feat: show children

src/commands/system/help.rs

@@ -19,6 +19,38 @@ impl HelpCommand {
     }
 }
 
+fn format_argument_spec(arg: &ArgumentSpec) -> String {
+    let argument_brackets = if arg.required {
+        ("(", "*)")
+    } else {
+        ("(", ")")
+    };
+
+    let mut s = String::new();
+
+    if let ArgumentType::Enum(possibilities) = &arg.arg_type {
+        s.push_str(argument_brackets.0);
+        s.push_str(&possibilities.to_vec().join("|"));
+    } else {
+        s.push_str(argument_brackets.0);
+        s.push_str(arg.name);
+    }
+
+    if !arg.children.is_empty() {
+        let children_str = arg
+            .children
+            .iter()
+            .map(format_argument_spec)
+            .collect::<Vec<_>>()
+            .join(" ");
+        s.push(' ');
+        s.push_str(&children_str);
+    }
+
+    s.push_str(argument_brackets.1);
+    s
+}
+
 #[async_trait]
 impl Command for HelpCommand {
     fn name(&self) -> &'static str {
@@ -58,18 +90,7 @@ impl Command for HelpCommand {
                 let mut arg_string: Vec<String> = Vec::new();
 
                 for arg in cmd.argument_spec() {
-                    let argument_brackets = {
+                    arg_string.push(format_argument_spec(arg));
-                        if arg.required {
-                            ("(", "*)")
-                        } else {
-                            ("(", ")")
-                        }
-                    };
-
-                    arg_string.push(format!(
-                        "{}{}{}",
-                        argument_brackets.0, arg.name, argument_brackets.1
-                    ));
                 }
 
                 format!(