You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
2.8 KiB
108 lines
2.8 KiB
package nova.monadic_sfx.util.reactive.store
|
|
|
|
import java.time.LocalDateTime
|
|
|
|
import io.circe.Encoder
|
|
import io.odin.Logger
|
|
import monix.bio.Task
|
|
import monix.eval.Coeval
|
|
import monix.reactive.Observable
|
|
import monix.reactive.OverflowStrategy
|
|
import monix.reactive.subjects.ConcurrentSubject
|
|
|
|
object Store {
|
|
def createL[A, M](
|
|
initialAction: A,
|
|
initialState: M,
|
|
reducer: Reducer[A, M],
|
|
middlewares: Seq[Middleware[A, M]] = Seq.empty,
|
|
overflowStrategy: OverflowStrategy.Synchronous[A] =
|
|
OverflowStrategy.DropOld(50)
|
|
): Task[Store[A, M]] =
|
|
Task.deferAction { implicit s =>
|
|
Task {
|
|
val subject = ConcurrentSubject.publish[A](overflowStrategy)
|
|
|
|
val fold: ((A, M), A) => Coeval[(A, M)] = {
|
|
case ((_, state), action) =>
|
|
Coeval {
|
|
val (newState, effects) = reducer(state, action)
|
|
|
|
effects.subscribe(subject.onNext _)
|
|
|
|
action -> newState
|
|
}
|
|
}
|
|
|
|
val obs = Observable.suspend(
|
|
subject
|
|
.scanEval0F[Coeval, (A, M)](
|
|
Coeval.pure(initialAction -> initialState)
|
|
)(fold)
|
|
.behavior(initialAction -> initialState)
|
|
.refCount
|
|
)
|
|
|
|
val res = middlewares.foldLeft(obs) {
|
|
case (obs, middleware) => middleware(obs)
|
|
}
|
|
|
|
MonixProSubject.from(
|
|
subject,
|
|
res
|
|
)
|
|
}
|
|
}
|
|
|
|
def createJsonL[A: Encoder, M](
|
|
initialAction: A,
|
|
initialState: M,
|
|
reducer: Reducer[A, M],
|
|
storeName: String,
|
|
logger: Logger[Task],
|
|
middlewares: Seq[Middleware[A, M]] = Seq.empty,
|
|
overflowStrategy: OverflowStrategy.Synchronous[A] =
|
|
OverflowStrategy.DropOld(50)
|
|
): Task[Store[A, M]] =
|
|
Task.deferAction { implicit s =>
|
|
Task {
|
|
val subject = ConcurrentSubject.publish[A](overflowStrategy)
|
|
|
|
val fold: ((A, M), A) => Task[(A, M)] = {
|
|
case ((_, state), action) =>
|
|
Task {
|
|
val (newState, effects) = reducer(state, action)
|
|
|
|
effects.subscribe(subject.onNext _)
|
|
|
|
action -> newState
|
|
}
|
|
}
|
|
|
|
val obs = subject
|
|
.doOnNextF(action =>
|
|
Task(LocalDateTime.now()).flatMap(curTime =>
|
|
logger.debug(
|
|
StoreInfo(storeName, action, curTime)
|
|
)
|
|
)
|
|
)
|
|
// .doOnNextF(action => Coeval(println(action)))
|
|
.scanEvalF[Task, (A, M)](Task.pure(initialAction -> initialState))(
|
|
fold
|
|
)
|
|
.behavior(initialAction -> initialState)
|
|
.refCount
|
|
|
|
// val res = middlewares.foldLeft(obs) {
|
|
// case (obs, middleware) => middleware(obs)
|
|
// }
|
|
|
|
MonixProSubject.from(
|
|
subject,
|
|
obs
|
|
)
|
|
}
|
|
}
|
|
|
|
}
|