`8138c78fd9cb`

source

pallets/app-promotion/src/lib.rs23.4 KiBsource history
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//! # App promotion18//!19//! The app promotion pallet is designed to ... .20//!21//! ## Interface22//!23//! ### Dispatchable Functions24//!25//! * `start_inflation` - This method sets the inflation start date. Can be only called once.26//! Inflation start block can be backdated and will catch up. The method will create Treasury27//!	account if it does not exist and perform the first inflation deposit.2829// #![recursion_limit = "1024"]30#![cfg_attr(not(feature = "std"), no_std)]3132#[cfg(feature = "runtime-benchmarks")]33mod benchmarking;34#[cfg(test)]35mod tests;36pub mod types;37pub mod weights;3839use sp_std::{40	vec::{Vec},41	vec,42	iter::Sum,43	borrow::ToOwned,44	cell::RefCell,45};46use sp_core::H160;47use codec::EncodeLike;48use pallet_balances::BalanceLock;49pub use types::*;5051// use up_common::constants::{DAYS, UNIQUE};52use up_data_structs::CollectionId;5354use frame_support::{55	dispatch::{DispatchResult},56	traits::{57		Currency, Get, LockableCurrency, WithdrawReasons, tokens::Balance, ExistenceRequirement,58	},59	ensure,60};6162use weights::WeightInfo;6364pub use pallet::*;65use pallet_evm::account::CrossAccountId;66use sp_runtime::{67	Perbill,68	traits::{BlockNumberProvider, CheckedAdd, CheckedSub, AccountIdConversion, Zero},69	ArithmeticError,70};7172pub const LOCK_IDENTIFIER: [u8; 8] = *b"appstake";7374const PENDING_LIMIT_PER_BLOCK: u32 = 3;7576type BalanceOf<T> =77	<<T as Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;7879#[frame_support::pallet]80pub mod pallet {81	use super::*;82	use frame_support::{83		Blake2_128Concat, Twox64Concat, pallet_prelude::*, storage::Key, PalletId,84		traits::ReservableCurrency,85	};86	use frame_system::pallet_prelude::*;8788	#[pallet::config]89	pub trait Config: frame_system::Config + pallet_evm::account::Config {90		type Currency: ExtendedLockableCurrency<Self::AccountId>91			+ ReservableCurrency<Self::AccountId>;9293		type CollectionHandler: CollectionHandler<94			AccountId = Self::AccountId,95			CollectionId = CollectionId,96		>;9798		type ContractHandler: ContractHandler<AccountId = Self::CrossAccountId, ContractId = H160>;99100		type TreasuryAccountId: Get<Self::AccountId>;101102		/// The app's pallet id, used for deriving its sovereign account ID.103		#[pallet::constant]104		type PalletId: Get<PalletId>;105106		/// In relay blocks.107		#[pallet::constant]108		type RecalculationInterval: Get<Self::BlockNumber>;109		/// In relay blocks.110		#[pallet::constant]111		type PendingInterval: Get<Self::BlockNumber>;112113		// /// In chain blocks.114		// #[pallet::constant]115		// type Day: Get<Self::BlockNumber>; // useless116117		#[pallet::constant]118		type Nominal: Get<BalanceOf<Self>>;119120		#[pallet::constant]121		type IntervalIncome: Get<Perbill>;122123		/// Weight information for extrinsics in this pallet.124		type WeightInfo: WeightInfo;125126		// The relay block number provider127		type RelayBlockNumberProvider: BlockNumberProvider<BlockNumber = Self::BlockNumber>;128129		/// Events compatible with [`frame_system::Config::Event`].130		type Event: IsType<<Self as frame_system::Config>::Event> + From<Event<Self>>;131	}132133	#[pallet::pallet]134	#[pallet::generate_store(pub(super) trait Store)]135	pub struct Pallet<T>(_);136137	#[pallet::event]138	#[pallet::generate_deposit(fn deposit_event)]139	pub enum Event<T: Config> {140		StakingRecalculation(141			/// An recalculated staker142			T::AccountId,143			