/offlinetp command

src/main/java/de/shiewk/smoderation/paper/SModerationPaper.java

@@ -72,6 +72,7 @@ public final class SModerationPaper extends JavaPlugin {
             registerCommand(commands, new UnbanCommand());
             registerCommand(commands, new MuteCommand());
             registerCommand(commands, new BanCommand());
+            registerCommand(commands, new OfflineTPCommand());
         });
 
         SchedulerUtil.scheduleGlobalRepeating(PLUGIN, CustomInventoryListener::onTick, 1, 1);

src/main/java/de/shiewk/smoderation/paper/command/OfflineTPCommand.java

@@ -0,0 +1,65 @@
+package de.shiewk.smoderation.paper.command;
+
+import com.mojang.brigadier.Command;
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.mojang.brigadier.tree.LiteralCommandNode;
+import de.shiewk.smoderation.paper.command.argument.OfflinePlayerArgument;
+import de.shiewk.smoderation.paper.util.CommandUtil;
+import de.shiewk.smoderation.paper.util.PlayerUtil;
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import org.bukkit.Location;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.bukkit.event.player.PlayerTeleportEvent;
+
+import java.util.Collection;
+import java.util.List;
+
+import static de.shiewk.smoderation.paper.SModerationPaper.*;
+import static io.papermc.paper.command.brigadier.Commands.argument;
+import static io.papermc.paper.command.brigadier.Commands.literal;
+import static net.kyori.adventure.text.Component.text;
+
+public final class OfflineTPCommand implements CommandProvider {
+
+    @Override
+    public LiteralCommandNode<CommandSourceStack> getCommandNode() {
+        return literal("offlinetp")
+            .requires(CommandUtil.requirePermission("smod.offlinetp"))
+            .then(argument("player", new OfflinePlayerArgument())
+                    .executes(this::offlineTeleport)
+            )
+            .build();
+    }
+
+    private int offlineTeleport(CommandContext<CommandSourceStack> context) throws CommandSyntaxException {
+        Player sender = CommandUtil.getExecutingPlayer(context.getSource());
+        OfflinePlayer player = context.getArgument("player", OfflinePlayer.class);
+
+        Location location = player.getLocation();
+
+        if (location == null) {
+            CommandUtil.error("This player's location is unknown.");
+        }
+
+        sender.teleportAsync(location, PlayerTeleportEvent.TeleportCause.COMMAND);
+        sender.sendMessage(CHAT_PREFIX.append(
+                text("Teleporting you to ").color(PRIMARY_COLOR)
+                        .append(text(PlayerUtil.offlinePlayerName(player.getUniqueId())).colorIfAbsent(SECONDARY_COLOR))
+                        .append(text("."))
+        ));
+
+        return Command.SINGLE_SUCCESS;
+    }
+
+    @Override
+    public String getCommandDescription() {
+        return "Teleports you to an offline player.";
+    }
+
+    @Override
+    public Collection<String> getAliases() {
+        return List.of("smodofflinetp");
+    }
+}

src/main/java/de/shiewk/smoderation/paper/command/argument/OfflinePlayerArgument.java

@@ -0,0 +1,40 @@
+package de.shiewk.smoderation.paper.command.argument;
+
+import com.mojang.brigadier.arguments.ArgumentType;
+import com.mojang.brigadier.arguments.StringArgumentType;
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.mojang.brigadier.suggestion.Suggestions;
+import com.mojang.brigadier.suggestion.SuggestionsBuilder;
+import de.shiewk.smoderation.paper.util.CommandUtil;
+import io.papermc.paper.command.brigadier.argument.CustomArgumentType;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.concurrent.CompletableFuture;
+
+public final class OfflinePlayerArgument implements CustomArgumentType.Converted<OfflinePlayer, String> {
+
+    @Override
+    public OfflinePlayer convert(@NotNull String nativeType) throws CommandSyntaxException {
+        OfflinePlayer player = Bukkit.getOfflinePlayerIfCached(nativeType);
+        if (player != null){
+            return player;
+        } else {
+            CommandUtil.error("That player is not cached.");
+            throw new AssertionError(); // can't happen
+        }
+    }
+
+    @Override
+    public @NotNull ArgumentType<String> getNativeType() {
+        return StringArgumentType.word();
+    }
+
+    @Override
+    public @NotNull <S> CompletableFuture<Suggestions> listSuggestions(@NotNull CommandContext<S> context, @NotNull SuggestionsBuilder builder) {
+        return builder.buildFuture();
+    }
+
+}

src/main/resources/paper-plugin.yml

@@ -71,4 +71,7 @@ permissions:
     description: Allows the player to see vanished players
   smod.socialspy:
     default: op
-    description: Allows the player to enable SocialSpy
+    description: Allows the player to enable SocialSpy
+  smod.offlinetp:
+    default: op
+    description: Allows the player to teleport themself to offline players