#! /usr/bin/perl

use warnings;
use strict;
use Debbugs::Config qw(:globals);
use Debbugs::Status qw(splitpackages buggy get_bug_status);
use Debbugs::Packages qw(getpkgsrc getversions makesourceversions);
use Debbugs::Bugs qw(count_bugs);

my %strong = map { $_ => 1 } @gStrongSeverities;
my $pkgsrc = getpkgsrc();
my $version_cache = {};
# love my do nothing warn handler?
$SIG{__WARN__} = sub {};
for my $dist ('testing', 'unstable') {
  # no locking, so don't run this multiple times mmkay
  open IMPBUGS, "> /org/bugs.debian.org/www/stats/impbugs.$dist.txt.new"
    or die "can't open impbugs.$dist.txt.new: $!";

  my @merged;
  my %impbugs = count_bugs(function => sub {
    my %d = @_;

    # Fast checks.
    return () if $d{status} eq 'done' or not $strong{$d{severity}};
    my %tags = map { $_ => 1 } split ' ', $d{tags};
    return () if $tags{fixed} or $tags{'etch-ignore'};
    return () if (grep /^$d{bug}$/, @merged);

    # Unfortunately mergedwith isn't indexed.
    my $status = get_bug_status(bug => $d{bug});
    push(@merged, split(' ', $status->{'mergedwith'}));

    #set_option('dist', $dist);
    my %affected=();

    foreach my $pkg (splitpackages($d{pkg})) {
        my @versions = getversions($pkg, $dist, 'source');
        if (defined $versions[0]) {
            if (not $pkgsrc->{$pkg} or $pkg eq $pkgsrc->{$pkg}) { # if it has source and is source-only, the makesourceversions fails ...
               @versions = map { "$pkg/$_" unless /^\//} @versions;
            } else {
               @versions = makesourceversions($pkg, 'source', @versions);
            }
        } else {
            @versions = getversions($pkg, $dist, 'i386');
            ## ^ buggy! fix me!
            @versions = makesourceversions($pkg, 'i386', @versions);
        }
        for my $version (@versions) {
           my $buggy = buggy(bug => $d{bug}, version => $version,
			     found => $status->{found_versions},
			     fixed => $status->{fixed_versions},
			     version_cache => $version_cache,
			     package => $pkg);
           if ($buggy eq 'found') {
               $affected{$pkg}=1;
               last;
           }
        }
    }
    return keys %affected;
  });

  print "warnings/errors: $@" if $@;
  for my $pkg (reverse sort keys %impbugs) {
    print IMPBUGS "$pkg $impbugs{$pkg}\n" or die "can't write to impbugs.$dist.txt.new: $!";
  }
  close IMPBUGS or die "can't close impbugs.$dist.txt.new: $!";
  rename "/org/bugs.debian.org/www/stats/impbugs.$dist.txt.new", "/org/bugs.debian.org/www/stats/impbugs.$dist.txt"
    or die "can't rename impbugs.$dist.txt.new to impbugs.$dist.txt: $!";
}