import { LitElement, TemplateResult, CSSResult } from 'lit';
declare global {
    interface HTMLElementTagNameMap {
        'forge-ai-voice-input': AiVoiceInputComponent;
    }
    interface Window {
        SpeechRecognition: typeof SpeechRecognition;
        webkitSpeechRecognition: typeof SpeechRecognition;
    }
}
interface SpeechRecognitionAlternative {
    readonly transcript: string;
    readonly confidence: number;
}
interface SpeechRecognitionResult {
    readonly length: number;
    item(index: number): SpeechRecognitionAlternative;
    [index: number]: SpeechRecognitionAlternative;
}
interface SpeechRecognitionResultList {
    readonly length: number;
    item(index: number): SpeechRecognitionResult;
    [index: number]: SpeechRecognitionResult;
}
interface SpeechRecognitionEvent extends Event {
    readonly results: SpeechRecognitionResultList;
}
interface SpeechRecognition extends EventTarget {
    continuous: boolean;
    interimResults: boolean;
    lang: string;
    start(): void;
    stop(): void;
    onstart: ((this: SpeechRecognition, ev: Event) => void) | null;
    onend: ((this: SpeechRecognition, ev: Event) => void) | null;
    onerror: ((this: SpeechRecognition, ev: Event) => void) | null;
    onresult: ((this: SpeechRecognition, ev: SpeechRecognitionEvent) => void) | null;
}
declare const SpeechRecognition: {
    prototype: SpeechRecognition;
    new (): SpeechRecognition;
};
export declare const AiVoiceInputComponentTagName: keyof HTMLElementTagNameMap;
/**
 * Event detail interface for the speech recognition result event.
 */
export interface ForgeAiVoiceInputResultEvent {
    /** The recognized speech text */
    transcript: string;
    /** Confidence score of the recognition result (0-1) */
    confidence: number;
}
/**
 * @tag forge-ai-voice-input
 *
 * @event {CustomEvent<AiVoiceInputResultEvent>} forge-ai-voice-input-result - Fired when speech recognition produces a result.
 * The event detail contains the transcript and confidence score of the recognized speech.
 */
export declare class AiVoiceInputComponent extends LitElement {
    static styles: CSSResult;
    private _isRecording;
    private _recognition;
    connectedCallback(): void;
    private _initializeSpeechRecognition;
    private _toggleRecording;
    render(): TemplateResult;
}
export {};