ai: add tooltip for location/update time

src/app.rs

@@ -4,7 +4,7 @@ use cosmic::iced::{Color, Font, Limits, Rectangle, Subscription, window};
 use cosmic::iced::alignment::{Horizontal, Vertical};
 use cosmic::iced::platform_specific::shell::wayland::commands::popup::{destroy_popup, get_popup};
 use cosmic::widget::{self, autosize, container, rectangle_tracker::*};
-use cosmic::{iced_futures, prelude::*};
+use cosmic::{iced_futures, prelude::*, surface};
 use cosmic::applet::cosmic_panel_config::PanelAnchor;
 use cosmic::iced_core::Shadow;
 use futures_util::SinkExt;
@@ -17,8 +17,12 @@ const WEATHER_UPDATE_INTERVAL_MINUTES: u64 = 15;
 pub struct AppModel {
     /// Application state which is managed by the COSMIC runtime.
     core: cosmic::Core,
-    /// Current weather data
+    /// Current weather data (icon|temp)
     weather_text: String,
+    /// Detected location from wttr.in
+    location: String,
+    /// Last successful update time
+    last_updated: String,
     /// Full weather report for popup
     full_weather: String,
     /// Loading state
@@ -34,12 +38,13 @@ pub struct AppModel {
 /// Messages emitted by the applet.
 #[derive(Debug, Clone)]
 pub enum Message {
-    WeatherUpdate(Result<String, String>),
+    WeatherUpdate(Result<(String, String), String>),
     FullWeatherUpdate(Result<String, String>),
     RefreshWeather,
     TogglePopup,
     CloseRequested(window::Id),
     Rectangle(RectangleUpdate<u32>),
+    Surface(surface::Action),
 }
 
 impl cosmic::Application for AppModel {
@@ -63,6 +68,8 @@ impl cosmic::Application for AppModel {
         let app = AppModel {
             core,
             weather_text: "Loading...".to_string(),
+            location: String::new(),
+            last_updated: String::new(),
             full_weather: String::new(),
             is_loading: true,
             popup: None,
@@ -100,12 +107,29 @@ impl cosmic::Application for AppModel {
             }
         };
 
+        let has_popup = self.popup.is_some();
+        let tooltip_text = if self.location.is_empty() {
+            "Loading...".to_string()
+        } else if self.last_updated.is_empty() {
+            self.location.clone()
+        } else {
+            format!("{}\nUpdated: {}", self.location, self.last_updated)
+        };
+
+        let tooltip = self.core.applet.applet_tooltip(
+            button,
+            tooltip_text,
+            has_popup,
+            Message::Surface,
+            None,
+        );
+
         let limits = Limits::NONE.min_width(1.).min_height(1.);
 
         let element: Element<'_, Self::Message> = if let Some(tracker) = self.rectangle_tracker.as_ref() {
-            tracker.container(0, button).ignore_bounds(true).into()
+            tracker.container(0, tooltip).ignore_bounds(true).into()
         } else {
-            container(button).into()
+            container(tooltip).into()
         };
 
         autosize::autosize(
@@ -206,7 +230,11 @@ impl cosmic::Application for AppModel {
             Message::WeatherUpdate(result) => {
                 self.is_loading = false;
                 match result {
-                    Ok(weather) => self.weather_text = weather,
+                    Ok((location, weather)) => {
+                        self.location = location;
+                        self.weather_text = weather;
+                        self.last_updated = format_current_time();
+                    }
                     Err(e) => {
                         eprintln!("Weather fetch error: {}", e);
                         self.weather_text = if e.contains("network") || e.contains("timeout") {
@@ -307,17 +335,46 @@ impl cosmic::Application for AppModel {
                 }
                 Task::none()
             }
+            Message::Surface(action) => {
+                cosmic::task::message(cosmic::Action::Cosmic(
+                    cosmic::app::Action::Surface(action),
+                ))
+            }
         }
     }
 }
 
-async fn fetch_weather() -> Result<String, String> {
-    let response = reqwest::get(&format!("{}/?format=%c|%t", WTTR_URL))
+async fn fetch_weather() -> Result<(String, String), String> {
+    let response = reqwest::get(&format!("{}/?format=%l|%c|%t", WTTR_URL))
         .await
         .map_err(|e| e.to_string())?;
 
     let text = response.text().await.map_err(|e| e.to_string())?;
-    Ok(text.trim().to_string())
+    let text = text.trim();
+    // Format: "location|icon|temp"
+    let parts: Vec<&str> = text.splitn(3, '|').collect();
+    if parts.len() == 3 {
+        let location = parts[0].to_string();
+        let weather = format!("{}|{}", parts[1], parts[2]);
+        Ok((location, weather))
+    } else {
+        Ok((String::new(), text.to_string()))
+    }
+}
+
+fn format_current_time() -> String {
+    // Include %H:%M in the wttr.in request would add another field to parse;
+    // instead, record the local time when we receive the update.
+    // We use /proc/self or a simple UTC-based approach. Since the applet
+    // runs locally, we can shell out or use libc. For simplicity, use
+    // the `date` command which respects the user's timezone.
+    std::process::Command::new("date")
+        .arg("+%H:%M")
+        .output()
+        .ok()
+        .and_then(|o| String::from_utf8(o.stdout).ok())
+        .map(|s| s.trim().to_string())
+        .unwrap_or_default()
 }
 
 async fn fetch_full_weather() -> Result<String, String> {