lib.rs

// Copyright 2017-2020 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 Polkadot 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 to 256.
#![recursion_limit = "256"]

use pallet_transaction_payment::CurrencyAdapter;
use sp_std::prelude::*;
use sp_std::collections::btree_map::BTreeMap;
use parity_scale_codec::{Encode, Decode};
use primitives::v1::{
	AccountId, AccountIndex, Balance, BlockNumber, CandidateEvent, CommittedCandidateReceipt,
	CoreState, GroupRotationInfo, Hash, Id as ParaId, Moment, Nonce, OccupiedCoreAssumption,
	PersistedValidationData, Signature, ValidationCode, ValidatorId, ValidatorIndex,
	InboundDownwardMessage, InboundHrmpMessage, SessionInfo,
};
use runtime_common::{
	paras_sudo_wrapper, paras_registrar, xcm_sender, slots,
	SlowAdjustingFeeUpdate, CurrencyToVote,
	impls::ToAuthor,
	BlockHashCount, BlockWeights, BlockLength, RocksDbWeight,
	OffchainSolutionWeightLimit, OffchainSolutionLengthLimit,
	ParachainSessionKeyPlaceholder, AssignmentSessionKeyPlaceholder,
};

use runtime_parachains::origin as parachains_origin;
use runtime_parachains::configuration as parachains_configuration;
use runtime_parachains::shared as parachains_shared;
use runtime_parachains::inclusion as parachains_inclusion;
use runtime_parachains::paras_inherent as parachains_paras_inherent;
use runtime_parachains::initializer as parachains_initializer;
use runtime_parachains::session_info as parachains_session_info;
use runtime_parachains::paras as parachains_paras;
use runtime_parachains::dmp as parachains_dmp;
use runtime_parachains::ump as parachains_ump;
use runtime_parachains::hrmp as parachains_hrmp;
use runtime_parachains::scheduler as parachains_scheduler;
use runtime_parachains::reward_points as parachains_reward_points;
use runtime_parachains::runtime_api_impl::v1 as parachains_runtime_api_impl;

use xcm::v0::{MultiLocation, NetworkId};
use xcm_executor::XcmExecutor;
use xcm_builder::{
	AccountId32Aliases, ChildParachainConvertsVia, SovereignSignedViaLocation, CurrencyAdapter as XcmCurrencyAdapter,
	ChildParachainAsNative, SignedAccountId32AsNative, ChildSystemParachainAsSuperuser, LocationInverter, IsConcrete,
	FixedWeightBounds, TakeWeightCredit, AllowTopLevelPaidExecutionFrom,
	AllowUnpaidExecutionFrom, IsChildSystemParachain, UsingComponents,
};

use sp_runtime::{
	create_runtime_str, generic, impl_opaque_keys,
	ApplyExtrinsicResult, KeyTypeId, Perbill, curve::PiecewiseLinear,
	transaction_validity::{TransactionValidity, TransactionSource, TransactionPriority},
	traits::{
		BlakeTwo256, Block as BlockT, OpaqueKeys, ConvertInto, AccountIdLookup,
		Extrinsic as ExtrinsicT, SaturatedConversion, Verify,
	},
};
#[cfg(feature = "runtime-benchmarks")]
use sp_runtime::RuntimeString;
use sp_version::RuntimeVersion;
use pallet_grandpa::{AuthorityId as GrandpaId, fg_primitives};
#[cfg(any(feature = "std", test))]
use sp_version::NativeVersion;
use sp_core::OpaqueMetadata;
use sp_staking::SessionIndex;
use frame_support::{
	parameter_types, construct_runtime, RuntimeDebug,
	traits::{KeyOwnerProofSystem, Randomness, Filter, InstanceFilter, All},
	weights::Weight,
};
use pallet_im_online::sr25519::AuthorityId as ImOnlineId;
use authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
use pallet_transaction_payment::{FeeDetails, RuntimeDispatchInfo};
use pallet_session::historical as session_historical;
use frame_system::{EnsureRoot};
use beefy_primitives::ecdsa::AuthorityId as BeefyId;
use pallet_mmr_primitives as mmr;

