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package SL::Controller::Taxzones;

use strict;

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

use SL::DB::TaxZone;
use SL::Helper::Flash;
use SL::Locale::String;
use SL::DB::Manager::Buchungsgruppe;
use SL::DB::Manager::TaxzoneChart;

use Rose::Object::MakeMethods::Generic (
scalar => [ qw(config) ],
'scalar --get_set_init' => [ qw(defaults) ],
);

__PACKAGE__->run_before('check_auth');
__PACKAGE__->run_before('load_config', only => [ qw(edit update delete) ]);

#
# actions
#

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

my $taxzones = SL::DB::Manager::TaxZone->get_all_sorted();

$self->setup_list_action_bar;
$self->render('taxzones/list',
title => t8('List of tax zones'),
TAXZONES => $taxzones);
}

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

$self->config(SL::DB::TaxZone->new());
$self->show_form(title => t8('Add taxzone'));
}

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

$self->setup_show_form_action_bar;
$self->render('taxzones/form', %params,
BUCHUNGSGRUPPEN => SL::DB::Manager::Buchungsgruppe->get_all_sorted);
}

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

$self->show_form(title => t8('Edit taxzone'),
CHARTLIST => SL::DB::TaxzoneChart->get_all_accounts_by_taxzone_id($self->config->id));
}

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

$self->config(SL::DB::TaxZone->new());
$self->create_or_update;
}

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

$self->create_or_update;
}

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

# allow deletion of unused tax zones. Will fail, due to database
# constraints, if tax zone is used anywhere

$self->{config}->db->with_transaction(sub {
my $taxzone_charts = SL::DB::Manager::TaxzoneChart->get_all(where => [ taxzone_id => $self->config->id ]);
foreach my $taxzonechart ( @{$taxzone_charts} ) { $taxzonechart->delete };
$self->config->delete();
flash_later('info', $::locale->text('The tax zone has been deleted.'));

1;
}) || flash_later('error', $::locale->text('The tax zone is in use and cannot be deleted.'));

$self->redirect_to(action => 'list');

}

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

SL::DB::TaxZone->reorder_list(@{ $::form->{tzone_id} || [] });

$self->render(\'', { type => 'json' });
}

#
# filters
#

sub check_auth {
$::auth->assert('config');
}

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

$self->config(SL::DB::TaxZone->new(id => $::form->{id})->load);
}

#
# helpers
#

sub create_or_update {
my ($self) = @_;
my $is_new = !$self->config->id;

my $params = delete($::form->{config}) || { };

delete $params->{id};

my @errors;

my $db = $self->config->db;
if (!$db->with_transaction(sub {

# always allow editing of description and obsolete
$self->config->assign_attributes( %{$params} ) ;

push(@errors, $self->config->validate); # check for description

if (@errors) {
die @errors . "\n";
};

$self->config->save;

if ( $is_new or $self->config->orphaned ) {
# Save taxzone_charts
my $buchungsgruppen = SL::DB::Manager::Buchungsgruppe->get_all_sorted();

foreach my $bg (@{ $buchungsgruppen }) {
my $income_accno_id = $::form->{"income_accno_id_" . $bg->id};
my $expense_accno_id = $::form->{"expense_accno_id_" . $bg->id};

my ($income_accno, $expense_accno);
$income_accno = SL::DB::Manager::Chart->find_by( id => $income_accno_id ) if $income_accno_id;
$expense_accno = SL::DB::Manager::Chart->find_by( id => $expense_accno_id ) if $expense_accno_id;

push(@errors, t8('Booking group #1 needs a valid income account' , $bg->description)) unless $income_accno;
push(@errors, t8('Booking group #1 needs a valid expense account', $bg->description)) unless $expense_accno;

my $taxzone_chart = SL::DB::Manager::TaxzoneChart->find_by_or_create(buchungsgruppen_id => $bg->id, taxzone_id => $self->config->id);
# if taxzonechart doesn't exist an empty new TaxzoneChart object is
# created by find_by_or_create, so we have to assign buchungsgruppe and
# taxzone again for the new case to work
$taxzone_chart->taxzone_id($self->config->id);
$taxzone_chart->buchungsgruppen_id($bg->id);
$taxzone_chart->income_accno_id($income_accno->id);
$taxzone_chart->expense_accno_id($expense_accno->id);
$taxzone_chart->save;
}
}

1;
})) {
die @errors ? join("\n", @errors) . "\n" : $db->error . "\n";
# die with rollback of taxzone save if saving of any of the taxzone_charts fails
# only show the $db->error if we haven't already identified the likely error ourselves
}

flash_later('info', $is_new ? t8('The taxzone has been created.') : t8('The taxzone has been saved.'));
$self->redirect_to(action => 'list');
}

#
# initializers
#

sub init_defaults { SL::DB::Default->get };

#
# helpers
#

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

my $is_new = !$self->config->id;

for my $bar ($::request->layout->get('actionbar')) {
$bar->add(
action => [
t8('Save'),
submit => [ '#form', { action => 'Taxzones/' . ($is_new ? 'create' : 'update') } ],
checks => [ 'kivi.validate_form' ],
accesskey => 'enter',
],

action => [
t8('Delete'),
submit => [ '#form', { action => 'Taxzones/delete' } ],
confirm => t8('Do you really want to delete this object?'),
disabled => $is_new ? t8('This object has not been saved yet.')
: !$self->config->orphaned ? t8('The object is in use and cannot be deleted.')
: undef,
],

link => [
t8('Abort'),
link => $self->url_for(action => 'list'),
],
);
}
$::request->layout->add_javascripts('kivi.Validator.js');
}

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

for my $bar ($::request->layout->get('actionbar')) {
$bar->add(
link => [
t8('Add'),
link => $self->url_for(action => 'new'),
],
);
}
}

1;
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