Merge branch 'dev/multiple-notes'

NoteHub.cs

@@ -14,11 +14,29 @@ namespace BinaryDad.Notes
             this.noteService = noteService;
         }
 
-        public async Task SaveNote(string content)
+        public override Task OnConnectedAsync()
         {
-            noteService.Save(content);
+            var noteName = Context.GetHttpContext().Request.Query["noteName"];
 
-            await Clients.Others.SendAsync("updateNote", content);
+            NoteContext.ClientNotes[Context.ConnectionId] = noteName;
+
+            return base.OnConnectedAsync();
+        }
+
+        public async Task SaveNote(string content, string? noteName)
+        {
+            noteService.SaveText(content, noteName);
+
+            // find all other connections except for the current one
+            var clientConnections = NoteContext.ClientNotes
+                .Where(c => c.Value == noteName && c.Key != Context.ConnectionId)
+                .Select(c => c.Key)
+                .ToList();
+
+            // update note for all other clients
+            await Clients
+                .Clients(clientConnections)
+                .SendAsync("updateNote", content);
         }
     }
 }