import { OnModuleInit, OnModuleDestroy } from '@nestjs/common';
import { Observable } from 'rxjs';
import { MLAnalyticsService, MLAlert } from './ml-analytics.service';
import { AnalyticsService } from './analytics.service';
import { MemoryManagerService } from './memory-manager.service';
export interface AlertChannel {
    id: string;
    name: string;
    type: 'email' | 'slack' | 'teams' | 'webhook' | 'sms' | 'pagerduty';
    enabled: boolean;
    config: {
        url?: string;
        token?: string;
        email?: string;
        phone?: string;
        [key: string]: any;
    };
    severityFilter: ('info' | 'warning' | 'error' | 'critical')[];
    componentFilter?: string[];
    rateLimit?: {
        maxAlerts: number;
        timeWindow: number;
    };
}
export interface AlertRule {
    id: string;
    name: string;
    description: string;
    enabled: boolean;
    priority: number;
    conditions: {
        metric: string;
        operator: '>' | '<' | '==' | '!=' | '>=' | '<=';
        threshold: number;
        duration?: number;
        component?: string;
    }[];
    actions: {
        channelIds: string[];
        escalation?: {
            delayMinutes: number;
            channels: string[];
        };
        autoRemediation?: {
            enabled: boolean;
            actions: Array<{
                type: 'restart' | 'scale' | 'rollback' | 'cache_clear';
                config: any;
            }>;
        };
    };
    schedule?: {
        timezone: string;
        activeHours: {
            start: string;
            end: string;
        };
        activeDays: number[];
    };
}
export interface AlertHistory {
    id: string;
    alertId: string;
    ruleId: string | undefined;
    timestamp: Date;
    status: 'sent' | 'failed' | 'acknowledged' | 'resolved';
    channel: string;
    recipient: string | undefined;
    retryCount: number;
    error: string | undefined;
    responseTime: number | undefined;
}
export interface AlertAggregation {
    id: string;
    timestamp: Date;
    timeWindow: number;
    component: string;
    alertCount: number;
    severity: 'info' | 'warning' | 'error' | 'critical';
    types: string[];
    summary: string;
    consolidatedAlert: MLAlert;
}
export interface AlertMetrics {
    totalAlerts: number;
    alertsBySeverity: Record<string, number>;
    alertsByComponent: Record<string, number>;
    alertsByChannel: Record<string, number>;
    averageResponseTime: number;
    successRate: number;
    escalationRate: number;
    acknowledgedRate: number;
    falsePositiveRate: number;
}
export declare class AutomatedAlertingService implements OnModuleInit, OnModuleDestroy {
    private readonly mlAnalyticsService;
    private readonly analyticsService;
    private readonly memoryManager;
    private readonly logger;
    private subscriptions;
    private alertChannels;
    private alertRules;
    private rateLimitTracker;
    private readonly collectionIds;
    private readonly alertHistorySubject;
    private readonly aggregationSubject;
    private alertHistory;
    private readonly config;
    constructor(mlAnalyticsService: MLAnalyticsService, analyticsService: AnalyticsService, memoryManager: MemoryManagerService);
    onModuleInit(): Promise<void>;
    onModuleDestroy(): void;
    private initializeDefaultChannels;
    private initializeDefaultRules;
    private startAlertProcessing;
    private processAlert;
    private processAnomalyAlert;
    private processRegressionAlert;
    private processPredictiveAlert;
    private findMatchingRules;
    private executeAlertRule;
    private executeDefaultAlert;
    private sendAlert;
    private sendWebhookAlert;
    private sendEmailAlert;
    private sendSlackAlert;
    private retryAlert;
    private escalateAlert;
    private executeAutoRemediation;
    private isRateLimited;
    private isWithinSchedule;
    private parseTime;
    private cleanupOldHistory;
    private processAlertAggregation;
    private autoAcknowledgeOldAlerts;
    addAlertChannel(channel: AlertChannel): void;
    removeAlertChannel(channelId: string): boolean;
    addAlertRule(rule: AlertRule): void;
    removeAlertRule(ruleId: string): boolean;
    getAlertChannels(): AlertChannel[];
    getAlertRules(): AlertRule[];
    getAlertHistory(limit?: number): AlertHistory[];
    getAlertHistoryStream(): Observable<AlertHistory>;
    acknowledgeAlert(alertId: string): boolean;
    getAlertMetrics(): AlertMetrics;
    testAlertChannel(channelId: string): Promise<boolean>;
}