package hunting

import (
	"context"
	"crypto/sha256"
	"encoding/hex"
	"fmt"
	"sync"
	"time"

	"github.com/Anipaleja/nginx-defender/internal/types"
	"github.com/sirupsen/logrus"
)

// AdvancedThreatHunter - The most sophisticated threat hunting system
// Revolutionizes proactive threat detection with AI-powered hunting capabilities
type AdvancedThreatHunter struct {
	huntingEngine       *HuntingEngine
	indicatorEngine     *IndicatorEngine
	behaviorAnalyzer    *BehaviorAnalyzer
	anomalyDetector     *AnomalyDetector
	correlationEngine   *CorrelationEngine
	intelligenceEngine  *ThreatIntelligenceEngine
	hypothesisGenerator *types.HypothesisGenerator
	investigationEngine *InvestigationEngine
	huntingWorkflow     *HuntingWorkflow
	knowledgeBase       *ThreatKnowledgeBase
	collaborationEngine *CollaborationEngine
	automationEngine    *AutomationEngine
	visualizationEngine *VisualizationEngine
	reportingEngine     *ReportingEngine
	logger              *logrus.Logger
	mutex               sync.RWMutex

	// Active hunts and investigations
	activeHunts    map[string]*ThreatHunt
	investigations map[string]*ThreatInvestigation

	// Statistics and metrics
	stats *ThreatHuntingStats

	// Machine learning and AI
	mlEngine    *MLHuntingEngine
	aiAssistant *AIHuntingAssistant
}

// HuntingEngine orchestrates threat hunting activities
type HuntingEngine struct {
	huntStrategies    map[string]*HuntStrategy
	huntExecutor      *types.HuntExecutor
	evidenceCollector *types.EvidenceCollector
	chainAnalyzer     *types.AttackChainAnalyzer
	tacticsMapper     *types.MITRETacticsMapper
	techniqueDetector *types.TechniqueDetector
	campaignTracker   *types.CampaignTracker
	actorProfiler     *types.ThreatActorProfiler
}

// IndicatorEngine manages and analyzes threat indicators
type IndicatorEngine struct {
	iocManager       *types.IOCManager
	iocAnalyzer      *types.IOCAnalyzer
	iocEnrichment    *types.IOCEnrichment
	iocCorrelation   *types.IOCCorrelation
	iocScoring       *types.IOCScoring
	iocLifecycle     *types.IOCLifecycle
	customIndicators *types.CustomIndicatorEngine
	indicatorFusion  *types.IndicatorFusion
}

// BehaviorAnalyzer analyzes behavioral patterns for threats
type BehaviorAnalyzer struct {
	userBehavior          *types.UserBehaviorAnalyzer
	networkBehavior       *types.NetworkBehaviorAnalyzer
	systemBehavior        *types.SystemBehaviorAnalyzer
	applicationBehavior   *types.ApplicationBehaviorAnalyzer
	dataflowAnalyzer      *types.DataflowAnalyzer
	accessPatternAnalyzer *types.AccessPatternAnalyzer
	temporalAnalyzer      *types.TemporalAnalyzer
	geospatialAnalyzer    *types.GeospatialAnalyzer
}

// AnomalyDetector identifies anomalous activities
type AnomalyDetector struct {
	statisticalDetector  *types.StatisticalAnomalyDetector
	mlAnomalyDetector    *types.MLAnomalyDetector
	timeSeriesDetector   *types.TimeSeriesAnomalyDetector
	clusteringDetector   *types.ClusteringAnomalyDetector
	outlierDetector      *types.OutlierDetector
	changePointDetector  *types.ChangePointDetector
	seasonalityDetector  *types.SeasonalityDetector
	multiVariateDetector *types.MultivariateAnomalyDetector
}

// CorrelationEngine correlates events and indicators
type CorrelationEngine struct {
	eventCorrelator    *types.EventCorrelator
	temporalCorrelator *types.TemporalCorrelator
	spatialCorrelator  *types.SpatialCorrelator
	entityCorrelator   *types.EntityCorrelator
	patternCorrelator  *types.PatternCorrelator
	ruleEngine         *types.CorrelationRuleEngine
	graphAnalyzer      *types.GraphCorrelationAnalyzer
	chainReconstructor *types.AttackChainReconstructor
}

// ThreatIntelligenceEngine integrates threat intelligence
type ThreatIntelligenceEngine struct {
	feedManager        *types.ThreatFeedManager
	enrichmentEngine   *types.ThreatEnrichmentEngine
	contextualizer     *types.ThreatContextualizer
	attributionEngine  *types.AttributionEngine
	campaignAnalyzer   *types.CampaignAnalyzer
	tacticsAnalyzer    *types.TacticsAnalyzer
	ttpsMapper         *types.TTpsMapper
	intelligenceFusion *types.IntelligenceFusion
}

// HypothesisGenerator generates hunting hypotheses
type HypothesisGenerator struct {
	aiHypothesis      *types.AIHypothesisGenerator
	templateEngine    *types.HypothesisTemplateEngine
	scenarioGenerator *types.ScenarioGenerator
	riskAssessment    *types.HypothesisRiskAssessment
	prioritizer       *types.HypothesisPrioritizer
	validator         *types.HypothesisValidator
	refinementEngine  *types.HypothesisRefinementEngine
	creativityEngine  *types.CreativityEngine
}

// InvestigationEngine supports threat investigations
type InvestigationEngine struct {
	investigationManager *types.InvestigationManager
	evidenceAnalyzer     *types.EvidenceAnalyzer
	timelineBuilder      *types.TimelineBuilder
	forensicsEngine      *types.ForensicsEngine
	rootCauseAnalyzer    *types.RootCauseAnalyzer
	impactAssessment     *types.ImpactAssessment
	remediationPlanner   *types.RemediationPlanner
	caseworkEngine       *types.CaseworkEngine
}

