/// <summary>
        /// Getting invitations send by me to my contacts
        /// </summary>
        /// <returns></returns>
        public static async Task <List <Invitation> > GetMyInvitations()
        {
            List <Invitation> invites = new List <Invitation>();

            string receivedlink = "https://planningway.ru/invitation/get-my-invitation";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId})}");
            var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId }));

            JObject jsonString = JObject.Parse(resultOfRequest);

            Debug.WriteLine($"Получаемые данные \n{jsonString}");

            int resultOfSynchronization = (int)jsonString["answer"];

            if (resultOfSynchronization != 0)
            {
                return(invites);
            }

            foreach (var result in jsonString["invitations"].Children().ToList())
            {
                invites.Add(result.ToObject <Invitation>());
            }

            return(invites);
        }
        /// <summary>
        /// Cancel invitations for my contacts
        /// </summary>
        /// <param name="ids">Id's of unsubscribed invites</param>
        /// <returns>0 - success, 1 - error</returns>
        public static async Task <int> UnsubscribeInvitations(string id)
        {
            int resultOfSynchronization = 1;

            if (string.IsNullOrEmpty(id))
            {
                return(resultOfSynchronization);
            }

            string receivedlink = "https://planningway.ru/invitation/delete-invitation";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId, isDelete = id })}");
            var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId, isDelete = id }));

            JObject jsonString = JObject.Parse(resultOfRequest);

            Debug.WriteLine($"Получаемые данные \n{jsonString}");

            resultOfSynchronization = (int)jsonString["answer"];

            return(resultOfSynchronization);
        }
        /// <summary>
        /// Sending invitation to contacts for project
        /// </summary>
        /// <param name="contacts">List of contacts for sending invitation</param>
        /// <param name="project">Shared project</param>
        /// <returns>0 - success, 1 - operation error</returns>
        public static async Task <int> SendInvitationToContact(IList <string> contacts, Project project)
        {
            int resultOfSynchronization = 1;

            if (contacts.Count < 1 || project == null)
            {
                return(resultOfSynchronization);
            }

            string receivedlink = "https://planningway.ru/invitation/invite";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            List <Invitation> invitations = new List <Invitation>(contacts.Count);

            foreach (var item in contacts)
            {
                invitations.Add(new Invitation(item, project.Id));
            }

            Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId, invitations })}");
            var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId, invitations }));

            JObject jsonString = JObject.Parse(resultOfRequest);

            Debug.WriteLine($"Получаемые данные \n{jsonString}");

            resultOfSynchronization = (int)jsonString["answer"];

            return(resultOfSynchronization);
        }
        /// <summary>
        /// Get public map events from added contacts
        /// </summary>
        /// <returns>Result of getting</returns>
        public static async Task <(int operationResult, List <Project> publicProjects, List <MapEvent> publicEvents)> GetPublicMapEventsAsync()
        {
            int resultOfSynchronization = 1;

            string receivedlink = "https://planningway.ru/data/get-public";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId })}");
            var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId }));

            JObject jsonString = JObject.Parse(resultOfRequest);

            Debug.WriteLine($"Получаемые данные \n{jsonString}");

            resultOfSynchronization = (int)jsonString["answer"];

            if (resultOfSynchronization != 0)
            {
                return(resultOfSynchronization, null, null);
            }

            List <Project> receivedProjects = new List <Project>();

            foreach (var result in jsonString["projects"].Children().ToList())
            {
                var searchResult = result.ToObject <Project>();
                searchResult.CreateAt = searchResult.UpdateAt = DateTime.UtcNow;

                receivedProjects.Add(searchResult);
            }

            List <MapEvent> receivedMapEvents = new List <MapEvent>();

            foreach (var result in jsonString["events"].Children().ToList())
            {
                var searchResult = result.ToObject <MapEvent>();
                searchResult.ProjectOwnerEmail = (string)localSettings.Values["email"];
                searchResult.CreateAt          = searchResult.UpdateAt = DateTime.UtcNow;

                receivedMapEvents.Add(searchResult);
            }

            return(resultOfSynchronization, receivedProjects, receivedMapEvents);
        }
        /// <summary>
        /// Accepting of contact project
        /// </summary>
        /// <param name="projectId">Id of accepted project</param>
        /// <returns></returns>
        public static async Task <(Project project, List <MapEvent> events)> AcceptInvite(string projectId)
        {
            Project         project = new Project();
            List <MapEvent> events  = new List <MapEvent>();

            if (string.IsNullOrEmpty(projectId))
            {
                return(project, events);
            }

            string receivedlink = "https://planningway.ru/invitation/accept";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId, projectId })}");
            var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId, projectId }));

