lib.rs

// Copyright 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 Rococo runtime for v1 parachains.

#![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 authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
use beefy_primitives::{
	crypto::AuthorityId as BeefyId,
	mmr::{BeefyDataProvider, MmrLeafVersion},
};
use frame_support::{
	construct_runtime, parameter_types,
	traits::{Contains, InstanceFilter, KeyOwnerProofSystem},
	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::v2::{
	AccountId, AccountIndex, Balance, BlockNumber, CandidateEvent, CandidateHash,
	CommittedCandidateReceipt, CoreState, DisputeState, GroupRotationInfo, Hash, Id as ParaId,
	InboundDownwardMessage, InboundHrmpMessage, Moment, Nonce, OccupiedCoreAssumption,
	PersistedValidationData, PvfCheckStatement, ScrapedOnChainVotes, SessionInfo, Signature,
	ValidationCode, ValidationCodeHash, ValidatorId, ValidatorIndex, ValidatorSignature,
};
use runtime_common::{
	assigned_slots, auctions, crowdloan, impl_runtime_weights, impls::ToAuthor, paras_registrar,
	paras_sudo_wrapper, slots, BlockHashCount, BlockLength, SlowAdjustingFeeUpdate,
};
use runtime_parachains::{self, runtime_api_impl::v2 as runtime_api_impl};
use scale_info::TypeInfo;
use sp_core::{OpaqueMetadata, RuntimeDebug, H256};
use sp_mmr_primitives as mmr;
use sp_runtime::{
	create_runtime_str, generic, impl_opaque_keys,
	traits::{
		AccountIdLookup, BlakeTwo256, Block as BlockT, Extrinsic as ExtrinsicT, Keccak256,
		OpaqueKeys, SaturatedConversion, Verify,
	},
	transaction_validity::{TransactionPriority, TransactionSource, TransactionValidity},
	ApplyExtrinsicResult, FixedU128, KeyTypeId,
};
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 runtime_parachains::{
	configuration as parachains_configuration, disputes as parachains_disputes,
	dmp as parachains_dmp, hrmp as parachains_hrmp, inclusion as parachains_inclusion,
	initializer as parachains_initializer, origin as parachains_origin, paras as parachains_paras,
	paras_inherent as parachains_paras_inherent, scheduler as parachains_scheduler,
	session_info as parachains_session_info, shared as parachains_shared, ump as parachains_ump,
};

use bridge_runtime_common::messages::{
	source::estimate_message_dispatch_and_delivery_fee, MessageBridge,
};

pub use frame_system::Call as SystemCall;

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

mod bridge_messages;
mod validator_manager;
mod weights;
pub mod xcm_config;

impl_runtime_weights!(rococo_runtime_constants);

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

/// Runtime version (Rococo).
#[sp_version::runtime_version]
pub const VERSION: RuntimeVersion = RuntimeVersion {
	spec_name: create_runtime_str!("rococo"),
	impl_name: create_runtime_str!("parity-rococo-v2.0"),
	authoring_version: 0,
	spec_version: 9230,
	impl_version: 0,
	#[cfg(not(feature = "disable-runtime-api"))]
	apis: RUNTIME_API_VERSIONS,
	#[cfg(feature = "disable-runtime-api")]
	apis: sp_version::create_apis_vec![[]],
	transaction_version: 0,
	state_version: 0,
};

/// 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() }
}

/// 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 = (
	frame_system::CheckNonZeroSender<Runtime>,
	frame_system::CheckSpecVersion<Runtime>,
	frame_system::CheckTxVersion<Runtime>,
	frame_system::CheckGenesis<Runtime>,
	frame_system::CheckMortality<Runtime>,
	frame_system::CheckNonce<Runtime>,
	frame_system::CheckWeight<Runtime>,
	pallet_transaction_payment::ChargeTransactionPayment<Runtime>,
);

/// Unchecked extrinsic type as expected by this runtime.
pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;
/// Executive: handles dispatch to the various modules.
pub type Executive = frame_executive::Executive<
	Runtime,
	Block,
	frame_system::ChainContext<Runtime>,
	Runtime,
	AllPalletsWithSystem,
>;
/// The payload being signed in transactions.
pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;

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,
	}
}

construct_runtime! {
	pub enum Runtime where
		Block = Block,
		NodeBlock = primitives::v2::Block,
		UncheckedExtrinsic = UncheckedExtrinsic
	{
		System: frame_system,

