From 3bc58b7f9c535563f6f99e4f3334332a1aae658f Mon Sep 17 00:00:00 2001
From: Len <40720638+destro174@users.noreply.github.com>
Date: Wed, 14 Aug 2024 20:42:22 +0200
Subject: [PATCH] Use reflection to load event listeners

---
 plugin/build.gradle.kts                        |  1 +
 .../com/alttd/essentia/EssentiaPlugin.java     | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/plugin/build.gradle.kts b/plugin/build.gradle.kts
index 860de2d..0423be9 100644
--- a/plugin/build.gradle.kts
+++ b/plugin/build.gradle.kts
@@ -6,6 +6,7 @@ plugins {
 dependencies {
     implementation(project(":api"))
     compileOnly("com.alttd:Galaxy-API:1.21.1-R0.1-SNAPSHOT")
+    api("org.reflections:reflections:0.10.2")
 
     compileOnly("org.projectlombok:lombok:1.18.34")
     annotationProcessor("org.projectlombok:lombok:1.18.34")
diff --git a/plugin/src/main/java/com/alttd/essentia/EssentiaPlugin.java b/plugin/src/main/java/com/alttd/essentia/EssentiaPlugin.java
index 49f025a..75f5a9c 100644
--- a/plugin/src/main/java/com/alttd/essentia/EssentiaPlugin.java
+++ b/plugin/src/main/java/com/alttd/essentia/EssentiaPlugin.java
@@ -10,8 +10,14 @@ import com.alttd.essentia.storage.StorageType;
 import com.alttd.essentia.user.EssentiaUserManager;
 import com.alttd.essentia.api.user.UserManager;
 import lombok.Getter;
+import org.bukkit.event.Listener;
+import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.reflections.Reflections;
+import org.reflections.scanners.Scanners;
+
+import java.util.Set;
 
 public class EssentiaPlugin extends JavaPlugin implements EssentiaAPI {
 
@@ -74,7 +80,17 @@ public class EssentiaPlugin extends JavaPlugin implements EssentiaAPI {
 
     void loadEventListeners() {
         final PluginManager pluginManager = getServer().getPluginManager();
-        pluginManager.registerEvents(new PlayerListener(this), this);
+        Reflections reflections = new Reflections("com.alttd.essentia.listeners");
+        Set<Class<?>> subTypes = reflections.get(Scanners.SubTypes.of(Listener.class).asClass());
+
+        subTypes.forEach(clazz -> {
+            try {
+                Listener listener = (Listener) clazz.getDeclaredConstructor().newInstance();
+                pluginManager.registerEvents(listener, this);
+            } catch (Exception e) {
+                EssentiaPlugin.instance().getLogger().severe("Failed to register event listener " + clazz.getSimpleName());
+            }
+        });
     }
 
     void loadManagers() {