From 20af36a4a2f32b8cee75f15f3c1a4faaaa6b8c45 Mon Sep 17 00:00:00 2001
From: yoyosource <yoyosource@nidido.de>
Date: Sat, 16 Dec 2023 14:42:01 +0100
Subject: [PATCH] Add SpectatorListener

---
 .../features/world/SpectatorListener.java     | 110 ++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 BauSystem_Main/src/de/steamwar/bausystem/features/world/SpectatorListener.java

diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/world/SpectatorListener.java b/BauSystem_Main/src/de/steamwar/bausystem/features/world/SpectatorListener.java
new file mode 100644
index 00000000..ffc45f90
--- /dev/null
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/world/SpectatorListener.java
@@ -0,0 +1,110 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2023  SteamWar.de-Serverteam
+ *
+ *   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 <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.features.world;
+
+import de.steamwar.bausystem.Permission;
+import de.steamwar.linkage.Linked;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockBreakEvent;
+import org.bukkit.event.block.BlockCanBuildEvent;
+import org.bukkit.event.block.BlockMultiPlaceEvent;
+import org.bukkit.event.block.BlockPlaceEvent;
+import org.bukkit.event.player.*;
+
+@Linked
+public class SpectatorListener implements Listener {
+
+    private boolean anySupervisorOnline(Player player) {
+        return Bukkit.getOnlinePlayers().stream().filter(p -> p != player).anyMatch(Permission.SUPERVISOR::hasPermission);
+    }
+
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        if (!anySupervisorOnline(null)) {
+            event.getPlayer().kickPlayer("");
+        }
+    }
+
+    @EventHandler
+    public void onPlayerQuit(PlayerQuitEvent event) {
+        if (!anySupervisorOnline(event.getPlayer())) {
+            Bukkit.getOnlinePlayers().forEach(player -> {
+                player.kickPlayer("");
+            });
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onPlayerCommandPreprocess(PlayerCommandPreprocessEvent event) {
+        if (event.getMessage().startsWith("/schem save") || event.getMessage().startsWith("//schem save") || event.getMessage().startsWith("/schematic save") || event.getMessage().startsWith("//schematic save")) {
+            if (!Permission.SUPERVISOR.hasPermission(event.getPlayer())) {
+                event.setCancelled(true);
+                event.setMessage("/");
+            }
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onBlockMultiPlace(BlockMultiPlaceEvent event) {
+        if (Permission.SPECTATOR.hasPermission(event.getPlayer())) {
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onBlockCanBuild(BlockCanBuildEvent event) {
+        if (event.getPlayer() == null) return;
+        if (Permission.SPECTATOR.hasPermission(event.getPlayer())) {
+            event.setBuildable(false);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onBlockPlace(BlockPlaceEvent event) {
+        if (Permission.SPECTATOR.hasPermission(event.getPlayer())) {
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onBlockBreak(BlockBreakEvent event) {
+        if (Permission.SPECTATOR.hasPermission(event.getPlayer())) {
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onPlayerInteract(PlayerInteractEvent event) {
+        if (Permission.SPECTATOR.hasPermission(event.getPlayer())) {
+            event.setCancelled(true);
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
+    public void onPlayerBucket(PlayerBucketEvent event) {
+        if (Permission.SPECTATOR.hasPermission(event.getPlayer())) {
+            event.setCancelled(true);
+        }
+    }
+}