Make progress reading/writing Account feeds and folders to disk.

Frameworks/Account/Account.swift

@@ -33,7 +33,7 @@ public final class Account: DisplayNameProvider, Hashable {
 	let settingsFile: String
 	let dataFolder: String
 	let database: Database
-	var topLevelObjects = [AnyObject]()
+	var topLevelObjects = [Any]()
 	var feedIDDictionary = [String: Feed]()
 	var username: String?
 	var refreshInProgress = false
@@ -56,6 +56,8 @@ public final class Account: DisplayNameProvider, Hashable {
 		
 		let databaseFilePath = (dataFolder as NSString).appendingPathComponent("DB.sqlite3")
 		self.database = Database(databaseFilePath: databaseFilePath, accountID: accountID)
+
+		pullObjectsFromDisk()
 	}
 	
 	// MARK: - API
@@ -122,13 +124,68 @@ public final class Account: DisplayNameProvider, Hashable {
 }
 
 
-extension Account: PlistProvider {
+// MARK: - Disk
+
+extension Account {
 	
 	public func plist() -> AnyObject? {
 		return nil // TODO
 	}
+
+	private struct Key {
+		static let children = "children"
+	}
+
+	func pullObjectsFromDisk() {
+
+		guard let d = NSDictionary(contentsOf: settingsFile) as? [String: Any] else {
+			return
+		}
+		guard let childrenArray = d[Key.children] as? [Any] else {
+			return
+		}
+		topLevelObjects = objects(with: childrenArray)
+		updateFeedIDDictionary()
+	}
+
+	func objects(with diskObjects: [[String: Any]]) -> [Any] {
+
+		return diskObjects.flatMap { object(with: $0) }
+	}
+
+	func object(with diskObject: Any) -> Any {
+
+		guard let d = diskObject as? [String: Any] else {
+			return nil
+		}
+		if diskObjectIsFeed(diskObject) {
+			return Feed(accountID: accountID, dictionary: diskObject)
+		}
+		return Folder(accountID: accountID, dictionary: diskObject)
+	}
+
+	private func diskObjectIsFeed(_ diskObject: [String: Any]) -> Bool {
+
+		return d[Feed.Key.url] != nil
+	}
 }
 
+// Mark: - FeedIDDictionary
+
+private extension Account {
+
+	func updateFeedIDDictionary() {
+
+		var d = [String: Feed]()
+		for feed in flattenedFeeds() {
+			d[feed.feedID] = feed
+		}
+		feedIDDictionary = d
+	}
+}
+
+// MARK: - OPMLRepresentable
+
 extension Account: OPMLRepresentable {
 
 	public func OPMLString(indentLevel: Int) -> String {

Frameworks/Account/Folder.swift

@@ -12,8 +12,9 @@ import Data
 public final class Folder: DisplayNameProvider, UnreadCountProvider {
 
 	public let accountID: String
-	var childObjects = [AnyObject]()
-	
+	var children = [Any]()
+	var name: String?
+
 	public var account: Account? {
 		get {
 			return accountWithID(accountID)
@@ -22,7 +23,12 @@ public final class Folder: DisplayNameProvider, UnreadCountProvider {
 	
 	// MARK: - DisplayNameProvider
 
-	public var nameForDisplay: String
+	public var nameForDisplay: String {
+		get {
+			return name ?? NSLocalizedString("Untitled ƒ", comment: "Folder name")
+
+		}
+	}
 
 	// MARK: - UnreadCountProvider
 
@@ -41,6 +47,53 @@ public final class Folder: DisplayNameProvider, UnreadCountProvider {
 		self.accountID = accountID
 		self.nameForDisplay = nameForDisplay
 	}
+
+	// MARK: - Disk Dictionary
+
+	struct Key {
+		static let name = "name"
+		static let unreadCount = "unreadCount"
+		static let childrenKey = "children"
+	}
+
+	convenience public init?(account: Account, dictionary: [String: Any]) {
+
+		self.name = dictionary[Key.name]
+
+		if let childrenArray = dictionary[Key.childrenKey] {
+			self.childObjects = account.objects(with: childrenArray)
+		}
+
+		if let savedUnreadCount = dictionary[Key.unreadCount] as? Int {
+			self.unreadCount = savedUnreadCount
+		}
+	}
+
+	public var dictionary: [String: Any] {
+		get {
+			var d = [String: Any]()
+
+			if let name = name {
+				d[Key.name] = name
+			}
+			if unreadCount > 0 {
+				d[Key.unreadCount] = unreadCount
+			}
+
+			// TODO: children as dictionaries - use method in Account
+
+
+			let childObjects = children.flatMap { (child) -> [String: Any]? in
+
+				if let feed = child as? Feed {
+
+				}
+			}
+
+			return d
+		}
+	}
+
 }
 
 extension Folder: OPMLRepresentable {

Frameworks/Data/Feed.swift

@@ -52,7 +52,7 @@ public final class Feed: DisplayNameProvider, UnreadCountProvider, Hashable {
 
 	// MARK: - Disk Dictionary
 
-	private struct Key {
+	struct Key {
 		static let url = "url"
 		static let feedID = "feedID"
 		static let homePageURL = "homePageURL"
@@ -106,7 +106,7 @@ public final class Feed: DisplayNameProvider, UnreadCountProvider, Hashable {
 				d[Key.unreadCount] = unreadCount
 			}
 			if let conditionalGetInfo = conditionalGetInfo {
-				d[Key.conditionalGetInfo] = conditionalGetInfo.dictionary
+				d[Key.conditionalGetInfo] = conditionalGetInfo.dOictionary
 			}
 
 			return d