Pulse/internal/api/ai_handlers.go

package api

import (
	"context"
	"encoding/csv"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"net/http"
	"net/url"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"sync"
	"sync/atomic"
	"time"

	"github.com/rcourtman/pulse-go-rewrite/internal/agentexec"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/approval"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/chat"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/circuit"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/cost"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/forecast"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/learning"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/memory"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/providers"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/proxmox"
	"github.com/rcourtman/pulse-go-rewrite/internal/ai/unified"
	"github.com/rcourtman/pulse-go-rewrite/internal/config"
	"github.com/rcourtman/pulse-go-rewrite/internal/metrics"
	"github.com/rcourtman/pulse-go-rewrite/internal/mockmode"
	"github.com/rcourtman/pulse-go-rewrite/internal/monitoring"
	"github.com/rcourtman/pulse-go-rewrite/internal/servicediscovery"
	"github.com/rcourtman/pulse-go-rewrite/internal/unifiedresources"
	"github.com/rcourtman/pulse-go-rewrite/internal/utils"
	"github.com/rcourtman/pulse-go-rewrite/pkg/aicontracts"
	"github.com/rcourtman/pulse-go-rewrite/pkg/extensions"
	"github.com/rs/zerolog/log"
)

// AISettingsHandler handles AI settings endpoints
type AISettingsHandler struct {
	stateMu                 sync.RWMutex
	mtPersistence           *config.MultiTenantPersistence
	mtMonitor               *monitoring.MultiTenantMonitor
	defaultConfig           *config.Config
	defaultPersistence      *config.ConfigPersistence
	hostedMode              bool
	defaultAIService        *ai.Service
	aiServices              map[string]*ai.Service
	aiServicesMu            sync.RWMutex
	agentServer             *agentexec.Server
	onModelChange           func() // Called when model or other AI chat-affecting settings change
	onControlSettingsChange func() // Called when control level or protected guests change

	// Providers to be applied to new services
	stateProvider           ai.StateProvider
	readState               unifiedresources.ReadState
	unifiedResourceProvider ai.UnifiedResourceProvider
	metadataProvider        ai.MetadataProvider
	patrolThresholdProvider ai.ThresholdProvider
	metricsHistoryProvider  ai.MetricsHistoryProvider
	baselineStore           *ai.BaselineStore
	changeDetector          *ai.ChangeDetector
	remediationLog          *ai.RemediationLog
	incidentStore           *memory.IncidentStore
	patternDetector         *ai.PatternDetector
	correlationDetector     *ai.CorrelationDetector
	licenseHandlers         *LicenseHandlers

	// New AI intelligence services (Phase 6)
	circuitBreaker    *circuit.Breaker              // Circuit breaker for resilient patrol
	learningStore     *learning.LearningStore       // Feedback learning
	forecastService   *forecast.Service             // Trend forecasting
	proxmoxCorrelator *proxmox.EventCorrelator      // Proxmox event correlation
	remediationEngine aicontracts.RemediationEngine // AI-guided remediation
	unifiedStore      *unified.UnifiedStore         // Unified alert/finding store
	alertBridge       *unified.AlertBridge          // Bridge between alerts and unified store

	// Event-driven patrol (Phase 7)
	triggerManager       *ai.TriggerManager        // Event-driven patrol trigger manager
	incidentCoordinator  *ai.IncidentCoordinator   // Incident recording coordinator
	incidentRecorder     *metrics.IncidentRecorder // High-frequency incident recorder
	intelligenceMu       sync.RWMutex
	proxmoxCorrelators   map[string]*proxmox.EventCorrelator
	learningStores       map[string]*learning.LearningStore
	forecastServices     map[string]*forecast.Service
	remediationEngines   map[string]aicontracts.RemediationEngine
	incidentStores       map[string]*memory.IncidentStore
	circuitBreakers      map[string]*circuit.Breaker
	discoveryStores      map[string]*servicediscovery.Store
	unifiedStores        map[string]*unified.UnifiedStore
	alertBridges         map[string]*unified.AlertBridge
	triggerManagers      map[string]*ai.TriggerManager
	incidentCoordinators map[string]*ai.IncidentCoordinator
	incidentRecorders    map[string]*metrics.IncidentRecorder

	// Investigation orchestration (Patrol Autonomy)
	chatHandler         *AIHandler                                // Chat service handler for investigations
	investigationStores map[string]aicontracts.InvestigationStore // Investigation stores per org
	investigationMu     sync.RWMutex

	// Extension endpoints for enterprise feature gating
	aiAutoFixEndpoints extensions.AIAutoFixEndpoints

	// Discovery store for deep infrastructure discovery
	discoveryStore *servicediscovery.Store
}

// SetAIAutoFixEndpoints sets the resolved AI auto-fix extension endpoints.
// Called during route registration so the approval handler can delegate investigation fix approvals.
func (h *AISettingsHandler) SetAIAutoFixEndpoints(ep extensions.AIAutoFixEndpoints) {
	h.aiAutoFixEndpoints = ep
}

func (h *AISettingsHandler) stateRefs() (
	*config.MultiTenantPersistence,
	*monitoring.MultiTenantMonitor,
	*config.Config,
	*config.ConfigPersistence,
	unifiedresources.ReadState,
	ai.UnifiedResourceProvider,
) {
	h.stateMu.RLock()
	defer h.stateMu.RUnlock()
	return h.mtPersistence, h.mtMonitor, h.defaultConfig, h.defaultPersistence, h.readState, h.unifiedResourceProvider
}

type aiSettingsProviderSnapshot struct {
	defaultAIService        *ai.Service
	stateProvider           ai.StateProvider
	metadataProvider        ai.MetadataProvider
	patrolThresholdProvider ai.ThresholdProvider
	metricsHistoryProvider  ai.MetricsHistoryProvider
	baselineStore           *ai.BaselineStore
	changeDetector          *ai.ChangeDetector
	remediationLog          *ai.RemediationLog
	incidentStore           *memory.IncidentStore
	patternDetector         *ai.PatternDetector
	correlationDetector     *ai.CorrelationDetector
	discoveryStore          *servicediscovery.Store
	licenseHandlers         *LicenseHandlers
	chatHandler             *AIHandler
}

type failClosedLicenseChecker struct{}

func (failClosedLicenseChecker) HasFeature(string) bool { return false }
func (failClosedLicenseChecker) GetLicenseStateString() (string, bool) {
	return string(ai.LicenseStateNone), false
}

func (h *AISettingsHandler) providerSnapshot() aiSettingsProviderSnapshot {
	h.stateMu.RLock()
	defer h.stateMu.RUnlock()
	return aiSettingsProviderSnapshot{
		defaultAIService:        h.defaultAIService,
		stateProvider:           h.stateProvider,
		metadataProvider:        h.metadataProvider,
		patrolThresholdProvider: h.patrolThresholdProvider,
		metricsHistoryProvider:  h.metricsHistoryProvider,
		baselineStore:           h.baselineStore,
		changeDetector:          h.changeDetector,
		remediationLog:          h.remediationLog,
		incidentStore:           h.incidentStore,
		patternDetector:         h.patternDetector,
		correlationDetector:     h.correlationDetector,
		discoveryStore:          h.discoveryStore,
		licenseHandlers:         h.licenseHandlers,
		chatHandler:             h.chatHandler,
	}
}

func (h *AISettingsHandler) newFailClosedTenantService(orgID string) *ai.Service {
	svc := ai.NewService(nil, h.agentServer)
	svc.SetOrgID(orgID)
	svc.SetAlertAnalyzerFactory(getCreateAlertAnalyzer())
	svc.SetLicenseChecker(failClosedLicenseChecker{})
	return svc
}

// NewAISettingsHandler creates a new AI settings handler
func NewAISettingsHandler(mtp *config.MultiTenantPersistence, mtm *monitoring.MultiTenantMonitor, agentServer *agentexec.Server) *AISettingsHandler {
	var defaultConfig *config.Config
	var defaultPersistence *config.ConfigPersistence
	var defaultAIService *ai.Service
	hostedMode := hostedModeEnabledFromEnv()

	if mtm != nil {
		if m, err := mtm.GetMonitor("default"); err == nil && m != nil {
			defaultConfig = m.GetConfig()
		}
	}
	if mtp != nil {
		if p, err := mtp.GetPersistence("default"); err == nil {
			defaultPersistence = p
		}
	}

	handler := &AISettingsHandler{
		mtPersistence:        mtp,
		mtMonitor:            mtm,
		defaultConfig:        defaultConfig,
		defaultPersistence:   defaultPersistence,
		hostedMode:           hostedMode,
		aiServices:           make(map[string]*ai.Service),
		agentServer:          agentServer,
		proxmoxCorrelators:   make(map[string]*proxmox.EventCorrelator),
		learningStores:       make(map[string]*learning.LearningStore),
		forecastServices:     make(map[string]*forecast.Service),
		remediationEngines:   make(map[string]aicontracts.RemediationEngine),
		incidentStores:       make(map[string]*memory.IncidentStore),
		circuitBreakers:      make(map[string]*circuit.Breaker),
		discoveryStores:      make(map[string]*servicediscovery.Store),
		unifiedStores:        make(map[string]*unified.UnifiedStore),
		alertBridges:         make(map[string]*unified.AlertBridge),
		triggerManagers:      make(map[string]*ai.TriggerManager),
		incidentCoordinators: make(map[string]*ai.IncidentCoordinator),
		incidentRecorders:    make(map[string]*metrics.IncidentRecorder),
	}

	defaultAIService = ai.NewService(defaultPersistence, agentServer)
	defaultAIService.SetOrgID("default")
	defaultAIService.SetAlertAnalyzerFactory(getCreateAlertAnalyzer())
	// Wire quickstart credit manager before LoadConfig so the quickstart
	// provider path is available during initial configuration.
	if defaultPersistence != nil {
		qsMgr := ai.NewPersistentQuickstartCreditManager(
			defaultPersistence,
			"default",
			func() *config.AIConfig {
				cfg, _ := handler.loadAIConfigForPersistence(context.Background(), "default", defaultPersistence)
				return cfg
			},
		)
		defaultAIService.SetQuickstartCredits(qsMgr)
		if _, err := handler.loadAIConfigForPersistence(context.Background(), "default", defaultPersistence); err != nil {
			log.Warn().Err(err).Msg("Failed to bootstrap Pulse Assistant config on startup")
		}
		if err := defaultAIService.LoadConfig(); err != nil {
			log.Warn().Err(err).Msg("Failed to load AI config on startup")
		}
	}
	handler.defaultAIService = defaultAIService

	return handler
}

func (h *AISettingsHandler) loadAIConfigForPersistence(_ context.Context, orgID string, persistence *config.ConfigPersistence) (*config.AIConfig, error) {
	if persistence == nil {
		return nil, fmt.Errorf("Pulse Assistant config persistence unavailable")
	}
	billingBaseDir := persistence.DataDir()
	if h != nil && h.mtPersistence != nil {
		billingBaseDir = h.mtPersistence.BaseDataDir()
	}
	return loadHostedAwareAIConfig(h != nil && h.hostedMode, billingBaseDir, orgID, persistence)
}

func (h *AISettingsHandler) loadAIConfig(ctx context.Context) (*config.AIConfig, error) {
	persistence := h.getPersistence(ctx)
	if persistence == nil {
		return nil, fmt.Errorf("Pulse Assistant config persistence unavailable")
	}
	orgID := strings.TrimSpace(GetOrgID(ctx))
	if orgID == "" {
		orgID = "default"
	}
	return h.loadAIConfigForPersistence(ctx, orgID, persistence)
}

// GetAIService returns the underlying AI service
func (h *AISettingsHandler) GetAIService(ctx context.Context) *ai.Service {
	mtPersistence, mtMonitor, _, _, _, _ := h.stateRefs()
	providers := h.providerSnapshot()
	defaultAIService := providers.defaultAIService

	orgID := GetOrgID(ctx)
	if orgID == "default" || orgID == "" {
		return defaultAIService
	}
	if mtPersistence == nil {
		if mtMonitor != nil {
			log.Warn().Str("orgID", orgID).Msg("Failed to get persistence manager for tenant AI service")
			return h.newFailClosedTenantService(orgID)
		}
		return defaultAIService
	}

	h.aiServicesMu.RLock()
	svc, exists := h.aiServices[orgID]
	h.aiServicesMu.RUnlock()

	if exists {
		return svc
	}

	h.aiServicesMu.Lock()
	defer h.aiServicesMu.Unlock()

