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package SL::Controller::DeliveryPlan;

use strict;
use parent qw(SL::Controller::Base);

use Clone qw(clone);
use SL::DB::OrderItem;
use SL::Controller::Helper::GetModels;
use SL::Controller::Helper::ReportGenerator;
use SL::Locale::String;

use Rose::Object::MakeMethods::Generic (
scalar => [ qw(db_args flat_filter) ],
'scalar --get_set_init' => [ qw(models all_edit_right) ],
);

__PACKAGE__->run_before(sub { $::auth->assert('delivery_plan'); });

my %sort_columns = (
reqdate => t8('Reqdate'),
description => t8('Description'),
partnumber => t8('Part Number'),
qty => t8('Qty'),
shipped_qty => t8('shipped'),
not_shipped_qty => t8('not shipped'),
ordnumber => t8('Order'),
customer => t8('Customer'),
);

sub action_list {
my ($self) = @_;

$self->make_filter_summary;
$self->prepare_report;

my $orderitems = $self->models->get;

$self->report_generator_list_objects(report => $self->{report}, objects => $orderitems);
}

# private functions
#
sub prepare_report {
my ($self) = @_;

my $report = SL::ReportGenerator->new(\%::myconfig, $::form);
$self->{report} = $report;

my @columns = qw(reqdate customer ordnumber partnumber description qty shipped_qty not_shipped_qty);
my @sortable = qw(reqdate customer ordnumber partnumber description);

my %column_defs = (
reqdate => { sub => sub { $_[0]->reqdate_as_date || $_[0]->order->reqdate_as_date } },
description => { sub => sub { $_[0]->description },
obj_link => sub { $self->link_to($_[0]->part) } },
partnumber => { sub => sub { $_[0]->part->partnumber },
obj_link => sub { $self->link_to($_[0]->part) } },
qty => { sub => sub { $_[0]->qty_as_number . ' ' . $_[0]->unit } },
shipped_qty => { sub => sub { $::form->format_amount(\%::myconfig, $_[0]->shipped_qty, 2) . ' ' . $_[0]->unit } },
not_shipped_qty => { sub => sub { $::form->format_amount(\%::myconfig, $_[0]->qty - $_[0]->shipped_qty, 2) . ' ' . $_[0]->unit } },
ordnumber => { sub => sub { $_[0]->order->ordnumber },
obj_link => sub { $self->link_to($_[0]->order) } },
customer => { sub => sub { $_[0]->order->customer->name },
obj_link => sub { $self->link_to($_[0]->order->customer) } },
);

$column_defs{$_}->{text} = $sort_columns{$_} for keys %column_defs;

$report->set_options(
std_column_visibility => 1,
controller_class => 'DeliveryPlan',
output_format => 'HTML',
top_info_text => $::locale->text('Delivery Plan for currently outstanding sales orders'),
title => $::locale->text('Delivery Plan'),
allow_pdf_export => 1,
allow_csv_export => 1,
);
$report->set_columns(%column_defs);
$report->set_column_order(@columns);
$report->set_export_options(qw(list filter));
$report->set_options_from_form;
$self->models->disable_plugin('paginated') if $report->{options}{output_format} =~ /^(pdf|csv)$/i;
$self->models->finalize; # for filter laundering
$self->models->set_report_generator_sort_options(report => $report, sortable_columns => \@sortable);
$report->set_options(
raw_top_info_text => $self->render('delivery_plan/report_top', { output => 0 }),
raw_bottom_info_text => $self->render('delivery_plan/report_bottom', { output => 0 }, models => $self->models),
);
}

sub make_filter_summary {
my ($self) = @_;

my $filter = $::form->{filter} || {};
my @filter_strings;

my @filters = (
[ $filter->{order}{"ordnumber:substr::ilike"}, $::locale->text('Number') ],
[ $filter->{part}{"partnumber:substr::ilike"}, $::locale->text('Part Number') ],
[ $filter->{"description:substr::ilike"}, $::locale->text('Part Description') ],
[ $filter->{"reqdate:date::ge"}, $::locale->text('Delivery Date') . " " . $::locale->text('From Date') ],
[ $filter->{"reqdate:date::le"}, $::locale->text('Delivery Date') . " " . $::locale->text('To Date') ],
[ $filter->{"qty:number"}, $::locale->text('Quantity') ],
[ $filter->{order}{customer}{"name:substr::ilike"}, $::locale->text('Customer') ],
[ $filter->{order}{customer}{"customernumber:substr::ilike"}, $::locale->text('Customer Number') ],
);

my %flags = (
part => $::locale->text('Parts'),
service => $::locale->text('Services'),
assembly => $::locale->text('Assemblies'),
);
my @flags = map { $flags{$_} } @{ $filter->{part}{type} || [] };

for (@flags) {
push @filter_strings, $_ if $_;
}
for (@filters) {
push @filter_strings, "$_->[1]: $_->[0]" if $_->[0];
}

$self->{filter_summary} = join ', ', @filter_strings;
}

sub delivery_plan_query {
my $employee_id = SL::DB::Manager::Employee->current->id;
my $oe_owner = $_[0]->all_edit_right ? '' : " oe.eployee_id = $employee_id AND";
[
'order.customer_id' => { gt => 0 },
'order.closed' => 0,
or => [ 'order.quotation' => 0, 'order.quotation' => undef ],

