// Copyright 2022 The Grin Developers
// 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 a wallet doing contract early lock when using --add-outputs
// #[macro_use]
extern crate grin_wallet_controller as wallet;
extern crate grin_wallet_impls as impls;
extern crate log;

use grin_wallet_libwallet as libwallet;

use grin_core::consensus;
use libwallet::contract::my_fee_contribution;
use libwallet::contract::types::{ContractNewArgsAPI, ContractSetupArgsAPI};
use libwallet::{OutputStatus, Slate, SlateState};
use std::sync::atomic::Ordering;
use std::thread;
use std::time::Duration;

#[macro_use]
mod common;
use common::{clean_output_dir, create_wallets, setup};

/// contract new with --add-outputs
fn contract_early_lock_tx_impl(test_dir: &'static str) -> Result<(), libwallet::Error> {
	// create a single wallet and mine 5 blocks
	let (wallets, _chain, stopper, _bh) =
		create_wallets(vec![vec![("default", 5)]], test_dir).unwrap();
	let send_wallet = wallets[0].0.clone();
	let send_mask = wallets[0].1.as_ref();

	// Confirm all our outputs are unspent
	wallet::controller::owner_single_use(Some(send_wallet.clone()), send_mask, None, |api, m| {
		let (_, commits) = api.retrieve_outputs(m, true, false, None)?;
		for commit in commits.iter() {
			assert_eq!(commit.output.status, OutputStatus::Unspent);
		}
		Ok(())
	})?;

	let mut slate = Slate::blank(0, false); // this gets overriden below

	// Call contract 'new' with --add-outputs
	wallet::controller::owner_single_use(Some(send_wallet.clone()), send_mask, None, |api, m| {
		// Send wallet inititates a standard transaction with --send=80
		let args = &ContractNewArgsAPI {
			setup_args: ContractSetupArgsAPI {
				net_change: Some(-80_000_000_000),
				num_participants: 2,
				add_outputs: true,
				..Default::default()
			},
			..Default::default()
		};
		slate = api.contract_new(m, args)?;
		Ok(())
	})?;
	assert_eq!(slate.state, SlateState::Standard1);

	// Assert we locked 2 inputs and prepared an unconfirmed change output
	wallet::controller::owner_single_use(Some(send_wallet.clone()), send_mask, None, |api, m| {
		let (_, commits) = api.retrieve_outputs(m, true, false, None)?;
		// we locked the first two coinbase outputs
		assert_eq!(commits[0].output.status, OutputStatus::Locked);
		assert_eq!(commits[1].output.status, OutputStatus::Locked);
		// we added a new unconfirmed change output
		let new_output_idx = commits.len() - 1;
		assert_eq!(
			commits[new_output_idx].output.status,
			OutputStatus::Unconfirmed
		);
		assert_eq!(
			commits[new_output_idx].output.value,
			2 * consensus::REWARD - 80_000_000_000 - my_fee_contribution(2, 1, 1, 2)?.fee()
		);
		Ok(())
	})?;

	// let logging finish
	stopper.store(false, Ordering::Relaxed);
	thread::sleep(Duration::from_millis(200));

	Ok(())
}

#[test]
fn wallet_contract_early_lock_tx() -> Result<(), libwallet::Error> {
	let test_dir = "test_output/contract_early_lock_tx";
	setup(test_dir);
	contract_early_lock_tx_impl(test_dir)?;
	clean_output_dir(test_dir);
	Ok(())
}