import { SpaceResource } from '@opencloud-eu/web-client';
/**
 * Locating resources that an app labels as its own. A folder carries a name
 * extension (`New folder.vault`), a space a content type in its
 * `@libre.graph.contentType` drive property (`application/vnd.opencloud.vault`).
 */
export interface ExtensionMarker {
    /** Name extension a folder carries, without the leading dot, e.g. `vault`. */
    extension: string;
    /** Drive content type a space carries, e.g. `application/vnd.opencloud.vault`. */
    contentType: string;
}
/** Whether a space carries a given content type. */
export declare function isContentTypeSpace(space: SpaceResource | undefined, contentType: string): boolean;
/**
 * Root path of the folder carrying a given extension within a clear-text path:
 * the first segment with the extension, returned as an absolute path. Null when
 * no segment carries it.
 */
export declare function findExtensionRootInPath(path: string | undefined, extension: string): string | null;
/**
 * Find the root path for a (space, path). Two cases:
 *   1. The space itself carries the marker, so its root `/` is the root for
 *      everything inside it.
 *   2. A folder carrying the extension in its path.
 */
export declare function findExtensionRoot(space: SpaceResource | undefined, path: string | undefined, marker: ExtensionMarker): string | null;