/// <reference types="next" />
/// <reference types="next/image-types/global" />

// Web Speech API types
interface SpeechRecognitionErrorEvent extends Event {
  error: string;
  message: string;
}

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

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

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

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

interface SpeechRecognitionInstance extends EventTarget {
  lang: string;
  continuous: boolean;
  interimResults: boolean;
  maxAlternatives: number;
  onaudioend: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onaudiostart: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onend: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onerror: ((this: SpeechRecognitionInstance, ev: SpeechRecognitionErrorEvent) => void) | null;
  onnomatch: ((this: SpeechRecognitionInstance, ev: SpeechRecognitionEvent) => void) | null;
  onresult: ((this: SpeechRecognitionInstance, ev: SpeechRecognitionEvent) => void) | null;
  onsoundend: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onsoundstart: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onspeechend: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onspeechstart: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  onstart: ((this: SpeechRecognitionInstance, ev: Event) => void) | null;
  abort(): void;
  start(): void;
  stop(): void;
}

interface SpeechRecognitionConstructor {
  new (): SpeechRecognitionInstance;
  prototype: SpeechRecognitionInstance;
}

declare global {
  interface Window {
    SpeechRecognition?: SpeechRecognitionConstructor;
    webkitSpeechRecognition?: SpeechRecognitionConstructor;
  }
}

export {};
