#!/usr/bin/perl

# This file is part of Koha.
#
# Copyright (C) 2016 ByWater Solutions
# Copyright (C) 2017 Koha Development Team
#
# 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 => 17;
use Test::Warn;

use MARC::Record;

use t::lib::TestBuilder;

use C4::Circulation;
use C4::Letters;
use C4::Members;
use C4::Biblio;
use Koha::Database;
use Koha::DateUtils;
use Koha::ArticleRequests;
use Koha::Biblio;
use Koha::Biblioitem;
use Koha::Item;
use Koha::Hold;
use Koha::NewsItem;
use Koha::Serial;
use Koha::Subscription;
use Koha::Suggestion;
use Koha::Checkout;
use Koha::Notice::Messages;
use Koha::Notice::Templates;
use Koha::Patron::Modification;

my $schema = Koha::Database->schema;
$schema->storage->txn_begin();

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

my $dbh = C4::Context->dbh;
$dbh->{RaiseError} = 1;

$dbh->do(q|DELETE FROM letter|);

my $date = dt_from_string;

my $library = $builder->build( { source => 'Branch' } );
my $patron  = $builder->build( { source => 'Borrower' } );
my $patron2 = $builder->build( { source => 'Borrower' } );

my $biblio = Koha::Biblio->new(
    {
        title => 'Test Biblio'
    }
)->store();

my $biblioitem = Koha::Biblioitem->new(
    {
        biblionumber => $biblio->id()
    }
)->store();

my $item = Koha::Item->new(
    {
        biblionumber     => $biblio->id(),
        biblioitemnumber => $biblioitem->id()
    }
)->store();

my $hold = Koha::Hold->new(
    {
        borrowernumber => $patron->{borrowernumber},
        biblionumber   => $biblio->id()
    }
)->store();

my $news         = Koha::NewsItem->new()->store();
my $serial       = Koha::Serial->new()->store();
my $subscription = Koha::Subscription->new()->store();
my $suggestion   = Koha::Suggestion->new()->store();
my $checkout     = Koha::Checkout->new( { itemnumber => $item->id() } )->store();
my $modification = Koha::Patron::Modification->new( { verification_token => "TEST" } )->store();

my $prepared_letter;

my $sth =
  $dbh->prepare(q{INSERT INTO letter (module, code, name, title, content) VALUES ('test',?,'Test','Test',?)});

$sth->execute( "TEST_PATRON", "[% borrower.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_PATRON',
        tables      => {
            borrowers => $patron->{borrowernumber},
        },
    )
);
is( $prepared_letter->{content}, $patron->{borrowernumber}, 'Patron object used correctly with scalar' );

$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_PATRON',
        tables      => {
            borrowers => $patron,
        },
    )
);
is( $prepared_letter->{content}, $patron->{borrowernumber}, 'Patron object used correctly with hashref' );

$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_PATRON',
        tables      => {
            borrowers => [ $patron->{borrowernumber} ],
        },
    )
);
is( $prepared_letter->{content}, $patron->{borrowernumber}, 'Patron object used correctly with arrayref' );

$sth->execute( "TEST_BIBLIO", "[% biblio.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_BIBLIO',
        tables      => {
            biblio => $biblio->id(),
        },
    )
);
is( $prepared_letter->{content}, $biblio->id, 'Biblio object used correctly' );

$sth->execute( "TEST_LIBRARY", "[% branch.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_LIBRARY',
        tables      => {
            branches => $library->{branchcode}
        },
    )
);
is( $prepared_letter->{content}, $library->{branchcode}, 'Library object used correctly' );

$sth->execute( "TEST_ITEM", "[% item.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_ITEM',
        tables      => {
            items => $item->id()
        },
    )
);
is( $prepared_letter->{content}, $item->id(), 'Item object used correctly' );

$sth->execute( "TEST_NEWS", "[% news.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_NEWS',
        tables      => {
            opac_news => $news->id()
        },
    )
);
is( $prepared_letter->{content}, $news->id(), 'News object used correctly' );

