import { NextAuthOptions } from 'next-auth';
import CredentialsProvider from 'next-auth/providers/credentials';
import { PrismaAdapter } from '@next-auth/prisma-adapter';
import { prisma } from './db';
import bcrypt from 'bcryptjs';

export const authOptions: NextAuthOptions = {
  adapter: PrismaAdapter(prisma),
  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 },
        });
        if (!user) {
          return null;
        }
        const isValid = await bcrypt.compare(credentials.password, user.password);
        if (!isValid) {
          return null;
        }
        return {
          id: user.id,
          email: user.email,
          name: `${user.firstName ?? ''} ${user.lastName ?? ''}`.trim(),
          isAdmin: user.isAdmin,
        };
      },
    }),
  ],
  session: {
    strategy: 'jwt',
  },
  pages: {
    signIn: '/login',
  },
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        token.id = user.id;
        token.isAdmin = (user as any).isAdmin;
      }
      return token;
    },
    async session({ session, token }) {
      if (session?.user && token?.id) {
        (session.user as { id?: string; isAdmin?: boolean }).id = token.id as string;
        (session.user as { id?: string; isAdmin?: boolean }).isAdmin = token.isAdmin as boolean;
      }
      return session;
    },
  },
};