Sp 1722 fe implement duplicate space feature (#365)

<!--
  Thanks for contributing!

Provide a description of your changes below and a general summary in the
title

Please look at the following checklist to ensure that your PR can be
accepted quickly:
-->

## Jira Ticket
[SP-1722](https://syncrow.atlassian.net/browse/SP-1722)

## Description

Implemented a feature that allows users to duplicate a space.

## Type of Change

<!--- Put an `x` in all the boxes that apply: -->

- [x] ✨ New feature (non-breaking change which adds functionality)
- [ ] 🛠️ Bug fix (non-breaking change which fixes an issue)
- [ ] ❌ Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] 🧹 Code refactor
- [ ] ✅ Build configuration change
- [ ] 📝 Documentation
- [ ] 🗑️ Chore 


[SP-1722]:
https://syncrow.atlassian.net/browse/SP-1722?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

lib/pages/space_management_v2/main_module/widgets/community_structure_canvas.dart

@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:syncrow_web/pages/space_management_v2/main_module/helpers/spaces_recursive_helper.dart';
@@ -51,13 +53,23 @@ class _CommunityStructureCanvasState extends State<CommunityStructureCanvas>
       duration: const Duration(milliseconds: 150),
     );
     super.initState();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) {
+        _centerOnTree();
+      }
+    });
   }
 
   @override
   void didUpdateWidget(covariant CommunityStructureCanvas oldWidget) {
     super.didUpdateWidget(oldWidget);
-    if (widget.selectedSpace == null) return;
+    if (oldWidget.community.uuid != widget.community.uuid) {
-    if (widget.selectedSpace?.uuid != oldWidget.selectedSpace?.uuid) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (mounted) {
+          _centerOnTree(animate: true);
+        }
+      });
+    } else if (widget.selectedSpace?.uuid != oldWidget.selectedSpace?.uuid) {
       WidgetsBinding.instance.addPostFrameCallback((_) {
         if (mounted) {
           _animateToSpace(widget.selectedSpace);
@@ -151,6 +163,60 @@ class _CommunityStructureCanvasState extends State<CommunityStructureCanvas>
     _runAnimation(matrix);
   }
 
+  void _centerOnTree({bool animate = false}) {
+    if (_positions.isEmpty) {
+      if (animate) {
+        _runAnimation(Matrix4.identity());
+      } else {
+        _transformationController.value = Matrix4.identity();
+      }
+      return;
+    }
+
+    var minX = double.infinity;
+    var maxX = double.negativeInfinity;
+    var minY = double.infinity;
+    var maxY = double.negativeInfinity;
+
+    _positions.forEach((uuid, offset) {
+      final cardWidth = _cardWidths[uuid] ?? _minCardWidth;
+      minX = min(minX, offset.dx);
+      maxX = max(maxX, offset.dx + cardWidth);
+      minY = min(minY, offset.dy);
+      maxY = max(maxY, offset.dy + _cardHeight);
+    });
+
+    if (!minX.isFinite || !maxX.isFinite || !minY.isFinite || !maxY.isFinite) {
+      return;
+    }
+
+    final treeWidth = maxX - minX;
+    final treeHeight = maxY - minY;
+
+    final viewSize = context.size;
+    if (viewSize == null) return;
+
+    final scaleX = viewSize.width / treeWidth;
+    final scaleY = viewSize.height / treeHeight;
+    final scale = min(scaleX, scaleY).clamp(0.5, 1.0) * 0.9;
+
+    final treeCenterX = minX + treeWidth / 2;
+    final treeCenterY = minY + treeHeight / 2;
+
+    final x = -treeCenterX * scale + viewSize.width / 2;
+    final y = -treeCenterY * scale + viewSize.height / 2;
+
+    final matrix = Matrix4.identity()
+      ..translate(x, y)
+      ..scale(scale);
+
+    if (animate) {
+      _runAnimation(matrix);
+    } else {
+      _transformationController.value = matrix;
+    }
+  }
+
   void _onReorder(SpaceReorderDataModel data, int newIndex) {
     final newCommunity = widget.community.copyWith();
     final children = data.parent?.children ?? newCommunity.spaces;

lib/pages/space_management_v2/main_module/widgets/community_structure_header_action_buttons_composer.dart

