lib.rs

#![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"]

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

use smallvec::smallvec;
use sp_api::impl_runtime_apis;
use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
use sp_runtime::{
	create_runtime_str, generic, impl_opaque_keys,
	traits::{AccountIdLookup, BlakeTwo256, Block as BlockT, IdentifyAccount, Verify},
	transaction_validity::{TransactionSource, TransactionValidity},
	ApplyExtrinsicResult, MultiSignature,
};

use sp_std::prelude::*;
#[cfg(feature = "std")]
use sp_version::NativeVersion;
use sp_version::RuntimeVersion;

use frame_support::{
	construct_runtime, match_type, parameter_types,
	traits::{Everything, Nothing},
	weights::{
		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, WEIGHT_PER_SECOND},
		DispatchClass, IdentityFee, Weight, WeightToFeeCoefficient, WeightToFeeCoefficients,
		WeightToFeePolynomial,
	},
	PalletId,
};
use frame_system::{
	limits::{BlockLength, BlockWeights},
	EnsureOneOf, EnsureRoot,
};
pub use sp_consensus_aura::sr25519::AuthorityId as AuraId;
pub use sp_runtime::{MultiAddress, Perbill, Permill};

#[cfg(any(feature = "std", test))]
pub use sp_runtime::BuildStorage;

// Polkadot Imports
use pallet_xcm::{EnsureXcm, IsMajorityOfBody, XcmPassthrough};
use polkadot_parachain::primitives::Sibling;
use polkadot_runtime_common::{BlockHashCount, RocksDbWeight, SlowAdjustingFeeUpdate};

// XCM Imports
use xcm::latest::prelude::*;
use xcm_builder::{
	AccountId32Aliases, AllowKnownQueryResponses, AllowSubscriptionsFrom,
	AllowTopLevelPaidExecutionFrom, AllowUnpaidExecutionFrom, CurrencyAdapter, EnsureXcmOrigin,
	FixedWeightBounds, IsConcrete, LocationInverter, NativeAsset, ParentIsDefault,
	RelayChainAsNative, SiblingParachainAsNative, SiblingParachainConvertsVia,
	SignedAccountId32AsNative, SovereignSignedViaLocation, TakeWeightCredit, UsingComponents,
};
use xcm_executor::{Config, XcmExecutor};

/// Import the template pallet.
pub use pallet_template;

/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.
pub type Signature = MultiSignature;

/// Some way of identifying an account on the chain. We intentionally make it equivalent
/// to the public key of our transaction signing scheme.
pub type AccountId = <<Signature as Verify>::Signer as IdentifyAccount>::AccountId;

/// Balance of an account.
pub type Balance = u128;

/// Index of a transaction in the chain.
pub type Index = u32;

/// A hash of some data used by the chain.
pub type Hash = sp_core::H256;

/// An index to a block.
pub type BlockNumber = u32;

/// The address format for describing accounts.
pub type Address = 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::CheckSpecVersion<Runtime>,
	frame_system::CheckTxVersion<Runtime>,
	frame_system::CheckGenesis<Runtime>,
	frame_system::CheckEra<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>;

/// Extrinsic type that has already been checked.
pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;

/// Executive: handles dispatch to the various modules.
pub type Executive = frame_executive::Executive<
	Runtime,
	Block,
	frame_system::ChainContext<Runtime>,
	Runtime,
	AllPallets,
	OnRuntimeUpgrade,
>;

pub struct OnRuntimeUpgrade;
impl frame_support::traits::OnRuntimeUpgrade for OnRuntimeUpgrade {
	fn on_runtime_upgrade() -> u64 {
		frame_support::migrations::migrate_from_pallet_version_to_storage_version::<
			AllPalletsWithSystem,
		>(&RocksDbWeight::get())
	}
}

