# Copyright (C) 2019 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>

# common stuff between -edit, -purge (and maybe -learn in the future)
package PublicInbox::AdminEdit;
use strict;
use warnings;
use PublicInbox::Admin;
our @OPT = qw(all force|f verbose|v!);

sub check_editable ($) {
	my ($ibxs) = @_;

	foreach my $ibx (@$ibxs) {
		my $lvl = $ibx->{indexlevel};
		if (defined $lvl) {
			PublicInbox::Admin::indexlevel_ok_or_die($lvl);
			next;
		}

		# Undefined indexlevel, so `full'...
		# Search::Xapian exists and the DB can be read, at least, fine
		$ibx->search and next;

		# it's possible for a Xapian directory to exist,
		# but Search::Xapian to go missing/broken.
		# Make sure it's purged in that case:
		$ibx->over or die "no over.sqlite3 in $ibx->{mainrepo}\n";

		# $ibx->{search} is populated by $ibx->over call
		my $xdir_ro = $ibx->{search}->xdir(1);
		my $npart = 0;
		foreach my $part (<$xdir_ro/*>) {
			if (-d $part && $part =~ m!/[0-9]+\z!) {
				my $bytes = 0;
				$bytes += -s $_ foreach glob("$part/*");
				$npart++ if $bytes;
			}
		}
		if ($npart) {
			PublicInbox::Admin::require_or_die('-search');
		} else {
			# somebody could "rm -r" all the Xapian directories;
			# let them purge the overview, at least
			$ibx->{indexlevel} ||= 'basic';
		}
	}
}

1;