#!/usr/bin/perl -w
# (c) 2012 Joerg Mann / 1&1 Internet AG
#
# $Id: a4e4e506b549c83b43a7e94b7f9fc475fe977e37 $
# last update at now ...

# TODO:
# check todo-global delete-logfiles
# check nachtaegliches join (log-v-4 ...), resize, delay, statusvalues
# check monitoring -> redesign statuscodes


###
use warnings;
use strict;
use English;
use Getopt::Long;
use Term::ANSIColor;
use Date::Language;
use POSIX qw(strftime);
use File::Basename;

### defaults
my $version        = "0.071";
my $alife_timeout  = "30";	# sec for remote-nodes timeout
my $is_tty 	   = 0;
my $mars_dir       = '/mars';
my $himself        = `uname -n` or die "cannot determine my network node name\n";
my $clearscreen	   = `clear`;
my $StatusCode	   = 'UpToDate';
my @StatusText     = ();
my $NodeStatusCode = 'UpToDate';
my @NodeStatusText = ();
chomp $himself;

my $Color_blue     = 'yellow';
my $Color_green	   = 'green';

### ARGV
# Optionen in Hash-Ref parsen
my $params = {};
GetOptions( $params, 'help', 'h', 'version', 'v', 'monitor', 'role', 'cstate', 'dstate', 'resource=s', 'system', 'interval=i', 'history', 'debug' );

### small help
sub display_help {
    my $HelpText = shift;
    print "$HelpText\n\n" if ($HelpText);
    print "Usage: mars-status [--help]\n";
    print "Usage: mars-status [--version]\n";
    print "Usage: mars-status (without specification of parameters, an abstract of all the informations spent)\n";
    print "Usage: mars-status [--resource <RESNAME>] [--interval <seconds>] | [--history] | [--debug ] | [--system]\n";
    print "Usage: mars-status [--resource <RESNAME>] --monitor \n";
    print "Usage: mars-status --resource <RESNAME> [--role | --cstate | --dstate]\n";
    print "       --resource : limits the display to the specified resource\n";
    print "       --interval : refreshes the display every second xxx\n";
    print "       --history  : shows information about the log files, version numbers and their status\n";
    print "       --system   : display mars-system informations\n";
    print "       --monitor  : indicator to use for monitoring on all state (by local node only !)\n";
    print "       --role|--cstate|--dstate single state on lokal node\n";
    print "       --debug    : additional display debug messages\n\n";
    print "Usage small include rotate  : mars-status --interval 2\n";
    print "Usage monitoring            : mars-status --monitor\n";
    print "Usage monitoring drbd-linke : mars-status --cstate (or --dstate or --role)\n";
    print "Usage full, include debug   : mars-status --system --history --debug\n\n";
    print "Advanced information are also available here: http://http://wiki.intranet.1and1.com/ ->ProjektTEC1603 ->TECITO.1735 -> MARS\n";
    exit;
}

if($params->{help} || $params->{h} ) {
    display_help;
}

# Farbe zuruecksetzen
$SIG{INT} = sub {
    print color 'reset';
    print $clearscreen;
    exit;	
};

#########################################################################################
### figure out TTY
my $tty = readlink '/dev/stdout';
while ( my $temp = readlink $tty ) {
    $tty = $temp;
}
if ( $tty =~ /^\/dev\/pts\// ) {
    $is_tty = 1;
} elsif ( $tty =~ /^\/dev\/tty/ ) {
    $is_tty = 1;
}



#########################################################################################
### print color
sub print_screen {
    my $Text  = shift;
    my $Color = shift;
    my $Level = shift;

    ### default
    if ( !$params->{'monitor'} && !$Level ){
        $Color = 'FAINT' if (!$Color);
        print color "$Color" if ( $is_tty );
        print "$Text";
        print color 'reset' if ( $is_tty );

    ### monitor
    } elsif ( $params->{'monitor'} && $Level ) {
        if ( $params->{'role'} && $Level eq 'Rmonitor' ) {
            print "$Text\n";
            exit;
        } elsif ( $params->{'dstate'} && $Level eq 'Dmonitor' ) {
            print "$Text\n";
            exit;
        } elsif ( $params->{'cstate'} && $Level eq 'Cmonitor' ) {
            print "$Text\n";
            exit;
        } elsif ( !$params->{'role'} &&  !$params->{'dstate'} &&  !$params->{'cstate'}) {
            print "$Text\n";
        }
    }
}


#########################################################################################
### read link
sub check_link {
    my $dir = shift;
    my $result = readlink $dir;
    if ( !$result ) {
	return 0;
    } else {
	return $result;
    }
}


#########################################################################################
### read links
sub convert_link {
    my $link = shift;
    $link    = check_link "$link";
    if (( !$link ) || ( $link eq 0 )) {
        print_screen "off", 'red';
    } else {
	print_screen "on", "$Color_green";
    }
    return $link;
}


