feat(offers): generate Angebot/Offer PDFs for draft orders

app/routes/api.orders.$orderId.invoice.tsx

@@ -15,15 +15,17 @@ import { sendInvoiceEmail } from "../services/invoice/email.server";
 export const loader = async ({ request, params }: LoaderFunctionArgs) => {
   const { session, cors } = await authenticate.admin(request);
   const orderId = requireOrderId(params);
+  const url = new URL(request.url);
+  const kind = (url.searchParams.get("kind") === "offer" ? "offer" : "invoice") as "invoice" | "offer";
   const orderGid = orderId.startsWith("gid://")
     ? orderId
-    : `gid://shopify/Order/${orderId}`;
+    : `gid://shopify/${kind === "offer" ? "DraftOrder" : "Order"}/${orderId}`;
 
   const invoices = await db.invoice.findMany({
     where: { shopDomain: session.shop, orderId: orderGid },
     orderBy: [{ issuedAt: "desc" }],
   });
-  const latest = invoices.find((i) => i.kind === "invoice" && !i.cancelledAt);
+  const latest = invoices.find((i) => i.kind === kind && !i.cancelledAt);
 
   return cors(
     Response.json({
@@ -41,15 +43,18 @@ export const action = async ({ request, params }: ActionFunctionArgs) => {
   const orderId = requireOrderId(params);
   const url = new URL(request.url);
   let op = url.searchParams.get("action");
-  if (!op) {
+  let kindParam = url.searchParams.get("kind");
-    // Also accept the action from the form body (used by the in-app fetcher).
+  if (!op || !kindParam) {
+    // Also accept the action / kind from the form body (used by the in-app fetcher).
     const ct = request.headers.get("content-type") || "";
     if (ct.includes("application/x-www-form-urlencoded") || ct.includes("multipart/form-data")) {
       const form = await request.formData();
-      op = (form.get("action") as string | null) ?? null;
+      op = op ?? ((form.get("action") as string | null) ?? null);
+      kindParam = kindParam ?? ((form.get("kind") as string | null) ?? null);
     }
   }
   op = op ?? "generate";
+  const kind: "invoice" | "offer" = kindParam === "offer" ? "offer" : "invoice";
 
   try {
     if (op === "cancel_reissue") {
@@ -109,8 +114,9 @@ export const action = async ({ request, params }: ActionFunctionArgs) => {
       shopDomain: session.shop,
       admin,
       orderId,
+      kind,
     });
-    return cors(Response.json({ ok: true, op: "generate", ...result }));
+    return cors(Response.json({ ok: true, op: kind === "offer" ? "generate_offer" : "generate", ...result }));
   } catch (err) {
     const message = err instanceof Error ? err.message : String(err);
     console.error("invoice action failed:", err);

app/routes/app.invoices.tsx

@@ -20,6 +20,20 @@ interface RecentOrder {
   pdfUrl?: string;
 }
 
+interface DraftOrderRow {
+  id: string; // gid
+  numericId: string;
+  name: string;
+  createdAt: string;
+  totalPrice: string;
+  currency: string;
+  customerName: string;
+  hasOffer: boolean;
+  offerNumber?: string;
+  offerVersion?: number;
+  pdfUrl?: string;
+}
+
 const RECENT_ORDERS_QUERY = `#graphql
   query RecentOrders($first: Int!) {
     orders(first: $first, sortKey: CREATED_AT, reverse: true) {
@@ -35,6 +49,20 @@ const RECENT_ORDERS_QUERY = `#graphql
   }
 `;
 
+const RECENT_DRAFTS_QUERY = `#graphql
+  query RecentDrafts($first: Int!) {
+    draftOrders(first: $first, sortKey: UPDATED_AT, reverse: true, query: "status:open") {
+      nodes {
+        id
+        name
+        createdAt
+        totalPriceSet { shopMoney { amount currencyCode } }
+        customer { firstName lastName }
+      }
+    }
+  }
+`;
+
 type Filter = "all" | "missing" | "with";
 
 export const loader = async ({ request }: LoaderFunctionArgs) => {
@@ -47,6 +75,7 @@ export const loader = async ({ request }: LoaderFunctionArgs) => {
     : "all";
 
   let orders: RecentOrder[] = [];
+  let drafts: DraftOrderRow[] = [];
   try {
     const res = await admin.graphql(RECENT_ORDERS_QUERY, { variables: { first: 50 } });
     const json = (await res.json()) as {
@@ -103,6 +132,56 @@ export const loader = async ({ request }: LoaderFunctionArgs) => {
     console.warn("Failed to load recent orders:", err);
   }
 
