import type { Alert, AlertThresholds, AlertHistoryEntry, OperationRecord, SessionMetrics } from './types.js';
import { EventEmitter } from 'events';
import { pino } from 'pino';
export declare class AlertManager extends EventEmitter {
    private logger;
    private alertHistory;
    private alertThresholds;
    private enableAlerting;
    constructor(thresholds: AlertThresholds, enableAlerting: boolean, logger?: pino.Logger);
    checkOperationAlerts(record: OperationRecord, metrics: SessionMetrics): void;
    checkFallbackAlerts(fallbackTime: number, activations: number): void;
    checkAvailabilityAlerts(availability: number): void;
    raiseAlert(level: 'warning' | 'critical', message: string): void;
    getAlertHistory(since?: Date): AlertHistoryEntry[];
    getRecentAlerts(minutes?: number): Alert[];
    clearOldAlerts(retentionPeriod: number): void;
    getAlertCounts(): {
        warning: number;
        critical: number;
    };
    updateThresholds(thresholds: Partial<AlertThresholds>): void;
    setAlertingEnabled(enabled: boolean): void;
    clearAlerts(): void;
}
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