big ass refactor to handle loading guilds and users without spring to make it more futureproof

src/main/java/cc/fascinated/bat/model/BatUser.java

@@ -1,18 +1,26 @@
 package cc.fascinated.bat.model;
 
+import cc.fascinated.bat.BatApplication;
 import cc.fascinated.bat.common.ProfileHolder;
+import cc.fascinated.bat.common.Serializable;
 import cc.fascinated.bat.features.namehistory.profile.user.NameHistoryProfile;
 import cc.fascinated.bat.features.scoresaber.profile.user.ScoreSaberProfile;
 import cc.fascinated.bat.service.DiscordService;
+import cc.fascinated.bat.service.MongoService;
+import com.mongodb.client.model.ReplaceOptions;
 import lombok.Getter;
 import lombok.NonNull;
 import lombok.RequiredArgsConstructor;
 import lombok.Setter;
 import net.dv8tion.jda.api.entities.User;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.mongodb.core.mapping.Document;
 
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * @author Fascinated (fascinated7)
@@ -22,6 +30,12 @@ import java.util.Date;
 @Setter
 @Document(collection = "users")
 public class BatUser extends ProfileHolder {
+    private static final Logger log = LoggerFactory.getLogger(BatUser.class);
+    /**
+     * The document that belongs to this user
+     */
+    private final org.bson.Document document;
+
     /**
      * The ID of the user
      */
@@ -32,7 +46,14 @@ public class BatUser extends ProfileHolder {
     /**
      * The time this user was created
      */
-    private Date createdAt = new Date();
+    private Date createdAt;
+
+    public BatUser(@NonNull String id, @NonNull org.bson.Document document) {
+        this.id = id;
+        this.document = document;
+        boolean newAccount = this.document.isEmpty();
+        this.createdAt = newAccount ? new Date() : document.getDate("createdAt");
+    }
 
     /**
      * The name of the user
@@ -67,4 +88,29 @@ public class BatUser extends ProfileHolder {
     public NameHistoryProfile getNameHistoryProfile() {
         return getProfile(NameHistoryProfile.class);
     }
+
+    /**
+     * Saves the user
+     */
+    public void save() {
+        document.put("_id", id);
+        document.put("createdAt", createdAt);
+
+        Map<String, org.bson.Document> profileDocuments = new HashMap<>();
+        for (Serializable profile : getProfiles().values()) {
+            profileDocuments.put(profile.getClass().getSimpleName(), profile.serialize(BatApplication.GSON));
+        }
+        document.put("profiles", profileDocuments);
+
+        MongoService.INSTANCE.getUsersCollection().replaceOne(
+                new org.bson.Document("_id", id),
+                this.getDocument(),
+                new ReplaceOptions().upsert(true)
+        );
+    }
+
+    @Override
+    public <T extends Serializable> T getProfile(Class<T> clazz) {
+        return getProfileFromDocument(clazz, document);
+    }
 }