feat(questions): add questions page with open count badge

Add /questions page and a nav badge with the open count.
Core decides which question is open. The page only shows and answers.
Move RatingStars out of BacklogCard so both pages share it.

README.md

@@ -252,6 +252,17 @@ flowchart LR
     Dialog -->|"community row, login"| Owners["Core /api/stats/owners"]
     Landing["Landing user tiles, login"] --> Users["Auth /api/stats/users"]
 ```
+- `/questions` (`QuestionsPage`, nav item with the open count; the badge is hidden on the page, whose title shows the
+  live count) lists one card per game with an open question (Start it? / Finished? / Dropped? / Rate it?). Core decides
+  which question is open; `src/utils/questions.js` only loads the list and sends the answer. A yes to Finished? gets
+  the Rate it? card back at once. `409` / `404` reload the list. `RatingStars` is shared with `BacklogCard`.
+
+```mermaid
+flowchart LR
+    Header["AppHeader badge"] --> Count["Core /api/library/questions/count"]
+    Page["QuestionsPage"] --> List["Core /api/library/questions"]
+    Page -->|"Yes / No / stars"| Answer["Core POST /api/library/questions/{appid}"]
+```
 - Owner and user lists (`src/components/people/`, `src/utils/people.js`) need a login and show listed users by name
   (a link to `/u/<name>`), everyone else as "+N private", the viewer as "You". The setting "show me in owner lists" is
   saved on its own (`PUT /api/users/settings/owner-lists`), never through `saveSettings`.

public/i18n/de.json

@@ -392,6 +392,9 @@
     "INBOX": "Postfach",
     "INBOX_UNREAD_one": "Postfach, {{count}} neue Nachricht",
     "INBOX_UNREAD_other": "Postfach, {{count}} neue Nachrichten",
+    "QUESTIONS": "Fragen",
+    "QUESTIONS_OPEN_one": "Fragen, {{count}} offen",
+    "QUESTIONS_OPEN_other": "Fragen, {{count}} offen",
     "WHATS_NEW": "Neuigkeiten",
     "ADMIN_NEWS": "Neuigkeiten verwalten",
     "ADMIN_BROADCASTS": "Rundmail",
@@ -1291,5 +1294,31 @@
       "ACHIEVEMENTS": "Neue Erfolge oder Trophäen",
       "STATUS": "Statuswechsel"
     }
+  },
+  "QUESTIONS": {
+    "TITLE": "Fragen",
+    "TITLE_COUNT": "Fragen ({{count}})",
+    "EMPTY": "Gerade gibt es nichts zu entscheiden.",
+    "GONE": "Diese Frage ist schon beantwortet. Die Liste wird neu geladen.",
+    "YES": "Ja",
+    "NO": "Nein",
+    "SKIP": "Überspringen",
+    "START": {
+      "ASK": "Angefangen?",
+      "REASON": "Du hast {{playtime}} gespielt, das Spiel liegt aber noch im Backlog."
+    },
+    "FINISHED": {
+      "ASK": "Durchgespielt?",
+      "REASON": "Du hast {{playtime}} gespielt.",
+      "REASON_TTB": "Du hast {{playtime}} gespielt. Die meisten brauchen {{ttb}}."
+    },
+    "DROPPED": {
+      "ASK": "Abgebrochen?",
+      "REASON": "Keine Spielzeit seit {{date}}."
+    },
+    "RATE": {
+      "ASK": "Bewerten?",
+      "REASON": "Du hast es durchgespielt. Wie war es?"
+    }
   }
 }

public/i18n/en.json

@@ -392,6 +392,9 @@
     "INBOX": "Inbox",
     "INBOX_UNREAD_one": "Inbox, {{count}} new note",
     "INBOX_UNREAD_other": "Inbox, {{count}} new notes",
+    "QUESTIONS": "Questions",
+    "QUESTIONS_OPEN_one": "Questions, {{count}} open",
+    "QUESTIONS_OPEN_other": "Questions, {{count}} open",
     "WHATS_NEW": "What's new",
     "ADMIN_NEWS": "News",
     "ADMIN_BROADCASTS": "Mail",
@@ -1291,5 +1294,31 @@
       "ACHIEVEMENTS": "New achievements or trophies",
       "STATUS": "Status changes"
     }
+  },
+  "QUESTIONS": {
+    "TITLE": "Questions",
+    "TITLE_COUNT": "Questions ({{count}})",
+    "EMPTY": "Nothing to decide right now.",
+    "GONE": "That question was already answered. The list is loaded again.",
+    "YES": "Yes",
+    "NO": "No",
+    "SKIP": "Skip",
+    "START": {
+      "ASK": "Start it?",
+      "REASON": "You played {{playtime}}, but it is still in your backlog."
