#!/usr/bin/perl

# $Id$

#written 7/3/2002 by Finlay
#script to display reports


# 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., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307 USA

use strict;
use CGI;
use C4::Context;
use C4::Search;
use C4::Circulation::Circ2;
use C4::Output;
use HTML::Template;

# get all the data ....
my %env;
my $main='#cccc99';
my $secondary='#ffffcc';

my $input = new CGI;
my $itm = $input->param('itm');
my $bi = $input->param('bi');
my $bib = $input->param('bib');
my $branches = getbranches(\%env);

my $idata = itemdatanum($itm);
my $data = bibitemdata($bi);

my $homebranch = $branches->{$idata->{'homebranch'}}->{'branchname'};
my $holdingbranch = $branches->{$idata->{'holdingbranch'}}->{'branchname'};

my ($lastmove, $message) = lastmove($itm);

my $lastdate;
my $count;
if (not $lastmove) {
    $lastdate = $message;
    $count = issuessince($itm , 0);
} else {
    $lastdate = $lastmove->{'datearrived'};
    $count = issuessince($itm ,$lastdate);
}

# make the page ...
my $template = gettemplate("bookcount.tmpl");

my @branchloop;

foreach my $branchcode (keys %$branches) {
	my %linebranch;
    $linebranch{issues} = issuesat($itm, $branchcode);
    my $date = lastseenat($itm, $branchcode);
    $linebranch{seen} = slashdate($date);
	$linebranch{branchname}=$branches->{$branchcode}->{'branchname'};
	push(@branchloop,\%linebranch);
}

$template->param(	bib => $bib,
								title => $data->{'title'},
								author => $data->{'author'},
								barcode => $idata->{'barcode'},
								homebranch =>$homebranch,
								holdingbranch => $holdingbranch,
								lastdate =>  $lastdate,
								count =>  $count,
								branchloop => \@branchloop);

print "Content-Type: text/html\n\n", $template->output;

##############################################
# This stuff should probably go into C4::Search
# database includes
use DBI;

sub itemdatanum {
    my ($itemnumber)=@_;
    my $dbh = C4::Context->dbh;
    my $itm = $dbh->quote("$itemnumber");
    my $query = "select * from items where itemnumber=$itm";
    my $sth=$dbh->prepare($query);
    $sth->execute;
    my $data=$sth->fetchrow_hashref;
    $sth->finish;
    return($data);
}

sub lastmove {
      my ($itemnumber)=@_;
      my $dbh = C4::Context->dbh;
      my $var1 = $dbh->quote($itemnumber);
      my $sth =$dbh->prepare("select max(branchtransfers.datearrived) from branchtransfers where branchtransfers.itemnumber=$var1");
      $sth->execute;
      my ($date) = $sth->fetchrow_array;
      return(0, "Item has no branch transfers record") if not $date;
      my $var2 = $dbh->quote($date);
      $sth=$dbh->prepare("Select * from branchtransfers where branchtransfers.itemnumber=$var1 and branchtransfers.datearrived=$var2");
      $sth->execute;
      my ($data) = $sth->fetchrow_hashref;
      return(0, "Item has no branch transfers record") if not $data;
      $sth->finish;
      return($data,"");
 }

sub issuessince {
      my ($itemnumber, $date)=@_;
      my $dbh = C4::Context->dbh;
      my $itm = $dbh->quote($itemnumber);
      my $dat = $dbh->quote($date);
      my $sth=$dbh->prepare("Select count(*) from issues where issues.itemnumber=$itm and issues.timestamp > $dat");
      $sth->execute;
      my $count=$sth->fetchrow_hashref;
      $sth->finish;
      return($count->{'count(*)'});
}

sub issuesat {
      my ($itemnumber, $brcd)=@_;
      my $dbh = C4::Context->dbh;
      my $itm = $dbh->quote($itemnumber);
      my $brc = $dbh->quote($brcd);
      my $query = "Select count(*) from issues where itemnumber=$itm and branchcode = $brc";
      my $sth=$dbh->prepare($query);
      $sth->execute;
      my ($count)=$sth->fetchrow_array;
      $sth->finish;
      return($count);
}

sub lastseenat {
      my ($itemnumber, $brcd)=@_;
      my $dbh = C4::Context->dbh;
      my $itm = $dbh->quote($itemnumber);
      my $brc = $dbh->quote($brcd);
      my $query = "Select max(timestamp) from issues where itemnumber=$itm and branchcode = $brc";
      my $sth=$dbh->prepare($query);
      $sth->execute;
      my ($date1)=$sth->fetchrow_array;
      $sth->finish;
      $query = "Select max(datearrived) from branchtransfers where itemnumber=$itm and tobranch = $brc";
      # FIXME - There's already a $sth in this scope.
      my $sth=$dbh->prepare($query);
      $sth->execute;
      my ($date2)=$sth->fetchrow_array;
      $sth->finish;
      $date2 =~ s/-//g;
      $date2 =~ s/://g;
      $date2 =~ s/ //g;
      my $date;
      if ($date1 < $date2) {
	  $date = $date2;
      } else {
	  $date = $date1;
      }
      return($date);
}


#####################################################
# write date....
sub slashdate {
    my ($date) = @_;
    if (not $date) {
	return "never";
    }
    my ($yr, $mo, $da, $hr, $mi) = (substr($date, 0, 4), substr($date, 4, 2), substr($date, 6, 2), substr($date, 8, 2), substr($date, 10, 2));
    return "$hr:$mi  $da/$mo/$yr";
}
