import React from 'react';
import { ContentfulDataSource } from '../dataSource';
import { DataSourceWithResolve } from '../resolve';
interface LocalSchemaContext {
    dataSource: DataSourceWithResolve;
    state: {
        /** A number that auto-increments whenever a new entry is indexed */
        revision: number;
        /** A timestamp indicating when the index method was last called to update the dataSource. */
        lastIndexedAt: number;
        /** A timestamp indicating when the resync method last completed. */
        lastSyncedAt: number;
        /** A timestamp indicating the last time that the post-sync backup completed. */
        lastBackedUpAt: number;
    };
    /**
     * Directly invokes the sync method on the data source, updating the revision number.
     * If the data source supports backup, this will also trigger a backup in the background.
     *
     * @returns A promise that resolves to the current revision number after sync completed.
     */
    resync: () => Promise<number>;
}
export interface LocalSchemaProviderProps {
    dataSource: ContentfulDataSource;
    /**
     * The component to render while waiting for restore from backup/sync.
     * By default, this will render an empty screen.
     */
    Loading?: React.ComponentType;
}
/**
 * Provides a data source to power the query hooks
 */
export declare function LocalSchemaProvider({ children, dataSource, Loading }: React.PropsWithChildren<LocalSchemaProviderProps>): React.ReactElement<{}, string | React.JSXElementConstructor<any>> | React.FunctionComponentElement<React.ProviderProps<LocalSchemaContext>> | null;
export declare function useDataSource(): readonly [DataSourceWithResolve, {
    /** A number that auto-increments whenever a new entry is indexed */
    revision: number;
    /** A timestamp indicating when the index method was last called to update the dataSource. */
    lastIndexedAt: number;
    /** A timestamp indicating when the resync method last completed. */
    lastSyncedAt: number;
    /** A timestamp indicating the last time that the post-sync backup completed. */
    lastBackedUpAt: number;
}, () => Promise<number>];
export {};