@@ -7,6 +7,7 @@ import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain
 import 'package:syncrow_web/pages/space_management_v2/modules/communities/presentation/bloc/communities_bloc.dart';
 import 'package:syncrow_web/pages/space_management_v2/modules/communities/presentation/communities_tree_selection_bloc/communities_tree_selection_bloc.dart';
 import 'package:syncrow_web/pages/space_management_v2/modules/delete_space/presentation/widgets/delete_space_dialog.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/presentation/views/duplicate_space_dialog.dart';
 import 'package:syncrow_web/pages/space_management_v2/modules/space_details/presentation/helpers/space_details_dialog_helper.dart';
 
 class CommunityStructureHeaderActionButtonsComposer extends StatelessWidget {
@@ -44,7 +45,22 @@ class CommunityStructureHeaderActionButtonsComposer extends StatelessWidget {
           },
         ),
       ),
-      onDuplicate: (space) {},
+      onDuplicate: (space) => showDialog<void>(
+        context: context,
+        builder: (_) => DuplicateSpaceDialog(
+          initialName: space.spaceName,
+          selectedSpaceUuid: space.uuid,
+          selectedCommunityUuid: selectedCommunity.uuid,
+          onSuccess: (spaces) {
+            final updatedCommunity = selectedCommunity.copyWith(
+              spaces: spaces,
+            );
+            context.read<CommunitiesBloc>().add(
+                  CommunitiesUpdateCommunity(updatedCommunity),
+                );
+          },
+        ),
+      ),
       onEdit: (space) => SpaceDetailsDialogHelper.showEdit(
         context,
         spaceModel: selectedSpace!,

lib/pages/space_management_v2/main_module/widgets/space_management_body.dart

@@ -10,21 +10,26 @@ class SpaceManagementBody extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Row(
+    return Stack(
       children: [
-        const SpaceManagementCommunitiesTree(),
+        Row(
-        Expanded(
+          children: [
-          child: BlocBuilder<CommunitiesTreeSelectionBloc,
+            const SizedBox(width: 320),
-              CommunitiesTreeSelectionState>(
+            Expanded(
-            buildWhen: (previous, current) =>
+              child: BlocBuilder<CommunitiesTreeSelectionBloc,
-                previous.selectedCommunity != current.selectedCommunity,
+                  CommunitiesTreeSelectionState>(
-            builder: (context, state) => Visibility(
+                buildWhen: (previous, current) =>
-              visible: state.selectedCommunity == null,
+                    previous.selectedCommunity != current.selectedCommunity,
-              replacement: const SpaceManagementCommunityStructure(),
+                builder: (context, state) => Visibility(
-              child: const SpaceManagementTemplatesView(),
+                  visible: state.selectedCommunity == null,
+                  replacement: const SpaceManagementCommunityStructure(),
+                  child: const SpaceManagementTemplatesView(),
+                ),
+              ),
             ),
-          ),
+          ],
         ),
+        const SpaceManagementCommunitiesTree(),
       ],
     );
   }

lib/pages/space_management_v2/modules/communities/presentation/widgets/space_management_communities_tree.dart

