import { SystemError } from './error';
export declare class FolderError extends SystemError {
    readonly operation: string;
    readonly reason: string;
    constructor(operation: string, reason: string);
}
export declare class Folder {
    private readonly folderPath;
    constructor(folderPath: string);
    /** Returns an interface to interact with a folders contents. */
    contents(): Contents;
    /**
     * Copies a file or folder into this folder. If this folder does not exist, it will be created.
     * Any existing files copied into this folder will be overwritten.
     */
    add(systemPath: string): Promise<void>;
    /** Copies this folder to a target folder. */
    copy(folderPath: string): Promise<void>;
    /** Creates this folder. If the folder exists, no action. */
    create(): Promise<void>;
    /** Deletes this folder. If the folder does not exist, no action. */
    delete(): Promise<void>;
    /** Returns true if this folder exists. */
    exists(): Promise<boolean>;
    /** Moves this folder to a target folder. */
    move(folderPath: string): Promise<void>;
    /** Renames this folder. */
    rename(newName: string): Promise<void>;
    /** Returns the size of this folder in bytes. */
    size(): Promise<number>;
    /** Returns a stats object for this folder. */
    stat(): Promise<void>;
    /** Asserts the given system path exists. */
    private assertExists;
    private checkExists;
    private createFolder;
    /** Recursively enumerates all files within this directory. */
    private enumerateFiles;
}
export declare class ContentsError extends SystemError {
    readonly operation: string;
    readonly reason: string;
    constructor(operation: string, reason: string);
}
export declare class Contents {
    private folderPath;
    constructor(folderPath: string);
    /** Copies the contents for this folder into a target folder. */
    copy(folderPath: string): Promise<void>;
    /** Copies the contents for this folder into a target folder. */
    move(folderPath: string): Promise<void>;
    private createFolder;
    private assertExists;
    private checkExists;
}
/** Returns an interface to interact with a folder. */
export declare function folder(folderPath: string): Folder;