nautilus-blockchain 0.52.0

Blockchain and DeFi integration adapter for the Nautilus trading engine
Documentation 
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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.
// -------------------------------------------------------------------------------------------------

use std::sync::LazyLock;

use nautilus_model::defi::{
    PoolIdentifier,
    chain::chains,
    dex::{AmmType, Dex, DexType},
};
use ustr::Ustr;

use crate::{
    events::pool_created::PoolCreatedEvent,
    exchanges::extended::DexExtended,
    hypersync::{
        HypersyncLog,
        helpers::{
            extract_address_from_topic, extract_block_number, validate_event_signature_hash,
        },
    },
};

const POOL_CREATED_EVENT_SIGNATURE_HASH: &str =
    "3fecd5f7aca6136a20a999e7d11ff5dcea4bd675cb125f93ccd7d53f98ec57e4";

/// Fluid DEX on Arbitrum.
pub static FLUID_DEX: LazyLock<DexExtended> = LazyLock::new(|| {
    let mut dex = DexExtended::new(Dex::new(
        chains::ARBITRUM.clone(),
        DexType::FluidDEX,
        "0x91716C4EDA1Fb55e84Bf8b4c7085f84285c19085",
        269528370,
        AmmType::CLAMM,
        "DexT1Deployed(address,uint256,address,address)",
        "",
        "",
        "",
        "",
    ));
    dex.set_pool_created_event_hypersync_parsing(parse_fluid_dex_pool_created_event_hypersync);
    dex
});

fn parse_fluid_dex_pool_created_event_hypersync(
    log: HypersyncLog,
) -> anyhow::Result<PoolCreatedEvent> {
    validate_event_signature_hash("DexT1Deployed", POOL_CREATED_EVENT_SIGNATURE_HASH, &log)?;

    let block_number = extract_block_number(&log)?;
    let pool_address = extract_address_from_topic(&log, 1, "pool")?;
    let pool_identifier = PoolIdentifier::Address(Ustr::from(&pool_address.to_string()));
    let supply_token_address = extract_address_from_topic(&log, 2, "supply_token")?;
    let borrow_token_address = extract_address_from_topic(&log, 3, "borrow_token")?;

    Ok(PoolCreatedEvent::new(
        block_number,
        supply_token_address,
        borrow_token_address,
        pool_address,
        pool_identifier,
        None,
        None,
    ))
}