adding bloat + use the copilot page this time

src/utils/query.rs

@@ -38,15 +38,13 @@ pub async fn get_macs_2_mac(machine_name: &str) -> io::Result<HashSet<MacAddr>>
 }
 
 pub async fn get_macs_1(machine_name: &str) -> io::Result<Vec<arpparse::IpNeighLine>> {
+    let dev = "br-lan";
     let ips = get_ips(machine_name).await?;
     let futures = ips.iter().map(|ip| {
         let ip = ip.to_canonical();
         async move {
-            let o = exec_command(
-                "ip",
-                ["neigh", "show", "to", &ip.to_string(), "dev", "br-lan"],
-            )
-            .await?;
+            let o =
+                exec_command("ip", ["neigh", "show", "to", &ip.to_string(), "dev", dev]).await?;
             if !o.status.success() {
                 return Err(io::Error::other(format!(
                     "`ip neigh` failed for {ip} (status: {st}): {err}",
@@ -56,14 +54,20 @@ pub async fn get_macs_1(machine_name: &str) -> io::Result<Vec<arpparse::IpNeighL
             };
             Ok(String::from_utf8_lossy(&o.stdout)
                 .lines()
-                .map(arpparse::parse_ip_neigh_line)
+                .flat_map(arpparse::parse_ip_neigh_line)
+                // .map(IpNeighLine::with_dev(dev)) // this could be after flatmap up there
                 .collect::<Vec<_>>())
         }
     });
     let res = futures::future::try_join_all(futures).await?; //  async move block errs.
     Ok(res
         .into_iter()
+        
         .flatten() /* resolve double vec */
-        .flatten() /* drop parse errors */
+        // .flatten() /* drop parse errors (flat_map cleared) */
         .collect())
 }
+
+pub async fn get_macs(machine_name: Option<&str>, ips: Option<impl IntoIterator<Item = IpAddr>>, dev: Option<&str>, state: Option<NUDState>) -> io::Result<Vec<IpNeighLine>> {
+    todo!()
+}