import { auth0Integration } from "@/integrations"
import { User } from "@/models"
import { Op } from "@sequelize/core"
import BaseService from "@/services/base-service"

export class FindFromAuth0TokenService extends BaseService {
  constructor(private token: string) {
    super()
  }

  async perform(): Promise<User> {
    const { auth0Subject, email } = await auth0Integration.getUserInfo(this.token)

    const existingUser = await User.withScope(["asCurrentUser"]).findOne({
      where: { auth0Subject },
    })

    if (existingUser) {
      return existingUser
    }

    const firstTimeUser = await User.withScope(["asCurrentUser"]).findOne({
      where: { [Op.or]: [{ auth0Subject: email }, { email: email }] },
    })

    if (firstTimeUser) {
      await firstTimeUser.update({ auth0Subject })
      return firstTimeUser
    }

    throw new Error("No user found for this token.")
  }
}

export default FindFromAuth0TokenService