// 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/>.

//! Test utilities

use super::*;

use frame_support::{

	construct_runtime, parameter_types,

	traits::{EitherOfDiverse, Everything, SortedMembers},

	weights::Weight,

};

use frame_system::{EnsureRoot, EnsureSignedBy};

use pallet_evm::{EnsureAddressNever, EnsureAddressRoot};

use pallet_identity::legacy::IdentityInfo;

use precompile_utils::mock_account;

use precompile_utils::{

	precompile_set::*,

	testing::{MockAccount, MockSignature},

};

use sp_core::{H256, U256};

use sp_runtime::{

	traits::{BlakeTwo256, IdentityLookup},

	BuildStorage, Perbill,

};

pub type AccountId = MockAccount;

pub type Balance = u128;

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

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<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 = 1;

}

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 = ();

}

const MAX_POV_SIZE: u64 = 5 * 1024 * 1024;

/// Block storage limit in bytes. Set to 40 KB.

const BLOCK_STORAGE_LIMIT: u64 = 40 * 1024;

parameter_types! {

	pub BlockGasLimit: U256 = U256::from(u64::MAX);

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

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

	pub GasLimitPovSizeRatio: u64 = {

		let block_gas_limit = BlockGasLimit::get().min(u64::MAX.into()).low_u64();

		block_gas_limit.saturating_div(MAX_POV_SIZE)

	};

	pub GasLimitStorageGrowthRatio: u64 = {

		let block_gas_limit = BlockGasLimit::get().min(u64::MAX.into()).low_u64();

		block_gas_limit.saturating_div(BLOCK_STORAGE_LIMIT)

	};

}

pub type Precompiles<R> = PrecompileSetBuilder<

	R,

	(PrecompileAt<AddressU64<1>, IdentityPrecompile<R, MaxAdditionalFields>>,),

>;

pub type PCall = IdentityPrecompileCall<Runtime, MaxAdditionalFields>;

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 = Precompiles<Runtime>;

	type PrecompilesValue = PrecompilesValue;

	type ChainId = ();

	type OnChargeTransaction = ();

	type BlockGasLimit = BlockGasLimit;

	type BlockHashMapping = pallet_evm::SubstrateBlockHashMapping<Self>;

	type FindAuthor = ();

	type OnCreate = ();

	type GasLimitPovSizeRatio = GasLimitPovSizeRatio;

	type SuicideQuickClearLimit = ConstU32<0>;

	type GasLimitStorageGrowthRatio = GasLimitStorageGrowthRatio;

	type Timestamp = Timestamp;

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

}

parameter_types! {

	pub const MinimumPeriod: u64 = 5;

}

impl pallet_timestamp::Config for Runtime {

	type Moment = u64;

	type OnTimestampSet = ();

	type MinimumPeriod = MinimumPeriod;

	type WeightInfo = ();

}

impl SortedMembers<MockAccount> for RegistrarAndForceOrigin {

	#[cfg(feature = "runtime-benchmarks")]

	fn add(_m: &MockAccount) {}

}

type EnsureRegistrarAndForceOriginOrRoot =

	EitherOfDiverse<EnsureRoot<AccountId>, EnsureSignedBy<RegistrarAndForceOrigin, AccountId>>;

parameter_types! {

	pub const BasicDeposit: u64 = 10;

	pub const ByteDeposit: u64 = 10;

	pub const SubAccountDeposit: u64 = 10;

	pub const MaxSubAccounts: u32 = 2;

	pub const MaxAdditionalFields: u32 = 2;

	pub const MaxRegistrars: u32 = 20;

}

impl core::fmt::Debug for MaxAdditionalFields {

}

impl pallet_identity::Config for Runtime {

	type RuntimeEvent = RuntimeEvent;

	type Currency = Balances;

	type BasicDeposit = BasicDeposit;

	type ByteDeposit = ByteDeposit;

	type SubAccountDeposit = SubAccountDeposit;

	type MaxSubAccounts = MaxSubAccounts;

	type IdentityInformation = IdentityInfo<MaxAdditionalFields>;

	type MaxRegistrars = MaxRegistrars;

	type Slashed = ();

	type RegistrarOrigin = EnsureRegistrarAndForceOriginOrRoot;

	type ForceOrigin = EnsureRegistrarAndForceOriginOrRoot;

	type OffchainSignature = MockSignature;

	type SigningPublicKey = <MockSignature as sp_runtime::traits::Verify>::Signer;

	type UsernameAuthorityOrigin = EnsureRoot<Self::AccountId>;

	type PendingUsernameExpiration = ConstU32<100>;

	type MaxSuffixLength = ConstU32<7>;

	type MaxUsernameLength = ConstU32<32>;

	type WeightInfo = ();

}

pub(crate) struct ExtBuilder {

	/// Endowed accounts with balances

	balances: Vec<(AccountId, Balance)>,

}

impl Default for ExtBuilder {

}

impl ExtBuilder {

	/// Fund some accounts before starting the test

	/// Build the test externalities for use in tests

}