Purpur/patches/server/0002-Purpur-config-files.patch

From 2e9eb1dadfd676fce0e6e5a18cb5e80722cdf531 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 9 May 2019 18:09:43 -0500
Subject: [PATCH] Purpur config files

---
 .../net/minecraft/server/DedicatedServer.java |   9 ++
 src/main/java/net/minecraft/server/World.java |   3 +
 .../java/net/pl3x/purpur/PurpurCommand.java   |  59 ++++++++
 .../java/net/pl3x/purpur/PurpurConfig.java    | 127 ++++++++++++++++++
 .../net/pl3x/purpur/PurpurWorldConfig.java    |  63 +++++++++
 .../org/bukkit/craftbukkit/CraftServer.java   |   2 +
 .../java/org/bukkit/craftbukkit/Main.java     |   8 ++
 7 files changed, 271 insertions(+)
 create mode 100644 src/main/java/net/pl3x/purpur/PurpurCommand.java
 create mode 100644 src/main/java/net/pl3x/purpur/PurpurConfig.java
 create mode 100644 src/main/java/net/pl3x/purpur/PurpurWorldConfig.java

diff --git a/src/main/java/net/minecraft/server/DedicatedServer.java b/src/main/java/net/minecraft/server/DedicatedServer.java
index c1473330f..f438323be 100644
--- a/src/main/java/net/minecraft/server/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/DedicatedServer.java
@@ -174,6 +174,15 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
             return false;
         }
         com.destroystokyo.paper.PaperConfig.registerCommands();
+        // Purpur start
+        try {
+            net.pl3x.purpur.PurpurConfig.init((File) options.valueOf("purpur-settings"));
+        } catch (Exception e) {
+            DedicatedServer.LOGGER.error("Unable to load server configuration", e);
+            return false;
+        }
+        net.pl3x.purpur.PurpurConfig.registerCommands();
+        // Purpur end
         com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
         // Paper end
 
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index a7a35d6a6..c8f198fdf 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -94,6 +94,8 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
 
