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client: fix reset-error handling, undersized qty buttons, chart resize,

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dedupe j()/errText(), stale-fetch guard, empty bar-picker state

Six small, mostly-unrelated items from the #47 review round (#57):

1. 'Statistik zurücksetzen' now checks res.ok and shows the server's
   error instead of silently re-rendering the un-reset data on a 401/500
   with no indication anything went wrong.
2. DayChart now tracks its container width via ResizeObserver and calls
   uPlot's setSize() on change — previously read once at plot-creation
   time, so a resize/orientation-change (more visible on the phone/
   tablet path into /stats) left the chart the wrong width.
3. .qty-btn (cart +/- buttons) grown from 28x28px to 44x44px, the
   conventional minimum touch target — was the one conspicuously small
   interactive control in the money path, at a fast-moving bar counter.
4. Tablet's bar-config fetch (App.tsx) now guards against an
   out-of-order resolution if barId changes again while a previous
   api.config() call is still in flight. Currently unreachable (nothing
   triggers a second barId change mid-fetch today) but closes the gap
   before the next 'add a cancel button to the loading screen' change
   could make it live.
5. j()/errText() were duplicated byte-for-byte between Admin.tsx and
   Stats.tsx (Admin.tsx's own comment noted this exact duplication had
   already caused drift once before) — centralized in api.ts, both files
   now import instead of redeclaring.
6. Tablet's bar picker now shows an explicit empty-state message when
   zero bars exist (fresh install, or every bar deleted), previously
   indistinguishable from 'still loading'.

Closes #57. Verified: tsc --noEmit and vite build both clean.
This commit is contained in:
iris 2026-07-31 11:17:08 +02:00 • committed by mara
commit 7a58a4a1bb
7 changed files with 64 additions and 44 deletions
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19
client/src/stats/Stats.tsx
View file

@ -1,21 +1,7 @@
import { useEffect, useMemo, useState } from 'preact/hooks';
import { formatCents } from '../api';
import { errText, formatCents, j } from '../api';
import { DayChart } from './DayChart';
async function j<T = any>(res: Response): Promise<T> {
if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);
return res.json();
}
async function errText(res: Response): Promise<string> {
try {
const body = await res.json();
return body.detail ?? body.title ?? body.error ?? res.statusText;
} catch {
return res.statusText;
}
}
interface Totals { bar_id: number; bar_name: string; tx_count: number; paid_cents: number; crew_count: number; pfand_returns: number }
interface PerDrink { drink_id: number; drink_name: string; sold_qty: number }
interface ByDay { day: string; tx_count: number; paid_cents: number; crew_count: number; pfand_returns: number }
@ -128,7 +114,8 @@ function Login({ onAuthed }: { onAuthed: () => void }) {
function Dashboard({ data, isAdmin, onReset }: { data: StatsData; isAdmin: boolean; onReset: () => void }) {
async function reset() {
if (!confirm('Wirklich die gesamte Statistik (alle Transaktionen) unwiderruflich löschen?')) return;
await fetch('/admin/api/stats/reset', { method: 'POST' });
const res = await fetch('/admin/api/stats/reset', { method: 'POST' });
if (!res.ok) { alert(`Fehler: ${await errText(res)}`); return; }
onReset();
}