+  try {
+    const res = await admin.graphql(RECENT_DRAFTS_QUERY, { variables: { first: 50 } });
+    const json = (await res.json()) as {
+      data?: {
+        draftOrders?: {
+          nodes?: Array<{
+            id: string;
+            name: string;
+            createdAt: string;
+            totalPriceSet?: { shopMoney: { amount: string; currencyCode: string } };
+            customer?: { firstName: string | null; lastName: string | null } | null;
+          }>;
+        };
+      };
+    };
+    const nodes = json.data?.draftOrders?.nodes ?? [];
+    const draftIds = nodes.map((n) => n.id);
+
+    const offers = await db.invoice.findMany({
+      where: { shopDomain: session.shop, orderId: { in: draftIds }, kind: "offer" },
+      orderBy: [{ version: "desc" }, { createdAt: "desc" }],
+    });
+    const latestByDraft = new Map<string, (typeof offers)[number]>();
+    for (const off of offers) {
+      if (!latestByDraft.has(off.orderId)) latestByDraft.set(off.orderId, off);
+    }
+
+    drafts = nodes.map((n) => {
+      const off = latestByDraft.get(n.id);
+      const customer = n.customer
+        ? [n.customer.firstName, n.customer.lastName].filter(Boolean).join(" ").trim()
+        : "";
+      return {
+        id: n.id,
+        numericId: n.id.replace(/^.*\//, ""),
+        name: n.name,
+        createdAt: n.createdAt,
+        totalPrice: n.totalPriceSet?.shopMoney.amount ?? "",
+        currency: n.totalPriceSet?.shopMoney.currencyCode ?? "EUR",
+        customerName: customer || "Guest",
+        hasOffer: !!off && !off.cancelledAt,
+        offerNumber: off?.invoiceNumber,
+        offerVersion: off?.version,
+        pdfUrl: off?.pdfUrl,
+      };
+    });
+  } catch (err) {
+    console.warn("Failed to load draft orders:", err);
+  }
+
   const allCount = orders.length;
   const withCount = orders.filter((o) => o.hasInvoice).length;
   const missingCount = allCount - withCount;
@@ -112,6 +191,7 @@ export const loader = async ({ request }: LoaderFunctionArgs) => {
 
   return {
     orders,
+    drafts,
     filter,
     counts: { all: allCount, with: withCount, missing: missingCount },
   };
@@ -134,7 +214,7 @@ function formatMoney(amount: string, currency: string): string {
 }
 
 export default function InvoicesPage() {
-  const { orders, filter, counts } = useLoaderData<typeof loader>();
+  const { orders, drafts, filter, counts } = useLoaderData<typeof loader>();
   const navigation = useNavigation();
   const isLoading = navigation.state !== "idle";
 
@@ -195,6 +275,40 @@ export default function InvoicesPage() {
         )}
       </s-section>
 
