#!/usr/bin/perl

use strict;
use warnings;
use Net::NNTP;
use HTML::Entities;

my @alt = (
	['nntp.perl.org' => 'perl.perl5.porters'],
	['news.gmane.io' => 'gmane.comp.lang.perl.perl5.porters'],
);

my ($nntp, $count, $first, $last);
for my $alt (@alt) {
	$nntp = Net::NNTP->new($alt->[0], Timeout => 10)
		or next;
	($count, $first, $last) = $nntp->group($alt->[1]);
	last;
}
die "Cannot retrieve news: $!" if not $nntp;

my %d = %{$nntp->xhdr('Date', [$last-10, $last])};
my %f = %{$nntp->xhdr('From', [$last-10, $last])};
my %s = %{$nntp->xhdr('Subject', [$last-10, $last])};

# TODO: Escape potential HTML characters

for ((reverse sort keys %d)[0..4]) {
	$_ = encode_entities($_) for ($d{$_}, $f{$_}, $s{_});
	$f{$_} =~ s,@[^.]*\.,@<i>hidden</i>.,;
	my $l = "https://www.nntp.perl.org/group/perl.perl5.porters/0/0/msg$_.html";
	print <<HTML;
<div class="entry">
<div class="date">Date: $d{$_}</div>
<div class="from">From: $f{$_}</div>
<div class="subject"><a href="$l">$s{$_}</a></div>
</div>
HTML
}

$nntp->quit;