feat(T06): Verkaufsmodul + Rechtsdokumente + DATEV-Export + Sales UI

This commit is contained in:
2026-07-17 01:58:34 +02:00
parent a38d340ddc
commit 6603e411e9
33 changed files with 3481 additions and 107 deletions
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'use client';
import { useState } from 'react';
import { Button } from '@/components/ui/Button';
import { getContractDownloadUrl, regenerateContract } from '@/lib/sales';
interface ContractPreviewProps {
saleId: string;
contractPdfPath?: string | null;
}
export function ContractPreview({ saleId, contractPdfPath }: ContractPreviewProps) {
const [regenerating, setRegenerating] = useState(false);
const [error, setError] = useState<string | null>(null);
const [pdfPath, setPdfPath] = useState<string | null>(contractPdfPath || null);
const handleRegenerate = async () => {
setRegenerating(true);
setError(null);
try {
const result = await regenerateContract(saleId);
setPdfPath(result.contract_pdf_path);
} catch (err: unknown) {
const apiErr = err as { error?: { message?: string } };
setError(apiErr?.error?.message || 'Failed to regenerate contract');
} finally {
setRegenerating(false);
}
};
const downloadUrl = getContractDownloadUrl(saleId);
return (
<div className="space-y-4" data-testid="contract-preview">
<div className="flex items-center justify-between">
<h2 className="text-xl font-bold">Vertrags-PDF</h2>
<div className="flex gap-2">
<Button
onClick={handleRegenerate}
disabled={regenerating}
data-testid="contract-regenerate-btn"
>
{regenerating ? 'Wird erstellt...' : 'Vertrag neu generieren'}
</Button>
{pdfPath && (
<a href={downloadUrl} target="_blank" rel="noopener noreferrer" data-testid="contract-download-link">
<Button>Herunterladen</Button>
</a>
)}
</div>
</div>
{error && (
<div className="bg-red-50 text-red-600 p-3 rounded" data-testid="contract-error">
{error}
</div>
)}
{pdfPath ? (
<iframe
src={downloadUrl}
className="w-full h-[600px] border rounded"
data-testid="contract-iframe"
title="Vertrags-PDF"
/>
) : (
<div className="bg-gray-50 p-8 text-center rounded" data-testid="contract-empty">
<p className="text-gray-500">Es wurde noch kein Vertrag generiert.</p>
<p className="text-sm text-gray-400 mt-2">
Klicken Sie auf "Vertrag neu generieren", um ein PDF zu erstellen.
</p>
</div>
)}
</div>
);
}
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'use client';
import { useState, useEffect, useCallback } from 'react';
import { Button } from '@/components/ui/Button';
import { Input } from '@/components/ui/Input';
import { Table } from '@/components/ui/Table';
import {
createDatevExport,
listDatevExports,
getDatevDownloadUrl,
type DATEVExportResponse,
} from '@/lib/datev';
import type { PaginatedResponse } from '@/lib/api';
export function DatevExport() {
const [exports, setExports] = useState<DATEVExportResponse[]>([]);
const [total, setTotal] = useState(0);
const [loading, setLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const [success, setSuccess] = useState<string | null>(null);
const [startDate, setStartDate] = useState('');
const [endDate, setEndDate] = useState('');
const [creating, setCreating] = useState(false);
const fetchExports = useCallback(async () => {
setLoading(true);
setError(null);
try {
const data: PaginatedResponse<DATEVExportResponse> = await listDatevExports();
setExports(data.items);
setTotal(data.total);
} catch (err: unknown) {
const apiErr = err as { error?: { message?: string } };
setError(apiErr?.error?.message || 'Failed to load exports');
} finally {
setLoading(false);
}
}, []);
useEffect(() => {
fetchExports();
}, [fetchExports]);
const handleCreateExport = async (e: React.FormEvent) => {
e.preventDefault();
setCreating(true);
setError(null);
setSuccess(null);
try {
const result = await createDatevExport({ start_date: startDate, end_date: endDate });
