telegram and instagram wrappers, DtsodFile

Config.cs

@@ -1,57 +1,39 @@
 namespace InstaFollowersOverseer;
 
-public class Config
+public class Config : DtsodFile
 {
-    
+    #nullable disable
-    private const string config_file="config.dtsod";
-    private const string config_example_file="config-example.dtsod";
-    
     public string botToken;
     public string instagramLogin;
     public string instagramPassword;
+    #nullable enable
 
-    public Config(DtsodV23 configDtsod)
+    public Config(string fileNameWithoutExt) : base(fileNameWithoutExt) { }
+    
+    public override void LoadFromFile()
     {
-        botToken = configDtsod[nameof(botToken)];
+        var dtsod = ReadDtsodFromFile(true);
-        instagramLogin = configDtsod[nameof(instagramLogin)];
+        try
-        instagramPassword = configDtsod[nameof(instagramPassword)];
-    }
-
-    public static Config ReadFromFile()
-    {
-        if (!File.Exists(config_file))
         {
-            EmbeddedResources.CopyToFile(
+            botToken = dtsod[nameof(botToken)];
-                $"{EmbeddedResourcesPrefix}.{config_example_file}", 
+            instagramLogin = dtsod[nameof(instagramLogin)];
-                config_example_file);
+            instagramPassword = dtsod[nameof(instagramPassword)];
-            throw new Exception($"File {config_file} doesnt exist. You have create config. See {config_example_file}");
+        }
+        catch (Exception ex)
+        {
+            throw new Exception($"your {FileName} format is invalid\n"
+                                + $"See {FileExampleName}", innerException: ex);
         }
-
-        return new Config(new DtsodV23(File.ReadAllText(config_file)));
     }
 
-    public DtsodV23 ToDtsod()
+    public override DtsodV23 ToDtsod()
     {
         var d = new DtsodV23
         {
             { nameof(botToken), botToken },
             { nameof(instagramLogin), instagramLogin },
-            { nameof(instagramLogin), instagramLogin }
+            { nameof(instagramPassword), instagramPassword }
         };
         return d;
     }
-    
-    public override string ToString() => ToDtsod().ToString();
-    
-    public void SaveToFile()
-    {
-        File.Copy(config_file, 
-            $"backups/{config_file}.old-"+
-            "{DateTime.Now.ToString(MyTimeFormat.ForFileNames)}", 
-            true);
-        
-        File.OpenWrite(config_file)
-            .FluentWriteString("#DtsodV23\n")
-            .WriteString(ToDtsod().ToString());
-    }
 }

DtsodFile.cs

@@ -0,0 +1,64 @@
+using System.IO;
+
+namespace InstaFollowersOverseer;
+
+public abstract class DtsodFile
+{
+    public readonly string FileNameWithoutExt;
+    public readonly string FileName;
+    public readonly string FileExampleName;
+
+    public DtsodFile(string fileNameWithoutExt)
+    {
+        FileNameWithoutExt = fileNameWithoutExt;
+        FileName = fileNameWithoutExt + ".dtsod";
+        FileExampleName = fileNameWithoutExt + "-example.dtsod";
+    }
+    
+    public void CreateBackup()
+    {
+        string backupPath=$"backups/{FileNameWithoutExt}.d/{FileNameWithoutExt}"
+                          +DateTime.Now.ToString(MyTimeFormat.ForFileNames)+".dtsod";
+        Program.MainLogger.LogInfo($"creating backup if file {FileName} at path {backupPath}");
+        File.Copy(FileName,backupPath,false);
+    }
+    
+    public DtsodV23 ReadDtsodFromFile(bool trhowIfFileNotFound)
+    {
+        Program.MainLogger.LogInfo($"reading file {FileName}");
+        EmbeddedResources.CopyToFile(
+            $"{EmbeddedResourcesPrefix}.{FileExampleName}",
+            FileExampleName);
+
+        if (!File.Exists(FileName))
+        {
+            File.WriteAllText(FileName, "#DtsodV23\n");
+            string message = $"file {FileName} doesnt exist, created new blank";
+            if (trhowIfFileNotFound) 
+                throw new FileNotFoundException(message);
+            Program.MainLogger.LogWarn(message);
+            return new DtsodV23();
+        }
+
+        string fileText = File.ReadAllText(FileName);
+        Program.MainLogger.LogDebug(fileText);
+        return new DtsodV23(fileText);
+    }
+
+    public abstract void LoadFromFile();
+    
+    public abstract DtsodV23 ToDtsod();
+    
+    public void SaveToFile()
+    {
+        Program.MainLogger.LogInfo($"saving file {FileName}");
+        string dtsodStr = ToDtsod().ToString();
+        Program.MainLogger.LogDebug(dtsodStr);
+        if(File.Exists(FileName))
+            CreateBackup();
+        File.OpenWrite(FileName)
+            .FluentWriteString("#DtsodV23\n")
+            .FluentWriteString(dtsodStr)
+            .Close();
+    }
+}