#########################################################################################
### StatusCode
sub monitoring {
    my $Code = shift;
    my $Text = shift;
    # UpToDate   - eishokey
    # UpDateIng  - worker
    # OutDate    - replaying
    # InvaliDate - syncing
    # SwitchOff  - SwitchOff
    # Failed     - system, network, uae.
    # unknown    - not joined
    
    $Code = "UpToDate" if ( $Code eq '' );

    # global
    if ( $StatusCode ne 'UpToDate') {
        $StatusCode  = $Code;
    }

    # local-node
    if ( $Code ne 'UpToDate' ) {
        $NodeStatusCode  = $Code;
    }

    push @StatusText, $Text;
    push @NodeStatusText, $Text; 

}


#########################################################################################
### sub display resource-partner
sub display_partner {
    my %p 		= @_;
    my $PRes  		= $p{ressource};
    my $PName 		= $p{nodename};
    my $PSize 		= $p{ressource_size};
    my $ref_ResPartner  = $p{res_partner};
    my $ref_AULogfile	= $p{res_AULogfile};
    my $PStatus  	= check_link "$mars_dir/$PRes/primary";
    my $PDevice  	= check_link "$mars_dir/$PRes/device-$PName";  
    my $Ljoined  	= check_link "$mars_dir/$PRes/device-$himself";
    
    ##########################################################################
    ### check status
    if ( $PStatus eq $PName ) {   
        print_screen "Primary", "$Color_blue";
        print_screen "Primary  [$PRes on $PName]",'', 'Rmonitor';
        monitoring '', "joined";        
    } else {
        if ( $PDevice eq 0 ) {
            print_screen "not joined",'red';
            print_screen "not joined\n",'', 'Rmonitor';
            print_screen "   -> Resource is not joined to this node\n", 'red'; 
            monitoring   "unknown", "not joined";        
            return; 
        } else {
            print_screen "Secondary", "$Color_blue";
            print_screen "Secondary [$PRes on $PName]",'', 'Rmonitor';
            monitoring   "", "joined";        
        }
    }


    ##########################################################################
    ### check alive
    my @PAlive = lstat("$mars_dir/alive-$PName");
    if ( !$PAlive[9] ) { $PAlive[9] = 0 };
    my $PAlive =  time()- $PAlive[9] - $alife_timeout;
    print_screen ", System", '';
    if ( $PAlive > 1  ) {
        print_screen " unknown (last message before $PAlive sec) !!!\n", 'red';
        monitoring   "Failed", "not alive"
    } else {
        print_screen " alive\n", "$Color_green"; 
        monitoring   "", "alive";
    }


    ##########################################################################
    ### check device
    print_screen "\tDevices : Disk-Device ".check_link "$mars_dir/$PRes/data-$PName";
    print_screen ", used as Mars-Device /dev/mars/$PDevice";
    my $ASize = check_link "$mars_dir/$PRes/actsize-$PName";
    if ( $PSize eq $ASize) {
        print_screen ", not resized";
    } else {
        print_screen "\n\t\t---> HINT: resizing used ($PSize != $ASize)",'red';
    }


    ##########################################################################
    ### check mountpint
    if ( $himself eq $PName ) {
       my $PUDevice = "/dev/mars/$PDevice";
       if ( stat( $PUDevice) ) {
           open my $fh, '<', '/proc/mounts' or die $!;
           $PUDevice = ( grep { /^$PUDevice / } <$fh> )[0];
           if ( $PUDevice ) {
               $PUDevice = ( split / /, $PUDevice )[1];
               print_screen " and mountet as $PUDevice\n", "$Color_blue";
           } else {
               print_screen "\n\t\t---> TODO: enable to mount\n", "$Color_green";
           }
       } else {
           print_screen "\n\t\t---> HINT: unable to mount, Device is Secondary or mars is starting\n", "$Color_blue";
       }
    } else {
       print_screen "\n";
    }
    $$ref_ResPartner++;


    ##########################################################################
    ### check sync
    ### sync - status
    my $PSyncsize = check_link "$mars_dir/$PRes/syncstatus-$PName";
    my $SStatus   = sprintf("%.2f", ($PSyncsize / $PSize * 100));
    print_screen (sprintf "\tSync    : %s bytes (%.3fTB) synced = ", $PSyncsize, ( $PSyncsize/1024/1024/1024/1024));

    ### sync - speed
    my $SSpeed    = check_link "$mars_dir/$PRes/actual-$PName/sync_rate";
    $SSpeed       = sprintf ("%.2f", $SSpeed / 1024 / 1024);
    if ( $SSpeed eq "0.00" ) {
        $SSpeed = "%";
    } else {
        $SSpeed = "%, by $SSpeed mb/s";
    }

    ### sync - results
    if ( $SStatus < 100) {
        print_screen "$SStatus$SSpeed\n";
        print_screen "\t\t---> WORK: Sync in progress = ($SStatus% < 100.00%)\n", 'red';
        monitoring   "InvaliDate", "not in sync ($SStatus%)";
    } else {
        print_screen "$SStatus$SSpeed\n", "$Color_green";
        monitoring   "", "synced";
    }


    ##########################################################################
    ### TODO: work by resize ...