/// Handles converting a weight scalar to a fee value, based on the scale and granularity of the
/// node's balance type.
///
/// This should typically create a mapping between the following ranges:
///   - `[0, MAXIMUM_BLOCK_WEIGHT]`
///   - `[Balance::min, Balance::max]`
///
/// Yet, it can be used for any other sort of change to weight-fee. Some examples being:
///   - Setting it to `0` will essentially disable the weight fee.
///   - Setting it to `1` will cause the literal `#[weight = x]` values to be charged.
pub struct WeightToFee;
impl WeightToFeePolynomial for WeightToFee {
	type Balance = Balance;
	fn polynomial() -> WeightToFeeCoefficients<Self::Balance> {
		// in Rococo, extrinsic base weight (smallest non-zero weight) is mapped to 1 MILLIUNIT:
		// in our template, we map to 1/10 of that, or 1/10 MILLIUNIT
		let p = MILLIUNIT / 10;
		let q = 100 * Balance::from(ExtrinsicBaseWeight::get());
		smallvec![WeightToFeeCoefficient {
			degree: 1,
			negative: false,
			coeff_frac: Perbill::from_rational(p % q, q),
			coeff_integer: p / q,
		}]
	}
}

/// Opaque types. These are used by the CLI to instantiate machinery that don't need to know
/// the specifics of the runtime. They can then be made to be agnostic over specific formats
/// of data like extrinsics, allowing for them to continue syncing the network through upgrades
/// to even the core data structures.
pub mod opaque {
	use super::*;
	use sp_runtime::{generic, traits::BlakeTwo256};

	pub use sp_runtime::OpaqueExtrinsic as UncheckedExtrinsic;
	/// Opaque block header type.
	pub type Header = generic::Header<BlockNumber, BlakeTwo256>;
	/// Opaque block type.
	pub type Block = generic::Block<Header, UncheckedExtrinsic>;
	/// Opaque block identifier type.
	pub type BlockId = generic::BlockId<Block>;
}

impl_opaque_keys! {
	pub struct SessionKeys {
		pub aura: Aura,
	}
}

#[sp_version::runtime_version]
pub const VERSION: RuntimeVersion = RuntimeVersion {
	spec_name: create_runtime_str!("template-parachain"),
	impl_name: create_runtime_str!("template-parachain"),
	authoring_version: 1,
	spec_version: 1,
	impl_version: 0,
	apis: RUNTIME_API_VERSIONS,
	transaction_version: 1,
};

/// This determines the average expected block time that we are targeting.
/// Blocks will be produced at a minimum duration defined by `SLOT_DURATION`.
/// `SLOT_DURATION` is picked up by `pallet_timestamp` which is in turn picked
/// up by `pallet_aura` to implement `fn slot_duration()`.
///
/// Change this to adjust the block time.
pub const MILLISECS_PER_BLOCK: u64 = 12000;

// NOTE: Currently it is not possible to change the slot duration after the chain has started.
//       Attempting to do so will brick block production.
pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;

// Time is measured by number of blocks.
pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);
pub const HOURS: BlockNumber = MINUTES * 60;
pub const DAYS: BlockNumber = HOURS * 24;

// Unit = the base number of indivisible units for balances
pub const UNIT: Balance = 1_000_000_000_000;
pub const MILLIUNIT: Balance = 1_000_000_000;
pub const MICROUNIT: Balance = 1_000_000;

/// The existential deposit. Set to 1/10 of the Rococo Relay Chain.
pub const EXISTENTIAL_DEPOSIT: Balance = MILLIUNIT;

// 1 in 4 blocks (on average, not counting collisions) will be primary babe blocks.
pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);

/// We assume that ~5% of the block weight is consumed by `on_initialize` handlers. This is
/// used to limit the maximal weight of a single extrinsic.
const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(5);

/// We allow `Normal` extrinsics to fill up the block up to 75%, the rest can be used by
/// `Operational` extrinsics.
const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);

/// We allow for 0.5 of a second of compute with a 12 second average block time.
const MAXIMUM_BLOCK_WEIGHT: Weight = WEIGHT_PER_SECOND / 2;

/// The version information used to identify this runtime when compiled natively.
#[cfg(feature = "std")]
pub fn native_version() -> NativeVersion {
	NativeVersion { runtime_version: VERSION, can_author_with: Default::default() }
}

parameter_types! {
	pub const Version: RuntimeVersion = VERSION;