+      <s-section heading="Draft orders (offers)">
+        <s-stack direction="block" gap="base">
+          <s-paragraph>
+            Generate a PDF offer (Angebot) for any open draft order. The
+            offer's number is the draft order name (e.g. <em>D1</em>).
+          </s-paragraph>
+        </s-stack>
+
+        {drafts.length === 0 ? (
+          <s-stack direction="block" gap="base" alignItems="center">
+            <s-text type="strong">No open draft orders</s-text>
+            <s-paragraph tone="neutral">
+              Create a draft order in Shopify and refresh this page.
+            </s-paragraph>
+          </s-stack>
+        ) : (
+          <s-table>
+            <s-table-header-row>
+              <s-table-header listSlot="primary">Draft</s-table-header>
+              <s-table-header>Customer</s-table-header>
+              <s-table-header>Date</s-table-header>
+              <s-table-header format="numeric">Total</s-table-header>
+              <s-table-header listSlot="secondary">Offer</s-table-header>
+              <s-table-header listSlot="labeled">Actions</s-table-header>
+            </s-table-header-row>
+            <s-table-body>
+              {drafts.map((d) => (
+                <DraftRow key={d.id} draft={d} />
+              ))}
+            </s-table-body>
+          </s-table>
+        )}
+      </s-section>
+
       <s-section heading="About this page">
         <s-stack direction="block" gap="small">
           <s-paragraph>
@@ -319,3 +433,61 @@ function OrderRow({ order }: { order: RecentOrder }) {
     </s-table-row>
   );
 }
+
+function DraftRow({ draft }: { draft: DraftOrderRow }) {
+  const fetcher = useFetcher<{ ok: boolean; error?: string }>();
+  const isBusy = fetcher.state !== "idle";
+  const buttonLabel = draft.hasOffer ? "Regenerate offer" : "Generate offer";
+
+  return (
+    <s-table-row>
+      <s-table-cell>
+        <s-stack direction="block" gap="none">
+          <s-link href={`shopify://admin/draft_orders/${draft.numericId}`}>
+            <s-text type="strong">{draft.name}</s-text>
+          </s-link>
+        </s-stack>
+      </s-table-cell>
+      <s-table-cell>{draft.customerName}</s-table-cell>
+      <s-table-cell>{dateFmt.format(new Date(draft.createdAt))}</s-table-cell>
+      <s-table-cell>{formatMoney(draft.totalPrice, draft.currency)}</s-table-cell>
+      <s-table-cell>
+        {draft.hasOffer ? (
+          <s-stack direction="block" gap="none">
+            <s-stack direction="inline" gap="small" alignItems="center">
+              <s-text type="strong">{draft.offerNumber}</s-text>
+              <s-badge tone="info">Issued</s-badge>
+              {draft.offerVersion && draft.offerVersion > 1 ? (
+                <s-text tone="neutral">v{draft.offerVersion}</s-text>
+              ) : null}
+            </s-stack>
+            {fetcher.data?.error ? (
+              <s-text tone="critical">{fetcher.data.error}</s-text>
+            ) : null}
+          </s-stack>
+        ) : (
+          <s-text tone="neutral">—</s-text>
+        )}
+      </s-table-cell>
+      <s-table-cell>
+        <s-stack direction="inline" gap="small" justifyContent="end" alignItems="center">
+          {draft.pdfUrl ? (
+            <s-link href={draft.pdfUrl} target="_blank">
+              PDF
+            </s-link>
+          ) : null}
+          <fetcher.Form method="post" action={`/api/orders/${draft.numericId}/invoice`}>
+            <input type="hidden" name="kind" value="offer" />
+            <s-button
+              type="submit"
+              disabled={isBusy}
+              variant={draft.hasOffer ? "secondary" : "primary"}
+            >
+              {isBusy ? "Working…" : buttonLabel}
+            </s-button>
+          </fetcher.Form>
+        </s-stack>
+      </s-table-cell>
+    </s-table-row>
+  );
+}

app/services/invoice/composeInvoice.ts

@@ -28,6 +28,14 @@ interface ComposeArgs {
   storno?: { cancelsNumber: string };
   /** Optional override for invoice/delivery date (defaults to order date). */
   issueDate?: Date;
+  /**
+   * When true, render as an Angebot/Offer instead of an invoice:
+   * - `kind = "offer"`
+   * - no payment-due date (the dueDate field is repurposed by the renderer
+   *   as the offer's validity expiry).
+   * - GiroCode and payment-terms text are suppressed.
+   */
+  offer?: boolean;
 }
 
 export function composeInvoice({
@@ -37,6 +45,7 @@ export function composeInvoice({
   forceLanguage,
   storno,
   issueDate,
+  offer,
 }: ComposeArgs): InvoiceViewModel {
   const language = forceLanguage
     ?? pickLanguage(order.customer?.locale ?? settings.defaultLanguage);
@@ -51,9 +60,13 @@ export function composeInvoice({
 
   const invoiceDate = issueDate ?? new Date(order.processedAt ?? order.createdAt);
   const deliveryDate = invoiceDate;
-  const dueDate = !storno && settings.paymentTermDays > 0
+  // For offers we treat `dueDate` as the offer's validity expiry (default 30
-    ? addDays(invoiceDate, settings.paymentTermDays)
+  // days from issue). The PDF renderer renders a different label.
-    : undefined;
+  const dueDate = offer
+    ? addDays(invoiceDate, 30)
+    : !storno && settings.paymentTermDays > 0
+      ? addDays(invoiceDate, settings.paymentTermDays)
+      : undefined;
 
   const paid = (order.displayFinancialStatus || "").toUpperCase() === "PAID";
 
