From 36bbd5ef97fb6bc9a610b8b671a878f7e2c11def Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Elias=20M=C3=BCller?= <elias@elias-mueller.com>
Date: Fri, 30 Aug 2024 07:28:46 +0200
Subject: [PATCH] added more infrastructure and basic functionality

---
 .idea/gradle.xml                              |  1 +
 build.gradle.kts                              |  1 +
 .../minecraft/WorldMuseum/CancelListener.java | 12 -------
 .../eu/mhsl/minecraft/WorldMuseum/Main.java   | 13 +++++++-
 .../WorldMuseum/listener/ChatListener.java    | 24 ++++++++++++++
 .../WorldMuseum/listener/PlayerListener.java  | 31 ++++++++++++++++++
 .../WorldMuseum/util/BungeeCord.java          | 27 ++++++++++++++++
 .../{ => viewableWorld}/ViewableWorld.java    | 14 +++++---
 .../viewableWorld/ViewableWorldListener.java  | 32 +++++++++++++++++++
 .../worldSelector/WorldSelectInventory.java   | 24 ++++++++++++--
 .../worldSelector/WorldSelectListener.java    | 31 ++++++++++++++++++
 src/main/resources/config.yml                 |  5 +--
 12 files changed, 194 insertions(+), 21 deletions(-)
 delete mode 100644 src/main/java/eu/mhsl/minecraft/WorldMuseum/CancelListener.java
 create mode 100644 src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/ChatListener.java
 create mode 100644 src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/PlayerListener.java
 create mode 100644 src/main/java/eu/mhsl/minecraft/WorldMuseum/util/BungeeCord.java
 rename src/main/java/eu/mhsl/minecraft/WorldMuseum/{ => viewableWorld}/ViewableWorld.java (86%)
 create mode 100644 src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorldListener.java

diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 14746e7..2a65317 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/build.gradle.kts b/build.gradle.kts
index 1d4a2ba..707ad67 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -12,6 +12,7 @@ repositories {
 
 dependencies {
     compileOnly("io.papermc.paper:paper-api:1.21.1-R0.1-SNAPSHOT")
+    compileOnly("com.google.guava:guava:33.3.0-jre")
 
     testImplementation(platform("org.junit:junit-bom:5.10.0"))
     testImplementation("org.junit.jupiter:junit-jupiter")
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/CancelListener.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/CancelListener.java
deleted file mode 100644
index a04fa9a..0000000
--- a/src/main/java/eu/mhsl/minecraft/WorldMuseum/CancelListener.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package eu.mhsl.minecraft.WorldMuseum;
-
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.event.block.BlockRedstoneEvent;
-
-public class CancelListener implements Listener {
-    @EventHandler
-    public void disableRedstone(BlockRedstoneEvent event) {
-        event.setNewCurrent(0);
-    }
-}
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/Main.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/Main.java
index e5ca76a..41113d3 100644
--- a/src/main/java/eu/mhsl/minecraft/WorldMuseum/Main.java
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/Main.java
@@ -1,5 +1,9 @@
 package eu.mhsl.minecraft.WorldMuseum;
 
+import eu.mhsl.minecraft.WorldMuseum.listener.ChatListener;
+import eu.mhsl.minecraft.WorldMuseum.listener.PlayerListener;
+import eu.mhsl.minecraft.WorldMuseum.viewableWorld.ViewableWorld;
+import eu.mhsl.minecraft.WorldMuseum.viewableWorld.ViewableWorldListener;
 import eu.mhsl.minecraft.WorldMuseum.worldSelector.WorldSelectListener;
 import org.bukkit.Bukkit;
 import org.bukkit.event.Listener;
@@ -21,9 +25,13 @@ public class Main extends JavaPlugin {
         Main.instance = this;
         this.saveDefaultConfig();
 
+        getServer().getMessenger().registerOutgoingPluginChannel(this, "BungeeCord");
+
         List<Listener> listeners = List.of(
+            new PlayerListener(),
+            new ChatListener(),
             new WorldSelectListener(),
-            new CancelListener()
+            new ViewableWorldListener()
         );
         listeners.forEach(listener -> Bukkit.getPluginManager().registerEvents(listener, this));
 
@@ -32,10 +40,13 @@ public class Main extends JavaPlugin {
 
     @Override
     public void onDisable() {
+        this.worlds.forEach(ViewableWorld::unloadWorld);
     }
 