@@ -9,6 +9,7 @@ import 'package:syncrow_web/pages/space_management_v2/modules/communities/presen
 import 'package:syncrow_web/pages/space_management_v2/modules/communities/presentation/widgets/space_management_communities_tree_community_tile.dart';
 import 'package:syncrow_web/pages/space_management_v2/modules/communities/presentation/widgets/space_management_sidebar_communities_list.dart';
 import 'package:syncrow_web/pages/space_management_v2/modules/communities/presentation/widgets/space_management_sidebar_header.dart';
+import 'package:syncrow_web/utils/color_manager.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class SpaceManagementCommunitiesTree extends StatefulWidget {
@@ -44,7 +45,15 @@ class _SpaceManagementCommunitiesTreeState
     return BlocBuilder<CommunitiesBloc, CommunitiesState>(
       builder: (context, state) => Container(
         width: 320,
-        decoration: subSectionContainerDecoration,
+        decoration: subSectionContainerDecoration.copyWith(
+          boxShadow: [
+            BoxShadow(
+              color: ColorsManager.shadowBlackColor.withValues(alpha: 0.1),
+              blurRadius: 10,
+              offset: const Offset(10, 0),
+            ),
+          ],
+        ),
         child: Column(
           children: [
             const SpaceManagementSidebarHeader(),

lib/pages/space_management_v2/modules/duplicate_space/data/services/remote_duplicate_space_service.dart

@@ -0,0 +1,60 @@
+import 'package:dio/dio.dart';
+import 'package:syncrow_web/pages/common/bloc/project_manager.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/space_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/domain/params/duplicate_space_param.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/domain/services/duplicate_space_service.dart';
+import 'package:syncrow_web/services/api/api_exception.dart';
+import 'package:syncrow_web/services/api/http_service.dart';
+import 'package:syncrow_web/utils/constants/api_const.dart';
+
+final class RemoteDuplicateSpaceService implements DuplicateSpaceService {
+  RemoteDuplicateSpaceService(this._httpService);
+
+  final HTTPService _httpService;
+
+  @override
+  Future<List<SpaceModel>> duplicateSpace(DuplicateSpaceParam param) async {
+    try {
+      final response = await _httpService.post(
+        path: await _makeUrl(param),
+        body: param.toJson(),
+        expectedResponseModel: (json) {
+          final response = json as Map<String, dynamic>;
+          final data = response['data'] as List<dynamic>;
+          return data
+              .map((e) => SpaceModel.fromJson(e as Map<String, dynamic>))
+              .toList();
+        },
+      );
+
+      return response;
+    } on DioException catch (e) {
+      final message = e.response?.data as Map<String, dynamic>?;
+      final error = message?['error'] as Map<String, dynamic>?;
+      final errorMessage = error?['error'] as String? ?? '';
+      throw APIException(errorMessage);
+    } catch (e) {
+      throw APIException(e.toString());
+    }
+  }
+
+  Future<String> _makeUrl(DuplicateSpaceParam param) async {
+    final projectUuid = await ProjectManager.getProjectUUID();
+    if (projectUuid == null) {
+      throw APIException('Project UUID is not set');
+    }
+
+    if (param.communityUuid.isEmpty) {
+      throw APIException('Community UUID is not set');
+    }
+
+    if (param.spaceUuid.isEmpty) {
+      throw APIException('Space UUID is not set');
+    }
+
+    return ApiEndpoints.duplicateSpace
+        .replaceAll('{projectUuid}', projectUuid)
+        .replaceAll('{communityUuid}', param.communityUuid)
+        .replaceAll('{spaceUuid}', param.spaceUuid);
+  }
+}

lib/pages/space_management_v2/modules/duplicate_space/domain/params/duplicate_space_param.dart

@@ -0,0 +1,15 @@
+class DuplicateSpaceParam {
+  final String communityUuid;
+  final String spaceUuid;
+  final String newSpaceName;
+
+  DuplicateSpaceParam({
+    required this.communityUuid,
+    required this.spaceUuid,
+    required this.newSpaceName,
+  });
+
+  Map<String, dynamic> toJson() => {
+        'spaceName': newSpaceName,
+      };
+}

lib/pages/space_management_v2/modules/duplicate_space/domain/services/duplicate_space_service.dart

@@ -0,0 +1,6 @@
+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/space_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/domain/params/duplicate_space_param.dart';
+
+abstract interface class DuplicateSpaceService {
+  Future<List<SpaceModel>> duplicateSpace(DuplicateSpaceParam param);
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/bloc/duplicate_space_bloc.dart

