feat(cli): improve local IP detection

.changes/improve-local-ip-detection.md

@@ -0,0 +1,6 @@
+---
+"cli.rs": patch
+"cli.js": patch
+---
+
+Improve local IP address detection with user selection.

tooling/cli/src/dev.rs

@@ -11,9 +11,9 @@ use crate::{
   interface::{AppInterface, DevProcess, ExitReason, Interface},
   CommandExt, Result,
 };
-use clap::{ArgAction, Parser};
 
 use anyhow::{bail, Context};
+use clap::{ArgAction, Parser};
 use log::{error, info, warn};
 use once_cell::sync::OnceCell;
 use shared_child::SharedChild;
@@ -88,7 +88,34 @@ fn command_internal(mut options: Options) -> Result<()> {
 
 fn local_ip_address() -> &'static IpAddr {
   static LOCAL_IP: OnceCell<IpAddr> = OnceCell::new();
-  LOCAL_IP.get_or_init(|| local_ip_address::local_ip().expect("failed to resolve local IP address"))
+  LOCAL_IP.get_or_init(|| {
+    let addresses: Vec<IpAddr> = local_ip_address::list_afinet_netifas()
+      .expect("failed to list networks")
+      .into_iter()
+      .map(|(_, ipaddr)| ipaddr)
+      .filter(|ipaddr| match ipaddr {
+        IpAddr::V4(i) => i != &Ipv4Addr::LOCALHOST,
+        _ => false,
+      })
+      .collect();
+    match addresses.len() {
+      0 => panic!("No external IP detected."),
+      1 => {
+        let ipaddr = addresses.first().unwrap();
+        log::info!("Detected external IP {ipaddr}.");
+        *ipaddr
+      }
+      _ => {
+        let selected = dialoguer::Select::with_theme(&dialoguer::theme::ColorfulTheme::default())
+          .with_prompt("What external IP should we use for your development server?")
+          .items(&addresses)
+          .default(0)
+          .interact()
+          .expect("failed to select external IP");
+        *addresses.get(selected).unwrap()
+      }
+    }
+  })
 }
 
 pub fn setup(options: &mut Options, mobile: bool) -> Result<AppInterface> {