feat: add /debug command which should only be executable by server …

…operators

include/example_plugin.h

@@ -1,6 +1,7 @@
 // Copyright (c) 2024, The Endstone Project. (https://endstone.dev) All Rights Reserved.
 
 #include "endstone/plugin/plugin.h"
+#include "endstone/util/color_format.h"
 #include "fibonacci_command.h"
 
 class ExamplePlugin : public endstone::Plugin {
@@ -16,25 +17,23 @@ class ExamplePlugin : public endstone::Plugin {
     {
         getLogger().info("onEnable is called");
 
-        auto *root = registerPermission(                                        // root permission
-            "cpp_example.command",                                              // name
-            "Allow users to use all commands provided by this example plugin"); // description
+        // Register permissions
+        auto *root = registerPermission("cpp_example.command",
+                                        "Allow users to use all commands provided by this example plugin");
+        registerPermission(root, "cpp_example.command.debug", "Allow users to use the debug command",
+                           endstone::PermissionDefault::Operator);
+        auto *fib = registerPermission(root, "cpp_example.command.fibonacci",
+                                       "Allow users to use the fibonacci command", endstone::PermissionDefault::True);
+        registerPermission(fib, "cpp_example.command.fibonacci.large_n",
+                           "Allow users to use the fibonacci command with n >= 1000",
+                           endstone::PermissionDefault::Operator);
 
-        auto *fibonacci = registerPermission(root,                                       // parent
-                                             "cpp_example.command.fibonacci",            // name
-                                             "Allow users to use the fibonacci command", // description
-                                             endstone::PermissionDefault::True);         // default
-
-        registerPermission(fibonacci,                                                 // parent
-                           "cpp_example.command.fibonacci.large_n",                   // name
-                           "Allow users to use the fibonacci command with n >= 1000", // description
-                           endstone::PermissionDefault::Operator);                    // default
-
-        registerCommand("fibonacci",                                                                // name
-                        "A simple command that writes the Fibonacci series up to n.",               // description
-                        {"/fibonacci <n: int>"},                                                    // usages
-                        {"fib"},                                                                    // aliases
-                        {"cpp_example.command.fibonacci", "cpp_example.command.fibonacci.large_n"}) // permissions
+        // Register commands
+        registerCommand("debug", "Print debug information of this plugin.", {"/debug"}, {},
+                        {"cpp_example.command.debug"});
+        registerCommand("fibonacci", "A simple command that writes the Fibonacci series up to n.",
+                        {"/fibonacci <n: int>"}, {"fib"},
+                        {"cpp_example.command.fibonacci", "cpp_example.command.fibonacci.large_n"})
             ->setExecutor(std::make_unique<FibonacciCommandExecutor>());
     }
 
@@ -52,6 +51,17 @@ class ExamplePlugin : public endstone::Plugin {
                    const std::vector<std::string> &args) override
     {
         // You can also handle commands here instead of setting an executor in onEnable if you prefer
+        if (command.getName() == "debug") {
+            if (sender.isOp()) {
+                sender.sendMessage(endstone::ColorFormat::DARK_GREEN + "You are seeing this because you are OP!");
+            }
+            else {
+                sender.sendErrorMessage("You should never see this!");
+            }
+            return true;
+        }
+
+        sender.sendErrorMessage("Unknown command: /{}", command.getName());
         return false;
     }