		// Babe must be before session.
		Babe: pallet_babe,

		Timestamp: pallet_timestamp,
		Indices: pallet_indices,
		Balances: pallet_balances,
		TransactionPayment: pallet_transaction_payment,

		// Consensus support.
		// Authorship must be before session in order to note author in the correct session for
		// im-online.
		Authorship: pallet_authorship,
		Offences: pallet_offences,
		Historical: session_historical,
		Session: pallet_session,
		Grandpa: pallet_grandpa,
		ImOnline: pallet_im_online,
		AuthorityDiscovery: pallet_authority_discovery,

		// Parachains modules.
		ParachainsOrigin: parachains_origin,
		Configuration: parachains_configuration,
		ParasShared: parachains_shared,
		ParaInclusion: parachains_inclusion,
		ParaInherent: parachains_paras_inherent,
		ParaScheduler: parachains_scheduler,
		Paras: parachains_paras,
		Initializer: parachains_initializer,
		Dmp: parachains_dmp,
		Ump: parachains_ump,
		Hrmp: parachains_hrmp,
		ParaSessionInfo: parachains_session_info,
		ParasDisputes: parachains_disputes,

		// Parachain Onboarding Pallets
		Registrar: paras_registrar::{Pallet, Call, Storage, Event<T>, Config},
		Auctions: auctions::{Pallet, Call, Storage, Event<T>},
		Crowdloan: crowdloan::{Pallet, Call, Storage, Event<T>},
		Slots: slots::{Pallet, Call, Storage, Event<T>},
		ParasSudoWrapper: paras_sudo_wrapper::{Pallet, Call},
		AssignedSlots: assigned_slots::{Pallet, Call, Storage, Event<T>},

		// Sudo
		Sudo: pallet_sudo,

		// Bridges support.
		Mmr: pallet_mmr,
		Beefy: pallet_beefy,
		MmrLeaf: pallet_beefy_mmr,

		// Validator Manager pallet.
		ValidatorManager: validator_manager,

		// It might seem strange that we add both sides of the bridge to the same runtime. We do this because this
		// runtime as shared by both the Rococo and Wococo chains. When running as Rococo we only use
		// `BridgeWococoGrandpa`, and vice versa.
		BridgeRococoGrandpa: pallet_bridge_grandpa::{Pallet, Call, Storage, Config<T>} = 40,
		BridgeWococoGrandpa: pallet_bridge_grandpa::<Instance1>::{Pallet, Call, Storage, Config<T>} = 41,

		// Bridge messages support. The same story as with the bridge grandpa pallet above ^^^ - when we're
		// running as Rococo we only use `BridgeWococoMessages`/`BridgeWococoMessagesDispatch`, and vice versa.
		BridgeRococoMessages: pallet_bridge_messages::{Pallet, Call, Storage, Event<T>, Config<T>} = 43,
		BridgeWococoMessages: pallet_bridge_messages::<Instance1>::{Pallet, Call, Storage, Event<T>, Config<T>} = 44,
		BridgeRococoMessagesDispatch: pallet_bridge_dispatch::{Pallet, Event<T>} = 45,
		BridgeWococoMessagesDispatch: pallet_bridge_dispatch::<Instance1>::{Pallet, Event<T>} = 46,

		// A "council"
		Collective: pallet_collective = 80,
		Membership: pallet_membership = 81,

		Utility: pallet_utility = 90,
		Proxy: pallet_proxy = 91,
		Multisig: pallet_multisig,

		// Pallet for sending XCM.
		XcmPallet: pallet_xcm = 99,

	}
}

pub struct BaseFilter;
impl Contains<Call> for BaseFilter {
	fn contains(_call: &Call) -> bool {
		true
	}
}

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 DbWeight = RocksDbWeight;
	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 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 const ValidationUpgradeFrequency: BlockNumber = 2 * DAYS;
	pub const ValidationUpgradeDelay: BlockNumber = 8 * HOURS;
	pub const SlashPeriod: BlockNumber = 7 * DAYS;
}

/// 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::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;
}