            JObject jsonString = JObject.Parse(resultOfRequest);

            Debug.WriteLine($"Получаемые данные \n{jsonString}");

            int resultOfSynchronization = (int)jsonString["answer"];

            if (resultOfSynchronization != 0)
            {
                return(project, events);
            }

            project = jsonString["project"].ToObject <Project>();

            foreach (var result in jsonString["events"].Children().ToList())
            {
                var temp = result.ToObject <MapEvent>();
                temp.UpdateAt     = temp.CreateAt = DateTime.UtcNow;
                temp.EmailOfOwner = (string)localSettings.Values["email"];

                events.Add(temp);
            }

            return(project, events);
        }
        /// <summary>
        /// Sending data to server
        /// </summary>
        /// <param name="destination">Send request to</param>
        /// <param name="user">Object of <see cref="User"/></param>
        /// <returns>Return code from server: 0 - success, 1 - fail</returns>
        public static async Task <int> PostRequestAsync(PostRequestDestination destination, User user = null)
        {
            string link   = string.Empty;
            string result = string.Empty;

            try
            {
                switch (destination)
                {
                case PostRequestDestination.SignIn:
                    link   = "https://planningway.ru/customer/login";
                    result = await BasePostRequestAsync(link, JsonSerialize(user));

                    break;

                case PostRequestDestination.SignInWithToken:
                    link = "https://planningway.ru/customer/login";
                    var res = await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync();

                    if (string.IsNullOrEmpty(res.email) || string.IsNullOrEmpty(res.token))
                    {
                        throw new Exception("File with email and token not fount");
                    }

                    result = await BasePostRequestAsync(link, TokenJsonSerialize(res.email, res.token));

                    break;

                case PostRequestDestination.SignUp:
                    link   = "https://planningway.ru/customer/sign-up";
                    result = await BasePostRequestAsync(link, JsonSerialize(user));

                    break;

                case PostRequestDestination.AccountActivation:
                    link   = "https://planningway.ru/customer/send-activation-key";
                    result = await BasePostRequestAsync(link, JsonSerialize(user));

                    break;

                case PostRequestDestination.PasswordReset:
                    link   = "https://planningway.ru/customer/send-reset-key";
                    result = await BasePostRequestAsync(link, JsonSerialize(user));

                    break;

                default:
                    throw new ArgumentException("Not fount type of sending request PostRequestDestination");
                }

                if (string.IsNullOrEmpty(result))
                {
                    throw new NullReferenceException("Server return null");
                }

                // Json string parsing
                JObject JsonString = JObject.Parse(result);

                int answerCode = (int)JsonString["answer"];
                if ((destination == PostRequestDestination.SignIn || destination == PostRequestDestination.SignInWithToken) && answerCode == 0)
                {
                    string token = (string)JsonString["_csrf"];
                    await FileSystemRequests.SaveUserTokenToFileAsync(token);
                }

                return(answerCode);
            }
            catch (Exception)
            {
                throw;
            }
        }
        /// <summary>
        /// Synchronizing local contacts to server
        /// </summary>
        /// <returns>Result of operation: 0 - synchronization is success, 1 - synchrozination problems</returns>
        public static async Task <int> ContactsSynchronizationRequestAsync()
        {
            int resultOfSynchronization = 1;

            string receivedlink = "https://planningway.ru/contact/synchronization";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            using (MainDatabaseContext db = new MainDatabaseContext())
            {
                #region Create anonymous types for sending to server

                // is_delete - list of local deleted items
                // story_list - list of local elements of the current user and not deleted from the local database

                var contacts = new
                {
                    is_delete  = db.Contacts.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]).Select(i => i.Id).ToList(),
                    story_list = db.Contacts.
                                 Where(i => i.EmailOfOwner == (string)localSettings.Values["email"] && !i.IsDelete).
                                 Select(i => new
                    {
                        create_at = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        id        = i.Id,
                        update_at = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                    }).ToList()
                };

