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use lazy_static::lazy_static;
use pyo3::prelude::*;
use pyo3_log::ResetHandle;

pub mod acl;
pub mod errors;
pub mod events;
pub mod http;
pub mod push;
pub mod rendezvous;

lazy_static! {
    static ref LOGGING_HANDLE: ResetHandle = pyo3_log::init();
}

/// Returns the hash of all the rust source files at the time it was compiled.
///
/// Used by python to detect if the rust library is outdated.
#[pyfunction]
fn get_rust_file_digest() -> &'static str {
    env!("SYNAPSE_RUST_DIGEST")
}

/// Formats the sum of two numbers as string.
#[pyfunction]
#[pyo3(text_signature = "(a, b, /)")]
fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
    Ok((a + b).to_string())
}

/// Reset the cached logging configuration of pyo3-log to pick up any changes
/// in the Python logging configuration.
///
#[pyfunction]
fn reset_logging_config() {
    LOGGING_HANDLE.reset();
}

/// The entry point for defining the Python module.
#[pymodule]
fn synapse_rust(py: Python<'_>, m: &PyModule) -> PyResult<()> {
    m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
    m.add_function(wrap_pyfunction!(get_rust_file_digest, m)?)?;
    m.add_function(wrap_pyfunction!(reset_logging_config, m)?)?;

    acl::register_module(py, m)?;
    push::register_module(py, m)?;
    events::register_module(py, m)?;
    rendezvous::register_module(py, m)?;

    Ok(())
}