import { InjectionToken } from '@angular/core';
import { ActivatedRouteSnapshot, CanActivate, RouterStateSnapshot } from '@angular/router';
import { Observable } from 'rxjs';
import { MtnaLogger } from '@mtna/lib-ui';
import { Catalog } from '@mtna/pojo-consumer-ui';
import { RdsDataProductDialogService } from '../../data-product-selection-dialog/data-product-dialog.service';
import { RdsApiService } from './rds-api.service';
export declare const RDS_ROOT_CATALOG: InjectionToken<Observable<Catalog>>;
/**
 * Protect routes that require a data product to be selected.
 * If a data product is not selected, the guard will automatically select it
 * if there is only one option, otherwise it will open the data product selection dialog.
 *
 * Requires the app to provide the `RDS_ROOT_CATALOG` injection token. In your AppModule:
 * @example
 *
 * export function getRootCatalog(store: Store<fromRoot.State>): Observable<Catalog> {
 *   return store.pipe(select(fromRoot.getDataProductRootCatalog));
 * }
 *
 * NgModule({
 *   ...
 *   providers: [
 *     {
 *       provide: RDS_ROOT_CATALOG,
 *       useFactory: getRootCatalog,
 *       deps: [Store]
 *     }
 *   ],
 *   ...
 * })
 * export class AppModule {}
 *
 */
export declare class RdsDataProductGuard implements CanActivate {
    protected dataProductDialog: RdsDataProductDialogService;
    protected rdsApiService: RdsApiService;
    private getRootCatalog;
    protected logger: MtnaLogger;
    /** Whether the catalog has been set and actually exists in the root catalog */
    protected get catalogSetAndExists(): boolean;
    private _catalogSetAndExists;
    /** Whether the data product has been set and actually exists in the selected catalog */
    protected get dataProductSetAndExists(): boolean;
    private _dataProductSetAndExists;
    constructor(dataProductDialog: RdsDataProductDialogService, rdsApiService: RdsApiService, getRootCatalog: Observable<Catalog>, logger: MtnaLogger);
    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean>;
    /**
     * Determine if the catalog and data product have been set on the api service and exists in the root catalog
     * @param rootCatalog root catalog for a given RDS environment
     */
    protected determineSetAndExists(rootCatalog: Catalog): void;
    /**
     * Selects the initial catalog.
     * This method will check if there is only only catalog available and select it,
     * or if there are multiple options it will open the data product selection dialog for the user to choose.
     *
     * @param rootCatalog RDS root catalog
     * @returns Observable whether the selection has changed
     */
    private selectInitialCatalog;
    /**
     * Selects the initial data product.
     * If there is only one data product in the provided catalog, select it.
     * If there are multiple data products, open the dialog and let the user choose.
     *
     * @param catalog Selected catalog
     * @param rootCatalog RDS root catalog
     * @returns Observable whether the selection has changed
     */
    private selectInitialDataProduct;
}