Allow profile card to be actually moved

ProjectLighthouse/Controllers/UserController.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using System.Xml;
@@ -35,32 +36,71 @@ namespace ProjectLighthouse.Controllers {
             if(user == null) return this.BadRequest();
 
             XmlReaderSettings settings = new() {
-                Async = true
+                Async = true // this is apparently not default
             };
 
+            bool locationChanged = false;
+
+            // this is an absolute mess, but necessary because LBP only sends what changed
+            //
+            // example for changing profile card location:
+            // <updateUser>
+            //     <location>
+            //         <x>1234</x>
+            //         <y>1234</y>
+            //     </location>
+            // </updateUser>
+            //
+            // example for changing biography:
+            // <updateUser>
+            //     <biography>biography stuff</biography>
+            // </updateUser>
+            //
+            // if you find a way to make it not stupid feel free to replace this
             using(XmlReader reader = XmlReader.Create(Request.Body, settings)) {
-                string currentElement = "";
+                List<string> path = new(); // you can think of this as a file path in the XML, like <updateUser> -> <location> -> <x>
                 while(await reader.ReadAsync()) {
                     switch(reader.NodeType) {
                         case XmlNodeType.Element:
-                            currentElement = reader.Name;
+                            path.Add(reader.Name);
                             break;
                         case XmlNodeType.Text:
-                            switch(currentElement) {
+                            switch(path[1]) {
                                 case "biography": {
                                     user.Biography = await reader.GetValueAsync();
                                     break;
                                 }
+                                case "location": {
+                                    locationChanged = true; // if we're here then we're probably about to change the location.
+                                    // ReSharper disable once ConvertIfStatementToSwitchStatement
+                                    if(path[2] == "x") {
+                                        user.Location.X = Convert.ToInt32(await reader.GetValueAsync()); // GetValue only returns a string, i guess we just hope its a number lol
+                                    } else if(path[2] == "y") {
+                                        user.Location.Y = Convert.ToInt32(await reader.GetValueAsync());
+                                    }
+                                    break;
+                                }
                             }
                             break;
                         case XmlNodeType.EndElement:
-                            currentElement = "";
+                            path.RemoveAt(path.Count - 1);
                             break;
                     }
                 }
             }
+            
+            // the way location on a user card works is stupid and will not save with the way below as-is, so we do the following:
+            if(locationChanged) { // only modify the database if we modify here
+                Location l = await database.Locations.Where(l => l.Id == user.LocationId).FirstOrDefaultAsync(); // find the location in the database again
 
-            if(database.ChangeTracker.HasChanges()) await database.SaveChangesAsync();
+                // set the location in the database to the one we modified above
+                l.X = user.Location.X;
+                l.Y = user.Location.Y;
+                
+                // now both are in sync, and will update in the database.
+            }
+            
+            if(database.ChangeTracker.HasChanges()) await database.SaveChangesAsync(); // save the user to the database if we changed anything
             return this.Ok();
         }
     }

ProjectLighthouse/Types/User.cs

@@ -100,7 +100,7 @@ namespace ProjectLighthouse.Types {
                           LbpSerializer.StringElement("photosByMeCount", this.PhotosByMeCount) +
                           LbpSerializer.StringElement("photosWithMeCount", this.PhotosWithMeCount) +
                           LbpSerializer.StringElement("commentsEnabled", this.CommentsEnabled) +
-                          this.Location.Serialize() +
+                          LbpSerializer.StringElement("location", this.Location.Serialize()) +
                           LbpSerializer.StringElement("favouriteSlotCount", this.FavouriteSlotCount) +
                           LbpSerializer.StringElement("favouriteUserCount", this.FavouriteUserCount) +
                           LbpSerializer.StringElement("lolcatftwCount", this.lolcatftwCount) +