implementato modulo Auth.js e pagina Login

src/app/(management)/layout.tsx

@@ -1,15 +1,33 @@
-export default function MarketingLayout({
-    children,
+import { redirect } from "next/navigation";
 
+import { auth } from "@/src/auth";
+import SignOutButton from "@/src/components/auth/SignOutButton";
+
+export default async function ManagementLayout({
+  children,
 }: {
   children: React.ReactNode;
 }) {
+  const session = await auth();
+
+  if (!session?.user) {
+    redirect("/login");
+  }
+
   return (
     <div>
-            <p className="bg-violet-700 text-white w-full text-center py-2">
-                Sono del layout (marketing)
+      <header className="border-b border-zinc-200 bg-white">
+        <div className="mx-auto flex max-w-6xl items-center justify-between px-4 py-3">
+          <div>
+            <p className="text-sm font-medium text-zinc-500">Area gestionale</p>
+            <p className="text-base font-semibold text-zinc-950">
+              {session.user.utente}
             </p>
-            <main>{children}</main>
+          </div>
+          <SignOutButton />
+        </div>
+      </header>
+      <main className="mx-auto max-w-6xl px-4 py-6">{children}</main>
     </div>
   );
 }

src/app/api/auth/[...nextauth]/route.ts

@@ -0,0 +1,3 @@
+import { handlers } from "@/src/auth";
+
+export const { GET, POST } = handlers;

src/app/login/page.tsx

@@ -0,0 +1,89 @@
+import { AuthError } from "next-auth";
+import { redirect } from "next/navigation";
+
+import { auth, signIn } from "@/src/auth";
+
+type LoginPageProps = {
+  searchParams?: Promise<{
+    error?: string;
+  }>;
+};
+
+async function login(formData: FormData) {
+  "use server";
+
+  try {
+    await signIn("credentials", {
+      identifier: formData.get("identifier"),
+      password: formData.get("password"),
+      redirectTo: "/",
+    });
+  } catch (error) {
+    if (error instanceof AuthError) {
+      redirect("/login?error=CredentialsSignin");
+    }
+
+    throw error;
+  }
+}
+
+export default async function LoginPage({ searchParams }: LoginPageProps) {
+  const session = await auth();
+
+  if (session?.user) {
+    redirect("/");
+  }
+
+  const params = await searchParams;
+  const hasError = params?.error === "CredentialsSignin";
+
+  return (
+    <main className="flex min-h-[calc(100vh-4rem)] items-center justify-center bg-zinc-50 px-4 py-12">
+      <section className="w-full max-w-sm rounded-lg border border-zinc-200 bg-white p-6 shadow-sm">
+        <div className="mb-6">
+          <h1 className="text-2xl font-semibold text-zinc-950">Accesso</h1>
+          <p className="mt-2 text-sm text-zinc-600">
+            Entra in MagRicambi con utente o email.
+          </p>
+        </div>
+
+        {hasError ? (
+          <p className="mb-4 rounded-md border border-red-200 bg-red-50 px-3 py-2 text-sm text-red-700">
+            Credenziali non valide oppure utente non attivo.
+          </p>
+        ) : null}
+
+        <form action={login} className="space-y-4">
+          <label className="block">
+            <span className="text-sm font-medium text-zinc-700">Utente o email</span>
+            <input
+              required
+              autoComplete="username"
+              name="identifier"
+              type="text"
+              className="mt-1 w-full rounded-md border border-zinc-300 px-3 py-2 text-zinc-950 outline-none transition-colors focus:border-zinc-900"
+            />
+          </label>
+
+          <label className="block">
+            <span className="text-sm font-medium text-zinc-700">Password</span>
+            <input
+              required
+              autoComplete="current-password"
+              name="password"
+              type="password"
+              className="mt-1 w-full rounded-md border border-zinc-300 px-3 py-2 text-zinc-950 outline-none transition-colors focus:border-zinc-900"
+            />
+          </label>
+
+          <button
+            type="submit"
+            className="w-full rounded-md bg-zinc-950 px-4 py-2 font-medium text-white transition-colors hover:bg-zinc-800"
+          >
+            Accedi
+          </button>
+        </form>
+      </section>
+    </main>
+  );
+}