+    },
+    "FINISHED": {
+      "ASK": "Finished?",
+      "REASON": "You played {{playtime}}.",
+      "REASON_TTB": "You played {{playtime}}. Most players need {{ttb}}."
+    },
+    "DROPPED": {
+      "ASK": "Dropped?",
+      "REASON": "No playtime since {{date}}."
+    },
+    "RATE": {
+      "ASK": "Rate it?",
+      "REASON": "You finished it. How was it?"
+    }
   }
 }

src/App.jsx

@@ -14,6 +14,7 @@ import AdminHintsPage from './pages/AdminHintsPage.jsx';
 import AdminBroadcastPage from './pages/AdminBroadcastPage.jsx';
 import AdminNewsPage from './pages/AdminNewsPage.jsx';
 import InboxPage from './pages/InboxPage.jsx';
+import QuestionsPage from './pages/QuestionsPage.jsx';
 import WhatsNewPage from './pages/WhatsNewPage.jsx';
 import WelcomePage from './pages/WelcomePage.jsx';
 import WelcomeGate from './components/WelcomeGate.jsx';
@@ -93,6 +94,7 @@ function App() {
                             <Route path="/settings" element={<SettingsPage/>}/>
                             <Route path="/whats-new" element={<WhatsNewPage/>}/>
                             <Route path="/inbox" element={<InboxPage/>}/>
+                            <Route path="/questions" element={<QuestionsPage/>}/>
                             <Route path="/welcome" element={<WelcomePage/>}/>
                             <Route path="/audit/games" element={<GameCatalogPage/>}/>
                             <Route path="/audit/links" element={<LinkQueuePage/>}/>

src/App.test.jsx

@@ -35,6 +35,7 @@ describe('App', () => {
             'GET /api/library/steam-profile': json(200, null),
             'POST /api/auth/refresh': json(401, {}),
             'GET /api/inbox': json(200, {results: [], unread: 0}),
+            'GET /api/library/questions/count': json(200, {count: 0}),
         });
         const {router} = renderWithProviders(<App/>, {entries: ['/library']});
         await waitFor(() => expect(screen.getByText('Half-Life 2')).toBeTruthy());

src/components/AppHeader.jsx

@@ -1,7 +1,7 @@
 import {useEffect, useState} from 'react';
 import {Link, NavLink, useLocation, useNavigate} from 'react-router-dom';
 import {useTranslation} from 'react-i18next';
-import {Bell, ChartColumn, Coins, Dices, Eye, Languages, LayoutDashboard, Library, Link2, LogOut, Mail, Megaphone, Moon, Newspaper, ScrollText, Search, Settings, Shield, Sun, Users} from 'lucide-react';
+import {Bell, ChartColumn, CircleQuestionMark, Coins, Dices, Eye, Languages, LayoutDashboard, Library, Link2, LogOut, Mail, Megaphone, Moon, Newspaper, ScrollText, Search, Settings, Shield, Sun, Users} from 'lucide-react';
 import {toast} from 'sonner';
 
 import {Badge} from '@/components/ui/badge';
@@ -26,6 +26,7 @@ import useSteamProfile from '../hooks/useSteamProfile.js';
 import {fetchPendingCount, ROLES, viewAs} from '../utils/admin.js';
 import {canCorrect} from '../utils/corrections.js';
 import {fetchInbox} from '../utils/inbox.js';
+import {fetchQuestionCount} from '../utils/questions.js';
 import {expireSession, markSession} from '../utils/auth.js';
 
 const NAV_ITEMS = [
@@ -33,10 +34,18 @@ const NAV_ITEMS = [
     // The wishlist and the backlog order are tabs of the library.
     {to: '/library', labelKey: 'NAV.LIBRARY', Icon: Library, alsoActiveOn: ['/wishlist', '/backlog']},
     {to: '/play-next', labelKey: 'NAV.PLAY_NEXT', Icon: Dices},
+    {to: '/questions', labelKey: 'NAV.QUESTIONS', Icon: CircleQuestionMark},
     {to: '/stats', labelKey: 'NAV.STATS', Icon: ChartColumn},
     {to: '/', labelKey: 'NAV.COMMUNITY', Icon: Users, iconOnly: true},
 ];
 
+const CountBadge = ({count}) => (
+    <span aria-hidden="true"
+          className="absolute -top-1 -right-1 flex size-4 items-center justify-center rounded-full bg-primary text-[10px] font-bold text-primary-foreground">
+        {count > 9 ? '9+' : count}
+    </span>
+);
+
 const navLinkClass = (isActive) => cn(
     'flex items-center gap-2 rounded-lg px-1 py-2 text-sm font-medium transition-colors sm:px-3',
     isActive
@@ -86,6 +95,22 @@ export default function AppHeader({isAuthenticated, onLogout}) {
     }, [isAuthenticated, pathname]);
     const shownUnread = pathname === '/inbox' ? 0 : unread;
 
+    // Loaded again on every page change. The questions page shows the live count in its title, so it has no badge.