#[cfg(feature = "std")]
pub use pallet_staking::StakerStatus;
#[cfg(any(feature = "std", test))]
pub use sp_runtime::BuildStorage;
pub use pallet_timestamp::Call as TimestampCall;
pub use pallet_balances::Call as BalancesCall;

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

// Weights used in the runtime
mod weights;

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

/// Runtime version (Westend).
pub const VERSION: RuntimeVersion = RuntimeVersion {
	spec_name: create_runtime_str!("westend"),
	impl_name: create_runtime_str!("parity-westend"),
	authoring_version: 2,
	spec_version: 900,
	impl_version: 0,
	#[cfg(not(feature = "disable-runtime-api"))]
	apis: RUNTIME_API_VERSIONS,
	#[cfg(feature = "disable-runtime-api")]
	apis: version::create_apis_vec![[]],
	transaction_version: 5,
};

/// 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(),
	}
}

/// Avoid processing transactions from slots and parachain registrar except by root.
pub struct BaseFilter;
impl Filter<Call> for BaseFilter {
	fn filter(c: &Call) -> bool {
		!matches!(c,
			Call::Registrar(..) |
			Call::Slots(..)
		)
	}
}

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

impl frame_system::Config for Runtime {
	type BaseCallFilter = BaseFilter;
	type BlockWeights = BlockWeights;
	type BlockLength = BlockLength;
	type Origin = Origin;
	type Call = Call;
	type Index = Nonce;
	type BlockNumber = BlockNumber;
	type Hash = Hash;
	type Hashing = BlakeTwo256;
	type AccountId = AccountId;
	type Lookup = AccountIdLookup<AccountId, ()>;
	type Header = generic::Header<BlockNumber, BlakeTwo256>;
	type Event = Event;
	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 = ();
}

parameter_types! {
	pub MaximumSchedulerWeight: Weight = Perbill::from_percent(80) *
		BlockWeights::get().max_block;
	pub const MaxScheduledPerBlock: u32 = 50;
}

impl pallet_scheduler::Config for Runtime {
	type Event = Event;
	type Origin = Origin;
	type PalletsOrigin = OriginCaller;
	type Call = Call;
	type MaximumWeight = MaximumSchedulerWeight;
	type ScheduleOrigin = EnsureRoot<AccountId>;
	type MaxScheduledPerBlock = MaxScheduledPerBlock;
	type WeightInfo = weights::pallet_scheduler::WeightInfo<Runtime>;
}

parameter_types! {
	pub const EpochDuration: u64 = EPOCH_DURATION_IN_SLOTS 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 KeyOwnerProofSystem = Historical;

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

	type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(
		KeyTypeId,
		pallet_babe::AuthorityId,
	)>>::IdentificationTuple;

	type HandleEquivocation =
		pallet_babe::EquivocationHandler<Self::KeyOwnerIdentification, Offences, ReportLongevity>;

	type WeightInfo = ();
}

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

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

parameter_types! {
	pub const ExistentialDeposit: Balance = 1 * CENTS;
	pub const MaxLocks: u32 = 50;
}

impl pallet_balances::Config for Runtime {
	type Balance = Balance;
	type DustRemoval = ();
	type Event = Event;
	type ExistentialDeposit = ExistentialDeposit;
	type AccountStore = System;
	type MaxLocks = MaxLocks;
	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
}

parameter_types! {
	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
}

impl pallet_transaction_payment::Config for Runtime {
	type OnChargeTransaction = CurrencyAdapter<Balances, ToAuthor<Runtime>>;
	type TransactionByteFee = TransactionByteFee;
	type WeightToFee = WeightToFee;
	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>;
}

