#!/usr/bin/perl

# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.

use strict;
use warnings;
use C4::Templates;
use CGI qw ( -utf8 );

my $query    = new CGI;
my $language = $query->param('language');
# Detect where the user came from and save that url
my $requestedUrl = $query->url(-base => 1) ;
# Use referer url if it matches $requestedUrl else use $requestedUrl as the url .
my $url = $query->referer()=~$requestedUrl  ? $query->referer()  : $requestedUrl;

# warn "Language : $query // $language // $url";

# If language was set by an external URL the parameter
# 'language=' should be removed from url string, otherwise
# the language picker will not work
$url =~ s|(.)language=[\w-]*&?|$1|;
$url =~ s|(&\|\?)$||; # Remove extraneous ? or &

C4::Templates::setlanguagecookie( $query, $language, $url );