InstaFollowersOverseer.csproj

@@ -1,17 +1,29 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
     <PropertyGroup>
+        <!--project info-->
+        <Authors>Timerix</Authors>
+        <Description>Telegram bot that notifies users when somebody follows/unfollows theit instagram accounts</Description>
+        <RepositoryType>GIT</RepositoryType>
+        <RepositoryUrl>https://github.com/Timerix22/InstaFollowersOverseer</RepositoryUrl>
+        <PackageLicenseExpression>MIT</PackageLicenseExpression>
+        <!--compilation properties-->
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+        <DebugType>embedded</DebugType>
+        <!--language features-->
+        <LangVersion>preview</LangVersion>
         <ImplicitUsings>disable</ImplicitUsings>
         <Nullable>enable</Nullable>
-        <LangVersion>preview</LangVersion>
     </PropertyGroup>
     
+    <!--third-party dependencies-->
     <ItemGroup>
+      <PackageReference Include="InstaSharper" Version="1.4.82" />
       <PackageReference Include="Telegram.Bot" Version="18.0.0" />
-      <PackageReference Include="Telegram.Bots.Extensions.Polling" Version="5.9.0" />
+      <!--PackageReference Include="Telegram.Bots.Extensions.Polling" Version="5.9.0" /-->
     </ItemGroup>
+    
+    <!--dtlib dependencies-->
     <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
         <ProjectReference Include="..\DTLib\DTLib.Logging\DTLib.Logging.csproj" />
         <ProjectReference Include="..\DTLib\DTLib.Dtsod\DTLib.Dtsod.csproj" />
@@ -25,6 +37,6 @@
     <ItemGroup>
       <None Remove="resources\**\*" />
       <EmbeddedResource Include="resources\**\*" />
+      <None Remove=".gitignore" />
     </ItemGroup>
-
 </Project>

InstaFollowersOverseer.sln.DotSettings.user

@@ -0,0 +1,3 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeInspection/Highlighting/SweaWarningsMode/@EntryValue">ShowAndRun</s:String>
+</wpf:ResourceDictionary>

Instagram/InstagramApiLogger.cs

@@ -0,0 +1,37 @@
+using System.Net.Http;
+using InstaSharper.Logger;
+
+namespace InstaFollowersOverseer.Instagram;
+
+public class InstagramApiLogger : IInstaLogger
+{
+    public ContextLogger _logger = new("api", InstagramWrapper.InstagramLogger);
+    
+    public void LogRequest(HttpRequestMessage r)
+    {
+        _logger.LogDebug("http",$"request {r.Method.Method.ToUpper()} from {r.RequestUri}:\n"
+            + r.Content?.ReadAsStringAsync().GetAwaiter().GetResult());
+    }
+
+    public void LogRequest(Uri uri)
+    {
+        
+    }
+
+    public void LogResponse(HttpResponseMessage r)
+    {
+        _logger.LogDebug("http",$"responce from " +
+            (r.RequestMessage!=null && r.RequestMessage.RequestUri!=null ? r.RequestMessage.RequestUri.ToString() : "unknown")
+            + $" :\n "+ r.Content.ReadAsStringAsync().GetAwaiter().GetResult());
+    }
+
+    public void LogException(Exception ex)
+    {
+        _logger.LogError(ex);
+    }
+
+    public void LogInfo(string info)
+    {
+        _logger.LogInfo(info);
+    }
+}