                #endregion

                Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId, contacts })}");
                var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId, contacts }));

                JObject jsonString = JObject.Parse(resultOfRequest);

                Debug.WriteLine($"Получаемые данные \n{jsonString}");

                #region Contacts processing

                #region Adding new to database

                // Get contacts items for adding to local database
                IList <Contact> receivedContacts = new List <Contact>();
                foreach (var result in jsonString["contacts"]["item"].Children().ToList())
                {
                    var searchResult = result.ToObject <Contact>();
                    receivedContacts.Add(searchResult);
                }

                // Add received contacts to local database
                db.Contacts.AddRange(receivedContacts);

                Debug.WriteLine($"Добавляем: {receivedContacts.Count} контактов");

                #endregion

                #region Remove from database

                // Get removed contacts, for removing from local database
                IList <string> removedContacts = new List <string>();
                foreach (var result in jsonString["contacts"]["is_delete"].Children().ToList())
                {
                    removedContacts.Add(result.ToObject <string>());
                }

                // Removing contacts from local database
                foreach (var removedContact in removedContacts)
                {
                    db.Contacts.Remove(db.Contacts.FirstOrDefault(i => i.Id == removedContact));
                }

                Debug.WriteLine($"Удаляем: {removedContacts.Count} контактов");

                #endregion

                #region Seding to server

                // Create sending contacts
                IList <string> sendedContacts = new List <string>();
                foreach (var result in jsonString["contacts"]["requires"].Children().ToList())
                {
                    sendedContacts.Add(result.ToObject <string>());
                }

                Debug.WriteLine($"Отправляемых: {sendedContacts.Count} контактов");

                #endregion

                #endregion

                var sendingData = new
                {
                    contacts = db.Contacts.Join
                               (
                        sendedContacts,
                        i => i.Id,
                        w => w,
                        (i, w) => new
                    {
                        id          = i.Id,
                        email       = i.Email,
                        name        = i.Name,
                        update_at   = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        create_at   = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        personEmail = i.EmailOfOwner
                    }
                               )
                };

                string departureAddress    = "https://planningway.ru/contact/save";
                var    completeSendingData = new
                {
                    _csrf    = token,
                    idDevice = deviceId,
                    contacts = sendingData.contacts
                };

                Debug.WriteLine($"Отправляем данные:\n{JsonSerialize(completeSendingData)}");

                var finalResult = await BasePostRequestAsync(departureAddress, JsonSerialize(completeSendingData));

                jsonString = JObject.Parse(finalResult);
                resultOfSynchronization = (int)jsonString["answer"];

                if (resultOfSynchronization == 0)
                {
                    db.Contacts.RemoveRange(db.Contacts.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]));
                }

                db.SaveChanges();
            }

            return(resultOfSynchronization);
        }
        /// <summary>
        /// Synchronizing local calendars to server
        /// </summary>
        /// <returns>Result of operation: 0 - synchronization is success, 1 - synchrozination problems</returns>
        public static async Task <int> SynchronizationRequestAsync()
        {
            int resultOfSynchronization = 1;

            string receivedlink = "https://planningway.ru/data/synchronization";
            string token        = (await FileSystemRequests.LoadUserEmailAndTokenFromFileAsync()).token;

            ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
            string deviceId = (string)localSettings.Values["DeviceId"];

            using (MainDatabaseContext db = new MainDatabaseContext())
            {
                #region Create anonymous types for sending to server

