Added initial POC version of NetNewsWire for iOS to use as a starting point for the actual app.

iOS/AppDefaults.swift

@@ -0,0 +1,136 @@
+//
+//  AppDefaults.swift
+//  NetNewsWire
+//
+//  Created by Brent Simmons on 9/22/17.
+//  Copyright © 2017 Ranchero Software. All rights reserved.
+//
+
+import UIKit
+
+enum RefreshInterval: Int {
+	case manually = 1
+	case every10Minutes = 2
+	case every30Minutes = 3
+	case everyHour = 4
+	case every2Hours = 5
+	case every4Hours = 6
+	case every8Hours = 7
+
+	func inSeconds() -> TimeInterval {
+		switch self {
+		case .manually:
+			return 0
+		case .every10Minutes:
+			return 10 * 60
+		case .every30Minutes:
+			return 30 * 60
+		case .everyHour:
+			return 60 * 60
+		case .every2Hours:
+			return 2 * 60 * 60
+		case .every4Hours:
+			return 4 * 60 * 60
+		case .every8Hours:
+			return 8 * 60 * 60
+		}
+	}
+}
+
+struct AppDefaults {
+
+	struct Key {
+		static let firstRunDate = "firstRunDate"
+		static let timelineSortDirection = "timelineSortDirection"
+		static let refreshInterval = "refreshInterval"
+	}
+
+	static let isFirstRun: Bool = {
+		if let _ = UserDefaults.standard.object(forKey: Key.firstRunDate) as? Date {
+			return false
+		}
+		firstRunDate = Date()
+		return true
+	}()
+	
+	static var refreshInterval: RefreshInterval {
+		get {
+			let rawValue = UserDefaults.standard.integer(forKey: Key.refreshInterval)
+			return RefreshInterval(rawValue: rawValue) ?? RefreshInterval.everyHour
+		}
+		set {
+			UserDefaults.standard.set(newValue.rawValue, forKey: Key.refreshInterval)
+		}
+	}
+
+	static var timelineSortDirection: ComparisonResult {
+		get {
+			return sortDirection(for: Key.timelineSortDirection)
+		}
+		set {
+			setSortDirection(for: Key.timelineSortDirection, newValue)
+		}
+	}
+
+	static func registerDefaults() {
+		let defaults: [String : Any] = [Key.timelineSortDirection: ComparisonResult.orderedDescending.rawValue, Key.refreshInterval: RefreshInterval.everyHour.rawValue]
+		UserDefaults.standard.register(defaults: defaults)
+	}
+
+}
+
+private extension AppDefaults {
+
+	static var firstRunDate: Date? {
+		get {
+			return date(for: Key.firstRunDate)
+		}
+		set {
+			setDate(for: Key.firstRunDate, newValue)
+		}
+	}
+
+	static func bool(for key: String) -> Bool {
+		return UserDefaults.standard.bool(forKey: key)
+	}
+
+	static func setBool(for key: String, _ flag: Bool) {
+		UserDefaults.standard.set(flag, forKey: key)
+	}
+
+	static func int(for key: String) -> Int {
+		return UserDefaults.standard.integer(forKey: key)
+	}
+	
+	static func setInt(for key: String, _ x: Int) {
+		UserDefaults.standard.set(x, forKey: key)
+	}
+	
+	static func date(for key: String) -> Date? {
+		return UserDefaults.standard.object(forKey: key) as? Date
+	}
+
+	static func setDate(for key: String, _ date: Date?) {
+		UserDefaults.standard.set(date, forKey: key)
+	}
+
+	static func sortDirection(for key:String) -> ComparisonResult {
+		let rawInt = int(for: key)
+		if rawInt == ComparisonResult.orderedAscending.rawValue {
+			return .orderedAscending
+		}
+		return .orderedDescending
+	}
+
+	static func setSortDirection(for key: String, _ value: ComparisonResult) {
+		if value == .orderedAscending {
+			setInt(for: key, ComparisonResult.orderedAscending.rawValue)
+		}
+		else {
+			setInt(for: key, ComparisonResult.orderedDescending.rawValue)
+		}
+	}
+	
+}
+
+