@@ -80,7 +93,7 @@ export function composeInvoice({
   return {
     language,
     currency: order.currencyCode,
-    kind: storno ? "storno" : "invoice",
+    kind: storno ? "storno" : offer ? "offer" : "invoice",
     number: invoiceNumber,
     cancelsNumber: storno?.cancelsNumber,
     invoiceDate,

app/services/invoice/generateInvoice.server.tsx

@@ -6,6 +6,7 @@ import db from "../../db.server";
 import { composeInvoice } from "./composeInvoice";
 import { buildGiroCodeDataUrl } from "./girocode";
 import { loadOrderForInvoice } from "./loadOrderForInvoice.server";
+import { loadDraftOrderForOffer } from "./loadDraftOrderForOffer.server";
 import { getLogoDataUrl } from "./logoCache.server";
 import { attachLineItemImages } from "./productImageCache.server";
 import { allocateInvoiceNumber } from "./numbering.server";
@@ -19,6 +20,15 @@ export interface GenerateInvoiceArgs {
   orderId: string;
   /** When true, bypass the "sent invoice is locked" rule and regenerate in place. */
   forceRegenerate?: boolean;
+  /**
+   * Document kind. Default "invoice". When "offer":
+   * - `orderId` is interpreted as a DraftOrder id (numeric or GID).
+   * - The number is the draft order's name (e.g. "D1") rather than an
+   *   allocated invoice number.
+   * - GiroCode is suppressed and the dueDate is repurposed as the offer's
+   *   validity expiry.
+   */
+  kind?: "invoice" | "offer";
 }
 
 export interface GeneratedInvoice {
@@ -44,7 +54,8 @@ export async function generateInvoice(
   args: GenerateInvoiceArgs,
 ): Promise<GeneratedInvoice> {
   const { shopDomain, admin } = args;
-  const orderGid = toOrderGid(args.orderId);
+  const kind = args.kind ?? "invoice";
+  const orderGid = kind === "offer" ? toDraftOrderGid(args.orderId) : toOrderGid(args.orderId);
 
   const settings = await db.shopSettings.upsert({
     where: { shopDomain },
@@ -52,15 +63,17 @@ export async function generateInvoice(
     create: { shopDomain },
   });
 
-  const order = await loadOrderForInvoice(admin, orderGid);
+  const order = kind === "offer"
+    ? await loadDraftOrderForOffer(admin, orderGid)
+    : await loadOrderForInvoice(admin, orderGid);
 
-  // Find latest existing invoice (excluding storno) for this order.
+  // Find latest existing document of this kind for this (draft) order.
   const latest = await db.invoice.findFirst({
-    where: { shopDomain, orderId: orderGid, kind: "invoice", cancelledAt: null },
+    where: { shopDomain, orderId: orderGid, kind, cancelledAt: null },
     orderBy: [{ version: "desc" }, { createdAt: "desc" }],
   });
 
-  if (latest && latest.sentAt && !args.forceRegenerate) {
+  if (kind === "invoice" && latest && latest.sentAt && !args.forceRegenerate) {
     throw new Error(
       `Invoice ${latest.invoiceNumber} has already been sent. Use cancel-and-reissue to correct it.`,
     );
@@ -68,10 +81,12 @@ export async function generateInvoice(
 
   const invoiceNumber = latest
     ? latest.invoiceNumber
-    : await allocateInvoiceNumber(settings, order.orderNumber);
+    : kind === "offer"
+      ? order.name // e.g. "D1" — Shopify's draft order name is the offer number.
+      : await allocateInvoiceNumber(settings, order.orderNumber);
 
   // Compose view model and render PDF.
-  const viewModel = composeInvoice({ order, settings, invoiceNumber });
+  const viewModel = composeInvoice({ order, settings, invoiceNumber, offer: kind === "offer" });
 
   // Logo (cached).
   const logoDataUrl = await getLogoDataUrl(shopDomain, settings.logoUrl);
@@ -80,8 +95,9 @@ export async function generateInvoice(
   // Product images for each line (best-effort, parallel, in-process cache).
   await attachLineItemImages(viewModel.lines);
 
-  // GiroCode (only for unpaid + IBAN configured + enabled).
+  // GiroCode (only for invoices that are unpaid + IBAN configured + enabled).
   if (
+    kind === "invoice" &&
     settings.giroCodeEnabled &&
     settings.iban &&
     !viewModel.paid &&
@@ -101,12 +117,13 @@ export async function generateInvoice(
 
   const pdfBuffer = await renderInvoicePdf(viewModel);
 