                // is_delete - list of local deleted items
                // story_list - list of local elements of the current user and not deleted from the local database

                var areas = new
                {
                    is_delete  = db.Areas.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]).Select(i => i.Id).ToList(),
                    story_list = db.Areas.
                                 Where(i => i.EmailOfOwner == (string)localSettings.Values["email"] && !i.IsDelete).
                                 Select(i => new
                    {
                        create_at   = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        id          = i.Id,
                        update_at   = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        personEmail = i.EmailOfOwner
                    }).ToList()
                };

                var projects = new
                {
                    is_delete  = db.Projects.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]).Select(i => i.Id).ToList(),
                    story_list = db.Projects.
                                 Where(i => i.EmailOfOwner == (string)localSettings.Values["email"] && !i.IsDelete).
                                 Select(i => new
                    {
                        create_at = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        id        = i.Id,
                        update_at = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss")
                    }).ToList()
                };

                var events = new
                {
                    is_delete  = db.MapEvents.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]).Select(i => i.Id).ToList(),
                    story_list = db.MapEvents.
                                 Where(i => i.EmailOfOwner == (string)localSettings.Values["email"] && !i.IsDelete).
                                 Select(i => new
                    {
                        create_at = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        id        = i.Id,
                        update_at = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss")
                    }).ToList()
                };

                #endregion

                Debug.WriteLine($"Данные для сверки: {JsonSerialize(new { _csrf = token, idDevice = deviceId, areas, projects, events })}");
                var resultOfRequest = await BasePostRequestAsync(receivedlink, JsonSerialize(new { _csrf = token, idDevice = deviceId, areas, projects, events }));

                JObject jsonString = JObject.Parse(resultOfRequest);

                Debug.WriteLine($"Получаемые данные \n{jsonString}");

                #region Areas processing

                #region Adding new to database

                // Get areas items for adding to local database
                IList <Area> receivedAreas = new List <Area>();
                foreach (var result in jsonString["areas"]["item"].Children().ToList())
                {
                    var searchResult = result.ToObject <Area>();
                    receivedAreas.Add(searchResult);
                }

                // Add received areas to local database
                db.Areas.AddRange(receivedAreas);

                Debug.WriteLine($"Добавляем: {receivedAreas.Count} зон");

                #endregion

                #region Remove from database

                // Get removed areas, for removing from local database
                IList <string> removedAreas = new List <string>();
                foreach (var result in jsonString["areas"]["is_delete"].Children().ToList())
                {
                    removedAreas.Add(result.ToObject <string>());
                }

                // Removing areas from local database
                foreach (var removedArea in removedAreas)
                {
                    db.Areas.Remove(db.Areas.FirstOrDefault(i => i.Id == removedArea));
                }

                Debug.WriteLine($"Удаляем: {removedAreas.Count} зон");

                #endregion

                #region Seding to server

                // Create sending areas
                IList <string> sendedAreas = new List <string>();
                foreach (var result in jsonString["areas"]["requires"].Children().ToList())
                {
                    sendedAreas.Add(result.ToObject <string>());
                }

                Debug.WriteLine($"Отправляемых: {sendedAreas.Count} зон");

                #endregion

                #endregion

                #region Projects processing

                #region Adding new to database

                // Get projects items for adding to local database
                IList <Project> receivedProjects = new List <Project>();
                foreach (var result in jsonString["projects"]["item"].Children().ToList())
                {
                    var searchResult = result.ToObject <Project>();
                    receivedProjects.Add(searchResult);
                }

                // Add received projects to local database
                db.Projects.AddRange(receivedProjects);

                Debug.WriteLine($"Добавляем: {receivedProjects.Count} проектов");

                #endregion

                #region Remove from database

                // Get removed projects, for removing from local database
                IList <string> removedProjects = new List <string>();
                foreach (var result in jsonString["projects"]["is_delete"].Children().ToList())
                {
                    removedProjects.Add(result.ToObject <string>());
                }

                // Removing projects from local database
                foreach (var removedProject in removedProjects)
                {
                    db.Projects.Remove(db.Projects.FirstOrDefault(i => i.Id == removedProject));
                }

                Debug.WriteLine($"Удаляем: {removedProjects.Count} проектов");

                #endregion

                #region Sending to server

                // Create sending projects
                IList <string> sendedProjects = new List <string>();
                foreach (var result in jsonString["projects"]["requires"].Children().ToList())
                {
                    sendedProjects.Add(result.ToObject <string>());
                }

                Debug.WriteLine($"Отправляемых: {sendedProjects.Count} проектов");

                #endregion

                #endregion

                #region MapEvents processing

                #region Adding to database

                // Get map events items for adding to local database
                IList <MapEvent> receivedMapEvents = new List <MapEvent>();
                foreach (var result in jsonString["events"]["item"].Children().ToList())
                {
                    var searchResult = result.ToObject <MapEvent>();
                    receivedMapEvents.Add(searchResult);
                }

