Add events

common/src/main/java/me/lucko/luckperms/runnables/UpdateTask.java

@@ -24,13 +24,22 @@ package me.lucko.luckperms.runnables;
 
 import lombok.AllArgsConstructor;
 import me.lucko.luckperms.LuckPermsPlugin;
+import me.lucko.luckperms.api.event.events.PostSyncEvent;
+import me.lucko.luckperms.api.event.events.PreSyncEvent;
 
 @AllArgsConstructor
 public class UpdateTask implements Runnable {
     private final LuckPermsPlugin plugin;
 
+    /**
+     * Called ASYNC
+     */
     @Override
     public void run() {
+        PreSyncEvent event = new PreSyncEvent();
+        plugin.getApiProvider().fireEvent(event);
+        if (event.isCancelled()) return;
+
         // Reload all groups
         plugin.getDatastore().loadAllGroups();
         String defaultGroup = plugin.getConfiguration().getDefaultGroupName();
@@ -43,5 +52,7 @@ public class UpdateTask implements Runnable {
 
         // Refresh all online users.
         plugin.getUserManager().updateAllUsers();
+
+        plugin.getApiProvider().fireEvent(new PostSyncEvent());;
     }
 }