import { Session } from '../../skychat/Session.js';
export type FileType = 'video' | 'audio' | 'image' | 'subtitle' | 'unknown';
export type FolderContent = {
    exists: boolean;
    thumb?: string;
    folders: string[];
    files: {
        name: string;
        type: FileType;
    }[];
};
export type PlayableFileInfo = {
    url: string;
    title: string;
    duration: number;
};
export declare class Gallery {
    static readonly FOLDER_PATH_REGEX: RegExp;
    static readonly FILE_PATH_REGEX: RegExp;
    static readonly THUMB_FILE_NAMES: string[];
    static readonly EXTENSION_FILE_TYPES: {
        [key: string]: FileType;
    };
    static readonly DEFAULT_FILE_TYPE = "unknown";
    static readonly BASE_PATH = "gallery/";
    static ensureNoParentDirectoryAccess(path: string): void;
    static canRead(session: Session): boolean;
    static canWrite(session: Session): boolean;
    static canDelete(session: Session): boolean;
    static checkFolderPath(folderPath: string): void;
    static checkFilePath(filePath: string): void;
    static ls(folderPath: string): Promise<FolderContent>;
    static rm(filePath: string): Promise<FolderContent>;
    /**
     * Tells whether a file exists in the gallery
     */
    static fileExists(filePath: string): Promise<boolean>;
    /**
     * Ensure a file type exists and get its type
     */
    static getFileType(filePath: string): Promise<string>;
    /**
     * Tells whether a file exists in the gallery
     */
    static getPlayableFileInfo(filePath: string): Promise<PlayableFileInfo>;
}