54 lines
2.0 KiB
Kotlin
54 lines
2.0 KiB
Kotlin
package com.github.insanusmokrassar.krontab
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import com.soywiz.klock.DateTime
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import kotlinx.coroutines.delay
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data class CronDateTimeScheduler internal constructor(
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internal val cronDateTimes: List<CronDateTime>
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)
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fun CronDateTimeScheduler.next(relatively: DateTime = DateTime.now()): DateTime {
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return cronDateTimes.map { it.toNearDateTime(relatively) }.min() ?: anyCronDateTime.toNearDateTime(relatively)
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}
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suspend fun CronDateTimeScheduler.doInLoop(block: suspend () -> Boolean) {
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do {
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delay(next().unixMillisLong - DateTime.now().unixMillisLong)
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} while (block())
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}
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fun createCronDateTimeScheduler(incoming: String): CronDateTimeScheduler {
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val (secondsSource, minutesSource, hoursSource, dayOfMonthSource, monthSource) = incoming.split(" ")
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val secondsParsed = parseSeconds(secondsSource)
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val minutesParsed = parseMinutes(minutesSource)
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val hoursParsed = parseHours(hoursSource)
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val dayOfMonthParsed = parseDaysOfMonth(dayOfMonthSource)
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val monthParsed = parseMonths(monthSource)
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val resultCronDateTimes = mutableListOf(CronDateTime())
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secondsParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
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previousCronDateTime.copy(seconds = currentTime)
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}
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minutesParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
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previousCronDateTime.copy(minutes = currentTime)
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}
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hoursParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
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previousCronDateTime.copy(hours = currentTime)
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}
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dayOfMonthParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
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previousCronDateTime.copy(dayOfMonth = currentTime)
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}
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monthParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
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previousCronDateTime.copy(month = currentTime)
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}
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return CronDateTimeScheduler(resultCronDateTimes.toList())
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}
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