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scrabble-game/ui/src/screens/Lobby.svelte
T
Ilia Denisov c305363ccd
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feat(lobby): enter the game immediately and wait for the opponent inside it
Quick auto-match no longer waits on a separate screen: Enqueue opens a real game seating the caller with an empty opponent seat (new game status 'open') and the player enters it at once. A second human searching the same variant+rule joins that open game; otherwise a background reaper seats a robot after a 90s + random 0-90s wait, pushing a new in-app opponent_joined event that fills the opponent card and re-enables resign and chat in place.

Matchmaking state is now the open games in the database (the in-memory pool, lobby.poll and lobby.cancel are gone), serialised by a per-bucket advisory lock. While a game is open the starter may move on their turn, but resign, chat and nudge are refused; the lobby and opponent card show "searching for opponent".

Schema edited in the baseline (no prod data): 'open' status, nullable game_players.account_id for the empty seat, and a games.open_deadline_at stamp; jet code regenerated.
2026-06-12 16:00:22 +02:00

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<script lang="ts">
import { onMount } from 'svelte';
import Screen from '../components/Screen.svelte';
import TabBar from '../components/TabBar.svelte';
import { app, handleError, showToast } from '../lib/app.svelte';
import { connection } from '../lib/connection.svelte';
import { gateway } from '../lib/gateway';
import { navigate } from '../lib/router.svelte';
import { t, type MessageKey } from '../lib/i18n/index.svelte';
import { resultBadge } from '../lib/result';
import { getLobby, setLobby } from '../lib/lobbycache';
import { groupGames } from '../lib/lobbysort';
import type { AccountRef, GameView, Invitation } from '../lib/model';
let games = $state<GameView[]>([]);
let invitations = $state<Invitation[]>([]);
let incoming = $state<AccountRef[]>([]);
const guest = $derived(app.profile?.isGuest ?? true);
async function load() {
try {
games = (await gateway.gamesList()).games;
if (!guest) {
[invitations, incoming] = await Promise.all([gateway.invitationsList(), gateway.friendsIncoming()]);
// The ⚙️ badge counts only what lives behind it (incoming friend requests);
// invitations surface in their own lobby section above.
app.notifications = incoming.length;
}
setLobby({ games, invitations, incoming });
} catch (e) {
handleError(e);
}
}
onMount(() => {
// Render instantly from the cached lists (so the screen does not "draw in" during
// the back-slide), then refresh in the background.
const cached = getLobby();
if (cached) {
games = cached.games;
invitations = cached.invitations;
incoming = cached.incoming;
}
void load();
});
$effect(() => {
if (app.lastEvent) void load();
});
const myId = $derived(app.session?.userId ?? '');
const groups = $derived(groupGames(games, myId));
function opponents(g: GameView): string {
// An auto-match game still waiting for an opponent shows the "searching" placeholder.
if (g.status === 'open') return t('game.searchingForOpponent');
return g.seats
.filter((s) => s.accountId !== myId)
.map((s) => s.displayName)
.join(', ');
}
function scoreline(g: GameView): string {
const me = g.seats.find((s) => s.accountId === myId);
const opp = g.seats.filter((s) => s.accountId !== myId).map((s) => s.score);
return `${me?.score ?? 0} : ${opp.join(', ')}`;
}
// Hiding a finished game. The delete action sits behind each finished row and is
// revealed by swiping the row left (touch) or tapping its kebab (any pointer); the action is
// per-account and irreversible. Only one row is revealed at a time.
let revealedId = $state<string | null>(null);
let drag: { id: string; x0: number; y0: number } | null = null;
// A horizontal swipe must not also count as a tap that opens the game; armed on swipe,
// consumed by the next tap, and reset on the next pointerdown so a later tap is never eaten.
let swiped = false;
function onRowDown(e: PointerEvent, id: string): void {
swiped = false;
if (e.pointerType === 'mouse') return; // desktop reveals via the kebab, not a swipe
drag = { id, x0: e.clientX, y0: e.clientY };
}
function onRowUp(e: PointerEvent, finished: boolean): void {
if (!drag) return;
const dx = e.clientX - drag.x0;
const dy = e.clientY - drag.y0;
// Only a finished row reveals on a horizontal swipe; that swipe then suppresses the tap so it
// does not also open the game. Active rows ignore swipes and stay plain tap-to-open.
