Update bridges subtree (#1392)

* Move the bridges subtree under root

* Squashed 'bridges/' changes from 277f0d5496..e50398d1c5

e50398d1c5 bridges subtree fixes (#2528)
99af07522d Markdown linter (#1309) (#2526)
733ff0fe7a `polkadot-staging` branch: Use polkadot-sdk dependencies (#2524)
e8a59f141e Fix benchmark with new XCM::V3 `MAX_INSTRUCTIONS_TO_DECODE` (#2514)
62b185de15 Backport `polkadot-sdk` changes to `polkadot-staging` (#2518)
d9658f4d5b Fix equivocation detection containers startup (#2516) (#2517)
d65db28a8f Backport: building images from locally built binaries (#2513)
5fdbaf45f6 Start the equivocation detection loop from the complex relayer (#2507) (#2512)
7fbb67de46 Backport: Implement basic equivocations detection loop (#2375)
cb7efe245c Manually update deps in polkadot staging (#2371)
d17981fc33 #2351 to polkadot-staging (#2359)

git-subtree-dir: bridges
git-subtree-split: e50398d1c594e4e96df70b0bd376e565d17e8558

* Reapply diener workspacify

* Fix Cargo.toml

* Fix test

* Adjustments

bridges/primitives/xcm-bridge-hub-router/src/lib.rs

@@ -0,0 +1,66 @@
+// 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/>.
+
+//! Primitives of the `xcm-bridge-hub-router` pallet.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use codec::{Decode, Encode, MaxEncodedLen};
+use scale_info::TypeInfo;
+use sp_core::H256;
+use sp_runtime::{FixedU128, RuntimeDebug};
+
+/// Minimal delivery fee factor.
+pub const MINIMAL_DELIVERY_FEE_FACTOR: FixedU128 = FixedU128::from_u32(1);
+
+/// XCM channel status provider that may report whether it is congested or not.
+///
+/// By channel we mean the physical channel that is used to deliver messages of one
+/// of the bridge queues.
+pub trait XcmChannelStatusProvider {
+	/// Returns true if the channel is currently congested.
+	fn is_congested() -> bool;
+}
+
+impl XcmChannelStatusProvider for () {
+	fn is_congested() -> bool {
+		false
+	}
+}
+
+/// Current status of the bridge.
+#[derive(Clone, Decode, Encode, Eq, PartialEq, TypeInfo, MaxEncodedLen, RuntimeDebug)]
+pub struct BridgeState {
+	/// Current delivery fee factor.
+	pub delivery_fee_factor: FixedU128,
+	/// Bridge congestion flag.
+	pub is_congested: bool,
+}
+
+impl Default for BridgeState {
+	fn default() -> BridgeState {
+		BridgeState { delivery_fee_factor: MINIMAL_DELIVERY_FEE_FACTOR, is_congested: false }
+	}
+}
+
+/// A minimized version of `pallet-xcm-bridge-hub-router::Call` that can be used without a runtime.
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone, TypeInfo)]
+#[allow(non_camel_case_types)]
+pub enum XcmBridgeHubRouterCall {
+	/// `pallet-xcm-bridge-hub-router::Call::report_bridge_status`
+	#[codec(index = 0)]
+	report_bridge_status { bridge_id: H256, is_congested: bool },
+}