137 lines
4.8 KiB
Kotlin
137 lines
4.8 KiB
Kotlin
package dev.inmo.krontab.internal
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import com.soywiz.klock.DateTime
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import com.soywiz.klock.TimezoneOffset
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import dev.inmo.krontab.KronScheduler
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/**
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* @param daysOfWeek 0-6
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* @param years any int
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* @param months 0-11
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* @param daysOfMonth 0-30
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* @param hours 0-23
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* @param minutes 0-59
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* @param seconds 0-59
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*/
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internal data class CronDateTime(
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val daysOfWeek: Array<Byte>? = null,
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val years: Array<Int>? = null,
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val months: Array<Byte>? = null,
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val daysOfMonth: Array<Byte>? = null,
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val hours: Array<Byte>? = null,
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val minutes: Array<Byte>? = null,
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val seconds: Array<Byte>? = null,
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val milliseconds: Array<Short>? = millisecondsArrayDefault
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) {
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init {
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check(daysOfWeek ?.all { it in dayOfWeekRange } ?: true)
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check(years?.all { it in yearRange } ?: true)
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check(months?.all { it in monthRange } ?: true)
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check(daysOfMonth ?.all { it in dayOfMonthRange } ?: true)
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check(hours?.all { it in hoursRange } ?: true)
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check(minutes?.all { it in minutesRange } ?: true)
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check(seconds?.all { it in secondsRange } ?: true)
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check(milliseconds?.all { it in millisecondsRange } ?: true)
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}
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internal val calculators = listOf(
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years ?.let { NearDateTimeCalculatorYears(it) },
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daysOfWeek ?.let { NearDateTimeCalculatorWeekDays(it) },
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milliseconds ?.let { NearDateTimeCalculatorMillis(it) },
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seconds ?.let { NearDateTimeCalculatorSeconds(it) },
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minutes ?.let { NearDateTimeCalculatorMinutes(it) },
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hours ?.let { NearDateTimeCalculatorHours(it) },
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daysOfMonth ?.let { NearDateTimeCalculatorDays(it) },
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months ?.let { NearDateTimeCalculatorMonths(it) },
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)
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internal fun toNearDateTime(relativelyTo: DateTime = DateTime.now()): DateTime? {
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var current = relativelyTo
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whileLoop@while (true) {
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for (calculator in calculators) {
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val (calculated, requireRecalculation) = (calculator ?: continue).calculateNearTime(current) ?: return null
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current = calculated
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if (requireRecalculation) {
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continue@whileLoop
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}
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}
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return current
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}
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}
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}
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internal fun createCronDateTime(
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seconds: Array<Byte>? = null,
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minutes: Array<Byte>? = null,
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hours: Array<Byte>? = null,
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dayOfMonth: Array<Byte>? = null,
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month: Array<Byte>? = null,
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years: Array<Int>? = null,
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weekDays: Array<Byte>? = null,
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milliseconds: Array<Short>? = millisecondsArrayDefault
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): CronDateTime {
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return CronDateTime(weekDays, years, month, dayOfMonth, hours, minutes, seconds, milliseconds)
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}
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/**
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* @return [KronScheduler] (in fact [CronDateTimeScheduler]) based on incoming data
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*/
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internal fun createKronScheduler(
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seconds: Array<Byte>? = null,
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minutes: Array<Byte>? = null,
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hours: Array<Byte>? = null,
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dayOfMonth: Array<Byte>? = null,
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month: Array<Byte>? = null,
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years: Array<Int>? = null,
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weekDays: Array<Byte>? = null,
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milliseconds: Array<Short>? = millisecondsArrayDefault
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): KronScheduler = CronDateTimeScheduler(
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createCronDateTime(
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seconds,
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minutes,
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hours,
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dayOfMonth,
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month,
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years,
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weekDays,
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milliseconds
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)
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)
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/**
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* @return [KronScheduler] (in fact [CronDateTimeScheduler]) based on incoming data
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*/
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internal fun createKronSchedulerWithOffset(
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seconds: Array<Byte>? = null,
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minutes: Array<Byte>? = null,
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hours: Array<Byte>? = null,
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dayOfMonth: Array<Byte>? = null,
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month: Array<Byte>? = null,
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years: Array<Int>? = null,
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weekDays: Array<Byte>? = null,
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offset: TimezoneOffset,
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milliseconds: Array<Short>? = millisecondsArrayDefault
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): KronScheduler = CronDateTimeSchedulerTz(
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createCronDateTime(
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seconds,
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minutes,
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hours,
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dayOfMonth,
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month,
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years,
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weekDays,
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milliseconds
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),
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offset
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)
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internal fun List<CronDateTime>.merge() = CronDateTime(
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flatMap { it.daysOfWeek ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.years ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.months ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.daysOfMonth ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.hours ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.minutes ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.seconds ?.toList() ?: emptyList() }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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flatMap { it.milliseconds ?.toList() ?: listOf(0) }.distinct().toTypedArray().takeIf { it.isNotEmpty() },
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)
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