MafiaTelegramBot/MafiaTelegramBot/Models/Commands/Command.cs

using System.Collections.Generic;
using System.Threading.Tasks;
using MafiaTelegramBot.Models.Commands.CustomMessageHandlers;
using Telegram.Bot.Types;
using Telegram.Bot.Types.Enums;

namespace MafiaTelegramBot.Models.Commands
{
    public abstract class Command : UpdateModel
    {
        private static Dictionary<string, Command> _customHandlers = new()
        {
            {"UsersThatChangesNickname", new ChangeNicknameCommand()},
            {"UsersThatCreatesRoom", new CreateRoomCommand()},
            {"UserThatEntersPrivateCode", new EnterPrivateRoomCommand()},
        };
        public static async Task<Message> Update(Update update)
        {
            var chatId = update.Message.Chat.Id;
            await Bot.Get().SendChatActionAsync(chatId, ChatAction.Typing);
            var commands = Bot.Commands;
            var message = update.Message.Text;
            var command = FirstOrDefault(commands, message);
            if (command != null) return await command.Execute(update);
            var userId = update.Message.From.Id;
            
            if (Bot.UsersThatChangesNickname.Remove(userId))
                return await _customHandlers["UsersThatChangesNickname"].Execute(update);
            if (Bot.UsersThatCreatesRoom.ContainsKey(userId))
                return await _customHandlers["UsersThatCreatesRoom"].Execute(update);
            if (Bot.UserThatEntersPrivateCode.Remove(userId))
                return await _customHandlers["UserThatEntersPrivateCode"].Execute(update);
            return await Bot.SendWithMarkdown2(chatId, $"{strings.command_not_found} _*\\({message}\\)*_");
        }
    }
}