#!/usr/bin/perl

#script to add an order into the system
#written 29/2/00 by chris@katipo.co.nz

# 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 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>.

=head1 NAME

addorder.pl

=head1 DESCRIPTION

this script allows to add an order.
It is called by :

=over

=item neworderempty.pl to add an order from an existing record or from nothing.

=item newordersuggestion.pl to add an order from an existing suggestion.

=back

=head1 CGI PARAMETERS

All of the cgi parameters below are related to the new order.

=over

=item C<ordernumber>
the number of this new order.

=item C<basketno>
the number of this new basket

=item C<booksellerid>
the bookseller the librarian has to pay.

=item C<existing>

=item C<title>
the title of the record ordered.

=item C<author>
the author of the record ordered.

=item C<copyrightdate>
the copyrightdate of the record ordered.

=item C<ISBN>
the ISBN of the record ordered.

=item C<format>

=item C<quantity>
the quantity to order.

=item C<listprice>
the price of this order.

=item C<uncertainprice>
uncertain price, can't close basket until prices of all orders are known.

=item C<branch>
the branch where this order will be received.

=item C<series>

=item C<notes>
Notes on this basket.

=item C<budget_id>
budget_id used to pay this order.

=item C<sort1> & C<sort2>

=item C<rrp>

=item C<ecost>

=item C<GST>

=item C<budget>

=item C<cost>

=item C<sub>

=item C<invoice>
the number of the invoice for this order.

=item C<publishercode>

=item C<suggestionid>
if it is an order from an existing suggestion : the id of this suggestion.

=item C<donation>

=back

=cut

use Modern::Perl;
use CGI qw ( -utf8 );
use JSON qw ( to_json encode_json );

use C4::Acquisition qw( FillWithDefaultValues ModOrderUsers );
use C4::Auth qw( get_template_and_user );
use C4::Barcodes;
use C4::Biblio qw( AddBiblio GetMarcFromKohaField TransformHtmlToXml TransformKohaToMarc );
use C4::Budgets qw( GetBudget GetBudgetSpent GetBudgetOrdered FieldsForCalculatingFundValues );
use C4::Items qw( AddItemFromMarc );
use C4::Log qw( logaction );
use C4::Output qw( output_html_with_http_headers );
use C4::Suggestions qw( ModSuggestion );
use Koha::Acquisition::Baskets;
use Koha::Acquisition::Currencies qw( get_active );
use Koha::Acquisition::Orders;
use Koha::AdditionalFields;
use Koha::DateUtils qw( dt_from_string );

### "-------------------- addorder.pl ----------"

# FIXME: This needs to do actual error checking and possibly return user to the same form,
# not just blindly call C4 functions and print a redirect.

my $input = CGI->new;

my $op = $input->param('op') // q{};

if ( $op eq 'cud-order' ) {
    my $use_ACQ_framework = $input->param('use_ACQ_framework');

    # Check if order total amount exceed allowed budget
    my $confirm_budget_exceeding = $input->param('confirm_budget_exceeding');
    unless ($confirm_budget_exceeding) {
        my $budget_id      = $input->param('budget_id');
        my $total          = $input->param('total');
        my $budget         = GetBudget($budget_id);
        my $budget_spent   = GetBudgetSpent($budget_id);
        my $budget_ordered = GetBudgetOrdered($budget_id);

        my $ordernumber = $input->param('ordernumber');
        if ($ordernumber) {

            # modifying an existing order so remove order price from $budget_ordered
            my $order = Koha::Acquisition::Orders->find($ordernumber);