                // Add received map events to local database
                db.MapEvents.AddRange(receivedMapEvents);

                Debug.WriteLine($"Добавляем: {receivedMapEvents.Count} событий");

                #endregion

                #region Remove from database

                // Get removed map events, for removing from local database
                IList <string> removedMapEvents = new List <string>();
                foreach (var result in jsonString["events"]["is_delete"].Children().ToList())
                {
                    removedMapEvents.Add(result.ToObject <string>());
                }

                // Removing map events from local database
                foreach (var removedMapEvent in removedMapEvents)
                {
                    db.MapEvents.Remove(db.MapEvents.FirstOrDefault(i => i.Id == removedMapEvent));
                }

                Debug.WriteLine($"Удаляем: {removedMapEvents.Count} событий");

                #endregion

                #region Sending to server

                // Create sending map events
                IList <string> sendedMapEvents = new List <string>();
                foreach (var result in jsonString["events"]["requires"].Children().ToList())
                {
                    sendedMapEvents.Add(result.ToObject <string>());
                }

                Debug.WriteLine($"Отправляемых: {sendedMapEvents.Count} событий");

                #endregion

                #endregion

                var sendingData = new
                {
                    areas = db.Areas.Join
                            (
                        sendedAreas,
                        i => i.Id,
                        w => w,
                        (i, w) => new
                    {
                        id          = i.Id,
                        summary     = i.Name,
                        description = i.Description,
                        color       = i.Color,
                        favourite   = i.Favorite,
                        update_at   = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        create_at   = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        personEmail = i.EmailOfOwner
                    }
                            ),
                    projects = db.Projects.Join
                               (
                        sendedProjects,
                        i => i.Id,
                        w => w,
                        (i, w) => new
                    {
                        id          = i.Id,
                        summary     = i.Name,
                        description = i.Description,
                        color       = i.Color,
                        area_id     = i.AreaId,
                        update_at   = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        create_at   = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        personEmail = i.EmailOfOwner,
                        from        = i.From
                    }
                               ),
                    events = db.MapEvents.Join
                             (
                        sendedMapEvents,
                        i => i.Id,
                        w => w,
                        (i, w) => new
                    {
                        id                 = i.Id,
                        start              = i.Start.ToString("yyyy-MM-dd HH:mm:ss"),
                        end                = i.End.ToString("yyyy-MM-dd HH:mm:ss"),
                        location           = i.Location,
                        summary            = i.Name,
                        description        = i.Description,
                        color              = i.Color,
                        recurrence         = i.EventInterval,
                        project_id         = i.ProjectId,
                        update_at          = i.UpdateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        create_at          = i.CreateAt.Value.ToString("yyyy-MM-dd HH:mm:ss"),
                        projectPersonEmail = i.ProjectOwnerEmail,
                        personEmail        = i.EmailOfOwner,
                        isPublic           = i.IsPublic,
                        timeNotification   = i.NotificationTime.ToString("yyyy-MM-dd HH:mm:ss"),
                        people             = i.UserBind
                    }
                             )
                };

                string departureAddress    = "https://planningway.ru/data/save";
                var    completeSendingData = new
                {
                    _csrf    = token,
                    idDevice = deviceId,
                    areas    = sendingData.areas,
                    projects = sendingData.projects,
                    events   = sendingData.events,
                };

                Debug.WriteLine($"Отправляем данные:\n{JsonSerialize(completeSendingData)}");

                var finalResult = await BasePostRequestAsync(departureAddress, JsonSerialize(completeSendingData));

                jsonString = JObject.Parse(finalResult);
                resultOfSynchronization = (int)jsonString["answer"];


                if (resultOfSynchronization == 0)
                {
                    db.Areas.RemoveRange(db.Areas.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]));
                    db.Projects.RemoveRange(db.Projects.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]));
                    db.MapEvents.RemoveRange(db.MapEvents.Where(i => i.IsDelete && i.EmailOfOwner == (string)localSettings.Values["email"]));
                }

                db.SaveChanges();
            }

            return(resultOfSynchronization);
        }