From 810e212b4b255914cfa73e85b52ec23db281c0e3 Mon Sep 17 00:00:00 2001
From: salmonik <salmonik@tuta.io>
Date: Thu, 29 Oct 2026 23:06:22 +0100
Subject: v3.1.0: warn on shrink, but let a live round finish

---
 src/client/core.rs | 22 ++++++++++++++++++++++
 src/client/ui.rs   | 10 ++++++++++
 2 files changed, 32 insertions(+)

(limited to 'src/client')

diff --git a/src/client/core.rs b/src/client/core.rs
index 8411d47..95fa050 100644
--- a/src/client/core.rs
+++ b/src/client/core.rs
@@ -138,6 +138,28 @@ impl ClientCore {
         self.game.is_in_game()
     }
 
+    /// True while a round is running and leaving would forfeit a reserved bet.
+    /// The terminal may shrink during one of these without interrupting it.
+    pub fn is_live_game(&self) -> bool {
+        match self
+            .game
+            .get_current_state()
+            .map(|state| state.game_type.as_str())
+        {
+            Some("blackjack") => self
+                .game
+                .blackjack_state()
+                .is_some_and(|hand| hand.phase == "player"),
+            Some("crash") => self.crash_started.is_some(),
+            _ => false,
+        }
+    }
+
+    /// Redraw the current board, for terminal resizes.
+    pub fn refresh_board(&self) -> Vec<Effect> {
+        self.board_effects()
+    }
+
     pub fn prompt_effect(&self) -> Option<Effect> {
         if self.is_in_game() {
             return None;
diff --git a/src/client/ui.rs b/src/client/ui.rs
index 6161166..ca001c2 100644
--- a/src/client/ui.rs
+++ b/src/client/ui.rs
@@ -261,6 +261,16 @@ pub fn terminal_too_small(columns: u16, rows: u16) -> Option<String> {
     ))
 }
 
+/// One-line warning for a terminal that shrank while the client is running.
+pub fn terminal_size_warning(columns: u16, rows: u16) -> Option<String> {
+    if columns >= MIN_COLUMNS && rows >= MIN_ROWS {
+        return None;
+    }
+    Some(format!(
+        "WARNING: terminal is {columns}x{rows}; zagan.bet needs at least {MIN_COLUMNS}x{MIN_ROWS}. Resize to fit."
+    ))
+}
+
 /// Render remembered hosts.
 ///
 /// Two addresses that present the same certificate key are the same server, so
-- 
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