$sth->execute( "TEST_HOLD", "[% hold.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_HOLD',
        tables      => {
            reserves => { borrowernumber => $patron->{borrowernumber}, biblionumber => $biblio->id() },
        },
    )
);
is( $prepared_letter->{content}, $hold->id(), 'Hold object used correctly' );

eval {
    $prepared_letter = GetPreparedLetter(
        (
            module      => 'test',
            letter_code => 'TEST_HOLD',
            tables      => {
                reserves => [ $patron->{borrowernumber}, $biblio->id() ],
            },
        )
    )
};
my $croak = $@;
like( $croak, qr{^Multiple foreign keys \(table reserves\) should be passed using an hashref.*}, "GetPreparedLetter should not be called with arrayref for multiple FK" );

# Bug 16942
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_HOLD',
        tables      => {
            'branches'    => $library,
            'borrowers'   => $patron,
            'biblio'      => $biblio->id,
            'biblioitems' => $biblioitem->id,
            'reserves'    => $hold->unblessed,
            'items'       => $hold->itemnumber,
        }
    )
);
is( $prepared_letter->{content}, $hold->id(), 'Hold object used correctly' );

$sth->execute( "TEST_SERIAL", "[% serial.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_SERIAL',
        tables      => {
            serial => $serial->id()
        },
    )
);
is( $prepared_letter->{content}, $serial->id(), 'Serial object used correctly' );

$sth->execute( "TEST_SUBSCRIPTION", "[% subscription.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_SUBSCRIPTION',
        tables      => {
            subscription => $subscription->id()
        },
    )
);
is( $prepared_letter->{content}, $subscription->id(), 'Subscription object used correctly' );

$sth->execute( "TEST_SUGGESTION", "[% suggestion.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_SUGGESTION',
        tables      => {
            suggestions => $suggestion->id()
        },
    )
);
is( $prepared_letter->{content}, $suggestion->id(), 'Suggestion object used correctly' );

$sth->execute( "TEST_ISSUE", "[% checkout.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_ISSUE',
        tables      => {
            issues => $item->id()
        },
    )
);
is( $prepared_letter->{content}, $checkout->id(), 'Checkout object used correctly' );

$sth->execute( "TEST_MODIFICATION", "[% patron_modification.id %]" );
$prepared_letter = GetPreparedLetter(
    (
        module      => 'test',
        letter_code => 'TEST_MODIFICATION',
        tables      => {
            borrower_modifications => $modification->verification_token,
        },
    )
);
is( $prepared_letter->{content}, $modification->id(), 'Patron modification object used correctly' );

subtest 'regression tests' => sub {
    plan tests => 6;

    my $library = $builder->build( { source => 'Branch' } );
    my $patron  = $builder->build( { source => 'Borrower' } );
    my $biblio1 = Koha::Biblio->new({title => 'Test Biblio 1', author => 'An author', })->store->unblessed;
    my $biblioitem1 = Koha::Biblioitem->new({biblionumber => $biblio1->{biblionumber}})->store()->unblessed;
    my $item1 = Koha::Item->new(
        {
            biblionumber     => $biblio1->{biblionumber},
            biblioitemnumber => $biblioitem1->{biblioitemnumber},
            barcode          => 'a_t_barcode',
            homebranch       => $library->{branchcode},
            holdingbranch    => $library->{branchcode},
            itype            => 'BK',
            itemcallnumber   => 'itemcallnumber1',
        }
    )->store->unblessed;
    my $biblio2 = Koha::Biblio->new({title => 'Test Biblio 2'})->store->unblessed;
    my $biblioitem2 = Koha::Biblioitem->new({biblionumber => $biblio2->{biblionumber}})->store()->unblessed;
    my $item2 = Koha::Item->new(
        {
            biblionumber     => $biblio2->{biblionumber},
            biblioitemnumber => $biblioitem2->{biblioitemnumber},
            barcode          => 'another_t_barcode',
            homebranch       => $library->{branchcode},
            holdingbranch    => $library->{branchcode},
            itype            => 'BK',
            itemcallnumber   => 'itemcallnumber2',
        }
    )->store->unblessed;
    my $biblio3 = Koha::Biblio->new({title => 'Test Biblio 3'})->store->unblessed;
    my $biblioitem3 = Koha::Biblioitem->new({biblionumber => $biblio3->{biblionumber}})->store()->unblessed;
    my $item3 = Koha::Item->new(
        {
            biblionumber     => $biblio3->{biblionumber},
            biblioitemnumber => $biblioitem3->{biblioitemnumber},
            barcode          => 'another_t_barcode_3',
            homebranch       => $library->{branchcode},
            holdingbranch    => $library->{branchcode},
            itype            => 'BK',
            itemcallnumber   => 'itemcallnumber3',
        }
    )->store->unblessed;

