import React from 'react';
import { AudioRecordingProps, IMessage } from '../Models';
export declare const isVoiceRecordingAvailable: boolean;
export declare const formatElapsed: (ms: number) => string;
/** Live recording state surfaced to the InputToolbar so it can render the bar. */
export interface VoiceRecordingState {
    active: boolean;
    locked: boolean;
    elapsed: number;
    cancelArmed: boolean;
    /**
     * Recent microphone amplitudes, 0..1, oldest first. Drives the live waveform
     * the toolbar draws while a recording is locked.
     */
    levels: number[];
}
export interface VoiceMessageInputHandle {
    /** Discard the in-progress recording (used by the bar's Cancel button). */
    cancel: () => void;
}
export interface VoiceMessageInputProps {
    config?: AudioRecordingProps;
    onSend?: (message: Partial<IMessage>, shouldResetInputToolbar: boolean) => void;
    /** Reports recording state up so the toolbar can draw the timer/cancel bar. */
    onStateChange?: (state: VoiceRecordingState) => void;
    /**
     * Single tap on the mic. When provided, the control switches to tap-to-toggle
     * (voice <-> video) and only records once the press is held, matching Telegram.
     */
    onTap?: () => void;
}
export declare const VoiceMessageInput: React.ForwardRefExoticComponent<VoiceMessageInputProps & React.RefAttributes<VoiceMessageInputHandle>>;
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