+    const [openQuestions, setOpenQuestions] = useState(0);
+    useEffect(() => {
+        if (!isAuthenticated) return undefined;
+        let current = true;
+        fetchQuestionCount().then(({ok, data}) => {
+            if (current && ok) setOpenQuestions(data.count);
+        });
+        return () => {
+            current = false;
+        };
+    }, [isAuthenticated, pathname]);
+    const shownQuestions = pathname === '/questions' ? 0 : openQuestions;
+    // Below sm the Questions icon shows only with open questions or on its own page; the points chip then gives up its number.
+    const questionsIconHidden = openQuestions === 0 && pathname !== '/questions';
+
     const switchRole = async (role) => {
         try {
             const response = await viewAs(role === currentUser.role ? null : role);
@@ -129,13 +154,19 @@ export default function AppHeader({isAuthenticated, onLogout}) {
 
                 {isAuthenticated && (
                     <nav className="flex items-center sm:gap-1">
-                        {NAV_ITEMS.map(({to, labelKey, Icon, alsoActiveOn = [], iconOnly}) => (
+                        {NAV_ITEMS.map(({to, labelKey, Icon, alsoActiveOn = [], iconOnly}) => {
+                            const count = to === '/questions' ? shownQuestions : 0;
+                            return (
                                 <NavLink key={to} to={to} title={t(labelKey)}
-                                     className={({isActive}) => navLinkClass(isActive || alsoActiveOn.includes(pathname))}>
+                                         aria-label={count > 0 ? t(`${labelKey}_OPEN`, {count}) : undefined}
+                                         className={({isActive}) => cn(navLinkClass(isActive || alsoActiveOn.includes(pathname)), 'relative',
+                                         to === '/questions' && questionsIconHidden && 'max-sm:hidden')}>
                                     <Icon className="size-4"/>
                                     {!iconOnly && <span className="hidden lg:inline">{t(labelKey)}</span>}
+                                    {count > 0 && <CountBadge count={count}/>}
                                 </NavLink>
-                        ))}
+                            );
+                        })}
                     </nav>
                 )}
 
@@ -146,19 +177,17 @@ export default function AppHeader({isAuthenticated, onLogout}) {
                     )}
                     {isAuthenticated && wallet && (
                         <Button asChild variant="ghost" size="sm" title={`${t('POINTS.TITLE')}: ${wallet.balance}`} className="min-w-0 shrink lg:shrink-0">
-                            <Link to="/points"><Coins className="text-primary"/><span className="min-w-0 truncate tabular-nums">{wallet.balance}</span></Link>
+                            <Link to="/points" aria-label={`${t('POINTS.TITLE')}: ${wallet.balance}`}>
+                                <Coins className="text-primary"/>
+                                <span className={cn('min-w-0 truncate tabular-nums', !questionsIconHidden && 'max-sm:hidden')}>{wallet.balance}</span>
+                            </Link>
                         </Button>
                     )}
                     {isAuthenticated && (
                         <Button asChild variant="ghost" size="icon" title={t('NAV.INBOX')} className="relative shrink-0">
                             <Link to="/inbox" aria-label={shownUnread > 0 ? t('NAV.INBOX_UNREAD', {count: shownUnread}) : t('NAV.INBOX')}>
                                 <Bell/>
-                                {shownUnread > 0 && (
-                                    <span aria-hidden="true"
-                                          className="absolute -top-1 -right-1 flex size-4 items-center justify-center rounded-full bg-primary text-[10px] font-bold text-primary-foreground">
-                                        {shownUnread > 9 ? '9+' : shownUnread}
-                                    </span>
-                                )}
+                                {shownUnread > 0 && <CountBadge count={shownUnread}/>}
                             </Link>
                         </Button>
                     )}

src/components/AppHeader.points.test.jsx

@@ -18,13 +18,44 @@ function Load() {
     return <button onClick={reloadWallet}>load</button>;
 }
 
+async function loadChip(count) {
+    localStorage.setItem('tbp_session', '1');
+    fetchRoutes({
+        'GET /api/users/me': json(200, {role: 'USER', activeRole: 'USER'}),
+        'GET /api/library/steam-profile': json(200, {}),
+        'GET /api/inbox': json(200, {results: [], unread: 0}),