	// This part is copied from Substrate's `bin/node/runtime/src/lib.rs`.
	//  The `RuntimeBlockLength` and `RuntimeBlockWeights` exist here because the
	// `DeletionWeightLimit` and `DeletionQueueDepth` depend on those to parameterize
	// the lazy contract deletion.
	pub RuntimeBlockLength: BlockLength =
		BlockLength::max_with_normal_ratio(5 * 1024 * 1024, NORMAL_DISPATCH_RATIO);
	pub RuntimeBlockWeights: BlockWeights = BlockWeights::builder()
		.base_block(BlockExecutionWeight::get())
		.for_class(DispatchClass::all(), |weights| {
			weights.base_extrinsic = ExtrinsicBaseWeight::get();
		})
		.for_class(DispatchClass::Normal, |weights| {
			weights.max_total = Some(NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT);
		})
		.for_class(DispatchClass::Operational, |weights| {
			weights.max_total = Some(MAXIMUM_BLOCK_WEIGHT);
			// Operational transactions have some extra reserved space, so that they
			// are included even if block reached `MAXIMUM_BLOCK_WEIGHT`.
			weights.reserved = Some(
				MAXIMUM_BLOCK_WEIGHT - NORMAL_DISPATCH_RATIO * MAXIMUM_BLOCK_WEIGHT
			);
		})
		.avg_block_initialization(AVERAGE_ON_INITIALIZE_RATIO)
		.build_or_panic();
	pub const SS58Prefix: u16 = 42;
}

// Configure FRAME pallets to include in runtime.

impl frame_system::Config for Runtime {
	/// The identifier used to distinguish between accounts.
	type AccountId = AccountId;
	/// The aggregated dispatch type that is available for extrinsics.
	type Call = Call;
	/// The lookup mechanism to get account ID from whatever is passed in dispatchers.
	type Lookup = AccountIdLookup<AccountId, ()>;
	/// The index type for storing how many extrinsics an account has signed.
	type Index = Index;
	/// The index type for blocks.
	type BlockNumber = BlockNumber;
	/// The type for hashing blocks and tries.
	type Hash = Hash;
	/// The hashing algorithm used.
	type Hashing = BlakeTwo256;
	/// The header type.
	type Header = generic::Header<BlockNumber, BlakeTwo256>;
	/// The ubiquitous event type.
	type Event = Event;
	/// The ubiquitous origin type.
	type Origin = Origin;
	/// Maximum number of block number to block hash mappings to keep (oldest pruned first).
	type BlockHashCount = BlockHashCount;
	/// Runtime version.
	type Version = Version;
	/// Converts a module to an index of this module in the runtime.
	type PalletInfo = PalletInfo;
	/// The data to be stored in an account.
	type AccountData = pallet_balances::AccountData<Balance>;
	/// What to do if a new account is created.
	type OnNewAccount = ();
	/// What to do if an account is fully reaped from the system.
	type OnKilledAccount = ();
	/// The weight of database operations that the runtime can invoke.
	type DbWeight = RocksDbWeight;
	/// The basic call filter to use in dispatchable.
	type BaseCallFilter = Everything;
	/// Weight information for the extrinsics of this pallet.
	type SystemWeightInfo = ();
	/// Block & extrinsics weights: base values and limits.
	type BlockWeights = RuntimeBlockWeights;
	/// The maximum length of a block (in bytes).
	type BlockLength = RuntimeBlockLength;
	/// This is used as an identifier of the chain. 42 is the generic substrate prefix.
	type SS58Prefix = SS58Prefix;
	/// The action to take on a Runtime Upgrade
	type OnSetCode = cumulus_pallet_parachain_system::ParachainSetCode<Self>;
}

parameter_types! {
	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
}

impl pallet_timestamp::Config for Runtime {
	/// A timestamp: milliseconds since the unix epoch.
	type Moment = u64;
	type OnTimestampSet = ();
	type MinimumPeriod = MinimumPeriod;
	type WeightInfo = ();
}

