Add CoreProtectLookupEvent

Author: Veyronity

src/main/java/net/coreprotect/command/LookupCommand.java

@@ -4,6 +4,7 @@
 import java.util.Locale;
 import java.util.Map;
 
+import net.coreprotect.event.CoreProtectLookupEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
@@ -55,6 +56,15 @@ public static void runCommand(CommandSender player, Command command, boolean per
             return;
         }
 
+        CoreProtectLookupEvent event = new CoreProtectLookupEvent(player, argUsers);
+        if (!event.callEvent()) {
+            Chat.sendMessage(player, Color.DARK_AQUA + "CoreProtect " + Color.WHITE + "- " + event.getCancelMessage());
+            return;
+        }
+        if (argUsers != event.getUsers()) {
+            argUsers = event.getUsers();
+        }
+
         if (args[0].toLowerCase(Locale.ROOT).equals("page") && (args.length != 2 || !args[1].equals(args[1].replaceAll("[^0-9]", "")))) {
             Chat.sendMessage(player, Color.DARK_AQUA + "CoreProtect " + Color.WHITE + "- " + Phrase.build(Phrase.MISSING_PARAMETERS, Color.WHITE, "/co page <page>"));
             return;

src/main/java/net/coreprotect/event/CoreProtectLookupEvent.java

@@ -0,0 +1,66 @@
+package net.coreprotect.event;
+
+import org.bukkit.command.CommandSender;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+
+public class CoreProtectLookupEvent extends Event implements Cancellable {
+    private static final HandlerList handlers = new HandlerList();
+    private boolean cancelled = false;
+    private final CommandSender commandSender;
+    private List<String> users;
+    private String cancelMessage = "This lookup was cancelled by another plugin.";
+
+    public CoreProtectLookupEvent(CommandSender commandSender, List<String> users) {
+        this.commandSender = commandSender;
+        this.users = users;
+    }
+
+    public CommandSender getSender() {
+        return commandSender;
+    }
+
+    public List<String> getUsers() {
+        return users;
+    }
+
+    public void setUsers(List<String> users) {
+        if (users.isEmpty()) {
+            setCancelled(true);
+            setCancelMessage("Users list was modified by another plugin. No users remaining.");
+            return;
+        }
+        this.users = users;
+    }
+
+    public void setCancelMessage(String cancelMessage) {
+        this.cancelMessage = cancelMessage;
+    }
+
+    public String getCancelMessage() {
+        return cancelMessage;
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return cancelled;
+    }
+
+    @Override
+    public void setCancelled(boolean cancel) {
+        this.cancelled = cancel;
+    }
+
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return handlers;
+    }
+
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+}