optirs_bench/

comprehensive_security_auditor.rs

// Comprehensive Security Audit Engine
//
// This module provides advanced security auditing capabilities including dependency
// scanning, vulnerability detection, supply chain security analysis, and automated
// security monitoring for the optimization library and its plugins.

use crate::error::Result;
use serde::{Deserialize, Serialize};
use std::collections::{HashMap, HashSet};
use std::path::{Path, PathBuf};
use std::time::{Duration, SystemTime};

/// Main security audit engine
#[derive(Debug)]
pub struct ComprehensiveSecurityAuditor {
    /// Audit configuration
    config: SecurityAuditConfig,
    /// Dependency scanner
    dependency_scanner: DependencyScanner,
    /// Vulnerability database
    vulnerability_db: VulnerabilityDatabase,
    /// Policy enforcer
    policy_enforcer: SecurityPolicyEnforcer,
    /// Report generator
    report_generator: SecurityReportGenerator,
    /// Audit history
    audit_history: Vec<SecurityAuditResult>,
}

/// Security audit configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityAuditConfig {
    /// Enable dependency vulnerability scanning
    pub enable_dependency_scanning: bool,
    /// Enable static code analysis
    pub enable_static_analysis: bool,
    /// Enable license compliance checking
    pub enable_license_compliance: bool,
    /// Enable supply chain analysis
    pub enable_supply_chain_analysis: bool,
    /// Enable secret detection
    pub enable_secret_detection: bool,
    /// Enable configuration security checks
    pub enable_config_security: bool,
    /// Vulnerability database update frequency
    pub db_update_frequency: Duration,
    /// Maximum audit time
    pub max_audit_time: Duration,
    /// Severity threshold for alerts
    pub alert_threshold: SecuritySeverity,
    /// Audit report format
    pub report_format: ReportFormat,
    /// Enable automatic remediation suggestions
    pub enable_auto_remediation: bool,
    /// Trusted sources for dependencies
    pub trusted_sources: Vec<String>,
    /// Excluded paths from scanning
    pub excluded_paths: Vec<PathBuf>,
    /// Custom security rules
    pub custom_rules: Vec<CustomSecurityRule>,
}

/// Custom security rule definition
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CustomSecurityRule {
    /// Rule ID
    pub id: String,
    /// Rule name
    pub name: String,
    /// Rule description
    pub description: String,
    /// Pattern to match (regex)
    pub pattern: String,
    /// Severity level
    pub severity: SecuritySeverity,
    /// File types to check
    pub file_types: Vec<String>,
    /// Remediation suggestion
    pub remediation: Option<String>,
}

/// Security severity levels
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum SecuritySeverity {
    Info,
    Low,
    Medium,
    High,
    Critical,
}

/// Report format options
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ReportFormat {
    Json,
    Yaml,
    Html,
    Pdf,
    Markdown,
    Sarif,
}

/// Comprehensive security audit result
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityAuditResult {
    /// Audit timestamp
    pub timestamp: SystemTime,
    /// Audit duration
    pub duration: Duration,
    /// Overall security score (0.0 to 1.0)
    pub security_score: f64,
    /// Dependency scan results
    pub dependency_results: DependencyScanResult,
    /// Static analysis results
    pub static_analysis_results: StaticAnalysisResult,
    /// License compliance results
    pub license_compliance_results: LicenseComplianceResult,
    /// Supply chain analysis results
    pub supply_chain_results: SupplyChainAnalysisResult,
    /// Secret detection results
    pub secret_detection_results: SecretDetectionResult,
    /// Configuration security results
    pub config_security_results: ConfigSecurityResult,
    /// Policy compliance results
    pub policy_compliance_results: PolicyComplianceResult,
    /// Remediation suggestions
    pub remediation_suggestions: Vec<RemediationSuggestion>,
    /// Risk assessment
    pub risk_assessment: RiskAssessment,
}

/// Dependency scanner for vulnerability detection
#[derive(Debug)]
#[allow(dead_code)]
pub struct DependencyScanner {
    /// Scanner configuration
    config: DependencyScanConfig,
    /// Vulnerability database client
    vuln_db_client: VulnerabilityDatabaseClient,
    /// License database
    license_db: LicenseDatabase,
    /// Package metadata cache
    package_cache: HashMap<String, PackageMetadata>,
}

/// Dependency scan configuration
#[derive(Debug, Clone)]
pub struct DependencyScanConfig {
    /// Scan direct dependencies
    pub scan_direct_deps: bool,
    /// Scan transitive dependencies
    pub scan_transitive_deps: bool,
    /// Maximum dependency depth
    pub max_depth: usize,
    /// Check for outdated dependencies
    pub check_outdated: bool,
    /// Minimum version requirements
    pub min_versions: HashMap<String, String>,
    /// Blocked dependencies
    pub blocked_dependencies: HashSet<String>,
    /// License allowlist
    pub allowed_licenses: HashSet<String>,
    /// License blocklist
    pub blocked_licenses: HashSet<String>,
}

/// Dependency scan result
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DependencyScanResult {
    /// Total dependencies scanned
    pub total_dependencies: usize,
    /// Vulnerable dependencies found
    pub vulnerable_dependencies: Vec<VulnerableDependency>,
    /// Outdated dependencies
    pub outdated_dependencies: Vec<OutdatedDependency>,
    /// License violations
    pub license_violations: Vec<LicenseViolation>,
    /// Supply chain risks
    pub supply_chain_risks: Vec<SupplyChainRisk>,
    /// Dependency tree analysis
    pub dependency_tree: DependencyTree,
    /// Risk score (0.0 to 1.0)
    pub risk_score: f64,
}

/// Vulnerable dependency information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VulnerableDependency {
    /// Package name
    pub name: String,
    /// Current version
    pub current_version: String,
    /// Vulnerability details
    pub vulnerabilities: Vec<Vulnerability>,
    /// Affected version range
    pub affected_versions: String,
    /// Fixed version
    pub fixed_version: Option<String>,
    /// Severity
    pub severity: SecuritySeverity,
    /// CVE identifiers
    pub cve_ids: Vec<String>,
}

/// Vulnerability information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Vulnerability {
    /// Vulnerability ID
    pub id: String,
    /// Title/summary
    pub title: String,
    /// Description
    pub description: String,
    /// Severity
    pub severity: SecuritySeverity,
    /// CVSS score
    pub cvss_score: Option<f64>,
    /// Publication date
    pub published: SystemTime,
    /// Discovery date
    pub discovered: Option<SystemTime>,
    /// Affected versions
    pub affected_versions: String,
    /// Patched versions
    pub patched_versions: Vec<String>,
    /// References
    pub references: Vec<String>,
    /// Categories
    pub categories: Vec<VulnerabilityCategory>,
}

/// Vulnerability categories
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum VulnerabilityCategory {
    CodeExecution,
    MemoryCorruption,
    InformationLeak,
    DenialOfService,
    PrivilegeEscalation,
    AuthenticationBypass,
    Cryptographic,
    InputValidation,
    Other(String),
}

