65 lines
2.2 KiB
Swift
65 lines
2.2 KiB
Swift
//
|
|
// Date+Dispatch.swift
|
|
// RxSwift
|
|
//
|
|
// Created by Krunoslav Zaher on 4/14/19.
|
|
// Copyright © 2019 Krunoslav Zaher. All rights reserved.
|
|
//
|
|
|
|
import Dispatch
|
|
import Foundation
|
|
|
|
extension DispatchTimeInterval {
|
|
var convertToSecondsFactor: Double {
|
|
switch self {
|
|
case .nanoseconds: return 1_000_000_000.0
|
|
case .microseconds: return 1_000_000.0
|
|
case .milliseconds: return 1_000.0
|
|
case .seconds: return 1.0
|
|
case .never: fatalError()
|
|
@unknown default: fatalError()
|
|
}
|
|
}
|
|
|
|
func map(_ transform: (Int, Double) -> Int) -> DispatchTimeInterval {
|
|
switch self {
|
|
case .nanoseconds(let value): return .nanoseconds(transform(value, 1_000_000_000.0))
|
|
case .microseconds(let value): return .microseconds(transform(value, 1_000_000.0))
|
|
case .milliseconds(let value): return .milliseconds(transform(value, 1_000.0))
|
|
case .seconds(let value): return .seconds(transform(value, 1.0))
|
|
case .never: return .never
|
|
@unknown default: fatalError()
|
|
}
|
|
}
|
|
|
|
var isNow: Bool {
|
|
switch self {
|
|
case .nanoseconds(let value), .microseconds(let value), .milliseconds(let value), .seconds(let value): return value == 0
|
|
case .never: return false
|
|
@unknown default: fatalError()
|
|
}
|
|
}
|
|
|
|
internal func reduceWithSpanBetween(earlierDate: Date, laterDate: Date) -> DispatchTimeInterval {
|
|
return self.map { value, factor in
|
|
let interval = laterDate.timeIntervalSince(earlierDate)
|
|
let remainder = Double(value) - interval * factor
|
|
guard remainder > 0 else { return 0 }
|
|
return Int(remainder.rounded(.toNearestOrAwayFromZero))
|
|
}
|
|
}
|
|
}
|
|
|
|
extension Date {
|
|
|
|
internal func addingDispatchInterval(_ dispatchInterval: DispatchTimeInterval) -> Date {
|
|
switch dispatchInterval {
|
|
case .nanoseconds(let value), .microseconds(let value), .milliseconds(let value), .seconds(let value):
|
|
return self.addingTimeInterval(TimeInterval(value) / dispatchInterval.convertToSecondsFactor)
|
|
case .never: return Date.distantFuture
|
|
@unknown default: fatalError()
|
|
}
|
|
}
|
|
|
|
}
|