    C4::Context->_new_userenv('xxx');
    C4::Context->set_userenv(0,0,0,'firstname','surname', $library->{branchcode}, 'Midway Public Library', '', '', '');

    subtest 'ACQ_NOTIF_ON_RECEIV ' => sub {
        plan tests => 1;
        my $code = 'ACQ_NOTIF_ON_RECEIV';
        my $branchcode = $library->{branchcode};
        my $order = $builder->build({ source => 'Aqorder' });

        my $template = q|
Dear <<borrowers.firstname>> <<borrowers.surname>>,
The order <<aqorders.ordernumber>> (<<biblio.title>>) has been received.
Your library.
        |;
        my $params = { code => $code, branchcode => $branchcode, tables => { branches => $library, borrowers => $patron, biblio => $biblio1, aqorders => $order } };
        my $letter = process_letter( { template => $template, %$params });
        my $tt_template = q|
Dear [% borrower.firstname %] [% borrower.surname %],
The order [% order.ordernumber %] ([% biblio.title %]) has been received.
Your library.
        |;
        my $tt_letter = process_letter( { template => $tt_template, %$params });

        is( $tt_letter->{content}, $letter->{content}, 'Verified letter content' );
    };

    subtest 'AR_*' => sub {
        plan tests => 2;
        my $code = 'AR_CANCELED';
        my $branchcode = $library->{branchcode};

        my $template = q|
<<borrowers.firstname>> <<borrowers.surname>> (<<borrowers.cardnumber>>)

Your request for an article from <<biblio.title>> (<<items.barcode>>) has been canceled for the following reason:

<<article_requests.notes>>

Article requested:
Title: <<article_requests.title>>
Author: <<article_requests.author>>
Volume: <<article_requests.volume>>
Issue: <<article_requests.issue>>
Date: <<article_requests.date>>
Pages: <<article_requests.pages>>
Chapters: <<article_requests.chapters>>
Notes: <<article_requests.patron_notes>>
        |;
        reset_template( { template => $template, code => $code, module => 'circulation' } );
        my $article_request = $builder->build({ source => 'ArticleRequest' });
        Koha::ArticleRequests->find( $article_request->{id} )->cancel;
        my $letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;

        my $tt_template = q|
[% borrower.firstname %] [% borrower.surname %] ([% borrower.cardnumber %])

Your request for an article from [% biblio.title %] ([% item.barcode %]) has been canceled for the following reason:

[% article_request.notes %]

Article requested:
Title: [% article_request.title %]
Author: [% article_request.author %]
Volume: [% article_request.volume %]
Issue: [% article_request.issue %]
Date: [% article_request.date %]
Pages: [% article_request.pages %]
Chapters: [% article_request.chapters %]
Notes: [% article_request.patron_notes %]
        |;
        reset_template( { template => $tt_template, code => $code, module => 'circulation' } );
        Koha::ArticleRequests->find( $article_request->{id} )->cancel;
        my $tt_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;
        is( $tt_letter->content, $letter->content, 'Compare AR_* notices' );
        isnt( $tt_letter->message_id, $letter->message_id, 'Comparing AR_* notices should compare 2 different messages' );
    };

    subtest 'CHECKOUT+CHECKIN' => sub {
        plan tests => 4;

        my $checkout_code = 'CHECKOUT';
        my $checkin_code = 'CHECKIN';

