#!/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.

# Modification by D.Ulm, actually works (as long as indep. branches not turned on)
#		Someone let me know what indep. branches is supposed to do and I'll make that part work too
#
# 		The reserve pull lists *works* as long as not for indepencdant branches, I can fix!

use strict;
#use warnings; FIXME - Bug 2505
use C4::Context;
use C4::Output;
use CGI;
use C4::Auth;
use C4::Dates qw/format_date format_date_in_iso/;
use C4::Debug;
use Date::Calc qw/Today Add_Delta_YMD/;

my $input = new CGI;
my $order = $input->param('order');
my $startdate=$input->param('from');
my $enddate=$input->param('to');
my $run_report=$input->param('run_report');
my $report_page=$input->param('report_page');

my $theme = $input->param('theme');    # only used if allowthemeoverride is set

my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
    {
        template_name   => "circ/pendingreserves.tmpl",
        query           => $input,
        type            => "intranet",
        authnotrequired => 0,
        flagsrequired   => { circulate => "circulate_remaining_permissions" },
        debug           => 1,
    }
);

my $duedate;
my $borrowernumber;
my $itemnum;
my $data1;
my $data2;
my $data3;
my $name;
my $phone;
my $email;
my $biblionumber;
my $title;
my $author;

my ( $year, $month, $day ) = Today();
my $todaysdate     = sprintf("%-04.4d-%-02.2d-%02.2d", $year, $month, $day);
my $yesterdaysdate = sprintf("%-04.4d-%-02.2d-%02.2d", Add_Delta_YMD($year, $month, $day,   0, 0, -1));
#changed from delivered range of 10 years-yesterday to 2 days ago-today
# Find two days ago for the default shelf pull start and end dates
my $pastdate       = sprintf("%-04.4d-%-02.2d-%02.2d", Add_Delta_YMD($year, $month, $day, 0, 0, -2));

#		Predefine the start and end dates if they are not already defined
$startdate =~ s/^\s+//;
$startdate =~ s/\s+$//;
$enddate =~ s/^\s+//;
$enddate =~ s/\s+$//;
#		Check if null, should string match, if so set start and end date to yesterday
if (!defined($startdate) or $startdate eq "") {
	$startdate = format_date($pastdate);
}
if (!defined($enddate) or $enddate eq "") {
	$enddate = format_date($todaysdate);
}


my @reservedata;
my ($prev_results, $next_results, $next_or_previous) = (0,0,0);
if ( $run_report ) {
    my $dbh    = C4::Context->dbh;
    my ($sqlorderby, $sqldatewhere, $sqllimitoffset) = ("","","");
    $debug and warn format_date_in_iso($startdate) . "\n" . format_date_in_iso($enddate);
    my @query_params = ();
    if ($startdate) {
        $sqldatewhere .= " AND reservedate >= ?";
        push @query_params, format_date_in_iso($startdate);
    }
    if ($enddate) {
        $sqldatewhere .= " AND reservedate <= ?";
        push @query_params, format_date_in_iso($enddate);
    }

    $sqllimitoffset = " LIMIT 251";
    if ($report_page) {
        $sqllimitoffset  .= " OFFSET=?";
        push @query_params, ($report_page * 250);
    }

    if ($order eq "biblio") {
        $sqlorderby = " ORDER BY biblio.title ";
    } elsif ($order eq "itype") {
        $sqlorderby = " ORDER BY l_itype, location, l_itemcallnumber ";
    } elsif ($order eq "location") {
        $sqlorderby = " ORDER BY location, l_itemcallnumber, holdingbranch ";
    } elsif ($order eq "date") {
        $sqlorderby = " ORDER BY l_reservedate, location, l_itemcallnumber ";
    } elsif ($order eq "library") {
        $sqlorderby = " ORDER BY holdingbranch, l_itemcallnumber, location ";
    } elsif ($order eq "call") {
        $sqlorderby = " ORDER BY l_itemcallnumber, holdingbranch, location ";    
    } else {
        $sqlorderby = " ORDER BY biblio.title ";
    }
    my $strsth =
    "SELECT min(reservedate) as l_reservedate,
            reserves.borrowernumber as borrowernumber,
            GROUP_CONCAT(DISTINCT items.holdingbranch 
                    ORDER BY items.itemnumber SEPARATOR '<br/>') l_holdingbranch,
            reserves.biblionumber,
            reserves.branchcode,
            GROUP_CONCAT(DISTINCT reserves.branchcode 
                    ORDER BY items.itemnumber SEPARATOR ', ') l_branch,
            items.holdingbranch as branch,
            GROUP_CONCAT(DISTINCT items.itype 
                    ORDER BY items.itemnumber SEPARATOR '<br/>') l_itype,
            GROUP_CONCAT(DISTINCT items.location 
                    ORDER BY items.itemnumber SEPARATOR '<br/>') l_location,
            GROUP_CONCAT(DISTINCT items.itemcallnumber 
                    ORDER BY items.itemnumber SEPARATOR '<br/>') l_itemcallnumber,
            GROUP_CONCAT(DISTINCT items.enumchron
                    ORDER BY items.itemnumber SEPARATOR '<br/>') l_enumchron,
            GROUP_CONCAT(DISTINCT items.copynumber
                    ORDER BY items.itemnumber SEPARATOR '<br/>') l_copynumber,
            items.itemnumber,
            notes,
            notificationdate,
            reminderdate,
            max(priority) as priority,
            reserves.found,
            biblio.title,
            biblio.author,
            count(DISTINCT items.itemnumber) as icount,
            count(DISTINCT reserves.borrowernumber) as rcount
    FROM  reserves
        LEFT JOIN items ON items.biblionumber=reserves.biblionumber 
        LEFT JOIN biblio ON reserves.biblionumber=biblio.biblionumber
        LEFT JOIN branchtransfers ON items.itemnumber=branchtransfers.itemnumber
        LEFT JOIN issues ON items.itemnumber=issues.itemnumber
    WHERE
    reserves.found IS NULL
    $sqldatewhere
    AND (reserves.itemnumber IS NULL OR reserves.itemnumber = items.itemnumber)
    AND items.itemnumber NOT IN (SELECT itemnumber FROM branchtransfers where datearrived IS NULL)
    AND issues.itemnumber IS NULL
    AND reserves.priority <> 0 
    AND notforloan = 0 AND damaged = 0 AND itemlost = 0 AND wthdrawn = 0
    ";
    # GROUP BY reserves.biblionumber allows only items that are not checked out, else multiples occur when 
    #    multiple patrons have a hold on an item


