export declare enum ServicePriority {
    CRITICAL = 0,
    HIGH = 1,
    MEDIUM = 2,
    LOW = 3
}
export interface ServiceDefinition {
    name: string;
    priority: ServicePriority;
    dependencies: string[];
    initFunction: () => Promise<void>;
    lazy: boolean;
    preload: boolean;
}
export interface ConnectionPoolConfig {
    maxConnections: number;
    minConnections: number;
    acquireTimeout: number;
    idleTimeout: number;
    maxRetries: number;
}
export interface PoolConnection {
    id: number;
    type: 'http' | 'websocket';
    created: Date;
    lastUsed: Date;
    isActive: boolean;
}
export interface ConnectionPool {
    config: ConnectionPoolConfig;
    connections: Map<number, PoolConnection>;
    available: PoolConnection[];
    busy: Set<number>;
    acquire(): Promise<PoolConnection>;
    release(connection: PoolConnection): Promise<void>;
}
export interface StartupMetrics {
    totalStartupTime: number;
    configLoadTime: number;
    serviceInitTime: number;
    connectionPoolTime: number;
    servicesLoaded: number;
    servicesLazy: number;
    memoryUsage: number;
    targetMet: boolean;
}
export declare class StartupOptimizer {
    private static instance;
    private services;
    private initializedServices;
    private connectionPools;
    private performanceConfig;
    private startupMetrics;
    private startTime;
    private constructor();
    static getInstance(): StartupOptimizer;
    private registerCoreServices;
    registerService(service: ServiceDefinition): void;
    private initializeConnectionPools;
    optimizeStartup(): Promise<StartupMetrics>;
    private getServicesByPriority;
    private getPreloadServices;
    private getLazyServices;
    private initializeServicesInParallel;
    private initializeService;
    getConnectionPool(type: string): ConnectionPool | undefined;
    getStartupMetrics(): StartupMetrics | null;
    isServiceInitialized(serviceName: string): boolean;
    lazyLoadService(serviceName: string): Promise<void>;
}
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