async listen() {
    this.server = new Server({
        hostname: this.address,
        port: this.port,
        chunkSize: MAX_BYTES_ALLOWED
    });

    this.server.on("listen", () => Logger.log(Level.INFO, `Listening on ${this.address}:${this.port}`));

    this.server.on("connect", (client: Client) => {
        const connection = new ClientConnection(client);
        this.connections.set(client, connection);
        Logger.log(Level.INFO, `Client ${connection.id} connected!`);

        client.addListener("receive", async (_, packet: Packet) => {
            const reader = new ByteReader(packet.data);
            reader.read(Type.VAR_INT) as number; // TODO: packet length?
            const packet_id = reader.read(Type.VAR_INT) as number;
            await connection.handle(this, reader, packet, packet_id);
        });

        client.addListener("close", async () => {
            Logger.log(Level.INFO, `Client ${connection.id} disconnected!`);
            // TODO: cleanup?
            await connection.close();
            this.connections.delete(client);
        });
    });

    await this.server.listen();
}

async listen() {
    this.server = new Server({
        hostname: this.address,
        port: this.port,
        chunkSize: MAX_BYTES_ALLOWED
    });

    this.server.on("listen", () => Logger.log(Level.INFO, `Listening on ${this.address}:${this.port}`));

    this.server.on("connect", (client: Client) => {
        const connection = new ClientConnection(client);
        this.connections.set(client, connection);
        Logger.log(Level.INFO, `Client ${connection.id} connected!`);

        client.addListener("receive", async (_, packet: Packet) => {
            const reader = new ByteReader(packet.data);
            reader.read(Type.VAR_INT) as number; // TODO: packet length?
            const packet_id = reader.read(Type.VAR_INT) as number;
            await connection.handle(this, reader, packet, packet_id);
        });

        client.addListener("close", async () => {
            Logger.log(Level.INFO, `Client ${connection.id} disconnected!`);
            // TODO: cleanup?
            await connection.close();
            this.connections.delete(client);
        });
    });

    await this.server.listen();
}