/// LFS operations reuse the crate-level `GitError`; this module re-exports it
/// and documents how each variant must map onto the Git LFS HTTP API status
/// codes (consumed by the future HTTP layer under `/{space}/{repo}.git/info/lfs`).
pub use crate::share::errors::GitError;

/// HTTP status for the LFS API:
/// - not found   → 404 (unknown repo / missing object / LFS disabled)
/// - forbidden   → 403 (unlock without ownership and without `force`)
/// - conflict    → 409 (duplicate lock / already exists)
/// - invalid arg → 400 (bad oid, size over cap, empty lock path)
/// - everything else → 500
pub fn http_status(err: &GitError) -> u16 {
    match err {
        GitError::NotFound => 404,
        GitError::Forbidden => 403,
        GitError::Conflict(_) => 409,
        GitError::InvalidArgument(_) => 400,
        GitError::Cache(_) | GitError::Git(_) | GitError::Internal(_) => 500,
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn maps_variants_to_http_codes() {
        assert_eq!(http_status(&GitError::NotFound), 404);
        assert_eq!(http_status(&GitError::Forbidden), 403);
        assert_eq!(http_status(&GitError::Conflict("dup".to_string())), 409);
        assert_eq!(
            http_status(&GitError::InvalidArgument("bad".to_string())),
            400
        );
        assert_eq!(http_status(&GitError::Internal("boom".to_string())), 500);
    }
}