telegram-bot/Core/Service/IReputation.cs

using System.Threading.Tasks;
using Telegram.Bot.Types;

namespace Kruzya.TelegramBot.Core.Service
{
    public interface IReputation
    {
        public Task<double> GetUserReputationAsync(Chat chat, User user);
        public Task<double> SetUserReputationAsync(Chat chat, User user, double value);
        public Task<double> GetReputationDiffAsync(Chat chat, User sender, User receiver);
        public Task IncrementReputationAsync(Chat chat, User user, double diff);
    }
}