#!/usr/bin/perl
use LWP::Simple;      # libwww-perl providing simple HTML get actions
use HTML::Entities;
use URI::Escape;
use Switch;

my @OPTIONS ; #this contains options
my $NAME ; #Movie name
my $count ;
foreach (@ARGV) {
 if ($_ =~ m/^(--)/i) {  
    push(@OPTIONS, $_) ;
 } 
 else  { 
   $NAME=$NAME. $_ . " ";
 }
}

$NAME =~ s/( )$//g ;
my $QUERY = $NAME ;
$QUERY=~ s/ /\+/g ;
subsearch ($QUERY) ;

#Subroutines
# returns text within 'data' between 'beg' and 'end' matching strings
sub parseBetween {
   my ($data, $beg, $end)=@_; # grab parameters
   
   my $ldata = lc($data);
   my $start = index($ldata, lc($beg)) + length($beg);
   my $finish = index($ldata, lc($end), $start);
   if ($start != (length($beg) -1) && $finish != -1) {
      my $result = substr($data, $start, $finish - $start);
      # return w/ decoded numeric character references
      # (see http://www.w3.org/TR/html4/charset.html#h-5.3.1)
      decode_entities($result);
      return $result;
   }
   return "";
}

sub usage {
  print "subsearch.pl <options> <name of the movie>\n" ;
  print "\n" ;
  print "Options\n" ;
  print "--exact only show exact matches\n";
}

sub subsearch {
  my ($QUERY)=@_;
  my $REQUEST = "http://subsearch.org/search.php?q=" . $QUERY . "&slang=fi" ;
  my $RESPONSE = get $REQUEST;
  @LINKS = split(/a href=\"/, $RESPONSE);
  foreach (@LINKS) { 
    my $TITLE = parseBetween($_,"<nobr>","</nobr>");   
    $TITLE =~ s/<span class=\"result\">//;
    $TITLE =~ s/<\/span>//;
    $_ =~ s/\"[^\.]*//;
    if ( $TITLE =~ m/$NAME/i ) {
      switch ($_) {
        case m/opensubtitles/ { opensubtitles($_, $TITLE) }
	case m/subiarkisto/ { subiarkisto($_, $TITLE) }
      }
    }
  }
}

sub subiarkisto {
  my ($ID, $TITLE)=@_;
  $ID =~ s/[a-z]//g;
  $ID =~ s/\///g;
  $ID =~ s/://g;
  $ID =~ s/\.//g; 
  $ID =~ s/\&//g; 
  $ID =~ s/\=//g; 
  $ID =~ s/\?//g; 
  print "$TITLE: " . "http:\/\/subiarkisto.org\/subiarkisto.php?action=download&id=" . "$ID\n" ;
}

sub opensubtitles {
  my ($ID, $TITLE)=@_;
  $ID =~ s/[a-z]//g;
  $ID =~ s/\///g;
  $ID =~ s/://g;
  $ID =~ s/\.//g;
  print "$TITLE: ".  "http:\/\/www.opensubtitles.com\/fi\/download\/sub\/" ."$ID\n";
}