{Login
Function description:    Logs a user into the visualisation. Checks for correct password and starts idle timer.

Parameter:
    - User: Name of the user to be logged in
    - pwd: password of user
}

IF Debug THEN
LogMessage( "----------> LOGIN <----------" );
ENDIF;


    DIM stempNodeName AS MESSAGE;
    GetNodeName(stempNodeName,131);

{  run only if EUCHNER Login is used }

      LoggedUser=#EuchnerLoginControl10.getUserName();

      IF CCRInterestArea <> "FAILURE" THEN
          LoggedLevel=#EuchnerLoginControl10.getUserLevel(CCRInterestArea);

          { copy level read from euchner key to tag used in inTouch }
          EKS_Level = LoggedLevel;
          { copy level read from euchner key to tag sent to PLC }
          SPS_Level = LoggedLevel;
      ENDIF;



      LoggedArea=CCRInterestArea;
       tempPassword=#EuchnerLoginControl10.getHashedPassword();

{ reset bit before testing }
OperatorFound = 0;

{ check size of operator's list file }
OperatorListSize = InfoFile(m_path_extern + "Visu_lokal\operatorlist.txt",2, RefreshFilterFav);

{ check if logged user's name is included in text file }

DIM Counter AS INTEGER;
DIM Max AS INTEGER;

MAX = OperatorListSize / 50;

FOR Counter = 1 TO Max

OperatorListOffset = 50 * Counter;
IF OperatorListOffset > (OperatorListSize - 100) THEN
     OperatorListOffset = OperatorListSize - 100;
ENDIF;

FileReadMessage (m_path_extern + "Visu_lokal\operatorlist.txt",OperatorListOffset, OperatorListMessage, 100);
StringOpResult = StringInString(OperatorListMessage, LoggedUser, 1,0 );


IF StringOpResult > 0 THEN
    OperatorFound = 1;
    EXIT FOR;

ENDIF;
NEXT;






     IF OperatorFound == 0 THEN
            { write operator name into txt file }
            FileWriteMessage(m_path_extern + "Visu_lokal\operatorlist.txt",-1,LoggedUser + ", 0",1);
  RefreshFilterFav = 1;

            { check size of filter favorites file }
        FilterFavSize = InfoFile("D:\HMI\LogEventFilterFav\LogEventFilters.xml",2, RefreshFilterFav);
{ calculate filter favorities file offset needed to add another operator filter}

           { Trial: findout how many characters should be deleted, that there is no "</Filter_Favorites>" in txt file>

           { 1 trial: read last 19 characters }
            NumOfBytesOffset = 19;
          FileReadMessage ("D:\HMI\LogEventFilterFav\LogEventFilters.xml",FilterFavSize - NumOfBytesOffset,MessageReadFromFile, NumOfBytesOffset );
         IF MessageReadFromFile == "</Filter_Favorites>" THEN
            FilterFavOffset = FilterFavSize - NumOfBytesOffset;

ELSE

    { 2 trial: read last 20 characters }
            NumOfBytesOffset = 20;
 FileReadMessage ("D:\HMI\LogEventFilterFav\LogEventFilters.xml",FilterFavSize - NumOfBytesOffset,MessageReadFromFile, NumOfBytesOffset );
         IF MessageReadFromFile == "</Filter_Favorites>" THEN
            FilterFavOffset = FilterFavSize - NumOfBytesOffset;

ELSE
{ 3 trial: read last 21 characters }
            NumOfBytesOffset = 21;
 FileReadMessage ("D:\HMI\LogEventFilterFav\LogEventFilters.xml",FilterFavSize - NumOfBytesOffset,MessageReadFromFile, NumOfBytesOffset );
         IF MessageReadFromFile == "</Filter_Favorites>" THEN
            FilterFavOffset = FilterFavSize - NumOfBytesOffset;
            ENDIF;

            ENDIF;

            ENDIF;




      RefreshFilterFav = 2;
        { create filter for new operator }
            FilterFavMessage = "<Record><FilterName>" + LoggedUser + "</FilterName><Element><Name>User3</Name><OrigName>";
        { add operator name into filter favorites file - 1 part}
        FileWriteMessage("D:\HMI\LogEventFilterFav\LogEventFilters.xml", FilterFavSize - NumOfBytesOffset, FilterFavMessage, 0);
                        RefreshFilterFav = 3;
                        FilterFavMessage = "User3</OrigName><Operator>Like</Operator><Value>" + LoggedUser + "</Value>";
        { add operator name into filter favorites file - 2 part}
        FileWriteMessage("D:\HMI\LogEventFilterFav\LogEventFilters.xml", -1, FilterFavMessage, 0);
                        RefreshFilterFav = 4;
 FilterFavMessage = "<Parent>0</Parent></Element></Record></Filter_Favorites>";
        { add operator name into filter favorites file - 3 part}
        FileWriteMessage("D:\HMI\LogEventFilterFav\LogEventFilters.xml", -1, FilterFavMessage, 0);
       RefreshFilterFav = 5;
     ENDIF;






     { update status }
     IF LoggedLevel <> 0  THEN
    ANGEMELDET=1;
     ENDIF;


     {set the Logged User for the Funktion "LogToJournal"}
        GBL_PRJ_LoggedUser = LoggedUser;

     {Massage to CCR Data Base  --> LOGIN}
        CALL LogToJournal("I", "jnLoginOK", GBL_PRJ_LoggedUser, "", "", "", "");








IF Debug THEN
LogMessage( "----------> LOGIN - END <----------" );
ENDIF;