	// Double check
	if svc, exists = h.aiServices[orgID]; exists {
		return svc
	}

	// Create new service for this tenant
	persistence, err := mtPersistence.GetPersistence(orgID)
	if err != nil {
		log.Warn().Str("orgID", orgID).Err(err).Msg("Failed to get persistence for AI service")
		return h.newFailClosedTenantService(orgID)
	}
	if persistence == nil {
		log.Warn().Str("orgID", orgID).Msg("Tenant persistence unavailable for AI service")
		return h.newFailClosedTenantService(orgID)
	}

	svc = ai.NewService(persistence, h.agentServer)
	svc.SetOrgID(orgID)
	svc.SetAlertAnalyzerFactory(getCreateAlertAnalyzer())
	// Wire quickstart credit manager before LoadConfig so the quickstart
	// provider path is available during initial configuration.
	qsMgr := ai.NewPersistentQuickstartCreditManager(
		persistence,
		orgID,
		func() *config.AIConfig {
			cfg, _ := h.loadAIConfigForPersistence(context.Background(), orgID, persistence)
			return cfg
		},
	)
	svc.SetQuickstartCredits(qsMgr)
	if _, err := h.loadAIConfigForPersistence(context.Background(), orgID, persistence); err != nil {
		log.Warn().Str("orgID", orgID).Err(err).Msg("Failed to bootstrap Pulse Assistant config for tenant")
	}
	if err := svc.LoadConfig(); err != nil {
		log.Warn().Str("orgID", orgID).Err(err).Msg("Failed to load AI config for tenant")
	}

	// Set providers on new service
	svc.SetStateProvider(h.stateProviderForOrg(orgID, providers.stateProvider))
	if readState := h.readStateForOrg(orgID); readState != nil {
		svc.SetReadState(readState)
	}
	if provider := h.unifiedResourceProviderForOrg(orgID); provider != nil {
		svc.SetUnifiedResourceProvider(provider)
	}
	if providers.metadataProvider != nil {
		svc.SetMetadataProvider(providers.metadataProvider)
	}
	if orgID == "default" {
		if providers.patrolThresholdProvider != nil {
			svc.SetPatrolThresholdProvider(providers.patrolThresholdProvider)
		}
		if providers.metricsHistoryProvider != nil {
			svc.SetMetricsHistoryProvider(providers.metricsHistoryProvider)
		}
		if providers.baselineStore != nil {
			svc.SetBaselineStore(providers.baselineStore)
		}
		if providers.changeDetector != nil {
			svc.SetChangeDetector(providers.changeDetector)
		}
		if providers.remediationLog != nil {
			svc.SetRemediationLog(providers.remediationLog)
		}
	}
	if incidentStore := h.GetIncidentStoreForOrg(orgID); incidentStore != nil {
		svc.SetIncidentStore(incidentStore)
	} else if orgID == "default" && providers.incidentStore != nil {
		svc.SetIncidentStore(providers.incidentStore)
	}
	if orgID == "default" {
		if providers.patternDetector != nil {
			svc.SetPatternDetector(providers.patternDetector)
		}
		if providers.correlationDetector != nil {
			svc.SetCorrelationDetector(providers.correlationDetector)
		}
	}
	if discoveryStore := h.GetDiscoveryStoreForOrg(orgID); discoveryStore != nil {
		svc.SetDiscoveryStore(discoveryStore)
	} else if orgID == "default" && providers.discoveryStore != nil {
		svc.SetDiscoveryStore(providers.discoveryStore)
	}

	// Set license checker if handler available
	if providers.licenseHandlers != nil {
		// Used context to resolve tenant license service
		if licSvc, _, err := providers.licenseHandlers.getTenantComponents(ctx); err == nil {
			svc.SetLicenseChecker(licSvc)
		}
	}

	// Set up investigation orchestrator if chat handler is available
	if providers.chatHandler != nil && isAIInvestigationEnabled() {
		h.setupInvestigationOrchestrator(orgID, svc)
	}

	h.aiServices[orgID] = svc
	return svc
}

// RemoveTenantService removes the AI settings service for a specific tenant.
func (h *AISettingsHandler) RemoveTenantService(orgID string) {
	orgID = strings.TrimSpace(orgID)
	if orgID == "default" || orgID == "" {
		return
	}

	h.aiServicesMu.Lock()
	svc := h.aiServices[orgID]
	delete(h.aiServices, orgID)
	h.aiServicesMu.Unlock()
	if svc != nil {
		svc.StopPatrol()
	}

	h.RemoveTenantIntelligence(orgID)

	h.investigationMu.Lock()
	delete(h.investigationStores, orgID)
	h.investigationMu.Unlock()

	log.Debug().Str("orgID", orgID).Msg("Removed AI settings service for tenant")
}

// getConfig returns the config for the current context
func (h *AISettingsHandler) getConfig(ctx context.Context) *config.Config {
	_, mtMonitor, defaultConfig, _, _, _ := h.stateRefs()
	orgID := strings.TrimSpace(GetOrgID(ctx))
	if orgID == "" || orgID == "default" {
		return defaultConfig
	}
	if mtMonitor != nil {
		if m, err := mtMonitor.GetMonitor(orgID); err == nil && m != nil {
			return m.GetConfig()
		}
		// Security: never fall back to default config for non-default orgs.
		return nil
	}
	return defaultConfig
}

// GetPersistence returns the persistence for the current context
func (h *AISettingsHandler) getPersistence(ctx context.Context) *config.ConfigPersistence {
	mtPersistence, _, _, defaultPersistence, _, _ := h.stateRefs()
	orgID := strings.TrimSpace(GetOrgID(ctx))
	if orgID == "" || orgID == "default" {
		return defaultPersistence
	}
	if mtPersistence != nil {
		if p, err := mtPersistence.GetPersistence(orgID); err == nil && p != nil {
			return p
		}
		// Security: never fall back to default persistence for non-default orgs.
		return nil
	}
	return defaultPersistence
}

// SetMultiTenantPersistence updates the persistence manager
func (h *AISettingsHandler) SetMultiTenantPersistence(mtp *config.MultiTenantPersistence) {
	h.stateMu.Lock()
	defer h.stateMu.Unlock()
	h.mtPersistence = mtp
}

// SetMultiTenantMonitor updates the monitor manager
func (h *AISettingsHandler) SetMultiTenantMonitor(mtm *monitoring.MultiTenantMonitor) {
	h.stateMu.Lock()
	defer h.stateMu.Unlock()
	h.mtMonitor = mtm
}

// SetConfig updates the configuration reference used by the handler.
func (h *AISettingsHandler) SetConfig(cfg *config.Config) {
	if cfg == nil {
		return
	}
	h.stateMu.Lock()
	defer h.stateMu.Unlock()
	h.defaultConfig = cfg
}

// setSSECORSHeaders validates the request origin against the configured AllowedOrigins
// and sets CORS headers only for allowed origins. This prevents arbitrary origin reflection.
func (h *AISettingsHandler) setSSECORSHeaders(w http.ResponseWriter, r *http.Request) {
	origin := r.Header.Get("Origin")
	if origin == "" {
		return
	}

	cfg := h.getConfig(r.Context())
	if cfg == nil {
		return
	}

	allowed := cfg.AllowedOrigins
	if allowed == "" {
		return
	}

	applyConfiguredCORSHeaders(w, origin, allowed, "GET, POST, OPTIONS", "Content-Type, Accept, Cookie")
}

// SetStateProvider sets the state provider for infrastructure context
func (h *AISettingsHandler) SetStateProvider(sp ai.StateProvider) {
	h.stateMu.Lock()
	h.stateProvider = sp
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetStateProvider(sp)
	}

	h.aiServicesMu.Lock()
	for orgID, svc := range h.aiServices {
		svc.SetStateProvider(h.stateProviderForOrg(orgID, sp))
	}
	h.aiServicesMu.Unlock()

	// Now that state provider is set, patrol service should be available.
	// Try to set up the investigation orchestrator if chat handler is ready.
	// Note: This usually fails because chat service isn't started yet.
	// The orchestrator will be wired via WireOrchestratorAfterChatStart() instead.
	if defaultAIService != nil && isAIInvestigationEnabled() {
		h.setupInvestigationOrchestrator("default", defaultAIService)
		h.aiServicesMu.RLock()
		for orgID, svc := range h.aiServices {
			h.setupInvestigationOrchestrator(orgID, svc)
		}
		h.aiServicesMu.RUnlock()
	}
}

// GetStateProvider returns the state provider for infrastructure context
func (h *AISettingsHandler) GetStateProvider() ai.StateProvider {
	h.stateMu.RLock()
	defer h.stateMu.RUnlock()
	return h.stateProvider
}

func (h *AISettingsHandler) stateProviderForOrg(orgID string, fallback ai.StateProvider) ai.StateProvider {
	orgID = strings.TrimSpace(orgID)
	if orgID == "" || orgID == "default" {
		return fallback
	}
	// Security: never fall back to default-org provider for non-default orgs.
	return nil
}

func (h *AISettingsHandler) readStateForOrg(orgID string) unifiedresources.ReadState {
	if h == nil {
		return nil
	}
	_, mtMonitor, _, _, fallbackReadState, _ := h.stateRefs()
	orgID = strings.TrimSpace(orgID)
	if orgID == "" {
		orgID = "default"
	}

	if mtMonitor != nil {
		if monitor, err := mtMonitor.GetMonitor(orgID); err == nil && monitor != nil {
			if readState := monitor.GetUnifiedReadState(); readState != nil {
				return readState
			}
		}
		if orgID != "default" {
			// Security: never fall back to default-org read state for non-default orgs.
			return nil
		}
	}

	return fallbackReadState
}

func (h *AISettingsHandler) unifiedResourceProviderForOrg(orgID string) ai.UnifiedResourceProvider {
	if h == nil {
		return nil
	}
	_, mtMonitor, _, _, _, fallbackProvider := h.stateRefs()
	orgID = strings.TrimSpace(orgID)
	if orgID == "" {
		orgID = "default"
	}

	if mtMonitor != nil {
		if monitor, err := mtMonitor.GetMonitor(orgID); err == nil && monitor != nil {
			if readState := monitor.GetUnifiedReadState(); readState != nil {
				if provider, ok := readState.(ai.UnifiedResourceProvider); ok && provider != nil {
					return provider
				}
			}
		}
		if orgID != "default" {
			// Security: never fall back to default-org unified provider for non-default orgs.
			return nil
		}
	}

	return fallbackProvider
}

// SetReadState injects unified read-state context into AI services (patrol path).
func (h *AISettingsHandler) SetReadState(rs unifiedresources.ReadState) {
	if h == nil {
		return
	}
	h.stateMu.Lock()
	h.readState = rs
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()

	if defaultAIService != nil {
		defaultAIService.SetReadState(h.readStateForOrg("default"))
	}

	h.aiServicesMu.Lock()
	for orgID, svc := range h.aiServices {
		if svc != nil {
			svc.SetReadState(h.readStateForOrg(orgID))
		}
	}
	h.aiServicesMu.Unlock()
}

// SetUnifiedResourceProvider forwards unified-resource-native context to AI services.
func (h *AISettingsHandler) SetUnifiedResourceProvider(urp ai.UnifiedResourceProvider) {
	if h == nil {
		return
	}
	h.stateMu.Lock()
	h.unifiedResourceProvider = urp
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()

	if defaultAIService != nil {
		defaultAIService.SetUnifiedResourceProvider(h.unifiedResourceProviderForOrg("default"))
	}

	h.aiServicesMu.Lock()
	defer h.aiServicesMu.Unlock()
	for orgID, svc := range h.aiServices {
		if svc != nil {
			svc.SetUnifiedResourceProvider(h.unifiedResourceProviderForOrg(orgID))
		}
	}
}

// SetMetadataProvider sets the metadata provider for AI URL discovery
func (h *AISettingsHandler) SetMetadataProvider(mp ai.MetadataProvider) {
	h.stateMu.Lock()
	h.metadataProvider = mp
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetMetadataProvider(mp)
	}

	h.aiServicesMu.Lock()
	defer h.aiServicesMu.Unlock()
	for _, svc := range h.aiServices {
		svc.SetMetadataProvider(mp)
	}
}

// StartPatrol starts the background AI patrol service
func (h *AISettingsHandler) StartPatrol(ctx context.Context) {
	h.GetAIService(ctx).StartPatrol(ctx)
}

// IsAIEnabled returns true if AI features are enabled
func (h *AISettingsHandler) IsAIEnabled(ctx context.Context) bool {
	return h.GetAIService(ctx).IsEnabled()
}

// SetPatrolThresholdProvider sets the threshold provider for the patrol service
func (h *AISettingsHandler) SetPatrolThresholdProvider(provider ai.ThresholdProvider) {
	h.stateMu.Lock()
	h.patrolThresholdProvider = provider
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetPatrolThresholdProvider(provider)
	}
}

// SetPatrolFindingsPersistence enables findings persistence for the patrol service
func (h *AISettingsHandler) SetPatrolFindingsPersistence(persistence ai.FindingsPersistence) error {
	var firstErr error
	if patrol := h.defaultAIService.GetPatrolService(); patrol != nil {
		if err := patrol.SetFindingsPersistence(persistence); err != nil {
			firstErr = err
		}
	}
	// Also apply to active services
	h.aiServicesMu.RLock()
	defer h.aiServicesMu.RUnlock()
	for orgID, svc := range h.aiServices {
		if patrol := svc.GetPatrolService(); patrol != nil {
			if err := patrol.SetFindingsPersistence(persistence); err != nil {
				log.Warn().Str("orgID", orgID).Err(err).Msg("Failed to set findings persistence for tenant")
				if firstErr == nil {
					firstErr = err
				}
			}
		}
	}
	return firstErr
}