    ##########################################################################
    ### check logfile
    ### logfile - status
    my @PLogFile  = split (',', check_link "$mars_dir/$PRes/replay-$PName" );
    my @PLogLink  = split ("-", $PLogFile[0]);
    ### TODO: kein Logfile vorhanden ... mmh.
    my $PLogName  = "$PLogLink[0]-$PLogLink[1]";
    my $PLogSize  = -s "$mars_dir/$PRes/$PLogFile[0]";
    if ( !$PLogFile[1] ) { 
        $PLogFile[1] = 0; $PLogFile[2] = 0; 
    }
    $PLogSize    = 0.0001 if (( !$PLogSize ) || ( $PLogSize eq 0 ));
    my $LogSpeed = check_link "$mars_dir/$PRes/actual-$PName/file_rate";
    $LogSpeed    = sprintf ("%.2f", $LogSpeed / 1024 / 1024);

    ### TODO:
    ### logfile - delay

    ### logfile - results
    print_screen (sprintf "\tLogfile : %s bytes (%.3fGB) in ", $PLogSize, ( $PLogSize/1024/1024/1024 ));
    print_screen "$PLogName", "$Color_green";
    print_screen " active";
    print_screen ", received with $LogSpeed mb/s" if ( $LogSpeed ne "0.00" );
    print_screen "\n";
    if ( $Ljoined eq "0" || $PLogSize eq "0.0001" ) {
        print_screen "\t\t---> WORK: Logfile empty = (Size: $PLogSize)\n", 'red';
    }
    if ( ( $ref_AULogfile ) && !($PLogName eq $ref_AULogfile) ) {
        print_screen "\t\t---> HINT: Logfile Version not actual = ($PLogName ! $ref_AULogfile)\n", 'red';
    }
	

    ##########################################################################
    ### check replay ...
    ### replay - status
    my $RStatus = sprintf("%.2f", ( $PLogFile[1] / $PLogSize * 100));
    $RStatus    = 0      if ( $Ljoined eq "0" || $PLogSize eq "1" ); 
    $RStatus    = 99.99  if ((  $PLogFile[1] ne $PLogSize ) && ( $RStatus eq "100.00" ));
    print_screen sprintf ("\tReplayed: %s bytes (%.3fGB) now replayed, Todo %d (%.3fGB) = ", 
        $PLogFile[1], ( $PLogFile[1]/1024/1024/1024 ), $PLogFile[2], ( $PLogFile[2]/1024/1024/1024 ));
        
    ### replay - speed
    my $RSpeed  = check_link "$mars_dir/$PRes/actual-$PName/replay_rate";
    $RSpeed     = sprintf ("%.2f", $RSpeed / 1024 / 1024);
    if ( $RSpeed eq "0.00" ) {
        $RSpeed = "%";
    } else {
        $RSpeed = "%, by $RSpeed mb/s";
    }

    ### replay - results
    if (( $RStatus < 1 ) && ( $PLogSize != 0.0001 )) {
        print_screen "$RStatus$RSpeed\n";
        print_screen "\t\t---> HINT: Replay not started, Logfile inactive = (Size: $PLogSize)\n", 'red';
        monitoring "OutDate", "replay stopped";

    } elsif (( $RStatus < 100 ) && ( $PLogSize != 0.0001 )) {
        print_screen "$RStatus$RSpeed\n";
        print_screen "\t\t---> WORK: Replay in progress = ($RStatus% < 100.00%)\n", 'red';
        monitoring "UpDateIng", "replay running1";

    } elsif ( $PLogFile[2] > 0 ) {
        $RStatus = sprintf("%.2f", ($PLogFile[1]-$PLogFile[2])/$PLogFile[1] * 100);
        print_screen "$RStatus$RSpeed\n", 'red';
        monitoring "UpDateIng", "replay running2";

    } elsif ( $PLogSize = 0.0001 ) {
        $RStatus = "100.00";
        print_screen "$RStatus$RSpeed\n", "$Color_green";
        monitoring '', "replay wait";

    } else {
        print_screen "$RStatus% $RSpeed\n", "$Color_green";
        monitoring '', "replaying";
    }

   ### replay - hints
   if ($PLogFile[2] != 0) {
       print_screen "\t\t---> HINT: Replay-Todo is actualy $PLogFile[2], ", "$Color_blue";
       if ( $PLogFile[2] < 0 ) {
           print_screen "replaying backwards ??? Check this !!!\n", 'red';
       } elsif ( $PLogFile[2] > 0 ) {
           print_screen "mars it's working ...\n";
       } else {
           print_screen "replaying working unknown ... Check this !!!\n", 'red';
       }
    }