Instagram/InstagramWrapper.cs

@@ -0,0 +1,58 @@
+using InstaSharper.API;
+using InstaSharper.API.Builder;
+using InstaSharper.Classes;
+using InstaSharper.Classes.Models;
+
+namespace InstaFollowersOverseer.Instagram;
+
+public static class InstagramWrapper
+{
+    public static ContextLogger InstagramLogger = new("instagram",ParentLogger);
+    private static IInstaApi Api=null!;
+    
+    public static async void Init()
+    {
+        try
+        {
+            InstagramLogger.LogInfo("initializing instagram wrapper");
+            if (CurrentConfig is null)
+                throw new NullReferenceException("config is null");
+            var apiLogger = new InstagramApiLogger();
+            // disabling http request/responce logging
+            apiLogger._logger.DebugLogEnabled = false;
+            Api = InstaApiBuilder.CreateBuilder()
+                .UseLogger(apiLogger)
+                .SetUser(new UserSessionData
+                {
+                    UserName = CurrentConfig.instagramLogin,
+                    Password = CurrentConfig.instagramPassword
+                })
+                .SetRequestDelay(RequestDelay.FromSeconds(0, 1))
+                .Build();
+            InstagramLogger.LogInfo("instagram login starting");
+            var rezult= await Api.LoginAsync();
+            if (!rezult.Succeeded)
+                throw new Exception("login exception:\n" + rezult.Info + '\n' + rezult.Value);
+            InstagramLogger.LogInfo("instagram wrapper have initialized and connected successfully");
+        }
+        catch (OperationCanceledException) {}
+        catch (Exception ex)
+        {
+            InstagramLogger.LogError("init", ex);
+            Program.Stop();
+        }
+    }
+
+    public static async Task<InstaUser?> GetUserAsync(string usernameOrUrl)
+    {
+        // url
+        if (usernameOrUrl.Contains('/'))
+        {
+            throw new NotImplementedException("get user by url");
+        }
+        
+        // username
+        var u=await Api.GetUserAsync(usernameOrUrl);
+        return u.Succeeded ? u.Value : null;
+    }
+}

Program.cs

@@ -2,6 +2,7 @@
 global using System.Threading.Tasks;
 global using System.Linq;
 global using System.Collections.Generic;
+global using DTLib;
 global using DTLib.Filesystem;
 global using DTLib.Extensions;
 global using DTLib.Dtsod;
@@ -10,18 +11,20 @@ global using File = DTLib.Filesystem.File;
 global using Directory = DTLib.Filesystem.Directory;
 global using Path = DTLib.Filesystem.Path;
 global using static InstaFollowersOverseer.SharedData;
-using System.Net.Http;
 using System.Text;
 using System.Threading;
-using Telegram.Bot;
-using Telegram.Bot.Polling;
-using Telegram.Bot.Types;
-using Telegram.Bot.Types.Enums;
 
 namespace InstaFollowersOverseer;
 
 static class Program
 {
+    public static readonly ContextLogger MainLogger = new("main", ParentLogger);
+    
+    private static CancellationTokenSource MainCancel=new();
+    public static CancellationToken MainCancelToken = MainCancel.Token;
+    public static void Stop() => MainCancel.Cancel();
+
+    
     static void Main()
     {
         Console.InputEncoding=Encoding.UTF8;
@@ -29,90 +32,31 @@ static class Program
         DTLibInternalLogging.SetLogger(MainLogger.ParentLogger);
         try
         {
-            config = Config.ReadFromFile();
+            MainLogger.LogInfo("reading config");
-            userSettings = UserSettings.ReadFromFile();
+            CurrentConfig.LoadFromFile();
+            CurrentUsersData.LoadFromFile();
             
