import { Observable } from 'rxjs';
import { Actor, Form, Task, WorkflowAction } from 'verben-workflow-ui/src/lib/models';
import { UtilService } from 'verben-workflow-ui/src/lib/services';
import { OperationPopupService } from './operation-popup.service';
import { OperationPopupState } from './operation-popup.state';
import * as i0 from "@angular/core";
export declare class OperationPopupFacade {
    private service;
    private state;
    private utilService;
    constructor(service: OperationPopupService, state: OperationPopupState, utilService: UtilService);
    isUpdating$(): Observable<boolean>;
    getNextActions$(): Observable<WorkflowAction[]>;
    getNextActors$(): Observable<Actor[]>;
    getTaskForms$(): Observable<Form[]>;
    loadNextActions(taskCode: string): Promise<WorkflowAction[]>;
    loadPreviousActions(taskCode: string): Promise<WorkflowAction[]>;
    loadAllPreviousActions(taskCode: string): Promise<WorkflowAction[]>;
    loadNextActors(taskCode: string, forCurrentStage: boolean, stageCode?: string): Promise<Actor[]>;
    loadTaskForms(taskCode: string): Promise<Form[]>;
    passOn(action: WorkflowAction, task: Task, comment: string, recipient: string | null): Promise<void>;
    passBack(action: WorkflowAction, task: Task, comment: string, recipient: string | null): Promise<void>;
    skipTo(from: WorkflowAction['FromStage'], to: WorkflowAction['ToStage'], task: Task, comment: string, recipient: string | null): Promise<void>;
    pickTask(targetStage: string, task: Task, comment: string, recipient: string | null): Promise<void>;
    releaseTask(targetStage: string, task: Task, comment: string, recipient: string | null): Promise<void>;
    followTask(actorId: string, task: Task): Promise<void>;
    unfollowTask(taskId: string, actorId: string): Promise<void>;
    reAssign(task: Task, comment: string, fromUser?: string, toUser?: string): Promise<void>;
    fillForm(form: Form, taskCode: string): Promise<Form | null>;
    static ɵfac: i0.ɵɵFactoryDeclaration<OperationPopupFacade, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<OperationPopupFacade>;
}