<?php
header('Content-Type: application/json');

require_once __DIR__ . '/db/config.php';
require_once __DIR__ . '/mail/MailService.php';

// Run migrations to ensure table exists
try {
    run_migrations();
} catch (Exception $e) {
    // Log error but don't block execution if table already exists
    error_log('Migration failed: ' . $e->getMessage());
}

$response = ['success' => false, 'error' => 'Invalid request'];

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

    if (empty($name) || empty($email) || empty($message)) {
        $response['error'] = 'Please fill in all fields.';
    } elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
        $response['error'] = 'Invalid email format.';
    } else {
        try {
            // 1. Save to database
            $pdo = db();
            $stmt = $pdo->prepare("INSERT INTO contact_submissions (name, email, message) VALUES (?, ?, ?)");
            $stmt->execute([$name, $email, $message]);

            // 2. Send email notification
            $mail_to = getenv('MAIL_TO') ?: 'owner@example.com'; // Fallback email
            $subject = 'New Contact Form Submission from ' . $name;
            $email_body = "You have a new message from your website contact form.\n\n" . 
                          "Name: {$name}\n" . 
                          "Email: {$email}\n" . 
                          "Message:\n{$message}";
            
            MailService::sendMail($mail_to, $subject, nl2br(htmlspecialchars($email_body)), $email_body, ['reply_to' => $email]);

            $response['success'] = true;
            unset($response['error']);

        } catch (PDOException $e) {
            error_log('Database Error: ' . $e->getMessage());
            $response['error'] = 'Could not save your message. Please try again later.';
        } catch (Exception $e) {
            error_log('Mail Error: ' . $e->getMessage());
            // The message was saved to DB, so we can consider this a partial success.
            // For the user, it's a full success, but we log the mail error.
            $response['success'] = true;
            unset($response['error']);
        }
    }
}

echo json_encode($response);