#!/usr/bin/perl -w
use strict;
$|++;

my $VERSION = '0.07';

#----------------------------------------------------------------------------

=head1 NAME

cpanstats-reparse - script to reparse an NNTP article.

=head1 SYNOPSIS

  perl cpanstats-reparse			\
    [--directory=<dir>]                         \
    [--check|c] [--localonly|l]                 \
    ( [--id=<nntpid>] | [--file=<filename>] )   \
    [--exclude|x=<fields>]			\
    [--help|h]

=head1 DESCRIPTION

This script is used to reparse an NNTP article, which may have been
incorrectly parsed by the cpanstats, and should feature in the stats
for the CPAN Testers Statistics database.

Note that the "check" option will only go through the motions and will not
update the local database, while the "localonly" option will ensure only the
local articles.db database is used to reparse, no NNTP lookup is used.

The ability to ignore field checking for specific fields is enabled via the
use of the exclude option. Using a comma separated list you may enter one
or more of the fields 'dist', 'version', 'from', 'perl' and 'platform'.
This is useful for parsing a faulty report and then using upstats.pl to
amend the appropriate field to the correct value.

=cut

# -------------------------------------
# Library Modules

use lib qw(./lib ../lib);

use Cwd;
use DBI;
use Getopt::ArgvFile default=>1;
use Getopt::Long;
use IO::File;

use CPAN::WWW::Testers::Generator;

# -------------------------------------
# Variables

my (%options,@exclude);

# -------------------------------------
# Program

##### INITIALISE #####

init_options();

my $directory = $options{directory} || cwd();
my $t = CPAN::WWW::Testers::Generator->new(
    directory   => $directory,
    logfile     => $directory . '/logs/cpanstats.log'
);

# GetOptions allows several different ways of passing multiple values, this
# line is to ensure we have a list as we want it :)
my %exclude = map {$_ => 1} split(/,/,join(',',@exclude));
$options{exclude} = \%exclude;

##### MAIN #####

my @list = get_list();
$t->reparse(\%options,@list);

# -------------------------------------
# Subroutines

=item get_list

Returns the list of NNTP ids from the named file.

=cut

sub get_list {
    my @list;

    # we're only parsing one id
    return ($options{id}) if(defined $options{id});

    # we're parsing a list of ids
    my $file = $options{file} || die "--file not specified";
    die "file [$file] not found"    unless(-f $file);

    my $fh = IO::File->new($file,'r')       or die "Cannot read file [$file]: $!";
    while(<$fh>) {
        chomp;
        my ($num) = (m/^(\d+)/);
        push @list, $num;
    }
    $fh->close;
    return @list;
}

=item init_options

Determine command line options and initialise any defaults.

=cut

sub init_options {
    GetOptions( \%options,
        'directory|d=s',
        'check|c',
        'localonly|l',
        'id|i=i',
        'file=s',
        'exclude|x=s' => \@exclude,
        'help|h',
        'version|V'
    );

    _help(1) if($options{help});
    _help(0) if($options{version});
}

sub _help {
    my $full = shift;

    if($full) {
        print <<HERE;

Usage: $0 \\
         [-d=<directory>] [--check|c] [--localonly|l] \\
	 ( --id|i=<num> | --file=<file> ) \\
	 [--exclude=<list>] [-h] [-V]

  -d=<directory>    use named directory
  -c                check only do not update
  -l		    local only lookup
  -i=<num>          named id to reparse
  --file=<file>     file containing ids to reparse
  --exclude=<list>  exclude fields from parsing
  -h                this help screen
  -V                program version

HERE

    }

    print "$0 v$VERSION\n";
    exit(0);
}

__END__

=back

=head1 BUGS, PATCHES & FIXES

There are no known bugs at the time of this release. However, if you spot a
bug or are experiencing difficulties, that is not explained within the POD
documentation, please send bug reports and patches to the RT Queue (see below).

Fixes are dependant upon their severity and my availablity. Should a fix not
be forthcoming, please feel free to (politely) remind me.

RT Queue -
http://rt.cpan.org/Public/Dist/Display.html?Name=CPAN-WWW-Testers-Generator

=head1 SEE ALSO

L<CPAN::WWW::Testers>,
L<CPAN::Testers::WWW::Statistics>

F<http://www.cpantesters.org/>,
F<http://stats.cpantesters.org/>,
F<http://wiki.cpantesters.org/>

=head1 AUTHOR

  Barbie, <barbie@cpan.org>
  for Miss Barbell Productions <http://www.missbarbell.co.uk>.

=head1 COPYRIGHT AND LICENSE

  Copyright (C) 2005-2008 Barbie for Miss Barbell Productions.

  This module is free software; you can redistribute it and/or
  modify it under the same terms as Perl itself.

=cut