parameter_types! {
	pub const UncleGenerations: u32 = 0;
}

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

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

impl_opaque_keys! {
	pub struct SessionKeys {
		pub grandpa: Grandpa,
		pub babe: Babe,
		pub im_online: ImOnline,
		pub para_validator: ParachainSessionKeyPlaceholder<Runtime>,
		pub para_assignment: AssignmentSessionKeyPlaceholder<Runtime>,
		pub authority_discovery: AuthorityDiscovery,
	}
}

parameter_types! {
	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
}

impl pallet_session::Config for Runtime {
	type Event = Event;
	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 DisabledValidatorsThreshold = DisabledValidatorsThreshold;
	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>;
}

parameter_types! {
	// no signed phase for now, just unsigned.
	pub const SignedPhase: u32 = 0;
	pub const UnsignedPhase: u32 = EPOCH_DURATION_IN_SLOTS / 4;

	// fallback: run election on-chain.
	pub const Fallback: pallet_election_provider_multi_phase::FallbackStrategy =
		pallet_election_provider_multi_phase::FallbackStrategy::OnChain;

	pub SolutionImprovementThreshold: Perbill = Perbill::from_rational(5u32, 10_000);

	// miner configs
	pub const MinerMaxIterations: u32 = 10;
	pub OffchainRepeat: BlockNumber = 5;
}

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

impl pallet_election_provider_multi_phase::Config for Runtime {
	type Event = Event;
	type Currency = Balances;
	type SignedPhase = SignedPhase;
	type UnsignedPhase = UnsignedPhase;
	type SolutionImprovementThreshold = SolutionImprovementThreshold;
	type MinerMaxIterations = MinerMaxIterations;
	type MinerMaxWeight = OffchainSolutionWeightLimit; // For now use the one from staking.
	type MinerMaxLength = OffchainSolutionLengthLimit;
	type OffchainRepeat = OffchainRepeat;
	type MinerTxPriority = NposSolutionPriority;
	type DataProvider = Staking;
	type OnChainAccuracy = Perbill;
	type CompactSolution = NposCompactSolution16;
	type Fallback = Fallback;
	type BenchmarkingConfig = ();
	type WeightInfo = weights::pallet_election_provider_multi_phase::WeightInfo<Runtime>;
}

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 = 6;
	// 28 eras for unbonding (7 days).
	pub const BondingDuration: pallet_staking::EraIndex = 28;
	// 27 eras in which slashes can be cancelled (slightly less than 7 days).
	pub const SlashDeferDuration: pallet_staking::EraIndex = 27;
	pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
	pub const MaxNominatorRewardedPerValidator: u32 = 64;
}

impl pallet_staking::Config for Runtime {
	const MAX_NOMINATIONS: u32 = <NposCompactSolution16 as sp_npos_elections::CompactSolution>::LIMIT as u32;
	type Currency = Balances;
	type UnixTime = Timestamp;
	type CurrencyToVote = CurrencyToVote;
	type RewardRemainder = ();
	type Event = Event;
	type Slash = ();
	type Reward = ();
	type SessionsPerEra = SessionsPerEra;
	type BondingDuration = BondingDuration;
	type SlashDeferDuration = SlashDeferDuration;
	// A majority of the council can cancel the slash.
	type SlashCancelOrigin = EnsureRoot<AccountId>;
	type SessionInterface = Self;
	type EraPayout = pallet_staking::ConvertCurve<RewardCurve>;
	type MaxNominatorRewardedPerValidator = MaxNominatorRewardedPerValidator;
	type NextNewSession = Session;
	type ElectionProvider = ElectionProviderMultiPhase;
	type WeightInfo = weights::pallet_staking::WeightInfo<Runtime>;
}

parameter_types! {
	pub const LaunchPeriod: BlockNumber = 7 * DAYS;
	pub const VotingPeriod: BlockNumber = 7 * DAYS;
	pub const FastTrackVotingPeriod: BlockNumber = 3 * HOURS;
	pub const MinimumDeposit: Balance = 100 * CENTS;
	pub const EnactmentPeriod: BlockNumber = 8 * DAYS;
	pub const CooloffPeriod: BlockNumber = 7 * DAYS;
	// One cent: $10,000 / MB
	pub const PreimageByteDeposit: Balance = 10 * MILLICENTS;
	pub const InstantAllowed: bool = true;
}

