feat(medusa-react,medusa,types,dashboard): added empty state + table for promotions list page (#6827)

what:

- adds empty state for promotions list page
- lists all promotions with pagination

<img width="1663" alt="Screenshot 2024-03-26 at 14 19 27" src="https://github.com/medusajs/medusa/assets/5105988/ed0d5c65-d003-40f5-b899-540970d892f5">


<img width="1664" alt="Screenshot 2024-03-27 at 20 46 17" src="https://github.com/medusajs/medusa/assets/5105988/4aa40f09-fe3f-4f34-af7a-f5c183254c76">

packages/medusa/src/api-v2/admin/index.ts

@@ -0,0 +1 @@
+export * from "./promotions"

packages/medusa/src/api-v2/admin/promotions/index.ts

@@ -0,0 +1,2 @@
+export * from "./types"
+export * from "./validators"

packages/medusa/src/api-v2/admin/promotions/route.ts

@@ -1,12 +1,11 @@
+import { createPromotionsWorkflow } from "@medusajs/core-flows"
+import { ModuleRegistrationName } from "@medusajs/modules-sdk"
 import { CreatePromotionDTO, IPromotionModuleService } from "@medusajs/types"
 import {
   AuthenticatedMedusaRequest,
   MedusaResponse,
 } from "../../../types/routing"
 
-import { createPromotionsWorkflow } from "@medusajs/core-flows"
-import { ModuleRegistrationName } from "@medusajs/modules-sdk"
-
 export const GET = async (
   req: AuthenticatedMedusaRequest,
   res: MedusaResponse

packages/medusa/src/api-v2/admin/promotions/types.ts

@@ -0,0 +1,5 @@
+import { PaginatedResponse, PromotionDTO } from "@medusajs/types"
+
+export type AdminPromotionsListRes = PaginatedResponse<{
+  promotions: PromotionDTO[]
+}>

packages/medusa/src/api-v2/admin/promotions/validators.ts

@@ -20,7 +20,11 @@ import {
   ValidateIf,
   ValidateNested,
 } from "class-validator"
-import { FindParams, extendedFindParamsMixin } from "../../../types/common"
+import {
+  DateComparisonOperator,
+  FindParams,
+  extendedFindParamsMixin,
+} from "../../../types/common"
 import { XorConstraint } from "../../../types/validators/xor"
 import { AdminPostCampaignsReq } from "../campaigns/validators"
 
@@ -33,6 +37,29 @@ export class AdminGetPromotionsParams extends extendedFindParamsMixin({
   @IsString()
   @IsOptional()
   code?: string
+
+  /**
+   * Search terms to search promotions' code fields.
+   */
+  @IsString()
+  @IsOptional()
+  q?: string
+
+  /**
+   * Date filters to apply on the promotions' `created_at` date.
+   */
+  @IsOptional()
+  @ValidateNested()
+  @Type(() => DateComparisonOperator)
+  created_at?: DateComparisonOperator
+
+  /**
+   * Date filters to apply on the promotions' `updated_at` date.
+   */
+  @IsOptional()
+  @ValidateNested()
+  @Type(() => DateComparisonOperator)
+  updated_at?: DateComparisonOperator
 }
 
 export class AdminPostPromotionsReq {