From b69cc453e88b1c0fb98049125a990cada2aa86a3 Mon Sep 17 00:00:00 2001
From: ngc2207 <cfngc3109@gmail.com>
Date: Wed, 11 Dec 2024 19:24:37 +0800
Subject: [PATCH] feat(auth): extend NextAuth user and session to include
 language support

refactor(gitea): make username optional in GiteaProfile interface

style(eslint): add warning rule for empty object type in ESLint configuration
---
 .eslintrc.json             |  5 ++++-
 src/auth.ts                | 26 ++++++++++++++++++++++++--
 src/lib/providers/gitea.ts | 11 ++++++-----
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/.eslintrc.json b/.eslintrc.json
index 3722418..e878823 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,3 +1,6 @@
 {
-  "extends": ["next/core-web-vitals", "next/typescript"]
+  "extends": ["next/core-web-vitals", "next/typescript"],
+  "rules": {
+    "@typescript-eslint/no-empty-object-type": "warn"
+  }
 }
diff --git a/src/auth.ts b/src/auth.ts
index 21d7603..8fef9af 100644
--- a/src/auth.ts
+++ b/src/auth.ts
@@ -1,5 +1,15 @@
-import NextAuth from "next-auth";
-import Gitea from "@/lib/providers/gitea";
+import NextAuth, { type DefaultSession } from "next-auth";
+import Gitea, { GiteaProfile } from "@/lib/providers/gitea";
+
+declare module "next-auth" {
+  interface User extends GiteaProfile {}
+
+  interface Session {
+    user: {
+      language: string;
+    } & DefaultSession["user"];
+  }
+}
 
 export const { handlers, signIn, signOut, auth } = NextAuth({
   providers: [
@@ -12,4 +22,16 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
     }),
   ],
   secret: process.env.AUTH_SECRET,
+  callbacks: {
+    jwt({ token, user }) {
+      if (user) {
+        token.language = user.language;
+      }
+      return token;
+    },
+    session({ session, token }) {
+      session.user.language = token.language as string;
+      return session;
+    },
+  },
 });
diff --git a/src/lib/providers/gitea.ts b/src/lib/providers/gitea.ts
index 28a07d1..e9adc4c 100644
--- a/src/lib/providers/gitea.ts
+++ b/src/lib/providers/gitea.ts
@@ -2,7 +2,7 @@ import { Email as GiteaEmail, User } from "gitea-js";
 import { OAuthConfig, OAuthUserConfig } from "next-auth/providers";
 
 export interface GiteaProfile extends User {
-  username: string;
+  username?: string;
 }
 
 export default function Gitea(
@@ -65,12 +65,13 @@ export default function Gitea(
         name: profile.username ?? profile.login,
         email: profile.email,
         image: profile.avatar_url,
+        language: profile.language,
       };
     },
     options: config,
-    style:{
-      logo:"/gitea.svg",
-      brandColor:"#609926",
-    }
+    style: {
+      logo: "/gitea.svg",
+      brandColor: "#609926",
+    },
   };
 }