#!/usr/bin/perl

# $Id: updateitem.pl,v 1.9.2.1.2.4 2006/10/05 18:36:50 kados Exp $
# Copyright 2006 LibLime
#
# 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::Context;
use C4::Biblio;
use C4::Items;
use C4::Output;
use C4::Circulation;
use C4::Reserves;

my $cgi= new CGI;

checkauth($cgi, 0, {circulate => 'circulate_remaining_permissions'}, 'intranet');

my $biblionumber=$cgi->param('biblionumber');
my $itemnumber=$cgi->param('itemnumber');
my $biblioitemnumber=$cgi->param('biblioitemnumber');
my $itemlost=$cgi->param('itemlost');
my $itemnotes=$cgi->param('itemnotes');
my $itemnotes_nonpublic=$cgi->param('itemnotes_nonpublic');
my $withdrawn=$cgi->param('withdrawn');
my $damaged=$cgi->param('damaged');

my $confirm=$cgi->param('confirm');
my $dbh = C4::Context->dbh;

# get the rest of this item's information
my $item_data_hashref = GetItem($itemnumber, undef);

# make sure item statuses are set to 0 if empty or NULL
for ($damaged,$itemlost,$withdrawn) {
    if (!$_ or $_ eq "") {
        $_ = 0;
    }
}

# modify MARC item if input differs from items table.
my $item_changes = {};
if (defined $itemnotes_nonpublic) { # i.e., itemnotes_nonpublic parameter passed from form
    checkauth($cgi, 0, {editcatalogue => 'edit_items'}, 'intranet');
    if ((not defined  $item_data_hashref->{'itemnotes_nonpublic'}) or $itemnotes_nonpublic ne $item_data_hashref->{'itemnotes_nonpublic'}) {
        $item_changes->{'itemnotes_nonpublic'} = $itemnotes_nonpublic;
    }
}
elsif (defined $itemnotes) { # i.e., itemnotes parameter passed from form
    checkauth($cgi, 0, {editcatalogue => 'edit_items'}, 'intranet');
    if ((not defined  $item_data_hashref->{'itemnotes'}) or $itemnotes ne $item_data_hashref->{'itemnotes'}) {
        $item_changes->{'itemnotes'} = $itemnotes;
    }
} elsif ($itemlost ne $item_data_hashref->{'itemlost'}) {
    $item_changes->{'itemlost'} = $itemlost;
} elsif ($withdrawn ne $item_data_hashref->{'withdrawn'}) {
    $item_changes->{'withdrawn'} = $withdrawn;
} elsif ($damaged ne $item_data_hashref->{'damaged'}) {
    $item_changes->{'damaged'} = $damaged;
} else {
    #nothings changed, so do nothing.
    print $cgi->redirect("moredetail.pl?biblionumber=$biblionumber&itemnumber=$itemnumber#item$itemnumber");
	exit;
}

ModItem($item_changes, $biblionumber, $itemnumber);

LostItem($itemnumber, 'moredetail') if $itemlost;

print $cgi->redirect("moredetail.pl?biblionumber=$biblionumber&itemnumber=$itemnumber#item$itemnumber");