uodate create/detail - no upload file

lib/features/showrooms/data/datasources/design_request_remote_datasource.dart

@@ -3,6 +3,7 @@
 /// Handles remote API calls for design requests.
 library;
 
+import 'package:dio/dio.dart';
 import 'package:worker/core/constants/api_constants.dart';
 import 'package:worker/core/network/dio_client.dart';
 import 'package:worker/features/showrooms/data/models/design_request_model.dart';
@@ -17,6 +18,24 @@ abstract class DesignRequestRemoteDataSource {
 
   /// Fetch detail of a design request by name
   Future<DesignRequestModel> getDesignRequestDetail(String name);
+
+  /// Create a new design request
+  Future<String> createDesignRequest({
+    required String subject,
+    required String area,
+    required String region,
+    required String desiredStyle,
+    String? estimatedBudget,
+    required String detailedRequirements,
+    required String dateline,
+  });
+
+  /// Upload file attachment for a design request
+  Future<void> uploadDesignRequestFile({
+    required String requestId,
+    required String filePath,
+    required String fileName,
+  });
 }
 
 /// Design Request Remote Data Source Implementation
@@ -93,4 +112,94 @@ class DesignRequestRemoteDataSourceImpl implements DesignRequestRemoteDataSource
       throw Exception('Failed to get design request detail: $e');
     }
   }
+
+  /// Create a new design request
+  ///
+  /// Calls: POST /api/method/building_material.building_material.api.design_request.create
+  /// Body: { "subject": "...", "area": "...", "region": "...", ... }
+  /// Returns: Created request ID (name)
+  @override
+  Future<String> createDesignRequest({
+    required String subject,
+    required String area,
+    required String region,
+    required String desiredStyle,
+    String? estimatedBudget,
+    required String detailedRequirements,
+    required String dateline,
+  }) async {
+    try {
+      final response = await _dioClient.post<Map<String, dynamic>>(
+        '${ApiConstants.frappeApiMethod}${ApiConstants.createDesignRequest}',
+        data: {
+          'subject': subject,
+          'area': area,
+          'region': region,
+          'desired_style': desiredStyle,
+          if (estimatedBudget != null) 'estimated_budget': estimatedBudget,
+          'detailed_requirements': detailedRequirements,
+          'dateline': dateline,
+        },
+      );
+
+      final data = response.data;
+      if (data == null) {
+        throw Exception('No data received from createDesignRequest API');
+      }
+
+      // API returns: { "message": { "success": true, "data": { "name": "ISS-2025-00006" } } }
+      final message = data['message'] as Map<String, dynamic>?;
+      if (message == null) {
+        throw Exception('No message field in createDesignRequest response');
+      }
+
+      final success = message['success'] as bool? ?? false;
+      if (!success) {
+        throw Exception('Failed to create design request');
+      }
+
+      final requestData = message['data'] as Map<String, dynamic>?;
+      if (requestData == null) {
+        throw Exception('No data field in createDesignRequest response');
+      }
+
+      final name = requestData['name'] as String?;
+      if (name == null || name.isEmpty) {
+        throw Exception('No name returned from createDesignRequest');
+      }
+
+      return name;
+    } catch (e) {
+      throw Exception('Failed to create design request: $e');
+    }
+  }
+
+  /// Upload file attachment for a design request
+  ///
+  /// Calls: POST /api/method/upload_file
+  /// Form-data: { file, is_private, folder, doctype, docname, optimize }
+  @override
+  Future<void> uploadDesignRequestFile({
+    required String requestId,
+    required String filePath,
+    required String fileName,
+  }) async {
+    try {
+      final formData = FormData.fromMap({
+        'file': await MultipartFile.fromFile(filePath, filename: fileName),
+        'is_private': '0',
+        'folder': 'Home/Attachments',
+        'doctype': 'Issue',
+        'docname': requestId,
+        'optimize': 'true',
+      });
+
+      await _dioClient.post<Map<String, dynamic>>(
+        '${ApiConstants.frappeApiMethod}${ApiConstants.uploadFile}',
+        data: formData,
+      );
+    } catch (e) {
+      throw Exception('Failed to upload file: $e');
+    }
+  }
 }