<?

  class conferenceManager {
    public static function startMeeting($modulo,$elemento,$type = "general",$sub, $redirect = true) {
      $provider = settingsManager::getValue("provider");
      if (!empty($provider)) {
        if ($provider == "zoom") {
          $client = new zoomMtg;
        } else {
          $client = new goToMtg;
        }
        $meetingDBRecord = $client->getMeetingFromDB($modulo,$elemento,$sub,$type);
        if (!empty($meetingDBRecord)) {
          $meetingRecord = json_decode($meetingDBRecord["response"],true);
          if ($provider == "zoom") {
            $status = $client->getMeetingDetails($meetingRecord["id"]);
            if (empty($status["status"]) || $status["status"] == "finished") {
              unset($meetingRecord);
            }
          } else {
            $host = $client->getHostFromID($meetingDBRecord["host"]);
            $status = $client->getMeetingDetails($meetingRecord["meetingid"],$_SESSION["ente"]->codice,$host["codice"]);
           if (!empty($status["status"]) && $status["status"] == "INACTIVE") { $url = $client->getHostURL($meetingDBRecord["codice"]); }
           if (empty($url)) { unset($meetingRecord); }
          }
        }
        if (empty($meetingRecord)) {
          $meetingRecord = $client->createMeeting($modulo,$elemento,$sub,$type);
          $meetingDBRecord = $client->getMeetingFromDB($modulo,$elemento,$sub,$type);
        }
        if (!empty($meetingRecord)) {
          if ($provider == "zoom") {
            if (!empty($meetingRecord["id"])) {
              if ($redirect) {
                header("location: {$meetingRecord["start_url"]}");
                die();
              } else {
                return $meetingRecord["start_url"];
              }
            }
          } else {
            if (!empty($meetingRecord["meetingid"])) {
              if (empty($url)) { 
                $url = $client->getHostURL($meetingDBRecord["codice"]); 
              }
              if ($redirect) {
                if (!empty($url)) {
                  header("location: {$url}");
                  die();
                }
              } else {
                return $url;
              }
            }
          }
        }
      } 
    }

    public static function getMeetingsFromDB($modulo,$elemento,$type,$sub) {
      global $pdo;
      $provider = settingsManager::getValue("provider");
      if (!empty($provider)) {
        $bind = [":sezione"=>$modulo,":codice_elemento"=>$elemento,":sub_elemento"=>$sub,":contesto"=>$type,":ente"=>$_SESSION["ente"]->codice,":provider"=>$provider];
        $sql = "SELECT * FROM b_conference 
                WHERE provider = :provider AND codice_ente = :ente AND sezione = :sezione AND codice_elemento = :codice_elemento 
                AND sub_elemento = :sub_elemento AND contesto = :contesto 
                ORDER BY timestamp DESC";
        $meetings = $pdo->go($sql,$bind);
       if ($meetings->rowCount() > 0) { return $meetings->fetchAll(PDO::FETCH_ASSOC); }
      }
      return false;
    }

    public static function printLog($id) {
      $provider = settingsManager::getValue("provider");
      if (!empty($provider)) {
        if ($provider == "zoom") {
          $client = new zoomMtg;
        } else {
          $client = new goToMtg;
        }
        $client->printLog($id);
      }
    }

    public static function checkStatus($modulo,$elemento,$type = "general",$sub) {
      $provider = settingsManager::getValue("provider");
      $url = "";
      $codice = "";
      if ($provider == "zoom") {
        $client = new zoomMtg;
      } else {
        $client = new goToMtg;
      }
      $meetingDBRecord = $client->getMeetingFromDB($modulo,$elemento,$sub,$type);
      $started = false;
      /*
        $conferenceStatus
        0 - NON INIZIATO
        1 - INIZIATO
        2 - TERMINATO
      */
      $conferenceStatus = 0;
      if (!empty($meetingDBRecord)) {
        $codice = $meetingDBRecord["codice"];
        $meetingRecord = json_decode($meetingDBRecord["response"],true);
        if ($provider == "zoom") {
          $status = $client->getMeetingDetails($meetingRecord["id"]);
          if (empty($status)) {
            $old = $client->getPastMeeting($meetingRecord["uuid"]);
          } else {
            if ($status["status"] != "finished") {
              $conferenceStatus = 1;
              $url = $meetingRecord["join_url"];
            } else {
              $conferenceStatus = 2;
            }
          }
        } else {
          $host = $client->getHostFromID($meetingDBRecord["host"]);
          $status = $client->getMeetingDetails($meetingRecord["meetingid"],$_SESSION["azienda"]->codice,$host["codice"]);
          if (!empty($status["status"]) && $status["status"] == "ACTIVE") {
            $conferenceStatus = 1;
            $url = $meetingRecord["joinURL"];
          } else if (empty($status)) {
            $conferenceStatus = 2;
          }
        }
      }
      return ["esito"=>$conferenceStatus,"url"=>$url,"codice"=>$codice];    
    }

    public static function printPingScript($codice) {
      if (!empty($codice)) {
        /*
          DISABILITATO - LA FUNZIONE DEL PING NON GARANTISCE UN'IDENTIFICAZIONE AFFIDABILE DEGLI UTENTI COLLEGATI
        ?>
        <script>
          setInterval(function() { $.ajax({url:"/conference/ping.php?id=<?= $codice ?>"}) }, 10000);
        </script>
        <?
        */
      }
    }
  }
?>