<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require __DIR__ . '/vendor/autoload.php'; // <- same directory as rsvp-submit.php

// Load .env
$dotenvPath = __DIR__ . '/../.env';
if (!file_exists($dotenvPath)) {
    exit("Missing .env file");
}
$env = parse_ini_file($dotenvPath, false, INI_SCANNER_RAW);

$SMTP_HOST = $env['SMTP_HOST'] ?? '';
$SMTP_PORT = $env['SMTP_PORT'] ?? 587;
$SMTP_USER = $env['SMTP_USER'] ?? '';
$SMTP_PASS = $env['SMTP_PASS'] ?? '';
$FROM_EMAIL = $env['FROM_EMAIL'] ?? '';
$FROM_NAME  = $env['FROM_NAME'] ?? '';
$TO_EMAIL   = $env['TO_EMAIL'] ?? '';

if ($_SERVER["REQUEST_METHOD"] !== "POST") exit("Invalid request");

// Honeypot
if (!empty($_POST['website'])) exit;

// Sanitize inputs
$first_name = htmlspecialchars($_POST['first_name'] ?? '');
$last_name  = htmlspecialchars($_POST['last_name'] ?? '');
$drinks     = isset($_POST['drinks']) ? implode(", ", $_POST['drinks']) : "None";
$allergies  = htmlspecialchars($_POST['allergies'] ?? '');

if (!$first_name || !$last_name) exit("Missing required fields");

// Prepare email
$mail = new PHPMailer(true);
try {
    $mail->isSMTP();
    $mail->Host       = $SMTP_HOST;
    $mail->SMTPAuth   = true;
    $mail->Username   = $SMTP_USER;
    $mail->Password   = $SMTP_PASS;
    $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
    $mail->Port       = $SMTP_PORT;

    $mail->setFrom($FROM_EMAIL, $FROM_NAME);
    $mail->addAddress($TO_EMAIL);

    // Email subject & body
    $mail->Subject = "New Wedding Guest RSVP Form: $first_name $last_name";
    $mail->Body    = "Name: $first_name $last_name\nDrinks: $drinks\nAllergies: $allergies\n";

    $mail->send();
    echo "Thank you! Your RSVP has been sent.";
} catch (Exception $e) {
    error_log("RSVP mail error: {$mail->ErrorInfo}");
    echo "There was an error sending your RSVP. Please try again later.";
}