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// yt - A fully featured command line YouTube client
//
// Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
use std::fmt::{self, Display};
use log::{Level, debug, log_enabled};
use pyo3::{PyErr, Python, types::PyTracebackMethods};
#[derive(thiserror::Error, Debug)]
pub struct PythonError(pub String);
pub(crate) trait IntoPythonError<T>: Sized {
fn wrap_exc(self, py: Python<'_>) -> Result<T, PythonError>;
}
impl<T> IntoPythonError<T> for Result<T, PyErr> {
fn wrap_exc(self, py: Python<'_>) -> Result<T, PythonError> {
self.map_err(|exc| PythonError::from_exception(py, &exc))
}
}
impl Display for PythonError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "Python threw an exception: {}", self.0)
}
}
impl PythonError {
pub(super) fn from_exception(py: Python<'_>, exc: &PyErr) -> Self {
let buffer = process_exception(py, exc);
Self(buffer)
}
}
pub(super) fn process_exception(py: Python<'_>, err: &PyErr) -> String {
if log_enabled!(Level::Debug) {
let mut output = err.to_string();
if let Some(tb) = err.traceback(py) {
output.push('\n');
output.push_str(&tb.format().unwrap());
}
debug!("Python threw an exception: {output}");
}
err.to_string()
}
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