#!/usr/bin/env perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#package xCAT_monitoring::performance;
BEGIN
{
    $::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
}
use lib "$::XCATROOT/lib/perl";
use xCAT::NodeRange;
use Sys::Hostname;
use Socket;
use xCAT::Utils;
use xCAT::TableUtils;
use xCAT::NetworkUtils;
use xCAT::GlobalDef;
use xCAT_monitoring::monitorctrl;
use xCAT::MsgUtils;
use xCAT_monitoring::xcatmon;
use strict;
use warnings;
1;
performance();

sub performance
{    #opening subroutine

    my $noderef = xCAT_monitoring::monitorctrl->getMonHierarchy();

    #identification of this node
    my @hostinfo = xCAT::NetworkUtils->determinehostname();

    #print "hosT:@hostinfo\n";
    my $isSV = xCAT::Utils->isServiceNode();

    #print "is sv is:$isSV \n";
    my %iphash = ();
    foreach (@hostinfo) { $iphash{$_} = 1; }
    if (!$isSV) { $iphash{'noservicenode'} = 1; }

    my @children;
    my $str;

    foreach my $key (keys(%$noderef))
    {    #opening foreach1
            #print "opening foreach1 \n";
            #print "key is: $key \n";
        my @key_a = split(':', $key);
        if (!$iphash{ $key_a[0] }) { next; }
        my $mon_nodes = $noderef->{$key};

        foreach (@$mon_nodes)
        {    #opening foreach2
            my $node     = $_->[0];
            my $nodetype = $_->[1];

            #print "node=$node, nodetype=$nodetype\n";
            if (($nodetype) && ($nodetype =~ /$::NODETYPE_OSI/))
            {
                push(@children, $node);
            }
        }    #closing foreach2
    }    #closing foreach1

    #print "children:@children\n";
    my $count_child = @children;
    if ($count_child > 0)
    {    #opening if count_child 1
            #print "number of children is $count_child \n";
        no strict;
        no warnings;

        #my $i=0;
        my @inactive_children;
        for ($i = 0 ; $i < $count_child ; $i++)
        {    #opening if count_child 2
            $str = `pmdumptext -c $::XCATROOT/lib/perl/xCAT_monitoring/pcp/pcpmon.config -d§ -s1 -h$children[$i] -f%D:%H:%M:%S 2>&1`;

            #print "before split is $str \n";
            #if ($str =~ /\s*No\s*route\s*to\s*host/)
            if ($str =~ /pmdumptext:\s*Error:\s*host\s*"\w*":/)
            {
                #print "host unreachable \n";
                @inactive_children = $children[$i];

                #print "inactive children is @inactive_children \n";
            }

            else
            {
                #print "into elso loop \n";
                $str =~ s/\n//g;

                #print "before split_1 is $str \n";
                my @spl1 = split(/§/, $str);

                #print "splitted and #printing \n";
                #print @spl1;
                my $count_spl1 = @spl1;

                #print "the array has $count_spl1 elements \n";
                #print "@spl1[0] \n";
                #print "@spl1[1] \n";
                #my $count3= `cat $::XCATROOT/lib/perl/xCAT_monitoring/pcp/pcpmon.config | wc -l`;
                #print "the number of lines in the file is count3:$count3 \n";
                #`tr "\n" "§" <$::XCATROOT/lib/perl/xCAT_monitoring/pcp/pcpmon.config> $::XCATROOT/lib/perl/xCAT_monitoring/pcp/pcpmon.config.tr`;
                my $fname;
                if (-e "/var/log/pcpmon.config")
                {
                    #print "config under /var/log \n";
                    $fname = "/var/log/pcpmon.config";
                }
                else
                {
                    #print "config not under /var/log \n";
                    $fname = "$::XCATROOT/lib/perl/xCAT_monitoring/pcp/pcpmon.config";
                }
                print "config file is in $fname \n";
                unless (open(CONF, $fname))
                {
                    return (0);
                }
                my @raw_data = <CONF>;
                close(CONF);

                #print "before chopping @raw_data \n";
                chop(@raw_data);

                #print "raw data after chopping is @raw_data \n";
                my $raw_data = join('§', @raw_data);

                #print "the contents of the config file are $raw_data \n";
                my @spl2 = split(/§/, $raw_data);

                #print "splitted and #printing \n";
                #print @spl2;
                my $count_spl2 = @spl2;

                #print "the array has $count_spl2 elements \n";
                #print @spl2[0] ;
                #print @spl2[1] ;
                #print "updating table \n";
                my $table1 = xCAT::Table->new("performance", -create => 1, -autocommit => 1);

                #print "table created \n";
                my $j;

                #my $k;
                my $l = $j + 1;

                #print "l is $l \n";
                my %setting_hash = ();
                for ($j = 0 ; $j < $count_spl2 ; $j++)
                {

                    #print "inside j loop \n";
                    #print "spl1[0] is $spl1[0] \n";
                    my %key_col1 = (timestamp => $spl1[0]);

                    #print "time stamp updated \n";
                    #print "node is $children[$i] \n";
                    $key_col1{node} = $children[$i];

                    #print "children updatesd \n";
                    #print "spl2 is $spl2[$j] \n";
                    $key_col1{attrname} = $spl2[$j];

                    #$setting_hash{attrname}=$spl2[$j];
                    #print "spl1 is $spl1[$j+1] \n";
                    $setting_hash{attrvalue} = $spl1[ $j + 1 ];
                    $table1->setAttribs(\%key_col1, \%setting_hash);
                }
                $table1->close();
            }
        }    #closing if count_child 2


        my $table2 = xCAT::Table->new("monitoring", -create => 1);
        if (!$table2)
        {
            my $rsp = {};
            $rsp->{data}->[0] = "Cannot open the monitoring table.\n";
            $callback->($rsp);
            return 1;
        }

        my $ref = $table2->getAttribs({ 'name' => 'pcpmon' }, 'nodestatmon');

        #print "array is $ref \n";
        my $node_stat = $ref->{nodestatmon};

        #print "nodestatmon is $node_stat \n";
        if ($node_stat = 'Y')
        {    #opening ifnodestatusmon
                #print "inside nodestatus mon $node_stat \n";
            my %node_status = ();

            #print "2nd set is @inactive_children \n";
            my $count_inactive = @inactive_children;
            if ($count_inactive > 0)
            {
                #print "more than 0 inactive children \n";
                #print "3rd set is @inactive_children \n";
                $node_status{$::STATUS_INACTIVE} = \@inactive_children;
                my $changed1 = $nodes_status{$::STATUS_INACTIVE};

                #print "the changed1 is $changed1 \n";
                my @final_inactive = @$changed1;

                #print "final inactive is @final_inactive \n";
            }


            #only set the node status for the changed ones
            if (keys(%node_status) > 0)
            {
                #print %node_status, "\n";
                #print "updating nodelist table \n";
                xCAT_monitoring::xcatmon::setNodeStatusAttributes(\%node_status);
            }

        }    #closing if nodestatusmon
    }    #closing if count_child 1

}    # closing subroutine