setSuccess(`Export erstellt: ${result.total_amount} EUR`);
fetchExports();
} catch (err: unknown) {
const apiErr = err as { error?: { message?: string } };
setError(apiErr?.error?.message || 'Failed to create export');
} finally {
setCreating(false);
}
};
const columns = [
{
key: 'start_date',
label: 'Von',
render: (row: DATEVExportResponse) =>
new Date(row.start_date).toLocaleDateString('de-DE'),
},
{
key: 'end_date',
label: 'Bis',
render: (row: DATEVExportResponse) =>
new Date(row.end_date).toLocaleDateString('de-DE'),
},
{
key: 'total_amount',
label: 'Gesamtbetrag',
render: (row: DATEVExportResponse) =>
new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(row.total_amount),
},
{
key: 'created_at',
label: 'Erstellt am',
render: (row: DATEVExportResponse) =>
row.created_at ? new Date(row.created_at).toLocaleString('de-DE') : 'N/A',
},
{
key: 'actions',
label: 'Aktion',
render: (row: DATEVExportResponse) => (
<a
href={getDatevDownloadUrl(row.id)}
data-testid={`datev-download-${row.id}`}
className="text-primary hover:underline"
>
CSV herunterladen
</a>
),
},
];
return (
<div className="space-y-4" data-testid="datev-export">
<h1 className="text-2xl font-bold">DATEV Export</h1>
{/* Create export form */}
<form onSubmit={handleCreateExport} className="flex gap-4 items-end" data-testid="datev-export-form">
<div className="flex-1">
<label className="block text-sm font-medium mb-1">Von Datum *</label>
<Input
data-testid="datev-start-date"
type="date"
value={startDate}
onChange={e => setStartDate(e.target.value)}
required
/>
</div>
<div className="flex-1">
<label className="block text-sm font-medium mb-1">Bis Datum *</label>
<Input
data-testid="datev-end-date"
type="date"
value={endDate}
onChange={e => setEndDate(e.target.value)}
required
/>
</div>
<Button type="submit" disabled={creating} data-testid="datev-create-btn">
{creating ? 'Wird erstellt...' : 'Export erstellen'}
</Button>
</form>
{error && (
<div className="bg-red-50 text-red-600 p-3 rounded" data-testid="datev-error">
{error}
</div>
)}
{success && (
<div className="bg-green-50 text-green-600 p-3 rounded" data-testid="datev-success">
{success}
</div>
)}
{loading ? (
<div data-testid="datev-loading">Wird geladen...</div>
) : (
<Table columns={columns} data={exports} rowKey={(row) => row.id} />
)}
{total === 0 && !loading && (
<p className="text-gray-500" data-testid="datev-empty">Noch keine Exporte vorhanden.</p>
)}
</div>
);
}
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'use client';
import { useState } from 'react';
import { useRouter } from 'next/navigation';
import { Button } from '@/components/ui/Button';
import { Input } from '@/components/ui/Input';
import { createSale, type SaleCreateData } from '@/lib/sales';
import { listVehicles, type VehicleResponse } from '@/lib/vehicles';
import { useEffect, useCallback } from 'react';
import type { PaginatedResponse } from '@/lib/api';
export function SaleForm() {
const router = useRouter();
const [vehicles, setVehicles] = useState<VehicleResponse[]>([]);
const [loading, setLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const [formData, setFormData] = useState<SaleCreateData>({
vehicle_id: '',
buyer_contact_id: '',
sale_price: 0,
sale_date: new Date().toISOString().split('T')[0],
status: 'draft',
is_gwg: false,
});
const fetchVehicles = useCallback(async () => {
try {
const data: PaginatedResponse<VehicleResponse> = await listVehicles({ page: 1, page_size: 100 });
setVehicles(data.items.filter(v => v.availability === 'available'));
} catch {
// ignore - vehicles list is optional
}
}, []);
useEffect(() => {
fetchVehicles();
}, [fetchVehicles]);
const handleSubmit = async (e: React.FormEvent) => {
e.preventDefault();
setLoading(true);
setError(null);
try {
