Issue #5: Check server status on start.

dns/ViewModel.swift

@@ -12,6 +12,8 @@ import OSLog
 
 class ViewModel: NSObject, ObservableObject {
 
+    // MARK: Public Properties
+
     @Published
     var blocklist: BlocklistOption = .secure {
         didSet {
@@ -33,9 +35,14 @@ class ViewModel: NSObject, ObservableObject {
         }
     }
 
-    private var isProgrammaticChange = false
+    @Published
+    var summaryStatus: SummaryStatus = .pending
 
 
+    // MARK: Private Properties
+
+    private var isProgrammaticChange = false
+
     private let manager = NEDNSSettingsManager.shared()
 
     private let log = Logger(subsystem: String(describing: ViewModel.self), category: String(describing: ViewModel.self))
@@ -72,9 +79,15 @@ class ViewModel: NSObject, ObservableObject {
                 }
             }
         }
+
+        Task {
+            await fetchServerStatus()
+        }
     }
 
 
+    // MARK: Public Methods
+
     func toggleDns() {
         guard !isProgrammaticChange else {
             // Reset, so next one is recognized as coming from the user again.
@@ -110,6 +123,22 @@ class ViewModel: NSObject, ObservableObject {
         }
     }
 
+    func fetchServerStatus() async {
+        do {
+            let (data, _) = try await URLSession.shared.data(for: .init(url: .init(string: "https://status.sr2.uk/index.json")!))
+
+            let status = try JSONDecoder().decode(Status.self, from: data)
+
+            summaryStatus = status.summaryStatus
+        }
+        catch {
+            log.error("Error while checking status: \(error)")
+        }
+    }
+
+
+    // MARK: Private Methods
+
     private func delayedToggle(_ enabled: Bool) {
         Task {
             try? await Task.sleep(nanoseconds: 500_000_000)