nautilus-databento 0.58.0

// -------------------------------------------------------------------------------------------------
//  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.
// -------------------------------------------------------------------------------------------------

#![cfg(feature = "python")]

use std::{cell::RefCell, path::PathBuf, rc::Rc};

use nautilus_common::{
    cache::Cache, clock::TestClock, live::runner::replace_data_event_sender, messages::DataEvent,
};
use nautilus_databento::{
    common::DATABENTO,
    factories::{DatabentoDataClientFactory, DatabentoLiveClientConfig},
    python,
};
use nautilus_model::identifiers::ClientId;
use nautilus_system::get_global_pyo3_registry;
use pyo3::{Py, Python, types::PyModule};
use rstest::rstest;

#[rstest]
fn test_databento_python_data_factory_extracts_from_registry() {
    setup_data_event_sender();
    Python::initialize();

    Python::attach(|py| {
        register_databento_python_module(py);
        assert_data_factory_extracts_from_python_object(py);
    });
}

fn setup_data_event_sender() {
    let (sender, _receiver) = tokio::sync::mpsc::unbounded_channel::<DataEvent>();
    replace_data_event_sender(sender);
}

fn register_databento_python_module(py: Python<'_>) {
    let module = PyModule::new(py, "databento").expect("Databento module should be created");
    python::databento(py, &module).expect("Databento Python module should register");
}

fn assert_data_factory_extracts_from_python_object(py: Python<'_>) {
    let publishers_filepath = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("publishers.json");
    let factory = Py::new(py, DatabentoDataClientFactory::new())
        .expect("factory should convert to Python object")
        .into_any();
    let config = Py::new(
        py,
        DatabentoLiveClientConfig::new(
            "00000000000000000000000000000000",
            publishers_filepath.clone(),
            false,
            true,
        ),
    )
    .expect("config should convert to Python object")
    .into_any();
    let registry = get_global_pyo3_registry();

    let extracted_factory = registry
        .extract_factory(py, factory)
        .expect("data factory should extract");
    let extracted_config = registry
        .extract_config(py, config)
        .expect("data config should extract");
    let databento_config = extracted_config
        .as_any()
        .downcast_ref::<DatabentoLiveClientConfig>()
        .expect("data config should downcast");
    let cache = Rc::new(RefCell::new(Cache::default()));
    let clock = Rc::new(RefCell::new(TestClock::new()));
    let client = extracted_factory
        .create(
            "DATABENTO-DATA-EXTRACTED",
            extracted_config.as_ref(),
            cache.into(),
            clock,
        )
        .expect("extracted factory should create data client");

    assert_eq!(extracted_factory.name(), DATABENTO);
    assert_eq!(extracted_factory.config_type(), "DatabentoLiveClientConfig");
    assert_eq!(databento_config.publishers_filepath, publishers_filepath);
    assert_eq!(
        client.client_id(),
        ClientId::from("DATABENTO-DATA-EXTRACTED")
    );
}