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

impl pallet_authority_discovery::Config for Runtime {}

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 Event = Event;
	type ValidatorSet = Historical;
	type NextSessionRotation = Babe;
	type ReportUnresponsiveness = Offences;
	type UnsignedPriority = ImOnlineUnsignedPriority;
	type WeightInfo = weights::pallet_im_online::WeightInfo<Runtime>;
}

impl pallet_grandpa::Config for Runtime {
	type Event = Event;
	type Call = Call;

	type KeyOwnerProofSystem = Historical;

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

	type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(
		KeyTypeId,
		GrandpaId,
	)>>::IdentificationTuple;

	type HandleEquivocation =
		pallet_grandpa::EquivocationHandler<Self::KeyOwnerIdentification, Offences, ReportLongevity>;

	type WeightInfo = ();
}

/// 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
	Call: From<LocalCall>,
{
	fn create_transaction<C: frame_system::offchain::AppCrypto<Self::Public, Self::Signature>>(
		call: Call,
		public: <Signature as Verify>::Signer,
		account: AccountId,
		nonce: <Runtime as frame_system::Config>::Index,
	) -> Option<(Call, <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::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
	Call: From<C>,
{
	type OverarchingCall = Call;
	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 Event = Event;
	type Currency = Balances;
	type Slashed = ();
	type BasicDeposit = BasicDeposit;
	type FieldDeposit = FieldDeposit;
	type SubAccountDeposit = SubAccountDeposit;
	type MaxSubAccounts = MaxSubAccounts;
	type MaxAdditionalFields = MaxAdditionalFields;
	type MaxRegistrars = MaxRegistrars;
	type RegistrarOrigin = frame_system::EnsureRoot<AccountId>;
	type ForceOrigin = frame_system::EnsureRoot<AccountId>;
	type WeightInfo = weights::pallet_identity::WeightInfo<Runtime>;
}

impl pallet_utility::Config for Runtime {
	type Event = Event;
	type Call = Call;
	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: u16 = 100;
}

impl pallet_multisig::Config for Runtime {
	type Event = Event;
	type Call = Call;
	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 Event = Event;
	type Call = Call;
	type Currency = Balances;
	type ConfigDepositBase = ConfigDepositBase;
	type FriendDepositFactor = FriendDepositFactor;
	type MaxFriends = MaxFriends;
	type RecoveryDeposit = RecoveryDeposit;
}

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

impl pallet_vesting::Config for Runtime {
	type Event = Event;
	type Currency = Balances;
	type BlockNumberToBalance = ConvertInto;
	type MinVestedTransfer = MinVestedTransfer;
	type WeightInfo = weights::pallet_vesting::WeightInfo<Runtime>;
}