/// Static analysis result
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StaticAnalysisResult {
    /// Security issues found
    pub security_issues: Vec<SecurityIssue>,
    /// Code quality issues
    pub quality_issues: Vec<QualityIssue>,
    /// Files scanned
    pub files_scanned: usize,
    /// Lines of code analyzed
    pub lines_analyzed: usize,
    /// Analysis duration
    pub analysis_duration: Duration,
}

/// Security issue found in static analysis
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityIssue {
    /// Issue ID
    pub id: String,
    /// Issue type
    pub issue_type: SecurityIssueType,
    /// Severity
    pub severity: SecuritySeverity,
    /// File location
    pub file: PathBuf,
    /// Line number
    pub line: usize,
    /// Column number
    pub column: Option<usize>,
    /// Description
    pub description: String,
    /// Code snippet
    pub code_snippet: Option<String>,
    /// Remediation suggestion
    pub remediation: Option<String>,
    /// Rule ID that triggered this issue
    pub rule_id: String,
}

/// Types of security issues
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum SecurityIssueType {
    UnsafeCode,
    HardcodedSecret,
    WeakCryptography,
    SqlInjection,
    PathTraversal,
    CommandInjection,
    BufferOverflow,
    IntegerOverflow,
    UseAfterFree,
    DoubleFree,
    UnvalidatedInput,
    InformationLeak,
    InsecureDeserialization,
    Other(String),
}

/// Vulnerability database for tracking known security issues
#[derive(Debug)]
#[allow(dead_code)]
pub struct VulnerabilityDatabase {
    /// Database configuration
    config: VulnerabilityDatabaseConfig,
    /// Local vulnerability cache
    local_cache: HashMap<String, CachedVulnerability>,
    /// Database update status
    last_update: SystemTime,
    /// Update frequency
    update_frequency: Duration,
    /// External database sources
    external_sources: Vec<ExternalVulnerabilitySource>,
}

/// Vulnerability database configuration
#[derive(Debug, Clone)]
pub struct VulnerabilityDatabaseConfig {
    /// Enable automatic updates
    pub auto_update: bool,
    /// Update check frequency
    pub update_frequency: Duration,
    /// Cache size limit
    pub cache_size_limit: usize,
    /// Retention period for cached data
    pub cache_retention: Duration,
    /// External data sources
    pub external_sources: Vec<String>,
    /// API keys for external services
    pub api_keys: HashMap<String, String>,
}

/// Cached vulnerability information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CachedVulnerability {
    /// Vulnerability data
    pub vulnerability: Vulnerability,
    /// Cache timestamp
    pub cached_at: SystemTime,
    /// Data source
    pub source: String,
    /// Verification status
    pub verified: bool,
}

/// External vulnerability data source
#[derive(Debug, Clone)]
pub struct ExternalVulnerabilitySource {
    /// Source name
    pub name: String,
    /// API endpoint
    pub endpoint: String,
    /// API key
    pub api_key: Option<String>,
    /// Update frequency
    pub update_frequency: Duration,
    /// Priority level
    pub priority: u8,
}

/// Security policy enforcer
#[derive(Debug)]
#[allow(dead_code)]
pub struct SecurityPolicyEnforcer {
    /// Active policies
    policies: Vec<SecurityPolicy>,
    /// Policy evaluation engine
    evaluator: PolicyEvaluator,
    /// Violation tracking
    violations: Vec<PolicyViolation>,
}

/// Security policy definition
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityPolicy {
    /// Policy ID
    pub id: String,
    /// Policy name
    pub name: String,
    /// Policy description
    pub description: String,
    /// Policy rules
    pub rules: Vec<PolicyRule>,
    /// Enforcement level
    pub enforcement: EnforcementLevel,
    /// Applicable scopes
    pub scopes: Vec<PolicyScope>,
}

/// Policy rule definition
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PolicyRule {
    /// Rule ID
    pub id: String,
    /// Rule condition
    pub condition: PolicyCondition,
    /// Required action
    pub action: PolicyAction,
    /// Rule severity
    pub severity: SecuritySeverity,
}

/// Policy enforcement levels
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum EnforcementLevel {
    /// Advisory only - log violations
    Advisory,
    /// Warning - log and report violations
    Warning,
    /// Enforcing - block violations
    Enforcing,
    /// Panic - stop execution on violations
    Panic,
}

/// Risk assessment result
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RiskAssessment {
    /// Overall risk level
    pub overall_risk: RiskLevel,
    /// Risk factors
    pub risk_factors: Vec<RiskFactor>,
    /// Risk score (0.0 to 1.0)
    pub risk_score: f64,
    /// Recommendations
    pub recommendations: Vec<String>,
    /// Risk mitigation strategies
    pub mitigation_strategies: Vec<MitigationStrategy>,
}

/// Risk levels
#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
pub enum RiskLevel {
    Minimal,
    Low,
    Medium,
    High,
    Critical,
}

/// Risk factor contributing to overall assessment
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RiskFactor {
    /// Factor name
    pub name: String,
    /// Factor description
    pub description: String,
    /// Impact level
    pub impact: f64,
    /// Likelihood
    pub likelihood: f64,
    /// Risk contribution
    pub risk_contribution: f64,
}

/// Risk mitigation strategy
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MitigationStrategy {
    /// Strategy name
    pub name: String,
    /// Strategy description
    pub description: String,
    /// Implementation steps
    pub steps: Vec<String>,
    /// Estimated effort
    pub effort: EffortLevel,
    /// Expected risk reduction
    pub risk_reduction: f64,
}

/// Implementation effort levels
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum EffortLevel {
    Minimal,
    Low,
    Medium,
    High,
    Extensive,
}

impl ComprehensiveSecurityAuditor {
    /// Create a new security auditor
    pub fn new(config: SecurityAuditConfig) -> Self {
        let dependency_scanner = DependencyScanner::new(DependencyScanConfig::default());
        let vulnerability_db = VulnerabilityDatabase::new(VulnerabilityDatabaseConfig::default());
        let policy_enforcer = SecurityPolicyEnforcer::new();
        let report_generator = SecurityReportGenerator::new();

        Self {
            config,
            dependency_scanner,
            vulnerability_db,
            policy_enforcer,
            report_generator,
            audit_history: Vec::new(),
        }
    }

    /// Run comprehensive security audit
    pub fn audit_project<P: AsRef<Path>>(&mut self, projectpath: P) -> Result<SecurityAuditResult> {
        let start_time = std::time::Instant::now();
        let projectpath = projectpath.as_ref();

        // Update vulnerability database if needed
        self.update_vulnerability_database()?;

        // Initialize audit result
        let mut auditresult = SecurityAuditResult {
            timestamp: SystemTime::now(),
            duration: Duration::from_secs(0),
            security_score: 0.0,
            dependency_results: DependencyScanResult::default(),
            static_analysis_results: StaticAnalysisResult::default(),
            license_compliance_results: LicenseComplianceResult::default(),
            supply_chain_results: SupplyChainAnalysisResult::default(),
            secret_detection_results: SecretDetectionResult::default(),
            config_security_results: ConfigSecurityResult::default(),
            policy_compliance_results: PolicyComplianceResult::default(),
            remediation_suggestions: Vec::new(),
            risk_assessment: RiskAssessment::default(),
        };

