DiffRecalc.scala

object v2testing extends App {
  implicit val ec: scala.concurrent.ExecutionContext = scala.concurrent.ExecutionContext.global

  private val ergoSettings: ErgoSettings = ErgoSettings.read(Args(Some("/home/kushti/ergo/mainnet/mainnet.conf"), Some(NetworkType.MainNet)))

  val ntp = new NetworkTimeProvider(ergoSettings.scorexSettings.ntp)

  val ldc = new LinearDifficultyControl(ergoSettings.chainSettings)

  val eh = ErgoHistory.readOrGenerate(ergoSettings, ntp)

  val heights = ldc.previousHeadersRequiredForRecalculation(417792 + 1024 +1)

  println(heights)

  val headerOpts = heights.map(eh.bestHeaderIdAtHeight).map(idOpt => idOpt.flatMap(id => eh.typedModifierById[Header](id)))

  println(headerOpts.map(_.map(_.id)))

  val epochEnd = System.currentTimeMillis() + 1000 * 60 * 60 * 24 * 4

  import java.text.DateFormat
  import java.text.SimpleDateFormat

  val dateFormat = new SimpleDateFormat("dd MMM yyyy HH:mm:ss:SSS Z")
  val date = new Date(epochEnd)
  System.out.println(dateFormat.format(date))

  val headers =  headerOpts.map{_ match {
    case None => headerOpts.head.get.copy(height = 418816, nBits = 107976917L, timestamp = epochEnd)
    case Some(h) if h.height == 418816 => headerOpts.head.get.copy(height = 418816, nBits = 107976917L, timestamp = epochEnd)
    case Some(h) => h
  }}

  println(ldc.calculate(headers))


}