// 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.

//! Test environment for transaction-storage pallet.

use crate::{
	self as pallet_transaction_storage, TransactionStorageProof, DEFAULT_MAX_BLOCK_TRANSACTIONS,
	DEFAULT_MAX_TRANSACTION_SIZE,
};
use frame_support::{
	derive_impl,
	traits::{ConstU32, ConstU64, OnFinalize, OnInitialize},
};
use sp_runtime::{traits::IdentityLookup, BuildStorage};

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

// Configure a mock runtime to test the pallet.
frame_support::construct_runtime!(
	pub enum Test
	{
		System: frame_system,
		Balances: pallet_balances,
		TransactionStorage: pallet_transaction_storage,
	}
);

#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
impl frame_system::Config for Test {
	type Block = Block;
	type AccountData = pallet_balances::AccountData<u64>;
	type AccountId = u64;
	type BlockHashCount = ConstU64<250>;
	type Lookup = IdentityLookup<Self::AccountId>;
}

#[derive_impl(pallet_balances::config_preludes::TestDefaultConfig)]
impl pallet_balances::Config for Test {
	type AccountStore = System;
}

impl pallet_transaction_storage::Config for Test {
	type RuntimeEvent = RuntimeEvent;
	type RuntimeCall = RuntimeCall;
	type Currency = Balances;
	type RuntimeHoldReason = RuntimeHoldReason;
	type FeeDestination = ();
	type WeightInfo = ();
	type MaxBlockTransactions = ConstU32<{ DEFAULT_MAX_BLOCK_TRANSACTIONS }>;
	type MaxTransactionSize = ConstU32<{ DEFAULT_MAX_TRANSACTION_SIZE }>;
}

pub fn new_test_ext() -> sp_io::TestExternalities {
	let t = RuntimeGenesisConfig {
		system: Default::default(),
		balances: pallet_balances::GenesisConfig::<Test> {
			balances: vec![(1, 1000000000), (2, 100), (3, 100), (4, 100)],
		},
		transaction_storage: pallet_transaction_storage::GenesisConfig::<Test> {
			storage_period: 10,
			byte_fee: 2,
			entry_fee: 200,
		},
	}
	.build_storage()
	.unwrap();
	t.into()
}

pub fn run_to_block(n: u64, f: impl Fn() -> Option<TransactionStorageProof>) {
	while System::block_number() < n {
		if let Some(proof) = f() {
			TransactionStorage::check_proof(RuntimeOrigin::none(), proof).unwrap();
		}
		TransactionStorage::on_finalize(System::block_number());
		System::on_finalize(System::block_number());
		System::set_block_number(System::block_number() + 1);
		System::on_initialize(System::block_number());
		TransactionStorage::on_initialize(System::block_number());
	}
}