platform/plugins/chunter-resources/src/utils.ts

import contact, { EmployeeAccount } from '@anticrm/contact'
import { Account, Client, Ref, Timestamp } from '@anticrm/core'

export async function getUser (client: Client, user: Ref<EmployeeAccount> | Ref<Account>): Promise<EmployeeAccount | undefined>  {
  return await client.findOne(contact.class.EmployeeAccount, { _id: user as Ref<EmployeeAccount> })
}

export function getTime (time: number): string {
  let options: Intl.DateTimeFormatOptions = { hour: 'numeric', minute: 'numeric'}
  if (!isToday(time)) {
    options = {
      month: 'numeric',
       day: 'numeric',
      ...options
    }
  }

  return new Date(time).toLocaleString('default', options)
}

export function isToday (time: number): boolean {
  const current = new Date()
  const target = new Date(time)
  return current.getDate() === target.getDate() && current.getMonth() === target.getMonth() && current.getFullYear() === target.getFullYear()
}