#!/usr/bin/perl


# Copyright 2005 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 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.

=head1 NAME

lateorders.pl

=head1 DESCRIPTION

this script shows late orders for a specific supplier, branch and delay
given on input arg.

=head1 CGI PARAMETERS

=over 4

=item booksellerid
To know on which supplier this script have to display late order.

=item delay
To know the time boundary. Default value is 30 days.

=item branch
To know on which branch this script have to display late order.

=back

=cut

use Modern::Perl;
use CGI;
use C4::Bookseller qw( GetBooksellersWithLateOrders );
use C4::Auth;
use C4::Koha;
use C4::Output;
use C4::Context;
use C4::Acquisition;
use C4::Letters;
use C4::Branch; # GetBranches
use Koha::DateUtils;

my $input = new CGI;
my ($template, $loggedinuser, $cookie) = get_template_and_user({
	template_name => "acqui/lateorders.tmpl",
	query => $input,
	 type => "intranet",
	authnotrequired => 0,
	flagsrequired => {acquisition => 'order_receive'},
	debug => 1,
});

my $booksellerid = $input->param('booksellerid') || undef; # we don't want "" or 0
my $delay        = $input->param('delay');

# Get the "date from" param if !defined is today
my $estimateddeliverydatefrom = $input->param('estimateddeliverydatefrom');
my $estimateddeliverydateto   = $input->param('estimateddeliverydateto');

my $estimateddeliverydatefrom_dt =
  $estimateddeliverydatefrom
  ? dt_from_string($estimateddeliverydatefrom)
  : undef;

# Get the "date to" param. If it is not defined and $delay is not defined too, it is the today's date.
my $estimateddeliverydateto_dt = $estimateddeliverydateto
    ? dt_from_string($estimateddeliverydateto)
    : ( not defined $delay and not defined $estimateddeliverydatefrom)
        ? dt_from_string()
        : undef;

# Format the output of "date from" and "date to"
if ($estimateddeliverydatefrom_dt) {
    $estimateddeliverydatefrom = output_pref($estimateddeliverydatefrom_dt, undef, 1);
}
if ($estimateddeliverydateto_dt) {
    $estimateddeliverydateto = output_pref($estimateddeliverydateto_dt, undef, 1);
}

my $branch     = $input->param('branch');
my $op         = $input->param('op');

my @errors = ();
if ( $delay and not $delay =~ /^\d{1,3}$/ ) {
    push @errors, {delay_digits => 1, bad_delay => $delay};
}

if ($op and $op eq "send_alert"){
    my @ordernums = $input->param("claim_for");# FIXME: Fallback values?
    my $err;
    eval {
        $err = SendAlerts( 'claimacquisition', \@ordernums, $input->param("letter_code") );    # FIXME: Fallback value?
        if ( not ref $err or not exists $err->{error} ) {
            AddClaim ( $_ ) for @ordernums;
        }
    };
    if ( $@ ) {
        $template->param(error_claim => $@);
    } elsif ( ref $err and exists $err->{error} and $err->{error} eq "no_email" ) {
        $template->{VARS}->{'error_claim'} = "no_email";
    } else {
        $template->{VARS}->{'info_claim'} = 1;
    }
}

my @parameters = ( $delay, $branch );
push @parameters, $estimateddeliverydatefrom_dt
    ? $estimateddeliverydatefrom_dt->ymd()
    : undef;

push @parameters, $estimateddeliverydateto_dt
    ? $estimateddeliverydateto_dt->ymd()
    : undef;

my %supplierlist = GetBooksellersWithLateOrders(@parameters);

my (@sloopy);	# supplier loop
foreach (keys %supplierlist){
	push @sloopy, (($booksellerid and $booksellerid eq $_ )            ?
					{id=>$_, name=>$supplierlist{$_}, selected=>1} :
					{id=>$_, name=>$supplierlist{$_}} )            ;
}
$template->param(SUPPLIER_LOOP => \@sloopy);

$template->param(Supplier=>$supplierlist{$booksellerid}) if ($booksellerid);
$template->param(booksellerid=>$booksellerid) if ($booksellerid);

@parameters =
  ( $delay, $booksellerid, $branch );
if ($estimateddeliverydatefrom_dt) {
    push @parameters, $estimateddeliverydatefrom_dt->ymd();
}
else {
    push @parameters, undef;
}
if ($estimateddeliverydateto_dt) {
    push @parameters, $estimateddeliverydateto_dt->ymd();
}
my @lateorders = GetLateOrders( @parameters );

my $total;
foreach (@lateorders){
	$total += $_->{subtotal};
}

my @letters;
my $letters=GetLetters("claimacquisition");
foreach (keys %$letters){
	push @letters, {code=>$_,name=>$letters->{$_}};
}
$template->param(letters=>\@letters) if (@letters);

$template->param(ERROR_LOOP => \@errors) if (@errors);
$template->param(
	lateorders => \@lateorders,
	delay => $delay,
    estimateddeliverydatefrom => $estimateddeliverydatefrom,
    estimateddeliverydateto   => $estimateddeliverydateto,
	total => $total,
	intranetcolorstylesheet => C4::Context->preference("intranetcolorstylesheet"),
    DHTMLcalendar_dateformat => C4::Dates->DHTMLcalendar(),
);
output_html_with_http_headers $input, $cookie, $template->output;