import { HealthCheckService, HealthCheckResult } from "@nestjs/terminus";
import { Neo4jHealthIndicator } from "../indicators/neo4j.health";
import { RedisHealthIndicator } from "../indicators/redis.health";
import { S3HealthIndicator } from "../indicators/s3.health";
import { DiskHealthIndicator } from "../indicators/disk.health";
/**
 * Health Check Controller
 *
 * Provides health check endpoints for monitoring and orchestration.
 * All endpoints are PUBLIC (no authentication required).
 * Rate limiting is disabled for health endpoints.
 *
 * Endpoints:
 * - GET /health - Full health status with all dependency checks
 * - GET /health/live - Liveness probe (process is running)
 * - GET /health/ready - Readiness probe (can accept traffic)
 */
export declare class HealthController {
    private health;
    private neo4jHealth;
    private redisHealth;
    private s3Health;
    private diskHealth;
    constructor(health: HealthCheckService, neo4jHealth: Neo4jHealthIndicator, redisHealth: RedisHealthIndicator, s3Health: S3HealthIndicator, diskHealth: DiskHealthIndicator);
    /**
     * Full health check endpoint
     *
     * Checks all dependencies and returns detailed status.
     * Use for monitoring dashboards and detailed health analysis.
     *
     * @returns HealthCheckResult with status of all dependencies
     * - HTTP 200: All dependencies healthy
     * - HTTP 503: One or more dependencies unhealthy
     */
    check(): Promise<HealthCheckResult>;
    /**
     * Liveness probe endpoint
     *
     * Indicates if the application process is running.
     * Does NOT check external dependencies.
     *
     * Use for Kubernetes livenessProbe:
     * - If this fails, container should be restarted
     *
     * @returns HealthCheckResult
     * - HTTP 200: Process is alive
     */
    liveness(): Promise<HealthCheckResult>;
    /**
     * Readiness probe endpoint
     *
     * Indicates if the application can accept traffic.
     * Checks critical dependencies (Neo4j, Redis).
     *
     * Use for Kubernetes readinessProbe:
     * - If this fails, traffic should be routed elsewhere
     * - Container should NOT be restarted
     *
     * @returns HealthCheckResult
     * - HTTP 200: Ready to accept traffic
     * - HTTP 503: Not ready (dependency unavailable)
     */
    readiness(): Promise<HealthCheckResult>;
}
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