import * as dgram from 'dgram';
import { toBuffer } from 'osc-min';
import { OSCArgument, OSCType, OSCArgumentType } from './types';

/**
 * OSC Client, handles sending OSC messages

   ```
   const osc = new OSCClient("192.168.0.44", 8000);
   ```
 */
export class OSCClient {
  public socket: dgram.Socket;
  private host: string;
  private port: number;
  constructor(host: string, port: number) {
    this.host = host;
    this.port = port;
    this.socket = dgram.createSocket({ type: 'udp4', reuseAddr: true });
  }

  public sendPacket(packet: Buffer): void {
    this.socket.send(packet, 0, packet.length, this.port, this.host);
  }

  /**
   * Send an OSC message
     ```
     osc.send("/osc/url", OSCType.String, "hello");
     ```
   */

  public send<T extends OSCType>(address: string, type: T, value: OSCArgumentType<T>): void {
    const arg: OSCArgument<T> = {
      type,
      value,
    };

    const encoded = toBuffer(address, [arg]);
    this.sendPacket(encoded);
  }

  /**
   * Close the connection
   */

  public close(): void {
    this.socket.close();
  }
}