auth.ts

import NextAuth from "next-auth"
import Credentials from "next-auth/providers/credentials"
import { PrismaAdapter } from "@auth/prisma-adapter"
import { prisma } from "@/lib/prisma"
import bcrypt from "bcryptjs"
import { z } from "zod"

const loginSchema = z.object({
  email: z.string().email(),
  password: z.string().min(6),
})

export const { handlers, signIn, signOut, auth } = NextAuth({
  adapter: PrismaAdapter(prisma),
  session: {
    strategy: "jwt",
  },
  pages: {
    signIn: "/login",
  },
  providers: [
    Credentials({
      credentials: {
        email: { label: "Email", type: "email" },
        password: { label: "Password", type: "password" },
      },
      async authorize(credentials) {
        const validatedFields = loginSchema.safeParse(credentials)

        if (!validatedFields.success) {
          return null
        }

        const { email, password } = validatedFields.data

        const user = await prisma.user.findUnique({
          where: { email },
        })

        if (!user || !user.password) {
          return null
        }

        const passwordsMatch = await bcrypt.compare(password, user.password)

        if (!passwordsMatch) {
          return null
        }

        return {
          id: user.id,
          email: user.email,
          name: user.name,
          image: user.image,
        }
      },
    }),
  ],
  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
    },
  },
})