#!/usr/bin/perl

use strict;
use warnings;
use Getopt::Long qw(:config no_ignore_case);
use Perun::Agent;
use Perun::Common qw(printMessage);

sub help {
	return qq{
	Removes selected hosts and destinations from the facility. Facility id (or name) and one or more host name are required fields.
	------------------------------------
	Available options:
	--hosts        | -H list Of Host names
	--facilityId   | -f facility id
	--facilityName | -F facility name
	--batch        | -b batch
	--help         | -h prints this help

	};
}

my (@hosts, $facilityId, $facilityName, $batch);
GetOptions ("help|h" => sub { print help(); exit 0;} ,
	"batch|b" => \$batch,
'hosts|H=s@{1,}' => \@hosts,
"facilityId|f=i" => \$facilityId,
"facilityName|F=s" => \$facilityName) || die help();

# Check options
unless (@hosts) { die "ERROR: hosts are required \n";}
unless(defined $facilityId or (defined $facilityName)) { die "ERROR: facilityId or facilityName is required\n";}

my $agent = Perun::Agent->new();
my $hostsAgent = $agent->getHostsAgent;
my $facilitiesAgent = $agent->getFacilitiesAgent;
my $servicesAgent = $agent->getServicesAgent;

unless($facilityId) {
	my $facility = $facilitiesAgent->getFacilityByName(name => $facilityName);
	$facilityId = $facility->getId;
}

my @allhosts = $facilitiesAgent->getHosts(facility => $facilityId);
unless(@allhosts) { printMessage "No host found", $batch; exit 0;}

my ($fhost,$rhost,@rhosts,@rdests);
foreach $fhost (@allhosts) {
	foreach $rhost (@hosts) {
		if ($fhost->getHostname eq $rhost) {
			push(@rhosts,$fhost->getId);
			push(@rdests,$fhost->getHostname);
		}
	}
}

# zruseni Hosts
$facilitiesAgent->removeHosts(hosts => \@rhosts, facility => $facilityId);
printMessage("Hosts: @hosts successfully removed from the facility Id:$facilityId", $batch);

# zruseni Destinations
my @services = $servicesAgent->getAssignedServices(facility => $facilityId);
my ($destination,$service);
my $typ="host";

foreach $destination (@rdests) {
	foreach $service (@services) {
		eval {
			$servicesAgent->removeDestination(facility => $facilityId, service => $service->getId, destination => $destination, type => $typ);
			printMessage("Destination:$destination removed from the facility Id:$facilityId and service:".$service->getName, $batch);
		};
	}
}
