import { NextAuthOptions } from 'next-auth';
import CredentialsProvider from 'next-auth/providers/credentials';
import { prisma } from '@/lib/prisma';

// Extend the built-in User type
declare module "next-auth" {
  interface User {
    id: string;
    email: string;
    name?: string;
  }
  
  interface Session {
    user: User;
  }
}

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;
        }

        const user = await prisma.user.findUnique({
          where: { email: credentials.email },
          select: {
            id: true,
            email: true,
            password: true
          }
        });

        if (!user) {
          return null;
        }

        // In production, you should use proper password hashing
        if (user.password !== credentials.password) {
          return null;
        }

        return {
          id: user.id,
          email: user.email,
          name: user.email.split('@')[0]
        };
      }
    })
  ],
  session: {
    strategy: 'jwt',
    maxAge: 30 * 24 * 60 * 60, // 30 days
  },
  jwt: {
    maxAge: 30 * 24 * 60 * 60, // 30 days
  },
  pages: {
    signIn: '/login',
  },
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        token.id = user.id;
      }
      return token;
    },
    async session({ session, token }) {
      if (session.user) {
        session.user.id = token.id as string;
      }
      return session;
    }
  }
};