            # get correct unitprice and ecost fields
            my ( $unitprice_field, $ecost_field ) = FieldsForCalculatingFundValues();
            $budget_ordered = $budget_ordered - ( $order->$ecost_field * $order->quantity );
        }

        my $budget_used        = $budget_spent + $budget_ordered;
        my $budget_remaining   = $budget->{budget_amount} - $budget_used;
        my $budget_encumbrance = $budget->{budget_amount} * $budget->{budget_encumb} / 100;
        my $budget_expenditure = $budget->{budget_expend};

        if (   $total > $budget_remaining
            || ( ( $budget_encumbrance + 0 ) && ( $budget_used + $total ) > $budget_encumbrance )
            || ( ( $budget_expenditure + 0 ) && ( $budget_used + $total ) > $budget_expenditure ) )
        {
            my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
                {
                    template_name => "acqui/addorder.tt",
                    query         => $input,
                    type          => "intranet",
                    flagsrequired => { acquisition => 'order_manage' },
                }
            );

            my $url = $input->referer();
            unless ( defined $url ) {
                my $basketno = $input->param('basketno');
                $url = "/cgi-bin/koha/acqui/basket.pl?basketno=$basketno";
            }

            my $vars = $input->Vars;
            my @vars_loop;
            foreach ( keys %$vars ) {
                push @vars_loop, {
                    name   => $_,
                    values => [ $input->multi_param($_) ],
                };
            }

            if (   ( $budget_encumbrance + 0 )
                && ( $budget_used + $total ) > $budget_encumbrance
                && $total <= $budget_remaining )
            {
                $template->param(
                    encumbrance_exceeded => 1,
                    encumbrance          => sprintf( "%.2f", $budget->{'budget_encumb'} ),
                );
            }
            if (   ( $budget_expenditure + 0 )
                && ( $budget_used + $total ) > $budget_expenditure
                && $total <= $budget_remaining )
            {
                my $currency = Koha::Acquisition::Currencies->get_active;
                $template->param(
                    expenditure_exceeded => 1,
                    expenditure          => sprintf( "%.2f", $budget_expenditure ),
                    currency             => ($currency) ? $currency->symbol : '',
                );
            }
            if ( $total > $budget_remaining ) {
                $template->param( budget_exceeded => 1 );
            }

            $template->param(
                not_enough_budget => 1,
                referer           => $url,
                vars_loop         => \@vars_loop,
            );
            output_html_with_http_headers $input, $cookie, $template->output;
            exit;
        }
    }

    # get_template_and_user used only to check auth & get user id
    my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
        {
            template_name => "acqui/booksellers.tt",
            query         => $input,
            type          => "intranet",
            flagsrequired => { acquisition => 'order_manage' },
        }
    );

    # get CGI parameters
    my $orderinfo = {
        ordernumber             => scalar $input->param('ordernumber'),
        basketno                => scalar $input->param('basketno'),
        biblionumber            => scalar $input->param('biblionumber'),
        invoiceid               => scalar $input->param('invoiceid'),
        quantity                => scalar $input->param('quantity'),
        budget_id               => scalar $input->param('budget_id'),
        currency                => scalar $input->param('currency'),
        listprice               => scalar $input->param('listprice'),
        uncertainprice          => scalar $input->param('uncertainprice'),
        tax_rate_on_ordering    => scalar $input->param('tax_rate'),
        discount                => scalar $input->param('discount'),
        rrp                     => scalar $input->param('rrp'),
        replacementprice        => scalar $input->param('replacementprice'),
        ecost                   => scalar $input->param('ecost'),
        unitprice               => scalar $input->param('unitprice'),
        order_internalnote      => scalar $input->param('order_internalnote'),
        order_vendornote        => scalar $input->param('order_vendornote'),
        sort1                   => scalar $input->param('sort1'),
        sort2                   => scalar $input->param('sort2'),
        subscriptionid          => scalar $input->param('subscriptionid'),
        estimated_delivery_date => scalar $input->param('estimated_delivery_date'),
    };

    $orderinfo->{uncertainprice} ||= 0;
    $orderinfo->{subscriptionid} ||= undef;

    my $user     = $input->remote_user;
    my $basketno = $$orderinfo{basketno};
    my $basket   = Koha::Acquisition::Baskets->find($basketno);

