Add generate invlice server action

2 files changed, 22 insertions, 0 deletions

diff --git a/next.config.ts b/next.config.ts
index e9ffa30..5dd3660 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -2,6 +2,7 @@ import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
   /* config options here */
+  serverExternalPackages: ["pdfkit"],
 };
 
 export default nextConfig;
diff --git a/src/lib/generate.ts b/src/lib/generate.ts
new file mode 100644
index 0000000..4787f56
--- /dev/null
+++ b/src/lib/generate.ts
@@ -0,0 +1,21 @@
+"use server";
+
+import { Invoice } from "@/models/invoice";
+import PDFDocument from "pdfkit";
+import blobStream from "blob-stream";
+
+export async function generateInvoice(invoice: Invoice): Promise<Blob> {
+  const doc = new PDFDocument();
+  const stream = doc.pipe(blobStream());
+
+  doc.text("Invoice from " + invoice.from);
+
+  doc.end();
+  return new Promise((resolve, reject) => {
+    stream.on("finish", () => {
+      const blob = stream.toBlob();
+      resolve(blob);
+    });
+    stream.on("error", reject);
+  });
+}