    ##########################################################################
    ### check actual
    my $ActStatus  = check_link "$mars_dir/$PRes/actual-$PName/is-primary";
    if ( $ActStatus eq 1 ) {
        print_screen "\tActual  : Status=Primary, used Device="; 
        convert_link "$mars_dir/$PRes/actual-$PName/device-$PDevice";
        print_screen "\n";
    } else {
        print_screen "\tActual  : Status=Secondary, Syncstatus="; 
        convert_link "$mars_dir/$PRes/actual-$PName/copy-syncstatus-$PName";
        print_screen ", Logfileupdate="; 
        convert_link "$mars_dir/$PRes/actual-$PName/logfile-update";
        print_screen "\n";
    }

    ##########################################################################
    ### check switches
    my $SWStatus;
    print_screen "\tSwitches: Attach="; 
    if ( readlink "$mars_dir/$PRes/todo-$PName/attach" eq 1 ) {
        print_screen "on", "$Color_green";
        monitoring   "", "attached";
    } else {
        print_screen "off", 'red';
        monitoring   "SwitchOff", "attach off";
    }
    print_screen " [masked:" if ( $ActStatus eq 1 );
    print_screen " Connect="; 
    if ( readlink "$mars_dir/$PRes/todo-$PName/connect" eq 1 ) {
        print_screen "on", "$Color_green";
        monitoring   "", "connected";
    } else {
        print_screen "off", 'red';
        monitoring   "SwitchOff", "connect off";
    }
    print_screen " Sync=";
    if ( readlink "$mars_dir/$PRes/todo-$PName/sync" eq 1 ) {
        print_screen "on", "$Color_green";
        monitoring   "", "synced";
    } else {
        print_screen "off", 'red';
        monitoring   "SwitchOff", "sync off";
    }
    print_screen " AllowReplay=" ;
    if ( readlink "$mars_dir/$PRes/todo-$PName/allow-replay" eq 1 ) {
        print_screen "on", "$Color_green";
        monitoring   "", "replayed";
    } else {
        print_screen "off", 'red';
        monitoring   "SwitchOff", "replay off";
    }
    print_screen "]" if ( $ActStatus eq 1 );
    print_screen "\n";


    ##########################################################################
    ### node status
    my $NodeStatusText = '';
    foreach (@NodeStatusText) {
          $NodeStatusText = "$NodeStatusText($_)";
    }
    ### normal-modus
    print_screen "\tStatus  : $NodeStatusCode = $NodeStatusText\n", '';
    ### monitor-modus
    print_screen "$NodeStatusCode [$NodeStatusText]", '', 'Dmonitor';
    if ( $NodeStatusCode eq 'SwitchOff' ) {
        print_screen "Disconnect [$PRes on $PName]", '', 'Cmonitor';
    } else {
        print_screen "Connect [$PRes on $PName]", '', 'Cmonitor';
    }    
    ### reset values
    $NodeStatusCode = 'UpToDate';
    @NodeStatusText = ();

    return $PLogName;
}


#########################################################################################
### check ressources
sub check_ressource {
    opendir my $dirhandle, $mars_dir or die "Cannot open $mars_dir: $!";
    my @resources = grep { /^res/ && -d "$mars_dir/$_" } readdir $dirhandle;
    if ( !@resources ) {
        print_screen "---> HINT: no resources found\n", 'red';
        next;
    }
	
    ### read resources
    foreach my $res (@resources) {
        my $ResPartner  = 0;
        my $res_name    = $res;
        $res_name       =~ s/^resource-//;
        if ( $params->{'resource'} ) {
            if (!( $params->{'resource'} eq $res_name)) {
                next;
            }
        }
        my $res_size    = check_link "$mars_dir/$res/size";
        if ( $res_size eq 0 ) { $res_size = 1 };
        my $res_tbsize  = ( $res_size) / 1024 / 1024 /1024 / 1024;
        my $res_master  = check_link "$mars_dir/$res/primary";
        if ( $res_master eq 0 ) { $res_master = "unknown" };
        #print_screen sprintf("-> check resource %s, with %d bytes (%.3fTB), Primary Node is %s\n", $res_name, $res_size, $res_tbsize, $res_master), 'bold';
        print_screen sprintf("-> check resource %s, with %.3fTB, Primary Node is %s\n", $res_name, $res_tbsize, $res_master), 'bold';
        
        ### him self
        print_screen "   -> local Node ($himself) as ",'bold';
        my $ActualUsedLogfile = display_partner(
            ressource		=> $res,
            nodename		=> $himself,
            ressource_size	=> $res_size,
            res_partner		=> \$ResPartner,
            res_AULogfile   	=> "",
        );
        # end him self


