#!/usr/bin/perl
use lib "/usr/share/BackupPC/lib";
use BackupPC::Lib;
use BackupPC::CGI::Lib;
use JSON;

# We need to switch to backuppc UID/GID
my $uid = getuid();
my $gid = getgid();
my (undef,undef,$bkpuid,$bkpgid) = getpwnam('backuppc');
setuid($bkpuid) if ($uid ne $bkpuid);
setgid($bkpgid) if ($gid ne $bkpgid);

# Precise the host to check
my $host = $ARGV[0];

# Get values
my $bpc = BackupPC::Lib->new();
my @backups = $bpc->BackupInfoRead($host);
my $mainConf = $bpc->ConfigDataRead();
my $hostConf = $bpc->ConfigDataRead($host);
my $conf = { %$mainConf, %$hostConf };
my $fullCnt = $incrCnt = 0;
my $fullAge = $incrAge = $lastAge = -1;
my $lastXferErrors = 0;
my $maxErrors = 0;

for ( my $i = 0 ; $i < @backups ; $i++ ) {
  if ( $backups[$i]{type} eq "full" ) {
      $fullCnt++;
      if ( $fullAge < 0 || $backups[$i]{startTime} > $fullAge ) {
          $fullAge  = $backups[$i]{startTime};
          $fullSize = $backups[$i]{size};
          $fullDur  = $backups[$i]{endTime} - $backups[$i]{startTime};
      }
  }
  else {
    $incrCnt++;
    if ( $incrAge < 0 || $backups[$i]{startTime} > $incrAge ) {
      $incrAge = $backups[$i]{startTime};
    }
  }
}

if ( $fullAge > $incrAge && $fullAge >= 0 )  {
  $lastAge = $fullAge;
}
else {
    $lastAge = $incrAge;
}
if ( $lastAge < 0 ) {
    $lastAge = "";
}
else {
    $lastAge = sprintf("%.1f", (time - $lastAge) / (24 * 3600));
}
$lastXferErrors = $backups[@backups-1]{xferErrs} if ( @backups );
$maxErrors = $conf->{MaxXferError} if (defined $conf->{MaxXferError});

# Print results 
print<<"EOF";
Usage: $0 <host>

Full Size of last backup : $fullSize
EOF

exit(0);