feat: persist document metadata in database for a specific user

packages/lib/server-only/document-meta/create-document-meta.ts

@@ -0,0 +1,36 @@
+'use server';
+
+import { prisma } from '@documenso/prisma';
+
+export type CreateDocumentMetaOptions = {
+  emailSubject: string;
+  emailBody: string;
+};
+
+export const createDocumentMeta = async ({
+  emailBody,
+  emailSubject,
+}: CreateDocumentMetaOptions) => {
+  const documentMeta = await prisma.documentMeta.findFirst();
+
+  if (!documentMeta) {
+    return await prisma.documentMeta.create({
+      data: {
+        customEmailBody: emailBody,
+        customEmailSubject: emailSubject,
+      },
+    });
+  }
+
+  if (emailBody && emailSubject) {
+    return await prisma.documentMeta.update({
+      where: {
+        id: documentMeta.id,
+      },
+      data: {
+        customEmailBody: emailBody,
+        customEmailSubject: emailSubject,
+      },
+    });
+  }
+};