lib.rs

// Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.

// Polkadot 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.

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

//! The Westend runtime. This can be compiled with `#[no_std]`, ready for Wasm.

#![cfg_attr(not(feature = "std"), no_std)]
// `construct_runtime!` does a lot of recursion and requires us to increase the limit.
#![recursion_limit = "512"]

use authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
use beefy_primitives::{
	ecdsa_crypto::{AuthorityId as BeefyId, Signature as BeefySignature},
	mmr::{BeefyDataProvider, MmrLeafVersion},
};
use frame_election_provider_support::{bounds::ElectionBoundsBuilder, onchain, SequentialPhragmen};
use frame_support::{
	construct_runtime,
	genesis_builder_helper::{build_config, create_default_config},
	parameter_types,
	traits::{
		fungible::HoldConsideration, ConstU32, Contains, EitherOf, EitherOfDiverse, EverythingBut,
		InstanceFilter, KeyOwnerProofSystem, LinearStoragePrice, ProcessMessage,
		ProcessMessageError, WithdrawReasons,
	},
	weights::{ConstantMultiplier, WeightMeter},
	PalletId,
};
use frame_system::EnsureRoot;
use pallet_grandpa::{fg_primitives, AuthorityId as GrandpaId};
use pallet_im_online::sr25519::AuthorityId as ImOnlineId;
use pallet_session::historical as session_historical;
use pallet_transaction_payment::{CurrencyAdapter, FeeDetails, RuntimeDispatchInfo};
use parity_scale_codec::{Decode, Encode, MaxEncodedLen};
use primitives::{
	slashing, AccountId, AccountIndex, Balance, BlockNumber, CandidateEvent, CandidateHash,
	CommittedCandidateReceipt, CoreState, DisputeState, ExecutorParams, GroupRotationInfo, Hash,
	Id as ParaId, InboundDownwardMessage, InboundHrmpMessage, Moment, Nonce,
	OccupiedCoreAssumption, PersistedValidationData, PvfCheckStatement, ScrapedOnChainVotes,
	SessionInfo, Signature, ValidationCode, ValidationCodeHash, ValidatorId, ValidatorIndex,
	ValidatorSignature, PARACHAIN_KEY_TYPE_ID,
};
use runtime_common::{
	assigned_slots, auctions, crowdloan, elections::OnChainAccuracy, impl_runtime_weights,
	impls::ToAuthor, paras_registrar, paras_sudo_wrapper, prod_or_fast, slots, BalanceToU256,
	BlockHashCount, BlockLength, CurrencyToVote, SlowAdjustingFeeUpdate, U256ToBalance,
};
use runtime_parachains::{
	assigner_parachains as parachains_assigner_parachains,
	configuration as parachains_configuration, disputes as parachains_disputes,
	disputes::slashing as parachains_slashing,
	dmp as parachains_dmp, hrmp as parachains_hrmp, inclusion as parachains_inclusion,
	inclusion::{AggregateMessageOrigin, UmpQueueId},
	initializer as parachains_initializer, origin as parachains_origin, paras as parachains_paras,
	paras_inherent as parachains_paras_inherent, reward_points as parachains_reward_points,
	runtime_api_impl::v7 as parachains_runtime_api_impl,
	scheduler as parachains_scheduler, session_info as parachains_session_info,
	shared as parachains_shared,
};
use scale_info::TypeInfo;
use sp_core::{OpaqueMetadata, RuntimeDebug, H256};
use sp_runtime::{
	create_runtime_str,
	curve::PiecewiseLinear,
	generic, impl_opaque_keys,
	traits::{
		AccountIdLookup, BlakeTwo256, Block as BlockT, ConvertInto, Extrinsic as ExtrinsicT,
		Keccak256, OpaqueKeys, SaturatedConversion, Verify,
	},
	transaction_validity::{TransactionPriority, TransactionSource, TransactionValidity},
	ApplyExtrinsicResult, FixedU128, KeyTypeId, Perbill, Percent, Permill,
};
use sp_staking::SessionIndex;
use sp_std::{collections::btree_map::BTreeMap, prelude::*};
#[cfg(any(feature = "std", test))]
use sp_version::NativeVersion;
use sp_version::RuntimeVersion;
use xcm::latest::Junction;

pub use frame_system::Call as SystemCall;
pub use pallet_balances::Call as BalancesCall;
pub use pallet_election_provider_multi_phase::{Call as EPMCall, GeometricDepositBase};
#[cfg(feature = "std")]
pub use pallet_staking::StakerStatus;
use pallet_staking::UseValidatorsMap;
pub use pallet_timestamp::Call as TimestampCall;
use sp_runtime::traits::Get;
#[cfg(any(feature = "std", test))]
pub use sp_runtime::BuildStorage;

/// Constant values used within the runtime.
use westend_runtime_constants::{currency::*, fee::*, time::*};

mod bag_thresholds;
mod weights;
pub mod xcm_config;

// Governance and configurations.
pub mod governance;
use governance::{
	pallet_custom_origins, AuctionAdmin, FellowshipAdmin, GeneralAdmin, LeaseAdmin, StakingAdmin,
	Treasurer, TreasurySpender,
};

#[cfg(test)]
mod tests;

impl_runtime_weights!(westend_runtime_constants);