+        'GET /api/library/questions/count': json(200, {count}),
+        'GET /api/rewards/wallet': json(200, {balance: 135, catalog: [], owned: [], equipped: {}, history: []}),
+    });
+    renderWithProviders(<><Load/><AppHeader isAuthenticated onLogout={() => {}}/></>);
+    fireEvent.click(screen.getByText('load'));
+    return screen.findByTitle('POINTS.TITLE: 135');
+}
+
 describe('AppHeader points chip', () => {
+    it('hides the number below sm while the questions icon shows, and keeps the balance as label', async () => {
+        const chip = await loadChip(2);
+        await screen.findByRole('link', {name: 'NAV.QUESTIONS_OPEN:2'});
+
+        expect(chip.getAttribute('aria-label')).toBe('POINTS.TITLE: 135');
+        expect(screen.getByText('135').className).toContain('max-sm:hidden');
+    });
+
+    it('shows the number at every width while the questions icon is hidden', async () => {
+        const chip = await loadChip(0);
+        await screen.findByTitle('NAV.QUESTIONS');
+
+        expect(chip.getAttribute('aria-label')).toBe('POINTS.TITLE: 135');
+        expect(screen.getByText('135').className).not.toContain('max-sm:hidden');
+    });
+
     it('shows the balance as a link to the points page once the wallet is loaded', async () => {
         localStorage.setItem('tbp_session', '1');
         fetchRoutes({
             'GET /api/users/me': json(200, {role: 'USER', activeRole: 'USER'}),
             'GET /api/library/steam-profile': json(200, {}),
             'GET /api/inbox': json(200, {results: [], unread: 0}),
+            'GET /api/library/questions/count': json(200, {count: 0}),
             'GET /api/rewards/wallet': json(200, {balance: 135, catalog: [], owned: [], equipped: {}, history: []}),
         });
         renderWithProviders(<><Load/><AppHeader isAuthenticated onLogout={() => {}}/></>);

src/components/AppHeader.test.jsx

@@ -19,7 +19,8 @@ afterEach(() => {
 const loggedInAs = (me, routes = {}, options = {}) => {
     localStorage.setItem('tbp_session', '1');
     fetchRoutes({'GET /api/users/me': json(200, me), 'GET /api/library/steam-profile': json(200, {}),
-        'GET /api/inbox': json(200, {results: [], unread: 0}), ...routes});
+        'GET /api/inbox': json(200, {results: [], unread: 0}),
+        'GET /api/library/questions/count': json(200, {count: 0}), ...routes});
     renderWithProviders(<AppHeader isAuthenticated onLogout={() => {}}/>, options);
 };
 
@@ -86,6 +87,44 @@ describe('AppHeader', () => {
         expect(link.textContent).toBe('');
     });
 
+    it('shows how many questions are open', async () => {
+        loggedInAs({role: 'USER', activeRole: 'USER'}, {'GET /api/library/questions/count': json(200, {count: 12})});
+
+        const link = await screen.findByRole('link', {name: 'NAV.QUESTIONS_OPEN:12'});
+
+        expect(link.getAttribute('href')).toBe('/questions');
+        expect(link.textContent).toBe('NAV.QUESTIONS9+');
+    });
+
+    it('hides the questions icon below sm while no question is open', async () => {
+        loggedInAs({role: 'USER', activeRole: 'USER'});
+
+        expect((await screen.findByTitle('NAV.QUESTIONS')).className).toContain('max-sm:hidden');
+    });
+
+    it('keeps the questions icon at every width while questions are open', async () => {
+        loggedInAs({role: 'USER', activeRole: 'USER'}, {'GET /api/library/questions/count': json(200, {count: 2})});
+
+        expect((await screen.findByRole('link', {name: 'NAV.QUESTIONS_OPEN:2'})).className).not.toContain('max-sm:hidden');
+    });
+
+    it('keeps the questions icon below sm on the questions page, without a badge', async () => {
+        loggedInAs({role: 'USER', activeRole: 'USER'}, {'GET /api/library/questions/count': json(200, {count: 0})},
+            {entries: ['/questions']});
+
+        expect((await screen.findByTitle('NAV.QUESTIONS')).className).not.toContain('max-sm:hidden');
+    });
+
+    it('shows no question count on the questions page, whose title has it', async () => {
+        loggedInAs({role: 'USER', activeRole: 'USER'}, {'GET /api/library/questions/count': json(200, {count: 3})},
+            {entries: ['/questions']});
+
+        await vi.waitFor(() => expect(fetch).toHaveBeenCalledWith(expect.stringContaining('/api/library/questions/count'), expect.anything()));
+
+        expect(screen.getByTitle('NAV.QUESTIONS').textContent).toBe('NAV.QUESTIONS');
+        expect(screen.queryByRole('link', {name: 'NAV.QUESTIONS_OPEN:3'})).toBeNull();
+    });
+
     it('offers the admin page and "view as" to an admin', async () => {
         loggedInAs({role: 'PLATFORM_ADMIN', activeRole: 'PLATFORM_ADMIN'},
             {'GET /api/admin/users/pending-count': json(200, {count: 0})});