    # Order related fields we're going to log
    my @log_order_fields = (
        'quantity',
        'listprice',
        'unitprice',
        'unitprice_tax_excluded',
        'unitprice_tax_included',
        'rrp',
        'replacementprice',
        'rrp_tax_excluded',
        'rrp_tax_included',
        'ecost',
        'ecost_tax_excluded',
        'ecost_tax_included',
        'tax_rate_on_ordering'
    );

    # create, modify or delete biblio
    # create if $quantity>0 and $existing='no'
    # modify if $quantity>0 and $existing='yes'
    if ( $basket->{is_standing} || $orderinfo->{quantity} ne '0' ) {

        #TODO:check to see if biblio exists
        unless ( $$orderinfo{biblionumber} ) {

            my $record;
            if ($use_ACQ_framework) {
                my @tags         = $input->multi_param('bib_tag');
                my @subfields    = $input->multi_param('bib_subfield');
                my @field_values = $input->multi_param('bib_field_value');
                my $xml          = TransformHtmlToXml( \@tags, \@subfields, \@field_values );
                $record = MARC::Record::new_from_xml( $xml, 'UTF-8' );
            } else {

                #if it doesn't create it
                $record = TransformKohaToMarc(
                    {
                        "biblio.title"                 => $input->param('title')            || '',
                        "biblio.author"                => $input->param('author')           || '',
                        "biblio.seriestitle"           => $input->param('series')           || '',
                        "biblioitems.isbn"             => $input->param('isbn')             || '',
                        "biblioitems.ean"              => $input->param('ean')              || '',
                        "biblioitems.publishercode"    => $input->param('publishercode')    || '',
                        "biblioitems.publicationyear"  => $input->param('publicationyear')  || '',
                        "biblio.copyrightdate"         => $input->param('publicationyear')  || '',
                        "biblioitems.itemtype"         => $input->param('itemtype')         || '',
                        "biblioitems.editionstatement" => $input->param('editionstatement') || '',
                    }
                );
            }
            C4::Acquisition::FillWithDefaultValues($record);

            # create the record in catalogue, with framework ''
            my ( $biblionumber, $bibitemnum ) = AddBiblio( $record, '' );

            $orderinfo->{biblionumber} = $biblionumber;
        }

        # change suggestion status if applicable
        if ( my $suggestionid = $input->param('suggestionid') ) {
            ModSuggestion(
                {
                    suggestionid => $suggestionid,
                    biblionumber => $orderinfo->{biblionumber},
                    STATUS       => 'ORDERED',
                }
            );
        }

        $orderinfo->{unitprice} = $orderinfo->{ecost}
            if not defined $orderinfo->{unitprice}
            or $orderinfo->{unitprice} eq '';

        my $order;
        my $log_action_name;

        if ( $orderinfo->{ordernumber} ) {
            $order = Koha::Acquisition::Orders->find( $orderinfo->{ordernumber} );
            $order->set($orderinfo);
            $log_action_name = 'MODIFY_ORDER';
        } else {
            $order           = Koha::Acquisition::Order->new($orderinfo);
            $log_action_name = 'CREATE_ORDER';
        }
        $order->populate_with_prices_for_ordering();
        $order->store;

        # Log the order creation
        if ( C4::Context->preference("AcquisitionLog") ) {
            my $infos = {};
            foreach my $field (@log_order_fields) {
                $infos->{$field} = $order->$field;
            }
            logaction(
                'ACQUISITIONS',
                $log_action_name,
                $order->ordernumber,
                encode_json($infos)
            );
        }
        my $order_users_ids = $input->param('users_ids');
        my @order_users     = split( /:/, $order_users_ids );
        ModOrderUsers( $order->ordernumber, @order_users );

        # Retrieve and save additional fields values
        my @additional_fields = Koha::AdditionalFields->search( { tablename => 'aqorders' } )->as_list;
        my @additional_field_values;
        foreach my $af (@additional_fields) {
            my $id    = $af->id;
            my $value = $input->param("additional_field_$id");
            push @additional_field_values, {
                id    => $id,
                value => $value,
            };
        }
        $order->set_additional_fields( \@additional_field_values );

