Dactyloidae iOS initial commit

mobile/ios/ReadingList/ReadingListServerMetadata.swift

@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import Foundation
+
+public struct ReadingListServerMetadata: Equatable {
+    public var guid: String
+    public var lastModified: ReadingListTimestamp
+
+    init(guid: String, lastModified: ReadingListTimestamp) {
+        self.guid = guid
+        self.lastModified = lastModified
+    }
+
+    /// Initialize from server record.
+    init?(json: [String: Any]) {
+        self.init(data: json)
+    }
+
+    init?(row: [String: Any]) {
+        self.init(data: row)
+    }
+
+    private init?(data: [String: Any]) {
+        guard let guid = data["id"] as? String,
+            let lastModified = data["last_modified"] as? Int64 else {
+                return nil
+        }
+        self.guid = guid
+        self.lastModified = lastModified
+    }
+}
+
+public func ==(lhs: ReadingListServerMetadata, rhs: ReadingListServerMetadata) -> Bool {
+    return lhs.guid == rhs.guid && lhs.lastModified == rhs.lastModified
+}