fix: handle case without parameters specified

Author: moliholy

crates/pop-cli/src/commands/call/chain.rs

@@ -24,6 +24,14 @@ use url::Url;
 const DEFAULT_URI: &str = "//Alice";
 const ENCODED_CALL_DATA_MAX_LEN: usize = 500; // Maximum length of encoded call data to display.
 
+fn to_tuple(args: &[String]) -> String {
+	match args.len() {
+		0 => "".to_string(),
+		1 => args[0].clone(),
+		_ => format!("({})", args.join(",")),
+	}
+}
+
 /// Command to construct and execute extrinsics with configurable pallets, functions, arguments, and
 /// signing options.
 #[derive(Args, Clone, Default)]
@@ -308,7 +316,7 @@ impl CallChainCommand {
 						let is_composite = key_param.sub_params.len() > 1;
 						let (mut params, len) =
 							if self.args.len() == key_param.sub_params.len() && is_composite {
-								(vec![format!("({})", self.args.join(","))], self.args.len())
+								(vec![to_tuple(self.args.as_slice())], self.args.len())
 							} else if self.args.len() == 1 && is_composite {
 								// Handle composite tuple string like "(A, B, C)"
 								let arg = self.args[0]
@@ -345,6 +353,9 @@ impl CallChainCommand {
 									break;
 								}
 							}
+							if is_composite {
+								params = vec![to_tuple(params.as_slice())];
+							}
 						}
 						params
 					} else {