nautilus-backtest 0.59.0

Core backtesting machinery for the Nautilus trading engine
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// -------------------------------------------------------------------------------------------------
//  Copyright (C) 2015-2026 Nautech Systems Pty Ltd. All rights reserved.
//  https://nautechsystems.io
//
//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
//  You may not use this file except in compliance with the License.
//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
//
//  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.
// -------------------------------------------------------------------------------------------------

//! Replay ordering for DeFi data.

use nautilus_model::defi::DefiData;

pub(crate) fn replay_position(data: &DefiData) -> (u64, u32, u32, u8) {
    let (block_number, transaction_index, log_index) = data.block_position();
    (
        block_number,
        transaction_index,
        log_index,
        replay_phase(data),
    )
}

const fn replay_phase(data: &DefiData) -> u8 {
    match data {
        DefiData::Block(_) => 0,
        DefiData::Pool(_) => 1,
        DefiData::PoolSnapshot(_) => 2,
        DefiData::PoolSwap(_)
        | DefiData::PoolLiquidityUpdate(_)
        | DefiData::PoolFeeCollect(_)
        | DefiData::PoolFeeProtocolUpdate(_)
        | DefiData::PoolFeeProtocolCollect(_)
        | DefiData::PoolFlash(_) => 3,
    }
}