// ThreatHunt represents an active threat hunt
type ThreatHunt struct {
	ID                 string                     `json:"id"`
	Name               string                     `json:"name"`
	Description        string                     `json:"description"`
	Hypothesis         *ThreatHypothesis          `json:"hypothesis"`
	Strategy           *HuntStrategy              `json:"strategy"`
	Status             string                     `json:"status"`
	Priority           string                     `json:"priority"`
	Hunters            []string                   `json:"hunters"`
	StartTime          time.Time                  `json:"start_time"`
	EndTime            *time.Time                 `json:"end_time,omitempty"`
	Duration           time.Duration              `json:"duration"`
	Progress           float64                    `json:"progress"`
	Findings           []*ThreatFinding           `json:"findings"`
	Evidence           []*types.Evidence          `json:"evidence"`
	IOCs               []*types.IOC               `json:"iocs"`
	Indicators         []*types.ThreatIndicator   `json:"indicators"`
	Techniques         []*types.MITRETechnique    `json:"techniques"`
	Tactics            []string                   `json:"tactics"`
	ActorProfile       *types.ThreatActorProfile  `json:"actor_profile,omitempty"`
	Campaign           *types.ThreatCampaign      `json:"campaign,omitempty"`
	Confidence         float64                    `json:"confidence"`
	RiskScore          float64                    `json:"risk_score"`
	Impact             *types.ThreatImpact        `json:"impact"`
	Recommendations    []*types.Recommendation    `json:"recommendations"`
	Artifacts          []*types.HuntArtifact      `json:"artifacts"`
	Timeline           *types.HuntTimeline        `json:"timeline"`
	Collaborators      []*types.Collaborator      `json:"collaborators"`
	AutomationLevel    string                     `json:"automation_level"`
	QualityScore       float64                    `json:"quality_score"`
	LessonsLearned     []string                   `json:"lessons_learned"`
	NextSteps          []string                   `json:"next_steps"`
	RelatedHunts       []string                   `json:"related_hunts"`
	ExternalReferences []*types.ExternalReference `json:"external_references"`
	Metadata           map[string]interface{}     `json:"metadata"`
}

// ThreatHypothesis represents a hunting hypothesis
type ThreatHypothesis struct {
	ID                 string                     `json:"id"`
	Statement          string                     `json:"statement"`
	Rationale          string                     `json:"rationale"`
	Assumptions        []string                   `json:"assumptions"`
	TestableQuestions  []string                   `json:"testable_questions"`
	DataRequirements   []*types.DataRequirement   `json:"data_requirements"`
	ExpectedIndicators []*types.ExpectedIndicator `json:"expected_indicators"`
	SuccessCriteria    []*types.SuccessCriterion  `json:"success_criteria"`
	RiskFactors        []*types.RiskFactor        `json:"risk_factors"`
	MITREMapping       *types.MITREMapping        `json:"mitre_mapping"`
	ThreatModeling     *types.ThreatModel         `json:"threat_modeling"`
	Confidence         float64                    `json:"confidence"`
	Probability        float64                    `json:"probability"`
	Severity           string                     `json:"severity"`
	Category           string                     `json:"category"`
	Tags               []string                   `json:"tags"`
	CreatedBy          string                     `json:"created_by"`
	CreatedAt          time.Time                  `json:"created_at"`
	UpdatedAt          time.Time                  `json:"updated_at"`
	ValidationStatus   string                     `json:"validation_status"`
	ValidationResults  []*types.ValidationResult  `json:"validation_results"`
}

// HuntStrategy defines hunting approach and methodology
type HuntStrategy struct {
	ID                 string                       `json:"id"`
	Name               string                       `json:"name"`
	Type               string                       `json:"type"`
	Methodology        string                       `json:"methodology"`
	Framework          string                       `json:"framework"`
	Phases             []*HuntPhase                 `json:"phases"`
	Techniques         []*HuntTechnique             `json:"techniques"`
	DataSources        []*types.DataSource          `json:"data_sources"`
	Tools              []*types.HuntTool            `json:"tools"`
	Queries            []*HuntQuery                 `json:"queries"`
	Analytics          []*HuntAnalytic              `json:"analytics"`
	Playbooks          []*types.HuntPlaybook        `json:"playbooks"`
	Automations        []*types.HuntAutomation      `json:"automations"`
	SuccessMetrics     []*types.SuccessMetric       `json:"success_metrics"`
	KillChainMapping   *types.KillChainMapping      `json:"kill_chain_mapping"`
	TacticsMapping     map[string][]string          `json:"tactics_mapping"`
	AdversaryEmulation *types.AdversaryEmulation    `json:"adversary_emulation"`
	RedTeamScenarios   []*types.RedTeamScenario     `json:"red_team_scenarios"`
	ThreatIntelligence *types.ThreatIntelligenceReq `json:"threat_intelligence"`
	CollaborationModel *types.CollaborationModel    `json:"collaboration_model"`
	QualityAssurance   *types.QualityAssurance      `json:"quality_assurance"`
}

// ThreatFinding represents a discovered threat
type ThreatFinding struct {
	ID                  string                     `json:"id"`
	Type                string                     `json:"type"`
	Category            string                     `json:"category"`
	Severity            string                     `json:"severity"`
	Confidence          float64                    `json:"confidence"`
	Title               string                     `json:"title"`
	Description         string                     `json:"description"`
	Summary             string                     `json:"summary"`
	ThreatActor         *types.ThreatActor         `json:"threat_actor,omitempty"`
	Campaign            *types.ThreatCampaign      `json:"campaign,omitempty"`
	Techniques          []*types.MITRETechnique    `json:"techniques"`
	Tactics             []string                   `json:"tactics"`
	IOCs                []*types.IOC               `json:"iocs"`
	Evidence            []*types.Evidence          `json:"evidence"`
	Timeline            *types.FindingTimeline     `json:"timeline"`
	AffectedAssets      []*types.AffectedAsset     `json:"affected_assets"`
	DataExfiltration    *types.DataExfiltration    `json:"data_exfiltration,omitempty"`
	LateralMovement     *types.LateralMovement     `json:"lateral_movement,omitempty"`
	Persistence         *types.Persistence         `json:"persistence,omitempty"`
	PrivilegeEscalation *types.PrivilegeEscalation `json:"privilege_escalation,omitempty"`
	DefenseEvasion      *types.DefenseEvasion      `json:"defense_evasion,omitempty"`
	CommandAndControl   *types.CommandAndControl   `json:"command_and_control,omitempty"`
	Impact              *types.ThreatImpact        `json:"impact"`
	RiskScore           float64                    `json:"risk_score"`
	BusinessImpact      *types.BusinessImpact      `json:"business_impact"`
	Recommendations     []*types.Recommendation    `json:"recommendations"`
	RemediationSteps    []*types.RemediationStep   `json:"remediation_steps"`
	ContainmentActions  []*types.ContainmentAction `json:"containment_actions"`
	EradicationActions  []*types.EradicationAction `json:"eradication_actions"`
	RecoveryActions     []*types.RecoveryAction    `json:"recovery_actions"`
	LessonsLearned      []string                   `json:"lessons_learned"`
	Attribution         *types.Attribution         `json:"attribution,omitempty"`
	GeographicContext   *types.GeographicContext   `json:"geographic_context,omitempty"`
	IndustryContext     *types.IndustryContext     `json:"industry_context,omitempty"`
	RegulatoryImpact    *types.RegulatoryImpact    `json:"regulatory_impact,omitempty"`
	ForensicArtifacts   []*types.ForensicArtifact  `json:"forensic_artifacts"`
	RelatedFindings     []string                   `json:"related_findings"`
	ExternalReferences  []*types.ExternalReference `json:"external_references"`
	DiscoveredBy        string                     `json:"discovered_by"`
	DiscoveredAt        time.Time                  `json:"discovered_at"`
	UpdatedAt           time.Time                  `json:"updated_at"`
	Status              string                     `json:"status"`
	AssignedTo          []string                   `json:"assigned_to"`
	Priority            string                     `json:"priority"`
	Tags                []string                   `json:"tags"`
	Metadata            map[string]interface{}     `json:"metadata"`
}

