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//! Mocks for the currencies module.

#![cfg(test)]

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use frame_support::{impl_outer_event, impl_outer_origin, parameter_types};
use pallet_balances;
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use sp_core::H256;
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use sp_runtime::{testing::Header, traits::IdentityLookup, Perbill};
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use tokens;

use super::*;

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mod currencies {
	pub use crate::Event;
}

impl_outer_event! {
	pub enum TestEvent for Runtime {
		frame_system<T>,
		currencies<T>,
		tokens<T>,
		pallet_balances<T>,
	}
}

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impl_outer_origin! {
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	pub enum Origin for Runtime {}
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}

// Workaround for https://github.com/rust-lang/rust/issues/26925 . Remove when sorted.
#[derive(Clone, PartialEq, Eq, Debug)]
pub struct Runtime;
parameter_types! {
	pub const BlockHashCount: u64 = 250;
	pub const MaximumBlockWeight: u32 = 1024;
	pub const MaximumBlockLength: u32 = 2 * 1024;
	pub const AvailableBlockRatio: Perbill = Perbill::one();
}

pub type AccountId = u128;
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impl frame_system::Trait for Runtime {
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	type Origin = Origin;
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	type Index = u64;
	type BlockNumber = u64;
	type Hash = H256;
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	type Hashing = ::sp_runtime::traits::BlakeTwo256;
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	type AccountId = AccountId;
	type Lookup = IdentityLookup<Self::AccountId>;
	type Header = Header;
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	type Event = TestEvent;
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	type BlockHashCount = BlockHashCount;
	type MaximumBlockWeight = MaximumBlockWeight;
	type MaximumBlockLength = MaximumBlockLength;
	type AvailableBlockRatio = AvailableBlockRatio;
	type Version = ();
	type ModuleToIndex = ();
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	type AccountData = pallet_balances::AccountData<u64>;
	type OnNewAccount = ();
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	type OnKilledAccount = ();
	type DbWeight = ();
	type BlockExecutionWeight = ();
	type ExtrinsicBaseWeight = ();
	type MaximumExtrinsicWeight = ();
	type BaseCallFilter = ();
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	type SystemWeightInfo = ();
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pub type System = frame_system::Module<Runtime>;
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type CurrencyId = u32;
type Balance = u64;

parameter_types! {
	pub const ExistentialDeposit: u64 = 1;
impl pallet_balances::Trait for Runtime {
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	type Balance = Balance;
	type DustRemoval = ();
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	type Event = TestEvent;
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	type ExistentialDeposit = ExistentialDeposit;
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	type AccountStore = frame_system::Module<Runtime>;
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	type WeightInfo = ();
pub type PalletBalances = pallet_balances::Module<Runtime>;
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impl tokens::Trait for Runtime {
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	type Event = TestEvent;
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	type Balance = Balance;
	type Amount = i64;
	type CurrencyId = CurrencyId;
	type OnReceived = ();
pub type Tokens = tokens::Module<Runtime>;
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pub const NATIVE_CURRENCY_ID: CurrencyId = 1;
pub const X_TOKEN_ID: CurrencyId = 2;

parameter_types! {
	pub const GetNativeCurrencyId: CurrencyId = NATIVE_CURRENCY_ID;
}

impl Trait for Runtime {
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	type Event = TestEvent;
	type MultiCurrency = Tokens;
	type NativeCurrency = AdaptedBasicCurrency;
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	type GetNativeCurrencyId = GetNativeCurrencyId;
}
pub type Currencies = Module<Runtime>;
pub type NativeCurrency = NativeCurrencyOf<Runtime>;
pub type AdaptedBasicCurrency = BasicCurrencyAdapter<PalletBalances, Balance, Balance, i64, u64>;
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pub const ALICE: AccountId = 1;
pub const BOB: AccountId = 2;
pub const EVA: AccountId = 5;
pub const ID_1: LockIdentifier = *b"1       ";
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pub struct ExtBuilder {
	endowed_accounts: Vec<(AccountId, CurrencyId, Balance)>,
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}

impl Default for ExtBuilder {
	fn default() -> Self {
		Self {
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		}
	}
}

impl ExtBuilder {
	pub fn balances(mut self, endowed_accounts: Vec<(AccountId, CurrencyId, Balance)>) -> Self {
		self.endowed_accounts = endowed_accounts;
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		self
	}

	pub fn one_hundred_for_alice_n_bob(self) -> Self {
		self.balances(vec![
			(ALICE, NATIVE_CURRENCY_ID, 100),
			(BOB, NATIVE_CURRENCY_ID, 100),
			(ALICE, X_TOKEN_ID, 100),
			(BOB, X_TOKEN_ID, 100),
		])
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	pub fn build(self) -> sp_io::TestExternalities {
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		let mut t = frame_system::GenesisConfig::default()
			.build_storage::<Runtime>()
			.unwrap();
		pallet_balances::GenesisConfig::<Runtime> {
			balances: self
				.endowed_accounts
				.clone()
				.into_iter()
				.filter(|(_, currency_id, _)| *currency_id == NATIVE_CURRENCY_ID)
				.map(|(account_id, _, initial_balance)| (account_id, initial_balance))
				.collect::<Vec<_>>(),
		}
		.assimilate_storage(&mut t)
		.unwrap();

		tokens::GenesisConfig::<Runtime> {
			endowed_accounts: self
				.endowed_accounts
				.into_iter()
				.filter(|(_, currency_id, _)| *currency_id != NATIVE_CURRENCY_ID)
				.collect::<Vec<_>>(),
		.assimilate_storage(&mut t)
		.unwrap();