const sale = await createSale(formData);
router.push(`/de/verkauf/${sale.id}`);
} catch (err: unknown) {
const apiErr = err as { error?: { message?: string } };
setError(apiErr?.error?.message || 'Failed to create sale');
} finally {
setLoading(false);
}
};
return (
<form onSubmit={handleSubmit} className="space-y-4 max-w-2xl" data-testid="sale-form">
<h1 className="text-2xl font-bold">Neuer Verkauf</h1>
{error && (
<div className="bg-red-50 text-red-600 p-3 rounded" data-testid="sale-form-error">
{error}
</div>
)}
<div>
<label className="block text-sm font-medium mb-1">Fahrzeug *</label>
<select
data-testid="sale-vehicle-select"
className="w-full border rounded px-3 py-2"
value={formData.vehicle_id}
onChange={e => setFormData(prev => ({ ...prev, vehicle_id: e.target.value }))}
required
>
<option value="">Fahrzeug auswählen</option>
{vehicles.map(v => (
<option key={v.id} value={v.id}>
{v.make} {v.model} - {v.fin}
</option>
))}
</select>
</div>
<div>
<label className="block text-sm font-medium mb-1">Käufer Kontakt ID *</label>
<Input
data-testid="sale-buyer-input"
value={formData.buyer_contact_id}
onChange={e => setFormData(prev => ({ ...prev, buyer_contact_id: e.target.value }))}
placeholder="UUID des Käufer-Kontakts"
required
/>
</div>
<div>
<label className="block text-sm font-medium mb-1">Verkaufspreis (EUR) *</label>
<Input
data-testid="sale-price-input"
type="number"
step="0.01"
min="0"
value={formData.sale_price}
onChange={e => setFormData(prev => ({ ...prev, sale_price: parseFloat(e.target.value) || 0 }))}
required
/>
</div>
<div>
<label className="block text-sm font-medium mb-1">Verkaufsdatum</label>
<Input
data-testid="sale-date-input"
type="date"
value={formData.sale_date}
onChange={e => setFormData(prev => ({ ...prev, sale_date: e.target.value }))}
/>
</div>
<div>
<label className="block text-sm font-medium mb-1">Status</label>
<select
data-testid="sale-status-select"
className="w-full border rounded px-3 py-2"
value={formData.status}
onChange={e => setFormData(prev => ({ ...prev, status: e.target.value }))}
>
<option value="draft">Entwurf</option>
<option value="completed">Abgeschlossen</option>
</select>
</div>
<div className="flex items-center gap-2">
<input
data-testid="sale-gwg-toggle"
type="checkbox"
id="is_gwg"
checked={formData.is_gwg}
onChange={e => setFormData(prev => ({ ...prev, is_gwg: e.target.checked }))}
className="w-4 h-4"
/>
<label htmlFor="is_gwg" className="text-sm font-medium">
Geringwertiges Wirtschaftsgut (GwG) - §6 Abs. 2 EStG
</label>
</div>
<div className="flex gap-2">
<Button type="submit" disabled={loading} data-testid="sale-submit-btn">
{loading ? 'Wird gespeichert...' : 'Verkauf anlegen'}
</Button>
<Button type="button" onClick={() => router.back()} variant="secondary">
Abbrechen
</Button>
</div>
</form>
);
}
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'use client';
import { useState, useEffect, useCallback } from 'react';
import { useRouter } from 'next/navigation';
import { Table } from '@/components/ui/Table';
import { Button } from '@/components/ui/Button';
import { Input } from '@/components/ui/Input';
import {
listSales,
type SaleResponse,
type SaleListParams,
} from '@/lib/sales';
import type { PaginatedResponse } from '@/lib/api';
const STATUS_OPTIONS = ['draft', 'completed', 'cancelled'];
export function SaleList() {
const router = useRouter();
const [sales, setSales] = useState<SaleResponse[]>([]);
const [total, setTotal] = useState(0);
const [page, setPage] = useState(1);
const [pageSize] = useState(20);
const [loading, setLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const [filters, setFilters] = useState<SaleListParams>({
page: 1,
page_size: 20,
});
const fetchSales = useCallback(async () => {
setLoading(true);
setError(null);
try {
