import { NextAuthOptions, User } from 'next-auth';
import CredentialsProvider from 'next-auth/providers/credentials';
import { JWT } from 'next-auth/jwt';

export const authOptions: NextAuthOptions = {
  providers: [
    CredentialsProvider({
      name: 'Credentials',
      credentials: {
        email: { label: 'Email', type: 'email' },
        password: { label: 'Password', type: 'password' }
      },
      async authorize(credentials) {
        if (!credentials?.email || !credentials?.password) {
          return null;
        }

        // TODO: Implement actual authentication logic
        // For now, generate a unique ID based on email
        const userId = Buffer.from(credentials.email).toString('base64');
        
        return {
          id: userId,
          email: credentials.email,
          name: credentials.email.split('@')[0],
          first_name: credentials.email.split('@')[0],
          last_name: '',
          username: credentials.email,
          role: ['user']
        } satisfies User;
      }
    })
  ],
  session: {
    strategy: 'jwt',
    maxAge: 30 * 24 * 60 * 60, // 30 days
  },
  jwt: {
    maxAge: 30 * 24 * 60 * 60, // 30 days
  },
  secret: process.env.NEXTAUTH_SECRET,
  pages: {
    signIn: '/courrier/login',
  },
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        token.id = user.id;
        token.email = user.email;
        token.first_name = user.first_name;
        token.last_name = user.last_name;
        token.username = user.username;
        token.role = user.role;
      }
      return token;
    },
    async session({ session, token }) {
      if (token) {
        session.user.id = token.id as string;
        session.user.email = token.email as string;
        session.user.first_name = token.first_name as string;
        session.user.last_name = token.last_name as string;
        session.user.username = token.username as string;
        session.user.role = token.role as string[];
      }
      return session;
    }
  }
};