#!/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 Modern::Perl;

use CGI qw ( -utf8 );

use C4::Auth;
use C4::Output;
use C4::Members;
use C4::Form::MessagingPreferences;
use Koha::AuthUtils;
use Koha::Patrons;
use Koha::Patron::Consent;
use Koha::Patron::Modifications;
use Koha::Patron::Categories;

my $cgi = new CGI;
my $dbh = C4::Context->dbh;

unless ( C4::Context->preference('PatronSelfRegistration') ) {
    print $cgi->redirect("/cgi-bin/koha/opac-main.pl");
    exit;
}

my $token = $cgi->param('token');
my $m = Koha::Patron::Modifications->find( { verification_token => $token } );

my ( $template, $borrowernumber, $cookie );

if (
    $m # The token exists and the email is unique if requested
    and not(
            C4::Context->preference('PatronSelfRegistrationEmailMustBeUnique')
        and Koha::Patrons->search( { email => $m->email } )->count
    )
  )
{
    ( $template, $borrowernumber, $cookie ) = get_template_and_user(
        {
            template_name   => "opac-registration-confirmation.tt",
            type            => "opac",
            query           => $cgi,
            authnotrequired => 1,
        }
    );

    my $patron_attrs = $m->unblessed;
    $patron_attrs->{password} ||= Koha::AuthUtils::generate_password(Koha::Patron::Categories->find($patron_attrs->{categorycode}));
    my $consent_dt = delete $patron_attrs->{gdpr_proc_consent};
    $patron_attrs->{categorycode} ||= C4::Context->preference('PatronSelfRegistrationDefaultCategory');
    delete $patron_attrs->{timestamp};
    delete $patron_attrs->{verification_token};
    delete $patron_attrs->{changed_fields};
    my $patron = Koha::Patron->new( $patron_attrs )->store;

    Koha::Patron::Consent->new({ borrowernumber => $patron->borrowernumber, type => 'GDPR_PROCESSING', given_on => $consent_dt })->store if $consent_dt;

    if ($patron) {
        $m->delete();
        C4::Form::MessagingPreferences::handle_form_action($cgi, { borrowernumber => $patron->borrowernumber }, $template, 1, C4::Context->preference('PatronSelfRegistrationDefaultCategory') ) if C4::Context->preference('EnhancedMessagingPreferences');

        $template->param( password_cleartext => $patron->plain_text_password );
        $template->param( borrower => $patron );
        $template->param(
            PatronSelfRegistrationAdditionalInstructions =>
              C4::Context->preference(
                'PatronSelfRegistrationAdditionalInstructions')
        );

        my ($theme, $news_lang, $availablethemes) = C4::Templates::themelanguage(C4::Context->config('opachtdocs'),'opac-registration-confirmation.tt','opac',$cgi);
        $template->param( news_lang => $news_lang );
    }

}
else {
    ( $template, $borrowernumber, $cookie ) = get_template_and_user(
        {
            template_name   => "opac-registration-invalid.tt",
            type            => "opac",
            query           => $cgi,
            authnotrequired => 1,
        }
    );
}

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