#!/usr/bin/perl

# Copyright 2014 ByWater Solutions
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

use Modern::Perl;

use CGI;
use JSON qw(to_json);

use C4::Circulation;
use C4::Context;
use C4::Auth qw(check_cookie_auth);

use Koha::DateUtils qw(output_pref dt_from_string);

my $input = new CGI;

my ( $auth_status, $sessionID ) =
  check_cookie_auth( $input->cookie('CGISESSID'),
    { circulate => 'circulate_remaining_permissions' } );

if ( $auth_status ne "ok" ) {
    exit 0;
}

binmode STDOUT, ":encoding(UTF-8)";
print $input->header( -type => 'text/plain', -charset => 'UTF-8' );

my $itemnumber     = $input->param('itemnumber');
my $borrowernumber = $input->param('borrowernumber');
my $override_limit = $input->param('override_limit');
my $branchcode     = $input->param('branchcode')
  || C4::Context->userenv->{'branch'};
my $date_due;
if ( $input->param('date_due') ) {
    $date_due = dt_from_string( scalar $input->param('date_due') );
}

my $data;
$data->{itemnumber} = $itemnumber;
$data->{borrowernumber} = $borrowernumber;
$data->{branchcode} = $branchcode;

( $data->{renew_okay}, $data->{error} ) =
  CanBookBeRenewed( $borrowernumber, $itemnumber, $override_limit );

if ( $data->{renew_okay} ) {
    $date_due = AddRenewal( $borrowernumber, $itemnumber, $branchcode, $date_due );
    $data->{date_due} = output_pref( { dt => $date_due, as_due_date => 1 } );
}

print to_json($data);