// ThreatInvestigation represents a threat investigation
type ThreatInvestigation struct {
	ID                    string                            `json:"id"`
	Title                 string                            `json:"title"`
	Description           string                            `json:"description"`
	Type                  string                            `json:"type"`
	Category              string                            `json:"category"`
	Status                string                            `json:"status"`
	Priority              string                            `json:"priority"`
	Severity              string                            `json:"severity"`
	Investigators         []*types.Investigator             `json:"investigators"`
	LeadInvestigator      string                            `json:"lead_investigator"`
	StartTime             time.Time                         `json:"start_time"`
	EndTime               *time.Time                        `json:"end_time,omitempty"`
	Duration              time.Duration                     `json:"duration"`
	TriggerEvent          *types.TriggerEvent               `json:"trigger_event"`
	InitialFindings       []*ThreatFinding                  `json:"initial_findings"`
	HypothesesTested      []*ThreatHypothesis               `json:"hypotheses_tested"`
	EvidenceCollected     []*types.Evidence                 `json:"evidence_collected"`
	InterviewsConducted   []*types.Interview                `json:"interviews_conducted"`
	ForensicAnalysis      []*types.ForensicAnalysis         `json:"forensic_analysis"`
	Timeline              *types.InvestigationTimeline      `json:"timeline"`
	RootCause             *types.RootCause                  `json:"root_cause,omitempty"`
	AttackChain           *types.AttackChain                `json:"attack_chain,omitempty"`
	ThreatActor           *types.ThreatActor                `json:"threat_actor,omitempty"`
	Campaign              *types.ThreatCampaign             `json:"campaign,omitempty"`
	ImpactAssessment      *types.ImpactAssessment           `json:"impact_assessment"`
	BusinessImpact        *types.BusinessImpact             `json:"business_impact"`
	DataBreach            *types.DataBreach                 `json:"data_breach,omitempty"`
	RegulatoryObligations []*types.RegulatoryObligation     `json:"regulatory_obligations"`
	LegalImplications     *types.LegalImplications          `json:"legal_implications,omitempty"`
	ContainmentActions    []*types.ContainmentAction        `json:"containment_actions"`
	EradicationActions    []*types.EradicationAction        `json:"eradication_actions"`
	RecoveryActions       []*types.RecoveryAction           `json:"recovery_actions"`
	LessonsLearned        []*types.LessonLearned            `json:"lessons_learned"`
	Recommendations       []*types.Recommendation           `json:"recommendations"`
	Reports               []*types.InvestigationReport      `json:"reports"`
	QualityAssurance      *types.QualityAssurance           `json:"quality_assurance"`
	PeerReview            *types.PeerReview                 `json:"peer_review,omitempty"`
	ExternalConsultation  *types.ExternalConsultation       `json:"external_consultation,omitempty"`
	Collaboration         *types.InvestigationCollaboration `json:"collaboration"`
	CommunicationPlan     *types.CommunicationPlan          `json:"communication_plan"`
	Documentation         *types.InvestigationDocumentation `json:"documentation"`
	Archives              []*types.InvestigationArchive     `json:"archives"`
	CreatedBy             string                            `json:"created_by"`
	CreatedAt             time.Time                         `json:"created_at"`
	UpdatedAt             time.Time                         `json:"updated_at"`
	Tags                  []string                          `json:"tags"`
	Metadata              map[string]interface{}            `json:"metadata"`
}

// NewAdvancedThreatHunter creates a new advanced threat hunting system
func NewAdvancedThreatHunter(config *ThreatHuntingConfig, logger *logrus.Logger) (*AdvancedThreatHunter, error) {
	hunter := &AdvancedThreatHunter{
		logger:         logger,
		activeHunts:    make(map[string]*ThreatHunt),
		investigations: make(map[string]*ThreatInvestigation),
		stats:          &ThreatHuntingStats{},
	}

	// Initialize hunting engine
	huntingEngine, err := NewHuntingEngine(config.HuntingEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize hunting engine: %w", err)
	}
	hunter.huntingEngine = huntingEngine

	// Initialize indicator engine
	indicatorEngine, err := NewIndicatorEngine(config.IndicatorEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize indicator engine: %w", err)
	}
	hunter.indicatorEngine = indicatorEngine

	// Initialize behavior analyzer
	behaviorAnalyzer, err := NewBehaviorAnalyzer(config.BehaviorAnalyzer, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize behavior analyzer: %w", err)
	}
	hunter.behaviorAnalyzer = behaviorAnalyzer

	// Initialize anomaly detector
	anomalyDetector, err := NewAnomalyDetector(config.AnomalyDetector, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize anomaly detector: %w", err)
	}
	hunter.anomalyDetector = anomalyDetector

	// Initialize correlation engine
	correlationEngine, err := NewCorrelationEngine(config.CorrelationEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize correlation engine: %w", err)
	}
	hunter.correlationEngine = correlationEngine

	// Initialize threat intelligence engine
	intelligenceEngine, err := NewThreatIntelligenceEngine(config.IntelligenceEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize intelligence engine: %w", err)
	}
	hunter.intelligenceEngine = intelligenceEngine

	// Initialize hypothesis generator
	hypothesisGenerator, err := NewHypothesisGenerator(config.HypothesisGenerator, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize hypothesis generator: %w", err)
	}
	hunter.hypothesisGenerator = hypothesisGenerator

	// Initialize investigation engine
	investigationEngine, err := NewInvestigationEngine(config.InvestigationEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize investigation engine: %w", err)
	}
	hunter.investigationEngine = investigationEngine

	// Initialize hunting workflow
	huntingWorkflow, err := NewHuntingWorkflow(config.HuntingWorkflow, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize hunting workflow: %w", err)
	}
	hunter.huntingWorkflow = huntingWorkflow

	// Initialize knowledge base
	knowledgeBase, err := NewThreatKnowledgeBase(config.KnowledgeBase, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize knowledge base: %w", err)
	}
	hunter.knowledgeBase = knowledgeBase

	// Initialize collaboration engine
	collaborationEngine, err := NewCollaborationEngine(config.CollaborationEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize collaboration engine: %w", err)
	}
	hunter.collaborationEngine = collaborationEngine

	// Initialize automation engine
	automationEngine, err := NewAutomationEngine(config.AutomationEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize automation engine: %w", err)
	}
	hunter.automationEngine = automationEngine