src/components/BacklogCard.jsx

@@ -1,14 +1,14 @@
 import {useEffect, useState} from 'react';
 import {useTranslation} from 'react-i18next';
 import {toast} from 'sonner';
-import {ListTodo, Loader2, Star} from 'lucide-react';
+import {ListTodo, Loader2} from 'lucide-react';
 
 import {Button} from '@/components/ui/button';
 import {Card} from '@/components/ui/card';
 import {Label} from '@/components/ui/label';
 import {Select, SelectContent, SelectItem, SelectTrigger, SelectValue} from '@/components/ui/select';
 import {Textarea} from '@/components/ui/textarea';
-import {cn} from '@/lib/utils';
+import RatingStars from './RatingStars.jsx';
 import {STATUS_META} from './GameStatusBadge.jsx';
 import {changedFields, NO_PRIORITY, saveBacklogEntry} from '../utils/backlog.js';
 import {GAME_PRIORITIES, GAME_STATUSES, MAX_NOTES_LENGTH} from '../utils/limits.js';
@@ -104,21 +104,7 @@ export default function BacklogCard({game, onSaved}) {
 
                     <div className="space-y-2">
                         <Label id="backlog-rating">{t('BACKLOG.RATING_LABEL')}</Label>
-                        <div role="group" aria-labelledby="backlog-rating" className="flex h-9 items-center gap-1">
-                            {[1, 2, 3, 4, 5].map((n) => (
-                                <button
-                                    key={n}
-                                    type="button"
-                                    aria-label={t('BACKLOG.RATING_STARS', {count: n})}
-                                    aria-pressed={form.rating === n}
-                                    onClick={() => set('rating')(form.rating === n ? 0 : n)}
-                                    className="rounded-sm p-0.5 outline-none focus-visible:ring-[3px] focus-visible:ring-ring/50"
-                                >
-                                    <Star className={cn('size-6 transition-colors',
-                                        n <= form.rating ? 'fill-amber-400 text-amber-400' : 'text-muted-foreground/40 hover:text-amber-400')}/>
-                                </button>
-                            ))}
-                        </div>
+                        <RatingStars value={form.rating} onChange={set('rating')} labelledBy="backlog-rating"/>
                     </div>
                 </div>
 

src/components/QuestionCard.jsx

@@ -0,0 +1,64 @@
+import {Link} from 'react-router-dom';
+import {useTranslation} from 'react-i18next';
+
+import {Button} from '@/components/ui/button';
+import {Card} from '@/components/ui/card';
+import FitText from './FitText.jsx';
+import GameCover from './GameCover.jsx';
+import RatingStars from './RatingStars.jsx';
+import {formatDate} from '../utils/format.js';
+import {formatPlaytime} from '../utils/games.js';
+
+/**
+ * One open question of one game. The page decides what an answer does.
+ *
+ * @param item a result of `GET /api/library/questions`
+ * @param busy true while an answer is on its way
+ * @param onAnswer `({yes, rating?})`; a yes to the rating question comes with the stars
+ */
+export default function QuestionCard({item, busy, onAnswer}) {
+    const {t, i18n} = useTranslation();
+    const {appid, name, imageUrl, question, playtimeMinutes, normallyMinutes, lastActivity} = item;
+    const reasonKey = question === 'FINISHED' && normallyMinutes > 0 ? 'FINISHED.REASON_TTB' : `${question}.REASON`;
+    const reason = t(`QUESTIONS.${reasonKey}`, {
+        playtime: formatPlaytime(playtimeMinutes),
+        ttb: formatPlaytime(normallyMinutes),
+        date: lastActivity ? formatDate(lastActivity, i18n.language) : '',
+    });
+    const askId = `question-${appid}`;
+
+    return (
+        <Card className="flex-row items-start gap-3 p-4">
+            <Link to={`/library/${appid}`} className="w-16 shrink-0 sm:w-24">
+                <GameCover appid={appid} imageUrl={imageUrl}/>
+            </Link>
+            <div className="min-w-0 flex-1 space-y-2">
+                <Link to={`/library/${appid}`} className="@container block min-w-0 font-medium hover:text-primary">
+                    <FitText text={name ?? `App ${appid}`}/>
+                </Link>
+                <p id={askId} className="text-base font-semibold">{t(`QUESTIONS.${question}.ASK`)}</p>
+                <p className="text-sm text-muted-foreground">{reason}</p>
+                {question === 'RATE' ? (
+                    <div className="flex flex-wrap items-center gap-2">
+                        <RatingStars value={0} labelledBy={askId} disabled={busy}
+                                     onChange={(rating) => onAnswer({yes: true, rating})}/>
+                        <Button type="button" variant="outline" size="sm" disabled={busy}