-            CancellationTokenSource mainCancel = new CancellationTokenSource();
             Console.CancelKeyPress += (_, e) =>
             {
-                mainCancel.Cancel();
+                Stop();
                 Thread.Sleep(1000);
                 MainLogger.LogInfo("all have cancelled");
                 e.Cancel = false;
             };
 
-            var bot = new TelegramBotClient(config.botToken, new HttpClient());
+            Instagram.InstagramWrapper.Init();
-            var receiverOptions = new ReceiverOptions
+            Telegram.TelegramWrapper.Init();
-            {
-                AllowedUpdates = { }, // receive all update types
 
-            };
+            Task.Delay(-1, MainCancel.Token).GetAwaiter().GetResult();
-            bot.StartReceiving(BotApiUpdateHandler, BotApiExceptionHandler, receiverOptions, mainCancel.Token);
-
-            Task.Delay(-1, mainCancel.Token).GetAwaiter().GetResult();
             Thread.Sleep(1000);
         }
+        catch (OperationCanceledException) {}
         catch (Exception ex)
         {
             MainLogger.LogError(ex);
         }
+        CurrentConfig.SaveToFile();
+        CurrentUsersData.SaveToFile();
         Console.ResetColor();
     }
-
-    private static ContextLogger botLogger = new ContextLogger("bot", MainLogger.ParentLogger);
-    
-    static async Task BotApiUpdateHandler(ITelegramBotClient bot, Update update, CancellationToken cls)
-    {
-        try
-        {
-            switch (update.Type)
-            {
-                case UpdateType.Message:
-                {
-                    var message = update.Message!;
-                    if (message.Text!.StartsWith('/'))
-                    {
-                        botLogger.LogInfo($"user {message.Chat.Id} sent command {message.Text}");
-                        var spl = message.Text.SplitToList(' ');
-                        string command = spl[0].Substring(1);
-                        spl.RemoveAt(0);
-                        string[] args = spl.ToArray();
-                        switch (command)
-                        {
-                            case "start":
-                                await bot.SendTextMessageAsync(message.Chat, "hi");
-                                break;
-                            case "oversee":
-                                break;
-                            // default:
-                            // throw new BotCommandException(command, args);
-                        }
-                    }
-                    else botLogger.LogDebug($"message recieved: {message.Text}");
-
-                    break;
-                } /*
-            case UpdateType.EditedMessage:
-                break;
-            case UpdateType.InlineQuery:
-                break;
-            case UpdateType.ChosenInlineResult:
-                break;
-            case UpdateType.CallbackQuery:
-                break;*/
-                default:
-                    botLogger.LogWarn($"unknown update type: {update.Type}");
-                    break;
-            }
-        }
-        catch (Exception ex)
-        {
-            botLogger.LogWarn("UpdateHandler", ex);
-        }
-    }
-    static Task BotApiExceptionHandler(ITelegramBotClient bot, Exception ex, CancellationToken cls)
-    {
-        botLogger.LogError(ex);
-        return Task.CompletedTask;
-    }
 }

SharedData.cs

@@ -4,13 +4,10 @@ public static class SharedData
 {
     internal const string EmbeddedResourcesPrefix = "InstaFollowersOverseer.resources";
     
-#nullable disable
+    internal static Config CurrentConfig = new("config");
-    internal static Config config;
+    internal static UsersData CurrentUsersData = new("users-data");
-    internal static UserSettings userSettings;
+
-#nullable enable
+    public static readonly CompositeLogger ParentLogger = new(
-    
+        new ConsoleLogger(),
-    public static readonly ContextLogger MainLogger = new ContextLogger("main",new CompositeLogger(
+        new FileLogger("logs", "InstaFollowersOverseer"));
-            new ConsoleLogger(),
-            new FileLogger("logs","InstaFollowersOverseer"))
-        );
 }

