import { LogsInterceptorConfig } from './application/config/LogsInterceptorConfig';
export interface EnvironmentConfig {
    LOGS_TRANSPORT?: string;
    LOGS_URL?: string;
    LOGS_TENANT?: string;
    LOGS_TOKEN?: string;
    LOGS_APP_NAME?: string;
    LOGS_APP_VERSION?: string;
    LOGS_ENVIRONMENT?: string;
    LOGS_COMPRESSION?: string;
    LOGS_COMPRESSION_LEVEL?: string;
    LOGS_COMPRESSION_THRESHOLD?: string;
    LOGS_USE_WORKERS?: string;
    LOGS_MAX_WORKERS?: string;
    LOGS_CONNECTION_POOLING?: string;
    LOGS_MAX_SOCKETS?: string;
    LOGS_TIMEOUT?: string;
    LOGS_MAX_RETRIES?: string;
    LOGS_RETRY_DELAY?: string;
    LOGS_BUFFER_MAX_SIZE?: string;
    LOGS_BUFFER_FLUSH_INTERVAL?: string;
    LOGS_BUFFER_MAX_MEMORY_MB?: string;
    LOGS_BUFFER_MAX_AGE?: string;
    LOGS_BUFFER_AUTO_FLUSH?: string;
    LOGS_FILTER_LEVELS?: string;
    LOGS_FILTER_SAMPLING_RATE?: string;
    LOGS_FILTER_SANITIZE?: string;
    LOGS_FILTER_MAX_MESSAGE_LENGTH?: string;
    LOGS_FILTER_MAX_CONTEXT_BYTES?: string;
    LOGS_CIRCUIT_BREAKER_ENABLED?: string;
    LOGS_CIRCUIT_BREAKER_FAILURE_THRESHOLD?: string;
    LOGS_CIRCUIT_BREAKER_RESET_TIMEOUT?: string;
    LOGS_CIRCUIT_BREAKER_HALF_OPEN_REQUESTS?: string;
    LOGS_DLQ_ENABLED?: string;
    LOGS_DLQ_TYPE?: string;
    LOGS_DLQ_MAX_SIZE?: string;
    LOGS_DLQ_MAX_RETRIES?: string;
    LOGS_DLQ_BASE_PATH?: string;
    LOGS_MAX_CONCURRENT_FLUSHES?: string;
    LOGS_MAX_PENDING_BATCHES?: string;
    LOGS_WORKER_TIMEOUT?: string;
    LOGS_INTERCEPT_CONSOLE?: string;
    LOGS_PRESERVE_ORIGINAL_CONSOLE?: string;
    LOGS_ENABLE_METRICS?: string;
    LOGS_ENABLE_HEALTH_CHECK?: string;
    LOGS_DEBUG?: string;
    LOGS_SILENT_ERRORS?: string;
    LOGS_AUTO_INIT?: string;
    LOGS_ENABLED?: string;
    OTEL_LOGS_EXPORTER?: string;
    OTEL_EXPORTER_OTLP_ENDPOINT?: string;
    OTEL_EXPORTER_OTLP_HEADERS?: string;
    OTEL_EXPORTER_OTLP_LOGS_ENDPOINT?: string;
    OTEL_EXPORTER_OTLP_LOGS_HEADERS?: string;
    [key: string]: string | undefined;
}
export interface TransportOptions {
    type?: 'loki' | 'otlp';
    url: string;
    logsUrl?: string;
    tenantId?: string;
    authToken?: string;
    headers?: Record<string, string>;
    timeout?: number;
    maxRetries?: number;
    retryDelay?: number;
    compression?: 'none' | 'gzip' | 'brotli' | 'snappy' | boolean;
}
export declare function parseBool(value: string | undefined, defaultValue: boolean): boolean;
export declare function parseIntRange(value: string | undefined, defaultValue: number, min: number, max: number): number;
export declare function parseFloatRange(value: string | undefined, defaultValue: number, min: number, max: number): number;
export declare function isDebugEnabled(): boolean;
export declare function isSilentErrorsEnabled(): boolean;
export declare function internalDebug(message: string, context?: unknown): void;
export declare function internalWarn(message: string, context?: unknown): void;
export declare function internalError(message: string, context?: unknown): void;
/**
 * Safely stringify any value, handling circular references and non-serializable objects
 */
export declare function safeStringify(value: unknown, maxDepth?: number, maxBytes?: number): string;
/**
 * Detect sensitive data in a string
 */
export declare function detectSensitiveData(text: string, patterns: RegExp[]): boolean;
/**
 * Sanitize sensitive data from an object
 */
export declare function sanitizeData(data: Record<string, unknown>, sensitivePatterns: RegExp[]): Record<string, unknown>;
/**
 * Hash sensitive data for tracking without exposing it
 */
export declare function hashSensitiveData(data: string): string;
/**
 * Parse labels from environment variable string format
 * Format: "key1=value1,key2=value2"
 */
export declare function parseLabels(labelsString: string): Record<string, string>;
/**
 * Determine if a log should be sampled based on sampling rate
 */
export declare function shouldSample(rate: number): boolean;
/**
 * Enhanced sampling with support for different strategies
 */
export declare function shouldSampleAdvanced(rate: number, strategy?: 'random' | 'deterministic' | 'adaptive', key?: string): boolean;
/**
 * Format bytes to human readable string
 */
export declare function formatBytes(bytes: number): string;
/**
 * Calculate compression ratio
 */
export declare function calculateCompressionRatio(original: number, compressed: number): number;
/**
 * Load configuration from environment variables
 */
export declare function loadConfigFromEnv(env?: EnvironmentConfig): Partial<LogsInterceptorConfig>;
/**
 * Merge configurations with precedence: user config > env config > defaults
 */
export declare function mergeConfigs(userConfig: Partial<LogsInterceptorConfig>, envConfig: Partial<LogsInterceptorConfig>): Partial<LogsInterceptorConfig>;
/**
 * Create a correlation ID for request tracking
 */
export declare function createCorrelationId(): string;
/**
 * Extract metadata from Error objects
 */
export declare function extractErrorMetadata(error: Error): Record<string, unknown>;
/**
 * Parse stack trace to extract useful information
 */
export declare function parseStackTrace(stack: string): Array<{
    function: string;
    file: string;
    line: number;
    column: number;
}>;
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