fix product search/filter

lib/features/products/domain/repositories/products_repository.dart

@@ -26,8 +26,14 @@ abstract class ProductsRepository {
   /// Search products by query
   ///
   /// [query] - Search term to filter products
+  /// [limitStart] - Starting index for pagination (default: 0)
+  /// [limitPageLength] - Number of items per page (default: 12)
   /// Returns filtered list of products matching the query.
-  Future<List<Product>> searchProducts(String query);
+  Future<List<Product>> searchProducts(
+    String query, {
+    int limitStart = 0,
+    int limitPageLength = 12,
+  });
 
   /// Get products by category
   ///
@@ -52,4 +58,23 @@ abstract class ProductsRepository {
   ///
   /// Returns a list of all product categories.
   Future<List<Category>> getCategories();
+
+  /// Get products with filters
+  ///
+  /// Fetches products with comprehensive filtering support:
+  /// - [itemGroups] - List of product group names to filter by
+  /// - [brands] - List of brand names to filter by
+  /// - [itemAttributes] - List of attribute filters (attribute + value pairs)
+  /// - [searchKeyword] - Search query string
+  /// - [limitStart] - Starting index for pagination (default: 0)
+  /// - [limitPageLength] - Number of items per page (default: 12)
+  /// Returns filtered list of products matching all criteria.
+  Future<List<Product>> getProductsWithFilters({
+    int limitStart = 0,
+    int limitPageLength = 12,
+    List<String>? itemGroups,
+    List<String>? brands,
+    List<Map<String, String>>? itemAttributes,
+    String? searchKeyword,
+  });
 }

lib/features/products/domain/usecases/search_products.dart

@@ -1,6 +1,6 @@
 /// Use Case: Search Products
 ///
-/// Business logic for searching products by query string.
+/// Business logic for searching products by query string with pagination support.
 library;
 
 import 'package:worker/features/products/domain/entities/product.dart';
@@ -8,7 +8,7 @@ import 'package:worker/features/products/domain/repositories/products_repository
 
 /// Search Products Use Case
 ///
-/// Searches for products matching the given query string.
+/// Searches for products matching the given query string with pagination.
 class SearchProducts {
   final ProductsRepository repository;
 
@@ -17,13 +17,26 @@ class SearchProducts {
   /// Execute the use case
   ///
   /// [query] - Search query string
+  /// [limitStart] - Starting index for pagination (default: 0)
+  /// [limitPageLength] - Number of items per page (default: 12)
   /// Returns list of products matching the query
-  Future<List<Product>> call(String query) async {
+  Future<List<Product>> call(
+    String query, {
+    int limitStart = 0,
+    int limitPageLength = 12,
+  }) async {
     // Return all products if query is empty
     if (query.trim().isEmpty) {
-      return await repository.getAllProducts();
+      return await repository.getAllProducts(
+        limitStart: limitStart,
+        limitPageLength: limitPageLength,
+      );
     }
 
-    return await repository.searchProducts(query);
+    return await repository.searchProducts(
+      query,
+      limitStart: limitStart,
+      limitPageLength: limitPageLength,
+    );
   }
 }