Support variables file email attachment (#21613)

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packages/twenty-shared/src/workflow/index.ts

@@ -51,7 +51,11 @@ export { workflowLogicFunctionActionSettingsSchema } from './schemas/logic-funct
 export { workflowManualTriggerSchema } from './schemas/manual-trigger-schema';
 export { objectRecordSchema } from './schemas/object-record-schema';
 export { workflowSendEmailActionSchema } from './schemas/send-email-action-schema';
-export { workflowSendEmailActionSettingsSchema } from './schemas/send-email-action-settings-schema';
+export type { WorkflowEmailFiles } from './schemas/send-email-action-settings-schema';
+export {
+  workflowEmailFilesSchema,
+  workflowSendEmailActionSettingsSchema,
+} from './schemas/send-email-action-settings-schema';
 export { stepFilterGroupSchema } from './schemas/step-filter-group-schema';
 export { stepFilterSchema } from './schemas/step-filter-schema';
 export { workflowUpdateRecordActionSchema } from './schemas/update-record-action-schema';

packages/twenty-shared/src/workflow/schemas/send-email-action-settings-schema.ts

@@ -2,6 +2,24 @@ import { z } from 'zod';
 import { baseWorkflowActionSettingsSchema } from './base-workflow-action-settings-schema';
 import { workflowFileSchema } from './workflow-file-action-schema';
 
+export const workflowEmailFilesSchema = z
+  .array(
+    z.union([
+      workflowFileSchema,
+      z
+        .string()
+        .regex(
+          /^{{[^{}]+}}$/,
+          'Expected a workflow variable reference like {{stepId.path}}',
+        )
+        .describe('A workflow variable reference resolving to files'),
+    ]),
+  )
+  .optional()
+  .default([]);
+
+export type WorkflowEmailFiles = z.infer<typeof workflowEmailFilesSchema>;
+
 export const workflowSendEmailActionSettingsSchema =
   baseWorkflowActionSettingsSchema.extend({
     input: z.object({
@@ -13,7 +31,7 @@ export const workflowSendEmailActionSettingsSchema =
       }),
       subject: z.string().optional(),
       body: z.string().optional(),
-      files: z.array(workflowFileSchema).optional().default([]),
+      files: workflowEmailFilesSchema,
       inReplyTo: z.string().trim().optional(),
     }),
   });