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

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

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 MaxLocks = MaxLocks;
	/// The type for recording an account's balance.
	type Balance = Balance;
	/// The ubiquitous event type.
	type Event = Event;
	type DustRemoval = ();
	type ExistentialDeposit = ExistentialDeposit;
	type AccountStore = System;
	type WeightInfo = pallet_balances::weights::SubstrateWeight<Runtime>;
	type MaxReserves = MaxReserves;
	type ReserveIdentifier = [u8; 8];
}

parameter_types! {
	/// Relay Chain `TransactionByteFee` / 10
	pub const TransactionByteFee: Balance = 10 * MICROUNIT;
	pub const OperationalFeeMultiplier: u8 = 5;
}

impl pallet_transaction_payment::Config for Runtime {
	type OnChargeTransaction = pallet_transaction_payment::CurrencyAdapter<Balances, ()>;
	type TransactionByteFee = TransactionByteFee;
	type WeightToFee = WeightToFee;
	type FeeMultiplierUpdate = SlowAdjustingFeeUpdate<Self>;
	type OperationalFeeMultiplier = OperationalFeeMultiplier;
}

parameter_types! {
	pub const ReservedXcmpWeight: Weight = MAXIMUM_BLOCK_WEIGHT / 4;
	pub const ReservedDmpWeight: Weight = MAXIMUM_BLOCK_WEIGHT / 4;
}

impl cumulus_pallet_parachain_system::Config for Runtime {
	type Event = Event;
	type OnValidationData = ();
	type SelfParaId = parachain_info::Pallet<Runtime>;
	type DmpMessageHandler = DmpQueue;
	type ReservedDmpWeight = ReservedDmpWeight;
	type OutboundXcmpMessageSource = XcmpQueue;
	type XcmpMessageHandler = XcmpQueue;
	type ReservedXcmpWeight = ReservedXcmpWeight;
}

impl parachain_info::Config for Runtime {}

impl cumulus_pallet_aura_ext::Config for Runtime {}

parameter_types! {
	pub const RocLocation: MultiLocation = MultiLocation::parent();
	pub const RelayNetwork: NetworkId = NetworkId::Any;
	pub RelayChainOrigin: Origin = cumulus_pallet_xcm::Origin::Relay.into();
	pub Ancestry: MultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
}

/// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
/// when determining ownership of accounts for asset transacting and when attempting to use XCM
/// `Transact` in order to determine the dispatch Origin.
pub type LocationToAccountId = (
	// The parent (Relay-chain) origin converts to the default `AccountId`.
	ParentIsDefault<AccountId>,
	// Sibling parachain origins convert to AccountId via the `ParaId::into`.
	SiblingParachainConvertsVia<Sibling, AccountId>,
	// Straight up local `AccountId32` origins just alias directly to `AccountId`.
	AccountId32Aliases<RelayNetwork, AccountId>,
);

/// Means for transacting assets on this chain.
pub type LocalAssetTransactor = CurrencyAdapter<
	// Use this currency:
	Balances,
	// Use this currency when it is a fungible asset matching the given location or name:
	IsConcrete<RocLocation>,
	// Do a simple punn to convert an AccountId32 MultiLocation into a native chain account ID:
	LocationToAccountId,
	// Our chain's account ID type (we can't get away without mentioning it explicitly):
	AccountId,
	// We don't track any teleports.
	(),
>;

/// This is the type we use to convert an (incoming) XCM origin into a local `Origin` instance,
/// ready for dispatching a transaction with Xcm's `Transact`. There is an `OriginKind` which can
/// biases the kind of local `Origin` it will become.
pub type XcmOriginToTransactDispatchOrigin = (
	// Sovereign account converter; this attempts to derive an `AccountId` from the origin location
	// using `LocationToAccountId` and then turn that into the usual `Signed` origin. Useful for
	// foreign chains who want to have a local sovereign account on this chain which they control.
	SovereignSignedViaLocation<LocationToAccountId, Origin>,
	// Native converter for Relay-chain (Parent) location; will converts to a `Relay` origin when
	// recognized.
	RelayChainAsNative<RelayChainOrigin, Origin>,
	// Native converter for sibling Parachains; will convert to a `SiblingPara` origin when
	// recognized.
	SiblingParachainAsNative<cumulus_pallet_xcm::Origin, Origin>,
	// Native signed account converter; this just converts an `AccountId32` origin into a normal
	// `Origin::Signed` origin of the same 32-byte value.
	SignedAccountId32AsNative<RelayNetwork, Origin>,
	// Xcm origins can be represented natively under the Xcm pallet's Xcm origin.
	XcmPassthrough<Origin>,
);

