<?php
require __DIR__ . '/vendor/autoload.php';

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
use Dotenv\Dotenv;

$dotenv = Dotenv::createImmutable(__DIR__ . '/../');
$dotenv->safeLoad();

function checkboxArrayToString($value)
{
    if (is_array($value) && count($value) > 0) {
        return implode(', ', $value);
    }
    return 'None';
}

function yesNo($value)
{
    return !empty($value) ? 'Yes' : 'No';
}

// Honeypot spam protection
if (!empty($_POST['website'])) {
    exit('Spam detected.');
}

// Privacy consent required
if (empty($_POST['privacy'])) {
    exit('Privacy consent required.');
}

// Personal
$first_name = trim($_POST['first_name'] ?? '');
$last_name  = trim($_POST['last_name'] ?? '');
$name       = trim("$first_name $last_name");

$email      = trim($_POST['email'] ?? '');
$phone      = trim($_POST['phone'] ?? '');

// Attendance
$attendance = $_POST['attendance'] ?? 'Unknown';

// Drinks
$drinks = checkboxArrayToString($_POST['drinks'] ?? []);

// Diet
$diet = $_POST['diet'] ?? 'Not specified';

// Allergies
$allergies = checkboxArrayToString($_POST['allergies'] ?? []);
$allergies_other = trim($_POST['allergies_other'] ?? '');

// Organization
$parking      = yesNo($_POST['parking'] ?? '');
$ride_needed  = yesNo($_POST['ride_needed'] ?? '');
$ride_offer   = yesNo($_POST['ride_offer'] ?? '');
$hotel        = yesNo($_POST['hotel'] ?? '');
$hotel_booked = yesNo($_POST['hotel_booked'] ?? '');

// Memories
$memory_card = yesNo($_POST['memory_card'] ?? '');
$photo_link  = yesNo($_POST['photo_link'] ?? '');

// Entertainment
$music_request = trim($_POST['music_request'] ?? '');
$contribution  = checkboxArrayToString($_POST['contribution'] ?? []);

// Children
$children       = $_POST['children'] ?? 'No';
$children_count = trim($_POST['children_count'] ?? '');
$children_ages  = trim($_POST['children_ages'] ?? '');

// Message
$message = trim($_POST['message'] ?? '');

// UTF-8 conversion
$fields = [
    &$name,
    &$email,
    &$phone,
    &$attendance,
    &$drinks,
    &$diet,
    &$allergies,
    &$allergies_other,
    &$music_request,
    &$contribution,
    &$children,
    &$children_count,
    &$children_ages,
    &$message
];

foreach ($fields as &$field) {
    $field = mb_convert_encoding($field, 'UTF-8', 'auto');
}

$mail = new PHPMailer(true);

try {

    $mail->CharSet = 'UTF-8';

    $mail->isSMTP();
    $mail->Host       = $_ENV['SMTP_HOST'];
    $mail->SMTPAuth   = true;
    $mail->Username   = $_ENV['SMTP_USER'];
    $mail->Password   = $_ENV['SMTP_PASS'];
    $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
    $mail->Port       = (int)$_ENV['SMTP_PORT'];

    $mail->setFrom($_ENV['FROM_EMAIL'], $_ENV['FROM_NAME']);
    $mail->addAddress($_ENV['TO_EMAIL']);

    $mail->Subject = mb_encode_mimeheader(
        "Wedding RSVP: $name",
        'UTF-8'
    );

    $body = <<<EOD
==================================================
PERSONAL INFORMATION
==================================================

Name: $name
Email: $email
Phone: $phone

==================================================
ATTENDANCE
==================================================

Attendance: $attendance

==================================================
DRINKS
==================================================

Preferred Drinks: $drinks

==================================================
FOOD
==================================================

Diet: $diet

Allergies: $allergies
Additional Details: $allergies_other

==================================================
ORGANIZATION
==================================================

Parking Needed: $parking
Needs Ride: $ride_needed
Can Offer Ride: $ride_offer
Hotel Stay: $hotel
Hotel Booked: $hotel_booked

==================================================
MEMORIES & EXTRAS
==================================================

Greeting Card: $memory_card
Wedding Photo Link: $photo_link

==================================================
ENTERTAINMENT
==================================================

Song Request: $music_request

Contribution:
$contribution

==================================================
CHILDREN
==================================================

Coming with Children: $children
Number of Children: $children_count
Children Ages: $children_ages

==================================================
MESSAGE
==================================================

$message

EOD;

    $mail->Body = $body;

    file_put_contents(
    __DIR__ . '/debug.txt',
    print_r($_POST, true)
);

echo "PHP WORKS";
exit;

} catch (Exception $e) {

    echo "RSVP could not be sent. Mailer Error: {$mail->ErrorInfo}";
}