import { Location } from '@angular/common';
import { OnInit } from '@angular/core';
import { ActionHistory, ActionType, Actor, File as FileData, OperationType } from 'verben-workflow-ui/src/lib/models';
import { EnvironmentService, UtilService } from 'verben-workflow-ui/src/lib/services';
import { TaskHistoryService } from './task-history.service';
import * as i0 from "@angular/core";
export declare class TaskHistoryComponent implements OnInit {
    private _location;
    private service;
    private envSvc;
    private utilService;
    taskCode: import("@angular/core").InputSignal<string>;
    operationType: typeof OperationType;
    active: number;
    showCommentBox: boolean;
    newComment: string;
    selectedFiles: FileData[];
    constructor(_location: Location, service: TaskHistoryService, envSvc: EnvironmentService, utilService: UtilService);
    history: ActionHistory[];
    ngOnInit(): void;
    goBack(): void;
    setActive(i: number): void;
    getTagsFromActor(actor: Actor): string;
    addComment(): void;
    saveComment(): Promise<void>;
    onFileSelect(data: any): void;
    private generateRandomCode;
    getFileExtension(fileUrl: string): string;
    setPreview(val: string): string;
    showFromAndTo(actionType: ActionType): boolean;
    getFileName(fileUrl: string): string;
    openFile(fileUrl: string): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TaskHistoryComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<TaskHistoryComponent, "lib-task-history", never, { "taskCode": { "alias": "taskCode"; "required": true; "isSignal": true; }; }, {}, never, never, false, never>;
}