#!/usr/bin/perl

# Copyright 2017 Koha Development team

#

# 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 Test::More tests => 1;

use C4::Reserves;

use Koha::Holds;

use Koha::Database;

use t::lib::Mocks;

use t::lib::TestBuilder;

my $schema = Koha::Database->new->schema;

$schema->storage->txn_begin;

my $builder = t::lib::TestBuilder->new;

subtest 'cancel' => sub {

    plan tests => 10;

    my $biblioitem = $builder->build_object( { class => 'Koha::Biblioitems' } );

    my $library    = $builder->build_object( { class => 'Koha::Libraries' } );

    my $itemtype   = $builder->build_object( { class => 'Koha::ItemTypes', value => { rentalcharge => 0 } } );

    my $item_info  = {

        biblionumber     => $biblioitem->biblionumber,

        biblioitemnumber => $biblioitem->biblioitemnumber,

        homebranch       => $library->branchcode,

        holdingbranch    => $library->branchcode,

        itype            => $itemtype->itemtype,

    };

    my $item = $builder->build_object( { class => 'Koha::Items', value => $item_info } );

    my ( @patrons, @holds );

    for my $i ( 0 .. 2 ) {

        my $priority = $i + 1;

        my $patron   = $builder->build_object(

            {

                class => 'Koha::Patrons',

                value => { branchcode => $library->branchcode, }

            }

        );

        my $reserve_id = C4::Reserves::AddReserve(

            $library->branchcode, $patron->borrowernumber,

            $item->biblionumber,  '',

            $priority,            undef,

            undef,                '',

            "title for fee",      $item->itemnumber,

        );

        my $hold = Koha::Holds->find($reserve_id);

        push @patrons, $patron;

        push @holds,   $hold;

    }

    # There are 3 holds on this records

    my $nb_of_holds =

      Koha::Holds->search( { biblionumber => $item->biblionumber } )->count;

    is( $nb_of_holds, 3,

        'There should have 3 holds placed on this biblio record' );

    my $first_hold  = $holds[0];

    my $second_hold = $holds[1];

    my $third_hold  = $holds[2];

    is( ref($second_hold), 'Koha::Hold',

        'We should play with Koha::Hold objects' );

    is( $second_hold->priority, 2,

        'Second hold should have a priority set to 3' );

    # Remove the second hold, only 2 should still exist in DB and priorities must have been updated

    my $is_cancelled = $second_hold->cancel;

    is( ref($is_cancelled), 'Koha::Hold',

        'Koha::Hold->cancel should return the Koha::Hold (?)' )

      ;    # This is can reconsidered

    is( $second_hold->in_storage, 0,

        'The hold has been cancelled and does not longer exist in DB' );

    $nb_of_holds =

      Koha::Holds->search( { biblionumber => $item->biblionumber } )->count;

    is( $nb_of_holds, 2,

        'a hold has been cancelled, there should have only 2 holds placed on this biblio record'

    );

    # discard_changes to refetch

    is( $first_hold->discard_changes->priority, 1, 'First hold should still be first' );

    is( $third_hold->discard_changes->priority, 2, 'Third hold should now be second' );

    subtest 'charge_cancel_fee parameter' => sub {

        plan tests => 4;

        my $patron_category = $builder->build_object({ class => 'Koha::Patron::Categories', value => { reservefee => 0 } } );

        my $patron = $builder->build_object({ class => 'Koha::Patrons', value => { categorycode => $patron_category->categorycode } });

        is( $patron->account->balance, 0, 'A new patron does not have any charges' );

        my @hold_info = (

            $library->branchcode, $patron->borrowernumber,

            $item->biblionumber,  '',

            1,                    undef,

            undef,                '',

            "title for fee",      $item->itemnumber,

        );

        # First, test cancelling a reserve when there's no charge configured.

        t::lib::Mocks::mock_preference('ExpireReservesMaxPickUpDelayCharge', 0);

        my $reserve_id = C4::Reserves::AddReserve( @hold_info );

        Koha::Holds->find( $reserve_id )->cancel( { charge_cancel_fee => 1 } );

        is( $patron->account->balance, 0, 'ExpireReservesMaxPickUpDelayCharge=0 - The patron should not have been charged' );

        # Then, test cancelling a reserve when there's no charge desired.

        t::lib::Mocks::mock_preference('ExpireReservesMaxPickUpDelayCharge', 42);

        $reserve_id = C4::Reserves::AddReserve( @hold_info );

        Koha::Holds->find( $reserve_id )->cancel(); # charge_cancel_fee => 0

        is( $patron->account->balance, 0, 'ExpireReservesMaxPickUpDelayCharge=42, but charge_cancel_fee => 0, The patron should not have been charged' );

        # Finally, test cancelling a reserve when there's a charge desired and configured.

        t::lib::Mocks::mock_preference('ExpireReservesMaxPickUpDelayCharge', 42);

        $reserve_id = C4::Reserves::AddReserve( @hold_info );

        Koha::Holds->find( $reserve_id )->cancel( { charge_cancel_fee => 1 } );

        is( int($patron->account->balance), 42, 'ExpireReservesMaxPickUpDelayCharge=42 and charge_cancel_fee => 1, The patron should have been charged!' );

    };

    subtest 'waiting hold' => sub {

        plan tests => 1;

        my $patron = $builder->build_object({ class => 'Koha::Patrons' });

        my $reserve_id = C4::Reserves::AddReserve(

            $library->branchcode, $patron->borrowernumber,

            $item->biblionumber,  '',

            1,                    undef,

            undef,                '',

            "title for fee",      $item->itemnumber,

            'W',

        );

        Koha::Holds->find( $reserve_id )->cancel;

        my $hold_old = Koha::Old::Holds->find( $reserve_id );

        is( $hold_old->found, 'W', 'The found column should have been kept and a hold is cancelled' );

    };

};

$schema->storage->txn_rollback;

1;