import { BaseService } from './base.service';
import { ConfigService } from './config.service';
/**
 * Service for managing multi-step form navigation
 */
export declare class StepperService extends BaseService<number> {
    private configService;
    constructor(initialStepIndex: number, configService: ConfigService);
    /**
     * Navigate to the next step if possible
     * @param validateCallback Optional validation callback that determines if navigation is allowed
     * @returns New step index or current step if navigation isn't possible
     */
    nextStep(validateCallback?: () => boolean): number;
    /**
     * Validate current step and navigate to next if valid
     * @param currentStepId Current step ID for touch marking
     * @param markStepTouched Function to mark all fields in step as touched
     * @param validateStep Function to validate the current step
     * @returns New step index or current step if validation fails
     */ validateAndNext(currentStepId: string, markStepTouched: (stepId: string, touched: boolean) => void, validateStep: (showErrors: boolean) => boolean): number;
    /**
     * Navigate to the previous step if possible
     * @returns New step index or 0 if already at first step
     */
    prevStep(): number;
    /**
     * Go to a specific step by index
     * @param stepIndex Target step index
     * @returns True if navigation was successful, false otherwise
     */
    goToStep(stepIndex: number): boolean;
    /**
     * Check if currently on the first step
     * @returns True if on first step
     */
    get isFirstStep(): boolean;
    /**
     * Check if currently on the last step
     * @returns True if on last step
     */
    get isLastStep(): boolean;
}