/// Base on which interest is calculated144			BalanceOf<T>,145			/// Amount of accrued interest146			BalanceOf<T>,147		),148		Stake(T::AccountId, BalanceOf<T>),149		Unstake(T::AccountId, BalanceOf<T>),150		SetAdmin(T::AccountId),151	}152153	#[pallet::error]154	pub enum Error<T> {155		/// Error due to action requiring admin to be set156		AdminNotSet,157		/// No permission to perform an action158		NoPermission,159		/// Insufficient funds to perform an action160		NotSufficientFunds,161		PendingForBlockOverflow,162		/// An error related to the fact that an invalid argument was passed to perform an action163		InvalidArgument,164	}165166	#[pallet::storage]167	pub type TotalStaked<T: Config> = StorageValue<Value = BalanceOf<T>, QueryKind = ValueQuery>;168169	#[pallet::storage]170	pub type Admin<T: Config> = StorageValue<Value = T::AccountId, QueryKind = OptionQuery>;171172	/// Amount of tokens staked by account in the blocknumber.173	#[pallet::storage]174	pub type Staked<T: Config> = StorageNMap<175		Key = (176			Key<Blake2_128Concat, T::AccountId>,177			Key<Twox64Concat, T::BlockNumber>,178		),179		Value = (BalanceOf<T>, T::BlockNumber),180		QueryKind = ValueQuery,181	>;182	/// Amount of stakes for an Account183	#[pallet::storage]184	pub type StakesPerAccount<T: Config> =185		StorageMap<_, Blake2_128Concat, T::AccountId, u8, ValueQuery>;186187	/// Amount of tokens pending unstake per user per block.188	// #[pallet::storage]189	// pub type PendingUnstake<T: Config> = StorageNMap<190	// 	Key = (191	// 		Key<Blake2_128Concat, T::AccountId>,192	// 		Key<Twox64Concat, T::BlockNumber>,193	// 	),194	// 	Value = BalanceOf<T>,195	// 	QueryKind = ValueQuery,196	// >;197	#[pallet::storage]198	pub type PendingUnstake<T: Config> = StorageMap<199		_,200		Twox64Concat,201		T::BlockNumber,202		BoundedVec<(T::AccountId, BalanceOf<T>), ConstU32<PENDING_LIMIT_PER_BLOCK>>,203		ValueQuery,204	>;205206	// /// A block when app-promotion has started .I think this is redundant, because we only need `NextInterestBlock`.207	// #[pallet::storage]208	// pub type StartBlock<T: Config> = StorageValue<Value = T::BlockNumber, QueryKind = ValueQuery>;209210	// /// Next target block when interest is recalculated211	// #[pallet::storage]212	// #[pallet::getter(fn get_interest_block)]213	// pub type NextInterestBlock<T: Config> =214	// 	StorageValue<Value = T::BlockNumber, QueryKind = ValueQuery>;215216	/// Stores hash a record for which the last revenue recalculation was performed.217	/// If `None`, then recalculation has not yet been performed or calculations have been completed for all stakers.218	#[pallet::storage]219	#[pallet::getter(fn get_next_calculated_record)]220	pub type NextCalculatedRecord<T: Config> =221		StorageValue<Value = (T::AccountId, T::BlockNumber), QueryKind = OptionQuery>;222223	#[pallet::hooks]224	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {225		fn on_initialize(current_block_number: T::BlockNumber) -> Weight226		where227			<T as frame_system::Config>::BlockNumber: From<u32>,228		{229			let mut consumed_weight = 0;230			let mut add_weight = |reads, writes, weight| {231				consumed_weight += T::DbWeight::get().reads_writes(reads, writes);232				consumed_weight += weight;233			};234235			let block_pending = PendingUnstake::<T>::take(current_block_number);236237			add_weight(0, 1, 0);238239			if !block_pending.is_empty() {240				block_pending.into_iter().for_each(|(staker, amount)| {241					<T::Currency as ReservableCurrency<T::AccountId>>::unreserve(&staker, amount);242				});243			}244245			