#!/usr/bin/perl

# Copyright 2000-2002 Katipo Communications
# parts copyright 2010 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>.


=head1 NAME

opac-ISBDdetail.pl - script to show a biblio in ISBD format

=head1 DESCRIPTION

This script needs a biblionumber as parameter 

It shows the biblio

The template is in <templates_dir>/catalogue/ISBDdetail.tt.
this template must be divided into 11 "tabs".

The first 10 tabs present the biblio, the 11th one presents
the items attached to the biblio

=head1 FUNCTIONS

=cut

use Modern::Perl;

use C4::Auth qw( get_template_and_user );
use C4::Context;
use C4::Output qw( parametrized_url output_html_with_http_headers );
use CGI qw ( -utf8 );
use C4::Biblio qw(
    CountItemsIssued
    GetISBDView
    GetMarcControlnumber
    GetMarcISSN
    TransformMarcToKoha
);
use C4::Reserves qw( IsAvailableForItemLevelRequest );
use C4::Serials qw( CountSubscriptionFromBiblionumber SearchSubscriptions GetLatestSerials );
use C4::Koha qw(
    GetNormalizedEAN
    GetNormalizedISBN
    GetNormalizedOCLCNumber
    GetNormalizedUPC
);
use Koha::CirculationRules;
use Koha::ItemTypes;
use Koha::Patrons;
use Koha::RecordProcessor;
use Koha::Biblios;
use Koha::Util::MARC;

my $query = CGI->new();
my $biblionumber = $query->param('biblionumber');
my $biblio;
$biblio = Koha::Biblios->find( $biblionumber, { prefetch => [ 'metadata', 'items' ] } ) if $biblionumber;
if( !$biblio ) {
    print $query->redirect('/cgi-bin/koha/errors/404.pl');
    exit;
}

#open template
my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
    {
        template_name   => "opac-ISBDdetail.tt",
        query           => $query,
        type            => "opac",
        authnotrequired => ( C4::Context->preference("OpacPublic") ? 1 : 0 ),
    }
);

my $patron = Koha::Patrons->find($loggedinuser);

my $opachiddenitems_rules = C4::Context->yaml_preference('OpacHiddenItems');

unless ( $patron and $patron->category->override_hidden_items ) {
    # only skip this check if there's a logged in user
    # and its category overrides OpacHiddenItems
    if ( $biblio->hidden_in_opac({ rules => $opachiddenitems_rules }) ) {
        print $query->redirect('/cgi-bin/koha/errors/404.pl'); # escape early
        exit;
    }
}

my $record = $biblio->metadata->record;
my @items  = $biblio->items->filter_by_visible_in_opac({ patron => $patron })->as_list;

my $record_processor = Koha::RecordProcessor->new(
    {   filters => [ 'EmbedItems', 'ViewPolicy' ],
        options => {
            interface     => 'opac',
            frameworkcode => $biblio->frameworkcode,
            items         => \@items
        }
    }
);
$record_processor->process($record);

# get biblionumbers stored in the cart
if(my $cart_list = $query->cookie("bib_list")){
    my @cart_list = split(/\//, $cart_list);
    if ( grep {$_ eq $biblionumber} @cart_list) {
        $template->param( incart => 1 );
    }
}

my $marcflavour = C4::Context->preference("marcflavour");
# some useful variables for enhanced content;
# in each case, we're grabbing the first value we find in
# the record and normalizing it
my $upc  = GetNormalizedUPC( $record, $marcflavour );
my $ean  = GetNormalizedEAN( $record, $marcflavour );
my $oclc = GetNormalizedOCLCNumber( $record, $marcflavour );
my $isbn = GetNormalizedISBN( undef, $record, $marcflavour );
my $content_identifier_exists;
if ( $isbn or $ean or $oclc or $upc ) {
    $content_identifier_exists = 1;
}
$template->param(
    normalized_upc            => $upc,
    normalized_ean            => $ean,
    normalized_oclc           => $oclc,
    normalized_isbn           => $isbn,
    content_identifier_exists => $content_identifier_exists,
);

#coping with subscriptions
my $subscriptionsnumber = CountSubscriptionFromBiblionumber($biblionumber);
my $dat                 = TransformMarcToKoha({ record => $record });

my @subscriptions       = SearchSubscriptions({ biblionumber => $biblionumber, orderby => 'title' });
my @subs;
foreach my $subscription (@subscriptions) {
    my %cell;
	my $serials_to_display;
    $cell{subscriptionid}    = $subscription->{subscriptionid};
    $cell{subscriptionnotes} = $subscription->{notes};
    $cell{branchcode}        = $subscription->{branchcode};

    #get the three latest serials.
	$serials_to_display = $subscription->{opacdisplaycount};
	$serials_to_display = C4::Context->preference('OPACSerialIssueDisplayCount') unless $serials_to_display;
	$cell{opacdisplaycount} = $serials_to_display;
    $cell{latestserials} =
      GetLatestSerials( $subscription->{subscriptionid}, $serials_to_display );
    push @subs, \%cell;
}

$template->param(
    subscriptions       => \@subs,
    subscriptionsnumber => $subscriptionsnumber,
);

my $res = GetISBDView({
    'record'    => $record,
    'template'  => 'opac',
    'framework' => $biblio->frameworkcode
});

# Count the number of items that allow holds at the 'All libraries' rule level
my $holdable_items = $biblio->items->filter_by_for_hold->count;

# If we have a patron we need to check their policies for holds in the loop below
# If we don't have a patron, then holdable items determines holdability
my $can_holds_be_placed = $patron ? 0 : $holdable_items;
if ($patron) {
    my $items = $biblio->items;
    while ( my $item = $items->next ) {
        $can_holds_be_placed = $can_holds_be_placed || IsAvailableForItemLevelRequest( $item, $patron, undef );
    }
}

$template->param(
    ReservableItems => $can_holds_be_placed,
    ISBD            => $res,
    biblio          => $biblio,
    borrowernumber  => $loggedinuser,
);

#Search for title in links
my $marccontrolnumber   = GetMarcControlnumber ($record, $marcflavour);
my $marcissns = GetMarcISSN ( $record, $marcflavour );
my $issn = $marcissns->[0] || '';

if (my $search_for_title = C4::Context->preference('OPACSearchForTitleIn')){
    $dat->{title} =~ s/\/+$//; # remove trailing slash
    $dat->{title} =~ s/\s+$//; # remove trailing space
    my $oclc_no =  Koha::Util::MARC::oclc_number( $record );
    $search_for_title = parametrized_url(
        $search_for_title,
        {
            TITLE         => $dat->{title},
            AUTHOR        => $dat->{author},
            ISBN          => $isbn,
            ISSN          => $issn,
            CONTROLNUMBER => $marccontrolnumber,
            BIBLIONUMBER  => $biblionumber,
            OCLC_NO       => $oclc_no,
        }
    );
    $template->param('OPACSearchForTitleIn' => $search_for_title);
}

if( C4::Context->preference('ArticleRequests') ) {
    my $itemtype = Koha::ItemTypes->find($biblio->itemtype);
    my $artreqpossible = $patron
        ? $biblio->can_article_request( $patron )
        : $itemtype
        ? $itemtype->may_article_request
        : q{};
    $template->param( artreqpossible => $artreqpossible );
}

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