        my $dbh = C4::Context->dbh;
        # Enable notification for CHECKOUT - Things are hardcoded here but should work with default data
        $dbh->do(q|INSERT INTO borrower_message_preferences( borrowernumber, message_attribute_id ) VALUES ( ?, ? )|, undef, $patron->{borrowernumber}, 6 );
        my $borrower_message_preference_id = $dbh->last_insert_id(undef, undef, "borrower_message_preferences", undef);
        $dbh->do(q|INSERT INTO borrower_message_transport_preferences( borrower_message_preference_id, message_transport_type) VALUES ( ?, ? )|, undef, $borrower_message_preference_id, 'email' );
        # Enable notification for CHECKIN - Things are hardcoded here but should work with default data
        $dbh->do(q|INSERT INTO borrower_message_preferences( borrowernumber, message_attribute_id ) VALUES ( ?, ? )|, undef, $patron->{borrowernumber}, 5 );
        $borrower_message_preference_id = $dbh->last_insert_id(undef, undef, "borrower_message_preferences", undef);
        $dbh->do(q|INSERT INTO borrower_message_transport_preferences( borrower_message_preference_id, message_transport_type) VALUES ( ?, ? )|, undef, $borrower_message_preference_id, 'email' );

        # historic syntax
        my $checkout_template = q|
The following items have been checked out:
----
<<biblio.title>>
----
Thank you for visiting <<branches.branchname>>.
|;
        reset_template( { template => $checkout_template, code => $checkout_code, module => 'circulation' } );
        my $checkin_template = q[
The following items have been checked out:
----
<<biblio.title>> was due on <<old_issues.date_due | dateonly>>
----
Thank you for visiting <<branches.branchname>>.
];
        reset_template( { template => $checkin_template, code => $checkin_code, module => 'circulation' } );

        C4::Circulation::AddIssue( $patron, $item1->{barcode} );
        my $first_checkout_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;
        C4::Circulation::AddIssue( $patron, $item2->{barcode} );
        my $second_checkout_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;

        AddReturn( $item1->{barcode} );
        my $first_checkin_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;
        AddReturn( $item2->{barcode} );
        my $second_checkin_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;

        Koha::Notice::Messages->delete;

        # TT syntax
        $checkout_template = q|
The following items have been checked out:
----
[% biblio.title %]
----
Thank you for visiting [% branch.branchname %].
|;
        reset_template( { template => $checkout_template, code => $checkout_code, module => 'circulation' } );
        $checkin_template = q[
The following items have been checked out:
----
[% biblio.title %] was due on [% old_checkout.date_due | $KohaDates %]
----
Thank you for visiting [% branch.branchname %].
];
        reset_template( { template => $checkin_template, code => $checkin_code, module => 'circulation' } );

        C4::Circulation::AddIssue( $patron, $item1->{barcode} );
        my $first_checkout_tt_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;
        C4::Circulation::AddIssue( $patron, $item2->{barcode} );
        my $second_checkout_tt_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;

        AddReturn( $item1->{barcode} );
        my $first_checkin_tt_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;
        AddReturn( $item2->{barcode} );
        my $second_checkin_tt_letter = Koha::Notice::Messages->search( {}, { order_by => { -desc => 'message_id' } } )->next;

        is( $first_checkout_tt_letter->content, $first_checkout_letter->content, 'Verify first checkout letter' );
        is( $second_checkout_tt_letter->content, $second_checkout_letter->content, 'Verify second checkout letter' );
        is( $first_checkin_tt_letter->content, $first_checkin_letter->content, 'Verify first checkin letter'  );
        is( $second_checkin_tt_letter->content, $second_checkin_letter->content, 'Verify second checkin letter' );

