//
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// SwiftDate
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// Parse, validate, manipulate, and display dates, time and timezones in Swift
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//
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// Created by Daniele Margutti
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// - Web: https://www.danielemargutti.com
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// - Twitter: https://twitter.com/danielemargutti
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// - Mail: hello@danielemargutti.com
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//
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// Copyright © 2019 Daniele Margutti. Licensed under MIT License.
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//
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import Foundation
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public extension DateInRegion {
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// MARK: - Random Date Generator
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/// Generate a sequence of dates between a range.
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///
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/// - Parameters:
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/// - count: number of dates to generate.
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/// - initial: lower date bound.
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/// - final: upper date bound.
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/// - region: region of the dates.
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/// - Returns: array of dates
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static func randomDates(count: Int, between initial: DateInRegion, and final: DateInRegion,
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region: Region = SwiftDate.defaultRegion) -> [DateInRegion] {
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var list: [DateInRegion] = []
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for _ in 0..<count {
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list.append(DateInRegion.randomDate(between: initial, and: final, region: region))
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}
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return list
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}
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/// Return a date between now and a specified amount days ealier.
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///
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/// - Parameters:
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/// - days: days range
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/// - region: destination region, `nil` to use the default region
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/// - Returns: random date
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static func randomDate(withinDaysBeforeToday days: Int,
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region: Region = SwiftDate.defaultRegion) -> DateInRegion {
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let today = DateInRegion(region: region)
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let earliest = DateInRegion(today.date.addingTimeInterval(TimeInterval(-days * 24 * 60 * 60)), region: region)
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return DateInRegion.randomDate(between: earliest, and: today)
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}
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/// Generate a random date in given region.
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///
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/// - Parameter region: destination region, `nil` to use the default region
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/// - Returns: random date
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static func randomDate(region: Region = SwiftDate.defaultRegion) -> DateInRegion {
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let randomTime = TimeInterval(UInt32.random(in: UInt32.min..<UInt32.max))
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let absoluteDate = Date(timeIntervalSince1970: randomTime)
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return DateInRegion(absoluteDate, region: region)
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}
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/// Generate a random date between two intervals.
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///
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/// - Parameters:
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/// - initial: lower bound date
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/// - final: upper bound date
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/// - region: destination region, `nil` to use the default region
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/// - Returns: random Date
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static func randomDate(between initial: DateInRegion, and final: DateInRegion,
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region: Region = SwiftDate.defaultRegion) -> DateInRegion {
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let interval = final.timeIntervalSince(initial)
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let randomInterval = TimeInterval(UInt32.random(in: UInt32.min..<UInt32(interval)))
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return initial.addingTimeInterval(randomInterval)
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}
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/// Return the oldest date in given list (timezone is ignored, comparison uses absolute date).
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///
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/// - Parameter list: list of dates
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/// - Returns: a tuple with the index of the oldest date and its instance.
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static func oldestIn(list: [DateInRegion]) -> DateInRegion? {
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guard list.count > 0 else { return nil }
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guard list.count > 1 else { return list.first! }
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return list.min(by: {
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return $0 < $1
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})
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}
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/// Sort date by oldest, with the oldest date on top.
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///
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/// - Parameter list: list to sort
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/// - Returns: sorted array
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static func sortedByOldest(list: [DateInRegion]) -> [DateInRegion] {
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return list.sorted(by: { $0.date.compare($1.date) == .orderedAscending })
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}
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/// Sort date by newest, with the newest date on top.
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///
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/// - Parameter list: list to sort
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/// - Returns: sorted array
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static func sortedByNewest(list: [DateInRegion]) -> [DateInRegion] {
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return list.sorted(by: { $0.date.compare($1.date) == .orderedDescending })
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}
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/// Return the newest date in given list (timezone is ignored, comparison uses absolute date).
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///
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/// - Parameter list: list of dates
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/// - Returns: a tuple with the index of the newest date and its instance.