// Make the WASM binary available.
#[cfg(feature = "std")]
include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));

/// Runtime version (Westend).
#[sp_version::runtime_version]
pub const VERSION: RuntimeVersion = RuntimeVersion {
	spec_name: create_runtime_str!("westend"),
	impl_name: create_runtime_str!("parity-westend"),
	authoring_version: 2,
	spec_version: 10020,
	impl_version: 0,
	apis: RUNTIME_API_VERSIONS,
	transaction_version: 22,
	state_version: 1,
};

/// The BABE epoch configuration at genesis.
pub const BABE_GENESIS_EPOCH_CONFIG: babe_primitives::BabeEpochConfiguration =
	babe_primitives::BabeEpochConfiguration {
		c: PRIMARY_PROBABILITY,
		allowed_slots: babe_primitives::AllowedSlots::PrimaryAndSecondaryVRFSlots,
	};

/// Native version.
#[cfg(any(feature = "std", test))]
pub fn native_version() -> NativeVersion {
	NativeVersion { runtime_version: VERSION, can_author_with: Default::default() }
}

/// A type to identify calls to the Identity pallet. These will be filtered to prevent invocation,
/// locking the state of the pallet and preventing further updates to identities and sub-identities.
/// The locked state will be the genesis state of a new system chain and then removed from the Relay
/// Chain.
pub struct IdentityCalls;
impl Contains<RuntimeCall> for IdentityCalls {
	fn contains(c: &RuntimeCall) -> bool {
		matches!(c, RuntimeCall::Identity(_))
	}
}

parameter_types! {
	pub const Version: RuntimeVersion = VERSION;
	pub const SS58Prefix: u8 = 42;
}

impl frame_system::Config for Runtime {
	type BaseCallFilter = EverythingBut<IdentityCalls>;
	type BlockWeights = BlockWeights;
	type BlockLength = BlockLength;
	type RuntimeOrigin = RuntimeOrigin;
	type RuntimeCall = RuntimeCall;
	type Nonce = Nonce;
	type Hash = Hash;
	type Hashing = BlakeTwo256;
	type AccountId = AccountId;
	type Lookup = AccountIdLookup<AccountId, ()>;
	type Block = Block;
	type RuntimeEvent = RuntimeEvent;
	type BlockHashCount = BlockHashCount;
	type DbWeight = RocksDbWeight;
	type Version = Version;
	type PalletInfo = PalletInfo;
	type AccountData = pallet_balances::AccountData<Balance>;
	type OnNewAccount = ();
	type OnKilledAccount = ();
	type SystemWeightInfo = weights::frame_system::WeightInfo<Runtime>;
	type SS58Prefix = SS58Prefix;
	type OnSetCode = ();
	type MaxConsumers = frame_support::traits::ConstU32<16>;
}

parameter_types! {
	pub MaximumSchedulerWeight: frame_support::weights::Weight = Perbill::from_percent(80) *
		BlockWeights::get().max_block;
	pub const MaxScheduledPerBlock: u32 = 50;
	pub const NoPreimagePostponement: Option<u32> = Some(10);
}

impl pallet_scheduler::Config for Runtime {
	type RuntimeOrigin = RuntimeOrigin;
	type RuntimeEvent = RuntimeEvent;
	type PalletsOrigin = OriginCaller;
	type RuntimeCall = RuntimeCall;
	type MaximumWeight = MaximumSchedulerWeight;
	// The goal of having ScheduleOrigin include AuctionAdmin is to allow the auctions track of
	// OpenGov to schedule periodic auctions.
	type ScheduleOrigin = EitherOf<EnsureRoot<AccountId>, AuctionAdmin>;
	type MaxScheduledPerBlock = MaxScheduledPerBlock;
	type WeightInfo = weights::pallet_scheduler::WeightInfo<Runtime>;
	type OriginPrivilegeCmp = frame_support::traits::EqualPrivilegeOnly;
	type Preimages = Preimage;
}

parameter_types! {
	pub const PreimageBaseDeposit: Balance = deposit(2, 64);
	pub const PreimageByteDeposit: Balance = deposit(0, 1);
	pub const PreimageHoldReason: RuntimeHoldReason = RuntimeHoldReason::Preimage(pallet_preimage::HoldReason::Preimage);
}

impl pallet_preimage::Config for Runtime {
	type WeightInfo = weights::pallet_preimage::WeightInfo<Runtime>;
	type RuntimeEvent = RuntimeEvent;
	type Currency = Balances;
	type ManagerOrigin = EnsureRoot<AccountId>;
	type Consideration = HoldConsideration<
		AccountId,
		Balances,
		PreimageHoldReason,
		LinearStoragePrice<PreimageBaseDeposit, PreimageByteDeposit, Balance>,
	>;
}

parameter_types! {
	pub const EpochDuration: u64 = prod_or_fast!(
		EPOCH_DURATION_IN_SLOTS as u64,
		2 * MINUTES as u64
	);
	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
	pub const ReportLongevity: u64 =
		BondingDuration::get() as u64 * SessionsPerEra::get() as u64 * EpochDuration::get();
}

impl pallet_babe::Config for Runtime {
	type EpochDuration = EpochDuration;
	type ExpectedBlockTime = ExpectedBlockTime;