	// Initialize visualization engine
	visualizationEngine, err := NewVisualizationEngine(config.VisualizationEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize visualization engine: %w", err)
	}
	hunter.visualizationEngine = visualizationEngine

	// Initialize reporting engine
	reportingEngine, err := NewReportingEngine(config.ReportingEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize reporting engine: %w", err)
	}
	hunter.reportingEngine = reportingEngine

	// Initialize ML engine
	mlEngine, err := NewMLHuntingEngine(config.MLEngine, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize ML engine: %w", err)
	}
	hunter.mlEngine = mlEngine

	// Initialize AI assistant
	aiAssistant, err := NewAIHuntingAssistant(config.AIAssistant, logger)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize AI assistant: %w", err)
	}
	hunter.aiAssistant = aiAssistant

	logger.Info("Advanced threat hunting system initialized successfully")
	return hunter, nil
}

// StartThreatHunt initiates a new threat hunt
func (th *AdvancedThreatHunter) StartThreatHunt(ctx context.Context, request *ThreatHuntRequest) (*ThreatHunt, error) {
	th.mutex.Lock()
	defer th.mutex.Unlock()

	// Generate hunt ID
	huntID := th.generateHuntID(request)

	// Create new threat hunt
	hunt := &ThreatHunt{
		ID:          huntID,
		Name:        request.Name,
		Description: request.Description,
		Status:      "initiated",
		Priority:    request.Priority,
		Hunters:     request.Hunters,
		StartTime:   time.Now(),
		Progress:    0.0,
		Findings:    []*ThreatFinding{},
		Evidence:    []*types.Evidence{},
		IOCs:        []*types.IOC{},
		Indicators:  []*types.ThreatIndicator{},
		Techniques:  []*types.MITRETechnique{},
		Tactics:     []string{},
		Confidence:  0.0,
		RiskScore:   0.0,
		Metadata:    make(map[string]interface{}),
	}

	// Generate or use provided hypothesis
	if request.Hypothesis != nil {
		hunt.Hypothesis = request.Hypothesis
	} else {
		hypothesis, err := th.hypothesisGenerator.GenerateHypothesis(ctx, request)
		if err != nil {
			return nil, fmt.Errorf("failed to generate hypothesis: %w", err)
		}
		hunt.Hypothesis = convertTypesHypothesis(hypothesis)
	}

	// Determine hunting strategy
	strategy, err := th.huntingEngine.DetermineStrategy(ctx, hunt.Hypothesis, request)
	if err != nil {
		return nil, fmt.Errorf("failed to determine strategy: %w", err)
	}
	hunt.Strategy = strategy

	// Initialize hunting workflow (for later use)
	_, err = th.huntingWorkflow.InitializeWorkflow(ctx, hunt)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize workflow: %w", err)
	}

	// Start automated hunting processes
	if request.AutomationLevel != "manual" {
		err = th.automationEngine.StartAutomatedHunt(ctx, hunt)
		if err != nil {
			th.logger.WithError(err).Warn("Failed to start automated hunt")
		}
	}

	// Add to active hunts
	th.activeHunts[huntID] = hunt

	// Update statistics
	th.stats.TotalHunts++
	th.stats.ActiveHunts++

	// Create initial timeline entry
	hunt.Timeline = &types.HuntTimeline{
		Events: []*types.TimelineEvent{
			{
				Timestamp:   time.Now(),
				Type:        "hunt_started",
				Description: "Threat hunt initiated",
				Context: map[string]interface{}{
					"actor":      request.InitiatedBy,
					"hypothesis": hunt.Hypothesis.Statement,
					"strategy":   hunt.Strategy.Name,
				},
			},
		},
	}

	// Notify collaboration engine
	err = th.collaborationEngine.NotifyHuntStarted(ctx, hunt)
	if err != nil {
		th.logger.WithError(err).Warn("Failed to notify hunt start")
	}

	th.logger.WithFields(logrus.Fields{
		"hunt_id":    huntID,
		"hunt_name":  hunt.Name,
		"hypothesis": hunt.Hypothesis.Statement,
		"hunters":    hunt.Hunters,
	}).Info("Threat hunt started")

	return hunt, nil
}

// ExecuteHunt executes the threat hunting process
func (th *AdvancedThreatHunter) ExecuteHunt(ctx context.Context, huntID string) (*ThreatHuntResults, error) {
	th.mutex.RLock()
	hunt, exists := th.activeHunts[huntID]
	th.mutex.RUnlock()

	if !exists {
		return nil, fmt.Errorf("hunt %s not found", huntID)
	}

	// Update hunt status
	hunt.Status = "executing"
	hunt.Progress = 0.1

	results := &ThreatHuntResults{
		HuntID:     huntID,
		StartTime:  time.Now(),
		Findings:   []*ThreatFinding{},
		Evidence:   []*types.Evidence{},
		IOCs:       []*types.IOC{},
		Techniques: []*types.MITRETechnique{},
	}

	// Execute hunting phases
	for i, phase := range hunt.Strategy.Phases {
		th.logger.WithFields(logrus.Fields{
			"hunt_id": huntID,
			"phase":   phase.Name,
		}).Info("Executing hunt phase")

		phaseResults, err := th.executeHuntPhase(ctx, hunt, phase)
		if err != nil {
			th.logger.WithError(err).Error("Hunt phase execution failed")
			continue
		}

		// Merge phase results
		results.Findings = append(results.Findings, phaseResults.Findings...)
		results.Evidence = append(results.Evidence, phaseResults.Evidence...)
		results.IOCs = append(results.IOCs, phaseResults.IOCs...)
		results.Techniques = append(results.Techniques, phaseResults.Techniques...)

		// Update progress
		hunt.Progress = float64(i+1) / float64(len(hunt.Strategy.Phases))

		// Check for early termination conditions
		if th.shouldTerminateHunt(hunt, phaseResults) {
			th.logger.WithField("hunt_id", huntID).Info("Early hunt termination triggered")
			break
		}
	}

	// Perform correlation analysis
	correlationResults, err := th.correlationEngine.CorrelateFindings(ctx, results.Findings)
	if err != nil {
		th.logger.WithError(err).Error("Correlation analysis failed")
	} else {
		results.CorrelationResults = correlationResults
	}

	// Enrich with threat intelligence
	intelligenceResults, err := th.intelligenceEngine.EnrichFindings(ctx, results.Findings)
	if err != nil {
		th.logger.WithError(err).Error("Threat intelligence enrichment failed")
	} else {
		results.IntelligenceResults = intelligenceResults
	}

	// Perform ML analysis
	mlResults, err := th.mlEngine.AnalyzeHuntResults(ctx, results)
	if err != nil {
		th.logger.WithError(err).Error("ML analysis failed")
	} else {
		results.MLResults = mlResults
	}