        // Run dependency scanning
        if self.config.enable_dependency_scanning {
            auditresult.dependency_results =
                self.dependency_scanner.scan_dependencies(projectpath)?;
        }

        // Run static analysis
        if self.config.enable_static_analysis {
            auditresult.static_analysis_results = self.run_static_analysis(projectpath)?;
        }

        // Run license compliance check
        if self.config.enable_license_compliance {
            auditresult.license_compliance_results = self.check_license_compliance(projectpath)?;
        }

        // Run supply chain analysis
        if self.config.enable_supply_chain_analysis {
            auditresult.supply_chain_results = self.analyze_supply_chain(projectpath)?;
        }

        // Run secret detection
        if self.config.enable_secret_detection {
            auditresult.secret_detection_results = self.detect_secrets(projectpath)?;
        }

        // Run configuration security checks
        if self.config.enable_config_security {
            auditresult.config_security_results = self.check_config_security(projectpath)?;
        }

        // Check policy compliance
        auditresult.policy_compliance_results =
            self.policy_enforcer.check_compliance(&auditresult)?;

        // Generate remediation suggestions
        if self.config.enable_auto_remediation {
            auditresult.remediation_suggestions =
                self.generate_remediation_suggestions(&auditresult)?;
        }

        // Perform risk assessment
        auditresult.risk_assessment = self.assess_risk(&auditresult)?;

        // Calculate overall security score
        auditresult.security_score = self.calculate_security_score(&auditresult);

        // Set audit duration
        auditresult.duration = start_time.elapsed();

        // Store in audit history
        self.audit_history.push(auditresult.clone());

        // Generate alerts if necessary
        self.check_alerts(&auditresult)?;

        Ok(auditresult)
    }

    /// Update vulnerability database from external sources
    pub fn update_vulnerability_database(&mut self) -> Result<()> {
        if self.vulnerability_db.needs_update() {
            self.vulnerability_db.update_from_sources()?;
        }
        Ok(())
    }

    /// Run automated dependency scanning with RustSec Advisory Database
    pub fn scan_dependencies_with_rustsec(
        &mut self,
        projectpath: &Path,
    ) -> Result<DependencyScanResult> {
        let _start_time = std::time::Instant::now();
        let mut vulnerable_dependencies = Vec::new();
        let mut outdated_dependencies = Vec::new();

        // Read Cargo.toml to get dependencies
        let cargo_toml_path = projectpath.join("Cargo.toml");
        if !cargo_toml_path.exists() {
            return Ok(DependencyScanResult::default());
        }

        let cargocontent = std::fs::read_to_string(&cargo_toml_path)?;

        // Parse Cargo.toml for dependencies (simplified parsing)
        let dependencies = self.parse_cargo_dependencies(&cargocontent)?;
        let total_dependencies = dependencies.len();

        // Check each dependency against RustSec Advisory Database
        for (depname, version) in dependencies {
            // Simulate vulnerability checking
            if self.is_vulnerable_dependency(&depname, &version) {
                let vulnerability = Vulnerability {
                    id: "RUSTSEC-XXXX-XXXX".to_string(),
                    title: format!("Vulnerability in {}", depname),
                    description: format!(
                        "Security vulnerability found in {} version {}",
                        depname, version
                    ),
                    severity: SecuritySeverity::High,
                    cvss_score: Some(7.5),
                    published: SystemTime::now(),
                    discovered: None,
                    affected_versions: format!("<= {}", version),
                    patched_versions: vec![format!("> {}", version)],
                    references: vec![format!("https://rustsec.org/advisories/{}", depname)],
                    categories: vec![VulnerabilityCategory::Other("General".to_string())],
                };

                vulnerable_dependencies.push(VulnerableDependency {
                    name: depname.clone(),
                    current_version: version.clone(),
                    vulnerabilities: vec![vulnerability],
                    affected_versions: format!("<= {}", version),
                    fixed_version: Some(format!("> {}", version)),
                    severity: SecuritySeverity::High,
                    cve_ids: vec!["CVE-2024-XXXX".to_string()],
                });
            }

            // Check if dependency is outdated
            if self.is_outdated_dependency(&depname, &version) {
                outdated_dependencies.push(OutdatedDependency {
                    name: depname,
                    current_version: version,
                    latest_version: "latest".to_string(), // Would be fetched from crates.io
                });
            }
        }

        let risk_score =
            self.calculate_dependency_risk_score(&vulnerable_dependencies, &outdated_dependencies);

        Ok(DependencyScanResult {
            total_dependencies,
            vulnerable_dependencies,
            outdated_dependencies,
            license_violations: Vec::new(),
            supply_chain_risks: Vec::new(),
            dependency_tree: DependencyTree::default(),
            risk_score,
        })
    }

    /// Parse Cargo.toml dependencies (simplified)
    fn parse_cargo_dependencies(&self, cargocontent: &str) -> Result<Vec<(String, String)>> {
        let mut dependencies = Vec::new();
        let mut in_dependencies_section = false;

        for line in cargocontent.lines() {
            let line = line.trim();

            if line == "[dependencies]" {
                in_dependencies_section = true;
                continue;
            }

            if line.starts_with('[') && line != "[dependencies]" {
                in_dependencies_section = false;
                continue;
            }

            if in_dependencies_section && line.contains('=') {
                let parts: Vec<&str> = line.split('=').collect();
                if parts.len() >= 2 {
                    let depname = parts[0].trim().to_string();
                    let version = parts[1].trim().trim_matches('"').to_string();
                    dependencies.push((depname, version));
                }
            }
        }

        Ok(dependencies)
    }

    /// Check if dependency has known vulnerabilities (simplified check)
    fn is_vulnerable_dependency(&self, depname: &str, version: &str) -> bool {
        // Simulate vulnerability database lookup
        // In real implementation, this would query RustSec Advisory Database
        let known_vulnerable = ["old-time", "chrono", "serde_yaml"];
        known_vulnerable.contains(&depname)
    }

    /// Check if dependency is outdated (simplified check)
    fn is_outdated_dependency(&self, depname: &str, version: &str) -> bool {
        // Simulate version checking against crates.io
        // In real implementation, this would query crates.io API
        version.starts_with("0.") && depname.len() > 5
    }

    /// Calculate risk score for dependencies
    fn calculate_dependency_risk_score(
        &self,
        vulnerable_deps: &[VulnerableDependency],
        outdated_deps: &[OutdatedDependency],
    ) -> f64 {
        let vuln_penalty = vulnerable_deps.len() as f64 * 0.3;
        let outdated_penalty = outdated_deps.len() as f64 * 0.1;
        (vuln_penalty + outdated_penalty).min(1.0)
    }

    /// Run static analysis on project files
    fn run_static_analysis(&self, projectpath: &Path) -> Result<StaticAnalysisResult> {
        let start_time = std::time::Instant::now();
        let mut security_issues = Vec::new();
        let quality_issues = Vec::new();
        let mut files_scanned = 0;
        let mut lines_analyzed = 0;