/// Special `FullIdentificationOf` implementation that is returning for every input `Some(Default::default())`.
pub struct FullIdentificationOf;
impl sp_runtime::traits::Convert<AccountId, Option<()>> for FullIdentificationOf {
	fn convert(_: AccountId) -> Option<()> {
		Some(Default::default())
	}
}

impl pallet_session::historical::Config for Runtime {
	type FullIdentification = ();
	type FullIdentificationOf = FullIdentificationOf;
}

impl parachains_disputes::Config for Runtime {
	type Event = Event;
	type RewardValidators = ();
	type PunishValidators = ();
	type WeightInfo = weights::runtime_parachains_disputes::WeightInfo<Runtime>;
}

parameter_types! {
	pub SessionDuration: BlockNumber = EpochDurationInBlocks::get() as _;
}

parameter_types! {
	pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
	pub const MaxKeys: u32 = 10_000;
	pub const MaxPeerInHeartbeats: u32 = 10_000;
	pub const MaxPeerDataEncodingSize: u32 = 1_000;
}

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>;
	type MaxKeys = MaxKeys;
	type MaxPeerInHeartbeats = MaxPeerInHeartbeats;
	type MaxPeerDataEncodingSize = MaxPeerDataEncodingSize;
}

parameter_types! {
	pub const ExistentialDeposit: Balance = 1 * CENTS;
	pub const MaxLocks: u32 = 50;
	pub const MaxReserves: 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 MaxReserves = MaxReserves;
	type ReserveIdentifier = [u8; 8];
	type WeightInfo = weights::pallet_balances::WeightInfo<Runtime>;
}

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

parameter_types! {
	pub const MaxRetries: u32 = 3;
	pub const MaxAuthorities: u32 = 100_000;
}

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

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

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 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 OnChargeTransaction = CurrencyAdapter<Balances, ToAuthor<Runtime>>;
	type OperationalFeeMultiplier = OperationalFeeMultiplier;
	type WeightToFee = WeightToFee;
	type LengthToFee = frame_support::weights::ConstantMultiplier<Balance, TransactionByteFee>;
	type FeeMultiplierUpdate = SlowAdjustingFeeUpdate<Self>;
}

/// Special `ValidatorIdOf` implementation that is just returning the input as result.
pub struct ValidatorIdOf;
impl sp_runtime::traits::Convert<AccountId, Option<AccountId>> for ValidatorIdOf {
	fn convert(a: AccountId) -> Option<AccountId> {
		Some(a)
	}
}

impl pallet_session::Config for Runtime {
	type Event = Event;
	type ValidatorId = AccountId;
	type ValidatorIdOf = ValidatorIdOf;
	type ShouldEndSession = Babe;
	type NextSessionRotation = Babe;
	type SessionManager = pallet_session::historical::NoteHistoricalRoot<Self, ValidatorManager>;
	type SessionHandler = <SessionKeys as OpaqueKeys>::KeyTypeIdProviders;
	type Keys = SessionKeys;
	type WeightInfo = ();
}

parameter_types! {
	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
	pub ReportLongevity: u64 = EpochDurationInBlocks::get() as u64 * 10;
}

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

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

	type DisabledValidators = Session;

	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 = ();

	type MaxAuthorities = MaxAuthorities;
}

parameter_types! {
	pub const IndexDeposit: Balance = 1 * DOLLARS;
}

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 AttestationPeriod: BlockNumber = 50;
}

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 = ();
	type MaxAuthorities = MaxAuthorities;
}

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 = ImOnline;
}

impl parachains_origin::Config for Runtime {}

impl parachains_configuration::Config for Runtime {
	type WeightInfo = weights::runtime_parachains_configuration::WeightInfo<Runtime>;
}

impl parachains_shared::Config for Runtime {}

/// Special `RewardValidators` that does nothing ;)
pub struct RewardValidators;
impl runtime_parachains::inclusion::RewardValidators for RewardValidators {
	fn reward_backing(_: impl IntoIterator<Item = ValidatorIndex>) {}
	fn reward_bitfields(_: impl IntoIterator<Item = ValidatorIndex>) {}
}

impl parachains_inclusion::Config for Runtime {
	type Event = Event;
	type DisputesHandler = ParasDisputes;
	type RewardValidators = RewardValidators;
}

parameter_types! {
	pub const ParasUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
}

impl parachains_paras::Config for Runtime {
	type Event = Event;
	type WeightInfo = weights::runtime_parachains_paras::WeightInfo<Runtime>;
	type UnsignedPriority = ParasUnsignedPriority;
	type NextSessionRotation = Babe;
}

impl parachains_session_info::Config for Runtime {
	type ValidatorSet = Historical;
}