-  const filename = `Rechnung-${sanitiseForFilename(invoiceNumber)}.pdf`;
+  const filenamePrefix = kind === "offer" ? "Angebot" : "Rechnung";
+  const filename = `${filenamePrefix}-${sanitiseForFilename(invoiceNumber)}.pdf`;
 
   const upload = await uploadPdfToShopifyFiles(admin, {
     bytes: pdfBuffer,
     filename,
-    alt: `Invoice ${invoiceNumber}`,
+    alt: kind === "offer" ? `Offer ${invoiceNumber}` : `Invoice ${invoiceNumber}`,
   });
 
   const version = latest ? latest.version + 1 : 1;
@@ -141,7 +158,7 @@ export async function generateInvoice(
           orderNumber: order.orderNumber,
           invoiceNumber,
           language: viewModel.language,
-          kind: "invoice",
+          kind,
           version: 1,
           pdfFileGid: upload.fileGid,
           pdfUrl: upload.url,
@@ -152,15 +169,18 @@ export async function generateInvoice(
       });
 
   // Link the latest PDF on the order via metafields (best-effort; do not
-  // fail the whole operation if scopes are missing).
+  // fail the whole operation if scopes are missing). Skip for offers since
-  try {
+  // draft orders don't accept the same metafields.
-    await writeOrderMetafields(admin, orderGid, {
+  if (kind === "invoice") {
-      pdfUrl: upload.url,
+    try {
-      number: invoiceNumber,
+      await writeOrderMetafields(admin, orderGid, {
-      version: invoice.version,
+        pdfUrl: upload.url,
-    });
+        number: invoiceNumber,
-  } catch (err) {
+        version: invoice.version,
-    console.warn("Order metafield write failed:", err);
+      });
+    } catch (err) {
+      console.warn("Order metafield write failed:", err);
+    }
   }
 
   return {
@@ -179,6 +199,12 @@ export function toOrderGid(input: string): string {
   return `gid://shopify/Order/${input}`;
 }
 
+/** Same idea for DraftOrder ids. */
+export function toDraftOrderGid(input: string): string {
+  if (input.startsWith("gid://")) return input;
+  return `gid://shopify/DraftOrder/${input}`;
+}
+
 function sanitiseForFilename(s: string): string {
   return s.replace(/[^A-Za-z0-9._-]/g, "_");
 }

app/services/invoice/i18n.ts

@@ -5,6 +5,10 @@ export type InvoiceLanguage = "de" | "en";
 export interface InvoiceStrings {
   invoice: string;
   stornoInvoice: string;
+  offer: string;
+  offerNumber: string;
+  offerDate: string;
+  offerValidUntil: (until: string) => string;
   stornoReference: (originalNumber: string) => string;
   invoiceNumber: string;
   invoiceDate: string;
@@ -53,6 +57,10 @@ export interface InvoiceStrings {
 const de: InvoiceStrings = {
   invoice: "Rechnung",
   stornoInvoice: "Stornorechnung",
+  offer: "Angebot",
+  offerNumber: "Angebots-Nr.",
+  offerDate: "Angebotsdatum",
+  offerValidUntil: (d) => `Dieses Angebot ist gültig bis ${d}.`,
   stornoReference: (n) => `Storno zu Rechnung Nr. ${n}`,
   invoiceNumber: "Rechnungs-Nr.",
   invoiceDate: "Rechnungsdatum",
@@ -106,6 +114,10 @@ const de: InvoiceStrings = {
 const en: InvoiceStrings = {
   invoice: "Invoice",
   stornoInvoice: "Cancellation invoice",
+  offer: "Offer",
+  offerNumber: "Offer no.",
+  offerDate: "Offer date",
+  offerValidUntil: (d) => `This offer is valid until ${d}.`,
   stornoReference: (n) => `Cancels invoice no. ${n}`,
   invoiceNumber: "Invoice no.",
   invoiceDate: "Invoice date",