consumed_weight246		}247	}248249	#[pallet::call]250	impl<T: Config> Pallet<T>251	where252		T::BlockNumber: From<u32> + Into<u32>,253		<<T as Config>::Currency as Currency<T::AccountId>>::Balance: Sum + From<u128>,254	{255		#[pallet::weight(T::WeightInfo::set_admin_address())]256		pub fn set_admin_address(origin: OriginFor<T>, admin: T::CrossAccountId) -> DispatchResult {257			ensure_root(origin)?;258259			<Admin<T>>::set(Some(admin.as_sub().to_owned()));260261			Self::deposit_event(Event::SetAdmin(admin.as_sub().to_owned()));262263			Ok(())264		}265266		#[pallet::weight(T::WeightInfo::stake())]267		pub fn stake(staker: OriginFor<T>, amount: BalanceOf<T>) -> DispatchResult {268			let staker_id = ensure_signed(staker)?;269270			ensure!(271				StakesPerAccount::<T>::get(&staker_id) < 10,272				Error::<T>::NoPermission273			);274275			ensure!(276				amount >= Into::<BalanceOf<T>>::into(100u128) * T::Nominal::get(),277				ArithmeticError::Underflow278			);279280			let balance =281				<<T as Config>::Currency as Currency<T::AccountId>>::free_balance(&staker_id);282283			ensure!(balance >= amount, ArithmeticError::Underflow);284285			<<T as Config>::Currency as Currency<T::AccountId>>::ensure_can_withdraw(286				&staker_id,287				amount,288				WithdrawReasons::RESERVE,289				balance - amount,290			)?;291292			Self::add_lock_balance(&staker_id, amount)?;293294			let block_number = T::RelayBlockNumberProvider::current_block_number();295296			let recalculate_after_interval: T::BlockNumber =297				if block_number % T::RecalculationInterval::get() == 0u32.into() {298					1u32.into()299				} else {300					2u32.into()301				};302303			let recalc_block = (block_number / T::RecalculationInterval::get()304				+ recalculate_after_interval)305				* T::RecalculationInterval::get();306307			<Staked<T>>::insert((&staker_id, block_number), {308				let mut balance_and_recalc_block = <Staked<T>>::get((&staker_id, block_number));309				balance_and_recalc_block.0 = balance_and_recalc_block310					.0311					.checked_add(&amount)312					.ok_or(ArithmeticError::Overflow)?;313				balance_and_recalc_block.1 = recalc_block;314				balance_and_recalc_block315			});316317			<TotalStaked<T>>::set(318				<TotalStaked<T>>::get()319					.checked_add(&amount)320					.ok_or(ArithmeticError::Overflow)?,321			);322323			StakesPerAccount::<T>::mutate(&staker_id, |stakes| *stakes += 1);324325			Self::deposit_event(Event::Stake(staker_id, amount));326327			Ok(())328		}329330		#[pallet::weight(T::WeightInfo::unstake())]331		pub fn unstake(staker: OriginFor<T>) -> DispatchResultWithPostInfo {332			let staker_id = ensure_signed(staker)?;333			let block = <frame_system::Pallet<T>>::block_number() + T::PendingInterval::get();334			let mut pendings = <PendingUnstake<T>>::get(block);335336			ensure!(!pendings.is_full(), Error::<T>::PendingForBlockOverflow);337338			let mut total_stakes = 0u64;339340			let total_staked: BalanceOf<T> = Staked::<T>::drain_prefix((&staker_id,))341				.map(|(_, (amount, _))| {342					total_stakes += 1;343					amount344				})345				.sum();346347			if total_staked.is_zero() {348				return Ok(None.into()); // TO-DO349			}350351			pendings352				.try_push((staker_id.clone(), total_staked))353				.map_err(|_| Error::<T>::PendingForBlockOverflow)?;354355			<PendingUnstake<T>>::insert(block, pendings);356357			Self::unlock_balance_unchecked(&staker_id, total_staked);358359			<T::Currency as ReservableCurrency<T::AccountId>>::reserve(&staker_id, total_staked)?;360361			TotalStaked::<T>::set(362				TotalStaked::<T>::get()363					.checked_sub(&total_staked)364					.ok_or(ArithmeticError::Underflow)?,365			);366367			StakesPerAccount::<T>::remove(&staker_id);368369			Self::deposit_event(Event::Unstake(staker_id, total_staked));370371			Ok(None.into())372		}373374		#[pallet::weight(T::WeightInfo::sponsor_collection())]375		pub fn sponsor_collection(376			admin: OriginFor<T>,377			collection_id: CollectionId,378		) -> DispatchResult {379			let admin_id = ensure_signed(admin)?;380			ensure!