impl pallet_sudo::Config for Runtime {
	type Event = Event;
	type Call = Call;
}

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)]
pub enum ProxyType {
	Any,
	NonTransfer,
	Staking,
	SudoBalances,
	IdentityJudgement,
	CancelProxy,
}
impl Default for ProxyType { fn default() -> Self { Self::Any } }
impl InstanceFilter<Call> for ProxyType {
	fn filter(&self, c: &Call) -> bool {
		match self {
			ProxyType::Any => true,
			ProxyType::NonTransfer => matches!(c,
				Call::System(..) |
				Call::Babe(..) |
				Call::Timestamp(..) |
				Call::Indices(pallet_indices::Call::claim(..)) |
				Call::Indices(pallet_indices::Call::free(..)) |
				Call::Indices(pallet_indices::Call::freeze(..)) |
				// Specifically omitting Indices `transfer`, `force_transfer`
				// Specifically omitting the entire Balances pallet
				Call::Authorship(..) |
				Call::Staking(..) |
				Call::Offences(..) |
				Call::Session(..) |
				Call::Grandpa(..) |
				Call::ImOnline(..) |
				Call::AuthorityDiscovery(..) |
				Call::Utility(..) |
				Call::Identity(..) |
				Call::Recovery(pallet_recovery::Call::as_recovered(..)) |
				Call::Recovery(pallet_recovery::Call::vouch_recovery(..)) |
				Call::Recovery(pallet_recovery::Call::claim_recovery(..)) |
				Call::Recovery(pallet_recovery::Call::close_recovery(..)) |
				Call::Recovery(pallet_recovery::Call::remove_recovery(..)) |
				Call::Recovery(pallet_recovery::Call::cancel_recovered(..)) |
				// Specifically omitting Recovery `create_recovery`, `initiate_recovery`
				Call::Vesting(pallet_vesting::Call::vest(..)) |
				Call::Vesting(pallet_vesting::Call::vest_other(..)) |
				// Specifically omitting Vesting `vested_transfer`, and `force_vested_transfer`
				Call::Scheduler(..) |
				// Specifically omitting Sudo pallet
				Call::Proxy(..) |
				Call::Multisig(..)
			),
			ProxyType::Staking => matches!(c,
				Call::Staking(..) |
				Call::Session(..) |
				Call::Utility(..)
			),
			ProxyType::SudoBalances => match c {
				Call::Sudo(pallet_sudo::Call::sudo(ref x)) => matches!(x.as_ref(), &Call::Balances(..)),
				Call::Utility(..) => true,
				_ => false,
			},
			ProxyType::IdentityJudgement => matches!(c,
				Call::Identity(pallet_identity::Call::provide_judgement(..)) |
				Call::Utility(..)
			),
			ProxyType::CancelProxy => matches!(c,
				Call::Proxy(pallet_proxy::Call::reject_announcement(..))
			)
		}
	}
	fn is_superset(&self, o: &Self) -> bool {
		match (self, o) {
			(x, y) if x == y => true,
			(ProxyType::Any, _) => true,
			(_, ProxyType::Any) => false,
			(ProxyType::NonTransfer, _) => true,
			_ => false,
		}
	}
}

impl pallet_proxy::Config for Runtime {
	type Event = Event;
	type Call = Call;
	type Currency = Balances;
	type ProxyType = ProxyType;
	type ProxyDepositBase = ProxyDepositBase;
	type ProxyDepositFactor = ProxyDepositFactor;
	type MaxProxies = MaxProxies;
	type WeightInfo = weights::pallet_proxy::WeightInfo<Runtime>;
	type MaxPending = MaxPending;
	type CallHasher = BlakeTwo256;
	type AnnouncementDepositBase = AnnouncementDepositBase;
	type AnnouncementDepositFactor = AnnouncementDepositFactor;
}

impl parachains_origin::Config for Runtime {}

impl parachains_configuration::Config for Runtime {}

impl parachains_shared::Config for Runtime {}

impl parachains_session_info::Config for Runtime {}

impl parachains_inclusion::Config for Runtime {
	type Event = Event;
	type RewardValidators = parachains_reward_points::RewardValidatorsWithEraPoints<Runtime>;
}

impl parachains_paras::Config for Runtime {
	type Origin = Origin;
	type Event = Event;
}

parameter_types! {
	pub const FirstMessageFactorPercent: u64 = 100;
}

impl parachains_ump::Config for Runtime {
	type UmpSink = crate::parachains_ump::XcmSink<XcmExecutor<XcmConfig>, Call>;
	type FirstMessageFactorPercent = FirstMessageFactorPercent;
}

impl parachains_dmp::Config for Runtime {}

impl parachains_hrmp::Config for Runtime {
	type Event = Event;
	type Origin = Origin;
	type Currency = Balances;
}

