pcsc.on("reader", (reader) => {
		log(`New Reader(${ reader.name })`);
		readers.add(reader);

		reader.on("status", (status) => {
			const changes = reader.state ^ status.state;

			if (changes) {
				if (changes & status.state & reader.SCARD_STATE_EMPTY) {
					log(`Reader(${ reader.name }) card removed`);
					reader.disconnect(reader.SCARD_LEAVE_CARD, (err) => {
						if (err) {
							log(`Reader(${ reader.name }) error on disconnect ${ err }`);
						} else {
							log(`Reader(${ reader.name }) card disconnected`);
						}
					});
				} else if (changes & status.state & reader.SCARD_STATE_PRESENT) {
					log(`Reader(${ reader.name }) card inserted`);
					setTimeout(() => {
						reader.connect({ share_mode: reader.SCARD_SHARE_SHARED }, (err, protocol) => {
							if (err) {
								log(`Reader(${ reader.name }) error on connect ${ err }`);
							} else {
								cb(new Card(reader, protocol));
							}
						});
					}, 20);
				}
			}
		});

		reader.on('end', () => {
			log(`Remove Reader(${ reader.name })`);
			readers.delete(reader);
		});

		reader.on('error', (err) => log(`Error Reader(${ reader.name }): ${ err.message }`));
	});

export function dispose() {
	readers.forEach(reader => {
		reader.close();
	});
	readers.clear();
}