	// Generate AI insights
	aiInsights, err := th.aiAssistant.GenerateInsights(ctx, hunt, results)
	if err != nil {
		th.logger.WithError(err).Error("AI insights generation failed")
	} else {
		results.AIInsights = aiInsights
	}

	// Calculate final scores and confidence
	hunt.Confidence = th.calculateHuntConfidence(results)
	hunt.RiskScore = th.calculateHuntRiskScore(results)

	// Update hunt with results
	hunt.Findings = results.Findings
	hunt.Evidence = results.Evidence
	hunt.IOCs = results.IOCs
	hunt.Techniques = results.Techniques
	hunt.Status = "completed"
	hunt.Progress = 1.0
	endTime := time.Now()
	hunt.EndTime = &endTime
	hunt.Duration = endTime.Sub(hunt.StartTime)

	// Generate recommendations
	recommendations, err := th.generateRecommendations(ctx, hunt, results)
	if err != nil {
		th.logger.WithError(err).Error("Recommendation generation failed")
	} else {
		hunt.Recommendations = recommendations
	}

	// Update statistics
	th.stats.CompletedHunts++
	th.stats.ActiveHunts--
	th.stats.TotalFindings += uint64(len(results.Findings))
	th.stats.AverageHuntDuration = th.calculateAverageHuntDuration()

	// Store in knowledge base
	err = th.knowledgeBase.StoreHuntResults(ctx, hunt, results)
	if err != nil {
		th.logger.WithError(err).Error("Failed to store hunt results in knowledge base")
	}

	// Generate hunt report
	report, err := th.reportingEngine.GenerateHuntReport(ctx, hunt, results)
	if err != nil {
		th.logger.WithError(err).Error("Hunt report generation failed")
	} else {
		results.Report = report
	}

	// Notify stakeholders
	err = th.collaborationEngine.NotifyHuntCompleted(ctx, hunt, results)
	if err != nil {
		th.logger.WithError(err).Warn("Failed to notify hunt completion")
	}

	results.EndTime = time.Now()
	results.Duration = results.EndTime.Sub(results.StartTime)

	th.logger.WithFields(logrus.Fields{
		"hunt_id":    huntID,
		"duration":   results.Duration,
		"findings":   len(results.Findings),
		"confidence": hunt.Confidence,
		"risk_score": hunt.RiskScore,
	}).Info("Threat hunt completed")

	return results, nil
}

// executeHuntPhase executes a specific hunting phase
func (th *AdvancedThreatHunter) executeHuntPhase(ctx context.Context, hunt *ThreatHunt, phase *HuntPhase) (*HuntPhaseResults, error) {
	results := &HuntPhaseResults{
		PhaseID:    phase.ID,
		PhaseName:  phase.Name,
		StartTime:  time.Now(),
		Findings:   []*ThreatFinding{},
		Evidence:   []*types.Evidence{},
		IOCs:       []*types.IOC{},
		Techniques: []*types.MITRETechnique{},
	}

	// Execute phase techniques
	for _, technique := range phase.Techniques {
		techniqueResults, err := th.executeTechnique(ctx, hunt, technique)
		if err != nil {
			th.logger.WithError(err).WithField("technique", technique.Name).Error("Technique execution failed")
			continue
		}

		// Merge technique results
		results.Findings = append(results.Findings, techniqueResults.Findings...)
		results.Evidence = append(results.Evidence, techniqueResults.Evidence...)
		results.IOCs = append(results.IOCs, techniqueResults.IOCs...)
		results.Techniques = append(results.Techniques, techniqueResults.Techniques...)
	}

	// Execute phase queries
	for _, query := range phase.Queries {
		queryResults, err := th.executeQuery(ctx, hunt, query)
		if err != nil {
			th.logger.WithError(err).WithField("query", query.Name).Error("Query execution failed")
			continue
		}

		// Process query results
		findings := th.processQueryResults(queryResults, query)
		results.Findings = append(results.Findings, findings...)
	}

	// Execute phase analytics
	for _, analytic := range phase.Analytics {
		analyticResults, err := th.executeAnalytic(ctx, hunt, analytic)
		if err != nil {
			th.logger.WithError(err).WithField("analytic", analytic.Name).Error("Analytic execution failed")
			continue
		}

		// Process analytic results
		findings := th.processAnalyticResults(analyticResults, analytic)
		results.Findings = append(results.Findings, findings...)
	}

	results.EndTime = time.Now()
	results.Duration = results.EndTime.Sub(results.StartTime)
	results.Success = len(results.Findings) > 0 || len(results.Evidence) > 0

	return results, nil
}

// GenerateHypothesis generates a threat hunting hypothesis
func (th *AdvancedThreatHunter) GenerateHypothesis(ctx context.Context, request *HypothesisRequest) (*ThreatHypothesis, error) {
	typesHypothesis, err := th.hypothesisGenerator.GenerateHypothesis(ctx, request)
	if err != nil {
		return nil, err
	}
	return convertTypesHypothesis(typesHypothesis), nil
}

// StartInvestigation initiates a threat investigation
func (th *AdvancedThreatHunter) StartInvestigation(ctx context.Context, request *InvestigationRequest) (*ThreatInvestigation, error) {
	th.mutex.Lock()
	defer th.mutex.Unlock()

	// Generate investigation ID
	investigationID := th.generateInvestigationID(request)

	// Create new investigation
	investigation := &ThreatInvestigation{
		ID:               investigationID,
		Title:            request.Title,
		Description:      request.Description,
		Type:             request.Type,
		Category:         request.Category,
		Status:           "initiated",
		Priority:         request.Priority,
		Severity:         request.Severity,
		Investigators:    request.Investigators,
		LeadInvestigator: request.LeadInvestigator,
		StartTime:        time.Now(),
		TriggerEvent:     request.TriggerEvent,
		InitialFindings:  request.InitialFindings,
		CreatedBy:        request.InitiatedBy,
		CreatedAt:        time.Now(),
		Tags:             request.Tags,
		Metadata:         make(map[string]interface{}),
	}

	// Initialize investigation workflow
	err := th.investigationEngine.InitializeInvestigation(ctx, investigation)
	if err != nil {
		return nil, fmt.Errorf("failed to initialize investigation: %w", err)
	}

	// Add to active investigations
	th.investigations[investigationID] = investigation

