#!C:\Perl\bin\perl.exe
use strict;
use warnings;
#use diagnostics;

#   This script is leveraged by an OMW tool and is used to [enable | d
+isable] unplanned outage 
#    mode on a list of servers. It requires two arguments [action] and
+ [filename].
#=====================================================================
+==========================

&main();

sub main {
my $path = 'E:/scripts/OutageNodes/';
require $path.'omwNodeDetails.pm';
open_log($path.'maintenanceMode_');
my $mode=get_mode();
my ($node_ref,$error_ref)=get_node();
my @nodes=@$node_ref;
my @errorlist=@$error_ref;
  if( $mode eq 'enable'){
        enable_unplanned_outage(@nodes);
                     }
  elsif($mode eq 'disable'){
        disable_unplanned_outage(@nodes);
               }
  else {
       printLog("Error invalid Mode $mode");
    }
    
    
printLog("There were ".scalar @errorlist." failed servers in serverlis
+t"); 
 
# clear serverlist
printLog ("Truncating serverlist");
open( SRV,'>',$path.'serverlist.txt') 
      or die "Can't open SRV '$path.serverlist': $!";
close SRV;
close_log();
}

sub get_mode {
          
# expect values 'enable|disable'
my $maintMode = lc $ARGV[0]; 
chomp($maintMode);
if ($maintMode ne 'enable' && $maintMode ne 'disable'){
         $maintMode="error";
    }
    return $maintMode;
}

sub get_node {

my @errorlist=();
my $sPath='e:/scripts/OutageNodes/';
my $sInFile=$sPath.'serverlist.txt';
my @sContent=();
my $sText;

##checks if the file exists and pulls the info out
      if (-e $sInFile){
    open INFILE, '<', $sInFile or die "Could not open $sInFile : $!";
    while (<INFILE>){
      chomp;
      $sText="$_";
      push @sContent,$sText;
      }
                                         
    close INFILE;
  }
  else {
    printLog("ERROR Cannot open $sInFile");
  } 
# check serverlist had entries
if (@sContent == 0){
    printLog("ERROR No nodes found in serverlist.txt");

    close_log();
       exit;
 } 
#get FQDN************

my $hostname;
my $fqdn;

my @serverlist;

for my $NODE (@sContent){
  ($hostname) = split /\./, $NODE;
  $fqdn = getNodeAttributes($hostname,'PrimaryNodeName');
      if(length($fqdn) < 1)
      { 
         printLog("No value returned from WMI, node ($NODE) doesn't ex
+ists in OMW.");
         push @errorlist,$fqdn;
         next;
      }  
    else {
    push(@serverlist,$fqdn);
  }
 }
return(\@serverlist, \@errorlist);
}

sub enable_unplanned_outage {

      my @nodelist=@_[0..$#_];


      foreach my $FQDN (@nodelist) {
      printLog ("===================\n 
      Putting the server $FQDN into outage.");
      
       my $cmd = "ovownodeutil.cmd -outage_node -unplanned -disable_he
+artbeat -delete_msgs -node_name $FQDN -on ";
       my $output =`$cmd`;
      `$cmd`;
      printLog($output);        
    }

}

sub disable_unplanned_outage {
     my @sContent = @_[0..$#_];

####When the servers is brought out of maintenance the agent has to be
+ recycled to reset all the monitors.
         
    foreach my $FQDN (@sContent) {

         printLog ("===================\n 
         Bringing the server $FQDN out of outage."); 
         my $cmd = "ovownodeutil.cmd -outage_node -unplanned -disable_
+heartbeat -delete_msgs -node_name $FQDN -off ";    
           `$cmd`;
         my $output=`$cmd`;
         printLog($output);
         printLog("Restarting the opcmona to reset the monitors");
         my $cmdresopcmona = "ovdeploy -cmd \"ovc -restart opcmona\" -
+host $FQDN";
         `$cmdresopcmona`;
        
    }

}

sub printLog {
  my ($logLine) = @_;
  my $time = sprintf "%02d:%02d:%02d",(localtime)[2,1,0];
  my $date = sprintf "%04d%02d%02d",$year + 1900 , $month + 1 , $day ;
  my $now=$date"\t"$time;
  print LOG "$now $logLine\n";
}

sub open_log {
  my ($filename) = @_;
  my ($day,$month,$year) = (localtime) [3..5];
  #my $date = sprintf "%04d%02d%02d",$year + 1900 , $month + 1 , $day 
+;
  my $logfile = $filename.'.log';
  open LOG,'>>',$logfile or die "Can't open LOG '$logfile': $!\n";
  print LOG "\n====SCRIPT START====\n";
}

sub close_log {
  print LOG "====SCRIPT END====\n";
  close LOG;
}
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