refactor: dynamically generated login page

src/auth.ts

@@ -1,16 +1,49 @@
 import NextAuth from 'next-auth';
+
+import type { Provider } from 'next-auth/providers';
+import Credentials from 'next-auth/providers/credentials';
+
 import Authentik from 'next-auth/providers/authentik';
 
+const providers: Provider[] = [
+  !process.env.DISABLE_PASSWORD_LOGIN &&
+    Credentials({
+      credentials: { password: { label: 'Password', type: 'password' } },
+      authorize(c) {
+        if (c.password !== 'password') return null;
+        return {
+          id: 'test',
+          name: 'Test User',
+          email: 'test@example.com',
+        };
+      },
+    }),
+  process.env.AUTH_AUTHENTIK_ID && Authentik,
+].filter(Boolean) as Provider[];
+
+export const providerMap = providers
+  .map((provider) => {
+    if (typeof provider === 'function') {
+      const providerData = provider();
+      return { id: providerData.id, name: providerData.name };
+    } else {
+      return { id: provider.id, name: provider.name };
+    }
+  })
+  .filter((provider) => provider.id !== 'credentials');
+
 export const { handlers, signIn, signOut, auth } = NextAuth({
-  providers: [process.env.AUTH_AUTHENTIK_ISSUER ? Authentik : null].filter(
-    (x) => x !== null,
-  ),
-  callbacks: {
-    authorized: async ({ auth }) => {
-      return !!auth?.user;
-    },
+  providers,
+  session: {
+    strategy: 'jwt',
   },
   pages: {
     signIn: '/login',
+    signOut: '/logout',
+  },
+  callbacks: {
+    authorized({ auth }) {
+      return !!auth?.user;
+    },
   },
 });