From 6376ef7dd5e8e86089811db476f26145c51dda26 Mon Sep 17 00:00:00 2001
From: Chaoscaot <max.spaeth01@gmail.com>
Date: Mon, 1 Feb 2021 13:42:19 +0100
Subject: [PATCH] Add Shift + Right Click Edit Sign

---
 BauSystem_Main/pom.xml                        |  7 ++
 .../bausystem/world/RegionListener.java       | 64 +++++++++++++++++++
 BauSystem_Main/src/plugin.yml                 |  2 +-
 3 files changed, 72 insertions(+), 1 deletion(-)

diff --git a/BauSystem_Main/pom.xml b/BauSystem_Main/pom.xml
index 3aa54e7..cb63fc7 100644
--- a/BauSystem_Main/pom.xml
+++ b/BauSystem_Main/pom.xml
@@ -79,5 +79,12 @@
             <scope>system</scope>
             <systemPath>${main.basedir}/lib/WorldEdit-1.15.jar</systemPath>
         </dependency>
+        <dependency>
+            <groupId>steamwar</groupId>
+            <artifactId>ProtocolLib</artifactId>
+            <version>4.5.0</version>
+            <scope>system</scope>
+            <systemPath>${main.basedir}/lib/ProtocolLib.jar</systemPath>
+        </dependency>
     </dependencies>
 </project>
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/world/RegionListener.java b/BauSystem_Main/src/de/steamwar/bausystem/world/RegionListener.java
index 0719a4f..a7641e7 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/world/RegionListener.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/world/RegionListener.java
@@ -20,18 +20,33 @@
 package de.steamwar.bausystem.world;
 
 
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.wrappers.BlockPosition;
 import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
 import de.steamwar.core.Core;
+import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
+import com.comphenix.protocol.ProtocolLibrary;
+import org.bukkit.block.Block;
+import org.bukkit.block.Sign;
 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.Action;
 import org.bukkit.event.block.BlockBreakEvent;
 import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.block.SignChangeEvent;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
+import org.bukkit.event.player.PlayerInteractEvent;
+
+import java.util.logging.Level;
+
+import java.lang.reflect.InvocationTargetException;
 
 public class RegionListener implements Listener {
 
@@ -98,4 +113,53 @@ public class RegionListener implements Listener {
             event.setLine(i, line);
         }
     }
+
+    @EventHandler
+    public void editSign(PlayerInteractEvent event) {
+        if(event.getAction() != Action.RIGHT_CLICK_BLOCK ||
+                !event.getClickedBlock().getType().name().contains("_SIGN") ||
+                !event.getPlayer().isSneaking())
+            return;
+        Player player = event.getPlayer();
+        Sign sign = (Sign) event.getClickedBlock().getState();
+        String[] lines = sign.getLines();
+        for (int i = 0; i < lines.length; i++) {
+            sign.setLine(i, lines[i].replace('§', '&'));
+        }
+        sign.update();
+        PacketContainer signOpen = ProtocolLibrary.getProtocolManager().createPacket(PacketType.Play.Server.OPEN_SIGN_EDITOR);
+        signOpen.getBlockPositionModifier().write(0, new BlockPosition(event.getClickedBlock().getLocation().toVector()));
+        try {
+            ProtocolLibrary.getProtocolManager().sendServerPacket(player, signOpen);
+        } catch (InvocationTargetException e) {
+            Bukkit.getLogger().log(Level.SEVERE, "Invocation target exception", e);
+        }
+
+        ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(BauSystem.getPlugin(), PacketType.Play.Client.UPDATE_SIGN) {
+            @Override
+            public void onPacketReceiving(PacketEvent event) {
+                if(!event.getPlayer().equals(player))
+                    return;
+                event.setCancelled(true);
+                Bukkit.getScheduler().runTask(BauSystem.getPlugin(), () -> {
+                    PacketContainer packetContainer = event.getPacket();
+                    BlockPosition position = packetContainer.getBlockPositionModifier().read(0);
+                    String[] lines = packetContainer.getStringArrays().read(0);
+
+                    Block signLoc = position.toLocation(player.getWorld()).getBlock();
+                    if(!signLoc.getType().name().contains("_SIGN"))
+                        return;
+
+                    Sign sign = ((Sign) signLoc.getState());
+                    sign.setEditable(true);
+                    for (int i = 0; i < lines.length; i++) {
+                        sign.setLine(i, ChatColor.translateAlternateColorCodes('&', lines[i]));
+                    }
+                    sign.update();
+
+                    ProtocolLibrary.getProtocolManager().removePacketListener(this);
+                });
+            }
+        });
+    }
 }
diff --git a/BauSystem_Main/src/plugin.yml b/BauSystem_Main/src/plugin.yml
index bc85fb9..5460f05 100644
--- a/BauSystem_Main/src/plugin.yml
+++ b/BauSystem_Main/src/plugin.yml
@@ -1,7 +1,7 @@
 name: BauSystem
 author: Lixfel
 version: "1.0"
-depend: [WorldEdit, SpigotCore]
+depend: [WorldEdit, SpigotCore, ProtocolLib]
 load: POSTWORLD
 main: de.steamwar.bausystem.BauSystem
 api-version: "1.13"