From bd52ae071e3674face0cea76a1d631cedef00d83 Mon Sep 17 00:00:00 2001
From: batmanisko <odpad@batmanisko.cz>
Date: Wed, 23 Sep 2026 16:18:11 +0200
Subject: [PATCH] =?UTF-8?q?fix:=20kolo=20=C5=A1t=C4=9Bst=C3=AD=20to=C4=8D?=
 =?UTF-8?q?=C3=AD=20a=C5=BE=20od=20dvou=20mo=C5=BEnost=C3=AD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../src/components/modals/SpinWheelModal.tsx  | 24 +++++++++++++++----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/client/src/components/modals/SpinWheelModal.tsx b/client/src/components/modals/SpinWheelModal.tsx
index b984bc2..3a2c7eb 100644
--- a/client/src/components/modals/SpinWheelModal.tsx
+++ b/client/src/components/modals/SpinWheelModal.tsx
@@ -45,6 +45,8 @@ const WHEEL_SIZE = 360;
 const RADIUS = WHEEL_SIZE / 2 - 6;
 const SEGMENT_COLORS = 6;
 const MAX_LABELED_SEGMENTS = 40;
+/** Točit má smysl až od dvou možností — jediná zbylá se vybere rovnou. */
+const MIN_SPIN_ITEMS = 2;
 
 /** Kryptograficky náhodný index v rozsahu 0..n-1 (bez modulo zkreslení to u malých n nevadí). */
 function randomIndex(n: number): number {
@@ -198,9 +200,17 @@ export default function SpinWheelModal({ isOpen, onClose, menus, onPick }: Reado
         setRotation(r => r % 360);
     };
 
+    // Zbyla jediná možnost — není co losovat, vybere se rovnou (lze pokračovat dál / převzít)
+    const onlyOne = wheelItems.length === 1;
+    useEffect(() => {
+        if (spinning || !onlyOne) return;
+        if (phase === 'place' && place?.id !== places[0].id) setPlace(places[0]);
+        else if (phase === 'dish' && dish?.name !== dishes[0].name) setDish(dishes[0]);
+    }, [onlyOne, phase, places, dishes, spinning, place?.id, dish?.name]);
+
     const spin = () => {
         const n = wheelItems.length;
-        if (n === 0 || spinning) return;
+        if (n < MIN_SPIN_ITEMS || spinning) return;
         const index = randomIndex(n);
         const angle = 360 / n;
         const jitter = (Math.random() - 0.5) * angle * 0.6;
@@ -337,17 +347,21 @@ export default function SpinWheelModal({ isOpen, onClose, menus, onPick }: Reado
                         )}
                         <div className={`spin-result${result ? ' visible' : ''}`} aria-live="polite">
                             {result && (phase === 'place'
-                                ? <>Padlo: <strong>{place!.label}</strong> <small>({place!.kind === 'menu' ? 'dnešní menu' : 'rozvoz'})</small></>
-                                : <>Padlo: <strong>{dish!.name}</strong>{dish!.price && <small> ({dish!.price})</small>}</>)}
+                                ? <>{onlyOne ? 'Zbývá jediná možnost' : 'Padlo'}: <strong>{place!.label}</strong> <small>({place!.kind === 'menu' ? 'dnešní menu' : 'rozvoz'})</small></>
+                                : <>{onlyOne ? 'Zbývá jediné jídlo' : 'Padlo'}: <strong>{dish!.name}</strong>{dish!.price && <small> ({dish!.price})</small>}</>)}
                         </div>
                         <div className="spin-actions">
-                            <Button onClick={spin} disabled={spinning || wheelItems.length === 0} className="spin-button">
-                                {spinning ? 'Točí se…' : result ? 'Točit znovu' : 'Roztočit!'}
+                            <Button onClick={spin} disabled={spinning || wheelItems.length < MIN_SPIN_ITEMS} className="spin-button"
+                                title={wheelItems.length < MIN_SPIN_ITEMS ? 'Na kole musí být aspoň 2 možnosti' : undefined}>
+                                {spinning ? 'Točí se…' : result && !onlyOne ? 'Točit znovu' : 'Roztočit!'}
                             </Button>
                             {result && !spinning && wheelItems.length > 1 && (
                                 <Button variant="outline-primary" onClick={removeResultAndRespin}>Vyřadit a točit znovu</Button>
                             )}
                         </div>
+                        {onlyOne && (
+                            <small className="text-muted">Na kole musí být aspoň 2 možnosti — vrať nějaké vyřazené, nebo pokračuj s touto.</small>
+                        )}
                     </div>
                     <div className="spin-options">
                         <div className="spin-options-header">