Hook up fswatcher to csv parser, needs proper filename parsing.

Stars Assistant/CSV/PlanetLoader.cs

@@ -66,19 +66,25 @@ public class PlanetLoader
                     r = db.Race.Find(owner.Key);
                     if (r == null)
                     {
-                        r = new()
-                        {
-                            Name = owner.Key
-                        };
+                        r = new() { Name = owner.Key };
                         db.Add(r);
                     }
                 }
 
                 foreach (Planet csvp in owner)
                 {
-                    Model.Planet p = new Model.Planet{ Name = csvp.Name };
-                    csvp.UpdateDbPlanet(p);
-                    db.Add(p);
+                    Model.Planet? p = db.Planet.Find(csvp.Name);
+                    if (p == null)
+                    {
+                        p = new() { Name = csvp.Name };
+                        csvp.UpdateDbPlanet(p);
+                        db.Add(p);
+                    } 
+                    else 
+                    {
+                        csvp.UpdateDbPlanet(p);
+                        db.Update(p);
+                    }
                 }
                 db.SaveChanges();
             }