	// Update statistics
	th.stats.TotalInvestigations++
	th.stats.ActiveInvestigations++

	th.logger.WithFields(logrus.Fields{
		"investigation_id": investigationID,
		"title":            investigation.Title,
		"type":             investigation.Type,
		"priority":         investigation.Priority,
		"investigators":    investigation.Investigators,
	}).Info("Threat investigation started")

	return investigation, nil
}

// GetActiveHunts returns all active threat hunts
func (th *AdvancedThreatHunter) GetActiveHunts() []*ThreatHunt {
	th.mutex.RLock()
	defer th.mutex.RUnlock()

	hunts := make([]*ThreatHunt, 0, len(th.activeHunts))
	for _, hunt := range th.activeHunts {
		hunts = append(hunts, hunt)
	}

	return hunts
}

// GetActiveInvestigations returns all active investigations
func (th *AdvancedThreatHunter) GetActiveInvestigations() []*ThreatInvestigation {
	th.mutex.RLock()
	defer th.mutex.RUnlock()

	investigations := make([]*ThreatInvestigation, 0, len(th.investigations))
	for _, investigation := range th.investigations {
		investigations = append(investigations, investigation)
	}

	return investigations
}

// GetHuntingStats returns threat hunting statistics
func (th *AdvancedThreatHunter) GetHuntingStats() *ThreatHuntingStats {
	th.mutex.RLock()
	defer th.mutex.RUnlock()

	// Create a copy to avoid race conditions
	stats := *th.stats
	return &stats
}

// Helper functions

func (th *AdvancedThreatHunter) generateHuntID(request *ThreatHuntRequest) string {
	data := fmt.Sprintf("%s:%s:%d", request.Name, request.InitiatedBy, time.Now().UnixNano())
	hash := sha256.Sum256([]byte(data))
	return fmt.Sprintf("hunt_%s", hex.EncodeToString(hash[:8]))
}

func (th *AdvancedThreatHunter) generateInvestigationID(request *InvestigationRequest) string {
	data := fmt.Sprintf("%s:%s:%d", request.Title, request.InitiatedBy, time.Now().UnixNano())
	hash := sha256.Sum256([]byte(data))
	return fmt.Sprintf("inv_%s", hex.EncodeToString(hash[:8]))
}

func (th *AdvancedThreatHunter) shouldTerminateHunt(hunt *ThreatHunt, phaseResults *HuntPhaseResults) bool {
	// Check for critical findings that require immediate action
	for _, finding := range phaseResults.Findings {
		if finding.Severity == "critical" && finding.Confidence > 0.9 {
			return true
		}
	}

	// Check if hypothesis is sufficiently validated
	if hunt.Confidence > 0.95 {
		return true
	}

	return false
}

func (th *AdvancedThreatHunter) calculateHuntConfidence(results *ThreatHuntResults) float64 {
	if len(results.Findings) == 0 {
		return 0.0
	}

	var totalConfidence float64
	for _, finding := range results.Findings {
		totalConfidence += finding.Confidence
	}

	return totalConfidence / float64(len(results.Findings))
}

func (th *AdvancedThreatHunter) calculateHuntRiskScore(results *ThreatHuntResults) float64 {
	if len(results.Findings) == 0 {
		return 0.0
	}

	var maxRisk float64
	for _, finding := range results.Findings {
		if finding.RiskScore > maxRisk {
			maxRisk = finding.RiskScore
		}
	}

	return maxRisk
}

func (th *AdvancedThreatHunter) calculateAverageHuntDuration() time.Duration {
	// Implementation would calculate average from completed hunts
	return time.Hour * 2 // Placeholder
}

// Data structures and types

type ThreatHuntingStats struct {
	TotalHunts                   uint64        `json:"total_hunts"`
	ActiveHunts                  uint64        `json:"active_hunts"`
	CompletedHunts               uint64        `json:"completed_hunts"`
	SuccessfulHunts              uint64        `json:"successful_hunts"`
	TotalFindings                uint64        `json:"total_findings"`
	CriticalFindings             uint64        `json:"critical_findings"`
	TotalInvestigations          uint64        `json:"total_investigations"`
	ActiveInvestigations         uint64        `json:"active_investigations"`
	CompletedInvestigations      uint64        `json:"completed_investigations"`
	AverageHuntDuration          time.Duration `json:"average_hunt_duration"`
	AverageInvestigationDuration time.Duration `json:"average_investigation_duration"`
	ThreatActorsIdentified       uint64        `json:"threat_actors_identified"`
	CampaignsDiscovered          uint64        `json:"campaigns_discovered"`
	IOCsGenerated                uint64        `json:"iocs_generated"`
	HypothesesGenerated          uint64        `json:"hypotheses_generated"`
	HypothesesValidated          uint64        `json:"hypotheses_validated"`
	AutomationRate               float64       `json:"automation_rate"`
	AccuracyRate                 float64       `json:"accuracy_rate"`
	FalsePositiveRate            float64       `json:"false_positive_rate"`
	TimeToDetection              time.Duration `json:"time_to_detection"`
	TimeToContainment            time.Duration `json:"time_to_containment"`
	LastHuntStarted              time.Time     `json:"last_hunt_started"`
	LastInvestigationStarted     time.Time     `json:"last_investigation_started"`
}

type ThreatHuntRequest struct {
	Name            string                 `json:"name"`
	Description     string                 `json:"description"`
	Priority        string                 `json:"priority"`
	Hunters         []string               `json:"hunters"`
	Hypothesis      *ThreatHypothesis      `json:"hypothesis,omitempty"`
	Strategy        *HuntStrategy          `json:"strategy,omitempty"`
	DataSources     []*types.DataSource    `json:"data_sources"`
	TimeRange       *types.TimeRange       `json:"time_range"`
	Scope           *types.HuntScope       `json:"scope"`
	AutomationLevel string                 `json:"automation_level"`
	InitiatedBy     string                 `json:"initiated_by"`
	Tags            []string               `json:"tags"`
	Metadata        map[string]interface{} `json:"metadata"`
}

type ThreatHuntResults struct {
	HuntID              string                  `json:"hunt_id"`
	StartTime           time.Time               `json:"start_time"`
	EndTime             time.Time               `json:"end_time"`
	Duration            time.Duration           `json:"duration"`
	Findings            []*ThreatFinding        `json:"findings"`
	Evidence            []*types.Evidence       `json:"evidence"`
	IOCs                []*types.IOC            `json:"iocs"`
	Techniques          []*types.MITRETechnique `json:"techniques"`
	CorrelationResults  *CorrelationResults     `json:"correlation_results,omitempty"`
	IntelligenceResults *IntelligenceResults    `json:"intelligence_results,omitempty"`
	MLResults           *MLResults              `json:"ml_results,omitempty"`
	AIInsights          *AIInsights             `json:"ai_insights,omitempty"`
	Report              *HuntReport             `json:"report,omitempty"`
	Success             bool                    `json:"success"`
	QualityScore        float64                 `json:"quality_score"`
}

