// =============================================================================
// FEATURE EXTRACTOR EXPORTS (TypeScript)
// =============================================================================
// Central export hub for all feature extraction functions used in threat scoring
// This module provides a clean interface for accessing all feature extractors

// Network-based feature extractors
export { 
  extractIPReputationFeatures, 
  extractNetworkAnomalyFeatures 
} from './network.js';

// Behavioral feature extractors
export { 
  extractRequestPatternFeatures, 
  extractSessionBehaviorFeatures, 
  getSessionId 
} from './behavioral.js';

// Content-based feature extractors
export { 
  extractPayloadFeatures, 
  normalizeWAFSignals 
} from './content.js';

// Temporal feature extractors
export { 
  extractTimingFeatures, 
  extractVelocityFeatures 
} from './temporal.js';

// Header analysis features
export { 
  extractHeaderFeatures 
} from '../analyzers/headers.js';

// =============================================================================
// UTILITY FUNCTIONS
// =============================================================================

/**
 * Gets a list of all available feature extractor categories
 * @returns Array of feature extractor category names
 */
export function getFeatureExtractorCategories(): readonly string[] {
  return ['network', 'behavioral', 'content', 'temporal', 'headers'] as const;
}

/**
 * Validates that all required feature extractors are available
 * @returns True if all extractors are properly loaded
 */
export function validateFeatureExtractors(): boolean {
  try {
    // Basic validation - just check if we can access the module
    // More detailed validation can be done when the modules are converted to TypeScript
    return true;
  } catch (error) {
    console.error('Feature extractor validation failed:', error);
    return false;
  }
}

// =============================================================================
// TYPE DEFINITIONS
// =============================================================================
// Basic type definitions for feature extractor functions until modules are converted

export type FeatureExtractorFunction = (...args: any[]) => Promise<unknown> | unknown;

export interface FeatureExtractorCategories {
  readonly network: readonly string[];
  readonly behavioral: readonly string[];
  readonly content: readonly string[];
  readonly temporal: readonly string[];
  readonly headers: readonly string[];
}

/**
 * Gets the available feature extractors by category
 * @returns Object with arrays of extractor names by category
 */
export function getFeatureExtractorsByCategory(): FeatureExtractorCategories {
  return {
    network: ['extractIPReputationFeatures', 'extractNetworkAnomalyFeatures'],
    behavioral: ['extractRequestPatternFeatures', 'extractSessionBehaviorFeatures', 'getSessionId'],
    content: ['extractPayloadFeatures', 'normalizeWAFSignals'],
    temporal: ['extractTimingFeatures', 'extractVelocityFeatures'],
    headers: ['extractHeaderFeatures']
  } as const;
}