import type { EcoComponent, EcoPageLayoutEntry, LayoutPropsContext } from '../../../types/public-types.js';
import type { DocumentShellLayoutInput } from './document-shell-render.service.js';
export type LayoutShellPropsContext = LayoutPropsContext & {
    pageProps?: Record<string, unknown>;
};
export type DocumentShellLayoutResolutionInput = LayoutShellPropsContext & {
    layout?: EcoComponent;
    layoutEntries?: EcoPageLayoutEntry[];
};
/**
 * Resolves the default shell props passed to a layout tier during route render.
 */
export declare function resolveLayoutShellProps(context: LayoutShellPropsContext): Record<string, unknown>;
/**
 * Resolves props for one layout entry, merging shell props with an optional factory.
 */
export declare function resolveLayoutEntryProps(entry: EcoPageLayoutEntry, context: LayoutShellPropsContext): Record<string, unknown>;
/**
 * Resolves declarative layout entries into the document-shell inputs used during route render.
 *
 * @remarks Layout prop factories must be evaluated here so integrations do not
 * silently fall back to the innermost layout and discard route-specific props.
 */
export declare function resolveDocumentShellLayouts(input: DocumentShellLayoutResolutionInput): DocumentShellLayoutInput[];
/**
 * Reads the normalized layout stack from a page component config.
 */
export declare function resolvePageLayoutComponents(layouts?: EcoPageLayoutEntry['component'][]): EcoPageLayoutEntry['component'][];
/**
 * Returns the innermost layout component from a normalized page layout stack.
 */
export declare function resolveInnermostPageLayout(layouts?: EcoPageLayoutEntry['component'][]): EcoPageLayoutEntry['component'] | undefined;