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

impl parachains_ump::Config for Runtime {
	type Event = Event;
	type UmpSink =
		crate::parachains_ump::XcmSink<xcm_executor::XcmExecutor<xcm_config::XcmConfig>, Runtime>;
	type FirstMessageFactorPercent = FirstMessageFactorPercent;
	type ExecuteOverweightOrigin = EnsureRoot<AccountId>;
	type WeightInfo = weights::runtime_parachains_ump::WeightInfo<Runtime>;
}

impl parachains_dmp::Config for Runtime {}

impl parachains_hrmp::Config for Runtime {
	type Event = Event;
	type Origin = Origin;
	type Currency = Balances;
	type WeightInfo = weights::runtime_parachains_hrmp::WeightInfo<Runtime>;
}

impl parachains_paras_inherent::Config for Runtime {
	type WeightInfo = weights::runtime_parachains_paras_inherent::WeightInfo<Runtime>;
}

impl parachains_scheduler::Config for Runtime {}

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

impl paras_sudo_wrapper::Config for Runtime {}

parameter_types! {
	pub const PermanentSlotLeasePeriodLength: u32 = 365;
	pub const TemporarySlotLeasePeriodLength: u32 = 3;
	pub const MaxPermanentSlots: u32 = 25;
	pub const MaxTemporarySlots: u32 = 20;
	pub const MaxTemporarySlotPerLeasePeriod: u32 = 5;
}

impl assigned_slots::Config for Runtime {
	type Event = Event;
	type AssignSlotOrigin = EnsureRoot<AccountId>;
	type Leaser = Slots;
	type PermanentSlotLeasePeriodLength = PermanentSlotLeasePeriodLength;
	type TemporarySlotLeasePeriodLength = TemporarySlotLeasePeriodLength;
	type MaxPermanentSlots = MaxPermanentSlots;
	type MaxTemporarySlots = MaxTemporarySlots;
	type MaxTemporarySlotPerLeasePeriod = MaxTemporarySlotPerLeasePeriod;
}

parameter_types! {
	pub const ParaDeposit: Balance = 5 * DOLLARS;
	pub const DataDepositPerByte: Balance = deposit(0, 1);
}

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

impl pallet_beefy::Config for Runtime {
	type BeefyId = BeefyId;
	type MaxAuthorities = MaxAuthorities;
}

type MmrHash = <Keccak256 as sp_runtime::traits::Hash>::Output;

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

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);
}

pub struct ParasProvider;
impl BeefyDataProvider<H256> for ParasProvider {
	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();
		beefy_merkle_tree::merkle_root::<pallet_beefy_mmr::Pallet<Runtime>, _, _>(
			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 = ParasProvider;
}

parameter_types! {
	/// This is a pretty unscientific cap.
	///
	/// Note that once this is hit the pallet will essentially throttle incoming requests down to one
	/// call per block.
	pub const MaxRequests: u32 = 4 * HOURS as u32;

	/// Number of headers to keep.
	///
	/// Assuming the worst case of every header being finalized, we will keep headers at least for a
	/// week.
	pub const HeadersToKeep: u32 = 7 * DAYS as u32;
}

pub type RococoGrandpaInstance = ();
impl pallet_bridge_grandpa::Config for Runtime {
	type BridgedChain = bp_rococo::Rococo;
	type MaxRequests = MaxRequests;
	type HeadersToKeep = HeadersToKeep;

	type WeightInfo = pallet_bridge_grandpa::weights::MillauWeight<Runtime>;
}

pub type WococoGrandpaInstance = pallet_bridge_grandpa::Instance1;
impl pallet_bridge_grandpa::Config<WococoGrandpaInstance> for Runtime {
	type BridgedChain = bp_wococo::Wococo;
	type MaxRequests = MaxRequests;
	type HeadersToKeep = HeadersToKeep;

	type WeightInfo = pallet_bridge_grandpa::weights::MillauWeight<Runtime>;
}

// Instance that is "deployed" at Wococo chain. Responsible for dispatching Rococo -> Wococo messages.
pub type AtWococoFromRococoMessagesDispatch = ();
impl pallet_bridge_dispatch::Config<AtWococoFromRococoMessagesDispatch> for Runtime {
	type Event = Event;
	type BridgeMessageId = (bp_messages::LaneId, bp_messages::MessageNonce);
	type Call = Call;
	type CallFilter = frame_support::traits::Everything;
	type EncodedCall = bridge_messages::FromRococoEncodedCall;
	type SourceChainAccountId = bp_wococo::AccountId;
	type TargetChainAccountPublic = sp_runtime::MultiSigner;
	type TargetChainSignature = sp_runtime::MultiSignature;
	type AccountIdConverter = bp_rococo::AccountIdConverter;
}

