added billing creation

app/admin/clients/[id]/billing/page.tsx

@@ -0,0 +1,9 @@
+import { Params } from "@/modules/shared/types/user"
+import { BillingPanel } from "@/modules/shared/ui/views/billing-panel"
+
+const BillingAdminPage = async ({ params } : { params: Params }) => {
+  const { id } = await params
+  return <BillingPanel profileId={id} isAdmin />
+}
+
+export default BillingAdminPage

app/admin/clients/[id]/data/page.tsx

@@ -1,10 +1,18 @@
-import StammdatenAdminViewPage from "@/modules/admin/ui/views/stammdaten-admin-view"
-
-type Params = Promise<{ id: string }>;
+import { getStammdaten } from "@/modules/shared/queries/stammdaten"
+import { Params } from "@/modules/shared/types/user"
+import { StammdatenPanel } from "@/modules/shared/ui/views/stammdaten-panel"
 
 const DataAdminPage = async ({ params }: { params: Params }) => {
   const { id } = await params
-  return <StammdatenAdminViewPage clientProfileId={id} />
+  const stammdaten = await getStammdaten(id)
+
+  return (
+    <StammdatenPanel
+      profileId={id}
+      client={stammdaten?.client ?? null}
+      paymentDetails={stammdaten?.paymentDetails ?? null}
+    />
+  )
 }
 
 export default DataAdminPage

app/admin/clients/[id]/layout.tsx

@@ -1,8 +1,7 @@
 import { notFound, redirect } from "next/navigation";
 import { createAdminClient } from "@/lib/supabase/admin";
 import { verifySession } from "@/lib/supabase/dal";
-
-type Params = Promise<{ id: string }>;
+import { Params } from "@/modules/shared/types/user";
 
 export default async function ClientDetailLayout({
     children,

app/admin/clients/[id]/page.tsx

@@ -1,7 +1,7 @@
 import { notFound } from "next/navigation";
 import { createAdminClient } from "@/lib/supabase/admin";
+import { Params } from "@/modules/shared/types/user";
 
-type Params = Promise<{ id: string }>;
 
 const ClientDetailPage = async ({ params }: { params: Params }) => {
     const { id } = await params;

app/admin/clients/[id]/passwords/page.tsx

@@ -1,10 +1,9 @@
-import PasswordAdminViewPage from "@/modules/admin/ui/views/password-admin-view"
-
-type Params = Promise<{id: string}>
+import { Params } from "@/modules/shared/types/user"
+import { CredentialsPanel } from "@/modules/shared/ui/views/credentials-panel"
 
 const PasswordAdminPage = async ({ params } : { params: Params }) => {
     const { id } = await params
-  return <PasswordAdminViewPage clientProfileId={id}/>
+  return <CredentialsPanel profileId={id} isAdmin />
 }
 
-export default PasswordAdminPage
+export default PasswordAdminPage

app/api/invoices/pdf/route.ts

@@ -0,0 +1,45 @@
+import * as z from "zod"
+import { zipSync } from "fflate"
+import type { NextRequest } from "next/server"
+import { getSession } from "@/lib/supabase/dal"
+import { getInvoicesForPdf } from "@/modules/shared/queries/invoices"
+import { invoiceFileName, renderInvoicePdf } from "@/modules/shared/pdf/render-invoice"
+
+const IdsSchema = z.array(z.string().uuid()).min(1).max(100)
+
+// Zugriff regelt RLS: Clients bekommen nur eigene, nicht stornierte Rechnungen zurück.
+export async function GET(request: NextRequest) {
+    const user = await getSession()
+    if (!user) return Response.json({ error: "Nicht angemeldet." }, { status: 401 })
+
+    const parsed = IdsSchema.safeParse(request.nextUrl.searchParams.getAll("id"))
+    if (!parsed.success) return Response.json({ error: "Ungültige Auswahl." }, { status: 400 })
+
+    const invoices = await getInvoicesForPdf(parsed.data)
+    if (invoices.length === 0) return Response.json({ error: "Keine Rechnungen gefunden." }, { status: 404 })
+
+    if (invoices.length === 1) {
+        const pdf = await renderInvoicePdf(invoices[0])
+        const disposition = request.nextUrl.searchParams.has("inline") ? "inline" : "attachment"
+        return new Response(new Uint8Array(pdf), {
+            headers: {
+                "Content-Type": "application/pdf",
+                "Content-Disposition": `${disposition}; filename="${invoiceFileName(invoices[0].invoiceNumber)}"`,
+                "Cache-Control": "no-store",
+            },
+        })
+    }
+
+    const files: Record<string, Uint8Array> = {}
+    for (const invoice of invoices) {
+        files[invoiceFileName(invoice.invoiceNumber)] = new Uint8Array(await renderInvoicePdf(invoice))
+    }
+
+    return new Response(zipSync(files, { level: 0 }), {
+        headers: {
+            "Content-Type": "application/zip",
+            "Content-Disposition": "attachment; filename=\"Rechnungen.zip\"",
+            "Cache-Control": "no-store",
+        },
+    })
+}

