#! /usr/bin/perl
# $OpenBSD: list_update_info,v 1.8 2022/05/29 12:12:42 espie Exp $
#
# Copyright (c) 2022 Marc Espie <espie@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

use strict;
use warnings;

use OpenBSD::AddCreateDelete;

package OpenBSD::PackingElement;

sub write_for_locate
{
}

package OpenBSD::PackingElement::Meta;
sub write_for_locate
{
	my ($self, $plist, $o) = @_;
	print {$o->{output}} $plist->pkgname, ":";
	$self->write($o->{output});
}

package OpenBSD::PackingElement::Comment;
sub write_for_locate
{
}

package OpenBSD::PackingElement::SpecialFile;
sub write_for_locate
{
}

package OpenBSD::PackingElement::ExtraInfo;
sub write_for_locate
{
	&OpenBSD::PackingElement::Meta::write_for_locate;
}

package OpenBSD::PackingElement::AlwaysUpdate;
sub write_for_locate
{
	my ($self, $plist, $o) = @_;
	if (!defined $self->{hash}) {
		$o->{ui}->fatal("Update pkg tools and regen package #1\n"
		    ."\t(outdated \@option always-update annotation)",
		    $o->{pkgname});
	}
	&OpenBSD::PackingElement::Meta::write_for_locate;
}

package Scanner;
use OpenBSD::PackageInfo;
use OpenBSD::AddCreateDelete;
use OpenBSD::PackingList;
use OpenBSD::PackageRepository;
use File::Path;
use Digest::SHA;

sub handle_file
{
	my ($self, $f) = @_;
	my $plist = OpenBSD::PackingList->fromfile($f,
	    \&OpenBSD::PackingList::UpdateInfoOnly);
	return if $plist->pkgname =~ m/^quirks\-/;
	# TODO think about generating a "total size" annotation ?
	$self->{pkgname} = $plist->pkgname;
	$plist->write_for_locate($plist, $self);
}

sub handle_options
{
	my $self = shift;
	$self->ui->handle_options('o:', "[-o outputfile] pkgdir");
	my $filename = $self->ui->opt('o');
	if (defined $filename) {
		open($self->{output}, '>', $self->ui->opt('o')) or die;
	} else {
		$self->{output} = \*STDOUT;
	}
}

sub new
{
	my ($class, $cmd) = @_;
	my $ui = OpenBSD::AddCreateDelete::State->new($cmd);
	$ui->{signature_style} = 'unsigned';
	my $o = bless { ui => $ui }, $class;
	$o->handle_options;
	return $o;
}

sub progress
{
	return shift->ui->progress;
}

sub ui
{
	return shift->{ui};
}

sub scan
{
	my ($self, $d) = @_;
	$self->progress->set_header("Scanning");
	opendir(my $dir, $d);
	my @l = readdir $dir;
	closedir($dir);
	my $repo = OpenBSD::PackageRepository->new($d, $self->ui);
	$self->progress->for_list("Scanning", \@l,
	    sub {
		my $pkgname = shift;
		return if $pkgname eq '.' or $pkgname eq '..';
		my $true_package = $repo->find($pkgname);
		return unless $true_package;
		my $dir = $true_package->info;
		$true_package->close;
		#print $pkgname, "\n";
		$self->handle_file($dir.CONTENTS);
		rmtree($dir);
	    });
}

package main;

my $o = Scanner->new('list-update-info');
$o->scan($ARGV[0]);