let mut reply_to: Option<telegram_bot::UserId>;

	loop {
		reply_to = None;
		match stream.next().await {
			Some(update) => {
				if let Err(err) = handle(update?, &core, &reply_to).await {
					core.send(&format!("🛑 {:?}", err), reply_to, None).await?;
				};
			},
			None => {
				core.send("🛑 None error.", None, None).await?;
			}
		};
	}
}

async fn handle(update: telegram_bot::Update, core: &core::Core, mut _reply_to: &Option<telegram_bot::UserId>) -> Result<()> {
	if let telegram_bot::UpdateKind::Message(message) = update.kind {
		if let telegram_bot::MessageKind::Text { ref data, .. } = message.kind {
			let sender = message.from.id;
			let words: Vec<&str> = data.split_whitespace().collect();
			match match words[0] {
				"/check" | "/clean" | "/enable" | "/delete" | "/disable" => command::command(core, sender, words).await,
				"/start" => command::start(core, sender).await,
				"/list" => command::list(core, sender).await,
				"/add" | "/update" => command::update(core, sender, words).await,
				_ => Ok(()),
			} {
				Err(err) => core.send(format!("🛑 {:?}", err), Some(sender), None).await?,
				Ok(()) => {},
			};
		};
	};

	Ok(())
}