use anyhow::Result;
use std::path::Path;

/// Last-known-published version per package, so re-runs don't re-flag a
/// version already handled. Deliberately just one file per package for
/// now — this is where a real review-queue persistence layer plugs in
/// later (see SPEC.md > Architecture > Reviewer queue).
pub fn load_last_version(state_dir: &Path, name: &str) -> Option<String> {
    std::fs::read_to_string(state_dir.join(format!("{name}.version")))
        .ok()
        .map(|s| s.trim().to_string())
}

pub fn save_last_version(state_dir: &Path, name: &str, version: &str) -> Result<()> {
    std::fs::create_dir_all(state_dir)?;
    std::fs::write(state_dir.join(format!("{name}.version")), version)?;
    Ok(())
}