#!/usr/bin/perl


# Copyright 2000-2002 Katipo Communications
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

use strict;
use C4::Auth;
use CGI;
use C4::Context;
use C4::Search;
use C4::Output;
use C4::Koha;
use C4::Branch; # GetBranches
=head1

=cut

sub set_parameters {
    my ($template) = @_;
    my $userbranch = '';
    if (C4::Context->userenv && C4::Context->userenv->{'branch'}) {
        $userbranch = C4::Context->userenv->{'branch'};
    }
    $template->param( branchloop => GetBranchesLoop($userbranch) );
    return $template;
}

sub calculate {
	my ($parameters) = @_;
	my @results =();
	my $branch = @$parameters[0];
	my $dbh = C4::Context->dbh;
	my $sth;
	if ($branch) {
		if (C4::Context->preference('item-level_itypes')) {
		$sth = $dbh->prepare("
        SELECT description, items.itype as itemtype, COUNT(*) AS total 
			FROM itemtypes,items         
		WHERE items.itype=itemtypes.itemtype         
		AND items.holdingbranch=?            
		GROUP BY items.itype
		ORDER BY itemtypes.description");

		}
		else {
		$sth = $dbh->prepare("
		SELECT description, biblioitems.itemtype, COUNT(*) AS total 
			FROM itemtypes, biblioitems, items 
		WHERE biblioitems.itemtype=itemtypes.itemtype 
		AND items.biblioitemnumber=biblioitems.biblioitemnumber
		AND items.holdingbranch=?
			GROUP BY  biblioitems.itemtype
			ORDER BY itemtypes.description");
		}
		$sth->execute($branch);
	} else {
		if (C4::Context->preference('item-level_itypes')) {
		$sth = $dbh->prepare("
		SELECT description,items.itype AS itemtype, COUNT(*) AS total 
			FROM itemtypes,items
		WHERE items.itype=itemtypes.itemtype
			GROUP BY items.itype
			ORDER BY itemtypes.description");
		}
		else {
		$sth = $dbh->prepare("SELECT description, biblioitems.itemtype, COUNT(*) AS total
			FROM itemtypes, biblioitems,items 
		WHERE biblioitems.itemtype=itemtypes.itemtype 
		AND biblioitems.biblioitemnumber = items.biblioitemnumber
			GROUP BY biblioitems.itemtype
			ORDER BY itemtypes.description");
		}
		$sth->execute;
	}
	my ($description,$biblioitems,$total);
	my $grantotal = 0;
	my $count = 0;
	while (($description,$biblioitems,$total) = $sth->fetchrow) {
		my %line;
		if($count % 2){
			$line{toggle} = 1;
			} else {
				$line{toggle} = 0;
			}
		$line{itemtype} = $description;
		$line{count} = $total;
		$grantotal += $total;
		push @results,\%line;
		$count ++;
	}
	my @mainloop;
	my %globalline;
	$globalline{loopitemtype} = \@results;
	$globalline{total} = $grantotal;
	$globalline{branch} = $branch;
	$globalline{branchname} = GetBranchName($branch);
	push @mainloop,\%globalline;
	return \@mainloop;
}

1;