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#=====================================================================
# LX-Office ERP
# Copyright (C) 2008
# Based on SQL-Ledger Version 2.1.9
# Web http://www.lx-office.org
#
#=====================================================================
#
# Letter module
#
#======================================================================

use strict;
use POSIX qw(strftime);

use SL::GenericTranslations;
use SL::ReportGenerator;
use SL::Letter;
use SL::CT;
use SL::DB::Contact;
use SL::DB::Default;
use SL::Helper::CreatePDF;
use SL::Helper::Flash;
require "bin/mozilla/reportgenerator.pl";
require "bin/mozilla/io.pl";
require "bin/mozilla/arap.pl";

use constant TEXT_CREATED_FOR_VALUES => (qw(presskit fax letter));
use constant PAGE_CREATED_FOR_VALUES => (qw(sketch 1 2));

our ($form, %myconfig, $locale, $lxdebug);

# parserhappy(R)
# $locale->text('Presskit')
# $locale->text('Sketch')
# $locale->text('Fax')
# $locale->text('Letter')

sub add {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');
my %params = @_;

return $main::lxdebug->leave_sub if load_letter_draft();

my $letter = SL::Letter->new(%params);

if (my $cp_id = delete $::form->{contact_id}) {
my $contact = SL::DB::Manager::Contact->find_by(cp_id => $cp_id);
$letter->{cp_id} = $contact->cp_id;
$letter->{vc_id} = $contact->cp_cv_id;
$letter->{greeting} = GenericTranslations->get(
translation_type => 'greetings::' . ($contact->{cp_gender} eq 'f' ? 'female' : 'male'),
language_id => $contact->language_id,
allow_fallback => 1
);
$params{language_id} = $contact->language_id;
}

$letter->check_date;

_display(
letter => $letter,
title => $locale->text('Add Letter'),
language_id => $params{language_id},
);

$::lxdebug->leave_sub;
}

sub edit {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');
add() unless ($form->{id});

my $letter = SL::Letter->new( id => $form->{id}, draft => $form->{draft} )->load;

add() unless $letter && ($letter->{id} || $letter->{draft_id});

_display(
letter => $letter,
title => $locale->text('Edit Letter'),
);

$::lxdebug->leave_sub;
}

sub save {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');
my %params = @_;


$::form->error(t8('The subject is missing.')) unless $form->{letter}->{subject};
$::form->error(t8('The body is missing.')) unless $form->{letter}->{body};
$::form->error(t8('The employee is missing.')) unless $form->{letter}->{employee_id};

my $letter = _update();

$letter->check_number;
$letter->save;

$form->{SAVED_MESSAGE} = $locale->text('Letter saved!');

_display(
letter => $letter,
);

$::lxdebug->leave_sub;
}

sub save_letter_draft {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');

$::form->error(t8('The subject is missing.')) unless $form->{letter}->{subject};
$::form->error(t8('The body is missing.')) unless $form->{letter}->{body};
$::form->error(t8('The employee is missing.')) unless $form->{letter}->{employee_id};
$::form->error(t8('Already as letter saved.')) if $form->{letter}->{letternumber};

my $letter_draft = _update();
$letter_draft->{draft_id} = delete $letter_draft->{id}; # if we have one
$letter_draft->save(draft => '1');
$letter_draft->{vergiss_mich_nicht} = 'nicht vergessen';
$form->{SAVED_MESSAGE} = $locale->text('Draft for this Letter saved!');

_display(
letter => $letter_draft,
);

$::lxdebug->leave_sub;
}

sub delete {
$main::lxdebug->enter_sub();

$main::auth->assert('sales_letter_edit');
# NYI
$form->{SAVED_MESSAGE} = $locale->text('Not yet implemented!');
_display();

$main::lxdebug->leave_sub();
}

sub delete_letter_drafts {
$main::lxdebug->enter_sub();

$main::auth->assert('sales_letter_edit');

my @ids;
foreach (keys %{$form}) {
push @ids, $1 if (/^checked_(.*)/ && $form->{$_});
}

