gistfile1.scala

class Foo {

  def fetchLatestActivityStats(orgCode: String): Future[String] = {
    val yesterday = DateTime.now - 1.day
    recursivelyLatestFetchActivityStats(yesterday, orgCode, 0)
  }

  def recursivelyLatestFetchActivityStats(
    date: DateTime, org: String, errCount: Int): Future[String] = {

    val key = "activity_stats/%s/%s/stats.json"
    archiveBucket(key).map(fileItemOpt => {
      fileItemOpt match {
        case Some(fileItem) => date
        case None => {
          if (errCount >= 7) {
            "-1"
          } else {
            val newDate = date - 1.day
            val newErrCount = errCount + 1
            recursivelyLatestFetchActivityStats(newDate, org, newErrCount)
          }
        }
      }
    })
  }