Add CloudKit status indicator to advanced prefs

Tusker/Screens/Preferences/AdvancedPrefsView.swift

@@ -8,15 +8,18 @@
 import SwiftUI
 import Pachyderm
 import CoreData
+import CloudKit
 
 struct AdvancedPrefsView : View {
     @ObservedObject var preferences = Preferences.shared
     @State private var imageCacheSize: Int64 = 0
     @State private var mastodonCacheSize: Int64 = 0
+    @State private var cloudKitStatus: CKAccountStatus?
     
     var body: some View {
         List {
             formattingSection
+            cloudKitSection
             errorReportingSection
             cachingSection
         }
@@ -49,6 +52,39 @@ struct AdvancedPrefsView : View {
         }
     }
     
+    var cloudKitSection: some View {
+        Section {
+            HStack {
+                Text("iCloud Status")
+                Spacer()
+                switch cloudKitStatus {
+                case nil:
+                    EmptyView()
+                case .available:
+                    Text("Available")
+                case .couldNotDetermine:
+                    Text("Could not determine")
+                case .noAccount:
+                    Text("No account")
+                case .restricted:
+                    Text("Restricted")
+                case .temporarilyUnavailable:
+                    Text("Temporarily Unavailable")
+                @unknown default:
+                    Text(String(describing: cloudKitStatus!))
+                }
+            }
+        }.task {
+            CKContainer.default().accountStatus { status, error in
+                if let error {
+                    Logging.general.error("Unable to get CloudKit status: \(String(describing: error))")
+                } else {
+                    self.cloudKitStatus = status
+                }
+            }
+        }
+    }
+    
     var errorReportingSection: some View {
         Section {
             Toggle("Report Errors Automatically", isOn: $preferences.reportErrorsAutomatically)