#! /usr/bin/perl

# parse_harvester_results retreives files of search results from ncbi,
# and is released under the terms of the GPL version 2, or any later
# version, at your option. See the file README and COPYING for more
# information.

# Copyright 2004 by Don Armstrong <don@donarmstrong.com>.

# $Id: ss,v 1.1 2004/06/29 05:26:35 don Exp $


use warnings;
use strict;


use Getopt::Long;
use Pod::Usage;

=head1 NAME

  parse_harvester_results [options]

=head1 SYNOPSIS


 Options:
  --dir, -D directory to stick results into [default .]
  --name, -n file naming scheme [default ${search}_results.$format]
  --terms, -t file of search terms [default -]
  --debug, -d debugging level [default 0]
  --help, -h display this help
  --man, -m display manual

=head1 OPTIONS

=over

=item B<--debug, -d>

Debug verbosity. (Default 0)

=item B<--help, -h>

Display brief useage information.

=item B<--man, -m>

Display this manual.

=back

=head1 EXAMPLES

  parse_harvester_results -D ./harvester_results/ -n '${search}_name.html' < search_parameters

Will pretty much do what you want

=cut



use vars qw($DEBUG $REVISION);

BEGIN{
     ($REVISION) = q$LastChangedRevision: 1$ =~ /LastChangedRevision:\s+([^\s]+)/;
     $DEBUG = 0 unless defined $DEBUG;
}

use IO::File;
use IO::Dir;

# XXX parse config file

my %options = (debug    => 0,
	       help     => 0,
	       man      => 0,
	       dir      => '.',
	       keyword  => undef,
	       keywords => 0,
	      );

GetOptions(\%options,'keyword|k=s','dir|D=s','debug|d+','help|h|?','man|m');


pod2usage() if $options{help};
pod2usage({verbose=>2}) if $options{man};

$DEBUG = $options{debug};

# CSV columns
use constant {NAME        => 0,
	      REFSEQ      => 1,
	      LOCATION    => 2,
	      ALIAS       => 3,
	      FUNCTION    => 4,
	      DESCRIPTION => 5,
	      KEYWORD     => 6,
	      DBNAME      => 7,
	      FILENAME    => 8,
	     };

if ($options{keywords}) {
     if (@ARGV != 1) {
	  pod2usage("If the --keywords option is used, exactly one argument (the keyword) must be passed");
     }
     $option{dir} = "$ARGV[0]_results_harvester";
}



if (not -d $options{dir}) {
     die "$options{dir} does not exist or is not a directory";
}

my $dir = new IO::Dir $options{dir} or die "Unable to open dir $options{dir}: $!";

print join(",", map {qq("$_");} qw(Name RefSeq Location Alias Function Description Keyword DBName Filename)),qq(\n);

my ($keyword) = $options{keyword} || $options{dir} =~ m#(?:^|/)([^\/]+)_results_harvester#;

while ($_ = $dir->read) {
     my $file_name = $_;
     next if $file_name =~ /^\./;
     next unless -f "$options{dir}/$file_name" and -r "$options{dir}/$file_name";

     my $file = new IO::File "$options{dir}/$file_name", 'r' or die "Unable to open file $file_name";

     local $/;
     my $result = <$file>;

     my @results;

     # Find gene name
     ($results[NAME]) = $result =~ m&<img\s+src=\"http://genome-www5.stanford.edu/images/SOURCE/hsgr.gif\"\s*/>
				     </td><td\s+bgcolor="tomato"\s+colspan="1"><center><font\s+size="\+5"
				     \s+color="white">([^<]+)</font></center>&xis;

     if (not defined $results[NAME]) {
	  ($results[NAME]) = $result =~ m&<TR>\s*<TD\s*BGCOLOR="\#FEFE99"\s*VALIGN="top"\s*NOWRAP>Entry\s*name</TD>\s*
					  <TD\s*VALIGN="top"\s*COLSPAN="5">\s*<b>\s*([^<]+?)\s*</b></TD>\s*</TR>&xis;
     }

     $results[NAME] ||= 'NO NAME';

     # Find REF SEQ number
     ($results[REFSEQ]) = $result =~ m&<a\s+href="http://www.ncbi.nlm.nih.gov/entrez/
				       query.fcgi\?db=Nucleotide\&amp;cmd=Search\&amp;term=([^\&]+)\&amp;doptcmdl=GenBank">&xis;

