import { NextAuthOptions } from "next-auth"
import CredentialsProvider from "next-auth/providers/credentials"
import { usersService } from "@/services/users"

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
        }

        try {
          // Chercher l'utilisateur dans la base de données
          const user = await usersService.getUserByEmail(credentials.email)
          
          if (!user) {
            return null
          }

          // Vérifier le mot de passe
          const isValidPassword = await usersService.verifyPassword(
            credentials.password,
            user.password
          )

          if (!isValidPassword) {
            return null
          }

          return {
            id: user.id,
            email: user.email,
            name: user.name || `${user.firstName || ''} ${user.lastName || ''}`.trim() || user.email,
            firstName: user.firstName || undefined,
            lastName: user.lastName || undefined,
            avatar: user.avatar || undefined,
            role: user.role,
          }
        } catch (error) {
          console.error('Auth error:', error)
          return null
        }
      }
    })
  ],
  pages: {
    signIn: "/login",
  },
  session: {
    strategy: "jwt",
  },
  callbacks: {
    async jwt({ token, user }) {
      if (user) {
        token.id = user.id
        token.firstName = user.firstName
        token.lastName = user.lastName
        token.avatar = user.avatar
        token.role = user.role
      }
      return token
    },
    async session({ session, token }) {
      if (token && session.user) {
        session.user.id = token.id as string
        session.user.firstName = token.firstName as string | undefined
        session.user.lastName = token.lastName as string | undefined
        session.user.avatar = token.avatar as string | undefined
        session.user.role = token.role as string
      }
      return session
    },
  },
}