@@ -0,0 +1,36 @@
+import 'package:bloc/bloc.dart';
+import 'package:equatable/equatable.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/space_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/domain/params/duplicate_space_param.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/domain/services/duplicate_space_service.dart';
+import 'package:syncrow_web/services/api/api_exception.dart';
+
+part 'duplicate_space_event.dart';
+part 'duplicate_space_state.dart';
+
+class DuplicateSpaceBloc extends Bloc<DuplicateSpaceEvent, DuplicateSpaceState> {
+  DuplicateSpaceBloc(
+    this._duplicateSpaceService,
+  ) : super(const DuplicateSpaceInitial()) {
+    on<DuplicateSpaceEvent>(_onDuplicateSpaceEvent);
+  }
+
+  final DuplicateSpaceService _duplicateSpaceService;
+
+  Future<void> _onDuplicateSpaceEvent(
+    DuplicateSpaceEvent event,
+    Emitter<DuplicateSpaceState> emit,
+  ) async {
+    try {
+      emit(const DuplicateSpaceLoading());
+      final result = await _duplicateSpaceService.duplicateSpace(event.param);
+      emit(DuplicateSpaceSuccess(result));
+    } on APIException catch (e) {
+      emit(DuplicateSpaceFailure(e.message));
+    } catch (e) {
+      emit(DuplicateSpaceFailure(e.toString()));
+    } finally {
+      emit(const DuplicateSpaceInitial());
+    }
+  }
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/bloc/duplicate_space_event.dart

@@ -0,0 +1,10 @@
+part of 'duplicate_space_bloc.dart';
+
+final class DuplicateSpaceEvent extends Equatable {
+  const DuplicateSpaceEvent({required this.param});
+
+  final DuplicateSpaceParam param;
+
+  @override
+  List<Object> get props => [param];
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/bloc/duplicate_space_state.dart

@@ -0,0 +1,34 @@
+part of 'duplicate_space_bloc.dart';
+
+sealed class DuplicateSpaceState extends Equatable {
+  const DuplicateSpaceState();
+
+  @override
+  List<Object> get props => [];
+}
+
+final class DuplicateSpaceInitial extends DuplicateSpaceState {
+  const DuplicateSpaceInitial();
+}
+
+final class DuplicateSpaceLoading extends DuplicateSpaceState {
+  const DuplicateSpaceLoading();
+}
+
+final class DuplicateSpaceSuccess extends DuplicateSpaceState {
+  const DuplicateSpaceSuccess(this.spaces);
+
+  final List<SpaceModel> spaces;
+
+  @override
+  List<Object> get props => [spaces];
+}
+
+final class DuplicateSpaceFailure extends DuplicateSpaceState {
+  const DuplicateSpaceFailure(this.errorMessage);
+
+  final String errorMessage;
+
+  @override
+  List<Object> get props => [errorMessage];
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/views/duplicate_space_dialog.dart

