package nova.monadic_sfx.util.reactive.store

import monix.eval.Task
import monix.catnap.ConcurrentQueue
import monix.reactive.Observer

trait Sink[A, -B] {
  def offer(inst: A, b: B): Task[Unit]
}

object Sink {
  implicit def sinkForCq[B] =
    new Sink[ConcurrentQueue[Task, B], B] {

      override def offer(queue: ConcurrentQueue[Task, B], b: B): Task[Unit] =
        queue.offer(b)

    }

  implicit def sinkForObserver[B] =
    new Sink[Observer[B], B] {

      override def offer(inst: Observer[B], b: B): Task[Unit] =
        Task.deferFuture(inst.onNext(b)).void

    }

  implicit def sinkForStore[B, C] =
    new Sink[Store[B, C], B] {

      override def offer(inst: Store[B, C], b: B): Task[Unit] =
        Task.deferFuture(inst.onNext(b)).void

    }

//   implicitly[Sink[Store[Int, Int], Int]]

}

trait Sink2[-B] {
  def offer(b: B): monix.bio.Task[Unit]
}

object Sink2 {
  def concurrentQueue[B](queue: ConcurrentQueue[monix.bio.Task, B]): Sink2[B] =
    new Sink2[B] {
      def offer(b: B): monix.bio.Task[Unit] = queue.offer(b)
    }
}