import { LitElement } from 'lit';
import type { SupportedLang, BargeInPlugin } from '../types.js';
import type { VoiceInfo, EngineCapabilities } from '@ariontalk/core';
interface SettingsData {
    lang: SupportedLang;
    voiceId: string;
    rate: number;
    pitch: number;
    volume: number;
    bargeInPluginId: string;
}
/**
 * Settings panel with language selection, voice dropdown, and rate/pitch/volume sliders.
 */
export declare class WidgetVoiceSettings extends LitElement {
    static styles: import("lit").CSSResult[];
    voices: VoiceInfo[];
    currentSettings: SettingsData | null;
    bargeInPlugins: BargeInPlugin[];
    capabilities: EngineCapabilities | null;
    private static readonly LANG_DISPLAY_NAMES;
    private selectedLang;
    private selectedVoiceId;
    private rate;
    private pitch;
    private volume;
    private bargeInPluginId;
    private initialized;
    connectedCallback(): void;
    willUpdate(): void;
    render(): import("lit").TemplateResult<1>;
    private getVoiceTiers;
    private handleLangChange;
    private handleVoiceChange;
    private handleRateChange;
    private handlePitchChange;
    private handleVolumeChange;
    private handleBack;
    private handleApply;
}
declare global {
    interface HTMLElementTagNameMap {
        'vcw-voice-settings': WidgetVoiceSettings;
    }
}
export {};