// SetPatrolRunHistoryPersistence enables patrol run history persistence for the patrol service
func (h *AISettingsHandler) SetPatrolRunHistoryPersistence(persistence ai.PatrolHistoryPersistence) error {
	var firstErr error
	if patrol := h.defaultAIService.GetPatrolService(); patrol != nil {
		if err := patrol.SetRunHistoryPersistence(persistence); err != nil {
			firstErr = err
		}
	}
	// Also apply to active services
	h.aiServicesMu.RLock()
	defer h.aiServicesMu.RUnlock()
	for orgID, svc := range h.aiServices {
		if patrol := svc.GetPatrolService(); patrol != nil {
			if err := patrol.SetRunHistoryPersistence(persistence); err != nil {
				log.Warn().Str("orgID", orgID).Err(err).Msg("Failed to set run history persistence for tenant")
				if firstErr == nil {
					firstErr = err
				}
			}
		}
	}
	return firstErr
}

// SetMetricsHistoryProvider sets the metrics history provider for enriched AI context
func (h *AISettingsHandler) SetMetricsHistoryProvider(provider ai.MetricsHistoryProvider) {
	h.stateMu.Lock()
	h.metricsHistoryProvider = provider
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetMetricsHistoryProvider(provider)
	}
}

// SetBaselineStore sets the baseline store for anomaly detection
func (h *AISettingsHandler) SetBaselineStore(store *ai.BaselineStore) {
	h.stateMu.Lock()
	h.baselineStore = store
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetBaselineStore(store)
	}
}

// SetChangeDetector sets the change detector for operational memory
func (h *AISettingsHandler) SetChangeDetector(detector *ai.ChangeDetector) {
	h.stateMu.Lock()
	h.changeDetector = detector
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetChangeDetector(detector)
	}
}

// SetRemediationLog sets the remediation log for tracking fix attempts
func (h *AISettingsHandler) SetRemediationLog(remLog *ai.RemediationLog) {
	h.stateMu.Lock()
	h.remediationLog = remLog
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetRemediationLog(remLog)
	}
}

// SetIncidentStore sets the incident store for the default org.
func (h *AISettingsHandler) SetIncidentStore(store *memory.IncidentStore) {
	h.SetIncidentStoreForOrg("default", store)
}

// SetIncidentStoreForOrg sets the incident store for alert timelines for an org.
func (h *AISettingsHandler) SetIncidentStoreForOrg(orgID string, store *memory.IncidentStore) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if store == nil {
		delete(h.incidentStores, orgID)
	} else {
		h.incidentStores[orgID] = store
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.stateMu.Lock()
		h.incidentStore = store
		defaultAIService := h.defaultAIService
		h.stateMu.Unlock()
		if defaultAIService != nil {
			defaultAIService.SetIncidentStore(store)
		}
	}

	h.aiServicesMu.RLock()
	svc := h.aiServices[orgID]
	h.aiServicesMu.RUnlock()
	if svc != nil {
		svc.SetIncidentStore(store)
	}
}

// GetIncidentStoreForOrg returns the incident store for an org.
func (h *AISettingsHandler) GetIncidentStoreForOrg(orgID string) *memory.IncidentStore {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if store := h.incidentStores[orgID]; store != nil {
		h.intelligenceMu.RUnlock()
		return store
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		h.stateMu.RLock()
		store := h.incidentStore
		h.stateMu.RUnlock()
		return store
	}
	return nil
}

// SetPatternDetector sets the pattern detector for failure prediction
func (h *AISettingsHandler) SetPatternDetector(detector *ai.PatternDetector) {
	h.stateMu.Lock()
	h.patternDetector = detector
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetPatternDetector(detector)
	}
}

// SetCorrelationDetector sets the correlation detector for multi-resource correlation
func (h *AISettingsHandler) SetCorrelationDetector(detector *ai.CorrelationDetector) {
	h.stateMu.Lock()
	h.correlationDetector = detector
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if defaultAIService != nil {
		defaultAIService.SetCorrelationDetector(detector)
	}
}

// SetCircuitBreaker sets the circuit breaker for the default org.
func (h *AISettingsHandler) SetCircuitBreaker(breaker *circuit.Breaker) {
	h.SetCircuitBreakerForOrg("default", breaker)
}

// SetCircuitBreakerForOrg sets the circuit breaker for an org.
func (h *AISettingsHandler) SetCircuitBreakerForOrg(orgID string, breaker *circuit.Breaker) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if breaker == nil {
		delete(h.circuitBreakers, orgID)
	} else {
		h.circuitBreakers[orgID] = breaker
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.circuitBreaker = breaker
	}
}

// GetCircuitBreaker returns the circuit breaker for the default org.
func (h *AISettingsHandler) GetCircuitBreaker() *circuit.Breaker {
	return h.GetCircuitBreakerForOrg("default")
}

// GetCircuitBreakerForOrg returns the circuit breaker for an org.
func (h *AISettingsHandler) GetCircuitBreakerForOrg(orgID string) *circuit.Breaker {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if breaker := h.circuitBreakers[orgID]; breaker != nil {
		h.intelligenceMu.RUnlock()
		return breaker
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.circuitBreaker
	}
	return nil
}

// SetLearningStore sets the learning store for the default org.
func (h *AISettingsHandler) SetLearningStore(store *learning.LearningStore) {
	h.SetLearningStoreForOrg("default", store)
}

// SetLearningStoreForOrg sets the learning store for an org.
func (h *AISettingsHandler) SetLearningStoreForOrg(orgID string, store *learning.LearningStore) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if store == nil {
		delete(h.learningStores, orgID)
	} else {
		h.learningStores[orgID] = store
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.learningStore = store
	}
}

// GetLearningStore returns the learning store for the default org.
func (h *AISettingsHandler) GetLearningStore() *learning.LearningStore {
	return h.GetLearningStoreForOrg("default")
}

// GetLearningStoreForOrg returns the learning store for an org.
func (h *AISettingsHandler) GetLearningStoreForOrg(orgID string) *learning.LearningStore {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if store := h.learningStores[orgID]; store != nil {
		h.intelligenceMu.RUnlock()
		return store
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.learningStore
	}
	return nil
}

// SetForecastService sets the forecast service for the default org.
func (h *AISettingsHandler) SetForecastService(svc *forecast.Service) {
	h.SetForecastServiceForOrg("default", svc)
}

// SetForecastServiceForOrg sets the forecast service for an org.
func (h *AISettingsHandler) SetForecastServiceForOrg(orgID string, svc *forecast.Service) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if svc == nil {
		delete(h.forecastServices, orgID)
	} else {
		h.forecastServices[orgID] = svc
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.forecastService = svc
	}
}

// GetForecastService returns the forecast service for the default org.
func (h *AISettingsHandler) GetForecastService() *forecast.Service {
	return h.GetForecastServiceForOrg("default")
}

// GetForecastServiceForOrg returns the forecast service for an org.
func (h *AISettingsHandler) GetForecastServiceForOrg(orgID string) *forecast.Service {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if svc := h.forecastServices[orgID]; svc != nil {
		h.intelligenceMu.RUnlock()
		return svc
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.forecastService
	}
	return nil
}

func normalizeAIIntelligenceOrgID(orgID string) string {
	orgID = strings.TrimSpace(orgID)
	if orgID == "" {
		return "default"
	}
	return orgID
}

func (h *AISettingsHandler) ensureIntelligenceMapsLocked() {
	if h.proxmoxCorrelators == nil {
		h.proxmoxCorrelators = make(map[string]*proxmox.EventCorrelator)
	}
	if h.learningStores == nil {
		h.learningStores = make(map[string]*learning.LearningStore)
	}
	if h.forecastServices == nil {
		h.forecastServices = make(map[string]*forecast.Service)
	}
	if h.remediationEngines == nil {
		h.remediationEngines = make(map[string]aicontracts.RemediationEngine)
	}
	if h.incidentStores == nil {
		h.incidentStores = make(map[string]*memory.IncidentStore)
	}
	if h.circuitBreakers == nil {
		h.circuitBreakers = make(map[string]*circuit.Breaker)
	}
	if h.discoveryStores == nil {
		h.discoveryStores = make(map[string]*servicediscovery.Store)
	}
	if h.alertBridges == nil {
		h.alertBridges = make(map[string]*unified.AlertBridge)
	}
	if h.unifiedStores == nil {
		h.unifiedStores = make(map[string]*unified.UnifiedStore)
	}
	if h.triggerManagers == nil {
		h.triggerManagers = make(map[string]*ai.TriggerManager)
	}
	if h.incidentCoordinators == nil {
		h.incidentCoordinators = make(map[string]*ai.IncidentCoordinator)
	}
	if h.incidentRecorders == nil {
		h.incidentRecorders = make(map[string]*metrics.IncidentRecorder)
	}
}

// SetProxmoxCorrelatorForOrg sets the Proxmox event correlator for an org.
func (h *AISettingsHandler) SetProxmoxCorrelatorForOrg(orgID string, correlator *proxmox.EventCorrelator) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if correlator == nil {
		delete(h.proxmoxCorrelators, orgID)
	} else {
		h.proxmoxCorrelators[orgID] = correlator
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.proxmoxCorrelator = correlator
	}
}

// SetProxmoxCorrelator sets the Proxmox event correlator
func (h *AISettingsHandler) SetProxmoxCorrelator(correlator *proxmox.EventCorrelator) {
	h.SetProxmoxCorrelatorForOrg("default", correlator)
}

// GetProxmoxCorrelatorForOrg returns the Proxmox event correlator for an org.
func (h *AISettingsHandler) GetProxmoxCorrelatorForOrg(orgID string) *proxmox.EventCorrelator {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if correlator := h.proxmoxCorrelators[orgID]; correlator != nil {
		h.intelligenceMu.RUnlock()
		return correlator
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.proxmoxCorrelator
	}
	return nil
}

// GetProxmoxCorrelator returns the Proxmox event correlator
func (h *AISettingsHandler) GetProxmoxCorrelator() *proxmox.EventCorrelator {
	return h.GetProxmoxCorrelatorForOrg("default")
}

// SetRemediationEngine sets the remediation engine for the default org.
func (h *AISettingsHandler) SetRemediationEngine(engine aicontracts.RemediationEngine) {
	h.SetRemediationEngineForOrg("default", engine)
}

// SetRemediationEngineForOrg sets the remediation engine for an org.
func (h *AISettingsHandler) SetRemediationEngineForOrg(orgID string, engine aicontracts.RemediationEngine) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if engine == nil {
		delete(h.remediationEngines, orgID)
	} else {
		h.remediationEngines[orgID] = engine
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.remediationEngine = engine
	}
}

// GetRemediationEngine returns the remediation engine for the default org.
func (h *AISettingsHandler) GetRemediationEngine() aicontracts.RemediationEngine {
	return h.GetRemediationEngineForOrg("default")
}

// GetRemediationEngineForOrg returns the remediation engine for an org.
func (h *AISettingsHandler) GetRemediationEngineForOrg(orgID string) aicontracts.RemediationEngine {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if engine := h.remediationEngines[orgID]; engine != nil {
		h.intelligenceMu.RUnlock()
		return engine
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.remediationEngine
	}
	return nil
}

// SetUnifiedStore sets the unified store for the default org.
func (h *AISettingsHandler) SetUnifiedStore(store *unified.UnifiedStore) {
	h.SetUnifiedStoreForOrg("default", store)
}

// SetUnifiedStoreForOrg sets the unified store for an org.
func (h *AISettingsHandler) SetUnifiedStoreForOrg(orgID string, store *unified.UnifiedStore) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if store == nil {
		delete(h.unifiedStores, orgID)
	} else {
		h.unifiedStores[orgID] = store
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.unifiedStore = store
	}
}

// GetUnifiedStore returns the unified store for the default org.
func (h *AISettingsHandler) GetUnifiedStore() *unified.UnifiedStore {
	return h.GetUnifiedStoreForOrg("default")
}

// GetUnifiedStoreForOrg returns the unified store for an org.
func (h *AISettingsHandler) GetUnifiedStoreForOrg(orgID string) *unified.UnifiedStore {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if store := h.unifiedStores[orgID]; store != nil {
		h.intelligenceMu.RUnlock()
		return store
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.unifiedStore
	}
	return nil
}

// SetDiscoveryStore sets the discovery store for the default org.
func (h *AISettingsHandler) SetDiscoveryStore(store *servicediscovery.Store) {
	h.SetDiscoveryStoreForOrg("default", store)
}

// SetDiscoveryStoreForOrg sets the discovery store for deep infrastructure discovery for an org.
func (h *AISettingsHandler) SetDiscoveryStoreForOrg(orgID string, store *servicediscovery.Store) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if store == nil {
		delete(h.discoveryStores, orgID)
	} else {
		h.discoveryStores[orgID] = store
	}
	h.intelligenceMu.Unlock()

	if orgID == "default" {
		h.stateMu.Lock()
		h.discoveryStore = store
		defaultAIService := h.defaultAIService
		h.stateMu.Unlock()
		if defaultAIService != nil {
			defaultAIService.SetDiscoveryStore(store)
		}
	}

	h.aiServicesMu.RLock()
	svc := h.aiServices[orgID]
	h.aiServicesMu.RUnlock()
	if svc != nil {
		svc.SetDiscoveryStore(store)
	}
}