     private void loadWorlds() {
         File worldFolder = new File(getDataFolder().getAbsolutePath() + "/worlds");
+        if(!worldFolder.setReadOnly()) throw new RuntimeException("Could not set Worlds to readonly. Be careful!");
+
         //noinspection ResultOfMethodCallIgnored
         worldFolder.mkdirs();
         Arrays.stream(Objects.requireNonNull(worldFolder.listFiles())).forEach(file -> this.worlds.add(new ViewableWorld(file)));
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/ChatListener.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/ChatListener.java
new file mode 100644
index 0000000..83a6e9b
--- /dev/null
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/ChatListener.java
@@ -0,0 +1,24 @@
+package eu.mhsl.minecraft.WorldMuseum.listener;
+
+import io.papermc.paper.event.player.AsyncChatEvent;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+public class ChatListener implements Listener {
+    @EventHandler
+    public void onJoin(PlayerJoinEvent event) {
+        event.joinMessage(null);
+    }
+
+    @EventHandler
+    public void onLeave(PlayerQuitEvent event) {
+        event.quitMessage(null);
+    }
+
+    @EventHandler
+    public void onChat(AsyncChatEvent event) {
+        event.setCancelled(true);
+    }
+}
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/PlayerListener.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/PlayerListener.java
new file mode 100644
index 0000000..a1d04ac
--- /dev/null
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/listener/PlayerListener.java
@@ -0,0 +1,31 @@
+package eu.mhsl.minecraft.WorldMuseum.listener;
+
+import eu.mhsl.minecraft.WorldMuseum.Main;
+import net.kyori.adventure.util.Ticks;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockBreakEvent;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+
+public class PlayerListener implements Listener {
+    @EventHandler
+    public void onJoin(PlayerJoinEvent event) {
+        event.getPlayer().setGameMode(GameMode.SURVIVAL);
+        event.getPlayer().addPotionEffect(
+            new PotionEffect(PotionEffectType.HASTE, PotionEffect.INFINITE_DURATION, 15, false, false, false)
+        );
+    }
+
+    @EventHandler
+    public void onBreak(BlockBreakEvent event) {
+        Bukkit.getScheduler().scheduleSyncDelayedTask(
+            Main.instance(),
+            () -> event.getBlock().getWorld().getBlockAt(event.getBlock().getLocation()).setType(event.getBlock().getType()),
+            Ticks.TICKS_PER_SECOND * 5
+        );
+    }
+}
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/util/BungeeCord.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/util/BungeeCord.java
new file mode 100644
index 0000000..6d828c0
--- /dev/null
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/util/BungeeCord.java
@@ -0,0 +1,27 @@
+package eu.mhsl.minecraft.WorldMuseum.util;
+
+import com.google.common.io.ByteArrayDataOutput;
+import com.google.common.io.ByteStreams;
+import eu.mhsl.minecraft.WorldMuseum.Main;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.util.Ticks;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+import java.util.logging.Level;
+
+public class BungeeCord {
+    public static void connect(Player player, String server) {
+        Main.instance().getLogger().log(Level.INFO, String.format("Bungeecord: Sending %s to %s", player.getName(), server));
+        ByteArrayDataOutput output = ByteStreams.newDataOutput();
+        output.writeUTF("Connect");
+        output.writeUTF(server);
+        player.sendPluginMessage(Main.instance(), "BungeeCord", output.toByteArray());
+
+        Bukkit.getScheduler().scheduleSyncDelayedTask(
+            Main.instance(),
+            () -> player.kick(Component.text("connect timeout")),
+            Ticks.TICKS_PER_SECOND * 10
+        );
+    }
+}
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/ViewableWorld.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorld.java
similarity index 86%
rename from src/main/java/eu/mhsl/minecraft/WorldMuseum/ViewableWorld.java
rename to src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorld.java
index 5969523..3815bc3 100644
--- a/src/main/java/eu/mhsl/minecraft/WorldMuseum/ViewableWorld.java
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorld.java
@@ -1,10 +1,8 @@
-package eu.mhsl.minecraft.WorldMuseum;
+package eu.mhsl.minecraft.WorldMuseum.viewableWorld;
 
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.util.TriState;
-import org.bukkit.Material;
-import org.bukkit.World;
-import org.bukkit.WorldCreator;
+import org.bukkit.*;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.entity.Player;
@@ -13,6 +11,7 @@ import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 
 import java.io.File;
+import java.util.Objects;
 
 public class ViewableWorld {
     private final File worldLocation;
@@ -40,9 +39,16 @@ public class ViewableWorld {
         worldCreator.keepSpawnLoaded(TriState.FALSE);
         worldCreator.generator(new ChunkGenerator() {});
         this.world = worldCreator.createWorld();
+        Objects.requireNonNull(this.world);
+        this.world.setAutoSave(false);
+    }
+
+    public void unloadWorld() {
+        Bukkit.unloadWorld(this.world, false);
     }
 
     public void addViewer(Player player) {
+        player.setAllowFlight(true);
         player.teleport(world.getSpawnLocation());
     }
 
