Trying this...

src/pages/api/invoices/[id]/generate.ts

@@ -0,0 +1,104 @@
+import type { APIRoute } from "astro";
+import { db } from "../../../../db";
+import {
+  invoices,
+  invoiceItems,
+  clients,
+  organizations,
+  members,
+} from "../../../../db/schema";
+import { eq, and } from "drizzle-orm";
+import { renderToStream } from "@ceereals/vue-pdf";
+import { createInvoiceDocument } from "../../../../pdf/generateInvoicePDF";
+
+export const GET: APIRoute = async ({ params, locals }) => {
+  try {
+    const { id } = params;
+    const user = locals.user;
+
+    if (!user || !id) {
+      return new Response("Unauthorized", { status: 401 });
+    }
+
+    // Fetch invoice with related data
+    const invoiceResult = await db
+      .select({
+        invoice: invoices,
+        client: clients,
+        organization: organizations,
+      })
+      .from(invoices)
+      .leftJoin(clients, eq(invoices.clientId, clients.id))
+      .innerJoin(organizations, eq(invoices.organizationId, organizations.id))
+      .where(eq(invoices.id, id))
+      .get();
+
+    if (!invoiceResult) {
+      return new Response("Invoice not found", { status: 404 });
+    }
+
+    const { invoice, client, organization } = invoiceResult;
+
+    // Verify access
+    const membership = await db
+      .select()
+      .from(members)
+      .where(
+        and(
+          eq(members.userId, user.id),
+          eq(members.organizationId, invoice.organizationId),
+        ),
+      )
+      .get();
+
+    if (!membership) {
+      return new Response("Forbidden", { status: 403 });
+    }
+
+    // Fetch items
+    const items = await db
+      .select()
+      .from(invoiceItems)
+      .where(eq(invoiceItems.invoiceId, invoice.id))
+      .all();
+
+    if (!client) {
+      return new Response("Client not found", { status: 404 });
+    }
+
+    // Generate PDF using Vue PDF
+    // Suppress verbose logging from PDF renderer
+    const originalConsoleLog = console.log;
+    console.log = () => {};
+
+    try {
+      const pdfDocument = createInvoiceDocument({
+        invoice,
+        items,
+        client,
+        organization,
+      });
+
+      const stream = await renderToStream(pdfDocument);
+
+      // Restore console.log
+      console.log = originalConsoleLog;
+
+      const filename = `${invoice.type}_${invoice.number.replace(/[^a-zA-Z0-9]/g, "_")}.pdf`;
+
+      return new Response(stream as any, {
+        headers: {
+          "Content-Type": "application/pdf",
+          "Content-Disposition": `attachment; filename="${filename}"`,
+        },
+      });
+    } catch (pdfError) {
+      // Restore console.log on error
+      console.log = originalConsoleLog;
+      throw pdfError;
+    }
+  } catch (error) {
+    console.error("Error generating PDF:", error);
+    return new Response("Error generating PDF", { status: 500 });
+  }
+};