@@ -0,0 +1,69 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:syncrow_web/common/widgets/app_loading_indicator.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/communities/domain/models/space_model.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/data/services/remote_duplicate_space_service.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/presentation/bloc/duplicate_space_bloc.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/presentation/widgets/duplicate_space_dialog_form.dart';
+import 'package:syncrow_web/services/api/http_service.dart';
+import 'package:syncrow_web/utils/extension/app_snack_bar.dart';
+
+class DuplicateSpaceDialog extends StatelessWidget {
+  const DuplicateSpaceDialog({
+    required this.initialName,
+    required this.onSuccess,
+    required this.selectedSpaceUuid,
+    required this.selectedCommunityUuid,
+    super.key,
+  });
+
+  final String initialName;
+  final void Function(List<SpaceModel> spaces) onSuccess;
+  final String selectedSpaceUuid;
+  final String selectedCommunityUuid;
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocProvider(
+      create: (context) => DuplicateSpaceBloc(
+        RemoteDuplicateSpaceService(HTTPService()),
+      ),
+      child: BlocListener<DuplicateSpaceBloc, DuplicateSpaceState>(
+        listener: _listener,
+        child: DuplicateSpaceDialogForm(
+          initialName: initialName,
+          selectedSpaceUuid: selectedSpaceUuid,
+          selectedCommunityUuid: selectedCommunityUuid,
+        ),
+      ),
+    );
+  }
+
+  void _listener(BuildContext context, DuplicateSpaceState state) {
+    switch (state) {
+      case DuplicateSpaceLoading():
+        showDialog<void>(
+          context: context,
+          barrierDismissible: false,
+          builder: (context) => const AppLoadingIndicator(),
+        );
+        break;
+
+      case DuplicateSpaceFailure(:final errorMessage):
+        Navigator.pop(context);
+        Navigator.pop(context);
+        context.showFailureSnackbar(errorMessage);
+        break;
+
+      case DuplicateSpaceSuccess(:final spaces):
+        onSuccess.call(spaces);
+        Navigator.of(context).pop();
+        Navigator.of(context).pop();
+        context.showSuccessSnackbar('Space duplicated successfully');
+        break;
+
+      default:
+        break;
+    }
+  }
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/widgets/duplicate_space_dialog_form.dart

@@ -0,0 +1,84 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/domain/params/duplicate_space_param.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/presentation/bloc/duplicate_space_bloc.dart';
+import 'package:syncrow_web/pages/space_management_v2/modules/duplicate_space/presentation/widgets/duplicate_space_text_field.dart';
+
+class DuplicateSpaceDialogForm extends StatefulWidget {
+  const DuplicateSpaceDialogForm({
+    required this.initialName,
+    required this.selectedSpaceUuid,
+    required this.selectedCommunityUuid,
+    super.key,
+  });
+
+  final String initialName;
+  final String selectedSpaceUuid;
+  final String selectedCommunityUuid;
+
+  @override
+  State<DuplicateSpaceDialogForm> createState() => _DuplicateSpaceDialogFormState();
+}
+
+class _DuplicateSpaceDialogFormState extends State<DuplicateSpaceDialogForm> {
+  late final TextEditingController _nameController;
+  bool _isNameValid = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _nameController = TextEditingController(text: '${widget.initialName}(1)');
+    _nameController.addListener(_validateName);
+  }
+
+  void _validateName() => setState(
+        () => _isNameValid = _nameController.text.trim() != widget.initialName,
+      );
+
+  @override
+  void dispose() {
+    _nameController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: const SelectableText('Duplicate Space'),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        spacing: 16,
+        children: [
+          const SelectableText('Enter a new name for the duplicated space:'),
+          DuplicateSpaceTextField(
+            nameController: _nameController,
+            isNameValid: _isNameValid,
+            initialName: widget.initialName,
+          ),
+        ],
+      ),
+      actions: [
+        TextButton(
+          onPressed: Navigator.of(context).pop,
+          child: const Text('Cancel'),
+        ),
+        TextButton(
+          onPressed: _isNameValid ? () => _submit(context) : null,
+          child: const Text('Duplicate'),
+        ),
+      ],
+    );
+  }
+
+  void _submit(BuildContext context) {
+    context.read<DuplicateSpaceBloc>().add(
+          DuplicateSpaceEvent(
+            param: DuplicateSpaceParam(
+              newSpaceName: _nameController.text,
+              spaceUuid: widget.selectedSpaceUuid,
+              communityUuid: widget.selectedCommunityUuid,
+            ),
+          ),
+        );
+  }
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/widgets/duplicate_space_failure_dialog.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/material.dart';
+
+class DuplicateSpaceFailureDialog extends StatelessWidget {
+  const DuplicateSpaceFailureDialog(this.errorMessage, {super.key});
+
+  final String errorMessage;
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: const Text('Failed to duplicate space'),
+      content: Text(errorMessage),
+      actions: [
+        TextButton(
+          onPressed: Navigator.of(context).pop,
+          child: const Text('Close'),
+        ),
+      ],
+    );
+  }
+}

lib/pages/space_management_v2/modules/duplicate_space/presentation/widgets/duplicate_space_text_field.dart

