feat: úhrada za všechny jednou osobou (issue #29, SINGLE_PAYMENT)
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Přidává možnost, aby jeden strávník zaplatil celý účet v restauraci a ostatní
obdrželi QR kód pro refundaci.

Prerekvizita — podpora více QR kódů na (příjemce, den):
- PendingQr.id (UUID) nahrazuje deduplikaci podle data; každý QR má vlastní klíč
- QR obrázky uloženy do Redis/storage (base64) místo tmpdir — přežijí redeploy
- GET /api/qr vyžaduje ?id= parametr; dismissQr přijímá {id} místo {date}

Feature:
- Ikona 'Zaplatit za všechny' v choices-table pro každou LunchChoice (kromě
  PIZZA/NEOBEDVAM/ROZHODUJI); viditelná jen při ≥2 strávnících a vyplněném účtu
- PayForAllModal: tabulka strávníků s prefillovanými cenami z menu, příplatky
  per-diner, celkové dýško rozpočtené rovnoměrně, generování QR přes POST /api/qr/generate
- parsePriceCzk() helper pro parsing 'N Kč' → number

Co se nemění: POST /api/qr/generate API kontrakt, PizzaOrder.hasQr boolean

Co se mění v OpenAPI: PendingQr.id (required), getPizzaQr ?id param, dismissQr body