	// session module is the trigger
	type EpochChangeTrigger = pallet_babe::ExternalTrigger;

	type DisabledValidators = Session;

	type WeightInfo = ();

	type MaxAuthorities = MaxAuthorities;
	type MaxNominators = MaxNominatorRewardedPerValidator;

	type KeyOwnerProof =
		<Historical as KeyOwnerProofSystem<(KeyTypeId, pallet_babe::AuthorityId)>>::Proof;

	type EquivocationReportSystem =
		pallet_babe::EquivocationReportSystem<Self, Offences, Historical, ReportLongevity>;
}

parameter_types! {
	pub const IndexDeposit: Balance = 100 * CENTS;
}

impl pallet_indices::Config for Runtime {
	type AccountIndex = AccountIndex;
	type Currency = Balances;
	type Deposit = IndexDeposit;
	type RuntimeEvent = RuntimeEvent;
	type WeightInfo = weights::pallet_indices::WeightInfo<Runtime>;
}

parameter_types! {
	pub const ExistentialDeposit: Balance = EXISTENTIAL_DEPOSIT;
	pub const MaxLocks: u32 = 50;
	pub const MaxReserves: u32 = 50;
}

impl pallet_balances::Config for Runtime {
	type Balance = Balance;
	type DustRemoval = ();
	type RuntimeEvent = RuntimeEvent;
	type ExistentialDeposit = ExistentialDeposit;
	type AccountStore = System;
	type MaxLocks = MaxLocks;
	type MaxReserves = MaxReserves;
	type ReserveIdentifier = [u8; 8];
	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
	type RuntimeHoldReason = RuntimeHoldReason;
	type FreezeIdentifier = RuntimeFreezeReason;
	type MaxFreezes = ConstU32<1>;
	type MaxHolds = ConstU32<1>;
}

parameter_types! {
	pub const BeefySetIdSessionEntries: u32 = BondingDuration::get() * SessionsPerEra::get();
}

impl pallet_beefy::Config for Runtime {
	type BeefyId = BeefyId;
	type MaxAuthorities = MaxAuthorities;
	type MaxNominators = MaxNominatorRewardedPerValidator;
	type MaxSetIdSessionEntries = BeefySetIdSessionEntries;
	type OnNewValidatorSet = BeefyMmrLeaf;
	type WeightInfo = ();
	type KeyOwnerProof = <Historical as KeyOwnerProofSystem<(KeyTypeId, BeefyId)>>::Proof;
	type EquivocationReportSystem =
		pallet_beefy::EquivocationReportSystem<Self, Offences, Historical, ReportLongevity>;
}

impl pallet_mmr::Config for Runtime {
	const INDEXING_PREFIX: &'static [u8] = mmr::INDEXING_PREFIX;
	type Hashing = Keccak256;
	type OnNewRoot = pallet_beefy_mmr::DepositBeefyDigest<Runtime>;
	type WeightInfo = ();
	type LeafData = pallet_beefy_mmr::Pallet<Runtime>;
}

/// MMR helper types.
mod mmr {
	use super::Runtime;
	pub use pallet_mmr::primitives::*;

	pub type Leaf = <<Runtime as pallet_mmr::Config>::LeafData as LeafDataProvider>::LeafData;
	pub type Hashing = <Runtime as pallet_mmr::Config>::Hashing;
	pub type Hash = <Hashing as sp_runtime::traits::Hash>::Output;
}

parameter_types! {
	/// Version of the produced MMR leaf.
	///
	/// The version consists of two parts;
	/// - `major` (3 bits)
	/// - `minor` (5 bits)
	///
	/// `major` should be updated only if decoding the previous MMR Leaf format from the payload
	/// is not possible (i.e. backward incompatible change).
	/// `minor` should be updated if fields are added to the previous MMR Leaf, which given SCALE
	/// encoding does not prevent old leafs from being decoded.
	///
	/// Hence we expect `major` to be changed really rarely (think never).
	/// See [`MmrLeafVersion`] type documentation for more details.
	pub LeafVersion: MmrLeafVersion = MmrLeafVersion::new(0, 0);
}

/// A BEEFY data provider that merkelizes all the parachain heads at the current block
/// (sorted by their parachain id).
pub struct ParaHeadsRootProvider;
impl BeefyDataProvider<H256> for ParaHeadsRootProvider {
	fn extra_data() -> H256 {
		let mut para_heads: Vec<(u32, Vec<u8>)> = Paras::parachains()
			.into_iter()
			.filter_map(|id| Paras::para_head(&id).map(|head| (id.into(), head.0)))
			.collect();
		para_heads.sort_by_key(|k| k.0);
		binary_merkle_tree::merkle_root::<mmr::Hashing, _>(
			para_heads.into_iter().map(|pair| pair.encode()),
		)
		.into()
	}
}

impl pallet_beefy_mmr::Config for Runtime {
	type LeafVersion = LeafVersion;
	type BeefyAuthorityToMerkleLeaf = pallet_beefy_mmr::BeefyEcdsaToEthereum;
	type LeafExtra = H256;
	type BeefyDataProvider = ParaHeadsRootProvider;
}

