use pyo3::{exceptions::PyTypeError, prelude::*};

/// Create a GIL-independent reference (similar to [`Arc`](std::sync::Arc))
pub fn detach<T>(bound: &Bound<T>) -> Py<T> {
    let py = bound.py();
    bound.as_unbound().clone_ref(py)
}

pub fn validate_type_by_name(bound: &Bound<PyAny>, expected_type_name: &str) -> PyResult<()> {
    let py_type = bound.get_type();
    let type_name = py_type.name()?;
    let type_name = type_name.to_str()?;

    if type_name != expected_type_name {
        let fully_qualified_type_name = py_type.fully_qualified_name()?;
        let fully_qualified_type_name = fully_qualified_type_name.to_str()?;
        return Err(PyTypeError::new_err(format!("expected an instance of {expected_type_name} but got an instance of {fully_qualified_type_name}")));
    }

    return Ok(());
}