app/services/invoice/loadDraftOrderForOffer.server.ts

@@ -0,0 +1,184 @@
+import type { AdminApiContext } from "@shopify/shopify-app-react-router/server";
+
+import type {
+  RawAddress,
+  RawLineItem,
+  RawMoney,
+  RawOrderForInvoice,
+  RawTaxLine,
+} from "./loadOrderForInvoice.server";
+
+/**
+ * Loads a Shopify DraftOrder and adapts it to the same `RawOrderForInvoice`
+ * shape used for completed orders, so the rest of the pipeline (composer,
+ * PDF, etc.) doesn't need to know whether it's rendering an invoice or an
+ * offer.
+ *
+ * Drafts have no `processedAt` (we use createdAt) and no
+ * `displayFinancialStatus` (we treat them as not paid).
+ */
+const QUERY = `#graphql
+  query DraftOrderForOffer($id: ID!) {
+    draftOrder(id: $id) {
+      id
+      name
+      createdAt
+      currencyCode
+      taxesIncluded
+      customer {
+        firstName
+        lastName
+        email
+        locale
+      }
+      billingAddress {
+        name
+        company
+        address1
+        address2
+        zip
+        city
+        province
+        countryCode: countryCodeV2
+      }
+      shippingAddress {
+        name
+        company
+        address1
+        address2
+        zip
+        city
+        province
+        countryCode: countryCodeV2
+      }
+      subtotalPriceSet { shopMoney { amount currencyCode } }
+      totalTaxSet { shopMoney { amount currencyCode } }
+      totalPriceSet { shopMoney { amount currencyCode } }
+      taxLines {
+        title
+        rate
+        ratePercentage
+        priceSet { shopMoney { amount currencyCode } }
+      }
+      lineItems(first: 250) {
+        edges {
+          node {
+            title
+            sku
+            quantity
+            originalUnitPriceSet { shopMoney { amount currencyCode } }
+            image { url altText }
+            taxLines {
+              title
+              rate
+              ratePercentage
+              priceSet { shopMoney { amount currencyCode } }
+            }
+          }
+        }
+      }
+      purchasingEntity {
+        ... on PurchasingCompany {
+          company { name }
+          location {
+            taxRegistrationId
+            billingAddress {
+              address1
+              address2
+              zip
+              city
+              countryCode
+            }
+          }
+        }
+      }
+    }
+  }
+`;
+
+interface RawAdminResponse {
+  data?: {
+    draftOrder?: {
+      id: string;
+      name: string;
+      createdAt: string;
+      currencyCode: string;
+      taxesIncluded: boolean;
+      customer: {
+        firstName: string | null;
+        lastName: string | null;
+        email: string | null;
+        locale: string | null;
+      } | null;
+      billingAddress: RawAddress | null;
+      shippingAddress: RawAddress | null;
+      subtotalPriceSet: { shopMoney: RawMoney } | null;
+      totalTaxSet: { shopMoney: RawMoney } | null;
+      totalPriceSet: { shopMoney: RawMoney } | null;
+      taxLines: RawTaxLine[];
+      lineItems: { edges: { node: RawLineItem & { image?: { url: string | null } | null } }[] };
+      purchasingEntity: {
+        company?: { name: string } | null;
+        location?: {
+          taxRegistrationId: string | null;
+          billingAddress: RawAddress | null;
+        } | null;
+      } | null;
+    } | null;
+  };
+}
+
+export async function loadDraftOrderForOffer(
+  admin: AdminApiContext,
+  draftOrderGid: string,
+): Promise<RawOrderForInvoice> {
+  const response = await admin.graphql(QUERY, { variables: { id: draftOrderGid } });
+  const json = (await response.json()) as RawAdminResponse;
+  const draft = json.data?.draftOrder;
+  if (!draft) {
+    throw new Error(`Draft order ${draftOrderGid} not found.`);
+  }
+
+  const purchasingCompany = draft.purchasingEntity?.company
+    ? {
+        name: draft.purchasingEntity.company.name,
+        vatId: draft.purchasingEntity.location?.taxRegistrationId ?? null,
+        address: draft.purchasingEntity.location?.billingAddress ?? null,
+      }
+    : null;
+
+  // Drafts don't have a numeric "order number" — use a hash of the GID as a
+  // numeric proxy for the invoice-counter signature (not actually used when
+  // generating offers, but kept non-zero to satisfy downstream code).
+  const orderNumber = parseInt(draft.id.replace(/[^0-9]/g, "").slice(-9), 10) || 0;
+
+  return {
+    id: draft.id,
+    name: draft.name,
+    orderNumber,
+    createdAt: draft.createdAt,
+    processedAt: null,
+    currencyCode: draft.currencyCode,
+    displayFinancialStatus: null,
+    taxesIncluded: draft.taxesIncluded,
+    customer: draft.customer,
+    billingAddress: draft.billingAddress,
+    shippingAddress: draft.shippingAddress,
+    subtotalSet: draft.subtotalPriceSet,
+    totalTaxSet: draft.totalTaxSet,
+    totalPriceSet: draft.totalPriceSet,
+    taxLines: draft.taxLines || [],
+    lineItems: (draft.lineItems?.edges || []).map((e) => {
+      const node = e.node;
+      return {
+        title: node.title,
+        sku: node.sku,
+        quantity: node.quantity,
+        originalUnitPriceSet: node.originalUnitPriceSet,
+        taxLines: node.taxLines,
+        imageUrl: node.image?.url ?? null,
+      };
+    }),
+    purchasingEntity: { company: purchasingCompany },
+  };
+}

