Please Help || ClickEvent

Hi there,
i'd like to code a plugin which performs a command when a make a right-click with a Cake in his Inventar...

Code:java

import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;
 
public class CakeClicker extends JavaPlugin implements Listener{
 
public void onEnable() {
 
}
 
 
@EventHandler
public void onPlayerInteract(PlayerInteractEvent e) {
 
ItemStack b = e.getItem();
Player p = e.getPlayer();
if (e.getAction() == Action.LEFT_CLICK_AIR || e.getAction() == Action.LEFT_CLICK_BLOCK) {
if( b.getType() == Material.CAKE) {
p.performCommand("InvTP");
}
}
 
 
}
 
}

 

Is it when he has his inventory open or when he has the item in his hand.
If it's the inventory, you use the InventoryClickEvent. Else you need to check if the item b isn't equal to null. And you check when you left click(break a block).