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static func newestIn(list: [DateInRegion]) -> DateInRegion? {
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guard list.count > 0 else { return nil }
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guard list.count > 1 else { return list.first! }
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return list.max(by: {
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return $0 < $1
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})
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}
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/// Enumerate dates between two intervals by adding specified time components and return an array of dates.
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/// `startDate` interval will be the first item of the resulting array.
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/// The last item of the array is evaluated automatically and maybe not equal to `endDate`.
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///
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/// - Parameters:
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/// - start: starting date
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/// - endDate: ending date
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/// - increment: components to add
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/// - Returns: array of dates
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static func enumerateDates(from startDate: DateInRegion, to endDate: DateInRegion, increment: DateComponents) -> [DateInRegion] {
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return DateInRegion.enumerateDates(from: startDate, to: endDate, increment: { _ in
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return increment
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})
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}
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/// Enumerate dates between two intervals by adding specified time components defined in a closure and return an array of dates.
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/// `startDate` interval will be the first item of the resulting array.
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/// The last item of the array is evaluated automatically and maybe not equal to `endDate`.
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///
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/// - Parameters:
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/// - start: starting date
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/// - endDate: ending date
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/// - increment: increment function. It get the last generated date and require a valida `DateComponents` instance which define the increment
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/// - Returns: array of dates
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static func enumerateDates(from startDate: DateInRegion, to endDate: DateInRegion, increment: ((DateInRegion) -> (DateComponents))) -> [DateInRegion] {
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guard startDate.calendar == endDate.calendar else {
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debugPrint("Cannot enumerate dates between two different region's calendars. Return empty array.")
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return []
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}
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var dates: [DateInRegion] = []
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var currentDate = startDate
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while currentDate <= endDate {
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dates.append(currentDate)
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currentDate = (currentDate + increment(currentDate))
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}
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return dates
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}
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/// Returns a new DateInRegion that is initialized at the start of a specified unit of time.
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///
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/// - Parameter unit: time unit value.
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/// - Returns: instance at the beginning of the time unit; `self` if fails.
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func dateAtStartOf(_ unit: Calendar.Component) -> DateInRegion {
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#if os(Linux)
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guard let result = (region.calendar as NSCalendar).range(of: unit.nsCalendarUnit, for: date) else {
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return self
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}
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return DateInRegion(result.start, region: region)
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#else
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var start: NSDate?
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var interval: TimeInterval = 0
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guard (region.calendar as NSCalendar).range(of: unit.nsCalendarUnit, start: &start, interval: &interval, for: date),
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let startDate = start else {
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return self
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}
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return DateInRegion(startDate as Date, region: region)
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#endif
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}
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/// Return a new DateInRegion that is initialized at the start of the specified components
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/// executed in order.
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///
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/// - Parameter units: sequence of transformations as time unit components
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/// - Returns: new date at the beginning of the passed components, intermediate results if fails.
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func dateAtStartOf(_ units: [Calendar.Component]) -> DateInRegion {
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return units.reduce(self) { (currentDate, currentUnit) -> DateInRegion in
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return currentDate.dateAtStartOf(currentUnit)
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}
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}
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/// Returns a new Moment that is initialized at the end of a specified unit of time.
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///
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/// - parameter unit: time unit value.
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///
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/// - returns: A new Moment instance.
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func dateAtEndOf(_ unit: Calendar.Component) -> DateInRegion {
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// RangeOfUnit returns the start of the next unit; we will subtract one thousandth of a second
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#if os(Linux)
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guard let result = (region.calendar as NSCalendar).range(of: unit.nsCalendarUnit, for: date) else {
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return self
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}
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let startOfNextUnit = result.start.addingTimeInterval(result.duration)
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let endOfThisUnit = Date(timeInterval: -0.001, since: startOfNextUnit)
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return DateInRegion(endOfThisUnit, region: region)
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#else
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var start: NSDate?