Co-Authored-By: opmrdkazkrtkaus <opmrdkazkrtkaus@melancholik.eu>
This commit was merged in pull request #53.
This commit is contained in:
2026-04-28 22:35:15 +02:00
parent e5999852b7
commit 1e1e23df80
11 changed files with 430 additions and 66 deletions
@@ -0,0 +1,308 @@
import { useState, useEffect, useCallback } from "react";
import { Modal, Button, Form, Table, Alert } from "react-bootstrap";
import { generateQr, LunchChoice, LocationLunchChoicesMap, RestaurantDayMenu, QrRecipient } from "../../../../types";
import { parsePriceCzk } from "../../utils/parsePrice";
type DinerEntry = {
login: string;
selectedFoods: number[];
baseAmount: number;
baseAmountParseFailed: boolean;
surchargeText: string;
surchargeAmount: string;
included: boolean;
};
type Props = {
isOpen: boolean;
onClose: () => void;
locationKey: LunchChoice;
locationName: string;
locationChoices: LocationLunchChoicesMap;
menu: RestaurantDayMenu | undefined;
payerLogin: string;
bankAccount: string;
bankAccountHolder: string;
};
function sanitizeAmount(value: string): string {
return value.replace(/[^0-9.,]/g, '').replace(',', '.');
}
function parseAmount(s: string): number | null {
if (!s || s.trim().length === 0) return null;
const n = parseFloat(s);
if (isNaN(n) || n < 0) return null;
const parts = s.split('.');
if (parts.length === 2 && parts[1].length > 2) return null;
return Math.round(n * 100) / 100;
}
export default function PayForAllModal({ isOpen, onClose, locationName, locationChoices, menu, payerLogin, bankAccount, bankAccountHolder }: Readonly<Props>) {
const [diners, setDiners] = useState<DinerEntry[]>([]);
const [tipTotal, setTipTotal] = useState('');
const [error, setError] = useState<string | null>(null);
const [loading, setLoading] = useState(false);
const [success, setSuccess] = useState(false);
const hasMenu = !!menu;
useEffect(() => {
if (!isOpen) return;
const entries: DinerEntry[] = Object.entries(locationChoices).map(([login, choice]) => {
const selectedFoods = choice.selectedFoods ?? [];
let baseAmount = 0;
let baseAmountParseFailed = false;
if (menu) {
for (const idx of selectedFoods) {
const price = parsePriceCzk(menu.food?.[idx]?.price);
if (price === null) {
baseAmountParseFailed = true;
} else {
baseAmount += price;
}
}
}
return {
login,
selectedFoods,
baseAmount,
baseAmountParseFailed,
surchargeText: '',
surchargeAmount: '',
included: login !== payerLogin,
};
});
setDiners(entries);
setTipTotal('');
setError(null);
setSuccess(false);
}, [isOpen, locationChoices, menu, payerLogin]);
const includedDiners = diners.filter(d => d.included && d.login !== payerLogin);
const tipPerPerson = (() => {
if (includedDiners.length === 0) return 0;
const tip = parseAmount(tipTotal);
if (tip === null || tip === 0) return 0;
return Math.round((tip / includedDiners.length) * 100) / 100;
})();
const getTotal = (d: DinerEntry): number => {
const surcharge = parseAmount(d.surchargeAmount) ?? 0;
const tip = d.included && d.login !== payerLogin ? tipPerPerson : 0;
return Math.round((d.baseAmount + surcharge + tip) * 100) / 100;
};
const handleInclude = useCallback((login: string, checked: boolean) => {
setDiners(prev => prev.map(d => d.login === login ? { ...d, included: checked } : d));
}, []);
const handleSurchargeText = useCallback((login: string, value: string) => {
setDiners(prev => prev.map(d => d.login === login ? { ...d, surchargeText: value } : d));
}, []);
const handleSurchargeAmount = useCallback((login: string, value: string) => {
setDiners(prev => prev.map(d => d.login === login ? { ...d, surchargeAmount: sanitizeAmount(value) } : d));
}, []);
const handleGenerate = async () => {
setError(null);
const recipients: QrRecipient[] = [];
for (const d of diners) {
if (!d.included || d.login === payerLogin) continue;
const total = getTotal(d);
if (total <= 0) {
setError(`Celková částka pro ${d.login} musí být kladná`);
return;
}
const amountStr = total.toString();
if (amountStr.includes('.') && amountStr.split('.')[1].length > 2) {
setError(`Částka pro ${d.login} má více než 2 desetinná místa`);
return;
}
const foods = d.selectedFoods.map(i => menu?.food?.[i]?.name).filter(Boolean).join(', ');
const purposeBase = `Oběd ${locationName}${foods ? `${foods}` : ''}`;
recipients.push({
login: d.login,
purpose: purposeBase.substring(0, 60),
amount: total,
});
}
if (recipients.length === 0) {
setError("Nebyl vybrán žádný příjemce");
return;
}
setLoading(true);
try {
const response = await generateQr({
body: { recipients, bankAccount, bankAccountHolder },
});
if (response.error) {
setError((response.error as any).error || 'Nastala chyba při generování QR kódů');
} else {
setSuccess(true);
setTimeout(() => onClose(), 2000);
}
} catch (e: any) {
setError(e.message || 'Nastala chyba při generování QR kódů');
} finally {
setLoading(false);
}
};
const anyParseFailed = diners.some(d => d.baseAmountParseFailed && d.included);
return (
<Modal show={isOpen} onHide={onClose} size="lg">
<Modal.Header closeButton>
<Modal.Title><h2>Zaplatit za všechny {locationName}</h2></Modal.Title>
</Modal.Header>
<Modal.Body>
{success ? (
<Alert variant="success">
QR kódy byly úspěšně vygenerovány! Uživatelé je uvidí v sekci Nevyřízené platby".
</Alert>
) : (
<>
<p>Zaplatili jste za skupinu v restauraci. Nastavte příplatky a dýško, poté vygenerujte QR kódy pro ostatní.</p>
{!hasMenu && (
<Alert variant="info">
Pro tuto skupinu nejsou k dispozici ceny jídel — vyplňte příplatky ručně.
</Alert>
)}
{anyParseFailed && (
<Alert variant="warning">
U některých jídel se nepodařilo načíst cenu — doplňte ji ručně v sloupci Příplatek.
</Alert>
)}
{error && (
<Alert variant="danger" onClose={() => setError(null)} dismissible>
{error}
</Alert>
)}
<Table striped bordered hover responsive size="sm">
<thead>
<tr>
<th style={{ width: 40 }}></th>
<th>Strávník</th>
<th>Jídla</th>
<th style={{ width: 220 }}>Příplatek</th>
<th style={{ width: 90 }}>Dýško</th>
<th style={{ width: 90 }}>Celkem</th>
</tr>
</thead>
<tbody>
{diners.map(d => {
const isPayer = d.login === payerLogin;
const foodNames = d.selectedFoods.map(i => menu?.food?.[i]?.name).filter(Boolean).join(', ');
const total = getTotal(d);
return (
<tr key={d.login} className={!d.included && !isPayer ? 'text-muted' : ''}>
<td className="text-center">
{isPayer ? (
<small className="text-muted">plátce</small>
) : (
<Form.Check
type="checkbox"
checked={d.included}
onChange={e => handleInclude(d.login, e.target.checked)}
/>
)}
</td>
<td><strong>{d.login}</strong></td>
<td>
<small>
{foodNames || <span className="text-muted">—</span>}
{hasMenu && d.baseAmount > 0 && <span className="text-muted"> ({d.baseAmount} Kč)</span>}
{d.baseAmountParseFailed && <span className="text-warning"> ⚠</span>}
</small>
</td>
<td>
{!isPayer && (
<div className="d-flex gap-1">
<Form.Control
type="text"
placeholder="popis"
value={d.surchargeText}
onChange={e => handleSurchargeText(d.login, e.target.value)}
disabled={!d.included}
size="sm"
onKeyDown={e => e.stopPropagation()}
/>
<Form.Control
type="text"
placeholder=""
value={d.surchargeAmount}
onChange={e => handleSurchargeAmount(d.login, e.target.value)}
disabled={!d.included}
size="sm"
style={{ width: 70 }}
onKeyDown={e => e.stopPropagation()}
/>
</div>
)}
</td>
<td className="text-end">
{!isPayer && d.included ? `${tipPerPerson} Kč` : '—'}
</td>
<td className="text-end fw-bold">
{!isPayer ? `${total} Kč` : '—'}
</td>
</tr>
);
})}
</tbody>
</Table>
<div className="d-flex align-items-center gap-2 mt-2">
<label className="mb-0 text-nowrap">Dýško celkem (Kč):</label>
<Form.Control
type="text"
placeholder="0"
value={tipTotal}
onChange={e => setTipTotal(sanitizeAmount(e.target.value))}
size="sm"
style={{ width: 100 }}
onKeyDown={e => e.stopPropagation()}
/>
<small className="text-muted">
{includedDiners.length > 0 && tipPerPerson > 0
? `(${tipPerPerson} Kč / osoba)`
: ''}
</small>
</div>
</>
)}
</Modal.Body>
<Modal.Footer>
{!success && (
<>
<span className="me-auto text-muted">
Příjemci: {includedDiners.length}
</span>
<Button variant="secondary" onClick={onClose} disabled={loading}>
Storno
</Button>
<Button
variant="primary"
onClick={handleGenerate}
disabled={loading || includedDiners.length === 0}
>
{loading ? 'Generuji...' : 'Vygenerovat QR'}
</Button>
</>
)}
{success && (
<Button variant="secondary" onClick={onClose}>Zavřít</Button>
)}
</Modal.Footer>
</Modal>
);
}