parameter_types! {
	// One XCM operation is 1_000_000_000 weight - almost certainly a conservative estimate.
	pub UnitWeightCost: Weight = 1_000_000_000;
	pub const MaxInstructions: u32 = 100;
}

match_type! {
	pub type ParentOrParentsExecutivePlurality: impl Contains<MultiLocation> = {
		MultiLocation { parents: 1, interior: Here } |
		MultiLocation { parents: 1, interior: X1(Plurality { id: BodyId::Executive, .. }) }
	};
}
match_type! {
	pub type ParentOrSiblings: impl Contains<MultiLocation> = {
		MultiLocation { parents: 1, interior: Here } |
		MultiLocation { parents: 1, interior: X1(_) }
	};
}

pub type Barrier = (
	TakeWeightCredit,
	AllowTopLevelPaidExecutionFrom<Everything>,
	AllowUnpaidExecutionFrom<ParentOrParentsExecutivePlurality>,
	// ^^^ Parent and its exec plurality get free execution
	// Expected responses are OK.
	AllowKnownQueryResponses<PolkadotXcm>,
	// Subscriptions for version tracking are OK.
	AllowSubscriptionsFrom<ParentOrSiblings>,
);

pub struct XcmConfig;
impl Config for XcmConfig {
	type Call = Call;
	type XcmSender = XcmRouter;
	// How to withdraw and deposit an asset.
	type AssetTransactor = LocalAssetTransactor;
	type OriginConverter = XcmOriginToTransactDispatchOrigin;
	type IsReserve = NativeAsset;
	type IsTeleporter = (); // Teleporting is disabled.
	type LocationInverter = LocationInverter<Ancestry>;
	type Barrier = Barrier;
	type Weigher = FixedWeightBounds<UnitWeightCost, Call, MaxInstructions>;
	type Trader = UsingComponents<IdentityFee<Balance>, RocLocation, AccountId, Balances, ()>;
	type ResponseHandler = PolkadotXcm;
	type AssetTrap = PolkadotXcm;
	type AssetClaims = PolkadotXcm;
	type SubscriptionService = PolkadotXcm;
}

parameter_types! {
	pub const MaxDownwardMessageWeight: Weight = MAXIMUM_BLOCK_WEIGHT / 10;
}

/// No local origins on this chain are allowed to dispatch XCM sends/executions.
pub type LocalOriginToLocation = ();

/// The means for routing XCM messages which are not for local execution into the right message
/// queues.
pub type XcmRouter = (
	// Two routers - use UMP to communicate with the relay chain:
	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm>,
	// ..and XCMP to communicate with the sibling chains.
	XcmpQueue,
);

impl pallet_xcm::Config for Runtime {
	type Event = Event;
	type SendXcmOrigin = EnsureXcmOrigin<Origin, LocalOriginToLocation>;
	type XcmRouter = XcmRouter;
	type ExecuteXcmOrigin = EnsureXcmOrigin<Origin, LocalOriginToLocation>;
	type XcmExecuteFilter = Everything;
	type XcmExecutor = XcmExecutor<XcmConfig>;
	type XcmTeleportFilter = Everything;
	type XcmReserveTransferFilter = Nothing;
	type Weigher = FixedWeightBounds<UnitWeightCost, Call, MaxInstructions>;
	type LocationInverter = LocationInverter<Ancestry>;
	type Origin = Origin;
	type Call = Call;

	const VERSION_DISCOVERY_QUEUE_SIZE: u32 = 100;
	// Override for AdvertisedXcmVersion default
	type AdvertisedXcmVersion = pallet_xcm::CurrentXcmVersion;
}

impl cumulus_pallet_xcm::Config for Runtime {
	type Event = Event;
	type XcmExecutor = XcmExecutor<XcmConfig>;
}