Telegram/TelegramWrapper.cs

@@ -0,0 +1,134 @@
+using System.Net.Http;
+using System.Threading;
+using Telegram.Bot;
+using Telegram.Bot.Polling;
+using Telegram.Bot.Types;
+using Telegram.Bot.Types.Enums;
+using InstaFollowersOverseer.Instagram;
+
+namespace InstaFollowersOverseer.Telegram;
+
+public static class TelegramWrapper
+{
+    private static ContextLogger TelegramLogger = new("telegram", ParentLogger);
+    private static TelegramBotClient Bot=null!;
+
+    public static async void Init()
+    {
+        try
+        {
+            TelegramLogger.LogInfo("initializing telegram wrapper");
+            if (CurrentConfig is null)
+                throw new NullReferenceException("config is null");
+            Bot = new TelegramBotClient(CurrentConfig.botToken, new HttpClient());
+            await Bot.SetMyCommandsAsync(new BotCommand[]
+            {
+                new() { Command = "start", Description = "starts the bot"},
+               // new() { Command = "help", Description = "shows commands list" },
+                new() { Command = "oversee", Description = "[instagram username] - " + 
+                                "enables notifications about instagram user's followers" },
+                new() { Command = "list", Description = "shows list of overseeing instagram users" }
+            });
+            var receiverOptions = new ReceiverOptions
+            {
+                // AllowedUpdates = { }, // receive all update types
+            };
+            TelegramLogger.LogInfo("bot starting recieving long polls");
+            Bot.StartReceiving(BotApiUpdateHandler, BotApiExceptionHandler, receiverOptions, Program.MainCancelToken);
+            TelegramLogger.LogInfo("telegram wrapper have initialized successfully");
+        }
+        catch (OperationCanceledException) {}
+        catch (Exception ex)
+        {
+            TelegramLogger.LogError("init", ex);
+            Program.Stop();
+        }
+    }
+
+    private static Task BotApiExceptionHandler(ITelegramBotClient bot, Exception ex, CancellationToken cls)
+    {
+        TelegramLogger.LogError(ex);
+        return Task.CompletedTask;
+    }
+
+    static async Task SendInfoReply(string text, Message replyToMessage)
+    {
+        TelegramLogger.LogInfo(text);
+        await Bot.SendTextMessageAsync(replyToMessage.Chat, text, 
+            replyToMessageId: replyToMessage.MessageId, 
+            parseMode:ParseMode.MarkdownV2);
+    }
+    static async Task SendErrorReply(string text, Message replyToMessage)
+    {
+        TelegramLogger.LogWarn(text);
+        await Bot.SendTextMessageAsync(replyToMessage.Chat, "error: "+text, 
+            replyToMessageId: replyToMessage.MessageId, 
+            parseMode:ParseMode.MarkdownV2);
+    }
+    
+    private static async Task BotApiUpdateHandler(ITelegramBotClient bot, Update update, CancellationToken cls)
+    {
+        try
+        {
+            switch (update.Type)
+            {
+                case UpdateType.Message:
+                {
+                    var message = update.Message!;
+                    if (message.Text!.StartsWith('/'))
+                    {
+                        TelegramLogger.LogInfo($"user {message.Chat.Id} sent command {message.Text}");
+                        var spl = message.Text.SplitToList(' ');
+                        string command = spl[0].Substring(1);
+                        spl.RemoveAt(0);
+                        string[] args = spl.ToArray();
+                        await ExecCommandAsync(command, args, message);
+                    }
+                    else TelegramLogger.LogDebug($"message recieved: {message.Text}");
+                    break;
+                } 
+            /*case UpdateType.InlineQuery:
+                break;
+            case UpdateType.ChosenInlineResult:
+                break;
+            case UpdateType.CallbackQuery:
+                break;*/
+                default:
+                    TelegramLogger.LogWarn($"unknown update type: {update.Type}");
+                    break;
+            }
+        }
+        catch (OperationCanceledException) {}
+        catch (Exception ex)
+        {
+            TelegramLogger.LogWarn("UpdateHandler", ex);
+        }
+    }
+
+    private static async Task ExecCommandAsync(string command, string[] args, Message message)
+    {
+        switch (command)
+        {
+            case "start":
+                await Bot.SendTextMessageAsync(message.Chat, "hi");
+                break;
+            case "oversee":
+            {
+                string usernameOrUrl = args[0];
+                await SendInfoReply($"searching for instagram user <{usernameOrUrl}>", message);
+                var user = await InstagramWrapper.GetUserAsync(usernameOrUrl);
+                if (user is null)
+                {
+                    await SendErrorReply($"user **{usernameOrUrl}** doesnt exist", message);
+                    return;
+                }
+                CurrentUsersData.AddOrSet(message.Chat.Id.ToString(), new InstagramObservableParams(usernameOrUrl));
+                CurrentUsersData.SaveToFile();
+                break;
+            }
+            default:
+                await SendErrorReply("ivalid command", message);
+                break;
+        }
+    }
+}

