feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

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

@@ -0,0 +1,64 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Helpers for implementing various message-related runtime API methods.
+
+use bp_messages::{InboundMessageDetails, MessageNonce, MessagePayload, OutboundMessageDetails};
+use sp_std::vec::Vec;
+
+/// Implementation of the `To*OutboundLaneApi::message_details`.
+pub fn outbound_message_details<Runtime, MessagesPalletInstance>(
+	lane: Runtime::LaneId,
+	begin: MessageNonce,
+	end: MessageNonce,
+) -> Vec<OutboundMessageDetails>
+where
+	Runtime: pallet_bridge_messages::Config<MessagesPalletInstance>,
+	MessagesPalletInstance: 'static,
+{
+	(begin..=end)
+		.filter_map(|nonce| {
+			let message_data =
+				pallet_bridge_messages::Pallet::<Runtime, MessagesPalletInstance>::outbound_message_data(lane, nonce)?;
+			Some(OutboundMessageDetails {
+				nonce,
+				// dispatch message weight is always zero at the source chain, since we're paying for
+				// dispatch at the target chain
+				dispatch_weight: frame_support::weights::Weight::zero(),
+				size: message_data.len() as _,
+			})
+		})
+		.collect()
+}
+
+/// Implementation of the `To*InboundLaneApi::message_details`.
+pub fn inbound_message_details<Runtime, MessagesPalletInstance>(
+	lane: Runtime::LaneId,
+	messages: Vec<(MessagePayload, OutboundMessageDetails)>,
+) -> Vec<InboundMessageDetails>
+where
+	Runtime: pallet_bridge_messages::Config<MessagesPalletInstance>,
+	MessagesPalletInstance: 'static,
+{
+	messages
+		.into_iter()
+		.map(|(payload, details)| {
+			pallet_bridge_messages::Pallet::<Runtime, MessagesPalletInstance>::inbound_message_data(
+				lane, payload, details,
+			)
+		})
+		.collect()
+}