+                                onClick={() => onAnswer({yes: false})}>
+                            {t('QUESTIONS.SKIP')}
+                        </Button>
+                    </div>
+                ) : (
+                    <div className="flex flex-wrap gap-2">
+                        <Button type="button" size="sm" disabled={busy} onClick={() => onAnswer({yes: true})}>
+                            {t('QUESTIONS.YES')}
+                        </Button>
+                        <Button type="button" variant="outline" size="sm" disabled={busy}
+                                onClick={() => onAnswer({yes: false})}>
+                            {t('QUESTIONS.NO')}
+                        </Button>
+                    </div>
+                )}
+            </div>
+        </Card>
+    );
+}

src/components/QuestionCard.test.jsx

@@ -0,0 +1,51 @@
+// @vitest-environment jsdom
+import {afterEach, describe, expect, it, vi} from 'vitest';
+import {cleanup, fireEvent, render, screen} from '@testing-library/react';
+import {MemoryRouter} from 'react-router-dom';
+import QuestionCard from './QuestionCard.jsx';
+
+vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+
+afterEach(cleanup);
+
+const item = (overrides) => ({appid: 10, name: 'Hades', imageUrl: null, question: 'RATE', status: 'FINISHED',
+    playtimeMinutes: 1500, normallyMinutes: null, lastActivity: null, ...overrides});
+
+const renderCard = (props, onAnswer = vi.fn()) => {
+    render(<MemoryRouter><QuestionCard item={item(props)} busy={false} onAnswer={onAnswer}/></MemoryRouter>);
+    return onAnswer;
+};
+
+describe('QuestionCard', () => {
+    it('sendsTheStarsAsARating', () => {
+        const onAnswer = renderCard();
+
+        fireEvent.click(screen.getByRole('button', {name: 'BACKLOG.RATING_STARS:4'}));
+
+        expect(onAnswer).toHaveBeenCalledWith({yes: true, rating: 4});
+    });
+
+    it('sendsNoForSkip', () => {
+        const onAnswer = renderCard();
+
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.SKIP'}));
+
+        expect(onAnswer).toHaveBeenCalledWith({yes: false});
+    });
+
+    it('answersYesAndNoWithoutARating', () => {
+        const onAnswer = renderCard({question: 'START', status: 'BACKLOG'});
+
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.YES'}));
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.NO'}));
+
+        expect(onAnswer.mock.calls).toEqual([[{yes: true}], [{yes: false}]]);
+        expect(screen.queryByRole('button', {name: 'QUESTIONS.SKIP'})).toBeNull();
+    });
+
+    it('linksTheNameToTheGamePage', () => {
+        renderCard();
+
+        expect(screen.getByRole('link', {name: 'Hades'}).getAttribute('href')).toBe('/library/10');
+    });
+});

src/components/RatingStars.jsx

@@ -0,0 +1,32 @@
+import {useTranslation} from 'react-i18next';
+import {Star} from 'lucide-react';
+
+import {cn} from '@/lib/utils';
+
+/**
+ * Five star buttons. Clicking the chosen star again sends 0, so the parent decides what that means.
+ *
+ * @param value 0 for no rating
+ * @param labelledBy id of the element that names the group
+ */
+export default function RatingStars({value, onChange, labelledBy, disabled}) {
+    const {t} = useTranslation();
+    return (
+        <div role="group" aria-labelledby={labelledBy} className="flex h-9 items-center gap-1">
+            {[1, 2, 3, 4, 5].map((n) => (
+                <button
+                    key={n}
+                    type="button"
+                    disabled={disabled}
+                    aria-label={t('BACKLOG.RATING_STARS', {count: n})}
+                    aria-pressed={value === n}
+                    onClick={() => onChange(value === n ? 0 : n)}
+                    className="rounded-sm p-0.5 outline-none focus-visible:ring-[3px] focus-visible:ring-ring/50"
+                >
+                    <Star className={cn('size-6 transition-colors',
+                        n <= value ? 'fill-amber-400 text-amber-400' : 'text-muted-foreground/40 hover:text-amber-400')}/>
+                </button>
+            ))}
+        </div>
+    );
+}

src/pages/QuestionsPage.jsx

@@ -0,0 +1,73 @@
+import {useCallback, useEffect, useState} from 'react';
+import {useTranslation} from 'react-i18next';
+import {Loader2} from 'lucide-react';
+import {toast} from 'sonner';
+
+import PageContainer from '../components/PageContainer.jsx';
+import QuestionCard from '../components/QuestionCard.jsx';
+import {answerQuestion, fetchQuestions} from '../utils/questions.js';
+
+/**
+ * The open questions about the user's games: one card per game, answered one click at a time. Core decides which
+ * question is open; a yes changes the game like the game page does.
