gameRateLimits.js

const {getMentionUserString} = require('../functions/utils')

const gamesRates = {
  'roll-dice-even-odd': 3000,
  'roll-dice-three': 3000,
  'spin-slot-machine-four': 1800,
}

const RATE_LIMITS = {}

module.exports = (ctx, next) => {
  const userId = ctx.from.id
  const gamesActions = Object.keys(gamesRates)
  const callbackData = ctx.callbackQuery && ctx.callbackQuery.data
  const isGameCallback = callbackData && gamesActions.includes(callbackData)
  const rateLimitMs = gamesRates[callbackData]
  const timePassed = new Date() - RATE_LIMITS[userId]

  if (
    isGameCallback &&
    RATE_LIMITS[userId] &&
    timePassed < rateLimitMs
  ) {
    ctx.log.warn(`[${callbackData}] blocked double action - ${timePassed} ms`)
    ctx.log.telegram.common(`🚨 ${getMentionUserString(ctx.from)} flood - ${callbackData} - ${timePassed} ms`)
    return ctx.answerCbQuery(ctx.i18n.t('games.blockedDoubleAction', {timePassed}))
  }

  return next().then(() => {
    if (isGameCallback) {
      RATE_LIMITS[userId] = new Date()
    }
    return true
  })
}