/**
 * Security Scanner Service
 *
 * Scans for security vulnerabilities, secrets, and dependency issues
 */
import type { SecurityScanResult, SecurityScanOptions, DependencyCheckResult, DependencyCheckOptions, SecretDetectionResult, SecretDetectionOptions } from "../types/security.js";
/**
 * Service for security scanning and vulnerability detection.
 *
 * Scans code for security issues (OWASP Top 10), checks dependencies
 * for vulnerabilities, and detects hardcoded secrets or credentials.
 */
export declare class SecurityService {
    private projectRoot;
    /** Directories to exclude from scanning */
    private static readonly EXCLUDE_DIRS;
    /** Security patterns for code scanning */
    private securityPatterns;
    /** Secret patterns for detection */
    private secretPatterns;
    constructor(projectRoot: string);
    /**
     * Initialize security and secret patterns
     */
    private initializePatterns;
    /**
     * Scan files for security issues
     */
    scanFiles(options?: SecurityScanOptions): Promise<SecurityScanResult>;
    /**
     * Check dependencies for vulnerabilities
     */
    checkDependencies(options?: DependencyCheckOptions): Promise<DependencyCheckResult>;
    /**
     * Detect secrets in files
     */
    detectSecrets(options?: SecretDetectionOptions): Promise<SecretDetectionResult>;
    /**
     * Scan a single file for security issues
     */
    private scanFile;
    /**
     * Scan file for secrets
     */
    private scanFileForSecrets;
    /**
     * Run npm audit
     */
    private runNpmAudit;
    /**
     * Parse npm audit JSON result
     */
    private parseNpmAuditResult;
    /**
     * Count outdated packages
     */
    private countOutdatedPackages;
    /**
     * Get source files for scanning
     */
    private getSourceFiles;
    /**
     * Walk directory recursively
     */
    private walkDirectory;
    /**
     * Check if file should be scanned
     */
    private isSourceFile;
    /**
     * Check if file should skip secret scanning
     */
    private shouldSkipSecretScan;
    /**
     * Get line number from character index
     */
    private getLineNumber;
    /**
     * Calculate Shannon entropy
     */
    private calculateEntropy;
    /**
     * Find high entropy strings in a line
     */
    private findHighEntropyStrings;
    /**
     * Redact secret for display
     */
    private redactSecret;
    /**
     * Get severity for secret type
     */
    private getSecretSeverity;
    /**
     * Map npm severity to our severity
     */
    private mapNpmSeverity;
    /**
     * Convert severity to number for comparison
     */
    private severityToNumber;
    /**
     * Filter issues by severity
     */
    private filterBySeverity;
    /**
     * Filter secrets by confidence
     */
    private filterByConfidence;
    /**
     * Count issues by severity
     */
    private countBySeverity;
    /**
     * Count vulnerabilities by severity
     */
    private countVulnBySeverity;
    /**
     * Count issues by category
     */
    private countByCategory;
    /**
     * Count secrets by type
     */
    private countBySecretType;
    /**
     * Calculate overall risk level
     */
    private calculateRiskLevel;
    /**
     * Generate scan summary
     */
    private generateScanSummary;
    /**
     * Generate dependency recommendations
     */
    private generateDependencyRecommendations;
    /**
     * Generate secret detection suggestions
     */
    private generateSecretSuggestions;
}
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