fix: make payer email mandatory

Author: justynoh

packages/backend/src/apps/paysg/actions/create-payment-form-submission-subscription/index.ts

@@ -54,7 +54,7 @@ const action: IRawAction = {
       label: 'Payer Email',
       key: 'payer_email',
       type: 'string' as const,
-      required: false,
+      required: true,
       variables: true,
     },
     {

packages/backend/src/apps/paysg/actions/create-payment-form-submission-subscription/schema.ts

@@ -1,3 +1,4 @@
+import emailValidator from 'email-validator'
 import { z } from 'zod'
 
 import { requestSchema as createPaymentFormSubmissionRequestSchema } from '../create-payment-form-submission/schema'
@@ -9,6 +10,21 @@ export const requestSchema = createPaymentFormSubmissionRequestSchema.extend({
     .min(1, { message: 'Specify a description' })
     .max(500, { message: 'Description cannot be more than 500 characters' }),
   frequency: z.literal('monthly'),
+  payer_email: z
+    .string({ invalid_type_error: 'Empty payer email' })
+    .trim()
+    .max(255, { message: 'Payer email cannot be more than 255 characters' })
+    .transform((value, context) => {
+      if (!emailValidator.validate(value)) {
+        context.addIssue({
+          code: z.ZodIssueCode.custom,
+          message: 'Invalid payer email',
+        })
+        return z.NEVER
+      }
+
+      return value
+    }),
   payer_address: z
     .string()
     .trim()