// GetDiscoveryStore returns the discovery store for the default org.
func (h *AISettingsHandler) GetDiscoveryStore() *servicediscovery.Store {
	return h.GetDiscoveryStoreForOrg("default")
}

// GetDiscoveryStoreForOrg returns the discovery store for an org.
func (h *AISettingsHandler) GetDiscoveryStoreForOrg(orgID string) *servicediscovery.Store {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if store := h.discoveryStores[orgID]; store != nil {
		h.intelligenceMu.RUnlock()
		return store
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		h.stateMu.RLock()
		store := h.discoveryStore
		h.stateMu.RUnlock()
		return store
	}
	return nil
}

// SetAlertBridge sets the alert bridge
func (h *AISettingsHandler) SetAlertBridge(bridge *unified.AlertBridge) {
	h.SetAlertBridgeForOrg("default", bridge)
}

// SetAlertBridgeForOrg sets the alert bridge for an org.
func (h *AISettingsHandler) SetAlertBridgeForOrg(orgID string, bridge *unified.AlertBridge) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if bridge == nil {
		delete(h.alertBridges, orgID)
	} else {
		h.alertBridges[orgID] = bridge
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.alertBridge = bridge
	}
}

// GetAlertBridge returns the alert bridge
func (h *AISettingsHandler) GetAlertBridge() *unified.AlertBridge {
	return h.GetAlertBridgeForOrg("default")
}

// GetAlertBridgeForOrg returns the alert bridge for an org.
func (h *AISettingsHandler) GetAlertBridgeForOrg(orgID string) *unified.AlertBridge {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if bridge := h.alertBridges[orgID]; bridge != nil {
		h.intelligenceMu.RUnlock()
		return bridge
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.alertBridge
	}
	return nil
}

// SetTriggerManager sets the event-driven patrol trigger manager
func (h *AISettingsHandler) SetTriggerManager(tm *ai.TriggerManager) {
	h.SetTriggerManagerForOrg("default", tm)
}

// SetTriggerManagerForOrg sets the event-driven patrol trigger manager for an org.
func (h *AISettingsHandler) SetTriggerManagerForOrg(orgID string, tm *ai.TriggerManager) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if tm == nil {
		delete(h.triggerManagers, orgID)
	} else {
		h.triggerManagers[orgID] = tm
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.triggerManager = tm
	}
}

// GetTriggerManager returns the event-driven patrol trigger manager
func (h *AISettingsHandler) GetTriggerManager() *ai.TriggerManager {
	return h.GetTriggerManagerForOrg("default")
}

// GetTriggerManagerForOrg returns the event-driven patrol trigger manager for an org.
func (h *AISettingsHandler) GetTriggerManagerForOrg(orgID string) *ai.TriggerManager {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if tm := h.triggerManagers[orgID]; tm != nil {
		h.intelligenceMu.RUnlock()
		return tm
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.triggerManager
	}
	return nil
}

// SetIncidentCoordinator sets the incident recording coordinator
func (h *AISettingsHandler) SetIncidentCoordinator(coordinator *ai.IncidentCoordinator) {
	h.SetIncidentCoordinatorForOrg("default", coordinator)
}

// SetIncidentCoordinatorForOrg sets the incident recording coordinator for an org.
func (h *AISettingsHandler) SetIncidentCoordinatorForOrg(orgID string, coordinator *ai.IncidentCoordinator) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if coordinator == nil {
		delete(h.incidentCoordinators, orgID)
	} else {
		h.incidentCoordinators[orgID] = coordinator
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.incidentCoordinator = coordinator
	}
}

// GetIncidentCoordinator returns the incident recording coordinator
func (h *AISettingsHandler) GetIncidentCoordinator() *ai.IncidentCoordinator {
	return h.GetIncidentCoordinatorForOrg("default")
}

// GetIncidentCoordinatorForOrg returns the incident recording coordinator for an org.
func (h *AISettingsHandler) GetIncidentCoordinatorForOrg(orgID string) *ai.IncidentCoordinator {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if coordinator := h.incidentCoordinators[orgID]; coordinator != nil {
		h.intelligenceMu.RUnlock()
		return coordinator
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.incidentCoordinator
	}
	return nil
}

// SetIncidentRecorder sets the high-frequency incident recorder
func (h *AISettingsHandler) SetIncidentRecorder(recorder *metrics.IncidentRecorder) {
	h.SetIncidentRecorderForOrg("default", recorder)
}

// SetIncidentRecorderForOrg sets the high-frequency incident recorder for an org.
func (h *AISettingsHandler) SetIncidentRecorderForOrg(orgID string, recorder *metrics.IncidentRecorder) {
	if h == nil {
		return
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.Lock()
	h.ensureIntelligenceMapsLocked()
	if recorder == nil {
		delete(h.incidentRecorders, orgID)
	} else {
		h.incidentRecorders[orgID] = recorder
	}
	h.intelligenceMu.Unlock()
	if orgID == "default" {
		h.incidentRecorder = recorder
	}
}

// GetIncidentRecorder returns the high-frequency incident recorder
func (h *AISettingsHandler) GetIncidentRecorder() *metrics.IncidentRecorder {
	return h.GetIncidentRecorderForOrg("default")
}

// GetIncidentRecorderForOrg returns the high-frequency incident recorder for an org.
func (h *AISettingsHandler) GetIncidentRecorderForOrg(orgID string) *metrics.IncidentRecorder {
	if h == nil {
		return nil
	}
	orgID = normalizeAIIntelligenceOrgID(orgID)
	h.intelligenceMu.RLock()
	if recorder := h.incidentRecorders[orgID]; recorder != nil {
		h.intelligenceMu.RUnlock()
		return recorder
	}
	h.intelligenceMu.RUnlock()
	if orgID == "default" {
		return h.incidentRecorder
	}
	return nil
}

// ListLearningStores returns learning stores keyed by org.
func (h *AISettingsHandler) ListLearningStores() map[string]*learning.LearningStore {
	out := make(map[string]*learning.LearningStore)
	if h == nil {
		return out
	}
	h.intelligenceMu.RLock()
	for orgID, store := range h.learningStores {
		if store != nil {
			out[orgID] = store
		}
	}
	h.intelligenceMu.RUnlock()
	if _, ok := out["default"]; !ok && h.learningStore != nil {
		out["default"] = h.learningStore
	}
	return out
}

// ListAlertBridges returns alert bridges keyed by org for shutdown/cleanup flows.
func (h *AISettingsHandler) ListAlertBridges() map[string]*unified.AlertBridge {
	out := make(map[string]*unified.AlertBridge)
	if h == nil {
		return out
	}
	h.intelligenceMu.RLock()
	for orgID, bridge := range h.alertBridges {
		if bridge != nil {
			out[orgID] = bridge
		}
	}
	h.intelligenceMu.RUnlock()
	if _, ok := out["default"]; !ok && h.alertBridge != nil {
		out["default"] = h.alertBridge
	}
	return out
}

// ListTriggerManagers returns trigger managers keyed by org for shutdown/cleanup flows.
func (h *AISettingsHandler) ListTriggerManagers() map[string]*ai.TriggerManager {
	out := make(map[string]*ai.TriggerManager)
	if h == nil {
		return out
	}
	h.intelligenceMu.RLock()
	for orgID, tm := range h.triggerManagers {
		if tm != nil {
			out[orgID] = tm
		}
	}
	h.intelligenceMu.RUnlock()
	if _, ok := out["default"]; !ok && h.triggerManager != nil {
		out["default"] = h.triggerManager
	}
	return out
}

// ListIncidentCoordinators returns incident coordinators keyed by org.
func (h *AISettingsHandler) ListIncidentCoordinators() map[string]*ai.IncidentCoordinator {
	out := make(map[string]*ai.IncidentCoordinator)
	if h == nil {
		return out
	}
	h.intelligenceMu.RLock()
	for orgID, coordinator := range h.incidentCoordinators {
		if coordinator != nil {
			out[orgID] = coordinator
		}
	}
	h.intelligenceMu.RUnlock()
	if _, ok := out["default"]; !ok && h.incidentCoordinator != nil {
		out["default"] = h.incidentCoordinator
	}
	return out
}

// ListIncidentRecorders returns incident recorders keyed by org.
func (h *AISettingsHandler) ListIncidentRecorders() map[string]*metrics.IncidentRecorder {
	out := make(map[string]*metrics.IncidentRecorder)
	if h == nil {
		return out
	}
	h.intelligenceMu.RLock()
	for orgID, recorder := range h.incidentRecorders {
		if recorder != nil {
			out[orgID] = recorder
		}
	}
	h.intelligenceMu.RUnlock()
	if _, ok := out["default"]; !ok && h.incidentRecorder != nil {
		out["default"] = h.incidentRecorder
	}
	return out
}

// StopPatrol stops the background AI patrol service
func (h *AISettingsHandler) StopPatrol() {
	if h.defaultAIService != nil {
		h.defaultAIService.StopPatrol()
	}
	h.aiServicesMu.RLock()
	services := make([]*ai.Service, 0, len(h.aiServices))
	for _, svc := range h.aiServices {
		if svc != nil {
			services = append(services, svc)
		}
	}
	h.aiServicesMu.RUnlock()
	for _, svc := range services {
		svc.StopPatrol()
	}
}

// StopPatrolForOrg stops patrol for a single org without affecting others.
func (h *AISettingsHandler) StopPatrolForOrg(orgID string) {
	orgID = normalizeAIIntelligenceOrgID(orgID)
	if orgID == "default" {
		if h.defaultAIService != nil {
			h.defaultAIService.StopPatrol()
		}
		return
	}

	h.aiServicesMu.RLock()
	svc := h.aiServices[orgID]
	h.aiServicesMu.RUnlock()
	if svc != nil {
		svc.StopPatrol()
	}
}

// RemoveTenantIntelligence stops and removes org-scoped intelligence components.
func (h *AISettingsHandler) RemoveTenantIntelligence(orgID string) {
	orgID = normalizeAIIntelligenceOrgID(orgID)
	if orgID == "default" {
		return
	}

	var (
		bridge      *unified.AlertBridge
		trigger     *ai.TriggerManager
		coordinator *ai.IncidentCoordinator
		recorder    *metrics.IncidentRecorder
	)

	h.intelligenceMu.Lock()
	delete(h.learningStores, orgID)
	delete(h.forecastServices, orgID)
	delete(h.remediationEngines, orgID)
	delete(h.incidentStores, orgID)
	delete(h.circuitBreakers, orgID)
	delete(h.discoveryStores, orgID)
	bridge = h.alertBridges[orgID]
	trigger = h.triggerManagers[orgID]
	coordinator = h.incidentCoordinators[orgID]
	recorder = h.incidentRecorders[orgID]
	delete(h.unifiedStores, orgID)
	delete(h.alertBridges, orgID)
	delete(h.triggerManagers, orgID)
	delete(h.incidentCoordinators, orgID)
	delete(h.incidentRecorders, orgID)
	delete(h.proxmoxCorrelators, orgID)
	h.intelligenceMu.Unlock()

	if bridge != nil {
		bridge.Stop()
	}
	if trigger != nil {
		trigger.Stop()
	}
	if coordinator != nil {
		coordinator.Stop()
	}
	if recorder != nil {
		recorder.Stop()
	}
}

// GetAlertTriggeredAnalyzer returns the alert-triggered analyzer for wiring into alert callbacks
func (h *AISettingsHandler) GetAlertTriggeredAnalyzer(ctx context.Context) aicontracts.AlertAnalyzer {
	return h.GetAIService(ctx).GetAlertTriggeredAnalyzer()
}

// SetLicenseHandlers sets the license handlers for Pro feature gating
func (h *AISettingsHandler) SetLicenseHandlers(handlers *LicenseHandlers) {
	h.stateMu.Lock()
	h.licenseHandlers = handlers
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	if handlers == nil {
		return
	}
	// Update default-org service with the current license checker.
	// We can try to get it using background context (default tenant).
	if svc, _, err := handlers.getTenantComponents(context.Background()); err == nil {
		if defaultAIService != nil {
			defaultAIService.SetLicenseChecker(svc)
		}
	}
}