parameter_types! {
	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
	/// This value increases the priority of `Operational` transactions by adding
	/// a "virtual tip" that's equal to the `OperationalFeeMultiplier * final_fee`.
	pub const OperationalFeeMultiplier: u8 = 5;
}

impl pallet_transaction_payment::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type OnChargeTransaction = CurrencyAdapter<Balances, ToAuthor<Runtime>>;
	type OperationalFeeMultiplier = OperationalFeeMultiplier;
	type WeightToFee = WeightToFee;
	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
	type FeeMultiplierUpdate = SlowAdjustingFeeUpdate<Self>;
}

parameter_types! {
	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
}
impl pallet_timestamp::Config for Runtime {
	type Moment = u64;
	type OnTimestampSet = Babe;
	type MinimumPeriod = MinimumPeriod;
	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
}

impl pallet_authorship::Config for Runtime {
	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Babe>;
	type EventHandler = (Staking, ImOnline);
}

parameter_types! {
	pub const Period: BlockNumber = 10 * MINUTES;
	pub const Offset: BlockNumber = 0;
}

impl_opaque_keys! {
	pub struct OldSessionKeys {
		pub grandpa: Grandpa,
		pub babe: Babe,
		pub im_online: ImOnline,
		pub para_validator: Initializer,
		pub para_assignment: ParaSessionInfo,
		pub authority_discovery: AuthorityDiscovery,
	}
}

impl_opaque_keys! {
	pub struct SessionKeys {
		pub grandpa: Grandpa,
		pub babe: Babe,
		pub im_online: ImOnline,
		pub para_validator: Initializer,
		pub para_assignment: ParaSessionInfo,
		pub authority_discovery: AuthorityDiscovery,
		pub beefy: Beefy,
	}
}

// remove this when removing `OldSessionKeys`
fn transform_session_keys(v: AccountId, old: OldSessionKeys) -> SessionKeys {
	SessionKeys {
		grandpa: old.grandpa,
		babe: old.babe,
		im_online: old.im_online,
		para_validator: old.para_validator,
		para_assignment: old.para_assignment,
		authority_discovery: old.authority_discovery,
		beefy: {
			// From Session::upgrade_keys():
			//
			// Care should be taken that the raw versions of the
			// added keys are unique for every `ValidatorId, KeyTypeId` combination.
			// This is an invariant that the session pallet typically maintains internally.
			//
			// So, produce a dummy value that's unique for the `ValidatorId, KeyTypeId` combination.
			let mut id: BeefyId = sp_application_crypto::ecdsa::Public::from_raw([0u8; 33]).into();
			let id_raw: &mut [u8] = id.as_mut();
			id_raw[1..33].copy_from_slice(v.as_ref());
			id_raw[0..4].copy_from_slice(b"beef");
			id
		},
	}
}

impl pallet_session::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type ValidatorId = AccountId;
	type ValidatorIdOf = pallet_staking::StashOf<Self>;
	type ShouldEndSession = Babe;
	type NextSessionRotation = Babe;
	type SessionManager = pallet_session::historical::NoteHistoricalRoot<Self, Staking>;
	type SessionHandler = <SessionKeys as OpaqueKeys>::KeyTypeIdProviders;
	type Keys = SessionKeys;
	type WeightInfo = weights::pallet_session::WeightInfo<Runtime>;
}

impl pallet_session::historical::Config for Runtime {
	type FullIdentification = pallet_staking::Exposure<AccountId, Balance>;
	type FullIdentificationOf = pallet_staking::ExposureOf<Runtime>;
}

pub struct MaybeSignedPhase;

impl Get<u32> for MaybeSignedPhase {
	fn get() -> u32 {
		// 1 day = 4 eras -> 1 week = 28 eras. We want to disable signed phase once a week to test
		// the fallback unsigned phase is able to compute elections on Westend.
		if Staking::current_era().unwrap_or(1) % 28 == 0 {
			0
		} else {
			SignedPhase::get()
		}
	}
}

parameter_types! {
	// phase durations. 1/4 of the last session for each.
	pub SignedPhase: u32 = prod_or_fast!(
		EPOCH_DURATION_IN_SLOTS / 4,
		(1 * MINUTES).min(EpochDuration::get().saturated_into::<u32>() / 2)
	);
	pub UnsignedPhase: u32 = prod_or_fast!(
		EPOCH_DURATION_IN_SLOTS / 4,
		(1 * MINUTES).min(EpochDuration::get().saturated_into::<u32>() / 2)
	);

	// signed config
	pub const SignedMaxSubmissions: u32 = 128;
	pub const SignedMaxRefunds: u32 = 128 / 4;
	pub const SignedFixedDeposit: Balance = deposit(2, 0);
	pub const SignedDepositIncreaseFactor: Percent = Percent::from_percent(10);
	pub const SignedDepositByte: Balance = deposit(0, 10) / 1024;
	// Each good submission will get 1 WND as reward
	pub SignedRewardBase: Balance = 1 * UNITS;
	pub BetterUnsignedThreshold: Perbill = Perbill::from_rational(5u32, 10_000);