src/auth.ts

@@ -0,0 +1,105 @@
+import bcrypt from "bcrypt";
+import NextAuth from "next-auth";
+import Credentials from "next-auth/providers/credentials";
+import type { ResultSetHeader, RowDataPacket } from "mysql2";
+
+import { db } from "@/src/lib/db";
+import type { DbUser, UserRole } from "@/src/types/user";
+
+type DbUserRow = DbUser & RowDataPacket;
+
+function isUserRole(value: string): value is UserRole {
+  return ["admin", "manager", "user", "sviluppo"].includes(value);
+}
+
+async function findActiveUser(identifier: string): Promise<DbUser | null> {
+  const [rows] = await db.execute<DbUserRow[]>(
+    `SELECT id, utente, mail, password, ruolo, attivo, last_login
+     FROM utenti
+     WHERE attivo = 1
+       AND (utente = :identifier OR mail = :identifier)
+     LIMIT 1`,
+    { identifier },
+  );
+
+  const user = rows[0];
+
+  if (!user || !isUserRole(user.ruolo)) {
+    return null;
+  }
+
+  return user;
+}
+
+async function updateLastLogin(userId: number): Promise<void> {
+  await db.execute<ResultSetHeader>(
+    "UPDATE utenti SET last_login = NOW() WHERE id = :userId",
+    { userId },
+  );
+}
+
+export const { handlers, auth, signIn, signOut } = NextAuth({
+  session: {
+    strategy: "jwt",
+  },
+  pages: {
+    signIn: "/login",
+  },
+  providers: [
+    Credentials({
+      name: "Credenziali",
+      credentials: {
+        identifier: { label: "Utente o email", type: "text" },
+        password: { label: "Password", type: "password" },
+      },
+      async authorize(credentials) {
+        const identifier = String(credentials?.identifier ?? "").trim();
+        const password = String(credentials?.password ?? "");
+
+        if (!identifier || !password) {
+          return null;
+        }
+
+        const user = await findActiveUser(identifier);
+
+        if (!user) {
+          return null;
+        }
+
+        const passwordMatches = await bcrypt.compare(password, user.password);
+
+        if (!passwordMatches) {
+          return null;
+        }
+
+        await updateLastLogin(user.id);
+
+        return {
+          id: String(user.id),
+          name: user.utente,
+          email: user.mail,
+          ruolo: user.ruolo,
+          utente: user.utente,
+        };
+      },
+    }),
+  ],
+  callbacks: {
+    jwt({ token, user }) {
+      if (user) {
+        token.id = user.id;
+        token.ruolo = user.ruolo;
+        token.utente = user.utente;
+      }
+
+      return token;
+    },
+    session({ session, token }) {
+      session.user.id = token.id ?? "";
+      session.user.ruolo = token.ruolo ?? "user";
+      session.user.utente = token.utente ?? session.user.name ?? "";
+
+      return session;
+    },
+  },
+});

src/components/auth/SignOutButton.tsx

@@ -0,0 +1,19 @@
+import { signOut } from "@/src/auth";
+
+export default function SignOutButton() {
+  return (
+    <form
+      action={async () => {
+        "use server";
+        await signOut({ redirectTo: "/login" });
+      }}
+    >
+      <button
+        type="submit"
+        className="rounded-md border border-zinc-300 px-3 py-2 text-sm font-medium text-zinc-700 transition-colors hover:bg-zinc-100"
+      >
+        Esci
+      </button>
+    </form>
+  );
+}

src/types/next-auth.d.ts

@@ -4,19 +4,23 @@ import type { UserRole } from "./user";
 declare module "next-auth" {
   interface Session {
     user: {
-      id: number;
+      id: string;
       ruolo: UserRole;
+      utente: string;
     } & DefaultSession["user"];
   }
 
   interface User {
+    id: string;
     ruolo: UserRole;
+    utente: string;
   }
 }
 
-declare module "next-auth/jwt" {
+declare module "@auth/core/jwt" {
   interface JWT {
-    id?: number;
+    id?: string;
     ruolo?: UserRole;
+    utente?: string;
   }
 }