// SetOnModelChange sets a callback to be invoked when model settings change
// Used by Router to trigger AI chat service restart
func (h *AISettingsHandler) SetOnModelChange(callback func()) {
	h.onModelChange = callback
}

func shouldRestartAIChat(req AISettingsUpdateRequest) bool {
	return req.Enabled != nil ||
		req.Model != nil ||
		req.ChatModel != nil ||
		req.PatrolModel != nil ||
		req.AutoFixModel != nil ||
		req.AuthMethod != nil ||
		req.AnthropicAPIKey != nil ||
		req.OpenAIAPIKey != nil ||
		req.OpenRouterAPIKey != nil ||
		req.DeepSeekAPIKey != nil ||
		req.GeminiAPIKey != nil ||
		req.OllamaBaseURL != nil ||
		req.OllamaUsername != nil ||
		req.OllamaPassword != nil ||
		req.OpenAIBaseURL != nil ||
		req.ClearAnthropicKey != nil ||
		req.ClearOpenAIKey != nil ||
		req.ClearOpenRouterKey != nil ||
		req.ClearDeepSeekKey != nil ||
		req.ClearGeminiKey != nil ||
		req.ClearOllamaURL != nil ||
		req.ClearOllamaUsername != nil ||
		req.ClearOllamaPassword != nil
}

// SetOnControlSettingsChange sets a callback to be invoked when control settings change
// Used by Router to update MCP tool visibility without restarting AI chat
func (h *AISettingsHandler) SetOnControlSettingsChange(callback func()) {
	h.onControlSettingsChange = callback
}

// SetChatHandler sets the chat handler for investigation orchestration
// This enables the patrol service to spawn chat sessions to investigate findings
func (h *AISettingsHandler) SetChatHandler(chatHandler *AIHandler) {
	h.stateMu.Lock()
	h.chatHandler = chatHandler
	defaultAIService := h.defaultAIService
	h.stateMu.Unlock()
	h.investigationMu.Lock()
	if h.investigationStores == nil {
		h.investigationStores = make(map[string]aicontracts.InvestigationStore)
	}
	h.investigationMu.Unlock()

	// Wire up orchestrator for the default-org service.
	// Note: This usually fails because chat service isn't started yet.
	// The orchestrator will be wired via WireOrchestratorAfterChatStart() instead.
	if defaultAIService != nil && isAIInvestigationEnabled() {
		h.setupInvestigationOrchestrator("default", defaultAIService)
	}

	// Wire up orchestrator for any existing services
	if isAIInvestigationEnabled() {
		h.aiServicesMu.RLock()
		for orgID, svc := range h.aiServices {
			h.setupInvestigationOrchestrator(orgID, svc)
		}
		h.aiServicesMu.RUnlock()
	}
}

// WireOrchestratorAfterChatStart is called after the chat service is started
// to wire up the investigation orchestrator. This must be called after aiHandler.Start()
// because the orchestrator needs an active chat service.
func (h *AISettingsHandler) WireOrchestratorAfterChatStart() {
	if !isAIInvestigationEnabled() {
		log.Info().Msg("WireOrchestratorAfterChatStart skipped (requires Pulse Pro)")
		return
	}

	h.stateMu.RLock()
	hasChatHandler := h.chatHandler != nil
	defaultAIService := h.defaultAIService
	h.stateMu.RUnlock()
	if !hasChatHandler {
		log.Warn().Msg("WireOrchestratorAfterChatStart called but chatHandler is nil")
		return
	}

	// Wire up orchestrator for the default-org service.
	if defaultAIService != nil {
		h.setupInvestigationOrchestrator("default", defaultAIService)
	}

	// Wire up orchestrator for any existing services
	h.aiServicesMu.RLock()
	for orgID, svc := range h.aiServices {
		h.setupInvestigationOrchestrator(orgID, svc)
	}
	h.aiServicesMu.RUnlock()
}

// setupInvestigationOrchestrator creates and wires the investigation orchestrator for an AI service
func (h *AISettingsHandler) setupInvestigationOrchestrator(orgID string, svc *ai.Service) {
	// Check factory exists first — if nil, this is OSS (no orchestrator available).
	// Clear any stale orchestrator from a prior setup so the patrol service
	// doesn't keep using a removed enterprise component.
	factory := getCreateInvestigationOrchestrator()
	if factory == nil {
		if patrol := svc.GetPatrolService(); patrol != nil {
			patrol.SetInvestigationOrchestrator(nil)
		}
		log.Debug().Str("orgID", orgID).Msg("Investigation orchestrator factory not registered (requires Pulse Pro)")
		return
	}

	h.stateMu.RLock()
	chatHandler := h.chatHandler
	h.stateMu.RUnlock()
	if chatHandler == nil {
		log.Debug().Str("orgID", orgID).Msg("Chat handler not set, skipping orchestrator setup")
		return
	}

	patrol := svc.GetPatrolService()
	if patrol == nil {
		log.Debug().Str("orgID", orgID).Msg("Patrol service not available, skipping orchestrator setup")
		return
	}

	// Get or create investigation store for this org
	h.investigationMu.Lock()
	store, exists := h.investigationStores[orgID]
	if !exists {
		// Get data directory from persistence
		var dataDir string
		mtPersistence, _, _, defaultPersistence, _, _ := h.stateRefs()
		if defaultPersistence != nil && orgID == "default" {
			dataDir = defaultPersistence.DataDir()
		} else if mtPersistence != nil {
			if p, err := mtPersistence.GetPersistence(orgID); err == nil {
				dataDir = p.DataDir()
			}
		}
		if storeFactory := getCreateInvestigationStore(); storeFactory != nil {
			store = storeFactory(dataDir)
		}
		if store == nil {
			log.Warn().Str("orgID", orgID).Msg("Investigation store not available (requires Pulse Pro)")
			h.investigationMu.Unlock()
			return
		}
		if err := store.LoadFromDisk(); err != nil {
			log.Warn().Err(err).Str("orgID", orgID).Msg("Failed to load investigation store")
		}
		h.investigationStores[orgID] = store
	}
	h.investigationMu.Unlock()

	// Get chat service for this org using org-scoped context
	ctx := context.WithValue(context.Background(), OrgIDContextKey, orgID)
	chatSvc := chatHandler.GetService(ctx)
	if chatSvc == nil {
		log.Warn().Str("orgID", orgID).Msg("Chat service not available for orchestrator")
		return
	}

	// Create chat adapter - need to cast to *chat.Service
	chatService, ok := chatSvc.(*chat.Service)
	if !ok {
		log.Warn().Str("orgID", orgID).Msg("Chat service is not *chat.Service, cannot create adapter")
		return
	}

	// Mirror default-org router wiring for per-org services so patrol/investigation
	// executions always use the chat backend path with mid-run budget enforcement.
	svc.SetChatService(&chatServiceAdapter{svc: chatService})
	chatService.SetBudgetChecker(func() error {
		return svc.CheckBudget("patrol")
	})

	// Build local adapters that implement aicontracts.Orchestrator* interfaces
	chatAdapter := &orchestratorChatAdapter{svc: chatService}

	// Create findings store adapter
	findingsStore := patrol.GetFindings()
	if findingsStore == nil {
		log.Warn().Str("orgID", orgID).Msg("Findings store not available for orchestrator")
		return
	}
	findingsAdapter := &orchestratorFindingsAdapter{store: &findingsStoreWrapper{store: findingsStore}}

	// Create approval adapter from the global approval store
	var approvalAdapter aicontracts.OrchestratorApprovalStore
	if approvalStoreInst := approval.GetStore(); approvalStoreInst != nil {
		approvalAdapter = &orchestratorApprovalAdapter{store: approvalStoreInst, orgID: approval.NormalizeOrgID(orgID)}
	}

	// Get config for investigation settings
	cfg := svc.GetConfig()
	invConfig := aicontracts.DefaultInvestigationConfig()
	if cfg != nil {
		invConfig.MaxTurns = cfg.GetPatrolInvestigationBudget()
		invConfig.Timeout = cfg.GetPatrolInvestigationTimeout()
	}

	// Wire up discovery context to the knowledge store for infrastructure context
	var infraContext aicontracts.OrchestratorInfraContextProvider
	if knowledgeStore := svc.GetKnowledgeStore(); knowledgeStore != nil {
		if discoveryService := svc.GetDiscoveryService(); discoveryService != nil {
			knowledgeStore.SetDiscoveryContextProvider(func() string {
				discoveries, err := discoveryService.ListDiscoveries()
				if err != nil || len(discoveries) == 0 {
					return ""
				}
				return servicediscovery.FormatForAIContext(discoveries)
			})
			knowledgeStore.SetDiscoveryContextProviderForResources(func(resourceIDs []string) string {
				if len(resourceIDs) == 0 {
					return ""
				}
				discoveries, err := discoveryService.ListDiscoveries()
				if err != nil || len(discoveries) == 0 {
					return ""
				}
				filtered := servicediscovery.FilterDiscoveriesByResourceIDs(discoveries, resourceIDs)
				return servicediscovery.FormatForAIContext(filtered)
			})
		}
		infraContext = knowledgeStore
	}

	// Build deps struct and call factory
	deps := aicontracts.OrchestratorDeps{
		ChatService:   chatAdapter,
		CmdExecutor:   chatAdapter, // ChatServiceAdapter implements both interfaces
		Store:         store,
		FindingsStore: findingsAdapter,
		ApprovalStore: approvalAdapter,
		Config:        invConfig,
		InfraContext:  infraContext,
		Autonomy:      &autonomyLevelProviderAdapter{svc: svc},
		FixVerifier:   &patrolFixVerifierAdapter{patrol: patrol},
		License:       &licenseCheckerForOrchestrator{svc: svc},
		Metrics:       &patrolMetricsCallbackAdapter{},
	}

	orchestrator := factory(deps)
	if orchestrator == nil {
		log.Warn().Str("orgID", orgID).Msg("Investigation orchestrator factory returned nil")
		patrol.SetInvestigationOrchestrator(nil)
		return
	}

	// Set directly on patrol service — factory returns the interface
	patrol.SetInvestigationOrchestrator(orchestrator)

	log.Info().Str("orgID", orgID).Msg("Investigation orchestrator configured for patrol service")
}

// ---------------------------------------------------------------------------
// Local adapters — bridge between OSS singletons and aicontracts interfaces
// ---------------------------------------------------------------------------

// orchestratorChatAdapter wraps *chat.Service to implement
// aicontracts.OrchestratorChatService and OrchestratorCommandExecutor.
type orchestratorChatAdapter struct {
	svc *chat.Service
}

func (a *orchestratorChatAdapter) CreateSession(ctx context.Context) (*aicontracts.OrchestratorChatSession, error) {
	session, err := a.svc.CreateSession(ctx)
	if err != nil {
		return nil, err
	}
	return &aicontracts.OrchestratorChatSession{ID: session.ID}, nil
}

func (a *orchestratorChatAdapter) ExecuteStream(ctx context.Context, req aicontracts.OrchestratorExecuteRequest, callback aicontracts.OrchestratorStreamCallback) error {
	if a.svc == nil {
		return fmt.Errorf("chat service is nil")
	}
	if !a.svc.IsRunning() {
		return fmt.Errorf("chat service is not running")
	}
	chatReq := chat.ExecuteRequest{
		Prompt:         req.Prompt,
		SessionID:      req.SessionID,
		MaxTurns:       req.MaxTurns,
		AutonomousMode: req.AutonomousMode,
	}
	return a.svc.ExecuteStream(ctx, chatReq, func(event chat.StreamEvent) {
		callback(aicontracts.OrchestratorStreamEvent{
			Type: event.Type,
			Data: event.Data,
		})
	})
}

func (a *orchestratorChatAdapter) GetMessages(ctx context.Context, sessionID string) ([]aicontracts.OrchestratorMessage, error) {
	chatMessages, err := a.svc.GetMessages(ctx, sessionID)
	if err != nil {
		return nil, err
	}
	messages := make([]aicontracts.OrchestratorMessage, len(chatMessages))
	for i, msg := range chatMessages {
		m := aicontracts.OrchestratorMessage{
			ID:               msg.ID,
			Role:             msg.Role,
			Content:          msg.Content,
			ReasoningContent: msg.ReasoningContent,
			Timestamp:        msg.Timestamp,
		}
		for _, tc := range msg.ToolCalls {
			m.ToolCalls = append(m.ToolCalls, aicontracts.OrchestratorToolCallInfo{
				ID:    tc.ID,
				Name:  tc.Name,
				Input: tc.Input,
			})
		}
		if msg.ToolResult != nil {
			m.ToolResult = &aicontracts.OrchestratorToolResultInfo{
				ToolUseID: msg.ToolResult.ToolUseID,
				Content:   msg.ToolResult.Content,
				IsError:   msg.ToolResult.IsError,
			}
		}
		messages[i] = m.NormalizeCollections()
	}
	return messages, nil
}

func (a *orchestratorChatAdapter) DeleteSession(ctx context.Context, sessionID string) error {
	return a.svc.DeleteSession(ctx, sessionID)
}

func (a *orchestratorChatAdapter) ListAvailableTools(ctx context.Context, prompt string) []string {
	if a.svc == nil {
		return nil
	}
	return a.svc.ListAvailableTools(ctx, prompt)
}

func (a *orchestratorChatAdapter) SetAutonomousMode(enabled bool) {
	if a.svc != nil {
		a.svc.SetAutonomousMode(enabled)
	}
}

func (a *orchestratorChatAdapter) ExecuteCommand(ctx context.Context, command, targetHost string) (string, int, error) {
	if a.svc == nil {
		return "", -1, fmt.Errorf("chat service not available")
	}
	return a.svc.ExecuteCommand(ctx, command, targetHost)
}