impl cumulus_pallet_xcmp_queue::Config for Runtime {
	type Event = Event;
	type XcmExecutor = XcmExecutor<XcmConfig>;
	type ChannelInfo = ParachainSystem;
	type VersionWrapper = PolkadotXcm;
}

impl cumulus_pallet_dmp_queue::Config for Runtime {
	type Event = Event;
	type XcmExecutor = XcmExecutor<XcmConfig>;
	type ExecuteOverweightOrigin = EnsureRoot<AccountId>;
}

parameter_types! {
	pub const Period: u32 = 6 * HOURS;
	pub const Offset: u32 = 0;
	pub const MaxAuthorities: u32 = 100_000;
}

impl pallet_session::Config for Runtime {
	type Event = Event;
	type ValidatorId = <Self as frame_system::Config>::AccountId;
	// we don't have stash and controller, thus we don't need the convert as well.
	type ValidatorIdOf = pallet_collator_selection::IdentityCollator;
	type ShouldEndSession = pallet_session::PeriodicSessions<Period, Offset>;
	type NextSessionRotation = pallet_session::PeriodicSessions<Period, Offset>;
	type SessionManager = CollatorSelection;
	// Essentially just Aura, but lets be pedantic.
	type SessionHandler = <SessionKeys as sp_runtime::traits::OpaqueKeys>::KeyTypeIdProviders;
	type Keys = SessionKeys;
	type WeightInfo = ();
}

impl pallet_aura::Config for Runtime {
	type AuthorityId = AuraId;
	type DisabledValidators = ();
	type MaxAuthorities = MaxAuthorities;
}

parameter_types! {
	pub const PotId: PalletId = PalletId(*b"PotStake");
	pub const MaxCandidates: u32 = 1000;
	pub const MinCandidates: u32 = 5;
	pub const SessionLength: BlockNumber = 6 * HOURS;
	pub const MaxInvulnerables: u32 = 100;
	pub const ExecutiveBody: BodyId = BodyId::Executive;
}

// We allow root and the Relay Chain council to execute privileged collator selection operations.
pub type CollatorSelectionUpdateOrigin = EnsureOneOf<
	AccountId,
	EnsureRoot<AccountId>,
	EnsureXcm<IsMajorityOfBody<RocLocation, ExecutiveBody>>,
>;

impl pallet_collator_selection::Config for Runtime {
	type Event = Event;
	type Currency = Balances;
	type UpdateOrigin = CollatorSelectionUpdateOrigin;
	type PotId = PotId;
	type MaxCandidates = MaxCandidates;
	type MinCandidates = MinCandidates;
	type MaxInvulnerables = MaxInvulnerables;
	// should be a multiple of session or things will get inconsistent
	type KickThreshold = Period;
	type ValidatorId = <Self as frame_system::Config>::AccountId;
	type ValidatorIdOf = pallet_collator_selection::IdentityCollator;
	type ValidatorRegistration = Session;
	type WeightInfo = ();
}

/// Configure the pallet template in pallets/template.
impl pallet_template::Config for Runtime {
	type Event = Event;
}

// Create the runtime by composing the FRAME pallets that were previously configured.
construct_runtime!(
	pub enum Runtime where
		Block = Block,
		NodeBlock = opaque::Block,
		UncheckedExtrinsic = UncheckedExtrinsic,
	{
		// System support stuff.
		System: frame_system::{Pallet, Call, Config, Storage, Event<T>} = 0,
		ParachainSystem: cumulus_pallet_parachain_system::{
			Pallet, Call, Config, Storage, Inherent, Event<T>, ValidateUnsigned,
		} = 1,
		Timestamp: pallet_timestamp::{Pallet, Call, Storage, Inherent} = 3,
		ParachainInfo: parachain_info::{Pallet, Storage, Config} = 4,

		// Monetary stuff.
		Balances: pallet_balances::{Pallet, Call, Storage, Config<T>, Event<T>} = 10,
		TransactionPayment: pallet_transaction_payment::{Pallet, Storage} = 11,

