feat: add document distribution setting (#1437)

Add a document distribution setting which will allow us to further
configure how recipients currently receive documents.

packages/lib/types/document-email.ts

@@ -0,0 +1,52 @@
+import { z } from 'zod';
+
+import type { DocumentMeta } from '@documenso/prisma/client';
+import { DocumentDistributionMethod } from '@documenso/prisma/client';
+
+export enum DocumentEmailEvents {
+  RecipientSigningRequest = 'recipientSigningRequest',
+  RecipientRemoved = 'recipientRemoved',
+  DocumentPending = 'documentPending',
+  DocumentCompleted = 'documentCompleted',
+  DocumentDeleted = 'documentDeleted',
+}
+
+export const ZDocumentEmailSettingsSchema = z
+  .object({
+    recipientSigningRequest: z.boolean().default(true),
+    recipientRemoved: z.boolean().default(true),
+    documentPending: z.boolean().default(true),
+    documentCompleted: z.boolean().default(true),
+    documentDeleted: z.boolean().default(true),
+  })
+  .strip()
+  .catch(() => ({
+    recipientSigningRequest: true,
+    recipientRemoved: true,
+    documentPending: true,
+    documentCompleted: true,
+    documentDeleted: true,
+  }));
+
+export type TDocumentEmailSettings = z.infer<typeof ZDocumentEmailSettingsSchema>;
+
+export const extractDerivedDocumentEmailSettings = (
+  documentMeta?: DocumentMeta | null,
+): TDocumentEmailSettings => {
+  const emailSettings = ZDocumentEmailSettingsSchema.parse(documentMeta?.emailSettings ?? {});
+
+  if (
+    !documentMeta?.distributionMethod ||
+    documentMeta?.distributionMethod === DocumentDistributionMethod.EMAIL
+  ) {
+    return emailSettings;
+  }
+
+  return {
+    recipientSigningRequest: false,
+    recipientRemoved: false,
+    documentPending: false,
+    documentCompleted: false,
+    documentDeleted: false,
+  };
+};