Monadic-ScalaFX-Demo/src/main/scala/nova/monadic_sfx/util/controls/ActionObservable.scala

package nova.monadic_sfx.util.controls

import monix.execution.Cancelable
import monix.execution.Scheduler
import monix.execution.cancelables.CompositeCancelable
import monix.reactive.Observable
import monix.reactive.Observer
import monix.{eval => me}
import nova.monadic_sfx.util.reactive.store.Sink2
import nova.monadic_sfx.implicits._

object ActionObservableDsl {
  implicit final class ActionObservableExecutor[T](
      private val delegate: Observable[T]
  ) {
    // def -->[G](sub: G)(implicit s: Scheduler, G: Sink[G, T]) =
    //   // delegate
    //   //   .doOnNext(el => me.Task.deferFuture(sub.onNext(el)) >> me.Task.unit)
    //   //   .subscribe()
    //   delegate
    //     .doOnNext(el => G.offer(sub, el))
    //     .subscribe()

    def -->(
        sink: Sink2[T]
    )(implicit s: Scheduler, c: CompositeCancelable) =
      // delegate
      //   .doOnNext(el => me.Task.deferFuture(sub.onNext(el)) >> me.Task.unit)
      //   .subscribe()
      c += delegate
        .doOnNext(el => sink.offer(el).toTask)
        .subscribe()

  }
}
// final class ActionObservableBuilder[A](
//     private val observableAction: Observable[A]
// ) extends AnyVal {
//   def useLazyEval[T](v: me.Task[T]) =
//     new ActionObservableExecutor[T](observableAction.mapEval(_ => v))

//   def useEval[T](cb: A => me.Task[T]) =
//     new ActionObservableExecutor[T](
//       observableAction.mapEval(cb)
//     )

//   def useIterableEval[T](cb: A => collection.immutable.Iterable[T]) =
//     new ActionObservableExecutor[T](
//       observableAction.flatMap(a =>
//         Observable.suspend(Observable.fromIterable(cb(a)))
//       )
//     )

//   def use = new ActionObservableExecutor(observableAction)

//   def doOnNext(cb: A => me.Task[Unit]): ActionObservableBuilder[A] =
//     new ActionObservableBuilder(observableAction.doOnNext(cb))

//   def mapEval[B](cb: A => me.Task[B]) =
//     new ActionObservableBuilder(observableAction.mapEval(cb))

//   def underlying = observableAction

//   // Caution: Experimental stuff below..

//   def useEval2[B, C](f: A => me.Task[B], g: A => me.Task[C]) =
//     new ActionObservableExecutor[(B, C)](
//       observableAction.publishSelector(conn =>
//         conn
//           .mapEval(f)
//           .switchMap(b =>
//             conn.mapEval(a =>
//               for {
//                 c <- g(a)
//               } yield (b, c)
//             )
//           )
//       )
//     )

//   // def bifurcate[B, C](
//   //     f: ActionObservableBuilder[A] => B,
//   //     g: ActionObservableBuilder[A] => C
//   // )(implicit s: Scheduler) =
//   //   observableAction
//   //     .publishSelector(conn =>
//   //       Observable(
//   //         Observable.unit.doOnNext(_ =>
//   //           me.Task(f(new ActionObservableBuilder[A](conn))) >> me.Task.unit
//   //         ),
//   //         Observable.unit.doOnNext(_ =>
//   //           me.Task(g(new ActionObservableBuilder[A](conn))) >> me.Task.unit
//   //         )
//   //       ).merge
//   //     )
//   //     .subscribe()

//   def split(
//       lst: (ActionObservableBuilder[A] => Cancelable)*
//   )(implicit s: Scheduler): Cancelable = {
//     val cc = CompositeCancelable()
//     cc += observableAction
//       .publishSelector(conn =>
//         Observable(
//           lst.map(f =>
//             Observable.unit.doOnNext(_ =>
//               me.Task(
//                 cc += f(new ActionObservableBuilder[A](conn))
//               ) >> me.Task.unit
//             )
//           ): _*
//         ).merge
//       )
//       .subscribe()
//   }

// }