        // Find and scan Rust source files
        let rust_files = self.find_rust_files(projectpath)?;

        for filepath in rust_files {
            if self.is_excluded_path(&filepath) {
                continue;
            }

            let content = std::fs::read_to_string(&filepath)?;
            let file_lines = content.lines().count();
            lines_analyzed += file_lines;
            files_scanned += 1;

            // Analyze file for security issues
            let mut file_issues = self.analyze_file_security(&filepath, &content)?;
            security_issues.append(&mut file_issues);

            // Apply custom security rules
            let mut custom_issues = self.apply_custom_rules(&filepath, &content)?;
            security_issues.append(&mut custom_issues);
        }

        Ok(StaticAnalysisResult {
            security_issues,
            quality_issues,
            files_scanned,
            lines_analyzed,
            analysis_duration: start_time.elapsed(),
        })
    }

    /// Analyze file for security issues
    fn analyze_file_security(&self, filepath: &Path, content: &str) -> Result<Vec<SecurityIssue>> {
        let mut issues = Vec::new();

        for (line_num, line) in content.lines().enumerate() {
            // Check for unsafe code blocks
            if line.trim_start().starts_with("unsafe") {
                issues.push(SecurityIssue {
                    id: format!("unsafe_code_{}", line_num),
                    issue_type: SecurityIssueType::UnsafeCode,
                    severity: SecuritySeverity::Medium,
                    file: filepath.to_path_buf(),
                    line: line_num + 1,
                    column: Some(line.find("unsafe").unwrap_or(0)),
                    description: "Unsafe code block detected - review for memory safety"
                        .to_string(),
                    code_snippet: Some(line.to_string()),
                    remediation: Some(
                        "Ensure unsafe code is properly justified and reviewed".to_string(),
                    ),
                    rule_id: "SEC001".to_string(),
                });
            }

            // Check for hardcoded secrets (basic patterns)
            if self.contains_potential_secret(line) {
                issues.push(SecurityIssue {
                    id: format!("secret_{}", line_num),
                    issue_type: SecurityIssueType::HardcodedSecret,
                    severity: SecuritySeverity::High,
                    file: filepath.to_path_buf(),
                    line: line_num + 1,
                    column: None,
                    description: "Potential hardcoded secret detected".to_string(),
                    code_snippet: Some(self.sanitize_secret_in_line(line)),
                    remediation: Some(
                        "Move secrets to environment variables or secure configuration".to_string(),
                    ),
                    rule_id: "SEC002".to_string(),
                });
            }

            // Check for potential command injection
            if line.contains("Command::new") || line.contains("process::Command") {
                issues.push(SecurityIssue {
                    id: format!("command_injection_{}", line_num),
                    issue_type: SecurityIssueType::CommandInjection,
                    severity: SecuritySeverity::Medium,
                    file: filepath.to_path_buf(),
                    line: line_num + 1,
                    column: None,
                    description: "Command execution detected - ensure input validation".to_string(),
                    code_snippet: Some(line.to_string()),
                    remediation: Some("Validate and sanitize all command arguments".to_string()),
                    rule_id: "SEC003".to_string(),
                });
            }

            // Check for weak cryptography
            if self.uses_weak_crypto(line) {
                issues.push(SecurityIssue {
                    id: format!("weak_crypto_{}", line_num),
                    issue_type: SecurityIssueType::WeakCryptography,
                    severity: SecuritySeverity::High,
                    file: filepath.to_path_buf(),
                    line: line_num + 1,
                    column: None,
                    description: "Weak cryptographic algorithm detected".to_string(),
                    code_snippet: Some(line.to_string()),
                    remediation: Some("Use modern, secure cryptographic algorithms".to_string()),
                    rule_id: "SEC004".to_string(),
                });
            }
        }

        Ok(issues)
    }

    /// Apply custom security rules to file content
    fn apply_custom_rules(&self, filepath: &Path, content: &str) -> Result<Vec<SecurityIssue>> {
        let mut issues = Vec::new();

        for rule in &self.config.custom_rules {
            // Check if rule applies to this file type
            if let Some(extension) = filepath.extension() {
                let ext_str = extension.to_str().unwrap_or("");
                if !rule.file_types.is_empty() && !rule.file_types.contains(&ext_str.to_string()) {
                    continue;
                }
            }

            // Apply regex pattern
            for (line_num, line) in content.lines().enumerate() {
                if line.to_lowercase().contains(&rule.pattern.to_lowercase()) {
                    issues.push(SecurityIssue {
                        id: format!("custom_{}_{}", rule.id, line_num),
                        issue_type: SecurityIssueType::Other(rule.name.clone()),
                        severity: rule.severity,
                        file: filepath.to_path_buf(),
                        line: line_num + 1,
                        column: None,
                        description: rule.description.clone(),
                        code_snippet: Some(line.to_string()),
                        remediation: rule.remediation.clone(),
                        rule_id: rule.id.clone(),
                    });
                }
            }
        }

        Ok(issues)
    }

    /// Check for potential secrets in code line
    fn contains_potential_secret(&self, line: &str) -> bool {
        let secret_indicators = [
            "password",
            "secret",
            "token",
            "api_key",
            "private_key",
            "access_key",
            "auth_token",
            "bearer",
            "jwt",
        ];

        let line_lower = line.to_lowercase();

        // Look for patterns like: variable = "secret_value"
        if line_lower.contains('=') && (line_lower.contains('"') || line_lower.contains('\'')) {
            for indicator in &secret_indicators {
                if line_lower.contains(indicator) {
                    return true;
                }
            }

            // Check for long random-looking strings
            if let Some(quote_start) = line.find('"') {
                if let Some(quote_end) = line[quote_start + 1..].find('"') {
                    let potential_secret = &line[quote_start + 1..quote_start + 1 + quote_end];
                    if potential_secret.len() > 16
                        && potential_secret.chars().any(|c| c.is_ascii_alphanumeric())
                    {
                        return true;
                    }
                }
            }
        }

        false
    }

    /// Sanitize secret in code line for safe reporting
    fn sanitize_secret_in_line(&self, line: &str) -> String {
        let mut sanitized = line.to_string();

        // Replace quoted strings that might be secrets
        if let Some(quote_start) = sanitized.find('"') {
            if let Some(quote_end) = sanitized[quote_start + 1..].find('"') {
                let before = &sanitized[..quote_start + 1];
                let after = &sanitized[quote_start + 1 + quote_end..];
                sanitized = format!("{}[REDACTED]{}", before, after);
            }
        }

        sanitized
    }

    /// Check if line uses weak cryptography
    fn uses_weak_crypto(&self, line: &str) -> bool {
        let weak_crypto_patterns = ["md5", "sha1", "des", "3des", "rc4", "md4"];

        let line_lower = line.to_lowercase();
        weak_crypto_patterns
            .iter()
            .any(|pattern| line_lower.contains(pattern))
    }

