TgBots/Program.cs

using System;
using System.Data;
using System.Threading;
using System.Threading.Tasks;
using Telegram.Bot;
using Telegram.Bot.Types;
using Telegram.Bot.Types.Enums;
using Dapper;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Npgsql;
using UserOfTheDayBot.Data;
using UserOfTheDayBot.Services;

public class Program
{
    public static async Task Main(string[] args)
    {
        var host = Host.CreateDefaultBuilder(args)
            .ConfigureAppConfiguration((context, config) =>
            {
                config.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
                config.AddEnvironmentVariables(); // Добавление переменных среды
            })
            .ConfigureServices((context, services) =>
            {
                services.AddSingleton<IUserRepository, UserRepository>();
                services.AddSingleton<IUserOfTheDayRepository, UserOfTheDayRepository>();
                services.AddSingleton<BotService>();

                // TelegramBotClient зависит от IConfiguration для получения токена
                services.AddSingleton<ITelegramBotClient>(provider =>
                {
                    var configuration = provider.GetRequiredService<IConfiguration>();
                    var botToken = configuration["BotSettings:BotToken"];
                    return new TelegramBotClient(botToken);
                });
            })
            .Build();
    }
}