b17fb3c354
- Revamp whole DB to Display flow - Filter Pipeline, arbitrary filtering and sorting - Binary tree arrays for faster lookup & manipulation - DB: introducing custom functions - DB scheme: split req into heap & cache - cache written by GlassVPN only - heap written by Main App only - Introducing DB separation: DBCore, DBCommon, DBAppOnly - Introducing DB data sources: TestDataSource, GroupedDomainDataSource, RecordingsDB, DomainFilter - Background sync: Move entries from cache to heap and notify all observers - GlassVPN: Binary tree filter lookup - GlassVPN: Reusing prepared statement
75 lines
2.2 KiB
Swift
75 lines
2.2 KiB
Swift
import Foundation
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private let dateTimeFormat = DateFormatter(withFormat: "yyyy-MM-dd HH:mm:ss")
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extension DateFormatter {
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convenience init(withFormat: String) {
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self.init()
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dateFormat = withFormat
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}
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}
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extension Timestamp {
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/// Time string with format `yyyy-MM-dd HH:mm:ss`
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func asDateTime() -> String {
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dateTimeFormat.string(from: Date.init(timeIntervalSince1970: Double(self)))
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}
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/// Convert `Timestamp` to `Date`
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func toDate() -> Date {
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Date(timeIntervalSince1970: Double(self))
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}
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/// Current time as `Timestamp` (second accuracy)
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static func now() -> Timestamp {
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Timestamp(Date().timeIntervalSince1970)
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}
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/// Create `Timestamp` with `now() - minutes * 60`
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static func past(minutes: Int) -> Timestamp {
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now() - Timestamp(minutes * 60)
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}
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}
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extension Timer {
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/// Recurring timer maintains a strong reference to `target`.
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@discardableResult static func repeating(_ interval: TimeInterval, call selector: Selector, on target: Any, userInfo: Any? = nil) -> Timer {
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Timer.scheduledTimer(timeInterval: interval, target: target, selector: selector,
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userInfo: userInfo, repeats: true)
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}
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}
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struct TimeFormat {
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/// Time string with format `HH:mm`
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static func from(_ duration: Timestamp) -> String {
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String(format: "%02d:%02d", duration / 60, duration % 60)
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}
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/// Duration string with format `HH:mm` or `HH:mm.sss`
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static func from(_ duration: TimeInterval, millis: Bool = false) -> String {
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let t = Int(duration)
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if millis {
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let mil = Int(duration * 1000) % 1000
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return String(format: "%02d:%02d.%03d", t / 60, t % 60, mil)
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}
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return String(format: "%02d:%02d", t / 60, t % 60)
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}
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/// Duration string with format `HH:mm` or `HH:mm.sss` since reference date
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static func since(_ date: Date, millis: Bool = false) -> String {
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from(Date().timeIntervalSince(date), millis: millis)
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}
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/// Formatted duration string, e.g., `20 min` or `7 days`
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/// - Parameters:
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/// - minutes: Duration in minutes
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/// - style: Default: `.short`
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static func short(minutes: Int, style: DateComponentsFormatter.UnitsStyle = .short) -> String? {
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let dcf = DateComponentsFormatter()
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dcf.maximumUnitCount = 1
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dcf.allowedUnits = [.day, .hour, .minute]
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dcf.unitsStyle = style
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return dcf.string(from: DateComponents(minute: minutes))
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}
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}
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