SL::Letter->delete_drafts(@ids) if (@ids); #->{id});

add();

$main::lxdebug->leave_sub();
}

sub _display {
$main::lxdebug->enter_sub();

$main::auth->assert('sales_letter_edit');
my %params = @_;

my $letter = $params{letter};

my %TMPL_VAR;

$form->{type} = 'letter'; # needed for print_options
$form->{vc} = 'customer'; # needs to be for _get_contacts...
$form->{"$form->{vc}_id"} ||= $letter->{customer_id};
$form->{jsscript} = 1;
$form->{javascript} =
qq|<script type="text/javascript" src="js/customer_or_vendor_selection.js"></script>
<script type="text/javascript" src="js/edit_part_window.js"></script>|;

$form->get_lists("contacts" => "ALL_CONTACTS",
"employees" => "ALL_EMPLOYEES",
"salesmen" => "ALL_SALESMEN",
"departments" => "ALL_DEPARTMENTS",
"languages" => "languages",
"customers" => { key => "ALL_CUSTOMERS",
limit => $myconfig{vclimit} + 1 },
"vc" => 'customer',
);

$TMPL_VAR{vc_keys} = sub { "$_[0]->{name}--$_[0]->{id}" };
$TMPL_VAR{vc_select} = "customer_or_vendor_selection_window('letter.customer', '', 0, 0)";
$TMPL_VAR{ct_labels} = sub { ($_[0]->{cp_greeting} ? "$_[0]->{cp_greeting} " : '') . $_[0]->{cp_name} . ($_[0]->{cp_givenname} ? ", $_[0]->{cp_givenname}" : '') };
$TMPL_VAR{TCF} = [ map { key => $_, value => $locale->text(ucfirst $_) }, TEXT_CREATED_FOR_VALUES() ];
$TMPL_VAR{PCF} = [ map { key => $_, value => $locale->text(ucfirst $_) }, PAGE_CREATED_FOR_VALUES() ];

$form->header();

$form->{language_id} ||= $params{language_id};

print $form->parse_html_template('letter/edit', {
%params,
%TMPL_VAR,
letter => $letter,
print_options => print_options(inline => 1),
});

$main::lxdebug->leave_sub();
}

sub search {
$lxdebug->enter_sub();

$main::auth->assert('sales_letter_report');

$form->get_lists("employees" => "EMPLOYEES",
"salesmen" => "SALESMEN",
"customers" => "ALL_CUSTOMERS");

$form->{jsscript} = 1;
$form->{title} = $locale->text('Letters');

$form->header();
print $form->parse_html_template('letter/search');

$lxdebug->leave_sub();
}

sub report {
$lxdebug->enter_sub();

$main::auth->assert('sales_letter_report');

my %params = @_;

my @report_params = qw(letternumber subject body contact date_from date_to cp_id);

if ($form->{selectcustomer}) {
push @report_params, 'customer_id';
$form->{customer_id} = $form->{customer};
} else {
push @report_params, 'customer';
}

report_generator_set_default_sort('date', 1);

%params = (%params, map { $_ => $form->{$_} } @report_params);

my @letters = SL::Letter->find(%params);

$form->{rowcount} = @letters;
$form->{title} = $locale->text('Letters');

my %column_defs = (
'date' => { 'text' => $locale->text('Date'), },
'subject' => { 'text' => $locale->text('Subject'), },
'letternumber' => { 'text' => $locale->text('Letternumber'), },
'customer' => { 'text' => $locale->text('Customer') },
'contact' => { 'text' => $locale->text('Contact') },
'date' => { 'text' => $locale->text('Date') },
);

my @columns = qw(date subject letternumber customer contact date);
my $href = build_std_url('action=report', grep { $form->{$_} } @report_params);

my @sortable_columns = qw(date subject letternumber customer contact date);

foreach my $name (@sortable_columns) {
my $sortdir = $form->{sort} eq $name ? 1 - $form->{sortdir} : $form->{sortdir};
$column_defs{$name}->{link} = $href . "&sort=$name&sortdir=$sortdir";
}

my @options;