    /// Find all Rust source files in project
    fn find_rust_files(&self, projectpath: &Path) -> Result<Vec<PathBuf>> {
        let mut rust_files = Vec::new();

        fn visit_dir(dir: &Path, files: &mut Vec<PathBuf>) -> std::io::Result<()> {
            for entry in std::fs::read_dir(dir)? {
                let entry = entry?;
                let path = entry.path();

                if path.is_dir() {
                    // Skip common non-source directories
                    if let Some(dir_name) = path.file_name().and_then(|n| n.to_str()) {
                        if ["target", ".git", "node_modules"].contains(&dir_name) {
                            continue;
                        }
                    }
                    visit_dir(&path, files)?;
                } else if let Some(extension) = path.extension() {
                    if extension == "rs" {
                        files.push(path);
                    }
                }
            }
            Ok(())
        }

        visit_dir(projectpath, &mut rust_files)?;
        Ok(rust_files)
    }

    /// Check if path should be excluded from scanning
    fn is_excluded_path(&self, path: &Path) -> bool {
        self.config.excluded_paths.iter().any(|excluded| {
            path.starts_with(excluded)
                || path
                    .components()
                    .any(|component| component.as_os_str() == excluded.as_os_str())
        })
    }

    /// Calculate overall security score based on audit results
    fn calculate_security_score(&self, auditresult: &SecurityAuditResult) -> f64 {
        let mut score = 1.0;

        // Dependency vulnerabilities penalty
        let critical_vulns = auditresult
            .dependency_results
            .vulnerable_dependencies
            .iter()
            .filter(|dep| dep.severity == SecuritySeverity::Critical)
            .count();
        let high_vulns = auditresult
            .dependency_results
            .vulnerable_dependencies
            .iter()
            .filter(|dep| dep.severity == SecuritySeverity::High)
            .count();

        score -= critical_vulns as f64 * 0.2;
        score -= high_vulns as f64 * 0.1;

        // Static analysis issues penalty
        let critical_issues = auditresult
            .static_analysis_results
            .security_issues
            .iter()
            .filter(|issue| issue.severity == SecuritySeverity::Critical)
            .count();
        let high_issues = auditresult
            .static_analysis_results
            .security_issues
            .iter()
            .filter(|issue| issue.severity == SecuritySeverity::High)
            .count();

        score -= critical_issues as f64 * 0.15;
        score -= high_issues as f64 * 0.08;

        // Secret detection penalty
        score -= auditresult.secret_detection_results.secrets_found.len() as f64 * 0.1;

        // License compliance penalty
        score -= auditresult.license_compliance_results.violations.len() as f64 * 0.05;

        // Policy violations penalty
        let critical_violations = auditresult
            .policy_compliance_results
            .violations
            .iter()
            .filter(|v| v.severity == SecuritySeverity::Critical)
            .count();
        score -= critical_violations as f64 * 0.1;

        score.clamp(0.0, 1.0)
    }

    /// Generate remediation suggestions based on audit findings
    fn generate_remediation_suggestions(
        &self,
        auditresult: &SecurityAuditResult,
    ) -> Result<Vec<RemediationSuggestion>> {
        let mut suggestions = Vec::new();

        // Suggestions for vulnerable dependencies
        for vuln_dep in &auditresult.dependency_results.vulnerable_dependencies {
            if let Some(fixed_version) = &vuln_dep.fixed_version {
                suggestions.push(RemediationSuggestion {
                    id: format!("dep_update_{}", vuln_dep.name),
                    title: format!("Update {} to secure version", vuln_dep.name),
                    description: format!(
                        "Update {} from {} to {} to fix security vulnerabilities",
                        vuln_dep.name, vuln_dep.current_version, fixed_version
                    ),
                    priority: match vuln_dep.severity {
                        SecuritySeverity::Critical => RemediationPriority::Critical,
                        SecuritySeverity::High => RemediationPriority::High,
                        SecuritySeverity::Medium => RemediationPriority::Medium,
                        SecuritySeverity::Low => RemediationPriority::Low,
                        SecuritySeverity::Info => RemediationPriority::Low,
                    },
                    effort: EffortLevel::Low,
                    steps: vec![
                        format!(
                            "Update Cargo.toml to use {} = \"{}\"",
                            vuln_dep.name, fixed_version
                        ),
                        "Run cargo update".to_string(),
                        "Test the application thoroughly".to_string(),
                    ],
                    automated: true,
                });
            }
        }

        // Suggestions for static analysis issues
        for issue in &auditresult.static_analysis_results.security_issues {
            if let Some(remediation) = &issue.remediation {
                suggestions.push(RemediationSuggestion {
                    id: format!("static_{}", issue.id),
                    title: format!("Fix security issue: {}", issue.description),
                    description: remediation.clone(),
                    priority: match issue.severity {
                        SecuritySeverity::Critical => RemediationPriority::Critical,
                        SecuritySeverity::High => RemediationPriority::High,
                        SecuritySeverity::Medium => RemediationPriority::Medium,
                        SecuritySeverity::Low => RemediationPriority::Low,
                        SecuritySeverity::Info => RemediationPriority::Low,
                    },
                    effort: EffortLevel::Medium,
                    steps: vec![
                        format!("Review code at {}:{}", issue.file.display(), issue.line),
                        remediation.clone(),
                        "Test the fix thoroughly".to_string(),
                    ],
                    automated: false,
                });
            }
        }

        // Suggestions for secrets
        for secret in &auditresult.secret_detection_results.secrets_found {
            suggestions.push(RemediationSuggestion {
                id: format!("secret_{}", secret.id),
                title: "Remove hardcoded secret".to_string(),
                description:
                    "Move hardcoded secret to environment variable or secure configuration"
                        .to_string(),
                priority: RemediationPriority::High,
                effort: EffortLevel::Medium,
                steps: vec![
                    "Remove the hardcoded secret from source code".to_string(),
                    "Add the secret as an environment variable".to_string(),
                    "Update code to read from environment".to_string(),
                    "Rotate the secret if it was committed to version control".to_string(),
                ],
                automated: false,
            });
        }

        Ok(suggestions)
    }

    /// Assess overall security risk
    fn assess_risk(&self, auditresult: &SecurityAuditResult) -> Result<RiskAssessment> {
        let mut risk_factors = Vec::new();
        let mut total_risk = 0.0;

        // Vulnerability risk
        let vuln_count = auditresult.dependency_results.vulnerable_dependencies.len();
        if vuln_count > 0 {
            let vuln_risk = (vuln_count as f64 * 0.1).min(0.8);
            risk_factors.push(RiskFactor {
                name: "Dependency Vulnerabilities".to_string(),
                description: format!("{} vulnerable dependencies found", vuln_count),
                impact: 0.8,
                likelihood: 0.9,
                risk_contribution: vuln_risk,
            });
            total_risk += vuln_risk;
        }

        // Security issues risk
        let issue_count = auditresult.static_analysis_results.security_issues.len();
        if issue_count > 0 {
            let issue_risk = (issue_count as f64 * 0.05).min(0.6);
            risk_factors.push(RiskFactor {
                name: "Static Analysis Issues".to_string(),
                description: format!("{} security issues found in code", issue_count),
                impact: 0.6,
                likelihood: 0.7,
                risk_contribution: issue_risk,
            });
            total_risk += issue_risk;
        }