impl parachains_paras_inherent::Config for Runtime {}

impl parachains_scheduler::Config for Runtime {}

impl parachains_initializer::Config for Runtime {
	type Randomness = pallet_babe::RandomnessFromOneEpochAgo<Runtime>;
	type ForceOrigin = EnsureRoot<AccountId>;
}

impl paras_sudo_wrapper::Config for Runtime {}

parameter_types! {
	pub const ParaDeposit: Balance = 2000 * CENTS;
	pub const DataDepositPerByte: Balance = deposit(0, 1);
	pub const MaxCodeSize: u32 = 5 * 1024 * 1024; // 10 MB
	pub const MaxHeadSize: u32 = 20 * 1024; // 20 KB
}

impl paras_registrar::Config for Runtime {
	type Event = Event;
	type Origin = Origin;
	type Currency = Balances;
	type OnSwap = Slots;
	type ParaDeposit = ParaDeposit;
	type DataDepositPerByte = DataDepositPerByte;
	type MaxCodeSize = MaxCodeSize;
	type MaxHeadSize = MaxHeadSize;
	type WeightInfo = weights::runtime_common_paras_registrar::WeightInfo<Runtime>;
}

parameter_types! {
	pub const LeasePeriod: BlockNumber = 28 * DAYS;
}

impl slots::Config for Runtime {
	type Event = Event;
	type Currency = Balances;
	type Registrar = Registrar;
	type LeasePeriod = LeasePeriod;
	type WeightInfo = weights::runtime_common_slots::WeightInfo<Runtime>;
}

parameter_types! {
	pub const WndLocation: MultiLocation = MultiLocation::Null;
	pub const Ancestry: MultiLocation = MultiLocation::Null;
	pub WestendNetwork: NetworkId = NetworkId::Named(b"Westend".to_vec());
}

pub type LocationConverter = (
	ChildParachainConvertsVia<ParaId, AccountId>,
	AccountId32Aliases<WestendNetwork, AccountId>,
);

pub type LocalAssetTransactor =
	XcmCurrencyAdapter<
		// Use this currency:
		Balances,
		// Use this currency when it is a fungible asset matching the given location or name:
		IsConcrete<WndLocation>,
		// We can convert the MultiLocations with our converter above:
		LocationConverter,
		// Our chain's account ID type (we can't get away without mentioning it explicitly):
		AccountId,
	>;

type LocalOriginConverter = (
	SovereignSignedViaLocation<LocationConverter, Origin>,
	ChildParachainAsNative<parachains_origin::Origin, Origin>,
	SignedAccountId32AsNative<WestendNetwork, Origin>,
	ChildSystemParachainAsSuperuser<ParaId, Origin>,
);

parameter_types! {
	pub const BaseXcmWeight: Weight = 10_000_000;
}

/// The XCM router. When we want to send an XCM message, we use this type. It amalgamates all of our
/// individual routers.
pub type XcmRouter = (
	// Only one router so far - use DMP to communicate with child parachains.
	xcm_sender::ChildParachainRouter<Runtime>,
);

/// The barriers one of which must be passed for an XCM message to be executed.
pub type Barrier = (
	// Weight that is paid for may be consumed.
	TakeWeightCredit,
	// If the message is one that immediately attemps to pay for execution, then allow it.
	AllowTopLevelPaidExecutionFrom<All<MultiLocation>>,
	// Messages coming from system parachains need not pay for execution.
	AllowUnpaidExecutionFrom<IsChildSystemParachain<ParaId>>,
);

pub struct XcmConfig;
impl xcm_executor::Config for XcmConfig {
	type Call = Call;
	type XcmSender = XcmRouter;
	type AssetTransactor = LocalAssetTransactor;
	type OriginConverter = LocalOriginConverter;
	type IsReserve = ();
	type IsTeleporter = ();
	type LocationInverter = LocationInverter<Ancestry>;
	type Barrier = ();
	type Weigher = FixedWeightBounds<BaseXcmWeight, Call>;
	type Trader = UsingComponents<WeightToFee, WndLocation, AccountId, Balances, ToAuthor<Runtime>>;
	type ResponseHandler = ();
}

