import { NextAuthOptions } from "next-auth";
import CredentialsProvider from "next-auth/providers/credentials";
import bcrypt from "bcryptjs";
import prisma from "./prisma";

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 },
        });

        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.name,
          role: user.role,
          department: user.department,
          managerId: user.managerId,
        };
      },
    }),
  ],
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        token.id = user.id;
        token.role = (user as any).role;
        token.department = (user as any).department;
        token.managerId = (user as any).managerId;
      }
      return token;
    },
    async session({ session, token }) {
      if (session.user) {
        (session.user as any).id = token.id;
        (session.user as any).role = token.role;
        (session.user as any).department = token.department;
        (session.user as any).managerId = token.managerId;
      }
      return session;
    },
  },
  pages: {
    signIn: "/login",
  },
  session: {
    strategy: "jwt",
  },
  secret: process.env.NEXTAUTH_SECRET,
};