// orchestratorFindingsAdapter wraps findingsStoreWrapper to implement
// aicontracts.OrchestratorFindingsStore.
type orchestratorFindingsAdapter struct {
	store *findingsStoreWrapper
}

func (a *orchestratorFindingsAdapter) Get(id string) *aicontracts.Finding {
	if a.store == nil {
		return nil
	}
	f := a.store.Get(id)
	if f == nil {
		return nil
	}
	return &aicontracts.Finding{
		ID:                     f.GetID(),
		Severity:               f.GetSeverity(),
		Category:               f.GetCategory(),
		ResourceID:             f.GetResourceID(),
		ResourceName:           f.GetResourceName(),
		ResourceType:           f.GetResourceType(),
		Title:                  f.GetTitle(),
		Description:            f.GetDescription(),
		Recommendation:         f.GetRecommendation(),
		Evidence:               f.GetEvidence(),
		InvestigationSessionID: f.GetInvestigationSessionID(),
		InvestigationStatus:    f.GetInvestigationStatus(),
		InvestigationOutcome:   f.GetInvestigationOutcome(),
		LastInvestigatedAt:     f.GetLastInvestigatedAt(),
		InvestigationAttempts:  f.GetInvestigationAttempts(),
	}
}

func (a *orchestratorFindingsAdapter) Update(f *aicontracts.Finding) bool {
	if a.store == nil || f == nil {
		return false
	}
	return a.store.UpdateInvestigation(
		f.ID,
		f.InvestigationSessionID,
		f.InvestigationStatus,
		f.InvestigationOutcome,
		f.LastInvestigatedAt,
		f.InvestigationAttempts,
	)
}

// orchestratorApprovalAdapter wraps *approval.Store to implement
// aicontracts.OrchestratorApprovalStore.
type orchestratorApprovalAdapter struct {
	store *approval.Store
	orgID string
}

func (a *orchestratorApprovalAdapter) Create(appr *aicontracts.OrchestratorApproval) error {
	if a.store == nil {
		return nil
	}
	riskLevel := approval.RiskLow
	switch appr.RiskLevel {
	case "low":
		riskLevel = approval.RiskLow
	case "medium":
		riskLevel = approval.RiskMedium
	case "high", "critical":
		riskLevel = approval.RiskHigh
	}
	req := &approval.ApprovalRequest{
		OrgID:      a.orgID,
		ID:         appr.ID,
		ToolID:     "investigation_fix",
		Command:    appr.Command,
		TargetType: "investigation",
		TargetID:   appr.FindingID,
		TargetName: strings.TrimSpace(appr.TargetHost),
		Context:    "Automated fix from patrol investigation: " + appr.Description,
		RiskLevel:  riskLevel,
	}
	if req.TargetName == "" {
		req.TargetName = appr.Description
	}
	return a.store.CreateApproval(req)
}

// patrolFixVerifierAdapter wraps *ai.PatrolService to implement
// aicontracts.OrchestratorFixVerifier.
type patrolFixVerifierAdapter struct {
	patrol *ai.PatrolService
}

func (v *patrolFixVerifierAdapter) VerifyFixResolved(ctx context.Context, finding *aicontracts.Finding) (bool, error) {
	return v.patrol.VerifyFixResolved(ctx, finding.ResourceID, finding.ResourceType, finding.Key, finding.ID)
}

// patrolMetricsCallbackAdapter implements aicontracts.OrchestratorMetricsCallback
// by delegating to the global PatrolMetrics singleton.
type patrolMetricsCallbackAdapter struct{}

func (c *patrolMetricsCallbackAdapter) RecordInvestigationOutcome(outcome string) {
	ai.GetPatrolMetrics().RecordInvestigationOutcome(outcome)
}

func (c *patrolMetricsCallbackAdapter) RecordFixVerification(result string) {
	ai.GetPatrolMetrics().RecordFixVerification(result)
}

// licenseCheckerForOrchestrator adapts *ai.Service to aicontracts.OrchestratorLicenseChecker
type licenseCheckerForOrchestrator struct {
	svc *ai.Service
}

func (l *licenseCheckerForOrchestrator) HasFeature(feature string) bool {
	return l.svc.HasLicenseFeature(feature)
}

// findingsStoreWrapper wraps *ai.FindingsStore to implement aicontracts.OrchestratorAIFindingsStore
type findingsStoreWrapper struct {
	store *ai.FindingsStore
}

func (w *findingsStoreWrapper) Get(id string) aicontracts.OrchestratorAIFinding {
	if w.store == nil {
		return nil
	}
	f := w.store.Get(id)
	if f == nil {
		return nil
	}
	return f
}

func (w *findingsStoreWrapper) UpdateInvestigation(id, sessionID, status, outcome string, lastInvestigatedAt *time.Time, attempts int) bool {
	if w.store == nil {
		return false
	}
	return w.store.UpdateInvestigation(id, sessionID, status, outcome, lastInvestigatedAt, attempts)
}

// autonomyLevelProviderAdapter provides current autonomy level from config for re-checking before fix execution
type autonomyLevelProviderAdapter struct {
	svc *ai.Service
}

func (a *autonomyLevelProviderAdapter) GetCurrentAutonomyLevel() string {
	if a.svc == nil {
		return config.PatrolAutonomyMonitor
	}
	return a.svc.GetEffectivePatrolAutonomyLevel()
}

func (a *autonomyLevelProviderAdapter) IsFullModeUnlocked() bool {
	if a.svc == nil {
		return false
	}
	cfg := a.svc.GetConfig()
	if cfg == nil {
		return false
	}
	return cfg.PatrolFullModeUnlocked
}

// AISettingsResponse is returned by GET /api/settings/ai
// API keys are masked for security
type AISettingsResponse struct {
	Enabled       bool   `json:"enabled"`
	Model         string `json:"model"`
	ChatModel     string `json:"chat_model,omitempty"`     // Model for interactive chat (empty = use default)
	PatrolModel   string `json:"patrol_model,omitempty"`   // Model for patrol (empty = use default)
	AutoFixModel  string `json:"auto_fix_model,omitempty"` // Model for auto-fix (empty = use patrol model)
	Configured    bool   `json:"configured"`               // true if AI is ready to use
	CustomContext string `json:"custom_context"`           // user-provided infrastructure context
	// OAuth fields for Claude Pro/Max subscription authentication
	AuthMethod     string `json:"auth_method"`     // "api_key" or "oauth"
	OAuthConnected bool   `json:"oauth_connected"` // true if OAuth tokens are configured
	// Patrol settings for token efficiency
	PatrolIntervalMinutes        int                   `json:"patrol_interval_minutes"`         // Patrol interval in minutes (0 = disabled)
	PatrolEnabled                bool                  `json:"patrol_enabled"`                  // true if patrol is enabled
	PatrolAutoFix                bool                  `json:"patrol_auto_fix"`                 // true if patrol can auto-fix issues
	AlertTriggeredAnalysis       bool                  `json:"alert_triggered_analysis"`        // true if AI analyzes when alerts fire
	PatrolEventTriggersEnabled   bool                  `json:"patrol_event_triggers_enabled"`   // Legacy aggregate flag; true when any scoped Patrol trigger source is enabled
	PatrolAlertTriggersEnabled   bool                  `json:"patrol_alert_triggers_enabled"`   // true if alert-driven scoped Patrol triggers are enabled
	PatrolAnomalyTriggersEnabled bool                  `json:"patrol_anomaly_triggers_enabled"` // true if anomaly-driven scoped Patrol triggers are enabled
	UseProactiveThresholds       bool                  `json:"use_proactive_thresholds"`        // true if patrol warns before thresholds (false = use exact thresholds)
	AvailableModels              []providers.ModelInfo `json:"available_models"`                // List of models for current provider
	// Multi-provider credentials - shows which providers are configured
	AnthropicConfigured  bool     `json:"anthropic_configured"`      // true if Anthropic API key or OAuth is set
	OpenAIConfigured     bool     `json:"openai_configured"`         // true if OpenAI API key is set
	OpenRouterConfigured bool     `json:"openrouter_configured"`     // true if OpenRouter API key is set
	DeepSeekConfigured   bool     `json:"deepseek_configured"`       // true if DeepSeek API key is set
	GeminiConfigured     bool     `json:"gemini_configured"`         // true if Gemini API key is set
	OllamaConfigured     bool     `json:"ollama_configured"`         // true (always available for attempt)
	OllamaBaseURL        string   `json:"ollama_base_url"`           // Ollama server URL
	OllamaUsername       string   `json:"ollama_username,omitempty"` // Optional Basic Auth username for Ollama
	OllamaPasswordSet    bool     `json:"ollama_password_set"`       // true if an Ollama password is stored
	OpenAIBaseURL        string   `json:"openai_base_url,omitempty"` // Custom OpenAI base URL
	ConfiguredProviders  []string `json:"configured_providers"`      // List of provider names with credentials
	// Cost controls
	CostBudgetUSD30d float64 `json:"cost_budget_usd_30d,omitempty"`
	// Request timeout (seconds) - for slow hardware running local models
	RequestTimeoutSeconds int `json:"request_timeout_seconds,omitempty"`
	// Infrastructure control settings
	ControlLevel    string   `json:"control_level"`    // "read_only", "controlled", "autonomous"
	ProtectedGuests []string `json:"protected_guests"` // VMIDs/names that AI cannot control
	// Discovery settings
	DiscoveryEnabled       bool `json:"discovery_enabled"`                  // true if discovery is enabled
	DiscoveryIntervalHours int  `json:"discovery_interval_hours,omitempty"` // Hours between auto-scans (0 = manual only)
	// Quickstart credits
	QuickstartCreditsTotal     int    `json:"quickstart_credits_total"`            // Total credits granted (25)
	QuickstartCreditsUsed      int    `json:"quickstart_credits_used"`             // Credits consumed
	QuickstartCreditsRemaining int    `json:"quickstart_credits_remaining"`        // Credits remaining
	QuickstartCreditsAvailable bool   `json:"quickstart_credits_available"`        // true if quickstart credits are usable
	UsingQuickstart            bool   `json:"using_quickstart"`                    // true if currently using quickstart provider
	QuickstartBlockedReason    string `json:"quickstart_blocked_reason,omitempty"` // canonical reason when quickstart is not currently usable
}

func EmptyAISettingsResponse() AISettingsResponse {
	return AISettingsResponse{}.NormalizeCollections()
}

func (r AISettingsResponse) NormalizeCollections() AISettingsResponse {
	if r.AvailableModels == nil {
		r.AvailableModels = []providers.ModelInfo{}
	}
	if r.ConfiguredProviders == nil {
		r.ConfiguredProviders = []string{}
	}
	if r.ProtectedGuests == nil {
		r.ProtectedGuests = []string{}
	}
	return r
}