	// 1 hour session, 15 minutes unsigned phase, 4 offchain executions.
	pub OffchainRepeat: BlockNumber = UnsignedPhase::get() / 4;

	pub const MaxElectingVoters: u32 = 22_500;
	/// We take the top 22500 nominators as electing voters and all of the validators as electable
	/// targets. Whilst this is the case, we cannot and shall not increase the size of the
	/// validator intentions.
	pub ElectionBounds: frame_election_provider_support::bounds::ElectionBounds =
		ElectionBoundsBuilder::default().voters_count(MaxElectingVoters::get().into()).build();
	// Maximum winners that can be chosen as active validators
	pub const MaxActiveValidators: u32 = 1000;

}

frame_election_provider_support::generate_solution_type!(
	#[compact]
	pub struct NposCompactSolution16::<
		VoterIndex = u32,
		TargetIndex = u16,
		Accuracy = sp_runtime::PerU16,
		MaxVoters = MaxElectingVoters,
	>(16)
);

pub struct OnChainSeqPhragmen;
impl onchain::Config for OnChainSeqPhragmen {
	type System = Runtime;
	type Solver = SequentialPhragmen<AccountId, OnChainAccuracy>;
	type DataProvider = Staking;
	type WeightInfo = weights::frame_election_provider_support::WeightInfo<Runtime>;
	type MaxWinners = MaxActiveValidators;
	type Bounds = ElectionBounds;
}

impl pallet_election_provider_multi_phase::MinerConfig for Runtime {
	type AccountId = AccountId;
	type MaxLength = OffchainSolutionLengthLimit;
	type MaxWeight = OffchainSolutionWeightLimit;
	type Solution = NposCompactSolution16;
	type MaxVotesPerVoter = <
		<Self as pallet_election_provider_multi_phase::Config>::DataProvider
		as
		frame_election_provider_support::ElectionDataProvider
	>::MaxVotesPerVoter;
	type MaxWinners = MaxActiveValidators;

	// The unsigned submissions have to respect the weight of the submit_unsigned call, thus their
	// weight estimate function is wired to this call's weight.
	fn solution_weight(v: u32, t: u32, a: u32, d: u32) -> Weight {
		<
			<Self as pallet_election_provider_multi_phase::Config>::WeightInfo
			as
			pallet_election_provider_multi_phase::WeightInfo
		>::submit_unsigned(v, t, a, d)
	}
}

impl pallet_election_provider_multi_phase::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type Currency = Balances;
	type EstimateCallFee = TransactionPayment;
	type SignedPhase = MaybeSignedPhase;
	type UnsignedPhase = UnsignedPhase;
	type SignedMaxSubmissions = SignedMaxSubmissions;
	type SignedMaxRefunds = SignedMaxRefunds;
	type SignedRewardBase = SignedRewardBase;
	type SignedDepositBase =
		GeometricDepositBase<Balance, SignedFixedDeposit, SignedDepositIncreaseFactor>;
	type SignedDepositByte = SignedDepositByte;
	type SignedDepositWeight = ();
	type SignedMaxWeight =
		<Self::MinerConfig as pallet_election_provider_multi_phase::MinerConfig>::MaxWeight;
	type MinerConfig = Self;
	type SlashHandler = (); // burn slashes
	type RewardHandler = (); // nothing to do upon rewards
	type BetterUnsignedThreshold = BetterUnsignedThreshold;
	type BetterSignedThreshold = ();
	type OffchainRepeat = OffchainRepeat;
	type MinerTxPriority = NposSolutionPriority;
	type DataProvider = Staking;
	#[cfg(any(feature = "fast-runtime", feature = "runtime-benchmarks"))]
	type Fallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
	#[cfg(not(any(feature = "fast-runtime", feature = "runtime-benchmarks")))]
	type Fallback = frame_election_provider_support::NoElection<(
		AccountId,
		BlockNumber,
		Staking,
		MaxActiveValidators,
	)>;
	type GovernanceFallback = onchain::OnChainExecution<OnChainSeqPhragmen>;
	type Solver = SequentialPhragmen<
		AccountId,
		pallet_election_provider_multi_phase::SolutionAccuracyOf<Self>,
		(),
	>;
	type BenchmarkingConfig = runtime_common::elections::BenchmarkConfig;
	type ForceOrigin = EnsureRoot<AccountId>;
	type WeightInfo = weights::pallet_election_provider_multi_phase::WeightInfo<Self>;
	type MaxWinners = MaxActiveValidators;
	type ElectionBounds = ElectionBounds;
}

parameter_types! {
	pub const BagThresholds: &'static [u64] = &bag_thresholds::THRESHOLDS;
}

type VoterBagsListInstance = pallet_bags_list::Instance1;
impl pallet_bags_list::Config<VoterBagsListInstance> for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type ScoreProvider = Staking;
	type WeightInfo = weights::pallet_bags_list::WeightInfo<Runtime>;
	type BagThresholds = BagThresholds;
	type Score = sp_npos_elections::VoteWeight;
}

pallet_staking_reward_curve::build! {
	const REWARD_CURVE: PiecewiseLinear<'static> = curve!(
		min_inflation: 0_025_000,
		max_inflation: 0_100_000,
		ideal_stake: 0_500_000,
		falloff: 0_050_000,
		max_piece_count: 40,
		test_precision: 0_005_000,
	);
}

