feat: document authoring

packages/lib/server-only/document/seal-document.ts

@@ -0,0 +1,74 @@
+'use server';
+
+import { PDFDocument } from 'pdf-lib';
+
+import { prisma } from '@documenso/prisma';
+import { DocumentStatus, SigningStatus } from '@documenso/prisma/client';
+
+import { insertFieldInPDF } from '../pdf/insert-field-in-pdf';
+
+export type SealDocumentOptions = {
+  documentId: number;
+};
+
+export const sealDocument = async ({ documentId }: SealDocumentOptions) => {
+  'use server';
+
+  const document = await prisma.document.findFirstOrThrow({
+    where: {
+      id: documentId,
+    },
+  });
+
+  if (document.status !== DocumentStatus.COMPLETED) {
+    throw new Error(`Document ${document.id} has not been completed`);
+  }
+
+  const recipients = await prisma.recipient.findMany({
+    where: {
+      documentId: document.id,
+    },
+  });
+
+  if (recipients.some((recipient) => recipient.signingStatus !== SigningStatus.SIGNED)) {
+    throw new Error(`Document ${document.id} has unsigned recipients`);
+  }
+
+  const fields = await prisma.field.findMany({
+    where: {
+      documentId: document.id,
+    },
+    include: {
+      Signature: true,
+    },
+  });
+
+  if (fields.some((field) => !field.inserted)) {
+    throw new Error(`Document ${document.id} has unsigned fields`);
+  }
+
+  // !: Need to write the fields onto the document as a hard copy
+  const { document: pdfData } = document;
+
+  const doc = await PDFDocument.load(pdfData);
+
+  for (const field of fields) {
+    console.log('inserting field', {
+      ...field,
+      Signature: null,
+    });
+    await insertFieldInPDF(doc, field);
+  }
+
+  const pdfBytes = await doc.save();
+
+  await prisma.document.update({
+    where: {
+      id: document.id,
+      status: DocumentStatus.COMPLETED,
+    },
+    data: {
+      document: Buffer.from(pdfBytes).toString('base64'),
+    },
+  });
+};