import { Submission } from '../models/submission.model';
import * as i0 from "@angular/core";
export declare class WhenClauseService {
    private activeWhenClauseGrids;
    private questionAnswerMap;
    private questionChange$;
    isInitialLoad: boolean;
    constructor();
    markLoadCompleted(): void;
    onQuestionChange(): import("rxjs").Observable<{
        questionId: string;
    }>;
    /**
     * Check if a grid has an active when clause
     */
    isActiveWhenClause(grid: any): boolean;
    /**
     * Add a grid to tracking list if it has an active when clause
     */
    addGrid(grid: any): void;
    setQuestionAnswer(questionId: string, answer: any, initial?: boolean): void;
    getAnswer(questionId: string): any;
    private evaluateAllWhenClauses;
    evaluateCondition(answer: any, operator: string, value: any): boolean;
    addGridsFromSubform(subform: any): void;
    /**
     * Recursively process childLogics structure
     */
    private processChildLogics;
    /**
     * Return ALL elements with an active whenClause inside a subform,
     * including nested childLogics (recursive)
     */
    getWhenClauseElements(subform: any): any[];
    /**
     * Recursively gather grids with active whenClause inside childLogics
     */
    private getElementsFromChildLogics;
    checkElementVisibility(id: string, submission: Submission): boolean;
    evaluateSubformWhenClauses(changedAnswer: any, submission: Submission, changedQuestionId: string, elementsWithWhenClause: any): void;
    resetService(): void;
    getActiveWhenClauseGrids(): any[];
    static ɵfac: i0.ɵɵFactoryDeclaration<WhenClauseService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<WhenClauseService>;
}