// Copyright 2019-2022 PureStake Inc.

// This file is part of Moonbeam.

// Moonbeam 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.

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

//! A minimal precompile runtime including the pallet-randomness pallet

use super::*;

use frame_support::{construct_runtime, parameter_types, traits::Everything, weights::Weight};

use nimbus_primitives::NimbusId;

use pallet_evm::{EnsureAddressNever, EnsureAddressRoot};

use precompile_utils::{precompile_set::*, testing::MockAccount};

use session_keys_primitives::VrfId;

use sp_core::H256;

use sp_runtime::{

	traits::{BlakeTwo256, IdentityLookup},

	BuildStorage, Perbill,

};

use sp_std::convert::{TryFrom, TryInto};

pub type AccountId = MockAccount;

pub type Balance = u128;

type Block = frame_system::mocking::MockBlockU32<Runtime>;

// Configure a mock runtime to test the pallet.

parameter_types! {

	pub const BlockHashCount: u32 = 250;

	pub const MaximumBlockWeight: Weight = Weight::from_parts(1024, 1);

	pub const MaximumBlockLength: u32 = 2 * 1024;

	pub const AvailableBlockRatio: Perbill = Perbill::one();

	pub const SS58Prefix: u8 = 42;

}

impl frame_system::Config for Runtime {

	type BaseCallFilter = Everything;

	type DbWeight = ();

	type RuntimeOrigin = RuntimeOrigin;

	type RuntimeTask = RuntimeTask;

	type Nonce = u64;

	type Block = Block;

	type RuntimeCall = RuntimeCall;

	type Hash = H256;

	type Hashing = BlakeTwo256;

	type AccountId = AccountId;

	type Lookup = IdentityLookup<Self::AccountId>;

	type RuntimeEvent = RuntimeEvent;

	type BlockHashCount = BlockHashCount;

	type Version = ();

	type PalletInfo = PalletInfo;

	type AccountData = pallet_balances::AccountData<Balance>;

	type OnNewAccount = ();

	type OnKilledAccount = ();

	type SystemWeightInfo = ();

	type BlockWeights = ();

	type BlockLength = ();

	type SS58Prefix = SS58Prefix;

	type OnSetCode = ();

	type MaxConsumers = frame_support::traits::ConstU32<16>;

	type SingleBlockMigrations = ();

	type MultiBlockMigrator = ();

	type PreInherents = ();

	type PostInherents = ();

	type PostTransactions = ();

}

parameter_types! {

	pub const ExistentialDeposit: u128 = 0;

}

impl pallet_balances::Config for Runtime {

	type MaxReserves = ();

	type ReserveIdentifier = [u8; 4];

	type MaxLocks = ();

	type Balance = Balance;

	type RuntimeEvent = RuntimeEvent;

	type DustRemoval = ();

	type ExistentialDeposit = ExistentialDeposit;

	type AccountStore = System;

	type WeightInfo = ();

	type RuntimeHoldReason = ();

	type FreezeIdentifier = ();

	type MaxFreezes = ();

	type RuntimeFreezeReason = ();

}

pub type TestPrecompiles<R> = PrecompileSetBuilder<

	R,

	(

		PrecompileAt<

			AddressU64<1>,

			RandomnessPrecompile<R>,

			(SubcallWithMaxNesting<1>, CallableByContract),

		>,

		RevertPrecompile<AddressU64<2>>,

	),

>;

pub type PCall = RandomnessPrecompileCall<Runtime>;

parameter_types! {

	pub PrecompilesValue: TestPrecompiles<Runtime> = TestPrecompiles::new();

	pub const WeightPerGas: Weight = Weight::from_parts(1, 0);

	pub const SuicideQuickClearLimit: u32 = 0;

}

impl pallet_evm::Config for Runtime {

	type FeeCalculator = ();

	type GasWeightMapping = pallet_evm::FixedGasWeightMapping<Self>;

	type WeightPerGas = WeightPerGas;

	type CallOrigin = EnsureAddressRoot<AccountId>;

	type WithdrawOrigin = EnsureAddressNever<AccountId>;

	type AddressMapping = AccountId;

	type Currency = Balances;

	type RuntimeEvent = RuntimeEvent;

	type Runner = pallet_evm::runner::stack::Runner<Self>;

	type PrecompilesType = TestPrecompiles<Runtime>;

	type PrecompilesValue = PrecompilesValue;

	type ChainId = ();

	type OnChargeTransaction = ();

	type BlockGasLimit = ();

	type BlockHashMapping = pallet_evm::SubstrateBlockHashMapping<Self>;

	type FindAuthor = ();

	type OnCreate = ();

	type GasLimitPovSizeRatio = ();

	type GasLimitStorageGrowthRatio = ();

	type Timestamp = Timestamp;

	type WeightInfo = pallet_evm::weights::SubstrateWeight<Runtime>;

	type SuicideQuickClearLimit = SuicideQuickClearLimit;

}

parameter_types! {

	pub const MinimumPeriod: u64 = 5;

}

impl pallet_timestamp::Config for Runtime {

	type Moment = u64;

	type OnTimestampSet = ();

	type MinimumPeriod = MinimumPeriod;

	type WeightInfo = ();

}

parameter_types! {

	pub const DepositAmount: Balance = 100;

}

impl pallet_author_mapping::Config for Runtime {

	type RuntimeEvent = RuntimeEvent;

	type DepositCurrency = Balances;

	type DepositAmount = DepositAmount;

	type Keys = VrfId;

	type WeightInfo = ();

}

pub struct BabeDataGetter;

impl pallet_randomness::GetBabeData<u64, Option<H256>> for BabeDataGetter {

}

parameter_types! {

	pub const Deposit: u128 = 10;

	pub const MaxRandomWords: u8 = 1;

	pub const MinBlockDelay: u32 = 2;

	pub const MaxBlockDelay: u32 = 20;

}

impl pallet_randomness::Config for Runtime {

	type RuntimeEvent = RuntimeEvent;

	type AddressMapping = AccountId;

	type Currency = Balances;

	type BabeDataGetter = BabeDataGetter;

	type VrfKeyLookup = AuthorMapping;

	type Deposit = Deposit;

	type MaxRandomWords = MaxRandomWords;

	type MinBlockDelay = MinBlockDelay;

	type MaxBlockDelay = MaxBlockDelay;

	type BlockExpirationDelay = MaxBlockDelay;

	type EpochExpirationDelay = MaxBlockDelay;

	type WeightInfo = pallet_randomness::weights::SubstrateWeight<Runtime>;

}

/// Externality builder for pallet randomness mock runtime

pub(crate) struct ExtBuilder {

	/// Balance amounts per AccountId

	balances: Vec<(AccountId, Balance)>,

	/// AuthorId -> AccountId mappings

	mappings: Vec<(NimbusId, AccountId)>,

}

impl Default for ExtBuilder {

}

impl ExtBuilder {

	#[allow(dead_code)]

	#[allow(dead_code)]

	#[allow(dead_code)]

}

/// Panics if an event is not found in the system log of events

#[macro_export]

macro_rules! assert_event_emitted {

	($event:expr) => {

		match &$event {

			e => {

				assert!(

					crate::mock::events().iter().find(|x| *x == e).is_some(),

					"Event {:?} was not found in events: \n {:#?}",

					e,

					crate::mock::events()

				);

			}

		}

	};

}