class SpeechCaptureProcessor extends AudioWorkletProcessor {
  constructor() {
    super();
    this.frameSize = 2048;
    this.frame = new Float32Array(this.frameSize);
    this.offset = 0;
  }

  process(inputs) {
    const input = inputs[0]?.[0];
    if (!input) return true;
    let inputOffset = 0;
    while (inputOffset < input.length) {
      const available = Math.min(this.frameSize - this.offset, input.length - inputOffset);
      this.frame.set(input.subarray(inputOffset, inputOffset + available), this.offset);
      this.offset += available;
      inputOffset += available;
      if (this.offset === this.frameSize) {
        const ready = this.frame;
        this.port.postMessage(ready, [ready.buffer]);
        this.frame = new Float32Array(this.frameSize);
        this.offset = 0;
      }
    }
    return true;
  }
}

registerProcessor("speech-capture-processor", SpeechCaptureProcessor);