const data: PaginatedResponse<SaleResponse> = await listSales(filters);
setSales(data.items);
setTotal(data.total);
setPage(data.page);
} catch (err: unknown) {
const apiErr = err as { error?: { message?: string } };
setError(apiErr?.error?.message || 'Failed to load sales');
} finally {
setLoading(false);
}
}, [filters]);
useEffect(() => {
fetchSales();
}, [fetchSales]);
const handleFilterChange = (key: keyof SaleListParams, value: string) => {
setFilters(prev => ({
...prev,
page: 1,
[key]: value || undefined,
}));
};
const handlePageChange = (newPage: number) => {
setFilters(prev => ({ ...prev, page: newPage }));
};
const columns = [
{
key: 'sale_date',
label: 'Datum',
render: (row: SaleResponse) =>
new Date(row.sale_date).toLocaleDateString('de-DE'),
},
{
key: 'vehicle',
label: 'Fahrzeug',
render: (row: SaleResponse) =>
row.vehicle ? `${row.vehicle.make} ${row.vehicle.model}` : 'N/A',
},
{
key: 'buyer',
label: 'Käufer',
render: (row: SaleResponse) =>
row.buyer?.company_name || 'N/A',
},
{
key: 'sale_price',
label: 'Preis',
render: (row: SaleResponse) =>
new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(row.sale_price),
},
{
key: 'status',
label: 'Status',
render: (row: SaleResponse) => (
<span
data-testid={`sale-status-${row.id}`}
className={`px-2 py-1 rounded text-xs font-medium ${
row.status === 'completed' ? 'bg-green-100 text-green-800' :
row.status === 'cancelled' ? 'bg-red-100 text-red-800' :
'bg-yellow-100 text-yellow-800'
}`}
>
{row.status}
</span>
),
},
{
key: 'is_gwg',
label: 'GwG',
render: (row: SaleResponse) =>
row.is_gwg ? (
<span data-testid={`sale-gwg-${row.id}`} className="text-blue-600 font-medium">Ja</span>
) : 'Nein',
},
{
key: 'actions',
label: 'Aktionen',
render: (row: SaleResponse) => (
<button
data-testid={`sale-row-${row.id}`}
onClick={() => router.push(`/de/verkauf/${row.id}`)}
className="text-primary hover:underline"
>
Details
</button>
),
},
];
const totalPages = Math.ceil(total / pageSize);
return (
<div className="space-y-4" data-testid="sale-list">
<div className="flex items-center justify-between">
<h1 className="text-2xl font-bold">Verkäufe</h1>
<Button onClick={() => router.push('/de/verkauf/neu')} data-testid="sale-create-btn">
Neuer Verkauf
</Button>
</div>
{/* Filters */}
<div className="flex gap-4 items-end" data-testid="sale-filters">
<div className="flex-1">
<label className="block text-sm font-medium mb-1">Status</label>
<select
data-testid="sale-status-filter"
className="w-full border rounded px-3 py-2"
value={filters.status || ''}
onChange={e => handleFilterChange('status', e.target.value)}
>
<option value="">Alle</option>
{STATUS_OPTIONS.map(s => (
<option key={s} value={s}>{s}</option>
))}
</select>
</div>
<div className="flex-1">
<label className="block text-sm font-medium mb-1">Von</label>
<Input
type="date"
data-testid="sale-date-from"
value={filters.date_from || ''}
onChange={e => handleFilterChange('date_from', e.target.value)}
/>
</div>
<div className="flex-1">
<label className="block text-sm font-medium mb-1">Bis</label>
<Input
type="date"
data-testid="sale-date-to"
value={filters.date_to || ''}
onChange={e => handleFilterChange('date_to', e.target.value)}
/>
</div>
</div>
{error && (
<div className="bg-red-50 text-red-600 p-3 rounded" data-testid="sale-error">
{error}
</div>
)}
{loading ? (
<div data-testid="sale-loading">Wird geladen...</div>
) : (
<Table columns={columns} data={sales} rowKey={(row) => row.id} />
)}
{/* Pagination */}
{totalPages > 1 && (
<div className="flex items-center justify-between" data-testid="sale-pagination">
<Button
disabled={page <= 1}
onClick={() => handlePageChange(page - 1)}
>
Zurück
</Button>
<span>Seite {page} von {totalPages}</span>
<Button
disabled={page >= totalPages}
onClick={() => handlePageChange(page + 1)}
>
Weiter
</Button>
</div>
)}
</div>
);
}