@@ -0,0 +1,51 @@
+import 'package:flutter/material.dart';
+import 'package:syncrow_web/utils/color_manager.dart';
+import 'package:syncrow_web/utils/extension/build_context_x.dart';
+
+class DuplicateSpaceTextField extends StatelessWidget {
+  const DuplicateSpaceTextField({
+    required this.nameController,
+    required this.isNameValid,
+    required this.initialName,
+    super.key,
+  });
+
+  final TextEditingController nameController;
+  final bool isNameValid;
+  final String initialName;
+
+  String get _errorText => 'Name must be different from "$initialName"';
+
+  @override
+  Widget build(BuildContext context) {
+    return TextField(
+      controller: nameController,
+      style: context.textTheme.bodyMedium!.copyWith(
+        color: ColorsManager.blackColor,
+      ),
+      decoration: InputDecoration(
+        label: const Text('Space Name'),
+        border: _border(),
+        enabledBorder: _border(),
+        focusedBorder: _border(ColorsManager.primaryColor),
+        errorBorder: _border(context.theme.colorScheme.error),
+        focusedErrorBorder: _border(context.theme.colorScheme.error),
+        errorStyle: context.textTheme.bodyMedium!.copyWith(
+          color: context.theme.colorScheme.error,
+          fontSize: 8,
+        ),
+        errorText: isNameValid ? null : _errorText,
+      ),
+    );
+  }
+
+  OutlineInputBorder _border([Color? color]) {
+    return OutlineInputBorder(
+      borderRadius: BorderRadius.circular(16),
+      borderSide: BorderSide(
+        color: color ?? ColorsManager.blackColor,
+        width: 0.5,
+      ),
+    );
+  }
+}

lib/pages/space_management_v2/modules/space_details/presentation/widgets/space_sub_spaces_dialog.dart

@@ -19,6 +19,7 @@ class SpaceSubSpacesDialog extends StatefulWidget {
 }
 
 class _SpaceSubSpacesDialogState extends State<SpaceSubSpacesDialog> {
+  late final TextEditingController _subspaceNameController;
   late List<Subspace> _subspaces;
 
   bool get _hasDuplicateNames =>
@@ -29,6 +30,13 @@ class _SpaceSubSpacesDialogState extends State<SpaceSubSpacesDialog> {
   void initState() {
     super.initState();
     _subspaces = List.from(widget.subspaces);
+    _subspaceNameController = TextEditingController();
+  }
+
+  @override
+  void dispose() {
+    _subspaceNameController.dispose();
+    super.dispose();
   }
 
   void _handleSubspaceAdded(String name) {
@@ -49,6 +57,10 @@ class _SpaceSubSpacesDialogState extends State<SpaceSubSpacesDialog> {
       );
 
   void _handleSave() {
+    final name = _subspaceNameController.text.trim();
+    if (name.isNotEmpty) {
+      _handleSubspaceAdded(name);
+    }
     widget.onSave(_subspaces);
     Navigator.of(context).pop();
   }
@@ -65,6 +77,7 @@ class _SpaceSubSpacesDialogState extends State<SpaceSubSpacesDialog> {
             subSpaces: _subspaces,
             onSubspaceAdded: _handleSubspaceAdded,
             onSubspaceDeleted: _handleSubspaceDeleted,
+            controller: _subspaceNameController,
           ),
           AnimatedSwitcher(
             duration: const Duration(milliseconds: 100),

lib/pages/space_management_v2/modules/space_details/presentation/widgets/sub_spaces_input.dart