		// Collator support. The order of these 4 are important and shall not change.
		Authorship: pallet_authorship::{Pallet, Call, Storage} = 20,
		CollatorSelection: pallet_collator_selection::{Pallet, Call, Storage, Event<T>, Config<T>} = 21,
		Session: pallet_session::{Pallet, Call, Storage, Event, Config<T>} = 22,
		Aura: pallet_aura::{Pallet, Storage, Config<T>} = 23,
		AuraExt: cumulus_pallet_aura_ext::{Pallet, Storage, Config} = 24,

		// XCM helpers.
		XcmpQueue: cumulus_pallet_xcmp_queue::{Pallet, Call, Storage, Event<T>} = 30,
		PolkadotXcm: pallet_xcm::{Pallet, Call, Event<T>, Origin} = 31,
		CumulusXcm: cumulus_pallet_xcm::{Pallet, Event<T>, Origin} = 32,
		DmpQueue: cumulus_pallet_dmp_queue::{Pallet, Call, Storage, Event<T>} = 33,

		// Template
		TemplatePallet: pallet_template::{Pallet, Call, Storage, Event<T>}  = 40,
	}
);

impl_runtime_apis! {
	impl sp_consensus_aura::AuraApi<Block, AuraId> for Runtime {
		fn slot_duration() -> sp_consensus_aura::SlotDuration {
			sp_consensus_aura::SlotDuration::from_millis(Aura::slot_duration())
		}

		fn authorities() -> Vec<AuraId> {
			Aura::authorities().into_inner()
		}
	}

	impl sp_api::Core<Block> for Runtime {
		fn version() -> RuntimeVersion {
			VERSION
		}

		fn execute_block(block: Block) {
			Executive::execute_block(block)
		}

		fn initialize_block(header: &<Block as BlockT>::Header) {
			Executive::initialize_block(header)
		}
	}

	impl sp_api::Metadata<Block> for Runtime {
		fn metadata() -> OpaqueMetadata {
			OpaqueMetadata::new(Runtime::metadata().into())
		}
	}

	impl sp_block_builder::BlockBuilder<Block> for Runtime {
		fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyExtrinsicResult {
			Executive::apply_extrinsic(extrinsic)
		}

		fn finalize_block() -> <Block as BlockT>::Header {
			Executive::finalize_block()
		}

		fn inherent_extrinsics(data: sp_inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {
			data.create_extrinsics()
		}

		fn check_inherents(
			block: Block,
			data: sp_inherents::InherentData,
		) -> sp_inherents::CheckInherentsResult {
			data.check_extrinsics(&block)
		}
	}

	impl sp_transaction_pool::runtime_api::TaggedTransactionQueue<Block> for Runtime {
		fn validate_transaction(
			source: TransactionSource,
			tx: <Block as BlockT>::Extrinsic,
			block_hash: <Block as BlockT>::Hash,
		) -> TransactionValidity {
			Executive::validate_transaction(source, tx, block_hash)
		}
	}

	impl sp_offchain::OffchainWorkerApi<Block> for Runtime {
		fn offchain_worker(header: &<Block as BlockT>::Header) {
			Executive::offchain_worker(header)
		}
	}

	impl sp_session::SessionKeys<Block> for Runtime {
		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
			SessionKeys::generate(seed)
		}

		fn decode_session_keys(
			encoded: Vec<u8>,
		) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {
			SessionKeys::decode_into_raw_public_keys(&encoded)
		}
	}

	impl frame_system_rpc_runtime_api::AccountNonceApi<Block, AccountId, Index> for Runtime {
		fn account_nonce(account: AccountId) -> Index {
			System::account_nonce(account)
		}
	}

	impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi<Block, Balance> for Runtime {
		fn query_info(
			uxt: <Block as BlockT>::Extrinsic,
			len: u32,
		) -> pallet_transaction_payment_rpc_runtime_api::RuntimeDispatchInfo<Balance> {
			TransactionPayment::query_info(uxt, len)
		}
		fn query_fee_details(
			uxt: <Block as BlockT>::Extrinsic,
			len: u32,
		) -> pallet_transaction_payment::FeeDetails<Balance> {
			TransactionPayment::query_fee_details(uxt, len)
		}
	}

	impl cumulus_primitives_core::CollectCollationInfo<Block> for Runtime {
		fn collect_collation_info() -> cumulus_primitives_core::CollationInfo {
			ParachainSystem::collect_collation_info()
		}
	}


