casa-bot/src/CasaBot/CasaBotApp/Program.cs

using AutoScan;
using AutoScan.Options;
using CasaBotApp;
using CasaBotApp.Extensions;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Telegram.Bots;
using Telegram.Bots.Extensions.Polling;
using Telegram.Bots.Http;

var environment = Environment.GetEnvironmentVariable("CASABOT_ENVIRONMENT");
IConfigurationRoot configuration = new ConfigurationBuilder()
    .AddJsonFile($"appsettings.json", true, true)
    .AddJsonFile($"appsettings.{environment}.json", true, true)
    .AddEnvironmentVariables()
    .Build();

var hostBuilder = new HostBuilder();
hostBuilder.ConfigureServices((_, services) =>
{
    services.AddSingleton(configuration);
    
    services.AddLogging(configuration);
    
    services.Configure<TelegramOptions>(configuration.GetSection("Telegram"));
    services.Configure<AutoScanOptions>(configuration.GetSection("AutoScan"));
    services.Configure<ShinobiOptions>(configuration.GetSection("Shinobi"));

    services.AddSingleton<BotHandler>();
    
    var token = configuration["Telegram:BotToken"] ?? "";
    services.AddBotClient(token);
    services.AddPolling<BotHandler>();
    services.AddSingleton<IUpdateHandler>(sp => sp.GetService<BotHandler>()!);

    
    // To get notifications when a retry is performed
    
    services.AddAutoScan();
    
    services.AddPolicyRegistry().Add("RetryPolicy", RetryPolicyExtension.GetRetryPolicy());
    services.AddHttpClient<IBotClient, BotClient>().AddPolicyHandler(RetryPolicyExtension.GetRetryPolicy());
    
    
    services.Configure<HostOptions>(hostOptions =>
    {
        hostOptions.BackgroundServiceExceptionBehavior = BackgroundServiceExceptionBehavior.Ignore;
    });

});


var host = hostBuilder.Build();


var logger = host.Services.GetService<ILogger<Program>>()!;
var botHandler = host.Services.GetService<BotHandler>()!;
var autoScanApp = host.Services.GetService<AutoScanApp>()!;

CommandRegister.RegisterCommands(botHandler, autoScanApp);

using var cts = new CancellationTokenSource();

_ = autoScanApp.Run(cts.Token);
botHandler.Start(cts.Token);

CommandRegister.UpdateOnScanCompleted(botHandler, autoScanApp, logger);

logger.LogInformation("Bot started");
await host.RunAsync(cts.Token);

await cts.CancelAsync(); // stop the bot