Pass node and provider ids to the auth extension

pallets/ddc-clusters/src/lib.rs

@@ -126,6 +126,7 @@ pub mod pallet {
 				.map_err(|_| Error::<T>::AttemptToAddNonExistentNode)?;
 			ensure!(node.get_cluster_id().is_none(), Error::<T>::NodeIsAlreadyAssigned);
 
+			// Node provider is staking.
 			let node_provider_stash =
 				<pallet_ddc_staking::Pallet<T>>::nodes(&node_pub_key).ok_or(Error::<T>::NoStake)?;
 			let maybe_edge_in_cluster =
@@ -137,13 +138,20 @@ pub mod pallet {
 				.is_some_and(|staking_cluster| staking_cluster == cluster_id);
 			ensure!(has_stake, Error::<T>::NoStake);
 
+			// Cluster extension smart contract allows joining.
+			// is_authorized(node_provider: AccountId, node: Vec<u8>, node_variant: u8) -> bool
+			let mut call_data = Vec::new();
+			call_data.extend_from_slice(&INK_SELECTOR_IS_AUTHORIZED);
+			call_data.append(&mut node_provider_stash.encode());
+			call_data.append(&mut node_pub_key.encode());
+			call_data.push(node_pub_key.variant_as_number());
 			let is_authorized: bool = pallet_contracts::Pallet::<T>::bare_call(
 				caller_id,
 				cluster.props.node_provider_auth_contract,
 				Default::default(),
 				EXTENSION_CALL_GAS_LIMIT,
 				None,
-				Vec::from(INK_SELECTOR_IS_AUTHORIZED),
+				call_data,
 				false,
 			)
 			.result?