	#[cfg(feature = "runtime-benchmarks")]
	impl frame_benchmarking::Benchmark<Block> for Runtime {
		fn benchmark_metadata(extra: bool) -> (
			Vec<frame_benchmarking::BenchmarkList>,
			Vec<frame_support::traits::StorageInfo>,
		) {
			use frame_benchmarking::{list_benchmark, Benchmarking, BenchmarkList};
			use frame_support::traits::StorageInfoTrait;
			use frame_system_benchmarking::Pallet as SystemBench;
			use cumulus_pallet_session_benchmarking::Pallet as SessionBench;

			let mut list = Vec::<BenchmarkList>::new();

			list_benchmark!(list, extra, frame_system, SystemBench::<Runtime>);
			list_benchmark!(list, extra, pallet_balances, Balances);
			list_benchmark!(list, extra, pallet_session, SessionBench::<Runtime>);
			list_benchmark!(list, extra, pallet_timestamp, Timestamp);
			list_benchmark!(list, extra, pallet_collator_selection, CollatorSelection);

			let storage_info = AllPalletsWithSystem::storage_info();

			return (list, storage_info)
		}

		fn dispatch_benchmark(
			config: frame_benchmarking::BenchmarkConfig
		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, sp_runtime::RuntimeString> {
			use frame_benchmarking::{Benchmarking, BenchmarkBatch, add_benchmark, TrackedStorageKey};

			use frame_system_benchmarking::Pallet as SystemBench;
			impl frame_system_benchmarking::Config for Runtime {}

			use cumulus_pallet_session_benchmarking::Pallet as SessionBench;
			impl cumulus_pallet_session_benchmarking::Config for Runtime {}

			let whitelist: Vec<TrackedStorageKey> = vec![
				// Block Number
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef702a5c1b19ab7a04f536c519aca4983ac").to_vec().into(),
				// Total Issuance
				hex_literal::hex!("c2261276cc9d1f8598ea4b6a74b15c2f57c875e4cff74148e4628f264b974c80").to_vec().into(),
				// Execution Phase
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7ff553b5a9862a516939d82b3d3d8661a").to_vec().into(),
				// Event Count
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef70a98fdbe9ce6c55837576c60c7af3850").to_vec().into(),
				// System Events
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef780d41e5e16056765bc8461851072c9d7").to_vec().into(),
			];

			let mut batches = Vec::<BenchmarkBatch>::new();
			let params = (&config, &whitelist);

			add_benchmark!(params, batches, frame_system, SystemBench::<Runtime>);
			add_benchmark!(params, batches, pallet_balances, Balances);
			add_benchmark!(params, batches, pallet_session, SessionBench::<Runtime>);
			add_benchmark!(params, batches, pallet_timestamp, Timestamp);
			add_benchmark!(params, batches, pallet_collator_selection, CollatorSelection);

			if batches.is_empty() { return Err("Benchmark not found for this pallet.".into()) }
			Ok(batches)
		}
	}
}

struct CheckInherents;

impl cumulus_pallet_parachain_system::CheckInherents<Block> for CheckInherents {
	fn check_inherents(
		block: &Block,
		relay_state_proof: &cumulus_pallet_parachain_system::RelayChainStateProof,
	) -> sp_inherents::CheckInherentsResult {
		let relay_chain_slot = relay_state_proof
			.read_slot()
			.expect("Could not read the relay chain slot from the proof");

		let inherent_data =
			cumulus_primitives_timestamp::InherentDataProvider::from_relay_chain_slot_and_duration(
				relay_chain_slot,
				sp_std::time::Duration::from_secs(6),
			)
			.create_inherent_data()
			.expect("Could not create the timestamp inherent data");

		inherent_data.check_extrinsics(block)
	}
}

cumulus_pallet_parachain_system::register_validate_block! {
	Runtime = Runtime,
	BlockExecutor = cumulus_pallet_aura_ext::BlockExecutor::<Runtime, Executive>,
	CheckInherents = CheckInherents,
}