Reorg

Secretive/Controllers/Updater.swift

@@ -0,0 +1,82 @@
+import Foundation
+import Combine
+
+protocol UpdaterProtocol: ObservableObject {
+
+    var update: Release? { get }
+
+}
+
+class Updater: ObservableObject, UpdaterProtocol {
+
+    @Published var update: Release?
+
+    init() {
+        checkForUpdates()
+        let timer = Timer.scheduledTimer(withTimeInterval: 60*60*24, repeats: true) { _ in
+            self.checkForUpdates()
+        }
+        timer.tolerance = 60*60
+    }
+
+    func checkForUpdates() {
+        URLSession.shared.dataTask(with: Constants.updateURL) { data, _, _ in
+            guard let data = data else { return }
+            guard let release = try? JSONDecoder().decode(Release.self, from: data) else { return }
+            self.evaluate(release: release)
+        }.resume()
+    }
+
+    func evaluate(release: Release) {
+        let latestVersion = semVer(from: release.name)
+        let currentVersion = semVer(from: Bundle.main.infoDictionary!["CFBundleShortVersionString"] as! String)
+        for (latest, current) in zip(latestVersion, currentVersion) {
+            if latest > current {
+                DispatchQueue.main.async {
+                    self.update = release
+                }
+                return
+            }
+        }
+    }
+
+    func semVer(from stringVersion: String) -> [Int] {
+        var split = stringVersion.split(separator: ".").compactMap { Int($0) }
+        while split.count < 3 {
+            split.append(0)
+        }
+        return split
+    }
+
+}
+
+extension Updater {
+
+    enum Constants {
+        static let updateURL = URL(string: "https://api.github.com/repos/maxgoedjen/secretive/releases/latest")!
+    }
+
+}
+
+struct Release: Codable {
+    let name: String
+    let html_url: URL
+    let body: String
+}
+
+
+extension Release {
+
+    var critical: Bool {
+        return body.contains(Constants.securityContent)
+    }
+
+}
+
+extension Release {
+
+    enum Constants {
+        static let securityContent = "Critical Security Update"
+    }
+
+}