Reintroduce msg dispatch status reporting (#2027)

* Use an actual Result inside MessageDispatchResult

We need this in order to distinguish between Ok and Err

* Revert #1660

* Fixes + simplifications

* Implement review suggestions

bridges/bin/runtime-common/src/integrity.rs

@@ -307,8 +307,10 @@ pub fn check_message_lane_weights<C: Chain, T: frame_system::Config>(
 		messages::target::maximal_incoming_message_dispatch_weight(C::max_extrinsic_weight()),
 	);
 
-	let max_incoming_inbound_lane_data_proof_size =
-		InboundLaneData::<()>::encoded_size_hint_u32(this_chain_max_unrewarded_relayers as _);
+	let max_incoming_inbound_lane_data_proof_size = InboundLaneData::<()>::encoded_size_hint_u32(
+		this_chain_max_unrewarded_relayers as _,
+		this_chain_max_unconfirmed_messages as _,
+	);
 	pallet_bridge_messages::ensure_able_to_receive_confirmation::<Weights<T>>(
 		C::max_extrinsic_size(),
 		C::max_extrinsic_weight(),

bridges/bin/runtime-common/src/messages_xcm_extension.rs

@@ -39,9 +39,8 @@ pub type XcmAsPlainPayload = sp_std::prelude::Vec<u8>;
 
 /// Message dispatch result type for single message
 #[derive(CloneNoBound, EqNoBound, PartialEqNoBound, Encode, Decode, Debug, TypeInfo)]
-pub enum XcmBlobMessageDispatchResult {
+pub enum XcmBlobMessageDispatchError {
 	InvalidPayload,
-	Dispatched,
 	NotDispatched(#[codec(skip)] Option<DispatchBlobError>),
 }
 
@@ -65,7 +64,7 @@ impl<
 	for XcmBlobMessageDispatch<SourceBridgeHubChain, TargetBridgeHubChain, BlobDispatcher, Weights>
 {
 	type DispatchPayload = XcmAsPlainPayload;
-	type DispatchLevelResult = XcmBlobMessageDispatchResult;
+	type DispatchError = XcmBlobMessageDispatchError;
 
 	fn dispatch_weight(message: &mut DispatchMessage<Self::DispatchPayload>) -> Weight {
 		match message.data.payload {
@@ -80,7 +79,7 @@ impl<
 	fn dispatch(
 		_relayer_account: &AccountIdOf<SourceBridgeHubChain>,
 		message: DispatchMessage<Self::DispatchPayload>,
-	) -> MessageDispatchResult<Self::DispatchLevelResult> {
+	) -> MessageDispatchResult<Self::DispatchError> {
 		let payload = match message.data.payload {
 			Ok(payload) => payload,
 			Err(e) => {
@@ -92,7 +91,7 @@ impl<
 				);
 				return MessageDispatchResult {
 					unspent_weight: Weight::zero(),
-					dispatch_level_result: XcmBlobMessageDispatchResult::InvalidPayload,
+					dispatch_result: Err(XcmBlobMessageDispatchError::InvalidPayload),
 				}
 			},
 		};
@@ -103,7 +102,7 @@ impl<
 					"[XcmBlobMessageDispatch] DispatchBlob::dispatch_blob was ok - message_nonce: {:?}",
 					message.key.nonce
 				);
-				XcmBlobMessageDispatchResult::Dispatched
+				Ok(())
 			},
 			Err(e) => {
 				log::error!(
@@ -111,10 +110,13 @@ impl<
 					"[XcmBlobMessageDispatch] DispatchBlob::dispatch_blob failed, error: {:?} - message_nonce: {:?}",
 					e, message.key.nonce
 				);
-				XcmBlobMessageDispatchResult::NotDispatched(Some(e))
+				Err(XcmBlobMessageDispatchError::NotDispatched(Some(e)))
 			},
 		};
-		MessageDispatchResult { unspent_weight: Weight::zero(), dispatch_level_result }
+		MessageDispatchResult {
+			unspent_weight: Weight::zero(),
+			dispatch_result: dispatch_level_result,
+		}
 	}
 }