construct_runtime! {
	pub enum Runtime where
		Block = Block,
		NodeBlock = primitives::v1::Block,
		UncheckedExtrinsic = UncheckedExtrinsic
	{
		// Basic stuff; balances is uncallable initially.
		System: frame_system::{Pallet, Call, Storage, Config, Event<T>} = 0,
		RandomnessCollectiveFlip: pallet_randomness_collective_flip::{Pallet, Storage} = 25,

		// Must be before session.
		Babe: pallet_babe::{Pallet, Call, Storage, Config, ValidateUnsigned} = 1,

		Timestamp: pallet_timestamp::{Pallet, Call, Storage, Inherent} = 2,
		Indices: pallet_indices::{Pallet, Call, Storage, Config<T>, Event<T>} = 3,
		Balances: pallet_balances::{Pallet, Call, Storage, Config<T>, Event<T>} = 4,
		TransactionPayment: pallet_transaction_payment::{Pallet, Storage} = 26,

		// Consensus support.
		Authorship: pallet_authorship::{Pallet, Call, Storage} = 5,
		Staking: pallet_staking::{Pallet, Call, Storage, Config<T>, Event<T>} = 6,
		Offences: pallet_offences::{Pallet, Call, Storage, Event} = 7,
		Historical: session_historical::{Pallet} = 27,
		Session: pallet_session::{Pallet, Call, Storage, Event, Config<T>} = 8,
		Grandpa: pallet_grandpa::{Pallet, Call, Storage, Config, Event, ValidateUnsigned} = 10,
		ImOnline: pallet_im_online::{Pallet, Call, Storage, Event<T>, ValidateUnsigned, Config<T>} = 11,
		AuthorityDiscovery: pallet_authority_discovery::{Pallet, Call, Config} = 12,

		// Utility module.
		Utility: pallet_utility::{Pallet, Call, Event} = 16,

		// Less simple identity module.
		Identity: pallet_identity::{Pallet, Call, Storage, Event<T>} = 17,

		// Social recovery module.
		Recovery: pallet_recovery::{Pallet, Call, Storage, Event<T>} = 18,

		// Vesting. Usable initially, but removed once all vesting is finished.
		Vesting: pallet_vesting::{Pallet, Call, Storage, Event<T>, Config<T>} = 19,

		// System scheduler.
		Scheduler: pallet_scheduler::{Pallet, Call, Storage, Event<T>} = 20,

		// Sudo.
		Sudo: pallet_sudo::{Pallet, Call, Storage, Event<T>, Config<T>} = 21,

		// Proxy module. Late addition.
		Proxy: pallet_proxy::{Pallet, Call, Storage, Event<T>} = 22,

		// Multisig module. Late addition.
		Multisig: pallet_multisig::{Pallet, Call, Storage, Event<T>} = 23,

		// Election pallet. Only works with staking, but placed here to maintain indices.
		ElectionProviderMultiPhase: pallet_election_provider_multi_phase::{Pallet, Call, Storage, Event<T>, ValidateUnsigned} = 24,

