#!/usr/bin/perl

# Copyright 2017 BibLibre
#
# 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 qw( -utf8 );

use C4::Auth    qw( get_template_and_user );
use C4::Output  qw( output_html_with_http_headers );
use C4::Serials qw( can_edit_subscription );
use Koha::Subscriptions;
use Koha::Acquisition::Booksellers;
use Koha::AdditionalFields;
use Koha::DateUtils qw( dt_from_string );

my $cgi = CGI->new;

my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
    {
        template_name => 'serials/subscription-batchedit.tt',
        query         => $cgi,
        type          => 'intranet',
        flagsrequired => { serials => 'edit_subscription' },
    }
);

my @subscriptionids = $cgi->multi_param('subscriptionid');

my @subscriptions;
foreach my $subscriptionid (@subscriptionids) {
    my $subscription = Koha::Subscriptions->find($subscriptionid);

    push @subscriptions, $subscription if $subscription;
}

my @available_additional_fields = Koha::AdditionalFields->search( { tablename => 'subscription' } )->as_list;

my $batchedit = $cgi->param('batchedit');
if ($batchedit) {
    my %params = (
        aqbooksellerid  => scalar $cgi->param('booksellerid'),
        location        => scalar $cgi->param('location'),
        branchcode      => scalar $cgi->param('branchcode'),
        itemtype        => scalar $cgi->param('itemtype'),
        notes           => scalar $cgi->param('notes'),
        internalnotes   => scalar $cgi->param('internalnotes'),
        serialsadditems => scalar $cgi->param('serialsadditems'),
    );
    # If we convert a blank string we get todays date, we should only convert enddate if it is not blank
    $params{'enddate'} = dt_from_string( scalar $cgi->param('enddate') ) if $cgi->param('enddate');

    my $field_values = {};
    foreach my $field (@available_additional_fields) {
        my $value = $cgi->param( 'field_' . $field->id );
        $field_values->{ $field->id } = $value;
    }

    foreach my $subscription (@subscriptions) {
        next
            unless C4::Serials::can_edit_subscription( $subscription->unblessed )
            ;    # This should be moved to Koha::Subscription->can_edit
        while ( my ( $key, $value ) = each %params ) {
            if ( defined $value and $value ne '' ) {
                $subscription->$key($value);
            }
        }

        my @additional_field_values;
        foreach my $field (@available_additional_fields) {
            my $value = $field_values->{ $field->id };
            if ( defined $value and $value ne '' ) {
                push @additional_field_values, {
                    id    => $field->id,
                    value => $value,
                };
            } else {
                my $existing = $subscription->additional_field_values->search( { field_id => $field->id } )->last;
                if ( $existing && $existing->value ) {
                    push @additional_field_values, {
                        id    => $field->id,
                        value => $existing->value,
                    };
                }
            }
        }
        $subscription->set_additional_fields( \@additional_field_values );

        $subscription->store;
    }

    my $redirect_url = $cgi->param('referrer') // '/cgi-bin/koha/serials/serials-home.pl';
    print $cgi->redirect($redirect_url);
    exit;
}

$template->param(
    subscriptions     => \@subscriptions,
    booksellers       => [ Koha::Acquisition::Booksellers->search->as_list ],
    additional_fields => \@available_additional_fields,
    referrer          => scalar $cgi->param('referrer'),
);

output_html_with_http_headers $cgi, $cookie, $template->output;