[core] Massive setting system update

- Get rid of attribute crap. Now only interface is required
- Rename canUse to isAdmin in `Bot.IsUserAdminAsync` to match the actual meaning of variable
- Made `AnswerQuery` reusable by moving it from ContentStore to Core's CommonHandler
- Chat Settings edit frontend (inline keyboard)
- Rename NsfwOption to AllowNsfw and move it to ContentStore module
- Remove option backend testing commands
- Add KarmaMode option as an example of Select option type

Core/Data/ChatOptionValue.cs

@@ -1,6 +1,4 @@
-#nullable enable
-
-using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
 using System.Text.Json.Serialization;
 using System.Text.Json;
 using System;
@@ -15,7 +13,7 @@ public class ChatOptionValue
     public byte[] Value { get; set; }
 
 
-    public T GetValue<T>(T? defVal = default)
+    public T GetValue<T>(T defVal = default)
     {
         try
         {

Core/Extensions/BotExtension.cs

@@ -22,14 +22,14 @@ namespace Kruzya.TelegramBot.Core.Extensions
         public static async Task<bool> IsUserAdminAsync(this ITelegramBotClient bot, Chat chat, User user)
         {
             var callerMember = await bot.GetChatMemberAsync(chat, user.Id);
-            var canUse = callerMember is ChatMemberOwner;
+            var isAdmin = callerMember is ChatMemberOwner;
 
             if (callerMember is ChatMemberAdministrator callerAdmin)
             {
-                canUse = callerAdmin.CanRestrictMembers;
+                isAdmin = callerAdmin.CanRestrictMembers;
             }
 
-            return canUse;
+            return isAdmin;
         }
 
         public static async Task<bool> CanDeleteMessagesAsync(this ITelegramBotClient bot, Chat chat)

Core/Handler/CommonHandler.cs

@@ -53,5 +53,10 @@ namespace Kruzya.TelegramBot.Core.Handler
         {
             return await Db.UserValues.FindOrCreateOption(Chat.Id, user.Id, "warnCount");
         }
+
+        protected async Task AnswerQuery(string id, string? message = null)
+        {
+            await Bot.AnswerCallbackQueryAsync(id, message);
+        }
     }
 }

