#!/usr/bin/perl

# Copyright 2000-2003 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 <https://www.gnu.org/licenses>.

use Modern::Perl;
use C4::Koha qw( GetAuthorisedValues );
use CGI      qw ( -utf8 );
use HTML::Entities;
use C4::Biblio      qw( GetBiblioData GetFrameworkCode );
use C4::Acquisition qw( GetOrderFromItemnumber GetBasket GetInvoice );
use C4::Output      qw( output_and_exit output_html_with_http_headers );
use C4::Serials     qw( CountSubscriptionFromBiblionumber );
use C4::Search      qw( enabled_staff_search_views z3950_search_args );

use Koha::Acquisition::Booksellers;
use Koha::AuthorisedValues;
use Koha::Biblios;
use Koha::BiblioFrameworks;
use Koha::Controller::Catalogue;
use Koha::Items;
use Koha::Patrons;

my $query = CGI->new;

my ( $template, $loggedinuser, $cookie ) = Koha::Controller::Catalogue->init(
    {
        template_name => 'catalogue/moredetail.tt',
        query         => $query,
        type          => "intranet",
        flagsrequired => { catalogue => 1 },
    }
);

$template->param(
    updated_exclude_from_local_holds_priority => scalar( $query->param('updated_exclude_from_local_holds_priority') ) );

# get variables
my $biblionumber;
my $itemnumber;
if ( $query->param('itemnumber') && !$query->param('biblionumber') ) {
    $itemnumber = $query->param('itemnumber');
    my $item = Koha::Items->find($itemnumber);
    $biblionumber = $item->biblionumber;
} else {
    $biblionumber = $query->param('biblionumber');
}

$biblionumber = HTML::Entities::encode($biblionumber);
my $title = $query->param('title');
my $bi    = $query->param('bi');
$bi         = $biblionumber unless $bi;
$itemnumber = $query->param('itemnumber');
my $data           = &GetBiblioData($biblionumber);
my $dewey          = $data->{'dewey'};
my $showallitems   = $query->param('showallitems');
my $withdraw_error = $query->param('nowithdraw');

#coping with subscriptions
my $subscriptionsnumber = CountSubscriptionFromBiblionumber($biblionumber);

# FIXME Dewey is a string, not a number, & we should use a function
# $dewey =~ s/0+$//;
# if ($dewey eq "000.") { $dewey = "";};
# if ($dewey < 10){$dewey='00'.$dewey;}
# if ($dewey < 100 && $dewey > 10){$dewey='0'.$dewey;}
# if ($dewey <= 0){
#      $dewey='';
# }
# $dewey=~ s/\.$//;
# $data->{'dewey'}=$dewey;

my $biblio = Koha::Biblios->find($biblionumber);
my $record = $biblio ? $biblio->metadata->record : undef;

output_and_exit( $query, $cookie, $template, 'unknown_biblio' )
    unless $biblio && $record;

my $fw = $biblio->frameworkcode;
my $is_fast_add =
    $fw eq ''
    ? 0
    : Koha::BiblioFrameworks->find($fw)->is_fast_add;
my $all_items = $biblio->items->search_ordered;

my @items;
my $patron = Koha::Patrons->find($loggedinuser);
while ( my $item = $all_items->next ) {
    push @items, $item
        unless $item->itemlost
        && $patron->category->hidelostitems
        && !$showallitems;
}

my $hostrecords;
my $hostitems = $biblio->host_items;
if ( $hostitems->count ) {
    $hostrecords = 1;
    push @items, $hostitems->as_list;
}

my $totalcount  = $all_items->count;
my $showncount  = scalar @items;
my $hiddencount = $totalcount - $showncount;
$data->{'count'}       = $totalcount;
$data->{'showncount'}  = $showncount;
$data->{'hiddencount'} = $hiddencount;    # can be zero

my $ccodes =
    { map { $_->{authorised_value} => $_->{lib} }
        Koha::AuthorisedValues->get_descriptions_by_koha_field( { frameworkcode => $fw, kohafield => 'items.ccode' } )
    };
my $copynumbers = {
    map { $_->{authorised_value} => $_->{lib} } Koha::AuthorisedValues->get_descriptions_by_koha_field(
        { frameworkcode => $fw, kohafield => 'items.copynumber' }
    )
};

my $itemtypes = { map { $_->{itemtype} => $_ } @{ Koha::ItemTypes->search_with_localization->unblessed } };

