/// <reference types="vite/client" />

// ===== 浏览器 Speech Recognition API 类型声明 =====
// Chrome/Edge 使用 window.SpeechRecognition，部分旧版使用 window.webkitSpeechRecognition

interface SpeechRecognitionEvent extends Event {
  results: SpeechRecognitionResultList;
  resultIndex: number;
}

interface SpeechRecognitionResultList {
  length: number;
  [index: number]: SpeechRecognitionResult;
}

interface SpeechRecognitionResult {
  isFinal: boolean;
  length: number;
  [index: number]: SpeechRecognitionAlternative;
}

interface SpeechRecognitionAlternative {
  transcript: string;
  confidence: number;
}

interface SpeechRecognitionErrorEvent extends Event {
  error: string;
  message: string;
}

interface SpeechRecognition extends EventTarget {
  continuous: boolean;
  interimResults: boolean;
  lang: string;
  onresult: ((event: SpeechRecognitionEvent) => void) | null;
  onerror: ((event: SpeechRecognitionErrorEvent) => void) | null;
  onend: (() => void) | null;
  onstart: (() => void) | null;
  start(): void;
  stop(): void;
  abort(): void;
}

interface Window {
  SpeechRecognition?: new () => SpeechRecognition;
  webkitSpeechRecognition?: new () => SpeechRecognition;
}