// Instance that is "deployed" at Rococo chain. Responsible for dispatching Wococo -> Rococo messages.
pub type AtRococoFromWococoMessagesDispatch = pallet_bridge_dispatch::Instance1;
impl pallet_bridge_dispatch::Config<AtRococoFromWococoMessagesDispatch> for Runtime {
	type Event = Event;
	type BridgeMessageId = (bp_messages::LaneId, bp_messages::MessageNonce);
	type Call = Call;
	type CallFilter = frame_support::traits::Everything;
	type EncodedCall = bridge_messages::FromWococoEncodedCall;
	type SourceChainAccountId = bp_rococo::AccountId;
	type TargetChainAccountPublic = sp_runtime::MultiSigner;
	type TargetChainSignature = sp_runtime::MultiSignature;
	type AccountIdConverter = bp_wococo::AccountIdConverter;
}

parameter_types! {
	pub const MaxMessagesToPruneAtOnce: bp_messages::MessageNonce = 8;
	pub const MaxUnrewardedRelayerEntriesAtInboundLane: bp_messages::MessageNonce =
		bp_rococo::MAX_UNREWARDED_RELAYERS_IN_CONFIRMATION_TX;
	pub const MaxUnconfirmedMessagesAtInboundLane: bp_messages::MessageNonce =
		bp_rococo::MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX;
	pub const RootAccountForPayments: Option<AccountId> = None;
	pub const RococoChainId: bp_runtime::ChainId = bp_runtime::ROCOCO_CHAIN_ID;
	pub const WococoChainId: bp_runtime::ChainId = bp_runtime::WOCOCO_CHAIN_ID;
}

// Instance that is "deployed" at Wococo chain. Responsible for sending Wococo -> Rococo messages
// and receiving Rococo -> Wococo messages.
pub type AtWococoWithRococoMessagesInstance = ();
impl pallet_bridge_messages::Config<AtWococoWithRococoMessagesInstance> for Runtime {
	type Event = Event;
	type BridgedChainId = RococoChainId;
	type WeightInfo = pallet_bridge_messages::weights::MillauWeight<Runtime>;
	type Parameter = ();
	type MaxMessagesToPruneAtOnce = MaxMessagesToPruneAtOnce;
	type MaxUnrewardedRelayerEntriesAtInboundLane = MaxUnrewardedRelayerEntriesAtInboundLane;
	type MaxUnconfirmedMessagesAtInboundLane = MaxUnconfirmedMessagesAtInboundLane;

	type OutboundPayload = crate::bridge_messages::ToRococoMessagePayload;
	type OutboundMessageFee = bp_wococo::Balance;

	type InboundPayload = crate::bridge_messages::FromRococoMessagePayload;
	type InboundMessageFee = bp_rococo::Balance;
	type InboundRelayer = bp_rococo::AccountId;

	type AccountIdConverter = bp_wococo::AccountIdConverter;

	type TargetHeaderChain = crate::bridge_messages::RococoAtWococo;
	type LaneMessageVerifier = crate::bridge_messages::ToRococoMessageVerifier;
	type MessageDeliveryAndDispatchPayment =
		pallet_bridge_messages::instant_payments::InstantCurrencyPayments<
			Runtime,
			AtWococoWithRococoMessagesInstance,
			pallet_balances::Pallet<Runtime>,
			crate::bridge_messages::GetDeliveryConfirmationTransactionFee,
		>;
	type OnDeliveryConfirmed = ();
	type OnMessageAccepted = ();

	type SourceHeaderChain = crate::bridge_messages::RococoAtWococo;
	type MessageDispatch = crate::bridge_messages::FromRococoMessageDispatch;
}

