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'use client'
import { useState } from 'react'
import {
Dialog,
DialogContent,
DialogDescription,
DialogFooter,
DialogHeader,
DialogTitle,
} from '@/components/ui/dialog'
import { Badge } from '@/components/ui/badge'
import { Button } from '@/components/ui/button'
import { Separator } from '@/components/ui/separator'
import { Loader2, FileCheck2, Lock, ShieldCheck } from 'lucide-react'
import { formatEuro, formatDate, daysUntil } from '@/lib/format'
import { toast } from 'sonner'
import { cn } from '@/lib/utils'
export interface Invoice {
id: string
number: string
status: string
type: string
issueDate: string
dueDate: string
paidDate: string | null
netCents: number
taxBp: number
grossCents: number
zugferd: boolean
xrechnung: boolean
datevExported: boolean
company: { id: string; name: string }
lines: { id: string; description: string; quantity: number; unitCents: number; totalCents: number }[]
}
const STATUS_META: Record<string, { label: string; cls: string }> = {
draft: { label: 'Entwurf', cls: 'bg-muted text-foreground' },
sent: { label: 'Versendet', cls: 'bg-foreground/70 text-background' },
paid: { label: 'Bezahlt', cls: 'bg-foreground text-background' },
overdue: { label: 'Überfällig', cls: 'bg-foreground text-background' },
cancelled: { label: 'Storniert', cls: 'bg-muted text-muted-foreground' },
storno: { label: 'Storno', cls: 'bg-muted text-muted-foreground' },
}
const TYPE_LABELS: Record<string, string> = {
final: 'Schlussrechnung',
partial: 'Abschlagszahlung',
recurring: 'Wiederkehrend',
credit: 'Gutschrift',
}
interface Props {
invoice: Invoice | null
open: boolean
onOpenChange: (o: boolean) => void
onFinalized: () => void
}
export function InvoiceDetailDialog({ invoice, open, onOpenChange, onFinalized }: Props) {
const [finalizing, setFinalizing] = useState(false)
const [wantXrechnung, setWantXrechnung] = useState(false)
if (!invoice) return null
const st = STATUS_META[invoice.status] ?? STATUS_META.draft
const dueDays = daysUntil(invoice.dueDate)
const isDraft = invoice.status === 'draft'
const finalize = async () => {
setFinalizing(true)
const t = toast.loading('Rechnung wird finalisiert (E-Rechnung generiert)…')
try {
const r = await fetch(`/api/aos/finance/${invoice.id}/finalize`, {
method: 'PATCH',
headers: { 'content-type': 'application/json' },
body: JSON.stringify({ zugferd: true, xrechnung: wantXrechnung }),
})
if (!r.ok) throw new Error('finalize failed')
toast.success('Rechnung finalisiert und versendet', { id: t })
onOpenChange(false)
onFinalized()
} catch {
toast.error('Finalisierung fehlgeschlagen', { id: t })
} finally {
setFinalizing(false)
}
}
return (
<Dialog open={open} onOpenChange={onOpenChange}>
<DialogContent className="sm:max-w-2xl">
<DialogHeader>
<div className="flex items-start justify-between gap-3">
<div>
<DialogTitle className="flex items-center gap-2 font-mono">
{invoice.number}
</DialogTitle>
<DialogDescription className="mt-1">
{invoice.company.name} · {TYPE_LABELS[invoice.type] ?? invoice.type}
</DialogDescription>
</div>
<Badge variant="outline" className={cn('text-[10px]', st.cls)}>{st.label}</Badge>
</div>
</DialogHeader>
<div className="space-y-4">
{/* Meta */}
<div className="grid grid-cols-2 gap-3 text-xs sm:grid-cols-4">
<Meta label="Rechnungsdatum" value={formatDate(invoice.issueDate)} />
<Meta label="Fällig" value={formatDate(invoice.dueDate)} sub={dueDays < 0 && invoice.status === 'sent' ? `${Math.abs(dueDays)} d überfällig` : undefined} />
<Meta label="Bezahlt am" value={invoice.paidDate ? formatDate(invoice.paidDate) : '—'} />
<Meta label="Steuersatz" value={`${(invoice.taxBp / 100).toFixed(0)} %`} />
</div>
{/* Lines */}
<div className="rounded-md border border-border">
