//! ps reads the process snapshot. kill stops a process group through the process interface.
mod bindings {
    wit_bindgen::generate!({ path: "../../host/wit", world: "program", generate_all });
}
fn main() {
    let args: Vec<String> = std::env::args().collect();
    match std::path::Path::new(&args[0])
        .file_stem()
        .unwrap()
        .to_str()
        .unwrap()
    {
        "ps" => print!(
            "{}",
            std::fs::read_to_string("/proc/processes").expect("process snapshot")
        ),
        "kill" => {
            if args.len() < 2 {
                std::process::exit(2);
            }
            for pid in &args[1..] {
                let pid: u32 = pid.parse().expect("numeric pid");
                if let Err(error) = bindings::sausage::process::host::kill(pid) {
                    eprintln!("kill: {error}");
                    std::process::exit(1);
                }
            }
        }
        _ => std::process::exit(127),
    }
}