UserSettings.cs

@@ -1,114 +0,0 @@
-namespace InstaFollowersOverseer;
-
-public class UserSettings
-{
-    private const string user_settings_file="user-settings.dtsod";
-    private const string user_settings_example_file="user-settings-example.dtsod";
-    
-    private Dictionary<string, List<InstagramObservableParams>> userSettings=new();
-
-    private UserSettings()
-    {
-        
-    }
-    
-    public UserSettings(DtsodV23 _userSettings)
-    {
-        try
-        {
-            foreach (var uset in _userSettings)
-            {
-                string telegramUserId = uset.Key;
-
-                List<InstagramObservableParams> oparams = new List<InstagramObservableParams>();
-                foreach (DtsodV23 _overseeParams in uset.Value)
-                    oparams.Add(new InstagramObservableParams(_overseeParams));
-
-                userSettings.Add(telegramUserId, oparams);
-            }
-        }
-        catch (Exception ex)
-        {
-            throw new Exception($"your {user_settings_file} format is invalid\n"
-                                + $"See {user_settings_example_file}", innerException:ex);
-        }
-    }
-
-    public static UserSettings ReadFromFile()
-    {
-        EmbeddedResources.CopyToFile(
-            $"{EmbeddedResourcesPrefix}.{user_settings_example_file}",
-            user_settings_example_file);
-        
-        if (File.Exists(user_settings_file))
-            return new UserSettings(new DtsodV23(File.ReadAllText(user_settings_file)));
-
-        MainLogger.LogWarn($"file {user_settings_file} doesnt exist, creating new");
-        File.WriteAllText(user_settings_file,"#DtsodV23\n");
-        return new UserSettings();
-    }
-
-    public DtsodV23 ToDtsod()
-    {
-        var b = new DtsodV23();
-        foreach (var userS in userSettings) 
-            b.Add(userS.Key, 
-                userS.Value.Select(iop =>
-                    iop.ToDtsod()
-                ).ToList());
-        return b;
-    }
-
-    public override string ToString() => ToDtsod().ToString();
-
-    public void SaveToFile()
-    {
-        File.Copy(user_settings_file, 
-            $"backups/{user_settings_file}.old-"+
-                "{DateTime.Now.ToString(MyTimeFormat.ForFileNames)}", 
-            true);
-        
-        File.OpenWrite(user_settings_file)
-            .FluentWriteString("#DtsodV23\n")
-            .WriteString(ToDtsod().ToString());
-    }
-    
-    public List<InstagramObservableParams> Get(string telegramUserId)
-    {
-        if (!userSettings.TryGetValue(telegramUserId, out var overseeParams))
-            throw new Exception($"there is no settings for user {telegramUserId}");
-        return overseeParams;
-    }
-
-    public void AddOrSet(string telegramUserId, InstagramObservableParams instagramObservableParams)
-    {
-        // Add
-        // doesnt contain settings for telegramUserId
-        if (!userSettings.TryGetValue(telegramUserId, out var thisUserSettings))
-        {
-            userSettings.Add(telegramUserId, new (){ instagramObservableParams });
-            return;
-        }
-
-        // Set
-        // settings for telegramUserId contain InstagramObservableParams with instagramObservableParams.instagramUserId
-        for (var i = 0; i < thisUserSettings.Count; i++)
-        {
-            if (thisUserSettings[i].instagramUserId == instagramObservableParams.instagramUserId)
-            {
-                thisUserSettings[i] = instagramObservableParams;
-                return;
-            }
-        }
-        
-        // Add
-        // doesnt contain InstagramObservableParams with instagramObservableParams.instagramUserId
-        thisUserSettings.Add(instagramObservableParams);
-    }
-
-    public void AddOrSet(string telegramUserId, IEnumerable<InstagramObservableParams> instagramObservableParams)
-    {
-        foreach (var p in instagramObservableParams) 
-            AddOrSet(telegramUserId, p);
-    }
-}

