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import Box from '@mui/material/Box';
import Typography from '@mui/material/Typography';
import Table from '@mui/material/Table';
import TableBody from '@mui/material/TableBody';
import TableCell from '@mui/material/TableCell';
import TableContainer from '@mui/material/TableContainer';
import TableHead from '@mui/material/TableHead';
import TableRow from '@mui/material/TableRow';
import Paper from '@mui/material/Paper';
import useMediaQuery from '@mui/material/useMediaQuery';
import OlympicLoader from '../components/OlympicLoader';
import Seo from '../components/Seo';
import { useTheme } from '@mui/material/styles';
import { useTranslation } from 'react-i18next';
import { useLanguageStore } from '../stores/useLanguageStore';
import { useCartStore, type CartItem } from '../stores/useCartStore';
import { useReloadCart } from '../hooks/useReloadCart';
import { useAuthStore } from '../stores/useAuthStore';
import { useCustomSnackbar } from '../hooks/useCustomSnackbar';
import { ErrorDisplay } from '../components/ErrorDisplay';
import { CartItemDisplay } from '../components/CartItemDisplay';
import { CartSummary } from '../components/CartSummary';
import { useNavigate } from 'react-router-dom';
import { PageWrapper } from '../components/PageWrapper';
export default function CartPage() {
const { t } = useTranslation(['cart', 'common']);
const lang = useLanguageStore((s) => s.lang);
const navigate = useNavigate();
// ── Hooks / Store / Snackbar ─────────────────────────────────────────────
const { loading, hasError, reload } = useReloadCart();
const items = useCartStore((s) => s.items);
const addItem = useCartStore.getState().addItem;
const isLocked = useCartStore(s => s.isLocked);
const { notify } = useCustomSnackbar();
const token = useAuthStore(s => s.authToken);
// CGV
const [acceptedCGV, setAcceptedCGV] = useState(false);
// Calcul du total global et mémorisation
// Utilisation de useMemo pour éviter les recalculs inutiles
const total = useMemo(
() => items.reduce((sum, i) => sum + i.quantity * i.price, 0),
[items]
);
// Recharger le panier au montage et quand la langue change
useEffect(() => {
reload();
}, [reload, lang]);
// Pour détecter l’écran « mobile » (< 600px)
const theme = useTheme();
const isMobile = useMediaQuery(theme.breakpoints.down('sm'));
// Ajustement de la quantité d’un article
const adjustQty = useCallback(
async (item: CartItem, newQty: number) => {
if (isLocked) {
notify(t('cart:errors.cart_locked'), 'warning');
return;
}
if (newQty < 0) newQty = 0;
if (newQty > item.availableQuantity) {
notify(t('cart:cart.not_enough_stock', { count: item.availableQuantity }), 'warning');
return;
}
try {
await addItem(item.id, newQty, item.availableQuantity);
if (newQty > item.quantity) {
notify(t('cart:cart.add_success'), 'success');
} else if (newQty < item.quantity) {
notify(t('cart:cart.remove_success'), 'success');
} else {
notify(t('cart:cart.update_success'), 'info');
}
} catch (err: any) {
if (err.message === 'CartLocked') {
notify(t('cart:errors.cart_locked'), 'warning');
} else {
notify(t('cart:errors.error_update'), 'error');
}
}
},
[addItem, notify, t, isLocked]
);
// Clic “Payer”
const handlePay = () => {
if (isLocked) {
notify(t('cart:errors.cart_locked'), 'warning');
return;
}
if (!acceptedCGV) {
notify(t('cart:cart.cgv_not_accepted'), 'warning');
return;
}
if (!token) {
// on redirige vers login avec next vers le panier
navigate('/login?next=/cart');
return;
}
// déjà connecté
navigate('/checkout');
};
// ── ÉTAT DE CHARGEMENT / ERREUR / PANIER VIDE ────────────────────────────────
if (loading) {
return (
<>
<Seo title={t('cart:seo.title')} description={t('cart:seo.description')} />
<Box sx={{ textAlign: 'center', py: 4 }}>
<OlympicLoader />
</Box>
</>
);
}
if (hasError) {
return (
<PageWrapper>
<ErrorDisplay
title={t('cart:errors.error_loading')}
message={t('cart:errors.error_loading_message')}
showRetry={true}
retryButtonText={t('common:errors.retry')}
onRetry={reload}
showHome={true}
homeButtonText={t('common:errors.home')}
/>
</PageWrapper>
);
}
if (items.length === 0) {
return (
<PageWrapper>
<ErrorDisplay
title={t('cart:cart.empty')}
message={t('cart:errors.empty_message')}
showRetry={false}
showHome={true}
homeButtonText={t('common:errors.home')}
/>
</PageWrapper>
);
}
const renderLockBanner = () => (
isLocked ? (
<Box sx={{ mb: 2 }}>
<Typography variant="body2" color="warning.main">
{t('cart:cart.payment_in_progress')}
</Typography>
</Box>
) : null
);
// ── RENDER DES ÉLÉMENTS ──────────────────────────────────────────────────────
// 1) Version “Table” (desktop / tablette)
const renderTable = () => (
<TableContainer
component={Paper}
sx={{
mb: 3,
overflowX: 'auto',
border: '1px solid',
borderColor: 'divider',
borderRadius: 1,
}}
>
<Table>
<TableHead>
<TableRow>
<TableCell>{t('cart:table.product')}</TableCell>
<TableCell align="right">{t('cart:table.unit_price')}</TableCell>
<TableCell align="center">{t('cart:table.quantity')}</TableCell>
<TableCell align="right">{t('cart:cart.total')}</TableCell>
</TableRow>
</TableHead>
<TableBody>
{items.map((item) => (
<CartItemDisplay
key={item.id}
item={item}
lang={lang}
adjustQty={adjustQty}
isMobile={false}
disabled={isLocked}
/>
))}
</TableBody>
</Table>
</TableContainer>
);
// 2) Version “Carte” (mobile)
const renderCards = () => (
<Box sx={{ display: 'flex', flexDirection: 'column', gap: 2, mb: 3 }}>
{items.map((item) => (
<CartItemDisplay
key={item.id}
item={item}
lang={lang}
adjustQty={adjustQty}
isMobile={true}
disabled={isLocked}
/>
))}
</Box>
);
// ── RENDER FINAL ─────────────────────────────────────────────────────────────
return (
<>
<Seo title={t('cart:seo.title')} description={t('cart:seo.description')} />
<Box sx={{ p: { xs: 2, md: 4 } }}>
<Typography variant="h4" gutterBottom>
{t('cart:cart.title')}
</Typography>
{renderLockBanner()}
{isMobile ? renderCards() : renderTable()}
<CartSummary
total={total}
acceptedCGV={acceptedCGV}
onCgvChange={checked => setAcceptedCGV(checked)}
onPay={handlePay}
lang={lang}
isMobile={isMobile}
disabled={isLocked}
/>
</Box>
</>
);
}
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