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var interval: TimeInterval = 0
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guard (self.region.calendar as NSCalendar).range(of: unit.nsCalendarUnit, start: &start, interval: &interval, for: date),
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let startDate = start else {
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return self
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}
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let startOfNextUnit = startDate.addingTimeInterval(interval)
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let endOfThisUnit = Date(timeInterval: -0.001, since: startOfNextUnit as Date)
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return DateInRegion(endOfThisUnit, region: region)
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#endif
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}
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/// Return a new DateInRegion that is initialized at the end of the specified components
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/// executed in order.
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///
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/// - Parameter units: sequence of transformations as time unit components
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/// - Returns: new date at the end of the passed components, intermediate results if fails.
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func dateAtEndOf(_ units: [Calendar.Component]) -> DateInRegion {
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return units.reduce(self) { (currentDate, currentUnit) -> DateInRegion in
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return currentDate.dateAtEndOf(currentUnit)
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}
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}
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/// Create a new date by altering specified components of the receiver.
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/// Note: `calendar` and `timezone` are ignored.
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/// Note: some components may alter the date cyclically (like setting both `.year` and `.yearForWeekOfYear`) and
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/// may results in a wrong evaluated date.
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///
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/// - Parameter components: components to alter with their new values.
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/// - Returns: new altered `DateInRegion` instance
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func dateBySet(_ components: [Calendar.Component: Int?]) -> DateInRegion? {
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var dateComponents = DateComponents()
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dateComponents.year = (components[.year] ?? year)
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dateComponents.month = (components[.month] ?? month)
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dateComponents.day = (components[.day] ?? day)
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dateComponents.hour = (components[.hour] ?? hour)
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dateComponents.minute = (components[.minute] ?? minute)
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dateComponents.second = (components[.second] ?? second)
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dateComponents.nanosecond = (components[.nanosecond] ?? nanosecond)
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// Some components may interfer with others, so we'll set it them only if explicitly set.
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if let weekday = components[.weekday] {
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dateComponents.weekday = weekday
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}
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if let weekOfYear = components[.weekOfYear] {
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dateComponents.weekOfYear = weekOfYear
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}
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if let weekdayOrdinal = components[.weekdayOrdinal] {
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dateComponents.weekdayOrdinal = weekdayOrdinal
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}
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if let yearForWeekOfYear = components[.yearForWeekOfYear] {
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dateComponents.yearForWeekOfYear = yearForWeekOfYear
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}
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guard let newDate = calendar.date(from: dateComponents) else { return nil }
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return DateInRegion(newDate, region: region)
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}
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/// Create a new date by altering specified time components.
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///
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/// - Parameters:
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/// - hour: hour to set (`nil` to leave it unaltered)
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/// - min: min to set (`nil` to leave it unaltered)
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/// - secs: sec to set (`nil` to leave it unaltered)
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/// - ms: milliseconds to set (`nil` to leave it unaltered)
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/// - options: options for calculation
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/// - Returns: new altered `DateInRegion` instance
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func dateBySet(hour: Int?, min: Int?, secs: Int?, ms: Int? = nil, options: TimeCalculationOptions = TimeCalculationOptions()) -> DateInRegion? {
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guard let date = calendar.date(bySettingHour: (hour ?? self.hour),
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minute: (min ?? self.minute),
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second: (secs ?? self.second),
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of: self.date,
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matchingPolicy: options.matchingPolicy,
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repeatedTimePolicy: options.repeatedTimePolicy,
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direction: options.direction) else { return nil }
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guard let ms = ms else {
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return DateInRegion(date, region: region)
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}
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var timestamp = date.timeIntervalSince1970.rounded(.down)
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timestamp += Double(ms) / 1000.0
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return DateInRegion(Date(timeIntervalSince1970: timestamp), region: region)
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}
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/// Creates a new instance by truncating the components
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///
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/// - Parameter components: components to truncate.
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/// - Returns: new date with truncated components.