$data->{'itemtypename'} = $itemtypes->{ $data->{'itemtype'} }->{'translated_description'}
    if $data->{itemtype} && exists $itemtypes->{ $data->{itemtype} };
foreach ( keys %{$data} ) {
    $template->param( "$_" => defined $data->{$_} ? $data->{$_} : '' );
}

if ($itemnumber) {
    @items = ( grep { $_->itemnumber == $itemnumber } @items );
}
my @item_data;
foreach my $item (@items) {

    my $item_info = $item->unblessed;
    $item_info->{object} = $item;
    $item_info->{itype}  = $itemtypes->{ $item->itype }->{'translated_description'}
        if exists $itemtypes->{ $item->itype };
    $item_info->{effective_itemtype} = $itemtypes->{ $item->effective_itemtype };
    $item_info->{'ccode'} = $ccodes->{ $item->ccode } if $ccodes && $item->ccode && exists $ccodes->{ $item->ccode };
    if ( defined $item->copynumber ) {
        $item_info->{'displaycopy'} = 1;
        if ( defined $copynumbers->{ $item_info->{'copynumber'} } ) {
            $item_info->{'copyvol'} = $copynumbers->{ $item_info->{'copynumber'} };
        } else {
            $item_info->{'copyvol'} = $item_info->{'copynumber'};
        }
    }

    # item has a host number if its biblio number does not match the current bib
    if ( $item->biblionumber ne $biblionumber ) {
        $item_info->{hostbiblionumber} = $item->biblionumber;
        $item_info->{hosttitle}        = $item->biblio->title;
    }

    # FIXME The acquisition code below could be improved using methods from Koha:: objects
    my $order = GetOrderFromItemnumber( $item->itemnumber );
    $item_info->{'basketno'}  = $order->{'basketno'};
    $item_info->{'orderdate'} = $order->{'entrydate'};
    if ( $item_info->{'basketno'} ) {
        my $basket     = GetBasket( $item_info->{'basketno'} );
        my $bookseller = Koha::Acquisition::Booksellers->find( $basket->{booksellerid} );
        $item_info->{'vendor'} = $bookseller->name;
    }
    $item_info->{'invoiceid'} = $order->{'invoiceid'};
    if ( $item_info->{invoiceid} ) {
        my $invoice = GetInvoice( $item_info->{invoiceid} );
        $item_info->{invoicenumber} = $invoice->{invoicenumber} if $invoice;
    }
    $item_info->{'datereceived'} = $order->{'datereceived'};

    if (   $item->notforloan
        || $item->itemtype->notforloan
        || $item->itemlost
        || $item->damaged
        || $item->withdrawn )
    {
        $item_info->{status_advisory} = 1;
    }

    # Add paidfor info
    if ( $item->itemlost ) {
        my $accountlines = Koha::Account::Lines->search(
            {
                itemnumber        => $item->itemnumber,
                debit_type_code   => 'LOST',
                status            => [ undef, { '<>' => 'RETURNED' } ],
                amountoutstanding => 0
            },
            {
                order_by => { '-desc' => 'date' },
                rows     => 1
            }
        );

        if ( my $accountline = $accountlines->next ) {
            my $payment_offsets = $accountline->debit_offsets(
                {
                    credit_id                 => { '!=' => undef },                        # it is not the debit itself
                    'credit.credit_type_code' => { '!=' => [ 'Writeoff', 'Forgiven' ] },
                },
                { join => 'credit', order_by => { '-desc' => 'created_on' } }
            );

