#!/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, see <http://www.gnu.org/licenses>.
#

use Modern::Perl;

use CGI;
use JSON qw(to_json);

use C4::Auth qw(check_cookie_auth);
use Koha::Club::Enrollment::Fields;
use Koha::Club::Enrollments;
use Koha::Clubs;

my $cgi = CGI->new;

my ($auth_status) =
    check_cookie_auth( $cgi->cookie('CGISESSID'), { clubs => 'enroll' } );
if ( $auth_status ne "ok" ) {
    exit 0;
}

my $op = $cgi->param('op') || q{};
exit unless $op eq 'cud-enroll'; # FIXME could be nicer here.

my $id             = $cgi->param('id');
my $borrowernumber = $cgi->param('borrowernumber');
my $enrollent_id   = scalar $cgi->param('enrollent_id');

my $club = Koha::Clubs->find($id);

my $enrollment;

my @club_enrollment_fields;

if ($enrollent_id) {
    my @enrollment_fields = $club->club_template()->club_template_enrollment_fields()->as_list;
    @club_enrollment_fields =
        Koha::Club::Enrollment::Fields->search( { 'club_enrollment_id' => $enrollent_id } )->as_list;

    foreach my $club_enrollment_field (@club_enrollment_fields) {
        foreach my $e (@enrollment_fields) {
            if ( $e->id() == $club_enrollment_field->club_template_enrollment_field_id ) {
                my $value = $cgi->param( $e->id() );
                $club_enrollment_field->value($value);
                $club_enrollment_field->update();
            }
        }
    }
} elsif ($club) {
    my $already_enrolled = Koha::Club::Enrollments->search(
        {
            club_id        => $club->id(),
            borrowernumber => $borrowernumber,
            date_canceled  => undef,
        }
    )->count();

    my $wrong_branch = $club->branchcode && C4::Context->userenv && C4::Context->userenv->{branch} ne $club->branchcode;

    unless ( $already_enrolled || $wrong_branch ) {
        $enrollment = Koha::Club::Enrollment->new(
            {
                club_id        => $club->id(),
                borrowernumber => $borrowernumber,
                date_enrolled  => \'NOW()',
                date_created   => \'NOW()',
                branchcode     => C4::Context->userenv ? C4::Context->userenv->{branch} : undef,
            }
        )->store();

        if ($enrollment) {
            my @enrollment_fields = $club->club_template()->club_template_enrollment_fields->as_list;

            foreach my $e (@enrollment_fields) {
                my $club_enrollment_field = Koha::Club::Enrollment::Field->new(
                    {
                        club_enrollment_id                => $enrollment->id(),
                        club_template_enrollment_field_id => $e->id(),
                        value                             => scalar $cgi->param( $e->id() ),
                    }
                )->store();
            }
        }
    }
}

binmode STDOUT, ':encoding(UTF-8)';
print $cgi->header( -type => 'application/json', -charset => 'UTF-8' );

if ($enrollent_id) {
    print to_json( { success => @club_enrollment_fields ? 1 : 0 } );
} else {
    print to_json( { success => $enrollment ? 1 : 0 } );
}