<div className="border-b border-border bg-muted/40 px-3 py-2 text-[10px] uppercase tracking-wide text-muted-foreground">
Rechnungspositionen ({invoice.lines.length})
</div>
<div className="divide-y divide-border">
{invoice.lines.map((l) => (
<div key={l.id} className="flex items-center justify-between gap-3 px-3 py-2.5">
<div className="min-w-0">
<p className="truncate text-xs font-medium">{l.description}</p>
<p className="text-[10px] text-muted-foreground">{l.quantity} × {formatEuro(l.unitCents)}</p>
</div>
<p className="shrink-0 text-xs font-semibold tabular-nums">{formatEuro(l.totalCents)}</p>
</div>
))}
</div>
<Separator />
<div className="space-y-1 px-3 py-2.5 text-xs">
<Row label="Netto" value={formatEuro(invoice.netCents)} />
<Row label={`USt (${(invoice.taxBp / 100).toFixed(0)} %)`} value={formatEuro(invoice.grossCents - invoice.netCents)} />
<Separator className="my-1" />
<Row label="Brutto" value={formatEuro(invoice.grossCents)} strong />
</div>
</div>
{/* E-Rechnung status */}
<div className="rounded-md border border-border bg-muted/20 p-3">
<div className="flex items-center gap-2">
<FileCheck2 className="size-4 text-muted-foreground" />
<p className="text-xs font-semibold">E-Rechnung-Status</p>
</div>
<div className="mt-2 flex flex-wrap gap-1.5">
<Badge variant={invoice.zugferd ? 'default' : 'outline'} className="text-[10px]">ZUGFeRD {invoice.zugferd ? '✓' : '—'}</Badge>
<Badge variant={invoice.xrechnung ? 'default' : 'outline'} className="text-[10px]">XRechnung {invoice.xrechnung ? '✓' : '—'}</Badge>
<Badge variant={invoice.datevExported ? 'default' : 'outline'} className="text-[10px]">DATEV {invoice.datevExported ? '✓' : '—'}</Badge>
</div>
<p className="mt-2 text-[10px] text-muted-foreground">
EN 16931 validiert via <code className="rounded bg-muted px-1 py-0.5 font-mono">@e-invoice-eu/core</code>. GoBD: Finalisierung sperrt nachträgliches Editieren (Storno via neue Zeile).
</p>
</div>
{/* Dunning */}
{invoice.status === 'overdue' && (
<div className="rounded-md border border-foreground/30 bg-foreground/5 p-3 text-xs">
<p className="font-medium">Mahnstufe 1 fällig</p>
<p className="mt-0.5 text-muted-foreground">Überfällig seit {Math.abs(dueDays)} Tagen. Automatisches Mahnwesen konfigurierbar (3 Stufen → Suspendierung verknüpfter Lizenz).</p>
</div>
)}
</div>
<DialogFooter className="gap-2">
{isDraft ? (
<>
<label className="flex items-center gap-2 text-xs text-muted-foreground">
<input
type="checkbox"
checked={wantXrechnung}
onChange={(e) => setWantXrechnung(e.target.checked)}
className="size-3.5 rounded border-border"
/>
XRechnung (öffentlicher Kunde)
</label>
<Button variant="outline" onClick={() => onOpenChange(false)}>Abbrechen</Button>
<Button onClick={finalize} disabled={finalizing} className="gap-1.5">
{finalizing ? <Loader2 className="size-3.5 animate-spin" /> : <Lock className="size-3.5" />}
Finalisieren & versenden
</Button>
</>
) : (
<>
<div className="mr-auto flex items-center gap-1.5 text-[11px] text-muted-foreground">
<ShieldCheck className="size-3.5" />
Finalisiert · lückenlos nummeriert
</div>
<Button variant="outline" onClick={() => onOpenChange(false)}>Schließen</Button>
</>
)}
</DialogFooter>
</DialogContent>
</Dialog>
)
}
function Meta({ label, value, sub }: { label: string; value: string; sub?: string }) {
return (
<div>
<p className="text-[10px] uppercase tracking-wide text-muted-foreground">{label}</p>
<p className="mt-0.5 text-xs font-medium">{value}</p>
{sub && <p className="text-[10px] text-foreground">{sub}</p>}
</div>
)
}
function Row({ label, value, strong }: { label: string; value: string; strong?: boolean }) {
return (
<div className={cn('flex items-center justify-between', strong && 'font-semibold')}>
<span className="text-muted-foreground">{label}</span>
<span className="tabular-nums">{value}</span>
</div>
)
}