if (finished && Math.abs(dx) > 40 && Math.abs(dx) > Math.abs(dy) * 1.4) {
swiped = true;
revealedId = dx < 0 ? drag.id : null;
}
drag = null;
}
function openGame(g: GameView): void {
if (swiped) {
swiped = false;
return;
}
if (revealedId === g.id) {
revealedId = null;
return;
}
navigate(`/game/${g.id}`);
}
function toggleReveal(id: string): void {
revealedId = revealedId === id ? null : id;
}
async function hide(id: string): Promise<void> {
revealedId = null;
const prev = games;
games = games.filter((g) => g.id !== id); // optimistic; the backend already filters it out
setLobby({ games, invitations, incoming });
try {
await gateway.hideGame(id);
} catch (e) {
games = prev;
setLobby({ games, invitations, incoming });
handleError(e);
}
}
async function acceptInvite(inv: Invitation) {
try {
const r = await gateway.invitationAccept(inv.id);
if (r.gameId) navigate(`/game/${r.gameId}`);
else await load();
} catch (e) {
handleError(e);
}
}
const declineInvite = (inv: Invitation) => act(() => gateway.invitationDecline(inv.id));
const cancelInvite = (inv: Invitation) => act(() => gateway.invitationCancel(inv.id));
async function act(fn: () => Promise<unknown>) {
try {
await fn();
await load();
} catch (e) {
handleError(e);
}
}
const variantKey: Record<string, MessageKey> = {
scrabble_en: 'new.english',
scrabble_ru: 'new.russian',
erudit_ru: 'new.erudit',
};
</script>
<Screen title={app.profile?.displayName ?? t('app.title')}>
<div class="lobby">
{#if invitations.length}
<section>
<h2>{t('lobby.invitations')}</h2>
{#each invitations as inv (inv.id)}
<div class="invite">
<span class="emoji">💌</span>
<span class="info">
{#if inv.inviter.accountId === myId}
<span class="who">{t('invitations.with', { names: inv.invitees.map((i) => i.displayName).join(', ') })}</span>
<span class="sub">{t('invitations.waiting')}</span>
{:else}
<span class="who">{t('invitations.from', { name: inv.inviter.displayName })}</span>
<span class="sub">{t(variantKey[inv.variant] ?? 'new.english')}</span>
{/if}
{#if !inv.multipleWordsPerTurn}<span class="sub">{t('game.oneWordRule')}</span>{/if}
</span>
<span class="acts">
{#if inv.inviter.accountId === myId}
<button class="ghost" onclick={() => cancelInvite(inv)}>{t('invitations.cancel')}</button>
{:else}
<button class="btn" onclick={() => acceptInvite(inv)}>{t('invitations.accept')}</button>
<button class="ghost" onclick={() => declineInvite(inv)}>{t('invitations.decline')}</button>
{/if}
</span>
</div>
{/each}
</section>
{/if}
{#each [{ h: 'lobby.yourTurn', list: groups.yourTurn, finished: false }, { h: 'lobby.theirTurn', list: groups.theirTurn, finished: false }, { h: 'lobby.finishedGames', list: groups.finished, finished: true }] as group (group.h)}
{#if group.list.length}
<section>
<h2>{t(group.h as 'lobby.yourTurn')}</h2>
<div class="list">
{#each group.list as g (g.id)}
<div class="rowwrap" class:revealed={group.finished && revealedId === g.id}>
{#if group.finished}
<button class="del" onclick={() => hide(g.id)} disabled={!connection.online} aria-label={t('lobby.hideGame')}>❌</button>
{/if}
<div class="row">
<button
class="open"
onpointerdown={(e) => onRowDown(e, g.id)}
onpointerup={(e) => onRowUp(e, group.finished)}
onclick={() => openGame(g)}
>
<span class="info">
<span class="who">{opponents(g) || '—'}</span>
<span class="sub">{scoreline(g)}</span>
</span>
<span class="emoji">{resultBadge(g, myId).emoji}</span>
</button>
{#if group.finished}
<button class="kebab" onclick={() => toggleReveal(g.id)} aria-label={t('lobby.hideGame')}></button>
{:else}
<!-- A visual duplicate of the row's tap target: opens the game on tap, but kept out
of the tab order / a11y tree since the .open button already does the same. -->
<button class="chev" onclick={() => openGame(g)} tabindex={-1} aria-hidden="true"></button>
