AddFirstBookingDiscount

src/modules/businesses/businesses.service.ts

@@ -162,6 +162,38 @@ export class BusinessesService {
     }
 
     Object.assign(business, payload);
+
+    if (business.promoDiscountEnabled) {
+      if (
+        !business.promoDiscountPercent ||
+        business.promoDiscountPercent < 1 ||
+        business.promoDiscountPercent > 100
+      ) {
+        throw new BadRequestException(
+          'promoDiscountPercent must be between 1 and 100 when discount is enabled',
+        );
+      }
+      const title = business.promoDiscountTitle?.trim();
+      if (!title) {
+        throw new BadRequestException(
+          'promoDiscountTitle is required when discount is enabled',
+        );
+      }
+      business.promoDiscountTitle = title;
+      if (
+        business.promoDiscountMode !== 'first_booking' &&
+        business.promoDiscountMode !== 'always'
+      ) {
+        business.promoDiscountMode = 'first_booking';
+      }
+      const code = business.promoDiscountCode?.trim();
+      if (!code) {
+        business.promoDiscountCode = `NEW${business.promoDiscountPercent}`;
+      } else {
+        business.promoDiscountCode = code.toUpperCase();
+      }
+    }
+
     const saved = await this.repo.save(business);
     return this.ensureOwnerFromContactPhone(saved);
   }