feat: document authoring

packages/lib/server-only/field/sign-field-with-token.ts

@@ -0,0 +1,89 @@
+'use server';
+
+import { DateTime } from 'luxon';
+
+import { prisma } from '@documenso/prisma';
+import { DocumentStatus, FieldType, SigningStatus } from '@documenso/prisma/client';
+
+export type SignFieldWithTokenOptions = {
+  token: string;
+  fieldId: number;
+  value: string;
+  isBase64?: boolean;
+};
+
+export const signFieldWithToken = async ({
+  token,
+  fieldId,
+  value,
+  isBase64,
+}: SignFieldWithTokenOptions) => {
+  const field = await prisma.field.findFirstOrThrow({
+    where: {
+      id: fieldId,
+      Recipient: {
+        token,
+      },
+    },
+    include: {
+      Document: true,
+      Recipient: true,
+    },
+  });
+
+  const { Document: document, Recipient: recipient } = field;
+
+  if (document.status === DocumentStatus.COMPLETED) {
+    throw new Error(`Document ${document.id} has already been completed`);
+  }
+
+  if (recipient?.signingStatus === SigningStatus.SIGNED) {
+    throw new Error(`Recipient ${recipient.id} has already signed`);
+  }
+
+  if (field.inserted) {
+    throw new Error(`Field ${fieldId} has already been inserted`);
+  }
+
+  // Unreachable code based on the above query but we need to satisfy TypeScript
+  if (field.recipientId === null) {
+    throw new Error(`Field ${fieldId} has no recipientId`);
+  }
+
+  const isSignatureField =
+    field.type === FieldType.SIGNATURE || field.type === FieldType.FREE_SIGNATURE;
+
+  let customText = !isSignatureField ? value : undefined;
+  const signatureImageAsBase64 = isSignatureField && isBase64 ? value : undefined;
+  const typedSignature = isSignatureField && !isBase64 ? value : undefined;
+
+  if (field.type === FieldType.DATE) {
+    customText = DateTime.now().toFormat('yyyy-MM-dd hh:mm a');
+  }
+
+  await prisma.field.update({
+    where: {
+      id: field.id,
+    },
+    data: {
+      customText,
+      inserted: true,
+      Signature: isSignatureField
+        ? {
+            upsert: {
+              create: {
+                recipientId: field.recipientId,
+                signatureImageAsBase64,
+                typedSignature,
+              },
+              update: {
+                recipientId: field.recipientId,
+                signatureImageAsBase64,
+                typedSignature,
+              },
+            },
+          }
+        : undefined,
+    },
+  });
+};