// AISettingsUpdateRequest is the request body for PUT /api/settings/ai
type AISettingsUpdateRequest struct {
	Enabled       *bool   `json:"enabled,omitempty"`
	Model         *string `json:"model,omitempty"`
	ChatModel     *string `json:"chat_model,omitempty"`     // Model for interactive chat
	PatrolModel   *string `json:"patrol_model,omitempty"`   // Model for background patrol
	AutoFixModel  *string `json:"auto_fix_model,omitempty"` // Model for auto-fix remediation
	CustomContext *string `json:"custom_context,omitempty"` // user-provided infrastructure context
	AuthMethod    *string `json:"auth_method,omitempty"`    // "api_key" or "oauth"
	// Patrol settings for token efficiency
	PatrolIntervalMinutes        *int  `json:"patrol_interval_minutes,omitempty"`         // Custom interval in minutes (0 = disabled, minimum 10)
	PatrolEnabled                *bool `json:"patrol_enabled,omitempty"`                  // true if patrol is enabled
	PatrolAutoFix                *bool `json:"patrol_auto_fix,omitempty"`                 // true if patrol can auto-fix issues
	AlertTriggeredAnalysis       *bool `json:"alert_triggered_analysis,omitempty"`        // true if AI analyzes when alerts fire
	PatrolEventTriggersEnabled   *bool `json:"patrol_event_triggers_enabled,omitempty"`   // Legacy aggregate update; applies to both scoped Patrol trigger sources
	PatrolAlertTriggersEnabled   *bool `json:"patrol_alert_triggers_enabled,omitempty"`   // true if alert-driven scoped Patrol triggers are enabled
	PatrolAnomalyTriggersEnabled *bool `json:"patrol_anomaly_triggers_enabled,omitempty"` // true if anomaly-driven scoped Patrol triggers are enabled
	UseProactiveThresholds       *bool `json:"use_proactive_thresholds,omitempty"`        // true if patrol warns before thresholds (default: false = exact thresholds)
	// Multi-provider credentials
	AnthropicAPIKey  *string `json:"anthropic_api_key,omitempty"`  // Set Anthropic API key
	OpenAIAPIKey     *string `json:"openai_api_key,omitempty"`     // Set OpenAI API key
	OpenRouterAPIKey *string `json:"openrouter_api_key,omitempty"` // Set OpenRouter API key
	DeepSeekAPIKey   *string `json:"deepseek_api_key,omitempty"`   // Set DeepSeek API key
	GeminiAPIKey     *string `json:"gemini_api_key,omitempty"`     // Set Gemini API key
	OllamaBaseURL    *string `json:"ollama_base_url,omitempty"`    // Set Ollama server URL
	OllamaUsername   *string `json:"ollama_username,omitempty"`    // Set Ollama Basic Auth username
	OllamaPassword   *string `json:"ollama_password,omitempty"`    // Set Ollama Basic Auth password
	OpenAIBaseURL    *string `json:"openai_base_url,omitempty"`    // Set custom OpenAI base URL
	// Clear flags for removing credentials
	ClearAnthropicKey   *bool `json:"clear_anthropic_key,omitempty"`   // Clear Anthropic API key
	ClearOpenAIKey      *bool `json:"clear_openai_key,omitempty"`      // Clear OpenAI API key
	ClearOpenRouterKey  *bool `json:"clear_openrouter_key,omitempty"`  // Clear OpenRouter API key
	ClearDeepSeekKey    *bool `json:"clear_deepseek_key,omitempty"`    // Clear DeepSeek API key
	ClearGeminiKey      *bool `json:"clear_gemini_key,omitempty"`      // Clear Gemini API key
	ClearOllamaURL      *bool `json:"clear_ollama_url,omitempty"`      // Clear Ollama URL
	ClearOllamaUsername *bool `json:"clear_ollama_username,omitempty"` // Clear Ollama Basic Auth username
	ClearOllamaPassword *bool `json:"clear_ollama_password,omitempty"` // Clear Ollama Basic Auth password
	// Cost controls
	CostBudgetUSD30d *float64 `json:"cost_budget_usd_30d,omitempty"`
	// Request timeout (seconds) - for slow hardware running local models
	RequestTimeoutSeconds *int `json:"request_timeout_seconds,omitempty"`
	// Infrastructure control settings
	ControlLevel    *string  `json:"control_level,omitempty"`    // "read_only", "controlled", "autonomous"
	ProtectedGuests []string `json:"protected_guests,omitempty"` // VMIDs/names that AI cannot control (nil = don't update, empty = clear)
	// Discovery settings
	DiscoveryEnabled       *bool `json:"discovery_enabled,omitempty"`        // Enable discovery
	DiscoveryIntervalHours *int  `json:"discovery_interval_hours,omitempty"` // Hours between auto-scans (0 = manual only)
}

// populateQuickstartFields fills quickstart credit info on an AISettingsResponse.
func (h *AISettingsHandler) populateQuickstartFields(ctx context.Context, resp *AISettingsResponse) {
	aiSvc := h.GetAIService(ctx)
	if aiSvc == nil {
		return
	}
	qsMgr := aiSvc.GetQuickstartCredits()
	if qsMgr == nil {
		return
	}
	var bootstrapErr error
	if err := qsMgr.EnsureBootstrap(ctx); err != nil {
		bootstrapErr = err
		log.Debug().Err(err).Msg("Quickstart bootstrap unavailable while populating AI settings")
	}
	resp.QuickstartCreditsTotal = qsMgr.CreditsTotal()
	remaining := qsMgr.CreditsRemaining()
	resp.QuickstartCreditsRemaining = remaining
	if resp.QuickstartCreditsTotal > remaining {
		resp.QuickstartCreditsUsed = resp.QuickstartCreditsTotal - remaining
	}
	resp.QuickstartCreditsAvailable = qsMgr.HasCredits()
	resp.UsingQuickstart = aiSvc.IsUsingQuickstart()
	if len(resp.ConfiguredProviders) > 0 && !resp.UsingQuickstart {
		resp.QuickstartBlockedReason = ""
		return
	}
	switch {
	case resp.QuickstartCreditsAvailable:
		resp.QuickstartBlockedReason = ""
	case resp.QuickstartCreditsTotal > 0 && remaining <= 0:
		resp.QuickstartBlockedReason = ai.QuickstartCreditsExhaustedReason()
	case bootstrapErr != nil:
		resp.QuickstartBlockedReason = strings.TrimSpace(ai.QuickstartBlockedReasonForError(bootstrapErr))
	default:
		resp.QuickstartBlockedReason = ""
	}
}

// AssistantEnabled reports whether the Pulse Assistant affordance should be
// shown in the authenticated shell without forcing the browser to probe the
// full AI settings API on every route bootstrap.
func (h *AISettingsHandler) AssistantEnabled(ctx context.Context) bool {
	if h == nil {
		return false
	}

	settings, err := h.loadAIConfig(ctx)
	if err != nil {
		return false
	}
	if settings == nil {
		settings = config.NewDefaultAIConfig()
	}

	enabled := settings.Enabled || mockmode.IsEnabled()
	if !enabled {
		return false
	}

	if settings.IsConfigured() || mockmode.IsEnabled() {
		return true
	}

	response := AISettingsResponse{
		ConfiguredProviders: settings.GetConfiguredProviders(),
	}.NormalizeCollections()
	h.populateQuickstartFields(ctx, &response)
	return response.QuickstartCreditsAvailable
}

func aiSettingsRequireModelResolution(settings *config.AIConfig) bool {
	if settings == nil || !settings.IsConfigured() {
		return false
	}
	model := strings.TrimSpace(settings.GetModel())
	if model == "" {
		return true
	}
	providerName, _ := config.ParseModelString(model)
	if providerName == "" || providerName == config.AIProviderQuickstart {
		return false
	}
	return !settings.HasProvider(providerName)
}

// HandleGetAISettings returns the current AI settings (GET /api/settings/ai)
func (h *AISettingsHandler) HandleGetAISettings(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}
	if !ensureSettingsReadScope(h.getConfig(r.Context()), w, r) {
		return
	}

	ctx := r.Context()
	settings, err := h.loadAIConfig(ctx)
	if err != nil {
		log.Error().Err(err).Msg("Failed to load Pulse Assistant settings")
		http.Error(w, "Failed to load Pulse Assistant settings", http.StatusInternalServerError)
		return
	}

	if settings == nil {
		settings = config.NewDefaultAIConfig()
	}
	settings.NormalizeQuickstartModelAliases()
	if aiSettingsRequireModelResolution(settings) {
		if resolvedModel, resolveErr := ai.ResolveConfiguredModel(ctx, settings); resolveErr == nil {
			settings.Model = resolvedModel
		}
	}

	// Determine auth method string
	authMethod := string(settings.AuthMethod)
	if authMethod == "" {
		authMethod = string(config.AuthMethodAPIKey)
	}

	// Determine if running in demo mode
	isDemo := mockmode.IsEnabled()
	triggerSettings := settings.GetPatrolEventTriggerSettings()

	response := AISettingsResponse{
		Enabled:        settings.Enabled || isDemo,
		Model:          settings.GetModel(),
		ChatModel:      config.NormalizeQuickstartModelString(settings.ChatModel),
		PatrolModel:    config.NormalizeQuickstartModelString(settings.PatrolModel),
		AutoFixModel:   config.NormalizeQuickstartModelString(settings.AutoFixModel),
		Configured:     settings.IsConfigured() || isDemo,
		CustomContext:  settings.CustomContext,
		AuthMethod:     authMethod,
		OAuthConnected: settings.OAuthAccessToken != "",
		// Patrol settings
		PatrolIntervalMinutes:        settings.PatrolIntervalMinutes,
		PatrolEnabled:                settings.PatrolEnabled,
		PatrolAutoFix:                settings.PatrolAutoFix,
		AlertTriggeredAnalysis:       settings.AlertTriggeredAnalysis,
		PatrolEventTriggersEnabled:   triggerSettings.AlertTriggersEnabled || triggerSettings.AnomalyTriggersEnabled,
		PatrolAlertTriggersEnabled:   triggerSettings.AlertTriggersEnabled,
		PatrolAnomalyTriggersEnabled: triggerSettings.AnomalyTriggersEnabled,
		UseProactiveThresholds:       settings.UseProactiveThresholds,
		AvailableModels:              nil, // Now populated via /api/ai/models endpoint
		// Multi-provider configuration
		AnthropicConfigured:    settings.HasProvider(config.AIProviderAnthropic),
		OpenAIConfigured:       settings.HasProvider(config.AIProviderOpenAI),
		OpenRouterConfigured:   settings.HasProvider(config.AIProviderOpenRouter),
		DeepSeekConfigured:     settings.HasProvider(config.AIProviderDeepSeek),
		GeminiConfigured:       settings.HasProvider(config.AIProviderGemini),
		OllamaConfigured:       settings.HasProvider(config.AIProviderOllama),
		OllamaBaseURL:          settings.GetBaseURLForProvider(config.AIProviderOllama),
		OllamaUsername:         settings.OllamaUsername,
		OllamaPasswordSet:      settings.OllamaPassword != "",
		OpenAIBaseURL:          settings.OpenAIBaseURL,
		ConfiguredProviders:    settings.GetConfiguredProviders(),
		CostBudgetUSD30d:       settings.CostBudgetUSD30d,
		RequestTimeoutSeconds:  settings.RequestTimeoutSeconds,
		ControlLevel:           settings.GetControlLevel(),
		ProtectedGuests:        settings.GetProtectedGuests(),
		DiscoveryEnabled:       settings.IsDiscoveryEnabled(),
		DiscoveryIntervalHours: settings.DiscoveryIntervalHours,
	}.NormalizeCollections()

	// Populate quickstart credit info
	h.populateQuickstartFields(ctx, &response)

	// If quickstart credits are available, mark as configured even without BYOK
	if response.QuickstartCreditsAvailable && !response.Configured {
		response.Configured = true
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write AI settings response")
	}
}

// HandleUpdateAISettings updates AI settings (PUT /api/settings/ai)
func (h *AISettingsHandler) HandleUpdateAISettings(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPut && r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require admin authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	// Check proxy auth admin status if applicable
	if h.getConfig(r.Context()).ProxyAuthSecret != "" {
		if valid, username, isAdmin := CheckProxyAuth(h.getConfig(r.Context()), r); valid && !isAdmin {
			log.Warn().
				Str("ip", r.RemoteAddr).
				Str("path", r.URL.Path).
				Str("method", r.Method).
				Str("username", username).
				Msg("Non-admin user attempted to update AI settings")
			w.Header().Set("Content-Type", "application/json")
			w.WriteHeader(http.StatusForbidden)
			_ = json.NewEncoder(w).Encode(map[string]string{"error": "Admin privileges required"})
			return
		}
	}
	if !ensureSettingsWriteScope(h.getConfig(r.Context()), w, r) {
		return
	}

	// Load existing settings
	settings, err := h.loadAIConfig(r.Context())
	if err != nil {
		log.Error().Err(err).Msg("Failed to load existing AI settings")
		settings = config.NewDefaultAIConfig()
	}
	if settings == nil {
		settings = config.NewDefaultAIConfig()
	}

	// Parse request
	r.Body = http.MaxBytesReader(w, r.Body, 16*1024)
	var req AISettingsUpdateRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	// Validate and apply updates
	if req.Model != nil {
		settings.Model = strings.TrimSpace(*req.Model)
	}

	if req.ChatModel != nil {
		settings.ChatModel = strings.TrimSpace(*req.ChatModel)
	}

	if req.PatrolModel != nil {
		settings.PatrolModel = strings.TrimSpace(*req.PatrolModel)
	}

	if req.AutoFixModel != nil {
		settings.AutoFixModel = strings.TrimSpace(*req.AutoFixModel)
	}

	if req.PatrolAutoFix != nil {
		// Auto-fix requires Pro license with ai_autofix feature
		if *req.PatrolAutoFix && !h.GetAIService(r.Context()).HasLicenseFeature(ai.FeatureAIAutoFix) {
			WriteLicenseRequired(w, ai.FeatureAIAutoFix, "Pulse Patrol Auto-Fix requires Pulse Pro")
			return
		}
		settings.PatrolAutoFix = *req.PatrolAutoFix
	}

	if req.UseProactiveThresholds != nil {
		settings.UseProactiveThresholds = *req.UseProactiveThresholds
	}

	if req.CustomContext != nil {
		settings.CustomContext = strings.TrimSpace(*req.CustomContext)
	}