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorldListener.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorldListener.java
new file mode 100644
index 0000000..2cb83d1
--- /dev/null
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/viewableWorld/ViewableWorldListener.java
@@ -0,0 +1,32 @@
+package eu.mhsl.minecraft.WorldMuseum.viewableWorld;
+
+import io.papermc.paper.event.entity.EntityMoveEvent;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockFromToEvent;
+import org.bukkit.event.block.BlockGrowEvent;
+import org.bukkit.event.block.BlockRedstoneEvent;
+import org.bukkit.event.entity.EntitySpawnEvent;
+
+public class ViewableWorldListener implements Listener {
+    @EventHandler
+    public void disableRedstone(BlockRedstoneEvent event) {
+        event.setNewCurrent(0);
+    }
+    @EventHandler
+    public void disableEntitySpawn(EntitySpawnEvent event) {
+        event.setCancelled(true);
+    }
+    @EventHandler
+    public void preventEntityMove(EntityMoveEvent event) {
+        event.setCancelled(true);
+    }
+    @EventHandler
+    public void preventBlockFromTo(BlockFromToEvent event) {
+        event.setCancelled(true);
+    }
+    @EventHandler
+    public void preventGrowth(BlockGrowEvent event) {
+        event.setCancelled(true);
+    }
+}
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectInventory.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectInventory.java
index f21344e..d391a37 100644
--- a/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectInventory.java
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectInventory.java
@@ -1,21 +1,41 @@
 package eu.mhsl.minecraft.WorldMuseum.worldSelector;
 
 import eu.mhsl.minecraft.WorldMuseum.Main;
-import eu.mhsl.minecraft.WorldMuseum.ViewableWorld;
+import eu.mhsl.minecraft.WorldMuseum.viewableWorld.ViewableWorld;
+import net.kyori.adventure.text.Component;
 import org.bukkit.Bukkit;
+import org.bukkit.Material;
 import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
 
 import java.util.List;
 
 public class WorldSelectInventory {
+    public static ItemStack exitItem() {
+        ItemStack stack = ItemStack.of(Material.OAK_DOOR);
+        ItemMeta meta = stack.getItemMeta();
+        meta.displayName(Component.text("Zurück zum Server"));
+        meta.setEnchantmentGlintOverride(true);
+        stack.setItemMeta(meta);
+        return stack;
+    }
+
     public static Inventory generateInventory() {
         List<ViewableWorld> worlds = Main.instance().getWorlds();
-        Inventory inventory = Bukkit.createInventory(null, Math.max(worlds.size() / 9, 1) * 9);
+
+        int itemCount = worlds.size() + 1;
+        int inventoryRows = Math.max(itemCount / 9, 1);
+        int inventorySize = inventoryRows * 9;
+        Inventory inventory = Bukkit.createInventory(null, inventorySize, Component.text("Weltenmuseum"));
 
         worlds.stream()
             .filter(ViewableWorld::isEnabled)
             .forEach(viewableWorld -> inventory.addItem(viewableWorld.getItem()));
 
+        boolean canExit = Main.instance().getConfig().getBoolean("bungee.enabled");
+        if(canExit) inventory.setItem(inventorySize - 1, exitItem());
+
         return inventory;
     }
 }
diff --git a/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectListener.java b/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectListener.java
index 6a1bbda..8007505 100644
--- a/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectListener.java
+++ b/src/main/java/eu/mhsl/minecraft/WorldMuseum/worldSelector/WorldSelectListener.java
@@ -1,18 +1,49 @@
 package eu.mhsl.minecraft.WorldMuseum.worldSelector;
 
 import eu.mhsl.minecraft.WorldMuseum.Main;
+import eu.mhsl.minecraft.WorldMuseum.util.BungeeCord;
 import org.bukkit.Bukkit;
+import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
 import org.bukkit.event.player.PlayerJoinEvent;
 
+import java.util.Objects;
+
 public class WorldSelectListener implements Listener {
+    private void sendPlayerToExit(Player player) {
+        BungeeCord.connect(player, Main.instance().getConfig().getString("bungee.returnToServer"));
+    }
+
+    @EventHandler
+    public void onExit(InventoryCloseEvent event) {
+        if(event.getReason().equals(InventoryCloseEvent.Reason.TELEPORT)) return;
+
+        Bukkit.getScheduler().scheduleSyncDelayedTask(
+            Main.instance(),
+            () -> event.getPlayer().openInventory(WorldSelectInventory.generateInventory()),
+            1
+        );
+
+        ConfigurationSection bungeeSettings = Main.instance().getConfig().getConfigurationSection("bungee");
+        Objects.requireNonNull(bungeeSettings);
+
+        if(!event.getReason().equals(InventoryCloseEvent.Reason.PLAYER)) return;
+        if(!(bungeeSettings.getBoolean("enabled", false))) return;
+        if(!bungeeSettings.getBoolean("returnOnSelectExit")) return;
+        sendPlayerToExit((Player) event.getPlayer());
+    }
+
     @EventHandler
     public void onInteract(InventoryClickEvent event) {
         event.setCancelled(true);
 
+        if(Objects.equals(event.getCurrentItem(), WorldSelectInventory.exitItem()))
+            sendPlayerToExit((Player) event.getWhoClicked());
+
         Main.instance().getWorlds().stream()
             .filter(viewableWorld -> viewableWorld.getItem().equals(event.getCurrentItem()))
             .findFirst()
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index 59f3224..5cc548f 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -1,3 +1,4 @@
 bungee:
-  enabled: true
-  returnToServer: 'server'
\ No newline at end of file
+  enabled: false
+  returnToServer: 'server'
+  returnOnSelectExit: true
\ No newline at end of file