parameter_types! {
	// Six sessions in an era (6 hours).
	pub const SessionsPerEra: SessionIndex = prod_or_fast!(6, 1);
	// 2 eras for unbonding (12 hours).
	pub const BondingDuration: sp_staking::EraIndex = 2;
	// 1 era in which slashes can be cancelled (6 hours).
	pub const SlashDeferDuration: sp_staking::EraIndex = 1;
	pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
	pub const MaxNominatorRewardedPerValidator: u32 = 64;
	pub const OffendingValidatorsThreshold: Perbill = Perbill::from_percent(17);
	pub const MaxNominations: u32 = <NposCompactSolution16 as frame_election_provider_support::NposSolution>::LIMIT as u32;
}

impl pallet_staking::Config for Runtime {
	type Currency = Balances;
	type CurrencyBalance = Balance;
	type UnixTime = Timestamp;
	type CurrencyToVote = CurrencyToVote;
	type RewardRemainder = ();
	type RuntimeEvent = RuntimeEvent;
	type Slash = ();
	type Reward = ();
	type SessionsPerEra = SessionsPerEra;
	type BondingDuration = BondingDuration;
	type SlashDeferDuration = SlashDeferDuration;
	type AdminOrigin = EnsureRoot<AccountId>;
	type SessionInterface = Self;
	type EraPayout = pallet_staking::ConvertCurve<RewardCurve>;
	type MaxNominatorRewardedPerValidator = MaxNominatorRewardedPerValidator;
	type OffendingValidatorsThreshold = OffendingValidatorsThreshold;
	type NextNewSession = Session;
	type ElectionProvider = ElectionProviderMultiPhase;
	type GenesisElectionProvider = onchain::OnChainExecution<OnChainSeqPhragmen>;
	type VoterList = VoterList;
	type TargetList = UseValidatorsMap<Self>;
	type NominationsQuota = pallet_staking::FixedNominationsQuota<{ MaxNominations::get() }>;
	type MaxUnlockingChunks = frame_support::traits::ConstU32<32>;
	type HistoryDepth = frame_support::traits::ConstU32<84>;
	type BenchmarkingConfig = runtime_common::StakingBenchmarkingConfig;
	type EventListeners = NominationPools;
	type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
}

impl pallet_fast_unstake::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type Currency = Balances;
	type BatchSize = frame_support::traits::ConstU32<64>;
	type Deposit = frame_support::traits::ConstU128<{ UNITS }>;
	type ControlOrigin = EnsureRoot<AccountId>;
	type Staking = Staking;
	type MaxErasToCheckPerBlock = ConstU32<1>;
	#[cfg(feature = "runtime-benchmarks")]
	type MaxBackersPerValidator = MaxNominatorRewardedPerValidator;
	type WeightInfo = weights::pallet_fast_unstake::WeightInfo<Runtime>;
}

parameter_types! {
	pub const ProposalBond: Permill = Permill::from_percent(5);
	pub const ProposalBondMinimum: Balance = 2000 * CENTS;
	pub const ProposalBondMaximum: Balance = 1 * GRAND;
	pub const SpendPeriod: BlockNumber = 6 * DAYS;
	pub const Burn: Permill = Permill::from_perthousand(2);
	pub const TreasuryPalletId: PalletId = PalletId(*b"py/trsry");

	pub const TipCountdown: BlockNumber = 1 * DAYS;
	pub const TipFindersFee: Percent = Percent::from_percent(20);
	pub const TipReportDepositBase: Balance = 100 * CENTS;
	pub const DataDepositPerByte: Balance = 1 * CENTS;
	pub const MaxApprovals: u32 = 100;
	pub const MaxAuthorities: u32 = 100_000;
	pub const MaxKeys: u32 = 10_000;
	pub const MaxPeerInHeartbeats: u32 = 10_000;
}

impl pallet_treasury::Config for Runtime {
	type PalletId = TreasuryPalletId;
	type Currency = Balances;
	type ApproveOrigin = EitherOfDiverse<EnsureRoot<AccountId>, Treasurer>;
	type RejectOrigin = EitherOfDiverse<EnsureRoot<AccountId>, Treasurer>;
	type RuntimeEvent = RuntimeEvent;
	type OnSlash = Treasury;
	type ProposalBond = ProposalBond;
	type ProposalBondMinimum = ProposalBondMinimum;
	type ProposalBondMaximum = ProposalBondMaximum;
	type SpendPeriod = SpendPeriod;
	type Burn = Burn;
	type BurnDestination = ();
	type MaxApprovals = MaxApprovals;
	type WeightInfo = weights::pallet_treasury::WeightInfo<Runtime>;
	type SpendFunds = ();
	type SpendOrigin = TreasurySpender;
}

impl pallet_offences::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
	type OnOffenceHandler = Staking;
}

impl pallet_authority_discovery::Config for Runtime {
	type MaxAuthorities = MaxAuthorities;
}

parameter_types! {
	pub const NposSolutionPriority: TransactionPriority = TransactionPriority::max_value() / 2;
	pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
}

