<?php
require_once __DIR__ . '/db/config.php';

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $name = trim($_POST['name'] ?? '');
    $email = trim($_POST['email'] ?? '');
    $company = trim($_POST['company'] ?? '');
    $occupation = trim($_POST['occupation'] ?? '');
    $relation = trim($_POST['relation'] ?? '');

    if (empty($name) || empty($email) || !filter_var($email, FILTER_VALIDATE_EMAIL)) {
        header('Location: index.php?status=error');
        exit;
    }

    try {
        $pdo = db();
        $stmt = $pdo->prepare(
            "INSERT INTO attendees (name, email, company, occupation, relation) VALUES (:name, :email, :company, :occupation, :relation)"
        );
        $stmt->bindParam(':name', $name, PDO::PARAM_STR);
        $stmt->bindParam(':email', $email, PDO::PARAM_STR);
        $stmt->bindParam(':company', $company, PDO::PARAM_STR);
        $stmt->bindParam(':occupation', $occupation, PDO::PARAM_STR);
        $stmt->bindParam(':relation', $relation, PDO::PARAM_STR);
        
        $stmt->execute();

        header('Location: index.php?status=success');
        exit;
    } catch (PDOException $e) {
        // In a real app, log this error.
        header('Location: index.php?status=error');
        exit;
    }
} else {
    header('Location: index.php');
    exit;
}