telegram-bot/Core/WebhookAspNetProvider.cs

#nullable enable

using BotFramework.Abstractions.UpdateProvider;
using BotFramework.Config;
using Microsoft.Extensions.Options;
using System.Threading;
using System.Threading.Tasks;
using Telegram.Bot;

namespace Kruzya.TelegramBot.Core
{
    public class WebhookAspNetProvider : IWebhookProvider
    {
        private readonly ITelegramBotClient _client;
        private readonly BotConfig _config;
        private readonly string? _secretToken;

        public WebhookAspNetProvider(ITelegramBotClient client, IOptions<BotConfig> config)
        {
            _client = client;
            _config = config.Value;

            _secretToken = _config.Webhook.SecretToken;
            if (string.IsNullOrWhiteSpace(_secretToken))
            {
                _secretToken = null;
            }
        }

        public async Task StartAsync(CancellationToken token)
        {
            await _client.SetWebhookAsync(_config.Webhook.Url, secretToken: _secretToken, cancellationToken: token);
        }

        public async Task StopAsync(CancellationToken token)
        {
            await _client.DeleteWebhookAsync(cancellationToken: token);
        }
    }
}