    };

    subtest 'DUEDGST|count' => sub {
        plan tests => 1;

        my $code = 'DUEDGST';

        my $dbh = C4::Context->dbh;
        # Enable notification for DUEDGST - Things are hardcoded here but should work with default data
        $dbh->do(q|INSERT INTO borrower_message_preferences( borrowernumber, message_attribute_id ) VALUES ( ?, ? )|, undef, $patron->{borrowernumber}, 1 );
        my $borrower_message_preference_id = $dbh->last_insert_id(undef, undef, "borrower_message_preferences", undef);
        $dbh->do(q|INSERT INTO borrower_message_transport_preferences( borrower_message_preference_id, message_transport_type) VALUES ( ?, ? )|, undef, $borrower_message_preference_id, 'email' );

        my $params = {
            code => $code,
            substitute => { count => 42 },
        };

        my $template = q|
You have <<count>> items due
        |;
        my $letter = process_letter( { template => $template, %$params });

        my $tt_template = q|
You have [% count %] items due
        |;
        my $tt_letter = process_letter( { template => $tt_template, %$params });
        is( $tt_letter->{content}, $letter->{content}, );
    };

    subtest 'HOLD_SLIP|dates|today' => sub {
        plan tests => 2;

        my $code = 'HOLD_SLIP';

        C4::Reserves::AddReserve( $library->{branchcode}, $patron->{borrowernumber}, $biblio1->{biblionumber}, undef, undef, undef, undef, "a note", undef, $item1->{itemnumber}, 'W' );
        C4::Reserves::AddReserve( $library->{branchcode}, $patron->{borrowernumber}, $biblio2->{biblionumber}, undef, undef, undef, undef, "another note", undef, $item2->{itemnumber} );

        my $template = <<EOF;
<h5>Date: <<today>></h5>

<h3> Transfer to/Hold in <<branches.branchname>></h3>

<h3><<borrowers.surname>>, <<borrowers.firstname>></h3>

<ul>
    <li><<borrowers.cardnumber>></li>
    <li><<borrowers.phone>></li>
    <li> <<borrowers.address>><br />
         <<borrowers.address2>><br />
         <<borrowers.city>>  <<borrowers.zipcode>>
    </li>
    <li><<borrowers.email>></li>
</ul>
<br />
<h3>ITEM ON HOLD</h3>
<h4><<biblio.title>></h4>
<h5><<biblio.author>></h5>
<ul>
   <li><<items.barcode>></li>
   <li><<items.itemcallnumber>></li>
   <li><<reserves.waitingdate>></li>
</ul>
<p>Notes:
<pre><<reserves.reservenotes>></pre>
</p>
EOF

        reset_template( { template => $template, code => $code, module => 'circulation' } );
        my $letter_for_item1 = C4::Reserves::ReserveSlip( $library->{branchcode}, $patron->{borrowernumber}, $biblio1->{biblionumber} );
        my $letter_for_item2 = C4::Reserves::ReserveSlip( $library->{branchcode}, $patron->{borrowernumber}, $biblio2->{biblionumber} );

        my $tt_template = <<EOF;
<h5>Date: [% today | \$KohaDates with_hours => 1 %]</h5>

<h3> Transfer to/Hold in [% branch.branchname %]</h3>

<h3>[% borrower.surname %], [% borrower.firstname %]</h3>

<ul>
    <li>[% borrower.cardnumber %]</li>
    <li>[% borrower.phone %]</li>
    <li> [% borrower.address %]<br />
         [% borrower.address2 %]<br />
         [% borrower.city %]  [% borrower.zipcode %]
    </li>
    <li>[% borrower.email %]</li>
</ul>
<br />
<h3>ITEM ON HOLD</h3>
<h4>[% biblio.title %]</h4>
<h5>[% biblio.author %]</h5>
<ul>
   <li>[% item.barcode %]</li>
   <li>[% item.itemcallnumber %]</li>
   <li>[% hold.waitingdate | \$KohaDates %]</li>
</ul>
<p>Notes:
<pre>[% hold.reservenotes %]</pre>
</p>
EOF

        reset_template( { template => $tt_template, code => $code, module => 'circulation' } );
        my $tt_letter_for_item1 = C4::Reserves::ReserveSlip( $library->{branchcode}, $patron->{borrowernumber}, $biblio1->{biblionumber} );
        my $tt_letter_for_item2 = C4::Reserves::ReserveSlip( $library->{branchcode}, $patron->{borrowernumber}, $biblio2->{biblionumber} );

        is( $tt_letter_for_item1->{content}, $letter_for_item1->{content}, );
        is( $tt_letter_for_item2->{content}, $letter_for_item2->{content}, );
    };

    subtest 'ISSUESLIP|checkedout|repeat' => sub {
        plan tests => 2;

        my $code = 'ISSUESLIP';

        my $branchcode = $library->{branchcode};