{/if}
</div>
</div>
{/each}
</div>
</section>
{/if}
{/each}
{#if !games.length && !invitations.length}
<p class="empty">{t('lobby.noActive')}</p>
{/if}
</div>
{#snippet tabbar()}
<TabBar>
<button class="tab" onclick={() => navigate('/new')}>
<span class="sq">🎲</span><span class="lbl">{t('lobby.new')}</span>
</button>
<button class="tab" onclick={() => navigate('/stats')}>
<span class="sq">📊</span><span class="lbl">{t('lobby.stats')}</span>
</button>
<button class="tab" onclick={() => showToast(t('lobby.soon'))}>
<span class="sq">🏆</span><span class="lbl">{t('lobby.tournaments')}</span>
</button>
<button class="tab" onclick={() => navigate('/settings')}>
<span class="sq">⚙️{#if app.notifications > 0}<span class="badge">{app.notifications}</span>{/if}</span>
<span class="lbl">{t('lobby.settings')}</span>
</button>
</TabBar>
{/snippet}
</Screen>
<style>
.lobby {
padding: var(--pad);
display: flex;
flex-direction: column;
gap: 18px;
}
h2 {
font-size: 0.9rem;
text-transform: uppercase;
letter-spacing: 0.04em;
color: var(--text-muted);
margin: 0 0 8px;
}
.empty {
color: var(--text-muted);
font-size: 0.9rem;
margin: 0;
}
.invite {
display: flex;
align-items: center;
justify-content: space-between;
gap: 12px;
width: 100%;
text-align: left;
padding: 12px 14px;
margin-bottom: 8px;
border: 1px solid var(--border);
background: var(--surface);
color: var(--text);
border-radius: var(--radius);
user-select: none;
}
/* Game rows are a compact, flat list: no per-card frame, a hairline divider between
consecutive rows. */
.list {
display: flex;
flex-direction: column;
}
/* Each finished row can slide left to reveal a delete action sitting behind it; the row's
own opaque background hides that action until revealed. */
.rowwrap {
position: relative;
overflow: hidden;
}
.rowwrap + .rowwrap {
border-top: 1px solid var(--border);
}
.del {
position: absolute;
inset: 0 0 0 auto;
width: 64px;
display: flex;
align-items: center;
justify-content: center;
border: none;
background: var(--danger);
color: #fff;
font-size: 1.1rem;
}
.row {
position: relative;
display: flex;
align-items: center;
gap: 2px;
background: var(--bg);
transform: translateX(0);
transition: transform 0.18s ease;
}
.rowwrap.revealed .row {
transform: translateX(-64px);
}
.open {
flex: 1 1 auto;
display: flex;
align-items: center;
justify-content: space-between;
gap: 12px;
min-width: 0;
text-align: left;
padding: 10px 6px;
border: none;
background: none;
color: var(--text);
user-select: none;
touch-action: pan-y; /* keep vertical list scroll; we only read horizontal swipes */
}
/* A tap/click on a game row leaves no highlight: drop the WebKit tap-flash on
both tappable areas (the open body and the chevron / kebab) and the held
:active background, which added nothing and only spoiled the look. */
.open,
.chev,
.kebab {
-webkit-tap-highlight-color: transparent;
}
.kebab {
flex: 0 0 auto;
width: 30px;
padding: 10px 0;
border: none;
background: none;
color: var(--text-muted);
font-size: 1.4rem;
line-height: 1;
}
.chev {
flex: 0 0 auto;
width: 30px;
padding: 10px 0;
border: none;
background: none;
text-align: center;
color: var(--text-muted);
font-size: 1.4rem;
line-height: 1;
}
.info {
display: flex;
flex-direction: column;
gap: 2px;
min-width: 0;
}
.who {
font-weight: 600;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.sub {
font-size: 0.85rem;
color: var(--text-muted);
}
.emoji {
font-size: 1.8rem;
line-height: 1;
flex: 0 0 auto;
}
.acts {
display: flex;
gap: 8px;
flex: 0 0 auto;
}
.btn {
padding: 8px 12px;
border: 1px solid var(--accent);
background: var(--accent);
color: var(--accent-text);
border-radius: var(--radius-sm);
}
.ghost {
padding: 8px 12px;
border: 1px solid var(--border);
background: var(--surface);
color: var(--text);
border-radius: var(--radius-sm);
}
</style>