# option line

push @options, $locale->text('Subject') . " : $form->{subject}" if ($form->{subject});
push @options, $locale->text('Body') . " : $form->{body}" if ($form->{body});

my @hidden_report_params = map { +{ 'key' => $_, 'value' => $form->{$_} } } @report_params;

my $report = SL::ReportGenerator->new(\%myconfig, $form, 'std_column_visibility' => 1);

$report->set_columns(%column_defs);
$report->set_column_order(@columns);

$report->set_export_options('report', @report_params);

$report->set_sort_indicator($form->{sort}, $form->{sortdir});

$report->set_options('raw_top_info_text' => $form->parse_html_template('letter/report_top', { 'OPTIONS' => \@options }),
'raw_bottom_info_text' => $form->parse_html_template('letter/report_bottom', { 'HIDDEN' => \@hidden_report_params }),
'output_format' => 'HTML',
'title' => $form->{title},
'attachment_basename' => $locale->text('letters_list') . strftime('_%Y%m%d', localtime time),
);
$report->set_options_from_form();

my $idx = 0;
my $callback = build_std_url('action=report', grep { $form->{$_} } @report_params);
my $edit_url = build_std_url('action=edit', 'callback=' . E($callback));

foreach my $l (@letters) {
$idx++;

my $row = { map { $_ => { 'data' => $l->{$_} } } keys %{ $l } };

$row->{subject}->{link} = $edit_url . '&id=' . Q($l->{id});
$row->{letternumber}->{link} = $edit_url . '&id=' . Q($l->{id});

$report->add_data($row);
}

$report->generate_with_headers();

$lxdebug->leave_sub();
}

sub print_letter {
$lxdebug->enter_sub();

$main::auth->assert('sales_letter_edit');

my ($old_form) = @_;

my $display_form = $form->{display_form} || "display_form";
my $letter = _update();

$letter->export_to($form);
$form->{formname} = "letter";
$form->{format} = "pdf";

my $language_saved = $form->{language_id};
my $greeting_saved = $form->{greeting};
my $cp_id_saved = $form->{cp_id};

call_sub("customer_details");

if (!$cp_id_saved) {
# No contact was selected. Delete all contact variables because
# IS->customer_details() and IR->vendor_details() get the default
# contact anyway.
map({ delete($form->{$_}); } grep(/^cp_/, keys(%{ $form })));
}

$form->{greeting} = $greeting_saved;
$form->{language_id} = $language_saved;

if ($form->{cp_id}) {
CT->get_contact(\%myconfig, $form);
}

$form->{cp_contact_formal} = ($form->{cp_greeting} ? "$form->{cp_greeting} " : '') . ($form->{cp_givenname} ? "$form->{cp_givenname} " : '') . $form->{cp_name};

$form->get_employee_data('prefix' => 'employee', 'id' => $letter->{employee_id});
$form->get_employee_data('prefix' => 'salesman', 'id' => $letter->{salesman_id});

my %create_params = (
template => scalar(SL::Helper::CreatePDF->find_template(
name => 'letter',
printer_id => $::form->{printer_id},
language_id => $::form->{language_id},
formname => 'letter',
format => 'pdf',
)),
variables => $::form,
return => 'file_name',
);
my $pdf_file_name;
eval {
$pdf_file_name = SL::Helper::CreatePDF->create_pdf(%create_params);

if ( $::form->{media} eq 'email') {
my $mail = Mailer->new;
my $signature = $::myconfig{signature};
$mail->{$_} = $::form->{$_} for qw(cc subject message bcc to);
$mail->{from} = qq|"$::myconfig{name}" <$::myconfig{email}>|;
$mail->{fileid} = time() . '.' . $$ . '.';
$mail->{attachments} = [{ "filename" => $pdf_file_name,
"name" => $::form->{attachment_name} }];
$mail->{message} .= "\n-- \n$signature";
$mail->{message} =~ s/\r//g;

