import * as admin from 'firebase-admin'

import { Contract } from '../../common/contract'
import { User } from '../../common/user'

export const getValue = async <T>(collection: string, doc: string) => {
  const snap = await admin.firestore().collection(collection).doc(doc).get()

  return snap.exists ? (snap.data() as T) : undefined
}

export const getValues = async <T>(query: admin.firestore.Query) => {
  const snap = await query.get()
  return snap.docs.map((doc) => doc.data() as T)
}

export const getContract = (contractId: string) => {
  return getValue<Contract>('contracts', contractId)
}

export const getUser = (userId: string) => {
  return getValue<User>('users', userId)
}