type HypothesisRequest struct {
	ThreatType   string              `json:"threat_type"`
	ThreatActors []string            `json:"threat_actors"`
	Techniques   []string            `json:"techniques"`
	Tactics      []string            `json:"tactics"`
	DataSources  []*types.DataSource `json:"data_sources"`
	Environment  *types.Environment  `json:"environment"`
	Context      string              `json:"context"`
	Priority     string              `json:"priority"`
	RequestedBy  string              `json:"requested_by"`
	Tags         []string            `json:"tags"`
}

type InvestigationRequest struct {
	Title            string                    `json:"title"`
	Description      string                    `json:"description"`
	Type             string                    `json:"type"`
	Category         string                    `json:"category"`
	Priority         string                    `json:"priority"`
	Severity         string                    `json:"severity"`
	Investigators    []*types.Investigator     `json:"investigators"`
	LeadInvestigator string                    `json:"lead_investigator"`
	TriggerEvent     *types.TriggerEvent       `json:"trigger_event"`
	InitialFindings  []*ThreatFinding          `json:"initial_findings"`
	Scope            *types.InvestigationScope `json:"scope"`
	Timeline         *types.TimeRange          `json:"timeline"`
	InitiatedBy      string                    `json:"initiated_by"`
	Tags             []string                  `json:"tags"`
	Metadata         map[string]interface{}    `json:"metadata"`
}

// Additional configuration structures
type ThreatHuntingConfig struct {
	HuntingEngine       *HuntingEngineConfig             `yaml:"hunting_engine"`
	IndicatorEngine     *IndicatorEngineConfig           `yaml:"indicator_engine"`
	BehaviorAnalyzer    *BehaviorAnalyzerConfig          `yaml:"behavior_analyzer"`
	AnomalyDetector     *AnomalyDetectorConfig           `yaml:"anomaly_detector"`
	CorrelationEngine   *CorrelationEngineConfig         `yaml:"correlation_engine"`
	IntelligenceEngine  *IntelligenceEngineConfig        `yaml:"intelligence_engine"`
	HypothesisGenerator *types.HypothesisGeneratorConfig `yaml:"hypothesis_generator"`
	InvestigationEngine *InvestigationEngineConfig       `yaml:"investigation_engine"`
	HuntingWorkflow     *HuntingWorkflowConfig           `yaml:"hunting_workflow"`
	KnowledgeBase       *KnowledgeBaseConfig             `yaml:"knowledge_base"`
	CollaborationEngine *CollaborationEngineConfig       `yaml:"collaboration_engine"`
	AutomationEngine    *AutomationEngineConfig          `yaml:"automation_engine"`
	VisualizationEngine *VisualizationEngineConfig       `yaml:"visualization_engine"`
	ReportingEngine     *ReportingEngineConfig           `yaml:"reporting_engine"`
	MLEngine            *MLEngineConfig                  `yaml:"ml_engine"`
	AIAssistant         *AIAssistantConfig               `yaml:"ai_assistant"`
}

// Placeholder configurations - these would be fully implemented
type HuntingEngineConfig struct {
	Enabled            bool    `yaml:"enabled"`
	StrategiesPath     string  `yaml:"strategies_path"`
	PlaybooksPath      string  `yaml:"playbooks_path"`
	AutoExecute        bool    `yaml:"auto_execute"`
	ParallelExecution  bool    `yaml:"parallel_execution"`
	MaxConcurrentHunts int     `yaml:"max_concurrent_hunts"`
	DefaultTimeout     string  `yaml:"default_timeout"`
	QualityThreshold   float64 `yaml:"quality_threshold"`
}

type IndicatorEngineConfig struct {
	Enabled        bool     `yaml:"enabled"`
	IOCFeeds       []string `yaml:"ioc_feeds"`
	CustomIOCs     bool     `yaml:"custom_iocs"`
	IOCExpiration  string   `yaml:"ioc_expiration"`
	IOCScoring     bool     `yaml:"ioc_scoring"`
	IOCEnrichment  bool     `yaml:"ioc_enrichment"`
	IOCCorrelation bool     `yaml:"ioc_correlation"`
}

// Additional stub functions for component initialization
// These would be fully implemented in a real system

func NewHuntingEngine(config *HuntingEngineConfig, logger *logrus.Logger) (*HuntingEngine, error) {
	return &HuntingEngine{}, nil
}

func NewIndicatorEngine(config *IndicatorEngineConfig, logger *logrus.Logger) (*IndicatorEngine, error) {
	return &IndicatorEngine{}, nil
}

func NewBehaviorAnalyzer(config *BehaviorAnalyzerConfig, logger *logrus.Logger) (*BehaviorAnalyzer, error) {
	return &BehaviorAnalyzer{}, nil
}

func NewAnomalyDetector(config *AnomalyDetectorConfig, logger *logrus.Logger) (*AnomalyDetector, error) {
	return &AnomalyDetector{}, nil
}

func NewCorrelationEngine(config *CorrelationEngineConfig, logger *logrus.Logger) (*CorrelationEngine, error) {
	return &CorrelationEngine{}, nil
}

func NewThreatIntelligenceEngine(config *IntelligenceEngineConfig, logger *logrus.Logger) (*ThreatIntelligenceEngine, error) {
	return &ThreatIntelligenceEngine{}, nil
}

func NewHypothesisGenerator(config *types.HypothesisGeneratorConfig, logger *logrus.Logger) (*types.HypothesisGenerator, error) {
	return &types.HypothesisGenerator{
		ID:         "hypothesis_gen_" + time.Now().Format("20060102150405"),
		Templates:  []string{},
		Models:     []*types.HuntingModel{},
		Strategies: []*types.HuntStrategy{},
		Config:     map[string]interface{}{},
	}, nil
}

func NewInvestigationEngine(config *InvestigationEngineConfig, logger *logrus.Logger) (*InvestigationEngine, error) {
	return &InvestigationEngine{}, nil
}

func NewHuntingWorkflow(config *HuntingWorkflowConfig, logger *logrus.Logger) (*HuntingWorkflow, error) {
	return &HuntingWorkflow{}, nil
}

func NewThreatKnowledgeBase(config *KnowledgeBaseConfig, logger *logrus.Logger) (*ThreatKnowledgeBase, error) {
	return &ThreatKnowledgeBase{}, nil
}

func NewCollaborationEngine(config *CollaborationEngineConfig, logger *logrus.Logger) (*CollaborationEngine, error) {
	return &CollaborationEngine{}, nil
}

func NewAutomationEngine(config *AutomationEngineConfig, logger *logrus.Logger) (*AutomationEngine, error) {
	return &AutomationEngine{}, nil
}

func NewVisualizationEngine(config *VisualizationEngineConfig, logger *logrus.Logger) (*VisualizationEngine, error) {
	return &VisualizationEngine{}, nil
}

func NewReportingEngine(config *ReportingEngineConfig, logger *logrus.Logger) (*ReportingEngine, error) {
	return &ReportingEngine{}, nil
}

func NewMLHuntingEngine(config *MLEngineConfig, logger *logrus.Logger) (*MLHuntingEngine, error) {
	return &MLHuntingEngine{}, nil
}

func NewAIHuntingAssistant(config *AIAssistantConfig, logger *logrus.Logger) (*AIHuntingAssistant, error) {
	return &AIHuntingAssistant{}, nil
}

