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There is a newer version: 1.8.2

package ru.casperix.signals.collection

import ru.casperix.signals.concrete.EitherFuture
import ru.casperix.signals.concrete.EitherSignal

class EitherCollection {
	class Result(val promise: Any, val result:Any?)

	private var block = true
	private var amount = 0
	private val common = EitherSignal, List>()
	private val acceptList = mutableListOf()
	private val rejectList = mutableListOf()

	fun  add(promise: EitherFuture) {
		amount++
		promise.then({ onAccept(promise, it) }, { onReject(promise, it) })
	}

	fun future(): EitherFuture, List> {
		block = false
		check()
		return common
	}

	private fun onAccept(promise: Any, value: Any?) {
		acceptList.add(Result(promise, value))
		check()
	}

	private fun onReject(promise:Any, value: Any?) {
		rejectList.add(Result(promise, value))
		check()
	}

	private fun check() {
		if (!block && acceptList.size + rejectList.size == amount) {
			complete()
		}
	}

	private fun complete() {
		if (rejectList.isNotEmpty()) {
			common.rejectDispatcher(rejectList)
		} else {
			common.acceptDispatcher(acceptList)
		}
	}
}