import NextAuth from "next-auth";
import Credentials from "next-auth/providers/credentials";
import bcrypt from "bcryptjs";
import { prisma } from "@/lib/prisma";

export const { handlers, auth, signIn, signOut } = NextAuth({
  trustHost: true,
  session: { strategy: "jwt" },
  pages: {
    signIn: "/connexion",
  },
  providers: [
    Credentials({
      credentials: {
        email: {},
        password: {},
      },
      authorize: async (credentials) => {
        const email = credentials?.email as string | undefined;
        const password = credentials?.password as string | undefined;
        if (!email || !password) return null;

        const user = await prisma.user.findUnique({ where: { email } });
        if (!user) return null;

        const valid = await bcrypt.compare(password, user.passwordHash);
        if (!valid) return null;

        return {
          id: user.id,
          email: user.email,
          role: user.role,
          pharmacyId: user.pharmacyId,
        };
      },
    }),
  ],
  callbacks: {
    jwt: async ({ token, user }) => {
      if (user) {
        token.role = user.role;
        token.pharmacyId = user.pharmacyId;
      }
      return token;
    },
    session: async ({ session, token }) => {
      if (session.user) {
        session.user.id = token.sub as string;
        session.user.role = token.role as "ADMIN" | "PHARMACY";
        session.user.pharmacyId = token.pharmacyId as string | null;
      }
      return session;
    },
  },
});