ui: tell the user that migration is going on

Author: pixelspark

Localizable.xcstrings

@@ -19520,6 +19520,40 @@
         }
       }
     },
+    "Upgrading the database. This may take a few minutes, depending on how many files you have. Please do not close the app until this is finished." : {
+      "localizations" : {
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Die Datenbank wird aktualisiert. Dies kann einige Minuten dauern, je nach der Anzahl der Dateien, die Sie haben. Bitte schließen Sie die App nicht, bis dieser Vorgang abgeschlossen ist."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Actualizando la base de datos. Esto puede tardar unos minutos, dependiendo de cuántos archivos tengas. Por favor, no cierres la app hasta que esto termine."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Aggiornamento del database. Questo potrebbe richiedere alcuni minuti, a seconda del numero di file che hai. Si prega di non chiudere l'app finché non è terminato."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "De database wordt bijgewerkt. Dit kan enkele minuten duren, afhankelijk van hoeveel bestanden je hebt. Sluit de app niet totdat dit is voltooid."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Оновлення бази даних. Це може зайняти кілька хвилин, залежно від кількості ваших файлів. Будь ласка, не закривайте програму, доки оновлення не завершиться."
+          }
+        }
+      }
+    },
     "Uptime" : {
       "localizations" : {
         "de" : {

Sushitrain/AppState.swift

@@ -61,6 +61,7 @@ enum AppStartupState: Equatable {
 	@Published var isLogging: Bool = false
 	@Published var foldersWithExtraFiles: [String] = []
 	@Published var startupState: AppStartupState = .notStarted
+	@Published var isMigratedToNewDatabase: Bool = false
 
 	#if os(iOS)
 		@Published var currentAction: QuickAction? = nil
@@ -152,6 +153,7 @@ enum AppStartupState: Equatable {
 		}
 
 		self.performMigrations()
+		self.isMigratedToNewDatabase = !client.hasOldDatabase()
 
 		let client = self.client
 		DispatchQueue.global(qos: .userInitiated).async {
@@ -162,6 +164,8 @@ enum AppStartupState: Equatable {
 				Log.info("Client started")
 
 				DispatchQueue.main.async {
+					// Check to see if we have migrated
+					self.isMigratedToNewDatabase = !client.hasOldDatabase()
 					Log.info("Configuring the user interface...")
 					self.applySettings()
 					self.update()

Sushitrain/ContentView.swift

@@ -14,7 +14,16 @@ struct MainView: View {
 	var body: some View {
 		switch appState.startupState {
 		case .notStarted:
-			ProgressView().progressViewStyle(.circular)
+			VStack(spacing: 10) {
+				ProgressView().progressViewStyle(.circular)
+				if !appState.isMigratedToNewDatabase {
+					// We are likely migrating now
+					Text("Upgrading the database. This may take a few minutes, depending on how many files you have. Please do not close the app until this is finished.")
+						.foregroundStyle(.secondary)
+						.multilineTextAlignment(.center)
+						.frame(maxWidth: 320)
+				}
+			}
 		case .error(let e):
 			ContentUnavailableView("Cannot start the app", systemImage: "exclamationmark.triangle.fill", description: Text(e))
 		case .started:

SushitrainCore/src/sushitrain.go

@@ -475,6 +475,14 @@ func (clt *Client) IsDownloading() bool {
 	return false
 }
 
+func (clt *Client) HasOldDatabase() bool {
+	if _, err := os.Lstat(locations.Get(locations.LegacyDatabase)); err != nil {
+		// No old database
+		return false
+	}
+	return true
+}
+
 // This method loads and migrates the Syncthing database, then starts up an instance. It also starts the streaming web
 // server. This method can take a while to complete and should only ever be called once.
 func (clt *Client) Start() error {