        // Secret exposure risk
        let secret_count = auditresult.secret_detection_results.secrets_found.len();
        if secret_count > 0 {
            let secret_risk = (secret_count as f64 * 0.2).min(0.9);
            risk_factors.push(RiskFactor {
                name: "Exposed Secrets".to_string(),
                description: format!("{} hardcoded secrets found", secret_count),
                impact: 0.9,
                likelihood: 0.8,
                risk_contribution: secret_risk,
            });
            total_risk += secret_risk;
        }

        let overall_risk = match total_risk {
            r if r >= 0.8 => RiskLevel::Critical,
            r if r >= 0.6 => RiskLevel::High,
            r if r >= 0.4 => RiskLevel::Medium,
            r if r >= 0.2 => RiskLevel::Low,
            _ => RiskLevel::Minimal,
        };

        let mitigation_strategies = self.generate_mitigation_strategies(&risk_factors);

        Ok(RiskAssessment {
            overall_risk,
            risk_factors,
            risk_score: total_risk.min(1.0),
            recommendations: vec![
                "Implement regular security audits".to_string(),
                "Keep dependencies up to date".to_string(),
                "Use automated security scanning in CI/CD".to_string(),
                "Implement secure coding practices".to_string(),
                "Regular security training for developers".to_string(),
            ],
            mitigation_strategies,
        })
    }

    /// Generate mitigation strategies based on risk factors
    fn generate_mitigation_strategies(
        &self,
        risk_factors: &[RiskFactor],
    ) -> Vec<MitigationStrategy> {
        let mut strategies = Vec::new();

        for factor in risk_factors {
            match factor.name.as_str() {
                "Dependency Vulnerabilities" => {
                    strategies.push(MitigationStrategy {
                        name: "Automated Dependency Management".to_string(),
                        description: "Implement automated dependency scanning and updates"
                            .to_string(),
                        steps: vec![
                            "Set up dependabot or renovate for automated updates".to_string(),
                            "Implement dependency scanning in CI/CD pipeline".to_string(),
                            "Establish process for reviewing security advisories".to_string(),
                            "Create dependency approval process".to_string(),
                        ],
                        effort: EffortLevel::Medium,
                        risk_reduction: 0.7,
                    });
                }
                "Static Analysis Issues" => {
                    strategies.push(MitigationStrategy {
                        name: "Enhanced Static Analysis".to_string(),
                        description:
                            "Implement comprehensive static analysis in development workflow"
                                .to_string(),
                        steps: vec![
                            "Integrate static analysis tools in IDE".to_string(),
                            "Add pre-commit hooks for security checks".to_string(),
                            "Implement security linting in CI/CD".to_string(),
                            "Establish code review guidelines for security".to_string(),
                        ],
                        effort: EffortLevel::Low,
                        risk_reduction: 0.6,
                    });
                }
                "Exposed Secrets" => {
                    strategies.push(MitigationStrategy {
                        name: "Secret Management Implementation".to_string(),
                        description: "Implement proper secret management practices".to_string(),
                        steps: vec![
                            "Deploy secret management solution (HashiCorp Vault, etc.)".to_string(),
                            "Implement secret scanning in CI/CD".to_string(),
                            "Rotate all exposed secrets".to_string(),
                            "Train developers on secret management".to_string(),
                        ],
                        effort: EffortLevel::High,
                        risk_reduction: 0.9,
                    });
                }
                _ => {}
            }
        }

        strategies
    }

    /// Check if alerts should be generated based on audit results
    fn check_alerts(&self, auditresult: &SecurityAuditResult) -> Result<()> {
        let mut critical_issues = Vec::new();

        // Check for critical vulnerabilities
        for vuln_dep in &auditresult.dependency_results.vulnerable_dependencies {
            if vuln_dep.severity >= self.config.alert_threshold {
                critical_issues.push(format!(
                    "Critical vulnerability in {}: {}",
                    vuln_dep.name,
                    vuln_dep
                        .vulnerabilities
                        .first()
                        .map(|v| &v.title)
                        .unwrap_or(&"Unknown".to_string())
                ));
            }
        }

        // Check for critical static analysis issues
        for issue in &auditresult.static_analysis_results.security_issues {
            if issue.severity >= self.config.alert_threshold {
                critical_issues.push(format!("Critical security issue: {}", issue.description));
            }
        }

        // Check for exposed secrets
        if !auditresult
            .secret_detection_results
            .secrets_found
            .is_empty()
        {
            critical_issues.push("Hardcoded secrets detected in source code".to_string());
        }

        // Generate alerts if there are critical issues
        if !critical_issues.is_empty() {
            self.generate_security_alert(critical_issues)?;
        }

        Ok(())
    }

    /// Generate security alert
    fn generate_security_alert(&self, issues: Vec<String>) -> Result<()> {
        // In a real implementation, this would send alerts via:
        // - Email notifications
        // - Slack/Teams messages
        // - Security dashboard updates
        // - SIEM system integration

        eprintln!("🚨 SECURITY ALERT 🚨");
        eprintln!("Critical security issues detected:");
        for issue in issues {
            eprintln!("  • {}", issue);
        }
        eprintln!("Review the security audit report for details and remediation steps.");

        Ok(())
    }

    /// Get audit history
    pub fn get_audit_history(&self) -> &[SecurityAuditResult] {
        &self.audit_history
    }

    /// Generate security report
    pub fn generate_report(&self, auditresult: &SecurityAuditResult) -> Result<String> {
        self.report_generator
            .generate_report(auditresult, &self.config.report_format)
    }

    /// Run scheduled security audit
    pub fn run_scheduled_audit(
        &mut self,
        projectpath: &Path,
        schedule: AuditSchedule,
    ) -> Result<()> {
        match schedule {
            AuditSchedule::Daily => {
                // Run lightweight audit daily
                let mut config = self.config.clone();
                config.enable_supply_chain_analysis = false;
                config.max_audit_time = Duration::from_secs(5 * 60); // 5 minutes

                let temp_auditor = ComprehensiveSecurityAuditor::new(config);
                let _result = temp_auditor.audit_project_lightweight(projectpath)?;
            }
            AuditSchedule::Weekly => {
                // Run full audit weekly
                let _result = self.audit_project(projectpath)?;
            }
            AuditSchedule::Monthly => {
                // Run comprehensive audit with supply chain analysis
                let _result = self.audit_project(projectpath)?;
                self.generate_monthly_security_report()?;
            }
        }
        Ok(())
    }

    /// Lightweight audit for frequent scanning
    fn audit_project_lightweight(&self, projectpath: &Path) -> Result<SecurityAuditResult> {
        let start_time = std::time::Instant::now();

        let mut auditresult = SecurityAuditResult {
            timestamp: SystemTime::now(),
            duration: Duration::from_secs(0),
            security_score: 0.0,
            dependency_results: DependencyScanResult::default(),
            static_analysis_results: self.run_static_analysis(projectpath)?,
            license_compliance_results: LicenseComplianceResult::default(),
            supply_chain_results: SupplyChainAnalysisResult::default(),
            secret_detection_results: self.detect_secrets(projectpath)?,
            config_security_results: ConfigSecurityResult::default(),
            policy_compliance_results: PolicyComplianceResult::default(),
            remediation_suggestions: Vec::new(),
            risk_assessment: RiskAssessment::default(),
        };

        auditresult.security_score = self.calculate_security_score(&auditresult);
        auditresult.duration = start_time.elapsed();

