add save & load commands

plugin/src/main/java/lol/pyr/znpcsplus/ZNpcsPlus.java

@@ -14,6 +14,8 @@ import lol.pyr.znpcsplus.commands.parsers.EntityPropertyParser;
 import lol.pyr.znpcsplus.commands.parsers.NamedTextColorParser;
 import lol.pyr.znpcsplus.commands.parsers.NpcEntryParser;
 import lol.pyr.znpcsplus.commands.parsers.NpcTypeParser;
+import lol.pyr.znpcsplus.commands.storage.LoadAllCommand;
+import lol.pyr.znpcsplus.commands.storage.SaveAllCommand;
 import lol.pyr.znpcsplus.config.Configs;
 import lol.pyr.znpcsplus.entity.EntityPropertyImpl;
 import lol.pyr.znpcsplus.interaction.InteractionPacketListener;
@@ -197,6 +199,9 @@ public class ZNpcsPlus extends JavaPlugin {
                 .addSubcommand("teleport", new TeleportCommand())
                 .addSubcommand("list", new ListCommand())
                 .addSubcommand("near", new NearCommand())
+                .addSubcommand("storage", new MultiCommand()
+                        .addSubcommand("save", new SaveAllCommand())
+                        .addSubcommand("load", new LoadAllCommand()))
                 .addSubcommand("holo", new MultiCommand()
                         .addSubcommand("add", new HoloAddCommand())
                         .addSubcommand("delete", new HoloDeleteCommand())

plugin/src/main/java/lol/pyr/znpcsplus/commands/storage/LoadAllCommand.java

@@ -0,0 +1,27 @@
+package lol.pyr.znpcsplus.commands.storage;
+
+import lol.pyr.director.adventure.command.CommandContext;
+import lol.pyr.director.adventure.command.CommandHandler;
+import lol.pyr.director.common.command.CommandExecutionException;
+import lol.pyr.znpcsplus.npc.NpcRegistryImpl;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+public class LoadAllCommand implements CommandHandler {
+    @Override
+    public void run(CommandContext context) throws CommandExecutionException {
+        CompletableFuture.runAsync(() -> {
+            NpcRegistryImpl.get().reload();
+            context.send(Component.text("All NPCs have been re-loaded from storage", NamedTextColor.GREEN));
+        });
+    }
+
+    @Override
+    public List<String> suggest(CommandContext context) throws CommandExecutionException {
+        return Collections.emptyList();
+    }
+}

plugin/src/main/java/lol/pyr/znpcsplus/commands/storage/SaveAllCommand.java

@@ -0,0 +1,27 @@
+package lol.pyr.znpcsplus.commands.storage;
+
+import lol.pyr.director.adventure.command.CommandContext;
+import lol.pyr.director.adventure.command.CommandHandler;
+import lol.pyr.director.common.command.CommandExecutionException;
+import lol.pyr.znpcsplus.npc.NpcRegistryImpl;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+public class SaveAllCommand implements CommandHandler {
+    @Override
+    public void run(CommandContext context) throws CommandExecutionException {
+        CompletableFuture.runAsync(() -> {
+            NpcRegistryImpl.get().save();
+            context.send(Component.text("All NPCs have been saved to storage", NamedTextColor.GREEN));
+        });
+    }
+
+    @Override
+    public List<String> suggest(CommandContext context) throws CommandExecutionException {
+        return Collections.emptyList();
+    }
+}