Fix another bug where usernames can be saved as null for FlatFileDB

src/main/java/com/gmail/nossr50/api/DatabaseAPI.java

@@ -2,6 +2,8 @@ package com.gmail.nossr50.api;
 
 import com.gmail.nossr50.datatypes.player.PlayerProfile;
 import com.gmail.nossr50.mcMMO;
+import org.bukkit.OfflinePlayer;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.UUID;
 
@@ -9,20 +11,38 @@ public class DatabaseAPI {
 
     /**
      * Checks if a player exists in the mcMMO Database
-     * @param uuid player UUID
+     * @param offlinePlayer target player
      * @return true if the player exists in the DB, false if they do not
      */
-    public boolean doesPlayerExistInDB(String uuid) {
-        return doesPlayerExistInDB(UUID.fromString(uuid));
+    public boolean doesPlayerExistInDB(@NotNull OfflinePlayer offlinePlayer) {
+        PlayerProfile playerProfile = mcMMO.getDatabaseManager().loadPlayerProfile(offlinePlayer);
+
+        return playerProfile.isLoaded();
     }
 
     /**
      * Checks if a player exists in the mcMMO Database
-     * @param uuid player UUID
+     * @param uuid target player
      * @return true if the player exists in the DB, false if they do not
      */
-    public boolean doesPlayerExistInDB(UUID uuid) {
-        PlayerProfile playerProfile = mcMMO.getDatabaseManager().loadPlayerProfile(uuid, null);
+    public boolean doesPlayerExistInDB(@NotNull UUID uuid) {
+        PlayerProfile playerProfile = null;
+        try {
+            playerProfile = mcMMO.getDatabaseManager().loadPlayerProfile(uuid);
+        } catch (Exception e) {
+            return false;
+        }
+
+        return playerProfile.isLoaded();
+    }
+
+    /**
+     * Checks if a player exists in the mcMMO Database
+     * @param playerName target player
+     * @return true if the player exists in the DB, false if they do not
+     */
+    public boolean doesPlayerExistInDB(@NotNull String playerName) {
+        PlayerProfile playerProfile = mcMMO.getDatabaseManager().loadPlayerProfile(playerName);
 
         return playerProfile.isLoaded();
     }