impl pallet_im_online::Config for Runtime {
	type AuthorityId = ImOnlineId;
	type RuntimeEvent = RuntimeEvent;
	type ValidatorSet = Historical;
	type NextSessionRotation = Babe;
	type ReportUnresponsiveness = Offences;
	type UnsignedPriority = ImOnlineUnsignedPriority;
	type WeightInfo = weights::pallet_im_online::WeightInfo<Runtime>;
	type MaxKeys = MaxKeys;
	type MaxPeerInHeartbeats = MaxPeerInHeartbeats;
}

parameter_types! {
	pub const MaxSetIdSessionEntries: u32 = BondingDuration::get() * SessionsPerEra::get();
}

impl pallet_grandpa::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;

	type WeightInfo = ();
	type MaxAuthorities = MaxAuthorities;
	type MaxNominators = MaxNominatorRewardedPerValidator;
	type MaxSetIdSessionEntries = MaxSetIdSessionEntries;

	type KeyOwnerProof = <Historical as KeyOwnerProofSystem<(KeyTypeId, GrandpaId)>>::Proof;

	type EquivocationReportSystem =
		pallet_grandpa::EquivocationReportSystem<Self, Offences, Historical, ReportLongevity>;
}

/// Submits a transaction with the node's public and signature type. Adheres to the signed extension
/// format of the chain.
impl<LocalCall> frame_system::offchain::CreateSignedTransaction<LocalCall> for Runtime
where
	RuntimeCall: From<LocalCall>,
{
	fn create_transaction<C: frame_system::offchain::AppCrypto<Self::Public, Self::Signature>>(
		call: RuntimeCall,
		public: <Signature as Verify>::Signer,
		account: AccountId,
		nonce: <Runtime as frame_system::Config>::Nonce,
	) -> Option<(RuntimeCall, <UncheckedExtrinsic as ExtrinsicT>::SignaturePayload)> {
		use sp_runtime::traits::StaticLookup;
		// take the biggest period possible.
		let period =
			BlockHashCount::get().checked_next_power_of_two().map(|c| c / 2).unwrap_or(2) as u64;

		let current_block = System::block_number()
			.saturated_into::<u64>()
			// The `System::block_number` is initialized with `n+1`,
			// so the actual block number is `n`.
			.saturating_sub(1);
		let tip = 0;
		let extra: SignedExtra = (
			frame_system::CheckNonZeroSender::<Runtime>::new(),
			frame_system::CheckSpecVersion::<Runtime>::new(),
			frame_system::CheckTxVersion::<Runtime>::new(),
			frame_system::CheckGenesis::<Runtime>::new(),
			frame_system::CheckMortality::<Runtime>::from(generic::Era::mortal(
				period,
				current_block,
			)),
			frame_system::CheckNonce::<Runtime>::from(nonce),
			frame_system::CheckWeight::<Runtime>::new(),
			pallet_transaction_payment::ChargeTransactionPayment::<Runtime>::from(tip),
		);
		let raw_payload = SignedPayload::new(call, extra)
			.map_err(|e| {
				log::warn!("Unable to create signed payload: {:?}", e);
			})
			.ok()?;
		let signature = raw_payload.using_encoded(|payload| C::sign(payload, public))?;
		let (call, extra, _) = raw_payload.deconstruct();
		let address = <Runtime as frame_system::Config>::Lookup::unlookup(account);
		Some((call, (address, signature, extra)))
	}
}

impl frame_system::offchain::SigningTypes for Runtime {
	type Public = <Signature as Verify>::Signer;
	type Signature = Signature;
}

impl<C> frame_system::offchain::SendTransactionTypes<C> for Runtime
where
	RuntimeCall: From<C>,
{
	type OverarchingCall = RuntimeCall;
	type Extrinsic = UncheckedExtrinsic;
}

parameter_types! {
	// Minimum 100 bytes/KSM deposited (1 CENT/byte)
	pub const BasicDeposit: Balance = 1000 * CENTS;       // 258 bytes on-chain
	pub const FieldDeposit: Balance = 250 * CENTS;        // 66 bytes on-chain
	pub const SubAccountDeposit: Balance = 200 * CENTS;   // 53 bytes on-chain
	pub const MaxSubAccounts: u32 = 100;
	pub const MaxAdditionalFields: u32 = 100;
	pub const MaxRegistrars: u32 = 20;
}

impl pallet_identity::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type Currency = Balances;
	type Slashed = ();
	type BasicDeposit = BasicDeposit;
	type FieldDeposit = FieldDeposit;
	type SubAccountDeposit = SubAccountDeposit;
	type MaxSubAccounts = MaxSubAccounts;
	type MaxAdditionalFields = MaxAdditionalFields;
	type MaxRegistrars = MaxRegistrars;
	type ForceOrigin = EitherOf<EnsureRoot<Self::AccountId>, GeneralAdmin>;
	type RegistrarOrigin = EitherOf<EnsureRoot<Self::AccountId>, GeneralAdmin>;
	type WeightInfo = weights::pallet_identity::WeightInfo<Runtime>;
}

impl pallet_utility::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type RuntimeCall = RuntimeCall;
	type PalletsOrigin = OriginCaller;
	type WeightInfo = weights::pallet_utility::WeightInfo<Runtime>;
}

