import { OnDestroy } from '@angular/core';
import { Observable } from 'rxjs';
import { TimerState } from '../models/session.model';
import * as i0 from "@angular/core";
/**
 * Service for managing session timeout and warning timer
 */
export declare class FgsSessionTimerService implements OnDestroy {
    private config;
    private storageService;
    private ngZone;
    private timerInterval;
    private isRunning;
    private isPaused;
    private timerState;
    private timerTrigger;
    private sessionExpired;
    private warningStarted;
    private timerReset;
    /**
     * Observable for timer state
     */
    timerState$: Observable<TimerState>;
    /**
     * Observable for timer trigger (seconds remaining, 0 = no warning)
     */
    timerTrigger$: Observable<number>;
    /**
     * Emitted when session expires
     */
    sessionExpired$: Observable<void>;
    /**
     * Emitted when warning window starts
     */
    warningStarted$: Observable<number>;
    /**
     * Emitted when timer is reset
     */
    timerReset$: Observable<void>;
    private get sessionTimeoutMs();
    private get warningWindowSeconds();
    private get debug();
    ngOnDestroy(): void;
    /**
     * Start the session timer
     */
    start(): void;
    /**
     * Stop the session timer
     */
    stop(): void;
    /**
     * Pause the timer (e.g., when modal is shown)
     */
    pause(): void;
    /**
     * Resume the timer
     */
    resume(): void;
    /**
     * Reset timer (on API call or user activity)
     */
    resetTimer(isApiCall?: boolean): void;
    /**
     * Update session time (alias for resetTimer for backward compatibility)
     */
    updateSessionTime(isApiCall?: boolean): void;
    /**
     * Extend session (call refresh API)
     */
    extendSession(): void;
    /**
     * Get remaining time in milliseconds
     */
    getRemainingTimeMs(): number;
    /**
     * Get remaining time in seconds
     */
    getRemainingTimeSeconds(): number;
    /**
     * Check if in warning window
     */
    isInWarningWindow(): boolean;
    /**
     * Check if session is expired
     */
    isExpired(): boolean;
    /**
     * Get current timer state
     */
    getCurrentState(): TimerState;
    /**
     * Manual trigger for session expiry (e.g., from 401 response)
     */
    triggerExpiry(): void;
    /**
     * Check timer status and emit events
     */
    private checkTimer;
    /**
     * Update timer state subject
     */
    private updateTimerState;
    /**
     * Debug logging
     */
    private log;
    static ɵfac: i0.ɵɵFactoryDeclaration<FgsSessionTimerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FgsSessionTimerService>;
}
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