commonMain.jetbrains.datalore.base.datetime.Duration.kt Maven / Gradle / Ivy

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/*
 * Copyright (c) 2019. JetBrains s.r.o.
 * Use of this source code is governed by the MIT license that can be found in the LICENSE file.
 */

package jetbrains.datalore.base.datetime

class Duration(val duration: Long) : Comparable {

    val isPositive: Boolean
        get() = duration > 0

    fun mul(times: Long): Duration {
        return Duration(duration * times)
    }

    fun add(duration: Duration): Duration {
        return Duration(this.duration + duration.duration)
    }

    fun sub(duration: Duration): Duration {
        return Duration(this.duration - duration.duration)
    }

    operator fun div(duration: Duration): Double {
        return this.duration / duration.duration.toDouble()
    }

    override fun compareTo(other: Duration): Int {
        val delta = duration - other.duration
        return if (delta > 0) {
            1
        } else if (delta == 0L) {
            0
        } else {
            -1
        }
    }

    override fun hashCode(): Int {
        return duration.toInt()
    }

    override fun equals(other: Any?): Boolean {
        return if (other !is Duration) false else duration == other.duration

    }

    override fun toString(): String {
        return "Duration : " + duration + "ms"
    }

    companion object {
        val MS = Duration(1)
        val SECOND = MS.mul(1000)
        val MINUTE = SECOND.mul(60)
        val HOUR = MINUTE.mul(60)
        val DAY = HOUR.mul(24)
        val WEEK = DAY.mul(7)
    }
}