        Ok(auditresult)
    }

    /// Generate monthly security report
    fn generate_monthly_security_report(&self) -> Result<()> {
        // Analyze trends from audit history
        let recent_audits: Vec<_> = self
            .audit_history
            .iter()
            .filter(|audit| {
                audit
                    .timestamp
                    .elapsed()
                    .map(|duration| duration < Duration::from_secs(30 * 24 * 60 * 60))
                    .unwrap_or(false)
            })
            .collect();

        if recent_audits.is_empty() {
            return Ok(());
        }

        // Calculate trend metrics
        let avg_security_score = recent_audits
            .iter()
            .map(|audit| audit.security_score)
            .sum::<f64>()
            / recent_audits.len() as f64;

        let vulnerability_trend = recent_audits
            .iter()
            .map(|audit| audit.dependency_results.vulnerable_dependencies.len())
            .collect::<Vec<_>>();

        // Generate trend report
        println!("📊 Monthly Security Report");
        println!("==========================");
        println!("Average Security Score: {:.2}", avg_security_score);
        println!("Vulnerability Trend: {:?}", vulnerability_trend);
        println!("Audits Performed: {}", recent_audits.len());

        Ok(())
    }

    // Placeholder implementations for missing methods
    fn check_license_compliance(&self, _projectpath: &Path) -> Result<LicenseComplianceResult> {
        Ok(LicenseComplianceResult::default())
    }

    fn analyze_supply_chain(&self, _projectpath: &Path) -> Result<SupplyChainAnalysisResult> {
        Ok(SupplyChainAnalysisResult::default())
    }

    fn detect_secrets(&self, _projectpath: &Path) -> Result<SecretDetectionResult> {
        Ok(SecretDetectionResult::default())
    }

    fn check_config_security(&self, _projectpath: &Path) -> Result<ConfigSecurityResult> {
        Ok(ConfigSecurityResult::default())
    }
}

/// Audit scheduling options
#[derive(Debug, Clone)]
pub enum AuditSchedule {
    Daily,
    Weekly,
    Monthly,
}

// Placeholder implementations and default constructors for all types
// (continuing with the same pattern as before...)

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct LicenseComplianceResult {
    pub violations: Vec<LicenseViolation>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LicenseViolation {
    pub package: String,
    pub license: String,
    pub reason: String,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct SupplyChainAnalysisResult {
    pub risks: Vec<SupplyChainRisk>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SupplyChainRisk {
    pub package: String,
    pub risk_type: String,
    pub severity: SecuritySeverity,
    pub description: String,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct SecretDetectionResult {
    pub secrets_found: Vec<DetectedSecret>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DetectedSecret {
    pub id: String,
    pub secret_type: String,
    pub file: PathBuf,
    pub line: usize,
    pub severity: SecuritySeverity,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct ConfigSecurityResult {
    pub issues: Vec<ConfigSecurityIssue>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConfigSecurityIssue {
    pub config_file: PathBuf,
    pub issue: String,
    pub severity: SecuritySeverity,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct PolicyComplianceResult {
    pub violations: Vec<PolicyViolation>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PolicyViolation {
    pub policy_id: String,
    pub rule_id: String,
    pub severity: SecuritySeverity,
    pub description: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RemediationSuggestion {
    pub id: String,
    pub title: String,
    pub description: String,
    pub priority: RemediationPriority,
    pub effort: EffortLevel,
    pub steps: Vec<String>,
    pub automated: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum RemediationPriority {
    Low,
    Medium,
    High,
    Critical,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct OutdatedDependency {
    pub name: String,
    pub current_version: String,
    pub latest_version: String,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct DependencyTree {
    pub root: String,
    pub dependencies: HashMap<String, Vec<String>>,
}

#[derive(Debug, Default, Clone, Serialize, Deserialize)]
pub struct QualityIssue {
    pub id: String,
    pub description: String,
    pub file: PathBuf,
    pub line: usize,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PolicyCondition {
    Always,
    Never,
    Custom(String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PolicyAction {
    Allow,
    Deny,
    Warn,
    Log,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PolicyScope {
    Global,
    Project,
    Directory(PathBuf),
}

// Supporting implementations
impl Default for SecurityAuditConfig {
    fn default() -> Self {
        Self {
            enable_dependency_scanning: true,
            enable_static_analysis: true,
            enable_license_compliance: true,
            enable_supply_chain_analysis: true,
            enable_secret_detection: true,
            enable_config_security: true,
            db_update_frequency: Duration::from_secs(24 * 60 * 60), // Daily
            max_audit_time: Duration::from_secs(30 * 60),           // 30 minutes
            alert_threshold: SecuritySeverity::High,
            report_format: ReportFormat::Json,
            enable_auto_remediation: true,
            trusted_sources: vec!["crates.io".to_string()],
            excluded_paths: vec![
                PathBuf::from("target"),
                PathBuf::from(".git"),
                PathBuf::from("node_modules"),
            ],
            custom_rules: Vec::new(),
        }
    }
}

impl Default for DependencyScanResult {
    fn default() -> Self {
        Self {
            total_dependencies: 0,
            vulnerable_dependencies: Vec::new(),
            outdated_dependencies: Vec::new(),
            license_violations: Vec::new(),
            supply_chain_risks: Vec::new(),
            dependency_tree: DependencyTree::default(),
            risk_score: 0.0,
        }
    }
}

impl Default for StaticAnalysisResult {
    fn default() -> Self {
        Self {
            security_issues: Vec::new(),
            quality_issues: Vec::new(),
            files_scanned: 0,
            lines_analyzed: 0,
            analysis_duration: Duration::from_secs(0),
        }
    }
}

impl Default for RiskAssessment {
    fn default() -> Self {
        Self {
            overall_risk: RiskLevel::Minimal,
            risk_factors: Vec::new(),
            risk_score: 0.0,
            recommendations: Vec::new(),
            mitigation_strategies: Vec::new(),
        }
    }
}

// Supporting struct implementations
impl DependencyScanner {
    fn new(config: DependencyScanConfig) -> Self {
        Self {
            config: DependencyScanConfig::default(),
            vuln_db_client: VulnerabilityDatabaseClient::new(),
            license_db: LicenseDatabase::new(),
            package_cache: HashMap::new(),
        }
    }

    fn scan_dependencies(&mut self, _projectpath: &Path) -> Result<DependencyScanResult> {
        Ok(DependencyScanResult::default())
    }
}

impl Default for DependencyScanConfig {
    fn default() -> Self {
        Self {
            scan_direct_deps: true,
            scan_transitive_deps: true,
            max_depth: 10,
            check_outdated: true,
            min_versions: HashMap::new(),
            blocked_dependencies: HashSet::new(),
            allowed_licenses: HashSet::new(),
            blocked_licenses: HashSet::new(),
        }
    }
}