(381				admin_id == Admin::<T>::get().ok_or(Error::<T>::AdminNotSet)?,382				Error::<T>::NoPermission383			);384385			T::CollectionHandler::set_sponsor(Self::account_id(), collection_id)386		}387		#[pallet::weight(T::WeightInfo::stop_sponsoring_collection())]388		pub fn stop_sponsoring_collection(389			admin: OriginFor<T>,390			collection_id: CollectionId,391		) -> DispatchResult {392			let admin_id = ensure_signed(admin)?;393394			ensure!(395				admin_id == Admin::<T>::get().ok_or(Error::<T>::AdminNotSet)?,396				Error::<T>::NoPermission397			);398399			ensure!(400				T::CollectionHandler::get_sponsor(collection_id)?401					.ok_or(<Error<T>>::InvalidArgument)?402					== Self::account_id(),403				<Error<T>>::NoPermission404			);405			T::CollectionHandler::remove_collection_sponsor(collection_id)406		}407408		#[pallet::weight(T::WeightInfo::sponsor_contract())]409		pub fn sponsor_conract(admin: OriginFor<T>, contract_id: H160) -> DispatchResult {410			let admin_id = ensure_signed(admin)?;411412			ensure!(413				admin_id == Admin::<T>::get().ok_or(Error::<T>::AdminNotSet)?,414				Error::<T>::NoPermission415			);416417			T::ContractHandler::set_sponsor(418				T::CrossAccountId::from_sub(Self::account_id()),419				contract_id,420			)421		}422423		#[pallet::weight(T::WeightInfo::stop_sponsoring_contract())]424		pub fn stop_sponsoring_contract(admin: OriginFor<T>, contract_id: H160) -> DispatchResult {425			let admin_id = ensure_signed(admin)?;426427			ensure!(428				admin_id == Admin::<T>::get().ok_or(Error::<T>::AdminNotSet)?,429				Error::<T>::NoPermission430			);431432			ensure!(433				T::ContractHandler::get_sponsor(contract_id)?.ok_or(<Error<T>>::InvalidArgument)?434					== T::CrossAccountId::from_sub(Self::account_id()),435				<Error<T>>::NoPermission436			);437			T::ContractHandler::remove_contract_sponsor(contract_id)438		}439440		#[pallet::weight(T::WeightInfo::payout_stakers(stakers_number.unwrap_or(20) as u32))]441		pub fn payout_stakers(admin: OriginFor<T>, stakers_number: Option<u8>) -> DispatchResult {442			let admin_id = ensure_signed(admin)?;443444			ensure!(445				admin_id == Admin::<T>::get().ok_or(Error::<T>::AdminNotSet)?,446				Error::<T>::NoPermission447			);448449			let current_recalc_block =450				Self::get_current_recalc_block(T::RelayBlockNumberProvider::current_block_number());451			let next_recalc_block = current_recalc_block + T::RecalculationInterval::get();452453			let mut storage_iterator = Self::get_next_calculated_key()454				.map_or(Staked::<T>::iter(), |key| Staked::<T>::iter_from(key));455456			NextCalculatedRecord::<T>::set(None);457458			// {459			// 	let mut stakers_number = stakers_number.unwrap_or(20);460			// 	let mut last_id = admin_id;461			// 	let mut income_acc = BalanceOf::<T>::default();462			// 	let mut amount_acc = BalanceOf::<T>::default();463464			// 	while let Some((465			// 		(current_id, staked_block),466			// 		(amount, next_recalc_block_for_stake),467			// 	)) = storage_iterator.next()468			// 	{469			// 		if last_id != current_id {470			// 			if income_acc != BalanceOf::<T>::default() {471			// 				<T::Currency as Currency<T::AccountId>>::transfer(472			// 					&T::TreasuryAccountId::get(),473			// 					&last_id,474			// 					income_acc,475			// 					ExistenceRequirement::KeepAlive,476			// 				)477			// 				.and_then(|_| Self::add_lock_balance(&last_id, income_acc))?;478479			// 				Self::deposit_event(Event::StakingRecalculation(480			// 					last_id, amount, income_acc,481			// 				));482			// 			}483484			// 			if stakers_number == 0 {485			// 				NextCalculatedRecord::<T>::set(Some((current_id, staked_block)));486			// 				break;487			// 			}488			// 			stakers_number -= 1;489			// 			income_acc = BalanceOf::<T>::default();490			// 			last_id = current_id;491			// 		};492			// 		if current_recalc_block >= next_recalc_block_for_stake {493			// 			Self::recalculate_and_insert_stake(494			// 				&last_id,495			// 				staked_block,496			// 				next_recalc_block,497			// 				amount,498			// 				((current_recalc_block - next_recalc_block_for_stake)499			// 					/ T::RecalculationInterval::get())500			// 				.into() + 1,501			// 				&mut income_acc,502			// 			);503			// 		}504			// 	}505			// }506507			// {508			// 	let mut stakers_number = stakers_number.unwrap_or(20);509			// 	let last_id = RefCell::new(None);510			// 	let income_acc = RefCell::new(BalanceOf::<T>::default());511			// 	let amount_acc = RefCell::new(BalanceOf::<T>::default());512513			// 	let flush_stake = || -> DispatchResult {514			// 		if let Some(last_id) = &*last_id.borrow() {515			// 			if !income_acc.borrow().is_zero() {516			// 				<T::Currency as Currency<T::AccountId>>::transfer(517			// 					&T::TreasuryAccountId::get(),518			// 					last_id,519			// 					*income_acc.borrow(),520			// 					ExistenceRequirement::KeepAlive,521			// 				)522			// 				.and_then(|_| {523			// 					Self::add_lock_balance(last_id, *income_acc.borrow());524			// 					<TotalStaked<T>>::try_mutate(|staked| {525			// 						staked526			// 							.checked_add(&*income_acc.borrow())527			// 							.ok_or(ArithmeticError::Overflow.into())528			// 					})529			// 				})?;530531			// 				Self::deposit_event(Event::StakingRecalculation(532			// 					last_id.clone(),533			// 					*amount_acc.borrow(),534			// 					*income_acc.borrow(),535			// 				));536			// 			}537538			// 			*income_acc.borrow_mut() = BalanceOf::<T>::default();539			// 			*amount_acc.borrow_mut() = BalanceOf::<T>::default();540			// 		}541			// 		Ok(())542			// 	};543544			// 	while let Some((545			// 		(current_id, staked_block),546			// 		(amount, next_recalc_block_for_stake),547			// 	)) = storage_iterator.next()548			// 	{549			// 		if stakers_number == 0 {550			// 			NextCalculatedRecord::<T>::set(Some((current_id, staked_block)));551			// 			break;552			// 		}553			// 		stakers_number -= 1;554			// 		if last_id.borrow().as_ref() != Some(&current_id) {555			// 			flush_stake()?;556			// 		};557			// 		*last_id.borrow_mut() = Some(current_id.clone());558			// 		if current_recalc_block >= next_recalc_block_for_stake {559			// 			*amount_acc.borrow_mut() += amount;560			// 			Self::recalculate_and_insert_stake(561			// 				&current_id,562			// 				staked_block,563			// 				next_recalc_block,564			// 				amount,565			// 				((current_recalc_block - next_recalc_block_for_stake)566			// 					/ T::RecalculationInterval::get())567			// 				.into() + 1,568			// 				&mut *income_acc.borrow_mut(),569			// 			);570			// 		}571			// 	}572			// 	flush_stake()?;573			// }574575			{576				let mut stakers_number = stakers_number.unwrap_or(20);577				