fix: nextauth route and eslint config

.eslintrc.json

@@ -1,3 +1,3 @@
 {
   "extends": "next/core-web-vitals"
-}
+}

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

@@ -1,71 +1,6 @@
+import { authOptions } from "@/utils/authOptions";
 import NextAuth from "next-auth";
-import { Account, User as AuthUser } from "next-auth";
-import GithubProvider from "next-auth/providers/github";
-import CredentialsProvider from "next-auth/providers/credentials";
-import bcrypt from "bcryptjs";
-import User from "@/models/User";
-import connect from "@/utils/db";
 
-export const authOptions: any = {
-  // Configure one or more authentication providers
-  providers: [
-    CredentialsProvider({
-      id: "credentials",
-      name: "Credentials",
-      credentials: {
-        email: { label: "Email", type: "text" },
-        password: { label: "Password", type: "password" },
-      },
-      async authorize(credentials: any) {
-        await connect();
-        try {
-          const user = await User.findOne({ email: credentials.email });
-          if (user) {
-            const isPasswordCorrect = await bcrypt.compare(
-              credentials.password,
-              user.password
-            );
-            if (isPasswordCorrect) {
-              return user;
-            }
-          }
-        } catch (err: any) {
-          throw new Error(err);
-        }
-      },
-    }),
-    GithubProvider({
-      clientId: process.env.GITHUB_ID ?? "",
-      clientSecret: process.env.GITHUB_SECRET ?? "",
-    }),
-    // ...add more providers here
-  ],
-  callbacks: {
-    async signIn({ user, account }: { user: AuthUser; account: Account }) {
-      if (account?.provider == "credentials") {
-        return true;
-      }
-      if (account?.provider == "github") {
-        await connect();
-        try {
-          const existingUser = await User.findOne({ email: user.email });
-          if (!existingUser) {
-            const newUser = new User({
-              email: user.email,
-            });
-
-            await newUser.save();
-            return true;
-          }
-          return true;
-        } catch (err) {
-          console.log("Error saving user", err);
-          return false;
-        }
-      }
-    },
-  },
-};
 
 const handler = NextAuth(authOptions);