<?php
// Basic security: disable direct access
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    header('Location: index.php');
    exit;
}

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

// --- Form data ---
$name = trim($_POST['name'] ?? '');
$email = trim($_POST['email'] ?? '');
$message = trim($_POST['message'] ?? '');

// --- Validation ---
if (empty($name) || empty($email) || empty($message) || !filter_var($email, FILTER_VALIDATE_EMAIL)) {
    header('Location: index.php?status=validation_error#contact');
    exit;
}

try {
    // --- Database Persistence ---
    $pdo = db(); // Get PDO instance from db/config.php

    // Idempotent table creation
    $pdo->exec("CREATE TABLE IF NOT EXISTS contact_submissions (
        id INT AUTO_INCREMENT PRIMARY KEY,
        name VARCHAR(255) NOT NULL,
        email VARCHAR(255) NOT NULL,
        message TEXT NOT NULL,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    )");

    // Insert the new submission
    $stmt = $pdo->prepare("INSERT INTO contact_submissions (name, email, message) VALUES (?, ?, ?)");
    $stmt->execute([$name, $email, $message]);

    // --- Email Notification ---
    // The recipient email address. If null, MailService will use MAIL_TO from .env
    $recipient = null; 
    $subject = "New Contact Form Submission from " . htmlspecialchars($name);
    
    $mailResult = MailService::sendContactMessage($name, $email, $message, $recipient, $subject);

    if (!empty($mailResult['success'])) {
        header('Location: index.php?status=success#contact');
    } else {
        // Log error if you have a logging system
        // error_log("Mail sending failed: " . $mailResult['error']);
        header('Location: index.php?status=error#contact');
    }

} catch (PDOException $e) {
    // Log database error
    // error_log("Database error: " . $e->getMessage());
    header('Location: index.php?status=error#contact');
    exit;
} catch (Exception $e) {
    // Log other errors (e.g., mailer)
    // error_log("General error: " . $e->getMessage());
    header('Location: index.php?status=error#contact');
    exit;
}