add Sparkle appcast

Sources/Views/MainView.swift

@@ -12,15 +12,13 @@ struct MainView: View {
     private static let serverOrderKeyStatic = "serverOrder"
     private static let storedServersKeyStatic = "storedServers"
 
-    @EnvironmentObject private var updateViewModel: UpdateViewModel
+    @EnvironmentObject private var sparkleUpdater: SparkleUpdater
     @State var showAddServerSheet: Bool = false
     @State private var serverBeingEdited: Server?
     @State private var serverToDelete: Server?
     @State private var showDeleteConfirmation = false
     @State private var isFetchingInfo: Bool = false
     @State private var refreshTimer = Timer.publish(every: 60, on: .main, in: .common).autoconnect()
-    @State private var progress: Double = 0
-    @State private var lastRefresh = Date()
     @State private var pingTimer: Timer?
     private let serverOrderKey = MainView.serverOrderKeyStatic
     private let storedServersKey = MainView.storedServersKeyStatic
@@ -64,14 +62,9 @@ struct MainView: View {
                 }
                 ToolbarItem {
                     Button {
-                        updateViewModel.checkForUpdates(userInitiated: true)
+                        sparkleUpdater.checkForUpdates()
                     } label: {
-                        if updateViewModel.isChecking {
-                            ProgressView()
-                                .scaleEffect(0.6)
-                        } else {
-                            Image(systemName: "square.and.arrow.down")
-                        }
+                        Image(systemName: "square.and.arrow.down")
                     }
                     .help("Check for Updates")
                 }
@@ -144,26 +137,8 @@ struct MainView: View {
             pingTimer = Timer.scheduledTimer(withTimeInterval: 10.0, repeats: true) { _ in
                 pingAllServers()
             }
-            updateViewModel.startAutomaticCheckIfNeeded()
         }
         .frame(minWidth: 800, minHeight: 450)
-        .alert(item: availableReleaseBinding) { release in
-            Alert(
-                title: Text("Update Available"),
-                message: Text("iKeyMon \(release.versionString) is available."),
-                primaryButton: .default(Text("Download")) {
-                    updateViewModel.downloadLatest()
-                },
-                secondaryButton: .cancel(Text("Later"))
-            )
-        }
-        .alert(item: statusAlertBinding) { alert in
-            Alert(
-                title: Text(alert.title),
-                message: Text(alert.message),
-                dismissButton: .default(Text("OK"))
-            )
-        }
     }
     
     private func fetchServerInfo(for id: UUID) {
@@ -290,23 +265,9 @@ struct MainView: View {
             return []
         }
     }
-
-    private var availableReleaseBinding: Binding<ReleaseInfo?> {
-        Binding(
-            get: { updateViewModel.availableRelease },
-            set: { updateViewModel.availableRelease = $0 }
-        )
-    }
-
-    private var statusAlertBinding: Binding<UpdateViewModel.StatusAlert?> {
-        Binding(
-            get: { updateViewModel.statusAlert },
-            set: { updateViewModel.statusAlert = $0 }
-        )
-    }
 }
 
 #Preview {
     MainView()
-        .environmentObject(UpdateViewModel())
+        .environmentObject(SparkleUpdater())
 }