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func dateTruncated(at components: [Calendar.Component]) -> DateInRegion? {
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var dateComponents = self.dateComponents
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for component in components {
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switch component {
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case .month: dateComponents.month = 1
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case .day: dateComponents.day = 1
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case .hour: dateComponents.hour = 0
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case .minute: dateComponents.minute = 0
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case .second: dateComponents.second = 0
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case .nanosecond: dateComponents.nanosecond = 0
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default: continue
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}
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}
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guard let newDate = calendar.date(from: dateComponents) else { return nil }
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return DateInRegion(newDate, region: region)
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}
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/// Creates a new instance by truncating the components starting from given components down the granurality.
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///
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/// - Parameter component: The component to be truncated from.
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/// - Returns: new date with truncated components.
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func dateTruncated(from component: Calendar.Component) -> DateInRegion? {
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switch component {
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case .month: return dateTruncated(at: [.month, .day, .hour, .minute, .second, .nanosecond])
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case .day: return dateTruncated(at: [.day, .hour, .minute, .second, .nanosecond])
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case .hour: return dateTruncated(at: [.hour, .minute, .second, .nanosecond])
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case .minute: return dateTruncated(at: [.minute, .second, .nanosecond])
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case .second: return dateTruncated(at: [.second, .nanosecond])
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case .nanosecond: return dateTruncated(at: [.nanosecond])
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default: return self
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}
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}
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/// Round a given date time to the passed style (off|up|down).
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///
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/// - Parameter style: rounding mode.
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/// - Returns: rounded date
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func dateRoundedAt(_ style: RoundDateMode) -> DateInRegion {
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switch style {
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case .to5Mins: return dateRoundedAt(.toMins(5))
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case .to10Mins: return dateRoundedAt(.toMins(10))
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case .to30Mins: return dateRoundedAt(.toMins(30))
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case .toCeil5Mins: return dateRoundedAt(.toCeilMins(5))
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case .toCeil10Mins: return dateRoundedAt(.toCeilMins(10))
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case .toCeil30Mins: return dateRoundedAt(.toCeilMins(30))
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case .toFloor5Mins: return dateRoundedAt(.toFloorMins(5))
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case .toFloor10Mins: return dateRoundedAt(.toFloorMins(10))
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case .toFloor30Mins: return dateRoundedAt(.toFloorMins(30))
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case .toMins(let minuteInterval):
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let onesDigit: Int = (minute % 10)
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if onesDigit < 5 {
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return dateRoundedAt(.toFloorMins(minuteInterval))
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} else {
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return dateRoundedAt(.toCeilMins(minuteInterval))
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}
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case .toCeilMins(let minuteInterval):
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let remain: Int = (minute % minuteInterval)
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let value = (( Int(1.minutes.timeInterval) * (minuteInterval - remain)) - second)
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return dateByAdding(value, .second)
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case .toFloorMins(let minuteInterval):
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let remain: Int = (minute % minuteInterval)
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let value = -((Int(1.minutes.timeInterval) * remain) + second)
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return dateByAdding(value, .second)
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}
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}
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/// Offset a date by n calendar components.
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/// Note: This operation can be functionally chained.
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///
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/// - Parameters:
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/// - count: value of the offset (maybe negative).
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/// - component: component to offset.
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/// - Returns: new altered date.
