MafiaTelegramBot/MafiaTelegramBot/Game/GameRoles/MafiaRole.cs

using System.Linq;
using System.Threading.Tasks;
using MafiaTelegramBot.Game.GameRooms;
using MafiaTelegramBot.Models;
using MafiaTelegramBot.Resources;
using Telegram.Bot.Types;

namespace MafiaTelegramBot.Game.GameRoles
{
    public class MafiaRole : GameRoom.Role
    {
        public override Roles RoleKey => Roles.Mafia;

        public override async Task NightAction()
        {
            NightTargetId = -1;
            Player.IsSpeaker = true;
            var targets = Room.Players.Values.Where(p => p.IsAlive).ToList();
            var message = await Bot.SendWithMarkdown2(Player.ChatId, strings.choose_player_to_kill, 
                Keyboard.NightChooseTargetKeyboard(targets, Player.Id, true));
            MessageId = message.MessageId;
        }

        public override Task ApplyNightActionResult() { return Task.CompletedTask; }

        public override Task CancelNightActionResult(string message)
        {
            //TODO why action canceled
            return Task.CompletedTask;
        }

        public override async Task<Message> SetNightTarget(long userId)
        {
            NightTargetId = userId;
            return await Bot.Get().EditMessageTextAsync(Player.ChatId, MessageId, $"{strings.you_choose_target} {Room.Players[userId].NickName}");
        }

        public MafiaRole(GameRoom room, Player player) : base(room, player) { }
    }
}