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package moe.nea.firmament.util
import kotlin.time.Duration
import kotlin.time.Duration.Companion.milliseconds
class TimeMark private constructor(private val timeMark: Long) : Comparable<TimeMark> {
fun passedTime() =
if (timeMark == 0L) Duration.INFINITE
else (System.currentTimeMillis() - timeMark).milliseconds
fun passedAt(fakeNow: TimeMark) =
if (timeMark == 0L) Duration.INFINITE
else (fakeNow.timeMark - timeMark).milliseconds
operator fun minus(other: TimeMark): Duration {
if (other.timeMark == timeMark)
return 0.milliseconds
if (other.timeMark == 0L)
return Duration.INFINITE
if (timeMark == 0L)
return -Duration.INFINITE
return (timeMark - other.timeMark).milliseconds
}
companion object {
fun now() = TimeMark(System.currentTimeMillis())
fun farPast() = TimeMark(0L)
fun ago(timeDelta: Duration): TimeMark {
if (timeDelta.isFinite()) {
return TimeMark(System.currentTimeMillis() - timeDelta.inWholeMilliseconds)
}
require(timeDelta.isPositive())
return farPast()
}
}
override fun hashCode(): Int {
return timeMark.hashCode()
}
override fun equals(other: Any?): Boolean {
return other is TimeMark && other.timeMark == timeMark
}
override fun toString(): String {
return "https://time.is/$timeMark"
}
override fun compareTo(other: TimeMark): Int {
return this.timeMark.compareTo(other.timeMark)
}
}
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