        ### joined (und nicht monitor)...
        if (( $ResPartner eq 1 ) && ( !$params->{'monitor'} )) {
            ### partners
            opendir my $server_dh, "$mars_dir/$res" or die "Cannot open $mars_dir/$res: $!";
            my @servers = grep { /^data/ && readlink "$mars_dir/$res/$_" } readdir $server_dh;
            @servers    = sort (@servers);
            foreach my $partner (@servers) {
                $partner  =~ s/^data-//;
                if ( $partner eq $himself ) { next; }
                print_screen "   -> remote Node ($partner) as ", 'bold';
                display_partner(
                    ressource		=> $res,
                    nodename		=> $partner,
                    ressource_size	=> $res_size,
                    res_partner		=> \$ResPartner,
                    res_AULogfile   	=> $ActualUsedLogfile,
                    );
            }
        } # end joined

	
        ### modus
        if ( $ResPartner eq 0 ) { 
            print_screen "   -> modus for $res_name is remote ($ResPartner nodes)\n",'bold'; 
        } elsif ( $ResPartner eq 1 ) { 
            print_screen "   -> modus for $res_name is standalone ($ResPartner node)\n",'bold'; 
        } else {
            print_screen "   -> modus for $res_name is clustered ($ResPartner nodes)\n ",'bold'; 
        }
	
        
        ### resources history
        if ( $params->{'history'} ) {
            check_logfile( $res, $ResPartner );
        }


        ### check resources debug
        if ($params->{'debug'}) {
            print_screen "   -> $res-Debug:\n", "$Color_blue"; 
            my $debug_res;
            ### TODO: small hack, read 3 files ...
            $debug_res = check_debugfile("$res", "2.warn");  print_screen "$debug_res" if ( $debug_res );
            $debug_res = check_debugfile("$res", "3.error"); print_screen "$debug_res" if ( $debug_res );
            $debug_res = check_debugfile("$res", "4.fatal"); print_screen "$debug_res" if ( $debug_res );
        }

    } # end foreach

}
#########################################################################################
###
sub check_logfile {
    my $LResource 	= shift;
    my $LPartner  	= shift;
    my $oldEqual 	= 0;
    my $LogFailed	= 0;
    my $LogCount	= 0;
    my $LogCountSum	= 0;
    my $LogCountNow	= 1;
    my @logfile 	= <$mars_dir/$LResource/log*>;
    ### mal fix zaehlen ...
    foreach (@logfile) {
        $LogCountSum++;
    }

    print_screen "   -> History Replay/Status\n", "$Color_blue";
    ### search all logfiles
    foreach my $logfile (@logfile) {
        my $LVersion    = $logfile;
        $LVersion       =~ s/^.*log-([0-9]+)-.*$/$1/;
        my $LogStatus   = check_link "$logfile";
        my $allEqual    = 1;	### logfiles gleich
        my $OldCheck;		### checksum from versionfile
        my $OldSize;		### size from versionfile
        if ( $LogStatus eq 0 ) { 
            ### found logfile
            my $LogSize = -s "$logfile";
            if ( !$LogSize ) { $LogSize=0; }
            ### logfile stat-values
            my @LogStat  = stat ( $logfile );
            $LogStat[10] = gmtime($LogStat[10]);
            ### quickfix ...
            if ($LogStat[9] > $LogStat[8]) {
                $LogStat[9] = $LogStat[9] - $LogStat[8];
            } else {
                $LogStat[9] = $LogStat[8] - $LogStat[9];
            }
            print_screen (sprintf "\tLogfile Version: $LVersion Size: $LogSize bytes (%.3fGB) from %s, include hypothetically %s sec\n", 
                ($LogSize /1024/1024/1024),  $LogStat[10], $LogStat[9]);


            ### search all logfile version 
            my @LVersion = <$mars_dir/$LResource/version-$LVersion*>;
            foreach my $LVersion (@LVersion) {
                ### search version
                my @LogDetail  = split (',', check_link "$LVersion" );
                my $LogServer  = $LVersion;
                ### search size of logfile
                my $ActLogSize = $LogSize -  $LogDetail[2];
                ### search name of source
                $LogServer     =~ s/.*[0-9]-//;
                $LogCount++;
                ### output
                print_screen (sprintf "\t\tSource: $LogServer \tCheck: $LogDetail[0] \tTodo: %.3fGB \tReplayPosition: $LogDetail[2]\n", $ActLogSize/1024/1024/1024);
                
                ### new versionfile
                if ( !defined $OldCheck ) {
                      $OldCheck  = $LogDetail[0];
                      $OldSize   = $LogDetail[2];
                      $LogFailed = 0;
                      $allEqual  = 1; 

