// Map user ID to section codes that the user is subscribed to.
export const exampleDb = {
  user1: {
    subscriptions: [1, 2, 3],
    email: '[email protected]'
  },
  user2: {
    subscriptions: [1, 5, 9],
    email: '[email protected]',
  },
  user3: {
    subscriptions: [2, 7, 9],
    email: '[email protected]',
}

// Information 
export type ClassUpdate = { 
  section: number
  status: string
}

export type NotifyParams = {
  updates: ClassUpdate[]
}

import nodemailer from 'nodemailer'

async function notify(params: NotifyParams) {
  //
}