#!/usr/bin/perl

use strict;
use warnings;

use CGI::FormBuilder;

my $build_path = '../build';

# TODO: check if protocol-agnostic URL works
my $webroot = 'https://byvandring.nu/fribillet/';
my $req_path = $build_path . '/html/fribillet/index.html';
my $ack_path = $build_path . '/html/fribillet/tak/index.html';

my $webmaster = 'info@byvandring.nu';
my $frontdesk = 'info@byvandring.nu';
my $helpdesk = 'siri@jones.dk';

# Set this to 1 for a separate confirmation page
my ($confirm) = 1;

# Built-in email validation is too simplistic
my $valid_email = '/^[+_A-Za-z0-9-]+(\.[+_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*(\.[_A-Za-z0-9-]+)$/';

my $form = CGI::FormBuilder->new(
	lang => 'da',
	title => 'Fribillet til byvandring',
	method => 'POST',
	fields => [qw/
		navn
		modtager
		postnr
		email
		tur
		antal
		tid
		kommentar
	/],
	validate => {
		email => $valid_email,
		_email => $valid_email, #fake check to silence warning of variable used only once
	},
	required => [qw/
		email
	/],
	messages => ':da_DK',
	submit => ['Send oplysningerne'],
	action => $webroot, #avoids loosing submitted values when redirected from other site
);

$form->field(
	name => 'navn',
	label => 'Navn',
	comment => '(dit eget navn)'
);
$form->field(
	name => 'modtager',
	label => 'Modtager',
	comment => '(hvem du vil invitere)'
);
$form->field(
	name => 'postnr',
	label => 'Postnummer',
	size => 5,
	comment => '(hvis du har lyst)'
);
$form->field(
	name => 'tur',
	label => 'Tur',
	size => 5,
	comment => '(turnavn, bydel eller tema)'
);
$form->field(
	name => 'antal',
	label => 'Antal',
	size => 5,
	comment => '(antal deltagere)'
);
$form->field(
	name => 'tid',
	label => 'Tidspunkt',
	size => 5,
	comment => '(dato og tidspunkt)'
);
$form->field(
	name	=> 'kommentar',
	type	=> 'textarea',
	rows	=> 3,
);

my ($form_required_text) = $form->{opt}{messages}{form_required_text};
my ($mail_from) = $webmaster;
my ($mail_to, $mail_subject);

if ($form->submitted) {
	my $infostring = "Tak for din henvendelse!";
	if ($form->validate) {
		$mail_to = $frontdesk;
		$mail_subject = 'Fribillet til byvandring';
	} else {
		$mail_to = "$frontdesk, $helpdesk";
		$mail_subject = 'FEJL vedr. fribillet til byvandring';
		$infostring .= "\n<P>OBS! Der var fejl i et eller flere af felterne. Informationerne er sendt uanset, men det anbefales at gå tilbage, checke at alle felter er udfyldt korrekt, og derefter sende igen.";
		$confirm = 0;
	};
	# Abuse subject to add additional headers
#	$mail_subject .= "\n" . 'Content-Type: text/plain; charset="ISO-8859-1";';
#	$mail_subject .= "\n" . 'Content-Transfer-Encoding: 8bit';
	$form->mailresults(
		to	=> $mail_to,
		from	=> $mail_from,
		subject	=> "$mail_subject",
	);
	if ($confirm) {
		$infostring .= "\n<P>Følgende informationer er blevet sendt:";
		$form->{opt}{messages}{form_confirm_text} = "$infostring";
		print $form->confirm(
			header		=> 1,
			template	=> $ack_path
		);
	} else {
		print $form->render(
			header		=> 1,
			sticky		=> (! $form->validate),
#FIXME			text		=> $infostring,
			template	=> $req_path
		);
	}
} else {
	print $form->render(
		header		=> 1,
		template	=> $req_path
	);
}

1;