telegram-bot/modules/Destiny2.WhereIsXur/RequestHandler.cs

using System.Threading.Tasks;
using BotFramework;
using BotFramework.Attributes;
using Kruzya.TelegramBot.Destiny2.WhereIsXur.Provider;
using Telegram.Bot;
using Telegram.Bot.Types.Enums;

namespace Kruzya.TelegramBot.Destiny2.WhereIsXur;

public class RequestHandler : BotEventHandler
{
    protected readonly IXurPlaceProvider _placeProvider;

    public RequestHandler(IXurPlaceProvider xurPlaceProvider)
    {
        _placeProvider = xurPlaceProvider;
    }
        
    [Command("d2_xur")]
    public async Task WhereIsXur()
    {
        var place = await _placeProvider.GetPlaceAsync();
        if (string.IsNullOrWhiteSpace(place))
        {
            await Response("unknown");
            return;
        }

        await Response(place);
    }

    protected async Task Response(string place)
    {
        await Bot.SendTextMessageAsync(Chat, $"<b>Xûr</b> place is <code>{place}</code>", parseMode: ParseMode.Html);
    }
}