// Copyright (C) Moondance Labs Ltd.

// This file is part of Tanssi.

// Tanssi 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.

// Tanssi 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 Tanssi.  If not, see <http://www.gnu.org/licenses/>.

#[macro_export]

macro_rules! impl_on_charge_evm_transaction {

	{} => {

		type CurrencyAccountId<T> = <T as frame_system::Config>::AccountId;

		type BalanceFor<T> =

			<<T as pallet_evm::Config>::Currency as CurrencyT<CurrencyAccountId<T>>>::Balance;

		type PositiveImbalanceFor<T> =

			<<T as pallet_evm::Config>::Currency as CurrencyT<CurrencyAccountId<T>>>::PositiveImbalance;

		type NegativeImbalanceFor<T> =

			<<T as pallet_evm::Config>::Currency as CurrencyT<CurrencyAccountId<T>>>::NegativeImbalance;

		pub struct OnChargeEVMTransaction<OU>(sp_std::marker::PhantomData<OU>);

		impl<T, OU> OnChargeEVMTransactionT<T> for OnChargeEVMTransaction<OU>

		where

			T: pallet_evm::Config,

			PositiveImbalanceFor<T>: Imbalance<BalanceFor<T>, Opposite = NegativeImbalanceFor<T>>,

			NegativeImbalanceFor<T>: Imbalance<BalanceFor<T>, Opposite = PositiveImbalanceFor<T>>,

			OU: OnUnbalanced<NegativeImbalanceFor<T>>,

			U256: UniqueSaturatedInto<BalanceFor<T>>

		{

			type LiquidityInfo = Option<NegativeImbalanceFor<T>>;

		}

	}

}