     $results[REFSEQ] ||= 'NO REFSEQ';

     # Find Chromosomal Location
     ($results[LOCATION]) = $result =~ m&Chromosomal\s+Location</font></td></tr>\s+<tr><td\s+colspan="1"\s+bgcolor="beige"><dl>
					 <dd><b>Chromosome/Cytoband</b></td><td\s+width="525"><center>\s*([^\<]+?)\s*</center>&xis;

     $results[LOCATION] ||= 'NO LOCATION';
     # Find gene aliases
     # SOURCE ALIASES
     my ($alias_table) = $result =~ m|Aliases</font></td></tr>\s*<tr><td\s+bgcolor=\"beige\"\s+colspan=\"2\">
                                      <font\s+size=\"-1\"\s*/>\s+<ul>(.+?)</ul>|xis;
     $alias_table ||='';

     my @gene_aliases = $alias_table =~ m&<li>\s*([^\(\<]{0,30}?)\s*(?:\<|\()&gis;

     # UNIPROT ALIASES
     push @gene_aliases, $result =~ m&<TR>\s*<TD\s+BGCOLOR=\"\#CECFCE\"\s+VALIGN=\"top\"\s+NOWRAP>\s*Synonym\(s\)\s*</TD>\s*
				      <TD\s+VALIGN=\"top\"\s+COLSPAN=\"\d\">\s*([^<]+?)\s*</TD>\s*</TR>&xis;
     push @gene_aliases, $result =~ m&<TD\s+BGCOLOR=\"\#CECFCE\"\s+VALIGN=\"top\"\s*>\s*Description\s*</TD>\s*
				      <TD\s+VALIGN=\"top\"\s+COLSPAN=\"\d\">\s*([^<]+?)\s*</TD>\s*</TR>&xis;

     $results[ALIAS] = join('; ', @gene_aliases);
     $results[ALIAS] ||= 'NO ALIASES';

     # Find gene function(s)

     # Stanford GO functions
     my ($gene_ontology) = $result =~ m&<table\s+width="100%"\s+cellspacing="0"\s+border="1"><tr>\s*
					<th\s+valign="middle"\s+align="left"\s+bgcolor="\#CCCCCC">Ontology</th>\s*(.+?)</table>&xis;

     my @functions;
     push @functions, map {s#\s*\"\>\s*# #g; $_;} $gene_ontology =~ m&<a\s+href="http://godatabase.org/cgi-bin/go.cgi\?view=details
								      \&amp;depth=1\&amp;query=([^\"]+\">[^\<]+)</a>&gxis
									   if defined $gene_ontology;

     # UNIPROT GO Functions
     push @functions, map {s#\s*</a>\;?\s*# #g; $_;} m&<TD\s+VALIGN="top"\s+COLSPAN="5">
						    <a\s+href="http://www.ebi.ac.uk/ego/GSearch\?query=[^\&+]\&mode=id">
						    (GO\:\d+</a>\;\s+[^\<]+?)\s*</TD>&xgis;

     $results[FUNCTION] = join('; ', map {(defined $_)?($_):()} @functions);
     $results[FUNCTION] ||= 'NO FUNCTION';

     # Figure out the keyword used
     $results[KEYWORD] = $keyword;

     $results[KEYWORD] ||= 'NO KEYWORD';

     # Figure out what the description is
     ($results[DESCRIPTION]) = map{s#\n# #g; $_;} $result =~ m&<b>Locus\s+Link\s+Summary</b></td><td\s+width="\d+">(.+?)\s*</td>\s*</tr>&is;
     if (not defined $results[DESCRIPTION]) {
	  ($results[DESCRIPTION]) = map{s#\n# #g; $_;} $result =~ m&<TD\s+BGCOLOR="\#CECFCE"\s+VALIGN="center"\s+COLSPAN="2">
								    <FONT\s+face="verdana,helvetica,arial,sans-serif"><B>FUNCTION</B></TD>\s*
								    <TD\s+VALIGN="top"\s+COLSPAN="4">([^\<]+)</TD>\s*</TR>&xis;
     }
     $results[DESCRIPTION] ||= '';

     # Database searched
     $results[DBNAME] = 'harvester';
     $results[FILENAME] = $file_name;

     print join(',',map {qq("$_")} @results),qq(\n);
}






__END__