changed name from Apollinare to Zentral

src/backend/Zentral.API/Hubs/DataHub.cs

@@ -0,0 +1,93 @@
+using Microsoft.AspNetCore.SignalR;
+
+namespace Zentral.API.Hubs;
+
+/// <summary>
+/// Hub SignalR per la sincronizzazione in tempo reale dei dati tra client
+/// </summary>
+public class DataHub : Hub
+{
+    /// <summary>
+    /// Notifica tutti i client che un'entità è stata modificata
+    /// </summary>
+    public async Task NotifyDataChanged(string entityType, string action, object? data = null)
+    {
+        try
+        {
+            await Clients.Others.SendAsync("DataChanged", entityType, action, data);
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"[DataHub] Error in NotifyDataChanged: {ex.Message}");
+        }
+    }
+
+    public override async Task OnConnectedAsync()
+    {
+        try
+        {
+            Console.WriteLine($"[DataHub] Client connecting: {Context.ConnectionId}");
+            await base.OnConnectedAsync();
+            Console.WriteLine($"[DataHub] Client connected: {Context.ConnectionId}");
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"[DataHub] Error in OnConnectedAsync: {ex.Message}");
+            throw;
+        }
+    }
+
+    public override async Task OnDisconnectedAsync(Exception? exception)
+    {
+        try
+        {
+            if (exception != null)
+            {
+                Console.WriteLine($"[DataHub] Client disconnected with error: {Context.ConnectionId} - {exception.Message}");
+            }
+            else
+            {
+                Console.WriteLine($"[DataHub] Client disconnected: {Context.ConnectionId}");
+            }
+            await base.OnDisconnectedAsync(exception);
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"[DataHub] Error in OnDisconnectedAsync: {ex.Message}");
+            throw;
+        }
+    }
+}
+
+/// <summary>
+/// Servizio per inviare notifiche dal backend ai client
+/// </summary>
+public class DataNotificationService
+{
+    private readonly IHubContext<DataHub> _hubContext;
+
+    public DataNotificationService(IHubContext<DataHub> hubContext)
+    {
+        _hubContext = hubContext;
+    }
+
+    public async Task NotifyCreated<T>(string entityType, T entity)
+    {
+        await _hubContext.Clients.All.SendAsync("DataChanged", entityType, "created", entity);
+    }
+
+    public async Task NotifyUpdated<T>(string entityType, T entity)
+    {
+        await _hubContext.Clients.All.SendAsync("DataChanged", entityType, "updated", entity);
+    }
+
+    public async Task NotifyDeleted(string entityType, int id)
+    {
+        await _hubContext.Clients.All.SendAsync("DataChanged", entityType, "deleted", new { id });
+    }
+
+    public async Task NotifyBulkChange(string entityType)
+    {
+        await _hubContext.Clients.All.SendAsync("DataChanged", entityType, "bulk", null);
+    }
+}