implemented step 18 by Gemini

- Contact formular and emailer script

src/Templates/emailer.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * Universal Form Handler for WebWizard exported sites.
+ * Handles both SMTP mailing and local file storage.
+ */
+
+header('Content-Type: application/json; charset=utf-8');
+
+$config = [];
+if (file_exists('config.json')) {
+	$config = json_decode(file_get_contents('config.json'), true);
+}
+
+function sendResponse(bool $success, string $message) {
+	echo json_encode(['success' => $success, 'message' => $message]);
+	exit;
+}
+
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+	sendResponse(false, 'Method not allowed.');
+}
+
+// Honeypot spam protection
+if (!empty($_POST['website'])) {
+	sendResponse(true, 'Spam detected.'); // Fake success for bots
+}
+
+$name = trim($_POST['name'] ?? '');
+$email = trim($_POST['email'] ?? '');
+$message = trim($_POST['message'] ?? '');
+
+if (!$name || !$email || !$message) {
+	sendResponse(false, 'Prosím vyplňte všetky povinné polia.');
+}
+
+if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
+	sendResponse(false, 'Neplatná emailová adresa.');
+}
+
+$mode = $config['form_mode'] ?? 'local';
+
+if ($mode === 'local') {
+	// Save to messages directory
+	$msgDir = 'messages';
+	if (!is_dir($msgDir)) {
+		mkdir($msgDir, 0777, true);
+	}
+
+	$msgId = date('Ymd-His') . '-' . bin2hex(random_bytes(4));
+	$msgData = [
+		'id' => $msgId,
+		'timestamp' => date('c'),
+		'sender_name' => $name,
+		'sender_email' => $email,
+		'message' => $message
+	];
+
+	if (file_put_contents($msgDir . '/' . $msgId . '.json', json_encode($msgData, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE))) {
+		sendResponse(true, 'Vaša správa bola úspešne uložená.');
+	} else {
+		sendResponse(false, 'Nepodarilo sa uložiť správu.');
+	}
+} else {
+	// SMTP / Mail mode
+	$to = $config['smtp']['recipient'] ?? '';
+	if (!$to) {
+		sendResponse(false, 'Cieľový email nie je nakonfigurovaný.');
+	}
+
+	$subject = "Nová správa z webu: " . ($config['site_name'] ?? 'WebWizard');
+	$body = "Meno: $name\nEmail: $email\n\nSpráva:\n$message";
+	$headers = "From: webwizard@{$_SERVER['HTTP_HOST']}\r\n" .
+			   "Reply-To: $email\r\n" .
+			   "X-Mailer: PHP/" . phpversion();
+
+	// Using standard mail() as fallback for MVP if no complex SMTP is provided
+	if (mail($to, $subject, $body, $headers)) {
+		sendResponse(true, 'Vaša správa bola úspešne odoslaná.');
+	} else {
+		sendResponse(false, 'Nepodarilo sa odoslať email.');
+	}
+}