app/api/invoices/preview/route.ts

@@ -0,0 +1,41 @@
+import * as z from "zod"
+import { getProfile } from "@/lib/supabase/dal"
+import { InvoiceDraftSchema, firstIssueMessage } from "@/modules/shared/schemas/invoice"
+import { renderInvoicePdf } from "@/modules/shared/pdf/render-invoice"
+
+const PreviewSchema = z.object({
+    draft: InvoiceDraftSchema,
+    invoiceNumber: z.string().trim().min(1).max(40),
+})
+
+export async function POST(request: Request) {
+    const profile = await getProfile()
+    if (!profile) return Response.json({ error: "Nicht angemeldet." }, { status: 401 })
+    if (profile.role !== "admin") return Response.json({ error: "Keine Berechtigung." }, { status: 403 })
+
+    const parsed = PreviewSchema.safeParse(await request.json().catch(() => null))
+    if (!parsed.success) {
+        return Response.json({ error: firstIssueMessage(parsed.error) }, { status: 400 })
+    }
+
+    const { draft, invoiceNumber } = parsed.data
+    const pdf = await renderInvoicePdf({
+        invoiceNumber,
+        invoiceDate: draft.invoiceDate,
+        dueDate: draft.dueDate,
+        companyName: draft.companyName,
+        billingStreet: draft.billingStreet,
+        billingPostalCode: draft.billingPostalCode,
+        billingCity: draft.billingCity,
+        billingCountry: draft.billingCountry,
+        items: draft.items,
+    })
+
+    return new Response(new Uint8Array(pdf), {
+        headers: {
+            "Content-Type": "application/pdf",
+            "Content-Disposition": "inline; filename=\"Vorschau.pdf\"",
+            "Cache-Control": "no-store",
+        },
+    })
+}

app/client/billing/page.tsx

@@ -0,0 +1,9 @@
+import { verifySession } from "@/lib/supabase/dal"
+import { BillingPanel } from "@/modules/shared/ui/views/billing-panel";
+
+const BillingPage = async () => {
+  const session = await verifySession();
+  return <BillingPanel profileId={session.userId} isAdmin={false}/>
+}
+
+export default BillingPage

app/client/data/page.tsx

@@ -1,7 +1,18 @@
-import StammdatenClientViewPage from "@/modules/client/ui/views/stammdaten-client-view"
+import { verifySession } from "@/lib/supabase/dal"
+import { getStammdaten } from "@/modules/shared/queries/stammdaten"
+import { StammdatenPanel } from "@/modules/shared/ui/views/stammdaten-panel"
 
-const DataPage = () => {
-  return <StammdatenClientViewPage/>
+const DataPage = async () => {
+  const session = await verifySession()
+  const stammdaten = await getStammdaten(session.userId)
+
+  return (
+    <StammdatenPanel
+      profileId={session.userId}
+      client={stammdaten?.client ?? null}
+      paymentDetails={stammdaten?.paymentDetails ?? null}
+    />
+  )
 }
 
-export default DataPage
+export default DataPage

app/client/passwords/page.tsx

@@ -1,7 +1,9 @@
-import PasswordClientViewPage from "@/modules/client/ui/views/password-client-view"
+import { verifySession } from "@/lib/supabase/dal"
+import { CredentialsPanel } from "@/modules/shared/ui/views/credentials-panel"
 
-const PasswordPage = () => {
-  return <PasswordClientViewPage/>
+const PasswordPage = async () => {
+  const session = await verifySession()
+  return <CredentialsPanel profileId={session.userId} isAdmin={false} />
 }
 
-export default PasswordPage
+export default PasswordPage