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func dateByAdding(_ count: Int, _ component: Calendar.Component) -> DateInRegion {
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var newComponent = DateComponents(second: 0)
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switch component {
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case .era: newComponent = DateComponents(era: count)
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case .year: newComponent = DateComponents(year: count)
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case .month: newComponent = DateComponents(month: count)
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case .day: newComponent = DateComponents(day: count)
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case .hour: newComponent = DateComponents(hour: count)
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case .minute: newComponent = DateComponents(minute: count)
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case .second: newComponent = DateComponents(second: count)
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case .weekday: newComponent = DateComponents(weekday: count)
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case .weekdayOrdinal: newComponent = DateComponents(weekdayOrdinal: count)
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case .quarter: newComponent = DateComponents(quarter: count)
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case .weekOfMonth: newComponent = DateComponents(weekOfMonth: count)
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case .weekOfYear: newComponent = DateComponents(weekOfYear: count)
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case .yearForWeekOfYear: newComponent = DateComponents(yearForWeekOfYear: count)
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case .nanosecond: newComponent = DateComponents(nanosecond: count)
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default: break // .calendar and .timezone does nothing in this context
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}
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guard let newDate = region.calendar.date(byAdding: newComponent, to: date) else {
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return self // failed to add component, return unmodified date
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}
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return DateInRegion(newDate, region: region)
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}
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/// Return related date starting from the receiver attributes.
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///
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/// - Parameter type: related date to obtain.
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/// - Returns: instance of the related date; if fails the same unmodified date is returned
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func dateAt(_ type: DateRelatedType) -> DateInRegion {
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switch type {
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case .startOfDay:
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return calendar.startOfDay(for: date).in(region: region)
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case .endOfDay:
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return dateByAdding(1, .day).dateAt(.startOfDay).dateByAdding(-1, .second)
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case .startOfWeek:
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let components = calendar.dateComponents([.yearForWeekOfYear, .weekOfYear], from: date)
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return calendar.date(from: components)!.in(region: region)
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case .endOfWeek:
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return dateAt(.startOfWeek).dateByAdding(7, .day).dateByAdding(-1, .second)
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case .startOfMonth:
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return dateBySet([.day: 1, .hour: 1, .minute: 1, .second: 1, .nanosecond: 1])!
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case .endOfMonth:
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return dateByAdding((monthDays - day), .day).dateAtEndOf(.day)
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case .tomorrow:
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return dateByAdding(1, .day)
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case .tomorrowAtStart:
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return dateByAdding(1, .day).dateAtStartOf(.day)
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case .yesterday:
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return dateByAdding(-1, .day)
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case .yesterdayAtStart:
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return dateByAdding(-1, .day).dateAtStartOf(.day)
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case .nearestMinute(let nearest):
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let minutes = (minute + nearest / 2) / nearest * nearest
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return dateBySet([.minute: minutes])!
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case .nearestHour(let nearest):
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let hours = (hour + nearest / 2) / nearest * nearest
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return dateBySet([.hour: hours, .minute: 0])!
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case .nextWeekday(let weekday):
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var cal = Calendar(identifier: calendar.identifier)
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cal.firstWeekday = 2 // Sunday = 1, Saturday = 7
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var components = DateComponents()
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components.weekday = weekday.rawValue
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guard let next = cal.nextDate(after: date, matching: components, matchingPolicy: .nextTimePreservingSmallerComponents) else {
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return self
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}
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return DateInRegion(next, region: region)
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case .nextDSTDate:
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guard let nextDate = region.timeZone.nextDaylightSavingTimeTransition(after: date) else {
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return self
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}
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return DateInRegion(nextDate, region: region)
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case .prevMonth:
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return dateByAdding(-1, .month).dateAtStartOf(.month).dateAtStartOf(.day)
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case .nextMonth:
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return dateByAdding(1, .month).dateAtStartOf(.month).dateAtStartOf(.day)
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case .prevWeek:
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return dateByAdding(-1, .weekOfYear).dateAtStartOf(.weekOfYear).dateAtStartOf(.day)
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case .nextWeek:
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return dateByAdding(1, .weekOfYear).dateAtStartOf(.weekOfYear).dateAtStartOf(.day)
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case .nextYear:
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return dateByAdding(1, .year).dateAtStartOf(.year)
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case .prevYear:
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return dateByAdding(-1, .year).dateAtStartOf(.year)
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case .nextDSTTransition:
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guard let transitionDate = region.timeZone.nextDaylightSavingTimeTransition(after: date) else {
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return self
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}
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return DateInRegion(transitionDate, region: region)
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}
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}
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/// Create a new instance of the date in the same region with time shifted by given time interval.
