refactor: replace signIn callback with signIn event, adjust getUserByEmail in adapter to check provider (#1223)

* refactor: replace signIn callback with signIn event, adjust getUserByEmail in adapter to check provider

* test: adjusting tests for adapter and events

* docs: add comments for unknown auth provider

* fix: missing dayjs import

packages/auth/configuration.ts

@@ -4,18 +4,21 @@ import NextAuth from "next-auth";
 import Credentials from "next-auth/providers/credentials";
 
 import { db } from "@homarr/db";
+import type { SupportedAuthProvider } from "@homarr/definitions";
 
-import { adapter } from "./adapter";
-import { createSessionCallback, createSignInCallback } from "./callbacks";
+import { createAdapter } from "./adapter";
+import { createSessionCallback } from "./callbacks";
 import { env } from "./env.mjs";
-import { createCredentialsConfiguration } from "./providers/credentials/credentials-provider";
+import { createSignInEventHandler } from "./events";
+import { createCredentialsConfiguration, createLdapConfiguration } from "./providers/credentials/credentials-provider";
 import { EmptyNextAuthProvider } from "./providers/empty/empty-provider";
 import { filterProviders } from "./providers/filter-providers";
 import { OidcProvider } from "./providers/oidc/oidc-provider";
 import { createRedirectUri } from "./redirect";
-import { sessionTokenCookieName } from "./session";
+import { generateSessionToken, sessionTokenCookieName } from "./session";
 
-export const createConfiguration = (isCredentialsRequest: boolean, headers: ReadonlyHeaders | null) =>
+// See why it's unknown in the [...nextauth]/route.ts file
+export const createConfiguration = (provider: SupportedAuthProvider | "unknown", headers: ReadonlyHeaders | null) =>
   NextAuth({
     logger: {
       error: (code, ...message) => {
@@ -30,21 +33,25 @@ export const createConfiguration = (isCredentialsRequest: boolean, headers: Read
       },
     },
     trustHost: true,
-    adapter,
+    adapter: createAdapter(db, provider),
     providers: filterProviders([
       Credentials(createCredentialsConfiguration(db)),
+      Credentials(createLdapConfiguration(db)),
       EmptyNextAuthProvider(),
       OidcProvider(headers),
     ]),
     callbacks: {
       session: createSessionCallback(db),
-      signIn: createSignInCallback(adapter, db, isCredentialsRequest),
+    },
+    events: {
+      signIn: createSignInEventHandler(db),
     },
     redirectProxyUrl: createRedirectUri(headers, "/api/auth"),
     secret: "secret-is-not-defined-yet", // TODO: This should be added later
     session: {
       strategy: "database",
       maxAge: env.AUTH_SESSION_EXPIRY_TIME,
+      generateSessionToken,
     },
     pages: {
       signIn: "/auth/login",