#!/usr/bin/perl
use strict;
use warnings;

# History:
# conray  - 19.02.2010 : 19:31 UTC - initial version with ping (-p)
# betterworld - 19.02.2010 : 19:44 UTC - minor changes
# esskar  - 19.02.2010 : 20:27 UTC - changes on ping, and dump myself command (-dump)
# topeg  - 19.02.2010 : 00:02 UTC - addded mirror
# Kalle - 01.03.2010 - added technology assimilation automation

use FindBin;
use Net::Ping;

#EierlegendeWollMilchSau.pl

my $cmd = lc shift @ARGV;
if ($cmd eq '-p' ) #ping
{
  my $ip = shift @ARGV
    or die "No ip.";

  my @r = split(/\./, $ip);
  my $till = shift(@ARGV) || $r[3];

  my $until = $till + 1;
  while ($r[3] < $until )
  {
    $ip = join '.', @r;
    my $ping = Net::Ping->new('icmp', 1, 64 );
    print "$ip " . ($ping->ping($ip) ? 'online' : 'offline') . "\n";
    $r[3]++;
  }
}
elsif($cmd eq '-dump')
{
  my $path = "$FindBin::Bin/$FindBin::Script";
  open(my $myself, "< $path") or die "Unable to open myself ($path): $!";
  while(<$myself>) { print $_; }
  close $myself;
}
elsif( $cmd eq '-devil' )
  {
     print "So long, and thanks for all the fish.\n";
     unlink $0 or die "Will not stop :'-(\n";
  }
elsif($cmd eq '-mirror')
{
  my $fh=\*STDIN;
  my $file=shift;
  open($fh,'<',$file) || die("ERROR open $file ($!)") if($file);
  chomp($_) && print reverse($_)."\n" while(<$fh>);
  close($fh);
}
elsif($cmd eq '-assimilate')
{
  my $newtechsource=shift @ARGV;
  my $borgtechnology;
  my $assimilationspace;
  my $newtechnology;
  my $biomemorycube;
  my ($newcmdname)=split(/\./,$newtechsource,0);

  use File::Basename;
  my ($borgbase,$borgpath)=fileparse($0);
  my $newborgtechnology="${borgpath}Neue$borgbase";
  if (open($borgtechnology,'<',$0)) {
    if (open($assimilationspace,'>',$newborgtechnology)) {
      if (open($newtechnology,'<',$newtechsource)) {
        while(<$borgtechnology>) {
          if (/\\t-assimilate newparameter.pl\\t\\t/) {
            print $assimilationspace $_;
            print $assimilationspace "  print \"\\t-$newcmdname\\t\\t assimilated weird stuff\\n\";\n";
          }
          elsif (/^# elsif\(MORE\) \{ \}/) {
             my $thisline=$_;
             print "Assimiliere neue Technologie...\n";
             print $assimilationspace "elsif(\$cmd eq \'-$newcmdname\')\n\{\n";
             while(<$newtechnology>) {
               next if (/^#!|^use strict;|^use warnings;/);
               print $assimilationspace $_;
             }
             close($newtechnology);
             print $assimilationspace "\}\n$thisline";
          }
          else {
            print $assimilationspace $_;
          }
        }
        close($borgtechnology);
        if (close($assimilationspace)) {
          print "Widerstand war zwecklos!\nNeue Technologie einsetzbar: Neue$borgbase -$newcmdname\n";
        }
        else {
          print "Aktivierungssequenz ungültig. Assimilation abgebrochen.\n";
        }
      }
      else {
        print "Neue Technologie kann nicht assimiliert werden. Abbruch der Assimilation\n";
      }
    }
    else {
      print "Fluktuation im temporären Raum-/Zeitgefüge. Abbruch der Assimilation.\n";
    }
  }
  else {
    print "Wo sind wir ? Es ist so....leise. Bring uns nach Hause!\n";
  }
}

# elsif(MORE) { }    <-- don't touch this
else
{
  print "usage: EierlegendeWollMilchSau.pl <parameters>\n\n";
  print "parameters:\n";
  print "\t-p <ip> [range]\t\ttrys to ping an ip or an range of ip addresses.\n";
  print "\t-dump\t\t\tdumps itself to STDOUT\n";
  print "\t-devil\t\t\tDon't try that\n";
  print "\t-mirror [file]\t\t mirror file or STDIN\n";
  print "\t-assimilate newparam.pl\t assimilate more perl code into this script\n";
  print "\n";
  exit 0;
}

__END__