use pyo3::prelude::*;

mod dagops;

mod exceptions;

mod util;

#[pymodule]

fn pyo3_rustext(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {

    m.add(

        "__doc__",

        "Mercurial core concepts - Rust implementation exposed via PyO3",

    )?;

    // the module's __name__ is pyo3_rustext, not mercurial.pyo3_rustext

    // (at least at this point).

    let name: String = m.getattr("__name__")?.extract()?;

    let dotted_name = format!("mercurial.{}", name);

    m.add_submodule(&dagops::init_module(py, &dotted_name)?)?;

    m.add("GraphError", py.get_type::<exceptions::GraphError>())?;

    Ok(())

}