', ''),
								 $search_string);
	$search_string_hash = jenkins_hash_hex($search_string);
	
	// Logging
	try
	{
	    statsLog::keywordsSearched(statsLog::SEARCH_TYPE_GENRE, $search_string);
	}
	catch (SQLException $e)
	{
	    // Do nothing, it's just logging after all...
	}
	
	// Get the data from the Memcache server
	if (($results = $memcache->get(ENVIRONMENT.'_search_genre_'.$search_string_hash)) === false)
	{
		// Database connection
		$db = DirXiphOrgDBC::getInstance();
	
		// Cache miss. Now query the database.
		try
		{
            $query = 'SELECT m.`id` FROM `mountpoint` AS m INNER JOIN (SELECT mt.mountpoint_id FROM `mountpoints_tags` AS mt INNER JOIN `tag` AS t ON mt.`tag_id` = t.`id` WHERE t.`tag_name` = "%s" ORDER BY NULL) AS mt1 ON m.`id` = mt1.`mountpoint_id` ORDER BY m.`listeners` DESC LIMIT %d;';
			$query = sprintf($query, mysql_real_escape_string($search_string), MAX_SEARCH_RESULTS);
			$results = $db->selectQuery($query);
			$res = array();
			while (!$results->endOf())
			{
				$res[] = Mountpoint::retrieveByPk($results->current('id'));
				$results->next();
			}
			$results = $res;
		}
		catch (SQLNoResultException $e)
		{
			$results = array();
		}
	
		// Cache the resultset
		$memcache->set(ENVIRONMENT.'_search_genre_'.$search_string_hash, $results, false, 60);
	}
	
	if ($results !== false && $results !== array())
	{
                $n_results = count($results);
                $results_pages = ceil($n_results / MAX_RESULTS_PER_PAGE);
                if ($page_n > $results_pages)
                {
                    $page_n = 0;
                }
                $pages = array();
                if ($results_pages < PAGES_IN_PAGER)
                {
                    $pages = range(1, $results_pages);
                }
                elseif ($page_n > PAGES_IN_PAGER)
                {
                    $pages = range($page_n + 1 - PAGES_IN_PAGER, $pages_n + 1 + PAGES_IN_PAGER);
                }
                elseif ($page_n + PAGES_IN_PAGER > $results_pages)
                {
                    $pages = range($results_pages - PAGES_IN_PAGER + 1, $results_pages);
                }
                else
                {
                    $pages = range(1, PAGES_IN_PAGER);
                }
                $offset = $page_n * MAX_RESULTS_PER_PAGE;
                $results = array_slice($results, $offset,
                                       MAX_RESULTS_PER_PAGE);
                $tpl->assign_by_ref('results', $results);
                $tpl->assign_by_ref('results_pages', $pages);
                $tpl->assign_by_ref('results_pages_total', $results_pages);
                $tpl->assign('results_page_no', $page_n + 1);
	}
}
else
{
	// Tag cloud
	$tpl->assign('tag_cloud', $memcache->get(ENVIRONMENT.'_tagcloud'));
	$tpl->assign('display_tag_cloud', true);
}

if (empty($output_format) || $output_format != 'xspf')
{
// Header
$tpl->display("head.tpl");

// Display the results
$tpl->assign('servers_total', $memcache->get(ENVIRONMENT.'_servers_total'));
$tpl->assign('servers_mp3', $memcache->get(ENVIRONMENT.'_servers_'.CONTENT_TYPE_MP3));
$tpl->assign('servers_vorbis', $memcache->get(ENVIRONMENT.'_servers_'.CONTENT_TYPE_OGG_VORBIS));
$tpl->assign('tag_cloud', genfile::get(genfile::makeGenfileName('tagcloud')));
$tpl->display('search.tpl');

// Footer
if (ENVIRONMENT != 'prod')
{
	$tpl->assign('generation_time', (microtime(true) - $begin_time) * 1000);
	$tpl->assign('sql_queries', isset($db) ? $db->queries : 0);
	if (isset($db))
	{
		$tpl->assign('sql_debug', $db->log);	
	}
	$tpl->assign('mc_gets', isset($memcache) ? $memcache->gets : 0);
	$tpl->assign('mc_sets', isset($memcache) ? $memcache->sets : 0);
	if (isset($memcache))
	{
		$tpl->assign('mc_debug', $memcache->log);
	}
}
$tpl->assign("/search/by_genre");
$tpl->display('foot.tpl');
}
elseif ($output_format == 'xspf')
{
  header('Content-Type: application/xspf+xml');
  $tpl->assign('xspf_title', 'Search results for '.$search_string);
  $tpl->display('search_results.xspf.tpl');
}

?>