git.delta.rocks / unique-network / refs/commits / 1719fd0eda15

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617#![cfg_attr(not(feature = "std"), no_std)]1819use core::marker::PhantomData;2021use frame_support::{22	pallet,23	weights::{WeightToFeePolynomial, WeightToFeeCoefficients, WeightToFeeCoefficient, Weight},24	traits::Get,25};26use parity_scale_codec::{Decode, Encode, MaxEncodedLen};27use scale_info::TypeInfo;28use sp_arithmetic::{29	per_things::{Perbill, PerThing},30	traits::{BaseArithmetic, Unsigned},31};32use smallvec::smallvec;3334pub use pallet::*;35use sp_core::U256;3637#[pallet]38mod pallet {39	use super::*;40	use frame_support::{41		traits::Get,42		pallet_prelude::{StorageValue, ValueQuery, DispatchResult, OptionQuery},43		BoundedVec,44	};45	use frame_system::{pallet_prelude::OriginFor, ensure_root};46	use xcm::v1::MultiLocation;4748	#[pallet::config]49	pub trait Config: frame_system::Config {50		#[pallet::constant]51		type DefaultWeightToFeeCoefficient: Get<u64>;52		#[pallet::constant]53		type DefaultMinGasPrice: Get<u64>;5455		#[pallet::constant]56		type MaxXcmAllowedLocations: Get<u32>;57		#[pallet::constant]58		type AppPromotionDailyRate: Get<Perbill>;59		#[pallet::constant]60		type DayRelayBlocks: Get<Self::BlockNumber>;61	}6263	#[pallet::error]64	pub enum Error<T> {65		InconsistentConfiguration,66	}6768	#[pallet::storage]69	pub type WeightToFeeCoefficientOverride<T: Config> = StorageValue<70		Value = u64,71		QueryKind = ValueQuery,72		OnEmpty = T::DefaultWeightToFeeCoefficient,73	>;7475	#[pallet::storage]76	pub type MinGasPriceOverride<T: Config> =77		StorageValue<Value = u64, QueryKind = ValueQuery, OnEmpty = T::DefaultMinGasPrice>;7879	#[pallet::storage]80	pub type XcmAllowedLocationsOverride<T: Config> = StorageValue<81		Value = BoundedVec<MultiLocation, T::MaxXcmAllowedLocations>,82		QueryKind = OptionQuery,83	>;8485	#[pallet::storage]86	pub type AppPromomotionConfigurationOverride<T: Config> =87		StorageValue<Value = AppPromotionConfiguration<T::BlockNumber>, QueryKind = ValueQuery>;8889	#[pallet::call]90	impl<T: Config> Pallet<T> {91		#[pallet::weight(T::DbWeight::get().writes(1))]92		pub fn set_weight_to_fee_coefficient_override(93			origin: OriginFor<T>,94			coeff: Option<u64>,95		) -> DispatchResult {96			ensure_root(origin)?;97			if let Some(coeff) = coeff {98				<WeightToFeeCoefficientOverride<T>>::set(coeff);99			} else {100				<WeightToFeeCoefficientOverride<T>>::kill();101			}102			Ok(())103		}104105		#[pallet::weight(T::DbWeight::get().writes(1))]106		pub fn set_min_gas_price_override(107			origin: OriginFor<T>,108			coeff: Option<u64>,109		) -> DispatchResult {110			ensure_root(origin)?;111			if let Some(coeff) = coeff {112				<MinGasPriceOverride<T>>::set(coeff);113			} else {114				<MinGasPriceOverride<T>>::kill();115			}116			Ok(())117		}118119		#[pallet::weight(T::DbWeight::get().writes(1))]120		pub fn set_xcm_allowed_locations(121			origin: OriginFor<T>,122			locations: Option<BoundedVec<MultiLocation, T::MaxXcmAllowedLocations>>,123		) -> DispatchResult {124			ensure_root(origin)?;125			<XcmAllowedLocationsOverride<T>>::set(locations);126			Ok(())127		}128129		#[pallet::weight(T::DbWeight::get().writes(1))]130		pub fn set_app_promotion_configuration_override(131			origin: OriginFor<T>,132			mut configuration: AppPromotionConfiguration<T::BlockNumber>,133		) -> DispatchResult {134			ensure_root(origin)?;135			if configuration.interval_income.is_some() {136				return Err(<Error<T>>::InconsistentConfiguration.into());137			}138139			configuration.interval_income = configuration.recalculation_interval.map(|b| {140				Perbill::from_rational(b, T::DayRelayBlocks::get())141					* T::AppPromotionDailyRate::get()142			});143144			<AppPromomotionConfigurationOverride<T>>::set(configuration);145146			Ok(())147		}148	}149150	#[pallet::pallet]151	#[pallet::generate_store(pub(super) trait Store)]152	pub struct Pallet<T>(_);153}154155pub struct WeightToFee<T, B>(PhantomData<(T, B)>);156157impl<T, B> WeightToFeePolynomial for WeightToFee<T, B>158where159	T: Config,160	B: BaseArithmetic + From<u32> + From<u64> + Copy + Unsigned,161{162	type Balance = B;163164	fn polynomial() -> WeightToFeeCoefficients<Self::Balance> {165		smallvec!(WeightToFeeCoefficient {166			coeff_integer: (<WeightToFeeCoefficientOverride<T>>::get() / Perbill::ACCURACY as u64)167				.into(),168			coeff_frac: Perbill::from_parts(169				(<WeightToFeeCoefficientOverride<T>>::get() % Perbill::ACCURACY as u64) as u32170			),171			negative: false,172			degree: 1,173		})174	}175}176177pub struct FeeCalculator<T>(PhantomData<T>);178impl<T: Config> fp_evm::FeeCalculator for FeeCalculator<T> {179	fn min_gas_price() -> (U256, Weight) {180		(181			<MinGasPriceOverride<T>>::get().into(),182			T::DbWeight::get().reads(1),183		)184	}185}186187#[derive(Encode, Decode, Clone, Debug, Default, TypeInfo, MaxEncodedLen, PartialEq, PartialOrd)]188pub struct AppPromotionConfiguration<BlockNumber> {189	/// In relay blocks.190	pub recalculation_interval: Option<BlockNumber>,191	/// In parachain blocks.192	pub pending_interval: Option<BlockNumber>,193	/// Value for `RecalculationInterval` based on 0.05% per 24h.194	pub interval_income: Option<Perbill>,195	/// Maximum allowable number of stakers calculated per call of the `app-promotion::PayoutStakers` extrinsic.196	pub max_stakers_per_calculation: Option<u8>,197}