            if ( $payment_offsets->count ) {
                my $patron         = $accountline->patron;
                my $payment_offset = $payment_offsets->next;
                $item_info->{paidfor} = { patron => $patron, created_on => $payment_offset->created_on };
            }
        }

        my $return_claim = $item->return_claim;
        $item_info->{has_return_claim} = 1 if $return_claim;
    }

    if ( C4::Context->preference("IndependentBranches") ) {

        #verifying rights
        my $userenv = C4::Context->userenv();
        unless ( C4::Context->IsSuperLibrarian() or ( $userenv->{'branch'} eq $item->homebranch ) ) {
            $item_info->{'nomod'} = 1;
        }
    }

    $item_info->{old_issues} = Koha::Old::Checkouts->search(
        { itemnumber => $item->itemnumber },
        {
            order_by => { '-desc' => 'returndate' },
            rows     => 3,
        }
    );

    $item_info->{nomod} = !$patron->can_edit_items_from( $item->homebranch );

    push @item_data, $item_info;
}

my $mss = Koha::MarcSubfieldStructures->search(
    {
        frameworkcode    => $fw, kohafield => 'items.itemlost',
        authorised_value => [ -and => { '!=' => undef }, { '!=' => '' } ]
    }
);
if ( $mss->count ) {
    $template->param( itemlostloop => GetAuthorisedValues( $mss->next->authorised_value ) );
}
$mss = Koha::MarcSubfieldStructures->search(
    {
        frameworkcode    => $fw, kohafield => 'items.damaged',
        authorised_value => [ -and => { '!=' => undef }, { '!=' => '' } ]
    }
);
if ( $mss->count ) {
    $template->param( itemdamagedloop => GetAuthorisedValues( $mss->next->authorised_value ) );
}
$mss = Koha::MarcSubfieldStructures->search(
    {
        frameworkcode    => $fw, kohafield => 'items.withdrawn',
        authorised_value => [ -and => { '!=' => undef }, { '!=' => '' } ]
    }
);
if ( $mss->count ) {
    $template->param( itemwithdrawnloop => GetAuthorisedValues( $mss->next->authorised_value ) );
}

$template->param(
    count               => $data->{'count'},
    subscriptionsnumber => $subscriptionsnumber,
    subscriptiontitle   => $data->{title},
    C4::Search::enabled_staff_search_views,
);

# get biblionumbers stored in the cart
my @cart_list;

if ( $query->cookie("intranet_bib_list") ) {
    my $cart_list = $query->cookie("intranet_bib_list");
    @cart_list = split( /\//, $cart_list );
    if ( grep { $_ eq $biblionumber } @cart_list ) {
        $template->param( incart => 1 );
    }
}

my $some_private_shelves = Koha::Virtualshelves->get_some_shelves(
    {
        borrowernumber => $loggedinuser,
        add_allowed    => 1,
        public         => 0,
    }
);
my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
    {
        borrowernumber => $loggedinuser,
        add_allowed    => 1,
        public         => 1,
    }
);

$template->param(
    add_to_some_private_shelves => $some_private_shelves,
    add_to_some_public_shelves  => $some_public_shelves,
);

$template->param(
    withdraw_error      => $withdraw_error,
    ITEM_DATA           => \@item_data,
    moredetailview      => 1,
    loggedinuser        => $loggedinuser,
    biblionumber        => $biblionumber,
    biblioitemnumber    => $bi,
    itemnumber          => $itemnumber,
    z3950_search_params => C4::Search::z3950_search_args( GetBiblioData($biblionumber) ),
    biblio              => $biblio,
    is_fast_add         => $is_fast_add,
);
$template->param( ONLY_ONE => 1 ) if ( $itemnumber && $showncount != @items );
$template->{'VARS'}->{'searchid'} = $query->param('searchid');

my $holds = $biblio->holds;
$template->param( holdcount => $holds->count );

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