iosX64Main.common.LocalDate.objc.kt Maven / Gradle / Ivy

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package io.fluidsonic.time

import platform.Foundation.*


actual fun LocalDate.atStartOfDay(timeZone: TimeZone): Timestamp {
	val components = toPlatformComponents()
	components.hour = 0
	components.minute = 0
	components.second = 0
	components.nanosecond = 0
	components.timeZone = timeZone.platform

	return platform_gregorianCalendar.dateFromComponents(components)!!.toCommon()
}


// TODO Is this correct? We're changing both dates by one day here.
actual fun LocalDate.daysSince(startExclusive: LocalDate): Days =
	Days(platform_gregorianCalendar.components(
		unitFlags = NSDayCalendarUnit,
		fromDate = startExclusive.atStartOfDay(timeZone = TimeZone.utc).toPlatform(),
		toDate = atStartOfDay(timeZone = TimeZone.utc).toPlatform(),
		options = 0UL
	).day)


actual fun LocalDate.daysUntil(endExclusive: LocalDate): Days =
	endExclusive.daysSince(this)


actual operator fun LocalDate.plus(days: Days): LocalDate =
	platform_gregorianCalendar.dateByAddingUnit(
			NSDayCalendarUnit,
			value = days.toLong(),
			toDate = atStartOfDay(timeZone = TimeZone.utc).toPlatform(),
			options = 0UL
		)!!
		.toCommon()
		.toLocalDate(timeZone = TimeZone.utc)


actual operator fun LocalDate.plus(months: Months): LocalDate =
	platform_gregorianCalendar.dateByAddingUnit(
			NSMonthCalendarUnit,
			value = months.toLong(),
			toDate = atStartOfDay(timeZone = TimeZone.utc).toPlatform(),
			options = 0UL
		)!!
		.toCommon()
		.toLocalDate(timeZone = TimeZone.utc)


actual operator fun LocalDate.plus(years: Years): LocalDate =
	platform_gregorianCalendar.dateByAddingUnit(
			NSYearCalendarUnit,
			value = years.toLong(),
			toDate = atStartOfDay(timeZone = TimeZone.utc).toPlatform(),
			options = 0UL
		)!!
		.toCommon()
		.toLocalDate(timeZone = TimeZone.utc)


actual fun LocalDate.toDayOfWeek() =
	atStartOfDay(TimeZone.utc).toDayOfWeek(TimeZone.utc)


internal fun LocalDate.toPlatformComponents(): NSDateComponents {
	val components = NSDateComponents()
	components.year = year.toLong()
	components.month = month.toLong()
	components.day = day.toLong()
	return components
}