feat(Immortal) Added a back button

Services/Website/EntityDialogService.cs

@@ -2,9 +2,12 @@
 
 namespace Services.Website;
 
+//TODO Move to a database folder, with EntityService, EntityFilterService
 public class EntityDialogService : IEntityDialogService
 {
     private string? entityId = null;
+
+    private List<string> history = new List<string>();
     
     private event Action _onChange;
 
@@ -23,6 +26,7 @@ public class EntityDialogService : IEntityDialogService
     public void AddDialog(string id)
     {
         entityId = id;
+        history.Add(id);
 
         NotifyDataChanged();
     }
@@ -30,9 +34,29 @@ public class EntityDialogService : IEntityDialogService
     public void CloseDialog()
     {
         entityId = null;
+        history.Clear();
         
         NotifyDataChanged();
     }
+
+    public void BackDialog()
+    {
+        if (history.Count > 1)
+        {
+            history.RemoveAt(history.Count - 1);
+            
+            if (history.Count == 0)
+            {
+                entityId = null;
+                NotifyDataChanged();
+                
+                return;
+            }
+            
+            entityId = history.Last();
+            NotifyDataChanged();
+        }
+    }
     
 
     public bool HasDialog()
@@ -40,6 +64,11 @@ public class EntityDialogService : IEntityDialogService
         return entityId != null;
     }
 
+    public bool HasHistory()
+    {
+        return history.Count > 1;
+    }
+
     public string? GetEntityId()
     {
         return entityId;