my $err = $mail->send;
# TODO
# $self
# ->js
# ->flash($err?'error':'info',
# $err?t8('A mail error occurred: #1', $err):
# t8('The document have been sent to \'#1\'.', $mail->{to}))
# ->render($self);
return $err?0:1;
}

if (!$::form->{printer_id}) {
my $file = IO::File->new($pdf_file_name, 'r') || croak("Cannot open file '$pdf_file_name'");
my $size = -s $pdf_file_name;
my $content_type = 'application/pdf';
my $attachment_name = $::form->generate_attachment_filename;
$attachment_name =~ s:.*//::g;

print $::form->create_http_response(content_type => $content_type,
content_disposition => 'attachment; filename="' . $attachment_name . '"',
content_length => $size);

$::locale->with_raw_io(\*STDOUT, sub { print while <$file> });
$file->close;
unlink $pdf_file_name;
return 1;
}

my $printer = SL::DB::Printer->new(id => $::form->{printer_id})->load;
my $command = SL::Template::create(type => 'ShellCommand', form => Form->new(''))->parse($printer->printer_command);

open my $out, '|-', $command or die $!;
binmode $out;
print $out scalar(read_file($pdf_file_name));
close $out;

flash_later('info', t8('The documents have been sent to the printer \'#1\'.', $printer->printer_description));
my $callback = build_std_url('letter.pl', 'action=edit', 'id=' . $letter->{id}, 'printer_id');
$::form->redirect;
1;
} or do {
unlink $pdf_file_name;
$::form->error(t8("Creating the PDF failed:") . " " . $@);
};

$lxdebug->leave_sub();
}

sub update {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');

my $name_selected = shift;

_display(
letter => _update(
_name_selected => $name_selected,
),
);

$::lxdebug->leave_sub;
}

sub _update {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');

my %params = @_;

my $from_letter = $::form->{letter};

my $letter = SL::Letter->new( id => $from_letter->{id} )
->load
->update_from($from_letter);

$letter->check_name(%params);
$letter->check_date;
$letter->set_greetings;

$::lxdebug->leave_sub;

return $letter;
}

sub letter_tab {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');

my @report_params = qw(letternumber subject contact date);

my @letters = SL::Letter->find(map { $_ => $form->{$_} } @report_params);

$::lxdebug->leave_sub;
}

sub e_mail {
$::lxdebug->enter_sub;

$main::auth->assert('sales_letter_edit');
my $letter = _update();

$letter->check_number;
$letter->save;

$letter->export_to($::form);

$::form->{id} = $letter->{id};
edit_e_mail();

$::lxdebug->leave_sub;
}

sub dispatcher {
$main::lxdebug->enter_sub();
# dispatch drafts
my $locale = $main::locale;


if ($form->{letter_draft_action} eq $locale->text("Skip")) {
$form->{DONT_LOAD_DRAFT} = 1;
add();
return 1;
} elsif ($form->{letter_draft_action} eq $locale->text("Delete drafts")) {
delete_letter_drafts();
return 1;
}

foreach my $action (qw(e_mail print save update save_letter_draft)) {
if ($::form->{"action_${action}"}) {
$::form->{dispatched_action} = $action;
call_sub($action);
return;
}
}

$::form->error($::locale->text('No action defined.'));
$::lxdebug->leave_sub;
}

sub continue {
call_sub($form->{nextsub});
}


sub load_letter_draft {
$lxdebug->enter_sub();

$main::auth->assert('sales_letter_edit');
$main::lxdebug->leave_sub() and return 0 if ($form->{DONT_LOAD_DRAFT});
$form->{title} = $locale->text('Letter Draft');
$form->{script} = 'letter.pl';

my @letter_drafts = SL::Letter->find(draft => 1);

return unless @letter_drafts;
$form->header();
print $form->parse_html_template('letter/load_drafts', { LETTER_DRAFTS => \@letter_drafts });

return 1;
$lxdebug->leave_sub();
}

1;
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