+ */
+export default function QuestionsPage() {
+    const {t} = useTranslation();
+    const [items, setItems] = useState([]);
+    const [status, setStatus] = useState('loading');
+    const [busyAppid, setBusyAppid] = useState(null);
+
+    const load = useCallback(async () => {
+        const {ok, status: code, data} = await fetchQuestions();
+        if (code === 401) return;
+        if (!ok) {
+            setStatus('error');
+            return;
+        }
+        setItems(data.results);
+        setStatus('ready');
+    }, []);
+
+    useEffect(() => {
+        load();
+    }, [load]);
+
+    const answer = async (item, choice) => {
+        setBusyAppid(item.appid);
+        try {
+            const {ok, status: code, data} = await answerQuestion(item.appid, {question: item.question, ...choice});
+            if (code === 401) return;
+            if (ok) {
+                // The next question of the same game (Rate it? after Finished?) takes the place of the card.
+                setItems((current) => current.flatMap((entry) => (entry.appid === item.appid ? [data.next].filter(Boolean) : [entry])));
+                toast.success(t('BACKLOG.SAVED'));
+            } else if (code === 404 || code === 409) {
+                toast(t('QUESTIONS.GONE'));
+                await load();
+            } else if (code === 0) {
+                toast.error(t('INFO.ERROR.NETWORK_FAILURE'));
+            } else {
+                toast.error(t('BACKLOG.SAVE_FAILED'));
+            }
+        } finally {
+            setBusyAppid(null);
+        }
+    };
+
+    return (
+        <PageContainer className="space-y-4 px-4 py-6 md:px-8">
+            <h1 className="text-2xl font-bold tracking-tight">
+                {status === 'ready' && items.length > 0 ? t('QUESTIONS.TITLE_COUNT', {count: items.length}) : t('QUESTIONS.TITLE')}
+            </h1>
+            {status === 'loading' && <Loader2 className="size-5 animate-spin text-muted-foreground"/>}
+            {status === 'error' && <p className="text-sm text-destructive">{t('INFO.ERROR.NETWORK_FAILURE')}</p>}
+            {status === 'ready' && items.length === 0 && (
+                <p className="text-sm text-muted-foreground">{t('QUESTIONS.EMPTY')}</p>
+            )}
+            {status === 'ready' && items.map((item) => (
+                <QuestionCard key={item.appid} item={item} busy={busyAppid !== null}
+                              onAnswer={(choice) => answer(item, choice)}/>
+            ))}
+        </PageContainer>
+    );
+}

src/pages/QuestionsPage.test.jsx

@@ -0,0 +1,133 @@
+// @vitest-environment jsdom
+import {afterEach, beforeEach, describe, expect, it, vi} from 'vitest';
+import {cleanup, fireEvent, render, screen, waitFor} from '@testing-library/react';
+import {MemoryRouter} from 'react-router-dom';
+import {toast} from 'sonner';
+import QuestionsPage from './QuestionsPage.jsx';
+import {PreferencesProvider} from '../context/PreferencesContext.jsx';
+import {fetchRoutes, json} from '../test/fetchRoutes.js';
+
+vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+vi.mock('sonner', () => ({toast: Object.assign(vi.fn(), {success: vi.fn(), error: vi.fn()})}));
+
+const card = (appid, question, name = `Game ${appid}`) => ({appid, name, imageUrl: null, question, status: 'PLAYING',
+    playtimeMinutes: 1500, normallyMinutes: null, lastActivity: null});
+
+const renderPage = (routes) => {
+    const mock = fetchRoutes(routes);
+    render(<MemoryRouter><PreferencesProvider><QuestionsPage/></PreferencesProvider></MemoryRouter>);
+    return mock;
+};
+
+const bodyOf = (mock) => JSON.parse(mock.mock.calls.find(([, init]) => init?.method === 'POST')[1].body);
+
+beforeEach(() => {
+    localStorage.setItem('tbp_session', '1');
+});
+
+afterEach(() => {
+    cleanup();
+    localStorage.clear();
+    vi.clearAllMocks();
+});
+
+describe('QuestionsPage', () => {
+    it('showsOneCardPerGameWithTheCountInTheTitle', async () => {
+        renderPage({'GET /api/library/questions': json(200, {results: [card(1, 'START'), card(2, 'FINISHED')]})});
+
+        expect(await screen.findByText('Game 1')).toBeTruthy();
+        expect(screen.getByText('Game 2')).toBeTruthy();
+        expect(screen.getByText('QUESTIONS.START.ASK')).toBeTruthy();
+        expect(screen.getByText('QUESTIONS.TITLE_COUNT:2')).toBeTruthy();
+    });
+
+    it('removesTheCardAfterAYes', async () => {
+        const mock = renderPage({
+            'GET /api/library/questions': json(200, {results: [card(1, 'START'), card(2, 'START')]}),
+            'POST /api/library/questions/1': json(200, {next: null}),
+        });
+        await screen.findByText('Game 1');
+