@@ -10,29 +10,28 @@ class SubSpacesInput extends StatefulWidget {
     required this.subSpaces,
     required this.onSubspaceAdded,
     required this.onSubspaceDeleted,
+    required this.controller,
   });
 
   final List<Subspace> subSpaces;
   final void Function(String name) onSubspaceAdded;
   final void Function(String uuid) onSubspaceDeleted;
+  final TextEditingController controller;
 
   @override
   State<SubSpacesInput> createState() => _SubSpacesInputState();
 }
 
 class _SubSpacesInputState extends State<SubSpacesInput> {
-  late final TextEditingController _subspaceNameController;
   late final FocusNode _focusNode;
   @override
   void initState() {
     super.initState();
-    _subspaceNameController = TextEditingController();
     _focusNode = FocusNode();
   }
 
   @override
   void dispose() {
-    _subspaceNameController.dispose();
     _focusNode.dispose();
     super.dispose();
   }
@@ -81,7 +80,7 @@ class _SubSpacesInputState extends State<SubSpacesInput> {
             width: 200,
             child: TextField(
               focusNode: _focusNode,
-              controller: _subspaceNameController,
+              controller: widget.controller,
               decoration: InputDecoration(
                 border: InputBorder.none,
                 hintText: widget.subSpaces.isEmpty ? 'Please enter the name' : null,
@@ -93,7 +92,7 @@ class _SubSpacesInputState extends State<SubSpacesInput> {
                 final trimmedValue = value.trim();
                 if (trimmedValue.isNotEmpty) {
                   widget.onSubspaceAdded(trimmedValue);
-                  _subspaceNameController.clear();
+                  widget.controller.clear();
                   _focusNode.requestFocus();
                 }
               },

lib/utils/constants/api_const.dart

@@ -141,7 +141,7 @@ abstract class ApiEndpoints {
       '/projects/{projectUuid}/communities/{communityUuid}/spaces/{spaceUuid}/subspaces/{subSpaceUuid}/devices/{deviceUuid}';
   static const String saveSchedule = '/schedule/{deviceUuid}';
 
-
+  static const String duplicateSpace = '/projects/{projectUuid}/communities/{communityUuid}/spaces/{spaceUuid}/duplicate';
 
   ////booking System
   static const String bookableSpaces = '/bookable-spaces';

lib/utils/extension/app_snack_bar.dart

@@ -0,0 +1,56 @@
+import 'package:flutter/material.dart';
+import 'package:syncrow_web/utils/color_manager.dart';
+import 'package:syncrow_web/utils/extension/build_context_x.dart';
+
+extension AppSnackBarsBuildContextExtension on BuildContext {
+  void showSuccessSnackbar(String message) {
+    ScaffoldMessenger.of(this).showSnackBar(
+      _makeSnackbar(
+        message: message,
+        icon: Icons.check_circle,
+        backgroundColor: Colors.green,
+      ),
+    );
+  }
+
+  void showFailureSnackbar(String message) {
+    ScaffoldMessenger.of(this).showSnackBar(
+      _makeSnackbar(
+        message: message,
+        icon: Icons.error,
+        backgroundColor: Colors.red,
+      ),
+    );
+  }
+
+  SnackBar _makeSnackbar({
+    required String message,
+    required Color backgroundColor,
+    required IconData icon,
+  }) {
+    return SnackBar(
+      content: Row(
+        mainAxisSize: MainAxisSize.min,
+        spacing: 8,
+        children: [
+          Icon(icon, color: Colors.white),
+          Text(
+            message,
+            style: textTheme.bodyMedium?.copyWith(
+              color: ColorsManager.whiteColors,
+            ),
+          ),
+        ],
+      ),
+      backgroundColor: backgroundColor,
+      behavior: SnackBarBehavior.floating,
+      shape: RoundedRectangleBorder(
+        borderRadius: BorderRadius.circular(12.0),
+      ),
+      margin: const EdgeInsetsDirectional.symmetric(
+        horizontal: 92,
+        vertical: 32,
+      ),
+    );
+  }
+}