        Koha::News->delete;
        my $news_item = Koha::NewsItem->new({ branchcode => $branchcode, title => "A wonderful news", content => "This is the wonderful news." })->store;

        # historic syntax
        my $template = <<EOF;
<h3><<branches.branchname>></h3>
Checked out to <<borrowers.title>> <<borrowers.firstname>> <<borrowers.initials>> <<borrowers.surname>> <br />
(<<borrowers.cardnumber>>) <br />

<<today>><br />

<h4>Checked Out</h4>
<checkedout>
<p>
<<biblio.title>> <br />
Barcode: <<items.barcode>><br />
Date due: <<issues.date_due | dateonly>><br />
</p>
</checkedout>

<h4>Overdues</h4>
<overdue>
<p>
<<biblio.title>> <br />
Barcode: <<items.barcode>><br />
Date due: <<issues.date_due | dateonly>><br />
</p>
</overdue>

<hr>

<h4 style="text-align: center; font-style:italic;">News</h4>
<news>
<div class="newsitem">
<h5 style="margin-bottom: 1px; margin-top: 1px"><b><<opac_news.title>></b></h5>
<p style="margin-bottom: 1px; margin-top: 1px"><<opac_news.content>></p>
<p class="newsfooter" style="font-size: 8pt; font-style:italic; margin-bottom: 1px; margin-top: 1px">Posted on <<opac_news.timestamp>></p>
<hr />
</div>
</news>
EOF

        reset_template( { template => $template, code => $code, module => 'circulation' } );

        C4::Circulation::AddIssue( $patron, $item1->{barcode} ); # Add a first checkout
        my $first_slip = C4::Members::IssueSlip( $branchcode, $patron->{borrowernumber} );

        C4::Circulation::AddIssue( $patron, $item2->{barcode} ); # Add a second checkout
        my $yesterday = dt_from_string->subtract( days => 1 );
        C4::Circulation::AddIssue( $patron, $item3->{barcode}, $yesterday ); # Add an overdue
        my $second_slip = C4::Members::IssueSlip( $branchcode, $patron->{borrowernumber} );

        # Cleanup
        AddReturn( $item1->{barcode} );
        AddReturn( $item2->{barcode} );
        AddReturn( $item3->{barcode} );

        # TT syntax
        my $tt_template = <<EOF;
<h3>[% branch.branchname %]</h3>
Checked out to [% borrower.title %] [% borrower.firstname %] [% borrower.initials %] [% borrower.surname %] <br />
([% borrower.cardnumber %]) <br />

[% today | \$KohaDates with_hours => 1 %]<br />

<h4>Checked Out</h4>
[% FOREACH checkout IN checkouts %]
[%~ SET item = checkout.item %]
[%~ SET biblio = checkout.item.biblio %]
<p>
[% biblio.title %] <br />
Barcode: [% item.barcode %]<br />
Date due: [% checkout.date_due | \$KohaDates %]<br />
</p>
[% END %]

<h4>Overdues</h4>
[% FOREACH overdue IN overdues %]
[%~ SET item = overdue.item %]
[%~ SET biblio = overdue.item.biblio %]
<p>
[% biblio.title %] <br />
Barcode: [% item.barcode %]<br />
Date due: [% overdue.date_due | \$KohaDates %]<br />
</p>
[% END %]

