import { SmrtCollection } from '@happyvertical/smrt-core';
import { Asset } from './asset';
import { AssetCollection } from './assets';
import { Folder } from './folder';
export declare class FolderCollection extends SmrtCollection<Folder> {
    static readonly _itemClass: typeof Folder;
    /**
     * Get the folder tree starting from an optional root.
     *
     * When `rootId` is omitted, returns top-level folders (those with no
     * parent). When `rootId` is provided, returns all descendants of that
     * folder via the inherited SmrtHierarchical BFS traversal — same
     * cycle-safe, one-query-per-depth behaviour as Place/Event.
     *
     * @param rootId - Optional root folder ID; if omitted, returns top-level folders
     * @returns Array of folders (flat list; use parentId to reconstruct tree)
     */
    getTree(rootId?: string): Promise<Folder[]>;
    /**
     * Get the path from root to a given folder (ancestors + self).
     *
     * @param folderId - The folder ID to get the path for
     * @returns Array of folders from root to the given folder (inclusive)
     */
    getPath(folderId: string): Promise<Folder[]>;
    /**
     * Get all assets that are direct children of a folder.
     *
     * Folder membership is recorded on `Asset.folderId`, not on the folder
     * itself, so this is delegated to the asset collection.
     *
     * @param folderId - The folder ID
     * @param assetCollection - An AssetCollection instance for querying
     * @returns Array of assets in this folder
     */
    getContents(folderId: string, assetCollection: AssetCollection): Promise<Asset[]>;
    /**
     * Move an asset into a folder (or out, by passing `null`).
     *
     * @param asset - The asset to move
     * @param folderId - The target folder ID (or null to move to root)
     */
    moveAsset(asset: Asset, folderId: string | null): Promise<void>;
}
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