<?php

namespace api;

include_once "../../global.inc.php";
include_once PATH_DATABASE . "/PisSqlManager.php";
include_once PATH_UTILITTY . "/ArrayManager.php";
require_once PATH_API . "/Api.php";

/**
 * This class provides some spezial PisAPI methods
 * @author stubbfel
 * @since 20.06.2013
 */
class PisApi extends Api {

    /**
     * Route string for the pids paramter
     * @var string
     */
    public static $routeParameterPids = "/pid/:pid+";

    /**
     * Route string for the iNames paramter
     * @var string
     */
    public static $routeParameterINames = "/iname/:iname+";

    /**
     * Keyword for pidList arguments
     * @var string
     */
    public static $keyPidList = "pidList";

    /**
     * Keyword for iNameList arguments
     * @var string
     */
    public static $keyINameList = "iNameList";

    /**
     * max number of pid for each query
     * @var int
     */
    private static $maxPid = 10;

    /**
     * Constructor
     * @param array[assoc] $headers - RequestHeader
     */
    public function __construct($headers = array()) {
        $this->sqlManager = new \database\PisSqlManager();
        parent::__construct($headers);
    }

    /**
     * Default-DeConstructor
     */
    public function __destruct() {
        parent::__destruct();
    }

    /**
     * Method start a pis-query
     * @param array $queryArgs
     * @return query result as xml
     */
    public function sendPisQuery($queryArgs) {
        $pidList = \utiliy\ArrayManager::removeEmptyItmes($queryArgs[self::$keyPidList]);        
        
        if (array_key_exists(self::$keyINameList, $queryArgs)) {
            $iNameList = \utiliy\ArrayManager::removeEmptyItmes($queryArgs[self::$keyINameList]);
        } else {
            $iNameList = array();
        }
        
        if (count($pidList) < self::$maxPid) {
            $result = $this->sqlManager->sendPisQuery($pidList, $iNameList);

            return $this->serialManager->arrayToPis($result);
        }
        return NULL;
    }

}

?>