<hr>

<h4 style="text-align: center; font-style:italic;">News</h4>
[% FOREACH n IN news %]
<div class="newsitem">
<h5 style="margin-bottom: 1px; margin-top: 1px"><b>[% n.title %]</b></h5>
<p style="margin-bottom: 1px; margin-top: 1px">[% n.content %]</p>
<p class="newsfooter" style="font-size: 8pt; font-style:italic; margin-bottom: 1px; margin-top: 1px">Posted on [% n.timestamp | \$KohaDates %]</p>
<hr />
</div>
[% END %]
EOF

        reset_template( { template => $tt_template, code => $code, module => 'circulation' } );

        C4::Circulation::AddIssue( $patron, $item1->{barcode} ); # Add a first checkout
        my $first_tt_slip = C4::Members::IssueSlip( $branchcode, $patron->{borrowernumber} );

        C4::Circulation::AddIssue( $patron, $item2->{barcode} ); # Add a second checkout
        C4::Circulation::AddIssue( $patron, $item3->{barcode}, $yesterday ); # Add an overdue
        my $second_tt_slip = C4::Members::IssueSlip( $branchcode, $patron->{borrowernumber} );

        # There is too many line breaks generated by the historic syntax
        $second_slip->{content} =~ s|</p>\n\n\n<p>|</p>\n\n<p>|s;

        is( $first_tt_slip->{content}, $first_slip->{content}, );
        is( $second_tt_slip->{content}, $second_slip->{content}, );
    };
};

subtest 'loops' => sub {
    plan tests => 2;
    my $code = "TEST";
    my $module = "TEST";

    subtest 'primary key is AI' => sub {
        plan tests => 1;
        my $patron_1 = $builder->build({ source => 'Borrower' });
        my $patron_2 = $builder->build({ source => 'Borrower' });

        my $template = q|[% FOREACH patron IN borrowers %][% patron.surname %][% END %]|;
        reset_template( { template => $template, code => $code, module => $module } );
        my $letter = GetPreparedLetter( module => $module, letter_code => $code, loops => { borrowers => [ $patron_1->{borrowernumber}, $patron_2->{borrowernumber} ] } );
        my $expected_letter = join '', ( $patron_1->{surname}, $patron_2->{surname} );
        is( $letter->{content}, $expected_letter, );
    };

    subtest 'foreign key is used' => sub {
        plan tests => 1;
        my $patron_1 = $builder->build({ source => 'Borrower' });
        my $patron_2 = $builder->build({ source => 'Borrower' });
        my $checkout_1 = $builder->build({ source => 'Issue', value => { borrowernumber => $patron_1->{borrowernumber} } } );
        my $checkout_2 = $builder->build({ source => 'Issue', value => { borrowernumber => $patron_1->{borrowernumber} } } );

        my $template = q|[% FOREACH checkout IN checkouts %][% checkout.issue_id %][% END %]|;
        reset_template( { template => $template, code => $code, module => $module } );
        my $letter = GetPreparedLetter( module => $module, letter_code => $code, loops => { issues => [ $checkout_1->{itemnumber}, $checkout_2->{itemnumber} ] } );
        my $expected_letter = join '', ( $checkout_1->{issue_id}, $checkout_2->{issue_id} );
        is( $letter->{content}, $expected_letter, );
    };
};

sub reset_template {
    my ( $params ) = @_;
    my $template   = $params->{template};
    my $code       = $params->{code};
    my $module     = $params->{module} || 'test_module';

    Koha::Notice::Templates->search( { code => $code } )->delete;
    Koha::Notice::Template->new(
        {
            module                 => $module,
            code                   => $code,
            branchcode             => '',
            name                   => $code,
            title                  => $code,
            message_transport_type => 'email',
            content                => $template
        }
    )->store;
}

sub process_letter {
    my ($params)   = @_;
    my $template   = $params->{template};
    my $tables     = $params->{tables};
    my $substitute = $params->{substitute};
    my $code       = $params->{code};
    my $module     = $params->{module} || 'test_module';
    my $branchcode = $params->{branchcode};

    reset_template( $params );

    my $letter = C4::Letters::GetPreparedLetter(
        module      => $module,
        letter_code => $code,
        branchcode  => '',
        tables      => $tables,
        substitute  => $substitute,
    );
    return $letter;
}