Core/Handler/SettingsHandler.cs

@@ -0,0 +1,184 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BotFramework.Attributes;
+using BotFramework.Enums;
+using Kruzya.TelegramBot.Core.Data;
+using Kruzya.TelegramBot.Core.Extensions;
+using Kruzya.TelegramBot.Core.Options;
+using Microsoft.Extensions.DependencyInjection;
+using Telegram.Bot;
+using Telegram.Bot.Types;
+using Telegram.Bot.Types.ReplyMarkups;
+
+namespace Kruzya.TelegramBot.Core.Handler;
+
+public class SettingsHandler : CommonHandler
+{
+    private readonly IEnumerable<IOption> _options;
+
+    public SettingsHandler(CoreContext db, IServiceProvider serviceProvider) : base(db)
+    {
+        _options = serviceProvider.GetServices<IOption>();
+    }
+
+    [Command(InChat.Public, "settings", CommandParseMode.WithUsername)]
+    public async Task HandleSettings()
+    {
+        if (!await Bot.IsUserAdminAsync(Chat, From))
+        {
+            return;
+        }
+        
+        await Bot.SendTextMessageAsync(
+            Chat.Id, 
+            "What do you want to change?", 
+            replyMarkup: GetSettingsMarkup()
+        );
+    }
+
+    [Update(InChat.Public, UpdateFlag.CallbackQuery)]
+    public async Task HandleCallback()
+    {
+        var query = CallbackQuery;
+        var queryData = query.Data;
+
+        if (queryData == null || !queryData.StartsWith("option") || !await Bot.IsUserAdminAsync(Chat, From))
+        {
+            return;
+        }
+
+        var paramList = queryData.Split('|');
+        if (!long.TryParse(paramList[1], out var senderId))
+        {
+            return;
+        }
+
+        if (senderId != From.Id)
+        {
+            await AnswerQuery(query.Id, "Keyboard called by another user");
+            return;
+        }
+
+        if (paramList[2] == "main_menu")
+        {
+            await AnswerQuery(query.Id);
+            await Bot.EditMessageTextAsync(Chat.Id, query.Message!.MessageId, "What do you want to change?",
+                replyMarkup: GetSettingsMarkup());
+            return;
+        }
+
+        if (paramList[2] == "edit" || paramList[2] == "select")
+        {
+            var option = GetOptionById(paramList[3]);
+            if (option == null)
+            {
+                await AnswerQuery(query.Id, "Invalid option ID");
+                return;
+            }
+
+            switch (paramList[2])
+            {
+                case "edit":
+                    await HandleOptionEdit(option, paramList, query);
+                    break;
+                case "select":
+                    await HandleOptionSelect(option, paramList, query);
+                    break;
+            }
+        }
+    }
+
+    private async Task HandleOptionEdit(IOption option, string[] paramList, CallbackQuery query)
+    {
+        var chatId = Chat.Id;
+        var messageId = query.Message!.MessageId;
+        switch (option.OptionType)
+        {
+            case OptionType.OnOff:
+                var onOffOpt = (IOption<bool>) option;
+                await onOffOpt.SetValueAsync(chatId, !await onOffOpt.GetValueAsync(chatId));
+                await AnswerQuery(query.Id);
+                
+                await Bot.EditMessageReplyMarkupAsync(chatId, messageId, GetSettingsMarkup());
+                break;
+
+            case OptionType.Select:
+                var selectOpt = (IOption<string>) option;
+                await AnswerQuery(query.Id);
+                
+                await Bot.EditMessageTextAsync(Chat.Id, messageId, "Here's what you can choose:", 
+                    replyMarkup: await GetChoiceSelectKeyboard(selectOpt));
+                break;
+
+            default:
+                await AnswerQuery(query.Id, "Not implemented");
+                break;
+        }
+    }
+
+    private async Task HandleOptionSelect(IOption option, string[] paramList, CallbackQuery query)
+    {
+        var choice = option.ChoiceList.SingleOrDefault(x => x.Id == paramList[4]);
+        if (choice == null)
+        {
+            await AnswerQuery(query.Id, "Invalid option choice");
+            return;
+        }
+
+        var selectOption = (IOption<string>) option;
+        await selectOption.SetValueAsync(Chat.Id, choice.Id);
+        await AnswerQuery(query.Id);
+
+        await Bot.EditMessageReplyMarkupAsync(Chat.Id, query.Message!.MessageId, await GetChoiceSelectKeyboard(selectOption));
+    }
+
+    private async Task<InlineKeyboardButton> GetKeyboardButton(IOption option)
+    {
+        var button = new InlineKeyboardButton(option.OptionName)
+        {
+            CallbackData = $"option|{From.Id}|edit|{option.OptionId}"
+        };
+
+        if (option.OptionType == OptionType.OnOff)
+        {
+            var isEnabled = await ((IOption<bool>) option).GetValueAsync(Chat.Id);
+            button.Text += isEnabled ? " 🟢" : " 🔴";
+        }
+
+        return button;
+    }
+
+    private async Task<InlineKeyboardMarkup> GetChoiceSelectKeyboard(IOption<string> option)
+    {
+        var value = await option.GetValueAsync(Chat.Id);
+        var choices = option.ChoiceList.Select(x => x.ToButton(From.Id, option.OptionId, x.Id == value))
+            .ToList();
+
+        choices.Add(new []
+        {
+            new InlineKeyboardButton("Main menu")
+            {
+                CallbackData = $"option|{From.Id}|main_menu"
+            }
+        });
+
+        return new InlineKeyboardMarkup(choices);
+    }
+
+    private InlineKeyboardMarkup GetSettingsMarkup()
+    {
+        var keyboardLayout = _options.ToAsyncEnumerable()
+            .SelectAwait(async x => await GetKeyboardButton(x))
+            .ToEnumerable()
+            .Chunk(3);
+
+        return new InlineKeyboardMarkup(keyboardLayout);
+    }
+    
+    private IOption GetOptionById(string optionId)
+    {
+        return _options.SingleOrDefault(x => x.OptionId == optionId);
+    }
+}

Core/Options/AbstractOption.cs

@@ -1,4 +1,4 @@
-using System.Runtime.Serialization;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 
 namespace Kruzya.TelegramBot.Core.Options;
@@ -6,6 +6,12 @@ namespace Kruzya.TelegramBot.Core.Options;
 public abstract class AbstractOption<TOption, TValue> : IOption<TValue> 
     where TOption: AbstractOption<TOption, TValue>
 {
+    public abstract string OptionId { get; }
+    public abstract string OptionName { get; }
+    public abstract OptionType OptionType { get; }
+    public abstract TValue DefaultValue { get; }
+    public List<SelectChoice> ChoiceList { get; } = new();
+
     private readonly IOptionProvider _optionProvider;
 
     protected AbstractOption(IOptionProvider optionProvider)
@@ -15,11 +21,11 @@ public abstract class AbstractOption<TOption, TValue> : IOption<TValue>
     
     public async Task<TValue> GetValueAsync(long chatId)
     {
-        return await _optionProvider.GetValueAsync<TOption, TValue>(chatId);
+        return await _optionProvider.GetValueAsync(chatId, OptionId, DefaultValue);
     }
 
     public async Task SetValueAsync(long chatId, TValue value)
     {
-        await _optionProvider.SetValueAsync<TOption, TValue>(chatId, value);
+        await _optionProvider.SetValueAsync(chatId, OptionId, value);
     }
 }