		// Parachains pallets. Start indices at 40 to leave room.
		ParachainsOrigin: parachains_origin::{Pallet, Origin} = 41,
		ParachainsConfiguration: parachains_configuration::{Pallet, Call, Storage, Config<T>} = 42,
		ParasShared: parachains_shared::{Pallet, Call, Storage} = 43,
		ParasInclusion: parachains_inclusion::{Pallet, Call, Storage, Event<T>} = 44,
		ParasInherent: parachains_paras_inherent::{Pallet, Call, Storage, Inherent} = 45,
		ParasScheduler: parachains_scheduler::{Pallet, Call, Storage} = 46,
		Paras: parachains_paras::{Pallet, Call, Storage, Event} = 47,
		ParasInitializer: parachains_initializer::{Pallet, Call, Storage} = 48,
		ParasDmp: parachains_dmp::{Pallet, Call, Storage} = 49,
		ParasUmp: parachains_ump::{Pallet, Call, Storage} = 50,
		ParasHrmp: parachains_hrmp::{Pallet, Call, Storage, Event} = 51,
		ParasSessionInfo: parachains_session_info::{Pallet, Call, Storage} = 52,

		// Parachain Onboarding Pallets. Start indices at 60 to leave room.
		Registrar: paras_registrar::{Pallet, Call, Storage, Event<T>} = 60,
		Slots: slots::{Pallet, Call, Storage, Event<T>} = 61,
		ParasSudoWrapper: paras_sudo_wrapper::{Pallet, Call} = 62,
	}
}

pub struct ParachainHostConfigurationMigration;
impl frame_support::traits::OnRuntimeUpgrade for ParachainHostConfigurationMigration {
	fn on_runtime_upgrade() -> frame_support::weights::Weight {
		let config = parachains_configuration::HostConfiguration {
			max_code_size: MaxCodeSize::get(),
			max_head_data_size: MaxHeadSize::get(),
			max_upward_queue_count: 10,
			max_upward_queue_size: 50 * 1024,
			max_upward_message_size: 50 * 1024,
			max_upward_message_num_per_candidate: 10,
			hrmp_max_message_num_per_candidate: 10,
			validation_upgrade_frequency: 1 * DAYS,
			validation_upgrade_delay: EPOCH_DURATION_IN_SLOTS,
			max_pov_size: 5 * 1024 * 1024,
			max_downward_message_size: 50 * 1024,
			preferred_dispatchable_upward_messages_step_weight: 0,
			hrmp_max_parachain_outbound_channels: 10,
			hrmp_max_parathread_outbound_channels: 0,
			hrmp_open_request_ttl: 2,
			hrmp_sender_deposit: deposit(1004, 100 * 1024),
			hrmp_recipient_deposit: deposit(1004, 100 * 1024),
			hrmp_channel_max_capacity: 1000,
			hrmp_channel_max_total_size: 100 * 1024,
			hrmp_max_parachain_inbound_channels: 10,
			hrmp_max_parathread_inbound_channels: 0,
			hrmp_channel_max_message_size: 100 * 1024,
			code_retention_period: 2 * DAYS,
			parathread_cores: 0,
			parathread_retries: 0,
			group_rotation_frequency: 1 * MINUTES,
			chain_availability_period: MINUTES / 2,
			thread_availability_period: MINUTES / 2,
			scheduling_lookahead: 1,
			max_validators_per_core: Some(5),
			max_validators: Some(200),
			dispute_period: 6,
			dispute_post_conclusion_acceptance_period: 1 * HOURS,
			dispute_max_spam_slots: 2,
			dispute_conclusion_by_time_out_period: 1 * HOURS,
			no_show_slots: 2,
			n_delay_tranches: 40,
			zeroth_delay_tranche_width: 0,
			needed_approvals: 15,
			relay_vrf_modulo_samples: 1,
		};

		ParachainsConfiguration::force_set_active_config(config);
		RocksDbWeight::get().writes(1)
	}
}

/// The address format for describing accounts.
pub type Address = sp_runtime::MultiAddress<AccountId, ()>;
/// Block header type as expected by this runtime.
pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
/// Block type as expected by this runtime.
pub type Block = generic::Block<Header, UncheckedExtrinsic>;
/// A Block signed with a Justification
pub type SignedBlock = generic::SignedBlock<Block>;
/// BlockId type as expected by this runtime.
pub type BlockId = generic::BlockId<Block>;
/// The SignedExtension to the basic transaction logic.
pub type SignedExtra = (