add products service interface

server/ecommerce/spi/products.ts

@@ -0,0 +1,26 @@
+import { ProductWithoutImageDto } from 'src/utils/dtos/product.dto';
+import { QueryParams } from 'src/utils/dtos/types';
+import { Product } from 'src/utils/entities/product.entity';
+
+export const IProductsService = Symbol('ProductsService');
+
+export interface IProductsService {
+  findProduct(productId: number): Promise<Product | null>;
+  getUserProducts(userId: number): Promise<Product[]>;
+  getAllProducts(): Promise<Product[]>;
+  getFilteredSearchTextProducts(searchText: string): Promise<Product[]>;
+  getProductsByCategory(
+    category: string,
+    queryParams: QueryParams,
+  ): Promise<Product[]>;
+  getWomenFilteredProducts(queryParams: QueryParams): Promise<Product[]>;
+  getMenFilteredProducts(queryParams: QueryParams): Promise<Product[]>;
+  getMenProducts(): Promise<Product[]>;
+  deleteProduct(productId: number): Promise<void>;
+  uploadProduct(
+    productBody: ProductWithoutImageDto,
+    file: Express.Multer.File,
+    userId: number,
+  ): Promise<string>;
+  getPaginatedProducts(limit: number, offset: number): Promise<Product[]>;
+}