// Additional method stubs
func (he *HuntingEngine) DetermineStrategy(ctx context.Context, hypothesis *ThreatHypothesis, request *ThreatHuntRequest) (*HuntStrategy, error) {
	return &HuntStrategy{}, nil
}

func (hw *HuntingWorkflow) InitializeWorkflow(ctx context.Context, hunt *ThreatHunt) (*HuntingWorkflow, error) {
	return hw, nil
}

func (ae *AutomationEngine) StartAutomatedHunt(ctx context.Context, hunt *ThreatHunt) error {
	return nil
}

func (ce *CollaborationEngine) NotifyHuntStarted(ctx context.Context, hunt *ThreatHunt) error {
	return nil
}

func (ce *CollaborationEngine) NotifyHuntCompleted(ctx context.Context, hunt *ThreatHunt, results *ThreatHuntResults) error {
	return nil
}

func (th *AdvancedThreatHunter) executeTechnique(ctx context.Context, hunt *ThreatHunt, technique *HuntTechnique) (*TechniqueResults, error) {
	return &TechniqueResults{}, nil
}

func (th *AdvancedThreatHunter) executeQuery(ctx context.Context, hunt *ThreatHunt, query *HuntQuery) (*QueryResults, error) {
	return &QueryResults{}, nil
}

func (th *AdvancedThreatHunter) executeAnalytic(ctx context.Context, hunt *ThreatHunt, analytic *HuntAnalytic) (*AnalyticResults, error) {
	return &AnalyticResults{}, nil
}

func (th *AdvancedThreatHunter) processQueryResults(results *QueryResults, query *HuntQuery) []*ThreatFinding {
	return []*ThreatFinding{}
}

func (th *AdvancedThreatHunter) processAnalyticResults(results *AnalyticResults, analytic *HuntAnalytic) []*ThreatFinding {
	return []*ThreatFinding{}
}

func (ce *CorrelationEngine) CorrelateFindings(ctx context.Context, findings []*ThreatFinding) (*CorrelationResults, error) {
	return &CorrelationResults{}, nil
}

func (tie *ThreatIntelligenceEngine) EnrichFindings(ctx context.Context, findings []*ThreatFinding) (*IntelligenceResults, error) {
	return &IntelligenceResults{}, nil
}

func (mle *MLHuntingEngine) AnalyzeHuntResults(ctx context.Context, results *ThreatHuntResults) (*MLResults, error) {
	return &MLResults{}, nil
}

func (aia *AIHuntingAssistant) GenerateInsights(ctx context.Context, hunt *ThreatHunt, results *ThreatHuntResults) (*AIInsights, error) {
	return &AIInsights{}, nil
}

func (th *AdvancedThreatHunter) generateRecommendations(ctx context.Context, hunt *ThreatHunt, results *ThreatHuntResults) ([]*types.Recommendation, error) {
	return []*types.Recommendation{}, nil
}

func (tkb *ThreatKnowledgeBase) StoreHuntResults(ctx context.Context, hunt *ThreatHunt, results *ThreatHuntResults) error {
	return nil
}

func (re *ReportingEngine) GenerateHuntReport(ctx context.Context, hunt *ThreatHunt, results *ThreatHuntResults) (*HuntReport, error) {
	return &HuntReport{}, nil
}

func (ie *InvestigationEngine) InitializeInvestigation(ctx context.Context, investigation *ThreatInvestigation) error {
	return nil
}

// Additional type stubs
type HuntingWorkflow struct{}
type ThreatKnowledgeBase struct{}
type CollaborationEngine struct{}
type AutomationEngine struct{}

// Conversion function for hypothesis types
func convertTypesHypothesis(th *types.ThreatHypothesis) *ThreatHypothesis {
	if th == nil {
		return nil
	}

	return &ThreatHypothesis{
		ID:                th.ID,
		Statement:         th.Text, // Map Text to Statement
		Rationale:         "Generated hypothesis",
		Assumptions:       []string{},
		TestableQuestions: []string{},
		Confidence:        th.Confidence,
		Probability:       0.5,
	}
}

type VisualizationEngine struct{}
type ReportingEngine struct{}
type MLHuntingEngine struct{}
type AIHuntingAssistant struct{}
type HuntPhase struct {
	ID         string           `json:"id"`
	Name       string           `json:"name"`
	Techniques []*HuntTechnique `json:"techniques"`
	Queries    []*HuntQuery     `json:"queries"`
	Analytics  []*HuntAnalytic  `json:"analytics"`
}
type HuntTechnique struct {
	Name string `json:"name"`
}
type HuntQuery struct {
	Name string `json:"name"`
}
type HuntAnalytic struct {
	Name string `json:"name"`
}
type HuntPhaseResults struct {
	PhaseID    string                  `json:"phase_id"`
	PhaseName  string                  `json:"phase_name"`
	StartTime  time.Time               `json:"start_time"`
	EndTime    time.Time               `json:"end_time"`
	Duration   time.Duration           `json:"duration"`
	Success    bool                    `json:"success"`
	Findings   []*ThreatFinding        `json:"findings"`
	Evidence   []*types.Evidence       `json:"evidence"`
	IOCs       []*types.IOC            `json:"iocs"`
	Techniques []*types.MITRETechnique `json:"techniques"`
}
type TechniqueResults struct {
	Findings   []*ThreatFinding        `json:"findings"`
	Evidence   []*types.Evidence       `json:"evidence"`
	IOCs       []*types.IOC            `json:"iocs"`
	Techniques []*types.MITRETechnique `json:"techniques"`
}
type QueryResults struct{}
type AnalyticResults struct{}
type CorrelationResults struct{}
type IntelligenceResults struct{}
type MLResults struct{}
type AIInsights struct{}
type HuntReport struct{}

// Additional configuration stubs
type BehaviorAnalyzerConfig struct{}
type AnomalyDetectorConfig struct{}
type CorrelationEngineConfig struct{}
type IntelligenceEngineConfig struct{}
type HypothesisGeneratorConfig struct{}
type InvestigationEngineConfig struct{}
type HuntingWorkflowConfig struct{}
type KnowledgeBaseConfig struct{}
type CollaborationEngineConfig struct{}
type AutomationEngineConfig struct{}
type VisualizationEngineConfig struct{}
type ReportingEngineConfig struct{}
type MLEngineConfig struct{}
type AIAssistantConfig struct{}