     public final com.destroystokyo.paper.PaperWorldConfig paperConfig; // Paper
 
+    public final net.pl3x.purpur.PurpurWorldConfig purpurConfig; // Purpur
+
     public final co.aikar.timings.WorldTimingsHandler timings; // Paper
     public static BlockPosition lastPhysicsProblem; // Spigot
     private org.spigotmc.TickLimiter entityLimiter;
@@ -134,6 +136,7 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
     protected World(WorldData worlddata, DimensionManager dimensionmanager, BiFunction<World, WorldProvider, IChunkProvider> bifunction, GameProfilerFiller gameprofilerfiller, boolean flag, org.bukkit.generator.ChunkGenerator gen, org.bukkit.World.Environment env) {
         this.spigotConfig = new org.spigotmc.SpigotWorldConfig( worlddata.getName() ); // Spigot
         this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig(worlddata.getName(), this.spigotConfig); // Paper
+        this.purpurConfig = new net.pl3x.purpur.PurpurWorldConfig(worlddata.getName(), this.paperConfig, this.spigotConfig); // Purpur
         this.generator = gen;
         this.world = new CraftWorld((WorldServer) this, gen, env);
         this.ticksPerAnimalSpawns = this.getServer().getTicksPerAnimalSpawns(); // CraftBukkit
diff --git a/src/main/java/net/pl3x/purpur/PurpurCommand.java b/src/main/java/net/pl3x/purpur/PurpurCommand.java
new file mode 100644
index 000000000..293ed7da5
--- /dev/null
+++ b/src/main/java/net/pl3x/purpur/PurpurCommand.java
@@ -0,0 +1,59 @@
+package net.pl3x.purpur;
+
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.WorldServer;
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class PurpurCommand extends Command {
+    public PurpurCommand(String name) {
+        super(name);
+        this.description = "Purpur related commands";
+        this.usageMessage = "/purpur [reload | version]";
+        this.setPermission("bukkit.command.purpur");
+    }
+
+    @Override
+    public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
+        if (args.length == 1) {
+            return Arrays.asList("reload", "version").stream()
+                    .filter(arg -> arg.startsWith(args[0].toLowerCase()))
+                    .collect(Collectors.toList());
+        }
+        return Collections.emptyList();
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
+        if (!testPermission(sender)) return true;
+
+        if (args.length != 1) {
+            sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
+            return false;
+        }
+
+        if (args[0].equals("reload")) {
+            Command.broadcastCommandMessage(sender, ChatColor.RED + "Please note that this command is not supported and may cause issues.");
+            Command.broadcastCommandMessage(sender, ChatColor.RED + "If you encounter any issues please use the /stop command to restart your server.");
+
+            MinecraftServer console = MinecraftServer.getServer();
+            net.pl3x.purpur.PurpurConfig.init((File) console.options.valueOf("purpur-settings"));
+            for (WorldServer world : console.getWorlds()) {
+                world.purpurConfig.init();
+            }
+            console.server.reloadCount++;
+
+            Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Purpur config reload complete.");
+        }
+
+        return true;
+    }
+}
diff --git a/src/main/java/net/pl3x/purpur/PurpurConfig.java b/src/main/java/net/pl3x/purpur/PurpurConfig.java
new file mode 100644
index 000000000..2f87a929c
--- /dev/null
+++ b/src/main/java/net/pl3x/purpur/PurpurConfig.java
@@ -0,0 +1,127 @@
+package net.pl3x.purpur;
+
+import com.google.common.base.Throwables;
+import net.minecraft.server.MinecraftServer;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.configuration.InvalidConfigurationException;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+
+public class PurpurConfig {
+    private static final int CONFIG_VERSION = 1;
+    private static final String HEADER = "This is the main configuration file for Purpur.\n"
+            + "As you can see, there's tons to configure. Some options may impact gameplay, so use\n"
+            + "with caution, and make sure you know what each option does before configuring.\n"
+            + "\n"
+            + "If you need help with the configuration or have any questions related to Purpur,\n"
+            + "join us in our Discord guild.\n"
+            + "\n"
+            + "Website: https://pl3x.net \n"
+            + "Docs: https://purpur.readthedocs.org/ \n";
+    private static File CONFIG_FILE;
+    static YamlConfiguration config;
+    static Map<String, Command> commands;
+    private static int version;
+    private static boolean verbose;
+
+    public static void init(File configFile) {
+        CONFIG_FILE = configFile;
+        config = new YamlConfiguration();
+        try {
+            config.load(CONFIG_FILE);
+        } catch (IOException ignore) {
+        } catch (InvalidConfigurationException ex) {
+            Bukkit.getLogger().log(Level.SEVERE, "Could not load purpur.yml, please correct your syntax errors", ex);
+            throw Throwables.propagate(ex);
+        }
+        config.options().header(HEADER);
+        config.options().copyDefaults(true);
+        verbose = getBoolean("verbose", false);
+
+        commands = new HashMap<>();
+        commands.put("purpur", new PurpurCommand("purpur"));
+
+        version = getInt("config-version", CONFIG_VERSION);
+        set("config-version", version);
+
+        readConfig(PurpurConfig.class, null);
+    }
+
+    protected static void log(String s) {
+        log(Level.INFO, s);
+    }
+
+    protected static void log(Level level, String s) {
+        if (verbose) {
+            Bukkit.getLogger().log(level, s);
+        }
+    }
+
+    public static void registerCommands() {
+        for (Map.Entry<String, Command> entry : commands.entrySet()) {
+            MinecraftServer.getServer().server.getCommandMap().register(entry.getKey(), "Purpur", entry.getValue());
+        }
+    }
+
+    static void readConfig(Class<?> clazz, Object instance) {
+        for (Method method : clazz.getDeclaredMethods()) {
+            if (Modifier.isPrivate(method.getModifiers())) {
+                if (method.getParameterTypes().length == 0 && method.getReturnType() == Void.TYPE) {
+                    try {
+                        method.setAccessible(true);
+                        method.invoke(instance);
+                    } catch (InvocationTargetException ex) {
+                        throw Throwables.propagate(ex.getCause());
+                    } catch (Exception ex) {
+                        Bukkit.getLogger().log(Level.SEVERE, "Error invoking " + method, ex);
+                    }
+                }
+            }
+        }
+
+        try {
+            config.save(CONFIG_FILE);
+        } catch (IOException ex) {
+            Bukkit.getLogger().log(Level.SEVERE, "Could not save " + CONFIG_FILE, ex);
+        }
+    }
+
+    private static void set(String path, Object val) {
+        config.set(path, val);
+    }
+
+    private static boolean getBoolean(String path, boolean def) {
+        config.addDefault(path, def);
+        return config.getBoolean(path, config.getBoolean(path));
+    }
+
+    private static double getDouble(String path, double def) {
+        config.addDefault(path, def);
+        return config.getDouble(path, config.getDouble(path));
+    }
+
+    private static int getInt(String path, int def) {
+        config.addDefault(path, def);
+        return config.getInt(path, config.getInt(path));
+    }
+
+    private static <T> List getList(String path, T def) {
+        config.addDefault(path, def);
+        return config.getList(path, config.getList(path));
+    }
+
+    private static String getString(String path, String def) {
+        config.addDefault(path, def);
+        return config.getString(path, config.getString(path));
+    }
+}
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
new file mode 100644
index 000000000..30f11fe26
--- /dev/null
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -0,0 +1,63 @@
+package net.pl3x.purpur;
+
+import com.destroystokyo.paper.PaperWorldConfig;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.spigotmc.SpigotWorldConfig;
+
+import java.util.List;
+
+import static net.pl3x.purpur.PurpurConfig.log;
+
+public class PurpurWorldConfig {
+
+    private final String worldName;
+    private final PaperWorldConfig paperConfig;
+    private final SpigotWorldConfig spigotConfig;
+    private final YamlConfiguration config;
+    private boolean verbose;
+
+    public PurpurWorldConfig(String worldName, PaperWorldConfig paperConfig, SpigotWorldConfig spigotConfig) {
+        this.worldName = worldName;
+        this.paperConfig = paperConfig;
+        this.spigotConfig = spigotConfig;
+        this.config = PurpurConfig.config;
+        init();
+    }
+
+    public void init() {
+        log("-------- World Settings For [" + worldName + "] --------");
+        PurpurConfig.readConfig(PurpurWorldConfig.class, this);
+    }
+
+    private void set(String path, Object val) {
+        config.set("world-settings.default." + path, val);
+        if (config.get("world-settings." + worldName + "." + path) != null) {
+            config.set("world-settings." + worldName + "." + path, val);
+        }
+    }
+
+    private boolean getBoolean(String path, boolean def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getBoolean("world-settings." + worldName + "." + path, config.getBoolean("world-settings.default." + path));
+    }
+
+    private double getDouble(String path, double def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getDouble("world-settings." + worldName + "." + path, config.getDouble("world-settings.default." + path));
+    }
+
+    private int getInt(String path, int def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getInt("world-settings." + worldName + "." + path, config.getInt("world-settings.default." + path));
+    }
+
+    private <T> List getList(String path, T def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getList("world-settings." + worldName + "." + path, config.getList("world-settings.default." + path));
+    }
+
+    private String getString(String path, String def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getString("world-settings." + worldName + "." + path, config.getString("world-settings.default." + path));
+    }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 6dfdc9813..6a9786eb9 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -793,6 +793,7 @@ public final class CraftServer implements Server {
 