                ### checksum different
                } elsif (  ($LogDetail[0] ne $OldCheck) and ( $LogDetail[2] eq $OldSize ) and ( $LogDetail[2] ne 0) ) {
                      print_screen "\t\t---> TODO: Logfiles has not equal Checksums and same size, check for SPLIT-BRAIN\n",'red';
                      $LogFailed = 1;
                      $allEqual  = 0;

                ### value different
                } elsif ( ($LogDetail[0] ne $OldCheck ) or ( $LogDetail[2] ne $OldSize ) ) { 
                      $LogFailed = 1;
                      $allEqual  = 0;

                ### eishokey
                } else {
                      $LogFailed = 0;
                      $allEqual  = 1;
                }

            } # end foreach

            if ( $allEqual eq 1 ) {
                $oldEqual = 1;
            } else {
                $oldEqual = 0;
            }
           

            ### check Count Logfiles
            if ( !($LogCount eq $LPartner) ) {
                print_screen "\t\t---> TODO: Count of Logfiles different = (have:$LPartner found:$LogCount)\n", 'red';
                $LogFailed = 1;
                $oldEqual = 0;

            } elsif ( `ls -l $mars_dir/$LResource/replay-* | grep $LVersion` ) {
                print_screen "\t\t---> WORK: Logfiles are actual and used, Replay in progess...\n", 'red';
 
            } elsif ( $LogFailed eq 1 )  { 
                print_screen "\t\t---> WORK: Logfiles has not equal Checksums and different size, Reception in progress ...\n", 'red';

            } elsif ( $LogCountSum eq $LogCountNow ) {
                print_screen "\t\t---> WORK: Logfiles are actual and unused(1).\n", "$Color_green";

            } elsif (( $oldEqual eq 1 ) && ( $OldSize eq 0 )) {
                print_screen "\t\t---> WORK: Logfiles are actual and unused(2).\n", "$Color_green";

            } elsif ( $oldEqual eq 1 ) { 
                print_screen "\t\t---> WORK: Logfiles has all equal Sizes and Checksums, can be deleted ...\n", "$Color_green";

            } else {
                print_screen "\t\t---> TODO: Logfiles has same other errors - Please check History of Logfiles\n",'red';
            }

            ### check delete infos
            $logfile =~ m|/log-(.*)$|;
            my $DelLogfile = "log-$1";
            my @DeleteFiles = <$mars_dir/todo-global/delete-*>;
            foreach my $DeleteFiles (@DeleteFiles) {
                if (( !$DeleteFiles ) ||    ( !(readlink $DeleteFiles) )) {
                    $DeleteFiles = "n/a";
                } else {
                    $DeleteFiles = basename (readlink $DeleteFiles);
                }
                if ( $DeleteFiles eq $DelLogfile ) {
                    print_screen "\t\t---> HINT: LogFile ist marked for delete ($DeleteFiles).\n", "$Color_green";
                }
            }
            
            $LogCount=0;

        } # end logstatus
        $LogCountNow++;

    } # end foreach
}


#########################################################################################
### diskfull
sub check_disk_is_full {
    my @diskfull = glob("$mars_dir/rest-space-*");
    my $diskfull_mars = "";
    print_screen "-> Diskspace on Cluster:", 'bold';
    if ( @diskfull ) { 
        foreach ( @diskfull ) {
            my $diskfull_space     = check_link "$_";                        
            my $diskfull_system = $_;                
            $diskfull_system    =~ s!/mars/rest-space-!!;
            if ( $diskfull_space < 1 ) {
                $diskfull_space = sprintf ("%.2f", $diskfull_space / 1024 );
                if ( $diskfull_system eq $himself ) {
                    print_screen "\n\t-> TODO: Local Partition $mars_dir full ($diskfull_space kb Limit) !!! mars is stopping !!!\n\n", "red";
                    $diskfull_mars = "$diskfull_mars,$diskfull_system";
                    monitoring 'Failed', 'System: Mars-Disk full, MARS stopping';
                } else {
                    print_screen "\n\t-> TODO: Remotesystem $diskfull_system have mars-disk full ($diskfull_space kb Limit) !!!\n\n", "red";
                    $diskfull_mars = "$diskfull_mars,$diskfull_system";
                    monitoring 'Failed', 'System: Remote-Mars-Disk full';
                }
            }
       }
    }
    ### TODO: /0
    if ( !$diskfull_mars ) {
        print_screen " ok\n", "$Color_green";
    }
}

