LeadKit/Sources/Extensions/TimeInterval/TimeInterval+DateComponents...

81 lines
3.2 KiB
Swift

//
// Copyright (c) 2017 Touch Instinct
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
import Foundation
extension TimeInterval {
private static let secondsInMinute = 60
private static let minutesInHour = 60
private static let hoursInDay = 24
private static let secondsInHour = secondsInMinute * minutesInHour
private static let secondsInDay = secondsInHour * hoursInDay
public typealias TimeComponents = (days: Int, hours: Int, minutes: Int, seconds: Int)
/**
Deserialize TimeInterval from string
Works fine for values like 0:0, 0:0:0, 000:00:00, 0.00:00:00
- parameter timeString: serialized value
- parameter timeSeparator: separator between hours and minutes and seconds
- parameter daySeparator: separator between time value and days count value
*/
public init(timeString: String, timeSeparator: String = ":", daySeparator: String = ".") {
let timeComponents = timeString.components(separatedBy: daySeparator)
let dayComponent = timeComponents.first ?? ""
let fullDays = Double(dayComponent) ?? 0
let timeComponent = timeComponents.last ?? ""
let timeValue = timeComponent
.components(separatedBy: timeSeparator)
.reversed()
.enumerated()
.reduce(0.0) { interval, part in
let partElement = Double(part.element) ?? 0
return interval + partElement * pow(Double(TimeInterval.secondsInMinute), Double(part.offset))
}
self = (fullDays * Double(TimeInterval.secondsInDay)) + timeValue
}
/**
Returns a tuple with date components, contained in TimeInterval value
Supported components: days, hours, minutes, seconds
*/
public var timeComponents: TimeComponents {
var timeInterval = Int(self)
let days = (timeInterval / TimeInterval.secondsInDay) % TimeInterval.secondsInDay
timeInterval -= days * TimeInterval.secondsInDay
return (
days,
(timeInterval / TimeInterval.secondsInHour) % TimeInterval.secondsInHour,
(timeInterval / TimeInterval.secondsInMinute) % TimeInterval.secondsInMinute,
timeInterval % TimeInterval.secondsInMinute
)
}
}