let last_id = RefCell::new(None);578				let income_acc = RefCell::new(BalanceOf::<T>::default());579				let amount_acc = RefCell::new(BalanceOf::<T>::default());580581				let flush_stake = || -> DispatchResult {582					if let Some(last_id) = &*last_id.borrow() {583						if !income_acc.borrow().is_zero() {584							<T::Currency as Currency<T::AccountId>>::transfer(585								&T::TreasuryAccountId::get(),586								last_id,587								*income_acc.borrow(),588								ExistenceRequirement::KeepAlive,589							)590							.and_then(|_| {591								Self::add_lock_balance(last_id, *income_acc.borrow())?;592								<TotalStaked<T>>::try_mutate(|staked| {593									staked594										.checked_add(&*income_acc.borrow())595										.ok_or(ArithmeticError::Overflow.into())596								})597							})?;598599							Self::deposit_event(Event::StakingRecalculation(600								last_id.clone(),601								*amount_acc.borrow(),602								*income_acc.borrow(),603							));604						}605606						*income_acc.borrow_mut() = BalanceOf::<T>::default();607						*amount_acc.borrow_mut() = BalanceOf::<T>::default();608					}609					Ok(())610				};611612				while let Some((613					(current_id, staked_block),614					(amount, next_recalc_block_for_stake),615				)) = storage_iterator.next()616				{617					if stakers_number == 0 {618						NextCalculatedRecord::<T>::set(Some((current_id, staked_block)));619						break;620					}621					if last_id.borrow().as_ref() != Some(&current_id) {622						flush_stake()?;623						*last_id.borrow_mut() = Some(current_id.clone());624						stakers_number -= 1;625					};626					if current_recalc_block >= next_recalc_block_for_stake {627						*amount_acc.borrow_mut() += amount;628						Self::recalculate_and_insert_stake(629							&current_id,630							staked_block,631							next_recalc_block,632							amount,633							((current_recalc_block - next_recalc_block_for_stake)634								/ T::RecalculationInterval::get())635							.into() + 1,636							&mut *income_acc.borrow_mut(),637						);638					}639				}640				flush_stake()?;641			}642643			Ok(())644		}645	}646}647648impl<T: Config> Pallet<T> {649	pub fn account_id() -> T::AccountId {650		T::PalletId::get().into_account_truncating()651	}652653	fn unlock_balance_unchecked(staker: &T::AccountId, amount: BalanceOf<T>) {654		let mut locked_balance = Self::get_locked_balance(staker).map(|l| l.amount).unwrap();655		locked_balance -= amount;656		Self::set_lock_unchecked(staker, locked_balance);657	}658659	fn add_lock_balance(staker: &T::AccountId, amount: BalanceOf<T>) -> DispatchResult {660		Self::get_locked_balance(staker)661			.map_or(<BalanceOf<T>>::default(), |l| l.amount)662			.checked_add(&amount)663			.map(|new_lock| Self::set_lock_unchecked(staker, new_lock))664			.ok_or(ArithmeticError::Overflow.into())665	}666667	fn set_lock_unchecked(staker: &T::AccountId, amount: BalanceOf<T>) {668		if amount.is_zero() {669			<T::Currency as LockableCurrency<T::AccountId>>::remove_lock(LOCK_IDENTIFIER, &staker);670		} else {671			<T::Currency as LockableCurrency<T::AccountId>>::set_lock(672				LOCK_IDENTIFIER,673				staker,674				amount,675				WithdrawReasons::all(),676			)677		}678	}679680	pub fn get_locked_balance(681		staker: impl EncodeLike<T::AccountId>,682	) -> Option<BalanceLock<BalanceOf<T>>> {683		<T::Currency as ExtendedLockableCurrency<T::AccountId>>::locks(staker)684			.into_iter()685			.find(|l| l.id == LOCK_IDENTIFIER)686	}687688	pub fn total_staked_by_id(staker: impl EncodeLike<T::AccountId>) -> Option<BalanceOf<T>> {689		let staked = Staked::<T>::iter_prefix((staker,))690			.into_iter()691			.fold(<BalanceOf<T>>::default(), |acc, (_, (amount, _))| {692				acc + amount693			});694		if staked != <BalanceOf<T>>::default() {695			Some(staked)696		} else {697			None698		}699	}700701	pub fn total_staked_by_id_per_block(702		staker: impl EncodeLike<T::AccountId>,703	) -> Option<Vec<(T::BlockNumber, BalanceOf<T>)>> {704		let mut staked = Staked::<T>::iter_prefix((staker,))705			.into_iter()706			.map(|(block, (amount, _))| (block, amount))707			.collect::<Vec<_>>();708		staked.sort_by_key(|(block, _)| *block);709		if !staked.is_empty() {710			Some(staked)711		} else {712			None713		}714	}715716	pub fn cross_id_total_staked(staker: Option<T::CrossAccountId>) -> Option<BalanceOf<T>> {717		staker.map_or(Some(<TotalStaked<T>>::get()), |s| {718			Self::total_staked_by_id(s.as_sub())719		})720		// Self::total_staked_by_id(staker.as_sub())721	}722723	pub fn cross_id_locked_balance(staker: T::CrossAccountId) -> BalanceOf<T> {724		Self::get_locked_balance(staker.as_sub())725			.map(|l| l.amount)726			.unwrap_or_default()727	}728729	pub fn cross_id_total_staked_per_block(730		staker: T::CrossAccountId,731	) -> Vec<(T::BlockNumber, BalanceOf<T>)> {732		Self::total_staked_by_id_per_block(staker.as_sub()).unwrap_or_default()733	}734735	fn recalculate_and_insert_stake(736		staker: &T::AccountId,737		staked_block: T::BlockNumber,738		next_recalc_block: T::BlockNumber,739		base: BalanceOf<T>,740		iters: u32,741		income_acc: &mut BalanceOf<T>,742	) {743		let income = Self::calculate_income(base, iters);744745		base.checked_add(&income).map(|res| {746			<Staked<T>>::insert((staker, staked_block), (res, next_recalc_block));747			*income_acc += income;748		});749	}750751	fn calculate_income<I>(base: I, iters: u32) -> I752	where753		I: EncodeLike<BalanceOf<T>> + Balance,754	{755		let mut income = base;756757		(0..iters).for_each(|_| income += T::IntervalIncome::get() * income);758759		income - base760	}761762	fn get_current_recalc_block(current_relay_block: T::BlockNumber) -> T::BlockNumber {763		(current_relay_block / T::RecalculationInterval::get()) * T::RecalculationInterval::get()764	}765766	// fn get_next_recalc_block(current_relay_block: T::BlockNumber) -> T::BlockNumber {767	// 	Self::get_current_recalc_block(current_relay_block) + T::RecalculationInterval::get()768	// }769770	fn get_next_calculated_key() -> Option<Vec<u8>> {771		Self::get_next_calculated_record().map(|key| Staked::<T>::hashed_key_for(key))772	}773}774775impl<T: Config> Pallet<T>776where777	<<T as Config>::Currency as Currency<T::AccountId>>::Balance: Sum,778{779	pub fn cross_id_pending_unstake(staker: Option<T::CrossAccountId>) -> BalanceOf<T> {780		staker.map_or(781			PendingUnstake::<T>::iter_values()782				.flat_map(|pendings| pendings.into_iter().map(|(_, amount)| amount))783				.sum(),784			|s| {785				PendingUnstake::<T>::iter_values()786					.flatten()787					.filter_map(|(id, amount)| {788						if id == *s.as_sub() {789							Some(amount)790						} else {791							None792						}793					})794					.sum()795			},796		)797	}798799	pub fn cross_id_pending_unstake_per_block(800		staker: T::CrossAccountId,801	) -> Vec<(T::BlockNumber, BalanceOf<T>)> {802		let mut unsorted_res = vec![];803		PendingUnstake::<T>::iter().for_each(|(block, pendings)| {804			pendings.into_iter().for_each(|(id, amount)| {805				if id == *staker.as_sub() {806					unsorted_res.push((block, amount));807				};808			})809		});810811		unsorted_res.sort_by_key(|(block, _)| *block);812		unsorted_res813	}814}