// This file is part of Substrate.

// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// 	http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use frame_support::{
	parameter_types,
	traits::{ConstU32, ConstU64, WithdrawReasons},
};
use sp_core::H256;
use sp_runtime::{
	traits::{BlakeTwo256, Identity, IdentityLookup},
	BuildStorage,
};

use super::*;
use crate as pallet_vesting;

type Block = frame_system::mocking::MockBlock<Test>;

frame_support::construct_runtime!(
	pub enum Test
	{
		System: frame_system::{Pallet, Call, Config<T>, Storage, Event<T>},
		Balances: pallet_balances::{Pallet, Call, Storage, Config<T>, Event<T>},
		Vesting: pallet_vesting::{Pallet, Call, Storage, Event<T>, Config<T>},
	}
);

impl frame_system::Config for Test {
	type AccountData = pallet_balances::AccountData<u64>;
	type AccountId = u64;
	type BaseCallFilter = frame_support::traits::Everything;
	type BlockHashCount = ConstU64<250>;
	type BlockLength = ();
	type BlockWeights = ();
	type RuntimeCall = RuntimeCall;
	type DbWeight = ();
	type RuntimeEvent = RuntimeEvent;
	type Hash = H256;
	type Hashing = BlakeTwo256;
	type Block = Block;
	type Nonce = u64;
	type Lookup = IdentityLookup<Self::AccountId>;
	type OnKilledAccount = ();
	type OnNewAccount = ();
	type OnSetCode = ();
	type MaxConsumers = frame_support::traits::ConstU32<16>;
	type RuntimeOrigin = RuntimeOrigin;
	type PalletInfo = PalletInfo;
	type SS58Prefix = ();
	type SystemWeightInfo = ();
	type Version = ();
}

impl pallet_balances::Config for Test {
	type AccountStore = System;
	type Balance = u64;
	type DustRemoval = ();
	type RuntimeEvent = RuntimeEvent;
	type ExistentialDeposit = ExistentialDeposit;
	type MaxLocks = ConstU32<10>;
	type MaxReserves = ();
	type ReserveIdentifier = [u8; 8];
	type WeightInfo = ();
	type FreezeIdentifier = ();
	type MaxFreezes = ();
	type RuntimeHoldReason = ();
	type MaxHolds = ();
}
parameter_types! {
	pub const MinVestedTransfer: u64 = 256 * 2;
	pub UnvestedFundsAllowedWithdrawReasons: WithdrawReasons =
		WithdrawReasons::except(WithdrawReasons::TRANSFER | WithdrawReasons::RESERVE);
	pub static ExistentialDeposit: u64 = 1;
}
impl Config for Test {
	type BlockNumberToBalance = Identity;
	type Currency = Balances;
	type RuntimeEvent = RuntimeEvent;
	const MAX_VESTING_SCHEDULES: u32 = 3;
	type MinVestedTransfer = MinVestedTransfer;
	type WeightInfo = ();
	type UnvestedFundsAllowedWithdrawReasons = UnvestedFundsAllowedWithdrawReasons;
}

pub struct ExtBuilder {
	existential_deposit: u64,
	vesting_genesis_config: Option<Vec<(u64, u64, u64, u64)>>,
}

impl Default for ExtBuilder {
	fn default() -> Self {
		Self { existential_deposit: 1, vesting_genesis_config: None }
	}
}

impl ExtBuilder {
	pub fn existential_deposit(mut self, existential_deposit: u64) -> Self {
		self.existential_deposit = existential_deposit;
		self
	}

	pub fn vesting_genesis_config(mut self, config: Vec<(u64, u64, u64, u64)>) -> Self {
		self.vesting_genesis_config = Some(config);
		self
	}

	pub fn build(self) -> sp_io::TestExternalities {
		EXISTENTIAL_DEPOSIT.with(|v| *v.borrow_mut() = self.existential_deposit);
		let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
		pallet_balances::GenesisConfig::<Test> {
			balances: vec![
				(1, 10 * self.existential_deposit),
				(2, 20 * self.existential_deposit),
				(3, 30 * self.existential_deposit),
				(4, 40 * self.existential_deposit),
				(12, 10 * self.existential_deposit),
				(13, 9999 * self.existential_deposit),
			],
		}
		.assimilate_storage(&mut t)
		.unwrap();

		let vesting = if let Some(vesting_config) = self.vesting_genesis_config {
			vesting_config
		} else {
			vec![
				(1, 0, 10, 5 * self.existential_deposit),
				(2, 10, 20, 0),
				(12, 10, 20, 5 * self.existential_deposit),
			]
		};

		pallet_vesting::GenesisConfig::<Test> { vesting }
			.assimilate_storage(&mut t)
			.unwrap();
		let mut ext = sp_io::TestExternalities::new(t);
		ext.execute_with(|| System::set_block_number(1));
		ext
	}
}