Core/Options/DbOptionProvider.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Reflection;
-using System.Threading.Tasks;
+using System.Threading.Tasks;
 using Kruzya.TelegramBot.Core.Data;
 using Kruzya.TelegramBot.Core.Extensions;
 
@@ -14,46 +12,16 @@ public class DbOptionProvider : IOptionProvider
     {
         _db = db;
     }
-
-    public async Task<TValue> GetValueAsync<TOption, TValue>(long chatId)
-    {
-        return await GetValueAsync(
-            chatId, 
-            GetOptionId<TOption>(), 
-            GetDefaultValue<TOption, TValue>()
-        );
-    }
-
+    
     public async Task<TValue> GetValueAsync<TValue>(long chatId, string optionId, TValue defVal)
     {
         return (await _db.ChatOptionValues.FindOrCreateOption(chatId, optionId)).GetValue(defVal);
     }
 
-    public async Task SetValueAsync<TOption, TValue>(long chatId, TValue value)
+    public async Task SetValueAsync<TValue>(long chatId, string optionId, TValue value)
     {
-        var chatOption = await _db.ChatOptionValues.FindOrCreateOption(chatId, GetOptionId<TOption>());
+        var chatOption = await _db.ChatOptionValues.FindOrCreateOption(chatId, optionId);
         chatOption.SetValue(value);
         _db.AddOrUpdate(chatOption);
     }
-
-    protected OptionAttribute GetOptionAttribute<TOption>()
-    {
-        return typeof(TOption).GetCustomAttribute<OptionAttribute>();
-    }
-
-    protected string GetOptionId<TOption>()
-    {
-        var optionId = GetOptionAttribute<TOption>()?.OptionId;
-        if (optionId == null)
-        {
-            throw new ArgumentException("Option must implement OptionAttribute");
-        }
-        
-        return optionId;
-    }
-
-    protected TValue GetDefaultValue<TOption, TValue>()
-    {
-        return (TValue) GetOptionAttribute<TOption>().DefaultValue;
-    }
 }

Core/Options/IOption.cs

@@ -1,10 +1,20 @@
-using System.Runtime.Serialization;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 
 namespace Kruzya.TelegramBot.Core.Options;
 
-public interface IOption<TValue>
+public interface IOption
 {
+    public string OptionId { get; }
+    public string OptionName { get; }
+    public OptionType OptionType { get; }
+    public List<SelectChoice> ChoiceList { get; }
+}
+
+public interface IOption<TValue> : IOption
+{
+    public TValue DefaultValue { get; }
+
     public Task<TValue> GetValueAsync(long chatId);
     public Task SetValueAsync(long chatId, TValue value);
 }

Core/Options/IOptionProvider.cs

@@ -4,6 +4,6 @@ namespace Kruzya.TelegramBot.Core.Options;
 
 public interface IOptionProvider
 {
-    public Task<TValue> GetValueAsync<TOption, TValue>(long chatId);
-    public Task SetValueAsync<TOption, TValue>(long chatId, TValue value);
+    public Task<TValue> GetValueAsync<TValue>(long chatId, string optionId, TValue defVal);
+    public Task SetValueAsync<TValue>(long chatId, string optionId, TValue value);
 }

Core/Options/OptionAttribute.cs

@@ -1,17 +0,0 @@
-using System;
-using System.Runtime.Serialization;
-
-namespace Kruzya.TelegramBot.Core.Options;
-
-[AttributeUsage(AttributeTargets.Class)]
-public class OptionAttribute : Attribute
-{
-    public string OptionId { get; }
-    public object DefaultValue { get; }
-
-    public OptionAttribute(string optionId, object defaultValue = default)
-    {
-        OptionId = optionId;
-        DefaultValue = defaultValue;
-    }
-}

Core/Options/OptionType.cs

@@ -0,0 +1,7 @@
+namespace Kruzya.TelegramBot.Core.Options;
+
+public enum OptionType
+{
+    OnOff,
+    Select
+}

Core/Options/SelectChoice.cs

@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using Telegram.Bot.Types.ReplyMarkups;
+
+namespace Kruzya.TelegramBot.Core.Options;
+
+public class SelectChoice
+{
+    public string Id { get; }
+    public string FullName { get; }
+    public string ShortName { get; }
+
+    public SelectChoice(string id, string fullName, string shortName)
+    {
+        Id = id;
+        FullName = fullName;
+        ShortName = shortName;
+    }
+
+    public IEnumerable<InlineKeyboardButton> ToButton(long userId, string optionId, bool isActive = false)
+    {
+        return new[]
+        {
+            new InlineKeyboardButton((isActive ? "🟢 " : "🔴 ") + FullName)
+            {
+                CallbackData = $"option|{userId}|select|{optionId}|{Id}"
+            }
+        };
+    }
+}