#########################################################################################
### check debug-files
sub check_debugfile {
    ### TODO: Fix Level / diaplying
    my $debug_dir   = shift;
    my $debug_level = shift;
    my $debug_file  = "$mars_dir/$debug_dir/$debug_level.status";
    if ( open  (MARS_DEBUG, "< $debug_file") ) {
        my $mars_debug = "";
        while ( <MARS_DEBUG> ) {
            if ( m/^(\d+\.\d+)/ ) {
                s/^(\d+\.\d+)/strftime("%a %b %e %H:%M:%S %Y:", localtime($1))/e;
            } else {
                $_ = localtime(0) . ': ' . $_;
            }
            s/MARS_DEBUG\s+//;
            $mars_debug = "$mars_debug\t$_";
        }
        close MARS_DEBUG;
        return "$mars_debug"  if ( $mars_debug ne "");
    } 
}       

#########################################################################################
### info version
sub info_version {
    ### module
    my %mars_info;
    open ( my $lsmod_handle,'-|','lsmod | grep mars' ) || die "blub ... $!";
    if (!<$lsmod_handle>) {
        print_screen "Module Mars not running\n",'red';
        sleep(10);
        next;
    }
    open ( my $modinfo_handle, '-|', 'modinfo mars' ) || die "cannot run modinfo mars: $!";
    while ( my $line = <$modinfo_handle> ) {
        chomp $line;
        my ( $key, $value) = split /: +/, $line;
        if ( $value) {
            $mars_info{$key} = $value;
        }
    }
    if ( $mars_info{author} eq "") {
        print_screen "Module Mars not running\n",'red';
        next;
    }
    
    ### status
    print_screen "MARS Status - $himself, $version", "$Color_blue";
    if ( $params->{'resource'}  ) { print_screen ", Ressource: $params->{'resource'}", "$Color_blue"; }
    print_screen "\n";
    
    ### marsadm
    my $MAVersion = qx"marsadm version";
    print_screen "MARS Admin  - $MAVersion", "$Color_blue";
    
    ### module
    print_screen "MARS Module - $mars_info{version}\n", "$Color_blue";

    ### kernel
    my $KVersion = '/proc/version';
    open my $Kfh, '<', "$KVersion" or die $!;
    $KVersion = ( grep { /^Linux/ } <$Kfh> )[0];
    $KVersion = ( split / /, $KVersion )[2];
    print_screen "MARS Kernel - $KVersion\n", "$Color_blue";
    
    print_screen "-------------------------------------------------------------------------------\n";
}


#########################################################################################
### avg_limit
sub check_jammed {
    my $jammed = check_link "$mars_dir/emergency-$himself";
    print_screen "-> Mars-Transaktion ", 'bold';
    if (!$jammed) {
        print_screen "running normaly\n", "$Color_green";
    } else {
        print_screen "and Replication not runnunig !!!\n", 'red';
        monitoring 'Failed', 'System: Replikation not running';
    }            
}

#########################################################################################
### limit's auslesen ...
sub check_limit {
    my $LimitText    = shift; 		# sol-text
    my $LimitSolVar  = shift; 		# sol-filename
    my $LimitSolEin  = shift; 		# sol-einheit
    my $LimitIstVar  = shift; 		# ist-filename
    my $LimitIstEin  = shift; 		# ist-einheit
    ### for better ...    
    $LimitSolVar = "" if (!$LimitSolVar); 
    $LimitIstVar = "" if (!$LimitIstVar); 
    $LimitSolEin = "" if (!$LimitSolEin);
    $LimitIstEin = "" if (!$LimitIstEin);

    ### soll
    my $mars_limit_sol;
    if ( open (MARS_LIMIT, "< /proc/sys/mars/$LimitSolVar") ) {
        while (<MARS_LIMIT>) {
            $mars_limit_sol .= $_;
            $mars_limit_sol =~ s/[\n\t]//g;
        }
        close MARS_LIMIT;
    }

    ### ist
    my $mars_limit_ist;
    if ( open (MARS_LIMIT, "< /proc/sys/mars/$LimitIstVar") ) {
        while (<MARS_LIMIT>) {
            $mars_limit_ist .= $_;
            $mars_limit_ist =~ s/[\n\t]//g;
        }
        close MARS_LIMIT;
     }
    
    ### presently results
    print_screen "-> $LimitText: ", 'bold';    
    if ( ($LimitSolVar) && !($LimitIstVar) ) {
        ### only sol & lamport_clock
        if ( $LimitSolVar eq "lamport_clock" ) {
            my $C_Time = $mars_limit_sol;
            $C_Time    =~ s/CURRENT_TIME=//;
            $C_Time    =~ s/lamport_now=.*//;
            my $L_Time = $mars_limit_sol;        
            $L_Time    =~ s/.*lamport_now=//; 
            $mars_limit_sol = sprintf("%.2f", $C_Time - $L_Time);
            print_screen "$mars_limit_sol $LimitSolEin\n";
        ### only sol
        } elsif ( $mars_limit_sol < 1 ) {
            print_screen "is now unsed\n";
        } else {
            print_screen "is set to ";
            print_screen "$mars_limit_sol $LimitSolEin\n", 'red';
        }
    } elsif ( !($LimitSolVar) && ($LimitIstVar) ) {
        ### only ist
        if ( $mars_limit_ist < 1 ) {
            print_screen "is actualy null\n";
        } else {
            print_screen "is actualy ";
            print_screen "$mars_limit_ist $LimitIstEin\n", 'red';
        }
    } elsif ( ($LimitSolVar) && ($LimitIstVar) && ($mars_limit_sol < 1) ) {    
        ### sol & ist = 0
        print_screen "is actualy unused\n";
    } else {
        ### sol & ist / rest ...
        print_screen "is set to ";
        print_screen "$mars_limit_sol $LimitSolEin", 'red';
        print_screen ", actualy used ";
        print_screen "$mars_limit_ist $LimitIstEin\n", 'red';
    }
        
