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// 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.

// Benchmarks for Utility Pallet

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

use alloc::vec;
use frame_benchmarking::{benchmarking::add_to_whitelist, v2::*};
use frame_system::RawOrigin;

use crate::*;

const SEED: u32 = 0;

fn assert_last_event<T: Config>(generic_event: <T as Config>::RuntimeEvent) {
	frame_system::Pallet::<T>::assert_last_event(generic_event.into());
}

#[benchmarks]
mod benchmark {
	use super::*;

	#[benchmark]
	fn batch(c: Linear<0, 1000>) {
		let calls = vec![frame_system::Call::remark { remark: vec![] }.into(); c as usize];
		let caller = whitelisted_caller();

		#[extrinsic_call]
		_(RawOrigin::Signed(caller), calls);

		assert_last_event::<T>(Event::BatchCompleted.into());
	}

	#[benchmark]
	fn as_derivative() {
		let caller = account("caller", SEED, SEED);
		let call = Box::new(frame_system::Call::remark { remark: vec![] }.into());
		// Whitelist caller account from further DB operations.
		let caller_key = frame_system::Account::<T>::hashed_key_for(&caller);
		add_to_whitelist(caller_key.into());

		#[extrinsic_call]
		_(RawOrigin::Signed(caller), SEED as u16, call);
	}

	#[benchmark]
	fn batch_all(c: Linear<0, 1000>) {
		let calls = vec![frame_system::Call::remark { remark: vec![] }.into(); c as usize];
		let caller = whitelisted_caller();

		#[extrinsic_call]
		_(RawOrigin::Signed(caller), calls);

		assert_last_event::<T>(Event::BatchCompleted.into());
	}

	#[benchmark]
	fn dispatch_as() {
		let caller = account("caller", SEED, SEED);
		let call = Box::new(frame_system::Call::remark { remark: vec![] }.into());
		let origin = T::RuntimeOrigin::from(RawOrigin::Signed(caller));
		let pallets_origin = origin.caller().clone();
		let pallets_origin = T::PalletsOrigin::from(pallets_origin);

		#[extrinsic_call]
		_(RawOrigin::Root, Box::new(pallets_origin), call);
	}

	#[benchmark]
	fn force_batch(c: Linear<0, 1000>) {
		let calls = vec![frame_system::Call::remark { remark: vec![] }.into(); c as usize];
		let caller = whitelisted_caller();

		#[extrinsic_call]
		_(RawOrigin::Signed(caller), calls);

		assert_last_event::<T>(Event::BatchCompleted.into());
	}

	impl_benchmark_test_suite! {
		Pallet,
		tests::new_test_ext(),
		tests::Test
	}
}