parameter_types! {
	// One storage item; key size is 32; value is size 4+4+16+32 bytes = 56 bytes.
	pub const DepositBase: Balance = deposit(1, 88);
	// Additional storage item size of 32 bytes.
	pub const DepositFactor: Balance = deposit(0, 32);
	pub const MaxSignatories: u32 = 100;
}

impl pallet_multisig::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type RuntimeCall = RuntimeCall;
	type Currency = Balances;
	type DepositBase = DepositBase;
	type DepositFactor = DepositFactor;
	type MaxSignatories = MaxSignatories;
	type WeightInfo = weights::pallet_multisig::WeightInfo<Runtime>;
}

parameter_types! {
	pub const ConfigDepositBase: Balance = 500 * CENTS;
	pub const FriendDepositFactor: Balance = 50 * CENTS;
	pub const MaxFriends: u16 = 9;
	pub const RecoveryDeposit: Balance = 500 * CENTS;
}

impl pallet_recovery::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type WeightInfo = ();
	type RuntimeCall = RuntimeCall;
	type Currency = Balances;
	type ConfigDepositBase = ConfigDepositBase;
	type FriendDepositFactor = FriendDepositFactor;
	type MaxFriends = MaxFriends;
	type RecoveryDeposit = RecoveryDeposit;
}

parameter_types! {
	pub const MinVestedTransfer: Balance = 100 * CENTS;
	pub UnvestedFundsAllowedWithdrawReasons: WithdrawReasons =
		WithdrawReasons::except(WithdrawReasons::TRANSFER | WithdrawReasons::RESERVE);
}

impl pallet_vesting::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type Currency = Balances;
	type BlockNumberToBalance = ConvertInto;
	type MinVestedTransfer = MinVestedTransfer;
	type WeightInfo = weights::pallet_vesting::WeightInfo<Runtime>;
	type UnvestedFundsAllowedWithdrawReasons = UnvestedFundsAllowedWithdrawReasons;
	const MAX_VESTING_SCHEDULES: u32 = 28;
}

impl pallet_sudo::Config for Runtime {
	type RuntimeEvent = RuntimeEvent;
	type RuntimeCall = RuntimeCall;
	type WeightInfo = weights::pallet_sudo::WeightInfo<Runtime>;
}

parameter_types! {
	// One storage item; key size 32, value size 8; .
	pub const ProxyDepositBase: Balance = deposit(1, 8);
	// Additional storage item size of 33 bytes.
	pub const ProxyDepositFactor: Balance = deposit(0, 33);
	pub const MaxProxies: u16 = 32;
	pub const AnnouncementDepositBase: Balance = deposit(1, 8);
	pub const AnnouncementDepositFactor: Balance = deposit(0, 66);
	pub const MaxPending: u16 = 32;
}

/// The type used to represent the kinds of proxying allowed.
#[derive(
	Copy,
	Clone,
	Eq,
	PartialEq,
	Ord,
	PartialOrd,
	Encode,
	Decode,
	RuntimeDebug,
	MaxEncodedLen,
	TypeInfo,
)]
pub enum ProxyType {
	Any,
	NonTransfer,
	Governance,
	Staking,
	SudoBalances,
	IdentityJudgement,
	CancelProxy,
	Auction,
	NominationPools,
}
impl Default for ProxyType {
	fn default() -> Self {
		Self::Any
	}
}
impl InstanceFilter<RuntimeCall> for ProxyType {
	fn filter(&self, c: &RuntimeCall) -> bool {
		match self {
			ProxyType::Any => true,
			ProxyType::NonTransfer => matches!(
				c,
				RuntimeCall::System(..) |
				RuntimeCall::Babe(..) |
				RuntimeCall::Timestamp(..) |
				RuntimeCall::Indices(pallet_indices::Call::claim{..}) |
				RuntimeCall::Indices(pallet_indices::Call::free{..}) |
				RuntimeCall::Indices(pallet_indices::Call::freeze{..}) |
				// Specifically omitting Indices `transfer`, `force_transfer`
				// Specifically omitting the entire Balances pallet
				RuntimeCall::Staking(..) |
				RuntimeCall::Session(..) |
				RuntimeCall::Grandpa(..) |
				RuntimeCall::ImOnline(..) |
				RuntimeCall::Utility(..) |
				RuntimeCall::Identity(..) |
				RuntimeCall::ConvictionVoting(..) |
				RuntimeCall::Referenda(..) |
				RuntimeCall::Whitelist(..) |
				RuntimeCall::Recovery(pallet_recovery::Call::as_recovered{..}) |
				RuntimeCall::Recovery(pallet_recovery::Call::vouch_recovery{..}) |
				RuntimeCall::Recovery(pallet_recovery::Call::claim_recovery{..}) |
				RuntimeCall::Recovery(pallet_recovery::Call::close_recovery{..}) |
				RuntimeCall::Recovery(pallet_recovery::Call::remove_recovery{..}) |
				RuntimeCall::Recovery(pallet_recovery::Call::cancel_recovered{..}) |
				// Specifically omitting Recovery `create_recovery`, `initiate_recovery`
				RuntimeCall::Vesting(pallet_vesting::Call::vest{..}) |
				RuntimeCall::Vesting(pallet_vesting::Call::vest_other{..}) |
				// Specifically omitting Vesting `vested_transfer`, and `force_vested_transfer`