        # now, add items if applicable
        if ( $basket->effective_create_items eq 'ordering' ) {

            my @tags         = $input->multi_param('tag');
            my @subfields    = $input->multi_param('subfield');
            my @field_values = $input->multi_param('field_value');
            my @serials      = $input->multi_param('serial');
            my @itemid       = $input->multi_param('itemid');

            #Rebuilding ALL the data for items into a hash
            # parting them on $itemid.

            my %itemhash;
            my $countdistinct;
            my $range = scalar(@itemid);
            for ( my $i = 0 ; $i < $range ; $i++ ) {
                unless ( $itemhash{ $itemid[$i] } ) {
                    $countdistinct++;
                }
                push @{ $itemhash{ $itemid[$i] }->{'tags'} },         $tags[$i];
                push @{ $itemhash{ $itemid[$i] }->{'subfields'} },    $subfields[$i];
                push @{ $itemhash{ $itemid[$i] }->{'field_values'} }, $field_values[$i];
            }
            foreach my $item ( keys %itemhash ) {
                my $xml = TransformHtmlToXml(
                    $itemhash{$item}->{'tags'},
                    $itemhash{$item}->{'subfields'},
                    $itemhash{$item}->{'field_values'},
                    undef,
                    undef,
                    'ITEM'
                );
                my $record = MARC::Record::new_from_xml( $xml, 'UTF-8' );
                my ( $barcodefield, $barcodesubfield ) = GetMarcFromKohaField('items.barcode');
                next unless ( defined $barcodefield && defined $barcodesubfield );
                my $barcode = $record->subfield( $barcodefield, $barcodesubfield ) || '';
                my $aBpref  = C4::Context->preference('autoBarcode');
                if ( $barcode eq '' && $aBpref ne 'OFF' ) {
                    my $barcodeobj;
                    if ( $aBpref eq 'hbyymmincr' ) {
                        my ( $homebranchfield, $homebranchsubfield ) = GetMarcFromKohaField('items.homebranch');
                        my $homebranch = $record->subfield( $homebranchfield, $homebranchsubfield );
                        $barcodeobj = C4::Barcodes->new( $aBpref, $homebranch );
                    } else {
                        $barcodeobj = C4::Barcodes->new($aBpref);
                    }
                    $barcode = $barcodeobj->value();
                    $record->field($barcodefield)->delete_subfield( code => $barcodesubfield );
                    $record->field($barcodefield)->add_subfields( $barcodesubfield => $barcode );
                }
                my ( $biblionumber, $bibitemnum, $itemnumber ) = AddItemFromMarc( $record, $$orderinfo{biblionumber} );
                $order->add_item($itemnumber);
            }
        }

    }

    if ( C4::Context->preference("AcquisitionLog") && $basketno ) {
        my $modified = Koha::Acquisition::Baskets->find($basketno);
        logaction(
            'ACQUISITIONS',
            'MODIFY_BASKET',
            $basketno,
            to_json( $modified->unblessed )
        );
    }

    my $booksellerid = $$orderinfo{booksellerid};
    if ( my $import_batch_id = $input->param('import_batch_id') ) {
        print $input->redirect(
            "/cgi-bin/koha/acqui/addorderiso2709.pl?import_batch_id=$import_batch_id&basketno=$basketno&booksellerid=$booksellerid"
        );
    } elsif ( defined $orderinfo->{invoiceid} ) {
        print $input->redirect( "/cgi-bin/koha/acqui/parcel.pl?invoiceid=" . $orderinfo->{invoiceid} );
    } else {
        print $input->redirect("/cgi-bin/koha/acqui/basket.pl?basketno=$basketno");
    }

} else {
    my $basketno = $input->param('basketno');
    print $input->redirect("/cgi-bin/koha/acqui/basket.pl?basketno=$basketno");
    exit;
}