// Copyright 2018-2020 Parity Technologies (UK) Ltd.
// This file is part of Substrate.

// Substrate 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.

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

//! Test utilities

#![cfg(test)]

use sp_runtime::testing::Header;
use sp_runtime::Perbill;
use sp_core::H256;
use frame_support::{impl_outer_origin, impl_outer_event, parameter_types, weights::Weight};
use crate::{self as indices, Module, Trait};
use frame_system as system;
use pallet_balances as balances;

impl_outer_origin!{
	pub enum Origin for Test where system = frame_system {}
}
impl_outer_event!{
	pub enum MetaEvent for Test {
		system<T>,
		balances<T>,
		indices<T>,
	}
}

// Workaround for https://github.com/rust-lang/rust/issues/26925 . Remove when sorted.
#[derive(Clone, PartialEq, Eq, Debug)]
pub struct Test;

parameter_types! {
	pub const BlockHashCount: u64 = 250;
	pub const MaximumBlockWeight: Weight = 1024;
	pub const MaximumBlockLength: u32 = 2 * 1024;
	pub const AvailableBlockRatio: Perbill = Perbill::one();
}

impl frame_system::Trait for Test {
	type Origin = Origin;
	type Call = ();
	type Index = u64;
	type BlockNumber = u64;
	type Hash = H256;
	type Hashing = ::sp_runtime::traits::BlakeTwo256;
	type AccountId = u64;
	type Lookup = Indices;
	type Header = Header;
	type Event = MetaEvent;
	type BlockHashCount = BlockHashCount;
	type MaximumBlockWeight = MaximumBlockWeight;
	type MaximumBlockLength = MaximumBlockLength;
	type AvailableBlockRatio = AvailableBlockRatio;
	type Version = ();
	type ModuleToIndex = ();
	type AccountData = pallet_balances::AccountData<u64>;
	type OnNewAccount = ();
	type OnKilledAccount = ();
}

parameter_types! {
	pub const ExistentialDeposit: u64 = 1;
}

impl pallet_balances::Trait for Test {
	type Balance = u64;
	type DustRemoval = ();
	type Event = MetaEvent;
	type ExistentialDeposit = ExistentialDeposit;
	type AccountStore = System;
}

parameter_types! {
	pub const Deposit: u64 = 1;
}

impl Trait for Test {
	type AccountIndex = u64;
	type Currency = Balances;
	type Deposit = Deposit;
	type Event = MetaEvent;
}

pub fn new_test_ext() -> sp_io::TestExternalities {
	let mut t = frame_system::GenesisConfig::default().build_storage::<Test>().unwrap();
	pallet_balances::GenesisConfig::<Test>{
		balances: vec![(1, 10), (2, 20), (3, 30), (4, 40), (5, 50), (6, 60)],
	}.assimilate_storage(&mut t).unwrap();
	t.into()
}

pub type System = frame_system::Module<Test>;
pub type Balances = pallet_balances::Module<Test>;
pub type Indices = Module<Test>;