/**
 * Hook for Speech-to-Text functionality
 */
import type { GetSTTOptions, STTOptions } from '../browser-ai/index.js';
/**
 * Options for useSTT hook
 */
export interface UseSTTOptions {
    /** Auto-initialize on mount */
    autoInit?: boolean;
    /** Default STT options */
    defaultOptions?: STTOptions;
}
/**
 * Return type for useSTT hook
 */
export interface UseSTTReturn {
    /** Start listening */
    start: (options?: STTOptions) => Promise<void>;
    /** Stop listening */
    stop: () => Promise<void>;
    /** Initialize the adapter (called automatically if autoInit) */
    initialize: (options?: GetSTTOptions) => Promise<void>;
    /** Current state (reactive) */
    readonly isListening: boolean;
    readonly isReady: boolean;
    readonly isInitializing: boolean;
    /** Final transcribed text (updates on speech completion) */
    readonly lastResult: string;
    /** Interim transcribed text (updates live during speech) */
    readonly interimResult: string;
    /** Current result - interim while listening, last result otherwise */
    readonly currentResult: string;
    readonly error: Error | null;
    readonly downloadProgress: number;
    /** Current adapter type (e.g., 'browser', 'whisper-wasm', 'whisper-cpp') */
    readonly adapterType: string | null;
}
/**
 * Hook for Speech-to-Text
 *
 * @example
 * ```svelte
 * <script>
 *   import { useSTT } from '@happyvertical/smrt-svelte';
 *
 *   const stt = useSTT();
 *
 *   async function handleClick() {
 *     if (stt.isListening) {
 *       await stt.stop();
 *     } else {
 *       await stt.start();
 *     }
 *   }
 * </script>
 *
 * <button onclick={handleClick}>
 *   {stt.isListening ? 'Stop' : 'Start'} Listening
 * </button>
 *
 * {#if stt.lastResult}
 *   <p>You said: {stt.lastResult}</p>
 * {/if}
 * ```
 */
export declare function useSTT(options?: UseSTTOptions): UseSTTReturn;
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