Add upload, preview sheet

CHDataManagement/Server/WebServer.swift

@@ -10,6 +10,9 @@ final class WebServer: NSObject, ObservableObject, WKNavigationDelegate {
     @Published
     var isRunning = false
 
+    @Published
+    var isStarting = false
+
     @Published
     var port: Int
 
@@ -19,6 +22,10 @@ final class WebServer: NSObject, ObservableObject, WKNavigationDelegate {
     @Published
     var currentUrl: String = ""
 
+    var isNotReady: Bool {
+        isStarting || !isRunning
+    }
+
     init(port: Int) {
         self.port = port
         super.init()
@@ -40,6 +47,9 @@ final class WebServer: NSObject, ObservableObject, WKNavigationDelegate {
             print("WebServer: Already running")
             return
         }
+        guard !isStarting else { return }
+        self.isStarting = true
+
         Task {
             var vaporArgs = CommandLine.arguments
             let allowedCommands = ["serve", "routes"]
@@ -52,11 +62,10 @@ final class WebServer: NSObject, ObservableObject, WKNavigationDelegate {
             app.middleware.use(TryFilesMiddleware(publicDirectory: directory))
             app.http.server.configuration.port = 8000
 
-            DispatchQueue.main.async {
-                self.isRunning = true
-            }
             DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(3)) {
                 self.loadHomeUrl()
+                self.isStarting = false
+                self.isRunning = true
             }
             print("WebServer: Starting")
             try await app.execute()