// 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 parity_scale_codec::{Decode, Encode, FullCodec, MaxEncodedLen};

use scale_info::TypeInfo;

use sp_core::sp_std::fmt::Debug;

use sp_runtime::{FixedU128, RuntimeDebug};

use xcm::latest::prelude::{InteriorLocation, Location, NetworkId};

/// Current status of the bridge.

pub struct BridgeState {

	/// Current delivery fee factor.

	pub delivery_fee_factor: FixedU128,

	/// Bridge congestion flag.

	pub is_congested: bool,

}

/// Trait that resolves a specific `BridgeId` for `dest`.

pub trait ResolveBridgeId {

	/// Bridge identifier.

	type BridgeId: FullCodec + MaxEncodedLen + TypeInfo + Debug + Clone + PartialEq + Eq;

	/// Resolves `Self::BridgeId` for `dest`. If `None`, it means there is no supported bridge ID.

	fn resolve_for_dest(bridged_dest: &Location) -> Option<Self::BridgeId>;

	/// Resolves `Self::BridgeId` for `bridged_network` and `bridged_dest`. If `None`, it means

	/// there is no supported bridge ID.

	fn resolve_for(

		bridged_network: &NetworkId,

		bridged_dest: &InteriorLocation,

	) -> Option<Self::BridgeId>;

}

/// The default implementation of `ResolveBridgeId` for `()` returns `None`.

impl ResolveBridgeId for () {

	type BridgeId = ();

}

/// A minimized version of `pallet-xcm-bridge-router::Call` that can be used without a runtime.

#[allow(non_camel_case_types)]

pub enum XcmBridgeHubCall<BridgeId> {

	#[codec(index = 0)]

	update_bridge_status {

		bridge_id: BridgeId,

		is_congested: bool,

	},

}