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

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

$response = ['success' => false, 'message' => 'An unknown error occurred.'];

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

    if (empty($name) || empty($email) || empty($message)) {
        $response['message'] = 'Please fill in all fields.';
        echo json_encode($response);
        exit;
    }

    if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
        $response['message'] = 'Invalid email format.';
        echo json_encode($response);
        exit;
    }

    try {
        $pdo = db();
        $sql = "INSERT INTO contact_submissions (name, email, message) VALUES (?, ?, ?)";
        $stmt = $pdo->prepare($sql);
        
        if ($stmt->execute([$name, $email, $message])) {
            // Database insert was successful, now send email
            $mailResult = MailService::sendContactMessage($name, $email, $message);

            if (!empty($mailResult['success'])) {
                $response['success'] = true;
                $response['message'] = 'Thank you for your message. We will get back to you shortly.';
            } else {
                // Email failed, but data is saved. This might be a configuration issue.
                $response['success'] = true; // Still a success from user's perspective
                $response['message'] = 'Thank you for your message. It has been received.';
                // Log the email error if possible, e.g., error_log("MailService Error: " . $mailResult['error']);
            }
        } else {
            $response['message'] = 'Error: Could not save your message.';
        }
    } catch (PDOException $e) {
        // Log database error, don't show specific SQL errors to user
        error_log($e->getMessage());
        $response['message'] = 'A server error occurred. Please try again later.';
    } catch (Exception $e) {
        error_log($e->getMessage());
        $response['message'] = 'An unexpected error occurred. Please try again later.';
    }

} else {
    $response['message'] = 'Invalid request method.';
}

echo json_encode($response);
?>