+        fireEvent.click(screen.getAllByRole('button', {name: 'QUESTIONS.YES'})[0]);
+
+        await waitFor(() => expect(screen.queryByText('Game 1')).toBeNull());
+        expect(screen.getByText('Game 2')).toBeTruthy();
+        expect(bodyOf(mock)).toEqual({question: 'START', yes: true});
+        expect(toast.success).toHaveBeenCalledWith('BACKLOG.SAVED');
+    });
+
+    it('removesTheCardAfterANo', async () => {
+        const mock = renderPage({
+            'GET /api/library/questions': json(200, {results: [card(1, 'DROPPED')]}),
+            'POST /api/library/questions/1': json(200, {next: null}),
+        });
+        await screen.findByText('Game 1');
+
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.NO'}));
+
+        expect(await screen.findByText('QUESTIONS.EMPTY')).toBeTruthy();
+        expect(bodyOf(mock)).toEqual({question: 'DROPPED', yes: false});
+    });
+
+    it('replacesTheCardWithTheRateQuestionAfterFinished', async () => {
+        renderPage({
+            'GET /api/library/questions': json(200, {results: [card(1, 'FINISHED')]}),
+            'POST /api/library/questions/1': json(200, {next: card(1, 'RATE')}),
+        });
+        await screen.findByText('QUESTIONS.FINISHED.ASK');
+
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.YES'}));
+
+        expect(await screen.findByText('QUESTIONS.RATE.ASK')).toBeTruthy();
+        expect(screen.queryByText('QUESTIONS.FINISHED.ASK')).toBeNull();
+    });
+
+    it('sendsTheRatingOfTheStars', async () => {
+        const mock = renderPage({
+            'GET /api/library/questions': json(200, {results: [card(1, 'RATE')]}),
+            'POST /api/library/questions/1': json(200, {next: null}),
+        });
+        await screen.findByText('QUESTIONS.RATE.ASK');
+
+        fireEvent.click(screen.getByRole('button', {name: 'BACKLOG.RATING_STARS:5'}));
+
+        await screen.findByText('QUESTIONS.EMPTY');
+        expect(bodyOf(mock)).toEqual({question: 'RATE', yes: true, rating: 5});
+    });
+
+    it('loadsTheListAgainWhenTheQuestionIsGone', async () => {
+        let results = [card(1, 'START')];
+        renderPage({
+            'GET /api/library/questions': () => json(200, {results}),
+            'POST /api/library/questions/1': () => {
+                results = [];
+                return json(409, {code: 'QUESTION_GONE'});
+            },
+        });
+        await screen.findByText('Game 1');
+
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.YES'}));
+
+        expect(await screen.findByText('QUESTIONS.EMPTY')).toBeTruthy();
+        expect(toast).toHaveBeenCalledWith('QUESTIONS.GONE');
+    });
+
+    it('keepsTheCardAndSaysSoWhenSavingFails', async () => {
+        renderPage({
+            'GET /api/library/questions': json(200, {results: [card(1, 'START')]}),
+            'POST /api/library/questions/1': json(500, {}),
+        });
+        await screen.findByText('Game 1');
+
+        fireEvent.click(screen.getByRole('button', {name: 'QUESTIONS.YES'}));
+
+        await waitFor(() => expect(toast.error).toHaveBeenCalledWith('BACKLOG.SAVE_FAILED'));
+        expect(screen.getByText('Game 1')).toBeTruthy();
+    });
+
+    it('showsTheEmptyState', async () => {
+        renderPage({'GET /api/library/questions': json(200, {results: []})});
+
+        expect(await screen.findByText('QUESTIONS.EMPTY')).toBeTruthy();
+    });
+});

src/utils/questions.js

@@ -0,0 +1,24 @@
+import {request} from './api.js';
+
+const QUESTIONS = () => `${import.meta.env.VITE_CORE_API_URL}/api/library/questions`;
+
+/**
+ * GET /api/library/questions: `{results: [{appid, name, imageUrl, question, status, playtimeMinutes, normallyMinutes,
+ * lastActivity}]}`, one open question per game, most important first. `question` is `START`, `FINISHED`, `DROPPED` or
+ * `RATE`; `normallyMinutes` is IGDB's time to beat or null; `lastActivity` (an ISO time) only comes with `DROPPED`.
+ */
+export const fetchQuestions = () => request(QUESTIONS());
+
+/** GET /api/library/questions/count: `{count}`, the number of cards the list has. */
+export const fetchQuestionCount = () => request(`${QUESTIONS()}/count`);
+
+/**
+ * POST /api/library/questions/{appid}: `{question, yes, rating?}`. A yes to `RATE` needs `rating` (1 to 5). 200 is
+ * `{next}`: the next question of the same game (e.g. `RATE` after `FINISHED`) or null. 404 `GAME_NOT_FOUND`, 409
+ * `QUESTION_GONE` (the question is not open any more).
+ */
+export const answerQuestion = (appid, {question, yes, rating}) => request(`${QUESTIONS()}/${appid}`, {
+    method: 'POST',
+    headers: {'Content-Type': 'application/json'},
+    body: JSON.stringify({question, yes, rating}),
+});