// Instance that is "deployed" at Rococo chain. Responsible for sending Rococo -> Wococo messages
// and receiving Wococo -> Rococo messages.
pub type AtRococoWithWococoMessagesInstance = pallet_bridge_messages::Instance1;
impl pallet_bridge_messages::Config<AtRococoWithWococoMessagesInstance> for Runtime {
	type Event = Event;
	type BridgedChainId = WococoChainId;
	type WeightInfo = pallet_bridge_messages::weights::MillauWeight<Runtime>;
	type Parameter = ();
	type MaxMessagesToPruneAtOnce = MaxMessagesToPruneAtOnce;
	type MaxUnrewardedRelayerEntriesAtInboundLane = MaxUnrewardedRelayerEntriesAtInboundLane;
	type MaxUnconfirmedMessagesAtInboundLane = MaxUnconfirmedMessagesAtInboundLane;

	type OutboundPayload = crate::bridge_messages::ToWococoMessagePayload;
	type OutboundMessageFee = bp_rococo::Balance;

	type InboundPayload = crate::bridge_messages::FromWococoMessagePayload;
	type InboundMessageFee = bp_wococo::Balance;
	type InboundRelayer = bp_wococo::AccountId;

	type AccountIdConverter = bp_rococo::AccountIdConverter;

	type TargetHeaderChain = crate::bridge_messages::WococoAtRococo;
	type LaneMessageVerifier = crate::bridge_messages::ToWococoMessageVerifier;
	type MessageDeliveryAndDispatchPayment =
		pallet_bridge_messages::instant_payments::InstantCurrencyPayments<
			Runtime,
			AtRococoWithWococoMessagesInstance,
			pallet_balances::Pallet<Runtime>,
			crate::bridge_messages::GetDeliveryConfirmationTransactionFee,
		>;
	type OnDeliveryConfirmed = ();
	type OnMessageAccepted = ();

	type SourceHeaderChain = crate::bridge_messages::WococoAtRococo;
	type MessageDispatch = crate::bridge_messages::FromWococoMessageDispatch;
}

parameter_types! {
	pub const EndingPeriod: BlockNumber = 1 * HOURS;
	pub const SampleLength: BlockNumber = 1;
}

impl auctions::Config for Runtime {
	type Event = Event;
	type Leaser = Slots;
	type Registrar = Registrar;
	type EndingPeriod = EndingPeriod;
	type SampleLength = SampleLength;
	type Randomness = pallet_babe::RandomnessFromOneEpochAgo<Runtime>;
	type InitiateOrigin = EnsureRoot<AccountId>;
	type WeightInfo = weights::runtime_common_auctions::WeightInfo<Runtime>;
}

parameter_types! {
	pub const LeasePeriod: BlockNumber = 1 * DAYS;
}

impl slots::Config for Runtime {
	type Event = Event;
	type Currency = Balances;
	type Registrar = Registrar;
	type LeasePeriod = LeasePeriod;
	type LeaseOffset = ();
	type ForceOrigin = EnsureRoot<AccountId>;
	type WeightInfo = weights::runtime_common_slots::WeightInfo<Runtime>;
}

parameter_types! {
	pub const CrowdloanId: PalletId = PalletId(*b"py/cfund");
	pub const SubmissionDeposit: Balance = 100 * DOLLARS;
	pub const MinContribution: Balance = 1 * DOLLARS;
	pub const RemoveKeysLimit: u32 = 500;
	// Allow 32 bytes for an additional memo to a crowdloan.
	pub const MaxMemoLength: u8 = 32;
}

impl crowdloan::Config for Runtime {
	type Event = Event;
	type PalletId = CrowdloanId;
	type SubmissionDeposit = SubmissionDeposit;
	type MinContribution = MinContribution;
	type RemoveKeysLimit = RemoveKeysLimit;
	type Registrar = Registrar;
	type Auctioneer = Auctions;
	type MaxMemoLength = MaxMemoLength;
	type WeightInfo = weights::runtime_common_crowdloan::WeightInfo<Runtime>;
}

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

impl validator_manager::Config for Runtime {
	type Event = Event;
	type PrivilegedOrigin = EnsureRoot<AccountId>;
}

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

parameter_types! {
	// One storage item; key size 32, value size 8; .
	pub const ProxyDepositBase: Balance = 10;
	// Additional storage item size of 33 bytes.
	pub const ProxyDepositFactor: Balance = 10;
	pub const MaxProxies: u16 = 32;
	pub const AnnouncementDepositBase: Balance = 10;
	pub const AnnouncementDepositFactor: Balance = 10;
	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,
	CancelProxy,
	Auction,
}
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::CancelProxy => {
				matches!(c, Call::Proxy(pallet_proxy::Call::reject_announcement { .. }))
			},
			ProxyType::Auction => matches!(
				c,
				Call::Auctions { .. } |
					Call::Crowdloan { .. } |
					Call::Registrar { .. } |
					Call::Multisig(..) | Call::Slots { .. }
			),
		}
	}
	fn is_superset(&self, o: &Self) -> bool {
		match (self, o) {