Start import command. Just have to add output messages.

src/main/java/me/lokka30/phantomworlds/commands/phantomworlds/PWCommand.java

@@ -21,6 +21,7 @@
 import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.CompatibilityCommand;
 import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.DebugCommand;
 import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.DeleteCommand;
+import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.ImportCommand;
 import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.InfoCommand;
 import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.ListCommand;
 import me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub.ReloadCommand;
@@ -92,7 +93,7 @@ public void gamerule(BukkitCommandActor actor) {
   @Subcommand({"import", "im"})
   @CommandPermission("phantomworlds.command.phantomworlds.import")
   public void importCMD(BukkitCommandActor actor, final World world) {
-    InfoCommand.onCommand(actor);
+    ImportCommand.onCommand(actor, world);
   }
 
   @Subcommand({"info", "i"})

src/main/java/me/lokka30/phantomworlds/commands/phantomworlds/parameters/sub/ImportCommand.java

@@ -0,0 +1,55 @@
+package me.lokka30.phantomworlds.commands.phantomworlds.parameters.sub;
+/*
+ * Phantom Worlds
+ * Copyright (C) 2023 Daniel "creatorfromhell" Vidmar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import me.lokka30.phantomworlds.PhantomWorlds;
+import me.lokka30.phantomworlds.world.PhantomWorld;
+import org.bukkit.GameMode;
+import org.bukkit.World;
+import revxrsal.commands.bukkit.BukkitCommandActor;
+
+/**
+ * ImportCommand
+ *
+ * @author creatorfromhell
+ * @since 2.0.5.0
+ */
+public class ImportCommand {
+
+  public static void onCommand(final BukkitCommandActor actor, final World world) {
+
+    if(world == null) {
+      //TODO: send message world doesn't exist, can't import.
+      return;
+    }
+
+    final String cfgPath = "worlds-to-load." + world.getName() + ".";
+    if(PhantomWorlds.instance().data.getConfig().contains(cfgPath)) {
+      //TODO: Already a PhantomWorlds managed world.
+      return;
+    }
+
+    final PhantomWorld pworld = new PhantomWorld(
+            world.getName(), world.getEnvironment(), world.canGenerateStructures(), null,
+            null, world.isHardcore(), world.getSeed(), world.getWorldType(), world.getAllowMonsters(),
+            world.getAllowAnimals(), world.getKeepSpawnInMemory(), world.getPVP(), world.getDifficulty(), GameMode.SURVIVAL
+    );
+    pworld.save();
+    //TODO: world imported and will be managed by phantomworlds
+  }
+}