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///
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/// - Parameter interval: time interval to shift; maybe negative.
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/// - Returns: new instance of the `DateInRegion`
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func addingTimeInterval(_ interval: TimeInterval) -> DateInRegion {
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return DateInRegion(date.addingTimeInterval(interval), region: region)
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}
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// MARK: - Conversion
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/// Convert a date to a new calendar/timezone/locale.
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/// Only non `nil` values are used, other values are inherithed by the receiver's region.
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///
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/// - Parameters:
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/// - calendar: non `nil` value to change the calendar
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/// - timezone: non `nil` value to change the timezone
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/// - locale: non `nil` value to change the locale
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/// - Returns: converted date
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func convertTo(calendar: CalendarConvertible? = nil, timezone: ZoneConvertible? = nil, locale: LocaleConvertible? = nil) -> DateInRegion {
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let newRegion = Region(calendar: (calendar ?? region.calendar),
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zone: (timezone ?? region.timeZone),
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locale: (locale ?? region.locale))
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return convertTo(region: newRegion)
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}
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/// Return the dates for a specific weekday inside given month of specified year.
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/// Ie. get me all the saturdays of Feb 2018.
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/// NOTE: Values are returned in order.
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///
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/// - Parameters:
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/// - weekday: weekday target.
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/// - month: month target.
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/// - year: year target.
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/// - region: region target, omit to use `SwiftDate.defaultRegion`
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/// - Returns: Ordered list of the dates for given weekday into given month.
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static func datesForWeekday(_ weekday: WeekDay, inMonth month: Int, ofYear year: Int,
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region: Region = SwiftDate.defaultRegion) -> [DateInRegion] {
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let fromDate = DateInRegion(year: year, month: month, day: 1, hour: 0, minute: 0, second: 0, nanosecond: 0, region: region)
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let toDate = fromDate.dateAt(.endOfMonth)
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return DateInRegion.datesForWeekday(weekday, from: fromDate, to: toDate, region: region)
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}
|
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/// Return the dates for a specific weekday inside a specified date range.
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/// NOTE: Values are returned in order.
|
///
|
/// - Parameters:
|
/// - weekday: weekday target.
|
/// - startDate: from date of the range.
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/// - endDate: to date of the range.
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/// - region: region target, omit to use `SwiftDate.defaultRegion`
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/// - Returns: Ordered list of the dates for given weekday in passed range.
|
static func datesForWeekday(_ weekday: WeekDay, from startDate: DateInRegion, to endDate: DateInRegion,
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region: Region = SwiftDate.defaultRegion) -> [DateInRegion] {
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let calendarObj = region.calendar
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let startDateWeekDay = Int(calendarObj.component(.weekday, from: startDate.date))
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let desiredDay = weekday.rawValue
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let offset = (desiredDay - startDateWeekDay + 7) % 7
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let firstOccurrence = calendarObj.startOfDay(for: calendarObj.date(byAdding: DateComponents(day: offset), to: startDate.date)!)