    if (C4::Context->preference('IndependantBranches')){
        $strsth .= " AND items.holdingbranch=? ";
        push @query_params, C4::Context->userenv->{'branch'};
    }
    $strsth .= " GROUP BY reserves.biblionumber " . $sqlorderby;

    my $sth = $dbh->prepare($strsth);
    $sth->execute(@query_params);

    my $previous;
    my $this;
    while ( my $data = $sth->fetchrow_hashref ) {
        $this=$data->{biblionumber}.":".$data->{borrowernumber};
        my @itemlist;
        push(
            @reservedata,
            {
                reservedate      => format_date( $data->{l_reservedate} ),
                priority         => $data->{priority},
                name             => $data->{l_patron},
                title            => $data->{title},
                author           => $data->{author},
                borrowernumber   => $data->{borrowernumber},
                itemnum          => $data->{itemnumber},
                phone            => $data->{phone},
                email            => $data->{email},
                biblionumber     => $data->{biblionumber},
                statusw          => ( $data->{found} eq "W" ),
                statusf          => ( $data->{found} eq "F" ),
                holdingbranch    => $data->{l_holdingbranch},
                branch           => $data->{l_branch},
                itemcallnumber   => $data->{l_itemcallnumber},
                enumchron        => $data->{l_enumchron},
		copyno           => $data->{l_copynumber},
                notes            => $data->{notes},
                notificationdate => $data->{notificationdate},
                reminderdate     => $data->{reminderdate},
                count				  => $data->{icount},
                rcount			  => $data->{rcount},
                pullcount		  => $data->{icount} <= $data->{rcount} ? $data->{icount} : $data->{rcount},
                itype				  => $data->{l_itype},
                location			  => $data->{l_location}
            }
        );
        $previous=$this;
    }

    $sth->finish;

    # Next Page?
    if ($report_page > 0) {
        $prev_results = $report_page  - 1;
    }
    if ( scalar(@reservedata) > 250 ) {
        $next_results = $report_page + 1;
        pop(@reservedata); # .. we retrieved 251 results
    }
    if ($prev_results || $next_results) {
        $next_or_previous = 1;
    }

    # *** I doubt any of this is needed now with the above fixes *** -d.u.

    #$strsth=~ s/AND reserves.itemnumber is NULL/AND reserves.itemnumber is NOT NULL/;
    #$strsth=~ s/LEFT JOIN items ON items.biblionumber=reserves.biblionumber/LEFT JOIN items ON items.biblionumber=reserves.itemnumber/;
    #$sth = $dbh->prepare($strsth);
    #if (C4::Context->preference('IndependantBranches')){
    #       $sth->execute(C4::Context->userenv->{'branch'});
    #}
    #else {
    #       $sth->execute();
    #}
    #while ( my $data = $sth->fetchrow_hashref ) {
    #    $this=$data->{biblionumber}.":".$data->{borrowernumber};
    #    my @itemlist;
    #    push(
    #        @reservedata,
    #        {
    #            reservedate      => format_date( $data->{l_reservedate} ),
    #            priority         => $data->{priority},
    #            name             => $data->{l_patron},
    #            title            => $data->{title},
    #            author           => $data->{author},
    #            borrowernumber   => $data->{borrowernumber},
    #            itemnum          => $data->{itemnumber},
    #            phone            => $data->{phone},
    #            email            => $data->{email},
    #            biblionumber     => $data->{biblionumber},
    #            statusw          => ( $data->{found} eq "W" ),
    #            statusf          => ( $data->{found} eq "F" ),
    #            holdingbranch    => $data->{l_holdingbranch},
    #            branch           => $data->{l_branch},
    #            itemcallnumber   => $data->{l_itemcallnumber},
    #            notes            => $data->{notes},
    #            notificationdate => $data->{notificationdate},
    #            reminderdate     => $data->{reminderdate},
    #            count				  => $data->{icount},
    #            rcount			  => $data->{rcount},
    #            pullcount		  => $data->{icount} <= $data->{rcount} ? $data->{icount} : $data->{rcount},
    #            itype				  => $data->{l_itype},
    #            location			  => $data->{l_location},
    #            thisitemonly     => 1,
    # 
    #        }
    #    );
    #    $previous=$this;
    #}
    #$sth->finish;
}

$template->param(
    todaysdate      	=> format_date($todaysdate),
    from                => $startdate,
    to              	=> $enddate,
    run_report          => $run_report,
    report_page         => $report_page,
    prev_results        => $prev_results,
    next_results        => $next_results,
    next_or_previous    => $next_or_previous,
    reserveloop     	=> \@reservedata,
    "BiblioDefaultView".C4::Context->preference("BiblioDefaultView") => 1,
    DHTMLcalendar_dateformat =>  C4::Dates->DHTMLcalendar(),
	dateformat    => C4::Context->preference("dateformat"),
);

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