}

##############################################################################
### main loop ...
while(1) {
    my $dateFormat = Date::Language->new('English');

    ### version only
    if ( $params->{version} || $params->{v}) {
        info_version;
        exit 0;
    }
        
    ##########################################################################
    ### main run

    print $clearscreen;
    print "\nNOTE !!!\n********\nThe author does not guarantee this development-test-alpha-pre-beta-version, it is untested and certainly not fully functional. Use at your own risk ;)\n\n";


    ##########################################################################
    ### check and set monitor

    ### big monitor
    if ( $params->{'monitor'} || $params->{'cstate'} || $params->{'dstate'} || $params->{'role'} ) {
        $params->{'system'} = 1;
        $params->{'history'} = 1;
        ### TODO: check!
        $params->{'debug'} = 0;
        $params->{'monitor'} = 1;
    }
    ### small-monitor
    if ((  $params->{'cstate'} || $params->{'dstate'} || $params->{'role'} ) && ( !$params->{'resource'})) {
        display_help "Syntax-Error: Option resource is missing by --cstate / --dstate / --role!";
    }
    

    ##########################################################################
    ### read mars infos
    info_version;

    ##########################################################################
    ### check system limits
    if ( $params->{'system'} ) {
        ### text / sol-file / sol-einheit / ist-file / ist-einheit
        my $mars_disk_space = `df '$mars_dir' | grep '$mars_dir'| awk '{print \$2}'`;
        $mars_disk_space = sprintf("%01.2f", $mars_disk_space / 1024);

        check_limit "AVG-Limit",		"loadavg_limit",		"loadavg";
        check_limit "Memory-Limit",		"mem_limit_percent", 		"%",		"mem_used_raw_kb", 		"kb";        
        check_limit "Network-IO-Timeout",	"network_io_timeout",		"sec";
        check_limit "Traffic Limit", 		"tuning/traffic_limit_kb", 	"kb/s", 	"tuning/traffic_rate_kb", 	"kb/s";
        check_limit "Server-IO Limit", 		"tuning/server_io_limit_kb", 	"kb/s", 	"tuning/server_io_rate_kb", 	"kb/s";
        check_limit "Delay say Overflow",	"",				"",		"delay_say_on_overflow",	"(on/off)";
        check_limit "Statusfile Rollover",	"",				"",		"statusfiles_rollover_sec",	"sec";
        check_limit "Flying IO Count",		"",				"",		"io_flying_count";
        check_limit "LoggerMemory",		"",				"",		"logger_mem_used_kb",		"kb";
        check_limit "FreeSpaceLimit on /mars",	"free_space_mb",		"mb", 		"", 				"$mars_disk_space";
        check_limit "FreeSpaceLimit LogDelete",	"logdel_auto_gb",		"gb";
        check_limit "FreeSpaceLimit LogRotate",	"logrot_auto_gb",		"gb";
        check_limit "LamportClockDifferenz",	"lamport_clock",		"sec";
     
        ### check system params
        check_jammed;
        check_disk_is_full;
    }
    
    
    ##########################################################################
    ### check resources
    check_ressource;
	
	
    ##########################################################################
     ### check global debug
        if ($params->{'debug'}) {
            print_screen "-> Main-Debug:\n", 'red'; 
            my $debug_res;
            $debug_res = check_debugfile("", "2.warn");  print_screen "$debug_res" if ( $debug_res );
            $debug_res = check_debugfile("", "3.error"); print_screen "$debug_res" if ( $debug_res );
            $debug_res = check_debugfile("", "4.fatal"); print_screen "$debug_res" if ( $debug_res );
        }


    ##########################################################################
    ### end, exit for monitor
    if ( $params->{'monitor'} ) {
        if (( $StatusCode eq 'InvaliDate' ||  $StatusCode eq 'Failed' || $StatusCode eq 'OutDate' || $StatusCode eq 'SwitchOff' )) {
            exit 1;
        } else {
            exit 0;
        }
    }


    ##########################################################################
    ### end, next loop
    print color 'reset';
    exit if (not $params->{'interval'});
    sleep($params->{'interval'});

}
exit;