auth.ts

import NextAuth, { type DefaultSession } from 'next-auth'
import CredentialsProvider from 'next-auth/providers/credentials' // Import CredentialsProvider

declare module 'next-auth' {
  interface Session {
    user: {
      /** The user's id. */
      id: string
      jwt: string
      role: string
    } & DefaultSession['user']
  }
}

export const {
  handlers: { GET, POST },
  auth
} = NextAuth({
  // Specify the authentication providers
  secret: "sdfdf3432T%RGTF#$t",
  providers: [
    // CredentialsProvider for username and password authentication
    CredentialsProvider({
      name: 'Credentials',
      credentials: {
        username: { label: "Username", type: "text" },
        password: { label: "Password", type: "password" }
      },
      async authorize(credentials, req) {
        // Replace "/api/auth" with your actual authentication endpoint
        const res = await fetch(`http://localhost:3000/api/u`, {
        // const res = await fetch(`https://hai-doc-prod.coffeecodes.in/api/u`, {
          method: 'POST',
          body: JSON.stringify(credentials),
          headers: { "Content-Type": "application/json" },
        })
        const r = await res.json()
        console.log(r)
        let user = {
          id: "",
          message: "",
          type: "",
          token: ""
        }
        user.message = "Logged in";
        user.token = r.data;
        if (!res.ok) {
          throw new Error(user.message);
        }

        // If the response is ok and user data is returned, authenticate the user
        if (res.ok && user) {
          return {...user}
        }
        return null;
      }
    }),
  ],
  callbacks: {
    jwt({ token, user }) {
      if (user  && 'token' in user && 'type' in user) {
        token.jwt = user.token
        token.type = user.type
      }
      return token
    },
    session({ session, token }) {
      // Assign the user ID from the token to the session's user object
      if (session?.user) {
        session.user.jwt = String(token.jwt)
        session.user.role = String(token.type)
      }
      return session
    }
  },
  pages: {
    signIn: '/login', // Custom sign-in page URL
  }
});