         org.spigotmc.SpigotConfig.init((File) console.options.valueOf("spigot-settings")); // Spigot
         com.destroystokyo.paper.PaperConfig.init((File) console.options.valueOf("paper-settings")); // Paper
+        net.pl3x.purpur.PurpurConfig.init((File) console.options.valueOf("purpur-settings")); // Purpur
         for (WorldServer world : console.getWorlds()) {
             world.worldData.setDifficulty(config.difficulty);
             world.setSpawnFlags(config.spawnMonsters, config.spawnAnimals);
@@ -809,6 +810,7 @@ public final class CraftServer implements Server {
             }
             world.spigotConfig.init(); // Spigot
             world.paperConfig.init(); // Paper
+            world.purpurConfig.init(); // Purpur
         }
 
         Plugin[] pluginClone = pluginManager.getPlugins().clone(); // Paper
diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
index 405ea5c46..2d60e7588 100644
--- a/src/main/java/org/bukkit/craftbukkit/Main.java
+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
@@ -137,6 +137,14 @@ public class Main {
                         .describedAs("Yml file");
                 // Paper end
 
+                // Purpur Start
+                acceptsAll(asList("purpur", "purpur-settings"), "File for purpur settings")
+                        .withRequiredArg()
+                        .ofType(File.class)
+                        .defaultsTo(new File("purpur.yml"))
+                        .describedAs("Yml file");
+                // Purpur end
+
                 // Paper start
                 acceptsAll(asList("server-name"), "Name of the server")
                         .withRequiredArg()
-- 
2.20.1