module.exports = (ctx, options) ->

[options, ctx] = [ctx, options] unless options

options ?= {}

ctx ?= this

totalReconnectAttempts = 0

initalDelayMs = options.initialDelayMs ? 700

multiplyFactor = options.multiplyFactor ? 1.4

maxDelayMs = options.maxDelayMs ? 1000 * 15 # 15 seconds

maxReconnectAttempts = options.maxReconnectAttempts ? 50

ctx.clearBackoffTimeout = ->

totalReconnectAttempts = 0

ctx.setBackoffTimeout = (attemptFn, failFn) ->

if totalReconnectAttempts < maxReconnectAttempts

timeout = Math.min initalDelayMs * Math.pow(

multiplyFactor, totalReconnectAttempts

), maxDelayMs

setTimeout attemptFn, timeout

totalReconnectAttempts++

else

failFn()

return ctx