Auto-play a random legal card when the turn timeout expires

web/src/model.rs

@@ -132,6 +132,10 @@ pub struct GameView {
     /// ISO-8601 instant at which the next hand is dealt automatically.
     #[serde(default)]
     pub hand_end_deadline: Option<String>,
+    /// ISO-8601 instant at which the server plays a random legal card for
+    /// the player on turn.
+    #[serde(default)]
+    pub turn_deadline: Option<String>,
     #[serde(default)]
     pub your_turn: Option<bool>,
     /// Legal captures per hand card; present only for the player on turn.

web/src/pages/game.rs

@@ -139,7 +139,7 @@ pub fn GamePage(id: String) -> View {
                     }
                 }
                 Some(g) if g.phase == "lobby" => lobby_view(g),
-                Some(g) => table_view(g, on_hand_card, selected),
+                Some(g) => table_view(g, on_hand_card, selected, now),
             })
             (move || capture_choice.get_clone().map(|(card, options)| {
                 capture_picker(card, options, socket, capture_choice)
@@ -193,6 +193,7 @@ fn table_view(
     game: GameView,
     on_hand_card: impl Fn(String) + Copy + 'static,
     selected: Signal<Option<String>>,
+    now: Signal<f64>,
 ) -> View {
     // Own seat: the only player entry carrying a hand.
     let viewer_seat = game
@@ -218,6 +219,19 @@ fn table_view(
         format!("{name}'s turn")
     };
     let turn_cls = if my_turn { "turn-note you" } else { "turn-note" };
+    let countdown = game.turn_deadline.as_ref().map(|deadline| {
+        // A dynamic closure so only the ticking number re-renders.
+        let deadline_ms = js_sys::Date::parse(deadline);
+        view! {
+            span(class="turn-timer") {
+                "Auto-play in "
+                (move || {
+                    ((deadline_ms - now.get_clone()) / 1000.0).ceil().max(0.0) as i32
+                })
+                "s"
+            }
+        }
+    });
 
     let scores = game.scores.unwrap_or(Scores { a: 0, b: 0 });
     let table_cards = game
@@ -272,6 +286,7 @@ fn table_view(
                     (target_score) ")"
                 }
                 span(class=turn_cls) { (turn_note) }
+                (countdown)
             }
             div(class="table-grid") {
                 (top)