manifold/web/hooks/use-bets.ts

import { useEffect, useState } from 'react'
import { Contract } from '../../common/contract'
import { Bet, listenForBets, withoutAnteBets } from '../lib/firebase/bets'

export const useBets = (contractId: string) => {
  const [bets, setBets] = useState<Bet[] | undefined>()

  useEffect(() => {
    if (contractId) return listenForBets(contractId, setBets)
  }, [contractId])

  return bets
}

export const useBetsWithoutAntes = (contract: Contract, initialBets: Bet[]) => {
  const [bets, setBets] = useState<Bet[]>(
    withoutAnteBets(contract, initialBets).sort(
      (bet1, bet2) => bet1.createdTime - bet2.createdTime
    )
  )

  useEffect(() => {
    return listenForBets(contract.id, (bets) => {
      setBets(withoutAnteBets(contract, bets))
    })
  }, [contract])

  return bets
}