feat: pagina contatti e api email con validazione testata

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/lib/contact.ts

@@ -0,0 +1,31 @@
+export interface ContactData {
+  firstName: string; lastName: string; phone: string;
+  email: string; message: string; website: string;
+}
+
+const EMAIL_RE = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+
+function str(v: unknown, max: number): string {
+  return typeof v === 'string' ? v.trim().slice(0, max + 1) : '';
+}
+
+export function validateContact(data: unknown):
+  | { ok: true; value: ContactData }
+  | { ok: false; error: string } {
+  if (typeof data !== 'object' || data === null) return { ok: false, error: 'Dati non validi.' };
+  const d = data as Record<string, unknown>;
+  const value: ContactData = {
+    firstName: str(d.firstName, 100),
+    lastName: str(d.lastName, 100),
+    phone: str(d.phone, 40),
+    email: str(d.email, 200),
+    message: str(d.message, 5000),
+    website: str(d.website, 200),
+  };
+  if (value.website) return { ok: false, error: 'Richiesta non valida.' };
+  if (!value.firstName) return { ok: false, error: 'Il nome è obbligatorio.' };
+  if (!EMAIL_RE.test(value.email)) return { ok: false, error: 'Inserisci una e-mail valida.' };
+  if (!value.message) return { ok: false, error: 'Il messaggio è obbligatorio.' };
+  if (value.message.length > 5000) return { ok: false, error: 'Messaggio troppo lungo.' };
+  return { ok: true, value };
+}

src/lib/mailer.ts

@@ -0,0 +1,25 @@
+import nodemailer from 'nodemailer';
+import { getEnv } from './env';
+import type { ContactData } from './contact';
+
+export async function sendContactEmail(data: ContactData): Promise<void> {
+  const transporter = nodemailer.createTransport({
+    host: getEnv('SMTP_HOST'),
+    port: Number(getEnv('SMTP_PORT', '587')),
+    secure: Number(getEnv('SMTP_PORT', '587')) === 465,
+    auth: { user: getEnv('SMTP_USER'), pass: getEnv('SMTP_PASS') },
+  });
+  await transporter.sendMail({
+    from: getEnv('CONTACT_FROM'),
+    to: getEnv('CONTACT_TO', 'info@insanitylab.it'),
+    replyTo: data.email,
+    subject: `Nuovo contatto dal sito: ${data.firstName} ${data.lastName}`.trim(),
+    text: [
+      `Nome: ${data.firstName} ${data.lastName}`.trim(),
+      data.phone && `Telefono: ${data.phone}`,
+      `E-mail: ${data.email}`,
+      '',
+      data.message,
+    ].filter(Boolean).join('\n'),
+  });
+}