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package org.saynotobugs.confidence.rxjava3.function;

import io.reactivex.rxjava3.core.Flowable;
import io.reactivex.rxjava3.core.Scheduler;
import org.dmfs.jems2.BiFunction;
import org.dmfs.jems2.Function;
import org.dmfs.jems2.function.DelegatingFunction;
import org.dmfs.jems2.iterable.Seq;
import org.dmfs.srcless.annotations.staticfactory.StaticFactories;

/**
 * A {@link Function} that takes a {@link Scheduler} and returns a {@link Flowable} that emits elements at certain
 * times.
 */
@StaticFactories(value = "RxJava3", packageName = "org.saynotobugs.confidence.rxjava3")
public final class Scheduled extends DelegatingFunction>
{

    @SafeVarargs
    public Scheduled(BiFunction, Flowable>... emissions)
    {
        this(new Seq<>(emissions));
    }

    public Scheduled(Iterable, Flowable>> emissions)
    {
        super(scheduler ->
            Flowable.fromIterable(emissions)
                .reduce(Flowable.empty(),
                    (flowable, emissionFunction) -> emissionFunction.value(scheduler, flowable))
                .flatMapPublisher(x -> x));
    }

}