#[derive(Debug)]
struct VulnerabilityDatabaseClient;

impl VulnerabilityDatabaseClient {
    fn new() -> Self {
        Self
    }
}

#[derive(Debug)]
struct LicenseDatabase;

impl LicenseDatabase {
    fn new() -> Self {
        Self
    }
}

#[derive(Debug)]
struct PackageMetadata;

impl VulnerabilityDatabase {
    fn new(config: VulnerabilityDatabaseConfig) -> Self {
        Self {
            config: VulnerabilityDatabaseConfig::default(),
            local_cache: HashMap::new(),
            last_update: SystemTime::now(),
            update_frequency: Duration::from_secs(24 * 60 * 60),
            external_sources: Vec::new(),
        }
    }

    fn needs_update(&self) -> bool {
        self.last_update.elapsed().unwrap_or(Duration::from_secs(0)) > self.update_frequency
    }

    fn update_from_sources(&mut self) -> Result<()> {
        self.last_update = SystemTime::now();
        Ok(())
    }
}

impl Default for VulnerabilityDatabaseConfig {
    fn default() -> Self {
        Self {
            auto_update: true,
            update_frequency: Duration::from_secs(24 * 60 * 60),
            cache_size_limit: 10000,
            cache_retention: Duration::from_secs(7 * 24 * 60 * 60), // 1 week
            external_sources: vec!["https://rustsec.org".to_string()],
            api_keys: HashMap::new(),
        }
    }
}

impl SecurityPolicyEnforcer {
    fn new() -> Self {
        Self {
            policies: Vec::new(),
            evaluator: PolicyEvaluator::new(),
            violations: Vec::new(),
        }
    }

    fn check_compliance(
        &mut self,
        _audit_result: &SecurityAuditResult,
    ) -> Result<PolicyComplianceResult> {
        Ok(PolicyComplianceResult::default())
    }
}

#[derive(Debug)]
struct PolicyEvaluator;

impl PolicyEvaluator {
    fn new() -> Self {
        Self
    }
}

#[derive(Debug)]
struct SecurityReportGenerator;

impl SecurityReportGenerator {
    fn new() -> Self {
        Self
    }

    fn generate_report(
        &self,
        auditresult: &SecurityAuditResult,
        format: &ReportFormat,
    ) -> Result<String> {
        match format {
            ReportFormat::Json => Ok(serde_json::to_string_pretty(auditresult)?),
            ReportFormat::Markdown => {
                let mut report = String::new();
                report.push_str("# Security Audit Report\n\n");
                report.push_str(&format!("**Audit Date:** {:?}\n", auditresult.timestamp));
                report.push_str(&format!(
                    "**Security Score:** {:.2}/1.0\n\n",
                    auditresult.security_score
                ));

                report.push_str("## Dependency Vulnerabilities\n");
                report.push_str(&format!(
                    "Found {} vulnerable dependencies\n\n",
                    auditresult.dependency_results.vulnerable_dependencies.len()
                ));

                report.push_str("## Static Analysis Issues\n");
                report.push_str(&format!(
                    "Found {} security issues\n\n",
                    auditresult.static_analysis_results.security_issues.len()
                ));

                report.push_str("## Risk Assessment\n");
                report.push_str(&format!(
                    "Overall Risk: {:?}\n",
                    auditresult.risk_assessment.overall_risk
                ));

                Ok(report)
            }
            _ => Ok("Report generation not yet implemented for this format".to_string()),
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_security_auditor_creation() {
        let config = SecurityAuditConfig::default();
        let auditor = ComprehensiveSecurityAuditor::new(config);
        assert!(auditor.config.enable_dependency_scanning);
        assert!(auditor.config.enable_static_analysis);
    }

    #[test]
    fn test_security_score_calculation() {
        let config = SecurityAuditConfig::default();
        let auditor = ComprehensiveSecurityAuditor::new(config);

        let auditresult = SecurityAuditResult {
            timestamp: SystemTime::now(),
            duration: Duration::from_secs(10),
            security_score: 0.0,
            dependency_results: DependencyScanResult::default(),
            static_analysis_results: StaticAnalysisResult::default(),
            license_compliance_results: LicenseComplianceResult::default(),
            supply_chain_results: SupplyChainAnalysisResult::default(),
            secret_detection_results: SecretDetectionResult::default(),
            config_security_results: ConfigSecurityResult::default(),
            policy_compliance_results: PolicyComplianceResult::default(),
            remediation_suggestions: Vec::new(),
            risk_assessment: RiskAssessment::default(),
        };

        let score = auditor.calculate_security_score(&auditresult);
        assert!((0.0..=1.0).contains(&score));
    }

    #[test]
    fn test_secret_detection() {
        let config = SecurityAuditConfig::default();
        let auditor = ComprehensiveSecurityAuditor::new(config);

        assert!(auditor.contains_potential_secret("password = \"secret123\""));
        assert!(auditor.contains_potential_secret("api_key = 'abc123def456'"));
        assert!(!auditor.contains_potential_secret("let x = 5;"));
    }

    #[test]
    fn test_weak_crypto_detection() {
        let config = SecurityAuditConfig::default();
        let auditor = ComprehensiveSecurityAuditor::new(config);

        assert!(auditor.uses_weak_crypto("use md5::Md5;"));
        assert!(auditor.uses_weak_crypto("let hash = sha1(data);"));
        assert!(!auditor.uses_weak_crypto("use sha256::Sha256;"));
    }

    #[test]
    fn test_cargo_dependency_parsing() {
        let config = SecurityAuditConfig::default();
        let auditor = ComprehensiveSecurityAuditor::new(config);

        let cargocontent = r#"
[dependencies]
serde = "1.0"
tokio = { version = "1.0", features = ["full"] }
log = "0.4"

[dev-dependencies]
test-dep = "0.1"
"#;

        let deps = auditor
            .parse_cargo_dependencies(cargocontent)
            .expect("unwrap failed");
        assert!(deps.len() >= 2);
        assert!(deps.iter().any(|(name, _)| name == "serde"));
        assert!(deps.iter().any(|(name, _)| name == "log"));
    }

    #[test]
    fn test_dependency_risk_calculation() {
        let config = SecurityAuditConfig::default();
        let auditor = ComprehensiveSecurityAuditor::new(config);

        let vulnerable_deps = vec![VulnerableDependency {
            name: "test-dep".to_string(),
            current_version: "1.0.0".to_string(),
            vulnerabilities: Vec::new(),
            affected_versions: "<= 1.0.0".to_string(),
            fixed_version: Some("1.0.1".to_string()),
            severity: SecuritySeverity::High,
            cve_ids: Vec::new(),
        }];

        let outdated_deps = vec![OutdatedDependency {
            name: "old-dep".to_string(),
            current_version: "0.1.0".to_string(),
            latest_version: "2.0.0".to_string(),
        }];

        let risk_score = auditor.calculate_dependency_risk_score(&vulnerable_deps, &outdated_deps);
        assert!(risk_score > 0.0 && risk_score <= 1.0);
    }
}