feat: promotion usage limit (#13760)

* feat: promotion usage limit

* fix: update, refactor tests, parallel case

* fix: batch update, cleanup unused map

* feat: paralel campaign and promotion tests

* chore: changesets, fix i18 schema

* fix: ui tweaks

* chore: refactor

---------

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>

packages/medusa/src/api/admin/promotions/query-config.ts

@@ -4,6 +4,8 @@ export const defaultAdminPromotionFields = [
   "is_automatic",
   "is_tax_inclusive",
   "type",
+  "limit",
+  "used",
   "status",
   "created_at",
   "updated_at",

packages/medusa/src/api/admin/promotions/validators.ts

@@ -175,16 +175,35 @@ export const CreatePromotion = z
     campaign: CreateCampaign.optional(),
     application_method: AdminCreateApplicationMethod,
     rules: z.array(AdminCreatePromotionRule).optional(),
+    limit: z.number().int().min(1).nullable().optional(),
   })
   .strict()
 
 export const AdminCreatePromotion = WithAdditionalData(
   CreatePromotion,
   (schema) => {
-    return schema.refine(promoRefinement, {
-      message:
-        "Buyget promotions require at least one buy rule and quantities to be defined",
-    })
+    return schema
+      .refine(promoRefinement, {
+        message:
+          "Buyget promotions require at least one buy rule and quantities to be defined",
+      })
+      .refine(
+        (data) => {
+          // Automatic promotions cannot have a limit
+          if (
+            data.is_automatic &&
+            data.limit !== null &&
+            data.limit !== undefined
+          ) {
+            return false
+          }
+          return true
+        },
+        {
+          message: "Automatic promotions cannot have a usage limit",
+          path: ["limit"],
+        }
+      )
   }
 )
 
@@ -198,15 +217,34 @@ export const UpdatePromotion = z
     status: z.nativeEnum(PromotionStatus).optional(),
     campaign_id: z.string().nullish(),
     application_method: AdminUpdateApplicationMethod.optional(),
+    limit: z.number().int().min(1).nullable().optional(),
   })
   .strict()
 
 export const AdminUpdatePromotion = WithAdditionalData(
   UpdatePromotion,
   (schema) => {
-    return schema.refine(promoRefinement, {
-      message:
-        "Buyget promotions require at least one buy rule and quantities to be defined",
-    })
+    return schema
+      .refine(promoRefinement, {
+        message:
+          "Buyget promotions require at least one buy rule and quantities to be defined",
+      })
+      .refine(
+        (data) => {
+          // Automatic promotions cannot have a limit
+          if (
+            data.is_automatic &&
+            data.limit !== null &&
+            data.limit !== undefined
+          ) {
+            return false
+          }
+          return true
+        },
+        {
+          message: "Automatic promotions cannot have a usage limit",
+          path: ["limit"],
+        }
+      )
   }
 )