# filter by shipped_qty < qty, read from innermost to outermost
'id' => [ \"
-- 3. resolve the desired information about those
SELECT oi.id FROM (
-- 2. slice only part, orderitem and both quantities from it
SELECT parts_id, trans_id, qty, SUM(doi_qty) AS doi_qty FROM (
-- 1. join orderitems and deliverorder items via record_links.
-- also add customer data to filter for sales_orders
SELECT oi.parts_id, oi.trans_id, oi.id, oi.qty, doi.qty AS doi_qty
FROM orderitems oi, oe, record_links rl, delivery_order_items doi
WHERE
oe.id = oi.trans_id AND
oe.customer_id IS NOT NULL AND
(oe.quotation = 'f' OR oe.quotation IS NULL) AND
NOT oe.closed AND
$oe_owner
rl.from_id = oe.id AND
rl.from_id = oi.trans_id AND
oe.id = oi.trans_id AND
rl.from_table = 'oe' AND
rl.to_table = 'delivery_orders' AND
rl.to_id = doi.delivery_order_id AND
oi.parts_id = doi.parts_id
) tuples GROUP BY parts_id, trans_id, qty
) partials
LEFT JOIN orderitems oi ON partials.parts_id = oi.parts_id AND partials.trans_id = oi.trans_id
WHERE oi.qty > doi_qty

UNION ALL

-- 4. since the join over record_links fails for sales_orders wihtout any delivery order
-- retrieve those without record_links at all
SELECT oi.id FROM orderitems oi, oe
WHERE
oe.id = oi.trans_id AND
oe.customer_id IS NOT NULL AND
(oe.quotation = 'f' OR oe.quotation IS NULL) AND
NOT oe.closed AND
$oe_owner
oi.trans_id NOT IN (
SELECT from_id
FROM record_links rl
WHERE
rl.from_table ='oe' AND
rl.to_table = 'delivery_orders'
)

UNION ALL

-- 5. now for the really nasty cases.
-- If someone partially delivered an order in several delivery orders,
-- there will be lots of record_links (4 doesn't catch those) but those
-- won't have matching part_ids in delivery_order_items, so 1-3 can't
-- find anything
-- In this case aggreg record_links - delivery_order - delivery_order_items
-- slice only oe.id, parts_id and sum of of qty
-- left join that onto orderitems to get matching qtys in doi while retaining
-- entrys without matches and then throw out those without record_links
-- TODO: join this and 1-3 into a general case
-- need debug info? uncomment these:
SELECT oi.id -- ,oi.trans_id, oi.parts_id, coalesce(sum, 0), agg.parts_id
FROM orderitems oi LEFT JOIN (
SELECT rl.from_id as oid, doi.parts_id, sum(doi.qty) FROM (
SELECT from_id, to_id
FROM record_links rl
LEFT JOIN oe ON oe.id = from_id
WHERE
rl.from_table = 'oe' AND
rl.to_table = 'delivery_orders' AND

oe.customer_id IS NOT NULL AND
$oe_owner
(oe.quotation = 'f' OR oe.quotation IS NULL) AND NOT oe.closed
) rl
LEFT JOIN delivery_order_items doi ON (rl.to_id = doi.delivery_order_id)
GROUP BY rl.from_id, doi.parts_id
) agg ON (agg.oid = oi.trans_id AND agg.parts_id = oi.parts_id)
LEFT JOIN oe ON oe.id = oi.trans_id
WHERE
EXISTS (
SELECT to_id
FROM record_links rl
WHERE oi.trans_id = rl.from_id AND rl.from_table = 'oe' AND rl.to_table = 'delivery_orders'
) AND
coalesce(sum, 0) < oi.qty AND
oe.customer_id IS NOT NULL AND
$oe_owner
(oe.quotation = 'f' OR oe.quotation IS NULL) AND NOT oe.closed
" ],
]
}

sub init_models {
my ($self) = @_;

SL::Controller::Helper::GetModels->new(
controller => $self,
model => 'OrderItem',
sorted => {
_default => {
by => 'reqdate',
dir => 1,
},
%sort_columns,
},
query => $self->delivery_plan_query,
with_objects => [ 'order', 'order.customer', 'part' ],
);
}

sub init_all_edit_right {
$::auth->assert('sales_all_edit', 1)
}

sub link_to {
my ($self, $object, %params) = @_;

return unless $object;
my $action = $params{action} || 'edit';

if ($object->isa('SL::DB::Order')) {
my $type = $object->type;
my $vc = $object->is_sales ? 'customer' : 'vendor';
my $id = $object->id;

return "oe.pl?action=$action&type=$type&vc=$vc&id=$id";
}
if ($object->isa('SL::DB::Part')) {
my $id = $object->id;
return "ic.pl?action=$action&id=$id";
}
if ($object->isa('SL::DB::Customer')) {
my $id = $object->id;
return "controller.pl?action=CustomerVendor/$action&id=$id&db=customer";
}
}

1;
(13-13/46)