import { RemoteVideoTrack } from 'livekit-client';
/**
 * Viewer positioning modes
 */
export type ViewerPosition = 'left' | 'right' | 'fullscreen';
/**
 * Supported aspect ratios for video display
 */
export type AspectRatio = '16:9' | '4:3' | 'auto';
/**
 * Loading state information
 */
export interface LoadingState {
    /**
     * Whether loading UI is visible
     */
    isLoading: boolean;
    /**
     * Message to display during loading
     */
    message?: string;
}
/**
 * Configuration options for SlideViewer component
 */
export interface SlideViewerOptions {
    /**
     * Positioning mode for the viewer
     * @default 'fullscreen'
     */
    position?: ViewerPosition;
    /**
     * Show loading state initially
     * @default true
     */
    showLoading?: boolean;
    /**
     * Custom message to show during loading
     * @default 'Loading presentation...'
     */
    loadingMessage?: string;
    /**
     * Aspect ratio for video display
     * @default 'auto'
     */
    aspectRatio?: AspectRatio;
    /**
     * Callback when viewer is ready to display content
     */
    onReady?: () => void;
    /**
     * Callback when an error occurs
     */
    onError?: (error: Error) => void;
    /**
     * Custom CSS class name for the container
     */
    className?: string;
    /**
     * Enable debug logging
     * @default false
     */
    debug?: boolean;
}
/**
 * Internal viewer state
 */
export interface ViewerState {
    /**
     * Current position
     */
    position: ViewerPosition;
    /**
     * Current loading state
     */
    loading: LoadingState;
    /**
     * Current video track (if any)
     */
    videoTrack: RemoteVideoTrack | null;
    /**
     * Whether viewer has been destroyed
     */
    destroyed: boolean;
    /**
     * Aspect ratio setting
     */
    aspectRatio: AspectRatio;
}
/**
 * CSS dimensions for positioning
 */
export interface ViewerDimensions {
    width: string;
    height: string;
    top?: string;
    left?: string;
    right?: string;
    bottom?: string;
}