export class VoiceMetrics {
  constructor() { this.startedAt = Date.now(); this.wakeAccepts = 0; this.wakeRejects = 0; this.feedbackDrops = 0; this.utterances = 0; this.replies = 0; this.synthesisCount = 0; this.synthesisMs = 0; this.audioMs = 0; }
  wakeAccepted() { this.wakeAccepts += 1; }
  wakeRejected() { this.wakeRejects += 1; }
  feedbackDrop() { this.feedbackDrops += 1; }
  utterance() { this.utterances += 1; }
  reply() { this.replies += 1; }
  synthesis(elapsedMs, audioMs) {
    this.synthesisCount += 1;
    this.synthesisMs += Math.max(0, Number(elapsedMs) || 0);
    this.audioMs += Math.max(0, Number(audioMs) || 0);
  }
  snapshot() { return { uptimeMs: Date.now() - this.startedAt, wakeAccepts: this.wakeAccepts, wakeRejects: this.wakeRejects, feedbackDrops: this.feedbackDrops, utterances: this.utterances, replies: this.replies, synthesisCount: this.synthesisCount, synthesisMs: this.synthesisMs, audioMs: this.audioMs, synthesisRealtimeFactor: this.audioMs > 0 ? this.synthesisMs / this.audioMs : null }; }
}