|
guard firstOccurrence.timeIntervalSince1970 < endDate.timeIntervalSince1970 else {
|
return []
|
}
|
var dateOccurrences = [DateInRegion(firstOccurrence, region: region)]
|
while true {
|
let nextDate = DateInRegion(calendarObj.date(byAdding: DateComponents(day: 7), to: dateOccurrences.last!.date)!,
|
region: region)
|
guard nextDate < endDate else {
|
break
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}
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dateOccurrences.append(nextDate)
|
}
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return dateOccurrences
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}
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}
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public extension DateInRegion {
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/// Returns the date at the given week number and week day preserving smaller components (hour, minute, seconds)
|
///
|
/// For example: to get the third friday of next month
|
/// let today = DateInRegion()
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/// let result = today.dateAt(weekdayOrdinal: 3, weekday: .friday, monthNumber: today.month + 1)
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///
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/// - Parameters:
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/// - weekdayOrdinal: the week number (by set position in a recurrence rule)
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/// - weekday: WeekDay
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/// - monthNumber: a number from 1 to 12 representing the month, optional parameter
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/// - yearNumber: a number representing the year, optional parameter
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/// - Returns: new date created with the given parameters
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func dateAt(weekdayOrdinal: Int, weekday: WeekDay, monthNumber: Int? = nil,
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yearNumber: Int? = nil) -> DateInRegion {
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let monthNum = monthNumber ?? month
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let yearNum = yearNumber ?? year
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var requiredWeekNum = weekdayOrdinal
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var result = DateInRegion(year: yearNum, month: monthNum, day: 1, hour: hour,
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minute: minute, second: second, nanosecond: nanosecond, region: region)
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if result.weekday == weekday.rawValue {
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requiredWeekNum -= 1
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}
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while requiredWeekNum > 0 {
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result = result.nextWeekday(weekday)
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requiredWeekNum -= 1
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}
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return result
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}
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/// Returns the date on the given day of month preserving smaller components
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func dateAt(dayOfMonth: Int, monthNumber: Int? = nil,
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yearNumber: Int? = nil) -> DateInRegion {
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let monthNum = monthNumber ?? month
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let yearNum = yearNumber ?? year
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let result = DateInRegion(year: yearNum, month: monthNum, day: dayOfMonth,
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hour: hour, minute: minute, second: second,
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nanosecond: nanosecond, region: region)
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return result
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}
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/// Returns the date after given number of weeks on the given day of week
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func dateAfter(weeks count: Int, on weekday: WeekDay) -> DateInRegion {
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var result = self.dateByAdding(count, .weekOfMonth)
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if result.weekday == weekday.rawValue {
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return result
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} else if result.weekday > weekday.rawValue {
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result = result.dateByAdding(-1, .weekOfMonth)
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}
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return result.nextWeekday(weekday)
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}
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/// Returns the next weekday preserving smaller components
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///
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/// - Parameters:
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/// - weekday: weekday to get.
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/// - region: region target, omit to use `SwiftDate.defaultRegion`
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/// - Returns: `DateInRegion`
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func nextWeekday(_ weekday: WeekDay) -> DateInRegion {
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var components = DateComponents()
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components.weekday = weekday.rawValue
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components.hour = hour
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components.second = second
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components.minute = minute
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guard let next = region.calendar.nextDate(after: date, matching: components,
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matchingPolicy: .nextTimePreservingSmallerComponents) else {
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return self
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}
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return DateInRegion(next, region: region)
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}
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/// Returns next date with the given weekday and the given week number
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func next(_ weekday: WeekDay, withWeekOfMonth weekNumber: Int,
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andMonthNumber monthNumber: Int? = nil) -> DateInRegion {
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var result = self.dateAt(weekdayOrdinal: weekNumber, weekday: weekday, monthNumber: monthNumber)
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if result <= self {
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if let monthNum = monthNumber {
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result = self.dateAt(weekdayOrdinal: weekNumber, weekday: weekday,
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monthNumber: monthNum, yearNumber: self.year + 1)
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} else {
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result = self.dateAt(weekdayOrdinal: weekNumber, weekday: weekday, monthNumber: self.month + 1)
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}
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}
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return result
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}
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/// Returns the next day of month preserving smaller components (hour, minute, seconds)
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func next(dayOfMonth: Int, monthOfYear: Int? = nil) -> DateInRegion {
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var components = DateComponents()
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components.day = dayOfMonth
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components.month = monthOfYear
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components.hour = hour
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components.second = second
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components.minute = minute
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guard let next = region.calendar.nextDate(after: date, matching: components,
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matchingPolicy: .nextTimePreservingSmallerComponents) else {
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return self
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}
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return DateInRegion(next, region: region)
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}
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}
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