app/services/invoice/pdf/InvoiceDocument.tsx

@@ -246,7 +246,7 @@ export function InvoiceDocument({ invoice }: DocProps) {
 
   return (
     <Document
-      title={`${t.invoice} ${invoice.number}`}
+      title={`${invoice.kind === "offer" ? t.offer : t.invoice} ${invoice.number}`}
       author={invoice.issuer.companyName}
       creator="LinumIQ Invoice"
     >
@@ -268,17 +268,19 @@ export function InvoiceDocument({ invoice }: DocProps) {
           <View style={styles.metaBlock}>
             <View style={styles.metaTable}>
               <View style={styles.metaRow}>
-                <Text style={styles.metaLabel}>{t.invoiceNumber}</Text>
+                <Text style={styles.metaLabel}>{invoice.kind === "offer" ? t.offerNumber : t.invoiceNumber}</Text>
                 <Text style={styles.invoiceNumberBig}>{invoice.number}</Text>
               </View>
               <View style={styles.metaRow}>
-                <Text style={styles.metaLabel}>{t.invoiceDate}</Text>
+                <Text style={styles.metaLabel}>{invoice.kind === "offer" ? t.offerDate : t.invoiceDate}</Text>
                 <Text style={styles.metaValue}>{formatDate(invoice.invoiceDate, invoice.language)}</Text>
               </View>
-              <View style={styles.metaRow}>
+              {invoice.kind !== "offer" && (
-                <Text style={styles.metaLabel}>{t.deliveryDate}</Text>
+                <View style={styles.metaRow}>
-                <Text style={styles.metaValue}>{formatDate(invoice.deliveryDate, invoice.language)}</Text>
+                  <Text style={styles.metaLabel}>{t.deliveryDate}</Text>
-              </View>
+                  <Text style={styles.metaValue}>{formatDate(invoice.deliveryDate, invoice.language)}</Text>
+                </View>
+              )}
               {invoice.recipientVatId ? (
                 <View style={styles.metaRow}>
                   <Text style={styles.metaLabel}>{t.customerVatId}</Text>
@@ -290,7 +292,12 @@ export function InvoiceDocument({ invoice }: DocProps) {
         </View>
 
         <Text style={styles.title}>
-          {invoice.kind === "storno" ? t.stornoInvoice : t.invoice} Nr. {invoice.number}
+          {invoice.kind === "storno"
+            ? t.stornoInvoice
+            : invoice.kind === "offer"
+              ? t.offer
+              : t.invoice}{" "}
+          Nr. {invoice.number}
         </Text>
 
         <Text style={styles.paragraph}>{t.salutationGeneric}</Text>
@@ -342,7 +349,11 @@ export function InvoiceDocument({ invoice }: DocProps) {
           </View>
         )}
 
-        {!invoice.paid && (
+        {invoice.kind === "offer" ? (
+          <Text style={[styles.paragraph, { marginTop: 16 }]}>
+            {invoice.dueDate ? t.offerValidUntil(formatDate(invoice.dueDate, invoice.language)) : null}
+          </Text>
+        ) : !invoice.paid && (
           <Text style={[styles.paragraph, { marginTop: 16 }]}>
             {invoice.dueDate
               ? t.paymentTerms(

app/services/invoice/types.ts

@@ -10,7 +10,7 @@ export interface InvoiceViewModel {
   currency: string;
 
   // Identity
-  kind: "invoice" | "storno";
+  kind: "invoice" | "storno" | "offer";
   number: string;
   /** Only set for storno: the original invoice number being cancelled. */
   cancelsNumber?: string;