UsersData.cs

@@ -0,0 +1,81 @@
+namespace InstaFollowersOverseer;
+
+public class UsersData : DtsodFile
+{
+    private Dictionary<string, List<InstagramObservableParams>> usersData=new();
+    
+    public UsersData(string fileName) : base(fileName) {}
+    
+    public override void LoadFromFile()
+    {
+        var dtsod=ReadDtsodFromFile(false);
+        try
+        {
+            foreach (var uset in dtsod)
+            {
+                string telegramUserId = uset.Key;
+
+                List<InstagramObservableParams> oparams = new();
+                foreach (DtsodV23 _overseeParams in uset.Value)
+                    oparams.Add(new InstagramObservableParams(_overseeParams));
+
+                usersData.Add(telegramUserId, oparams);
+            }
+        }
+        catch (Exception ex)
+        {
+            throw new Exception($"your {FileName} format is invalid\n"
+                                + $"See {FileExampleName}", innerException: ex);
+        }
+    }
+    
+    public override DtsodV23 ToDtsod()
+    {
+        var b = new DtsodV23();
+        foreach (var userS in usersData) 
+            b.Add(userS.Key, 
+                userS.Value.Select<InstagramObservableParams, DtsodV23>(iop =>
+                    iop.ToDtsod()
+                ).ToList());
+        return b;
+    }
+
+    public List<InstagramObservableParams> Get(string telegramUserId)
+    {
+        if (!usersData.TryGetValue(telegramUserId, out var overseeParams))
+            throw new Exception($"there is no settings for user {telegramUserId}");
+        return overseeParams;
+    }
+
+    public void AddOrSet(string telegramUserId, InstagramObservableParams instagramObservableParams)
+    {
+        // Add
+        // doesnt contain settings for telegramUserId
+        if (!usersData.TryGetValue(telegramUserId, out var thisUsersData))
+        {
+            usersData.Add(telegramUserId, new (){ instagramObservableParams });
+            return;
+        }
+
+        // Set
+        // settings for telegramUserId contain InstagramObservableParams with instagramObservableParams.instagramUserId
+        for (var i = 0; i < thisUsersData.Count; i++)
+        {
+            if (thisUsersData[i].instagramUserId == instagramObservableParams.instagramUserId)
+            {
+                thisUsersData[i] = instagramObservableParams;
+                return;
+            }
+        }
+        
+        // Add
+        // doesnt contain InstagramObservableParams with instagramObservableParams.instagramUserId
+        thisUsersData.Add(instagramObservableParams);
+    }
+
+    public void AddOrSet(string telegramUserId, IEnumerable<InstagramObservableParams> instagramObservableParams)
+    {
+        foreach (var p in instagramObservableParams) 
+            AddOrSet(telegramUserId, p);
+    }
+}