52 lines
1.9 KiB
Kotlin
52 lines
1.9 KiB
Kotlin
package dev.inmo.krontab.collection
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import com.soywiz.klock.DateTime
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import dev.inmo.krontab.*
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import dev.inmo.krontab.internal.*
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import dev.inmo.krontab.internal.CronDateTimeScheduler
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import dev.inmo.krontab.internal.toNearDateTime
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/**
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* This scheduler will be useful in case you want to unite several different [KronScheduler]s
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*/
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data class CollectionKronScheduler internal constructor(
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internal val schedulers: MutableList<KronScheduler>
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) : KronScheduler {
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internal constructor() : this(mutableListOf())
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/**
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* Add [kronScheduler] into its [schedulers] list
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*
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* * When [kronScheduler] is [CronDateTimeScheduler] it will merge all [CronDateTimeScheduler]s from [schedulers] list
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* and this [kronScheduler] using [mergeCronDateTimeSchedulers] function
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* * When [kronScheduler] is [CollectionKronScheduler] it this instance will include all [kronScheduler]
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* [schedulers]
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* * Otherwise [kronScheduler] will be added to [schedulers] list
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*/
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fun include(kronScheduler: KronScheduler) {
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when (kronScheduler) {
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is CronDateTimeScheduler -> {
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val resultCronDateTimes = mutableListOf(kronScheduler)
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schedulers.removeAll {
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if (it is CronDateTimeScheduler) {
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resultCronDateTimes.add(it)
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} else {
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false
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}
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}
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schedulers.add(
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mergeCronDateTimeSchedulers(resultCronDateTimes)
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)
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}
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is CollectionKronScheduler -> kronScheduler.schedulers.forEach {
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include(it)
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}
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else -> schedulers.add(kronScheduler)
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}
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}
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override suspend fun next(relatively: DateTime): DateTime {
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return schedulers.mapNotNull { it.next(relatively) }.minOrNull() ?: getAnyNext(relatively)
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}
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}
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