#!/usr/bin/perl -w

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

sub help {
	return qq{
	Lists all required user attributes. User id is required option. Resource id is optional.
	-----------------------------------------------------------------------
	Available options:
	--userId       | -u user id
	--resourceId   | -r resource to get services from
	--orderById    | -i order by attribute id
	--orderByName  | -n order by attribute friendly name
	--batch        | -b batch
	--help         | -h help

	};
}

my ($userId, $resourceId, $sortingFunction, $batch);
GetOptions ("help|h" => sub { print help(); exit 0;}, "batch|b" => \$batch,
"userId|u=i" => \$userId,
	"resourceId|r=i" => \$resourceId,
"orderById|i" => sub { $sortingFunction = getSortingFunction('getId') },
"orderByName|n" => sub {$sortingFunction = getSortingFunction("getFriendlyName", 1); } ) || die help();

unless(defined $sortingFunction) { $sortingFunction = getSortingFunction("getFriendlyName", 1); }

# Check options
unless (defined($userId)) { die "ERROR: userId is required \n";}

my $agent = Perun::Agent->new();

my $attributesAgent = $agent->getAttributesAgent;

my @attributes;
if ($resourceId) {
	@attributes = $attributesAgent->getResourceRequiredAttributes(user =>$userId, resourceToGetServicesFrom =>$resourceId);
} else {
	@attributes = $attributesAgent->getRequiredAttributes(user =>$userId);
}

unless(@attributes) { printMessage "No required attributes found", $batch;  exit 0; }

my $table = Text::ASCIITable->new();
$table->setCols('attribute Id','attribute friendly name','namespace', 'value');

foreach my $attribute (sort $sortingFunction @attributes) {
	$table->addRow($attribute->getId, $attribute->getFriendlyName, $attribute->getNamespace, $attribute->getValueAsScalar);
}
print tableToPrint($table, $batch);
