progress on batches
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255
lib/screens/groups/controllers/group_controller.dart
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255
lib/screens/groups/controllers/group_controller.dart
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import 'package:flutter/material.dart';
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import 'package:qpay/http/http.dart';
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import 'package:qpay/models/api_response.dart';
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import 'package:qpay/models/pageable_model.dart';
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import 'package:qpay/screens/groups/models/recipient_group_model.dart';
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class GroupScreenModel {
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List<RecipientGroup> groups = [];
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List<RecipientGroupMember> members = [];
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bool isLoading = false;
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bool isLoadingMore = false;
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String? errorMessage;
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int currentPage = 0;
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int totalPages = 0;
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int totalElements = 0;
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String searchQuery = '';
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bool selectMode = false;
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Set<String> selectedGroupIds = {};
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}
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class GroupController extends ChangeNotifier {
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final GroupScreenModel model = GroupScreenModel();
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final Http http = Http();
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BuildContext context;
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bool _disposed = false;
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GroupController(this.context);
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@override
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void dispose() {
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_disposed = true;
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super.dispose();
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}
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dynamic _unwrap(dynamic response) {
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if (response is Map && response.containsKey('body')) {
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return response['body'];
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}
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return response;
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}
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String buildQueryParameters(Map<String, String> params) {
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if (params.isEmpty) {
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return '';
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}
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String query = '';
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params.forEach((key, value) {
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query += '$key=$value&';
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});
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return query.substring(0, query.length - 1);
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}
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Future<ApiResponse<PageableModel>> listGroups({
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required String userId,
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int page = 0,
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int size = 20,
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String? name,
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}) async {
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if (page == 0) {
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model.isLoading = true;
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model.groups = [];
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model.currentPage = 0;
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} else {
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model.isLoadingMore = true;
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}
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if (!_disposed) notifyListeners();
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try {
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final params = <String, String>{
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'userId': userId,
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'page': page.toString(),
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'size': size.toString(),
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};
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if (name != null && name.isNotEmpty) {
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params['name'] = name;
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}
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final raw = await http.get(
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'/public/recipient-groups?${buildQueryParameters(params)}',
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);
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final response = _unwrap(raw);
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final pageableModel =
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PageableModel.fromJson(response as Map<String, dynamic>);
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final newGroups = pageableModel.content
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.map((e) => RecipientGroup.fromJson(e as Map<String, dynamic>))
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.toList();
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if (page == 0) {
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model.groups = newGroups;
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} else {
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model.groups.addAll(newGroups);
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}
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model.currentPage = pageableModel.number;
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model.totalPages = pageableModel.totalPages;
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model.totalElements = pageableModel.totalElements;
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model.isLoading = false;
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model.isLoadingMore = false;
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if (!_disposed) notifyListeners();
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return ApiResponse.success(pageableModel);
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} catch (e) {
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logger.e(e);
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model.errorMessage = e.toString();
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if (page == 0) {
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model.groups = [];
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}
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model.isLoading = false;
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model.isLoadingMore = false;
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if (!_disposed) notifyListeners();
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return ApiResponse.failure('Failed to load groups');
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}
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}
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Future<void> searchGroups({
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required String userId,
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String? name,
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}) async {
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model.searchQuery = name ?? '';
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await listGroups(userId: userId, page: 0, name: name);
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}
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Future<void> loadNextPage({required String userId}) async {
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if (model.isLoadingMore || model.currentPage + 1 >= model.totalPages) {
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return;
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}
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await listGroups(
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userId: userId,
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page: model.currentPage + 1,
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name: model.searchQuery.isNotEmpty ? model.searchQuery : null,
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);
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}
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Future<ApiResponse<List<RecipientGroupMember>>> listMembers(
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String groupId,
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) async {
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model.isLoading = true;
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if (!_disposed) notifyListeners();
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try {
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final raw = await http.get(
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'/public/recipient-groups/members?recipientGroupId=$groupId',
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);
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final response = _unwrap(raw);
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final List<dynamic> content;
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if (response is List) {
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content = response;
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} else if (response is Map && response.containsKey('content')) {
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content = response['content'] as List<dynamic>;
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} else {
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content = [];
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}
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model.members = content
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.map((e) => RecipientGroupMember.fromJson(e as Map<String, dynamic>))
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.toList();
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model.isLoading = false;
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if (!_disposed) notifyListeners();
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return ApiResponse.success(model.members);
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} catch (e, s) {
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logger.e(e);
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logger.e(s);
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model.errorMessage = e.toString();
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model.members = [];
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model.isLoading = false;
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if (!_disposed) notifyListeners();
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return ApiResponse.failure('Failed to load members');
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}
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}
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Future<ApiResponse<RecipientGroup>> createGroup(
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CreateGroupRequest req,
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) async {
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model.isLoading = true;
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if (!_disposed) notifyListeners();
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try {
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final raw = await http.post('/public/recipient-groups', req.toJson());
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final response = _unwrap(raw);
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final group = RecipientGroup.fromJson(response as Map<String, dynamic>);
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model.groups = [group, ...model.groups];
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model.isLoading = false;
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if (!_disposed) notifyListeners();
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return ApiResponse.success(group);
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} catch (e) {
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logger.e(e);
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model.errorMessage = e.toString();
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model.isLoading = false;
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if (!_disposed) notifyListeners();
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return ApiResponse.failure('Failed to create group');
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}
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}
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Future<void> deleteGroup({
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required String groupId,
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required String userId,
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}) async {
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try {
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await http.delete(
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'/public/recipient-groups/delete/$groupId?userId=$userId',
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);
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model.groups.removeWhere((g) => g.id == groupId);
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model.selectedGroupIds.remove(groupId);
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if (!_disposed) notifyListeners();
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} catch (e) {
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logger.e(e);
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model.errorMessage = e.toString();
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if (!_disposed) notifyListeners();
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}
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}
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void toggleSelectMode() {
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model.selectMode = !model.selectMode;
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if (!model.selectMode) {
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model.selectedGroupIds.clear();
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}
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if (!_disposed) notifyListeners();
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}
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void toggleGroupSelection(String groupId) {
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if (model.selectedGroupIds.contains(groupId)) {
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model.selectedGroupIds.remove(groupId);
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} else {
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model.selectedGroupIds.add(groupId);
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}
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if (!_disposed) notifyListeners();
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}
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Future<void> removeMember({
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required String groupId,
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required String recipientId,
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required String userId,
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}) async {
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try {
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await http.delete(
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'/public/recipient-groups/$groupId/members/$recipientId?userId=$userId',
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);
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model.members.removeWhere((m) => m.id == recipientId);
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if (!_disposed) notifyListeners();
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} catch (e) {
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logger.e(e);
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model.errorMessage = e.toString();
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if (!_disposed) notifyListeners();
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}
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}
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Future<void> deleteSelectedGroups({required String userId}) async {
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final idsToDelete = List<String>.from(model.selectedGroupIds);
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model.selectMode = false;
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model.selectedGroupIds.clear();
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if (!_disposed) notifyListeners();
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for (final id in idsToDelete) {
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await deleteGroup(groupId: id, userId: userId);
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}
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}
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}
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