class Synth {
  constructor(audioContext, waveType = "sine", frequency = 400) {
    this.audioContext = audioContext;
    this.oscWaveType = waveType;
    this.oscFrequency = frequency;

    // osc setup
    this.osc = this.audioContext.createOscillator();
    this.osc.type = this.oscWaveType;
    this.osc.frequency.setValueAtTime(this.oscFrequency, this.audioContext.currentTime);
    this.osc.connect(this.audioContext.destination);
  }
  
  setOscWaveType(type) {
    this.oscWaveType = type;
    this.osc.type = this.oscWaveType;
  }

  startOsc() {
    this.osc.start();
  }

  stopOsc() {
    // first get all the parameters for this osc
    let currentFreq = this.osc.frequency.value;
    let currentType = this.osc.type;

    this.osc.stop();
    this.osc = this.audioContext.createOscillator();
    console.log(this.osc);
    this.osc.type = currentType;
    this.osc.frequency.setValueAtTime(currentFreq, this.audioContext.currentTime);
  }
}


let globalAudioContext = new AudioContext();
let synth = new Synth(globalAudioContext);

window.onload = function() {
  console.log("hello world!");
  console.log(synth);
}