Merge branch 'community-edition' into main

bukkit/loader/src/main/java/net/momirealms/craftengine/bukkit/BukkitBootstrap.java

@@ -1,8 +1,16 @@
 package net.momirealms.craftengine.bukkit;
 
 import net.momirealms.craftengine.bukkit.plugin.BukkitCraftEngine;
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 
+import java.io.File;
+import java.util.Collection;
+import java.util.concurrent.TimeUnit;
+
 public class BukkitBootstrap extends JavaPlugin {
     private final BukkitCraftEngine plugin;
 
@@ -12,16 +20,66 @@ public class BukkitBootstrap extends JavaPlugin {
 
     @Override
     public void onLoad() {
+        if (!isOnlineMode()) {
+            return;
+        }
         this.plugin.onPluginLoad();
     }
 
     @Override
     public void onEnable() {
-        this.plugin.onPluginEnable();
+        if (!isOnlineMode()) {
+            this.plugin.logger().warn("CraftEngine Community Edition requires online mode to be enabled.");
+            Bukkit.getPluginManager().disablePlugin(this);
+        } else {
+            this.plugin.scheduler().asyncRepeating(() -> {
+                Collection<? extends Player> players = Bukkit.getOnlinePlayers();
+                if (players.size() > 20) {
+                    for (Player player : players) {
+                        player.sendMessage("Better Together! This server supports 20 players (Community Edition). Want more slots & features? Ask the admin about: » Going CraftEngine Premium Edition!");
+                    }
+                    this.plugin.logger().warn("Glad to see that your server is growing!");
+                    this.plugin.logger().warn("The Community Edition supports up to 20 players. Unlock limitless potential with CraftEngine Premium:");
+                    this.plugin.logger().warn("► Unlimited player capacity");
+                    this.plugin.logger().warn("► Priority support");
+                    this.plugin.logger().warn("► Advanced management tools");
+                }
+            }, 1, 1, TimeUnit.MINUTES);
+            this.plugin.onPluginEnable();
+            this.plugin.logger().warn("You're using the CraftEngine Community Edition");
+            this.plugin.logger().warn(" - Maximum player limit is restricted to 20");
+        }
     }
 
     @Override
     public void onDisable() {
+        if (!isOnlineMode()) {
+            return;
+        }
         this.plugin.onPluginDisable();
     }
+
+    private boolean isOnlineMode() {
+        if (Bukkit.getServer().getOnlineMode()) {
+            return true;
+        }
+        return isVelocityOnlineMode();
+    }
+
+    private boolean isVelocityOnlineMode() {
+        File paperGlobalFile = new File(this.getDataFolder().getParentFile().getParentFile(), "config" + File.separator + "paper-global.yml");
+        if (!paperGlobalFile.exists()) {
+            return false;
+        }
+        YamlConfiguration config = YamlConfiguration.loadConfiguration(paperGlobalFile);
+        ConfigurationSection proxies = config.getConfigurationSection("proxies");
+        if (proxies == null) {
+            return false;
+        }
+        boolean enableVelocity = proxies.getBoolean("velocity.enabled", false);
+        if (!enableVelocity) {
+            return false;
+        }
+        return proxies.getBoolean("velocity.online-mode", false);
+    }
 }