	// Handle multi-provider credentials FIRST - before enabled check
	// This allows the setup flow to send API key + enabled:true together
	// Clear flags take priority over setting new values
	if req.ClearAnthropicKey != nil && *req.ClearAnthropicKey {
		settings.AnthropicAPIKey = ""
	} else if req.AnthropicAPIKey != nil {
		settings.AnthropicAPIKey = strings.TrimSpace(*req.AnthropicAPIKey)
	}
	if req.ClearOpenAIKey != nil && *req.ClearOpenAIKey {
		settings.OpenAIAPIKey = ""
	} else if req.OpenAIAPIKey != nil {
		settings.OpenAIAPIKey = strings.TrimSpace(*req.OpenAIAPIKey)
	}
	if req.ClearOpenRouterKey != nil && *req.ClearOpenRouterKey {
		settings.OpenRouterAPIKey = ""
	} else if req.OpenRouterAPIKey != nil {
		settings.OpenRouterAPIKey = strings.TrimSpace(*req.OpenRouterAPIKey)
	}
	if req.ClearDeepSeekKey != nil && *req.ClearDeepSeekKey {
		settings.DeepSeekAPIKey = ""
	} else if req.DeepSeekAPIKey != nil {
		settings.DeepSeekAPIKey = strings.TrimSpace(*req.DeepSeekAPIKey)
	}
	if req.ClearGeminiKey != nil && *req.ClearGeminiKey {
		settings.GeminiAPIKey = ""
	} else if req.GeminiAPIKey != nil {
		settings.GeminiAPIKey = strings.TrimSpace(*req.GeminiAPIKey)
	}
	if req.ClearOllamaURL != nil && *req.ClearOllamaURL {
		settings.OllamaBaseURL = ""
	} else if req.OllamaBaseURL != nil {
		settings.OllamaBaseURL = strings.TrimSpace(*req.OllamaBaseURL)
	}
	if req.ClearOllamaUsername != nil && *req.ClearOllamaUsername {
		settings.OllamaUsername = ""
	} else if req.OllamaUsername != nil {
		settings.OllamaUsername = strings.TrimSpace(*req.OllamaUsername)
	}
	if req.ClearOllamaPassword != nil && *req.ClearOllamaPassword {
		settings.OllamaPassword = ""
	} else if req.OllamaPassword != nil {
		settings.OllamaPassword = *req.OllamaPassword
	}
	if req.OpenAIBaseURL != nil {
		settings.OpenAIBaseURL = strings.TrimSpace(*req.OpenAIBaseURL)
	}

	// Track whether we should opportunistically refresh quickstart state after validation.
	refreshQuickstartState := false
	if req.Enabled != nil {
		// Only allow enabling if at least one provider is configured OR quickstart credits are available
		if *req.Enabled {
			configuredProviders := settings.GetConfiguredProviders()
			if len(configuredProviders) == 0 {
				// Check if quickstart credits can bridge the gap
				aiSvc := h.GetAIService(r.Context())
				hasQuickstart := false
				var bootstrapErr error
				if aiSvc != nil {
					if qsMgr := aiSvc.GetQuickstartCredits(); qsMgr != nil {
						bootstrapErr = qsMgr.EnsureBootstrap(r.Context())
						hasQuickstart = qsMgr.HasCredits() && qsMgr.GetProvider() != nil
					}
				}
				if !hasQuickstart {
					blockedReason := strings.TrimSpace(ai.QuickstartBlockedReasonForError(bootstrapErr))
					switch blockedReason {
					case ai.QuickstartActivationRequiredReason():
						http.Error(w, blockedReason, http.StatusConflict)
						return
					case ai.QuickstartUnavailableReason():
						http.Error(w, ai.QuickstartUnavailableReason(), http.StatusBadGateway)
						return
					}
					http.Error(w, "Please configure a provider (API key or Ollama URL) before enabling Pulse Assistant", http.StatusBadRequest)
					return
				}
				// Quickstart credits available — allow enabling without BYOK.
				// Persist all model strings so chat.Service restart picks them
				// up from disk. All three must point to quickstart — any stale
				// BYOK model reference would cause the chat service to fail.
				quickstartModelStr := config.DefaultModelForProvider(config.AIProviderQuickstart)
				settings.Model = quickstartModelStr
				settings.PatrolModel = quickstartModelStr
				settings.ChatModel = quickstartModelStr
			} else {
				if aiSettingsRequireModelResolution(settings) {
					resolvedModel, resolveErr := ai.ResolveConfiguredModel(r.Context(), settings)
					if resolveErr != nil {
						http.Error(w, fmt.Sprintf("Failed to resolve provider model: %v", resolveErr), http.StatusBadGateway)
						return
					}
					settings.Model = resolvedModel
				}
				// BYOK is configured — refresh quickstart state best-effort so the
				// Patrol status API can still report the current server snapshot.
				refreshQuickstartState = true
			}
		}
		settings.Enabled = *req.Enabled
	}

	// Handle patrol interval - prefer custom minutes over preset
	if req.PatrolIntervalMinutes != nil {
		minutes := *req.PatrolIntervalMinutes
		if minutes < 0 {
			http.Error(w, "patrol_interval_minutes cannot be negative", http.StatusBadRequest)
			return
		}
		if minutes > 0 && minutes < 10 {
			http.Error(w, "patrol_interval_minutes must be at least 10 minutes (or 0 to disable)", http.StatusBadRequest)
			return
		}
		if minutes > 10080 { // 7 days max
			http.Error(w, "patrol_interval_minutes cannot exceed 10080 (7 days)", http.StatusBadRequest)
			return
		}

		settings.PatrolIntervalMinutes = minutes
		if minutes > 0 {
			settings.PatrolEnabled = true // Enable patrol when setting custom interval
		} else {
			settings.PatrolEnabled = false // Disable patrol when setting interval to 0
		}
	}

	if req.PatrolEnabled != nil && req.PatrolIntervalMinutes == nil {
		settings.PatrolEnabled = *req.PatrolEnabled
		if *req.PatrolEnabled {
			// Ensure we have a sane default interval when turning on
			if settings.PatrolIntervalMinutes <= 0 {
				settings.PatrolIntervalMinutes = 360
			}
		}
	}

	if req.CostBudgetUSD30d != nil {
		if *req.CostBudgetUSD30d < 0 {
			http.Error(w, "cost_budget_usd_30d cannot be negative", http.StatusBadRequest)
			return
		}
		settings.CostBudgetUSD30d = *req.CostBudgetUSD30d
	}

	// Handle alert-triggered analysis toggle
	if req.AlertTriggeredAnalysis != nil {
		// Alert analysis requires Pro license with ai_alerts feature
		if *req.AlertTriggeredAnalysis && !h.GetAIService(r.Context()).HasLicenseFeature(ai.FeatureAIAlerts) {
			WriteLicenseRequired(w, ai.FeatureAIAlerts, "Pulse Alert Analysis requires Pulse Pro")
			return
		}
		settings.AlertTriggeredAnalysis = *req.AlertTriggeredAnalysis
	}

	// Handle legacy aggregate event-triggered patrol toggle
	if req.PatrolEventTriggersEnabled != nil {
		settings.SetPatrolEventTriggersEnabled(*req.PatrolEventTriggersEnabled)
	}

	// Handle split scoped patrol trigger toggles
	if req.PatrolAlertTriggersEnabled != nil || req.PatrolAnomalyTriggersEnabled != nil {
		triggerSettings := settings.GetPatrolEventTriggerSettings()
		if req.PatrolAlertTriggersEnabled != nil {
			triggerSettings.AlertTriggersEnabled = *req.PatrolAlertTriggersEnabled
		}
		if req.PatrolAnomalyTriggersEnabled != nil {
			triggerSettings.AnomalyTriggersEnabled = *req.PatrolAnomalyTriggersEnabled
		}
		settings.SetPatrolEventTriggerSettings(
			triggerSettings.AlertTriggersEnabled,
			triggerSettings.AnomalyTriggersEnabled,
		)
	}

	// Handle request timeout (for slow hardware)
	if req.RequestTimeoutSeconds != nil {
		if *req.RequestTimeoutSeconds < 0 {
			http.Error(w, "request_timeout_seconds cannot be negative", http.StatusBadRequest)
			return
		}
		if *req.RequestTimeoutSeconds > 3600 {
			http.Error(w, "request_timeout_seconds cannot exceed 3600 (1 hour)", http.StatusBadRequest)
			return
		}
		settings.RequestTimeoutSeconds = *req.RequestTimeoutSeconds
	}

	// Handle infrastructure control settings
	if req.ControlLevel != nil {
		level := strings.TrimSpace(*req.ControlLevel)
		if !config.IsValidControlLevel(level) {
			http.Error(w, "invalid control_level: must be read_only, controlled, or autonomous", http.StatusBadRequest)
			return
		}
		// "autonomous" requires Pro license
		if level == config.ControlLevelAutonomous {
			if !h.GetAIService(r.Context()).HasLicenseFeature(ai.FeatureAIAutoFix) {
				WriteLicenseRequired(w, ai.FeatureAIAutoFix, "Autonomous control requires Pulse Pro")
				return
			}
		}
		settings.ControlLevel = level
	}

	// Handle protected guests (nil = don't update)
	if req.ProtectedGuests != nil {
		settings.ProtectedGuests = req.ProtectedGuests
	}

	// Handle discovery settings
	if req.DiscoveryEnabled != nil {
		settings.DiscoveryEnabled = *req.DiscoveryEnabled
	}
	if req.DiscoveryIntervalHours != nil {
		if *req.DiscoveryIntervalHours < 0 {
			http.Error(w, "discovery_interval_hours cannot be negative", http.StatusBadRequest)
			return
		}
		settings.DiscoveryIntervalHours = *req.DiscoveryIntervalHours
	}

	// Auto-default discovery interval to 24h when enabled with no interval set.
	// Without this, enabling discovery with interval=0 silently stays in manual-only mode.
	if settings.DiscoveryEnabled && settings.DiscoveryIntervalHours == 0 {
		settings.DiscoveryIntervalHours = 24
	}

	// Refresh quickstart bootstrap state now that validation has passed.
	if refreshQuickstartState {
		if aiSvc := h.GetAIService(r.Context()); aiSvc != nil {
			if qsMgr := aiSvc.GetQuickstartCredits(); qsMgr != nil {
				if err := qsMgr.EnsureBootstrap(r.Context()); err != nil {
					log.Warn().Err(err).Msg("Failed to refresh quickstart bootstrap state")
				}
			}
		}
	}

	if aiSettingsRequireModelResolution(settings) {
		resolvedModel, resolveErr := ai.ResolveConfiguredModel(r.Context(), settings)
		if resolveErr != nil {
			http.Error(w, fmt.Sprintf("Failed to resolve provider model: %v", resolveErr), http.StatusBadGateway)
			return
		}
		settings.Model = resolvedModel
	}
	settings.NormalizeQuickstartModelAliases()

	// Save settings
	if err := h.getPersistence(r.Context()).SaveAIConfig(*settings); err != nil {
		log.Error().Err(err).Msg("Failed to save AI settings")
		http.Error(w, "Failed to save settings", http.StatusInternalServerError)
		return
	}

	// Reload the AI service with new settings
	if err := h.GetAIService(r.Context()).Reload(); err != nil {
		log.Warn().Err(err).Msg("Failed to reload AI service after settings update")
	}

	// Reconfigure patrol service with new settings (applies interval changes immediately)
	h.GetAIService(r.Context()).ReconfigurePatrol()

	// Update alert-triggered analyzer if available
	if analyzer := h.GetAIService(r.Context()).GetAlertTriggeredAnalyzer(); analyzer != nil {
		analyzer.SetEnabled(settings.AlertTriggeredAnalysis)
	}

	// Trigger AI chat service restart when provider-affecting settings change.
	// The running service keeps provider configuration in memory, so credential,
	// base URL, or model updates must restart the chat runtime to take effect.
	if h.onModelChange != nil && shouldRestartAIChat(req) {
		h.onModelChange()
	}

	// Update MCP control settings if control level or protected guests changed
	// This updates tool visibility without restarting AI chat
	if h.onControlSettingsChange != nil && (req.ControlLevel != nil || req.ProtectedGuests != nil) {
		h.onControlSettingsChange()
	}

	providerName, _ := config.ParseModelString(settings.GetModel())
	LogAuditEventForTenant(GetOrgID(r.Context()), "ai_settings_updated", getAuthUsername(h.getConfig(r.Context()), r), GetClientIP(r), r.URL.Path, true,
		fmt.Sprintf("AI settings updated: enabled=%t provider=%s model=%s", settings.Enabled, providerName, settings.GetModel()))

	log.Info().
		Bool("enabled", settings.Enabled).
		Str("provider", providerName).
		Str("model", settings.GetModel()).
		Str("chatModel", config.NormalizeQuickstartModelString(settings.ChatModel)).
		Str("patrolModel", config.NormalizeQuickstartModelString(settings.PatrolModel)).
		Bool("alertTriggeredAnalysis", settings.AlertTriggeredAnalysis).
		Msg("AI settings updated")

	// Determine auth method for response
	authMethod := string(settings.AuthMethod)
	if authMethod == "" {
		authMethod = string(config.AuthMethodAPIKey)
	}
	triggerSettings := settings.GetPatrolEventTriggerSettings()

	// Return updated settings
	response := AISettingsResponse{
		Enabled:                      settings.Enabled,
		Model:                        settings.GetModel(),
		ChatModel:                    config.NormalizeQuickstartModelString(settings.ChatModel),
		PatrolModel:                  config.NormalizeQuickstartModelString(settings.PatrolModel),
		AutoFixModel:                 config.NormalizeQuickstartModelString(settings.AutoFixModel),
		Configured:                   settings.IsConfigured(),
		CustomContext:                settings.CustomContext,
		AuthMethod:                   authMethod,
		OAuthConnected:               settings.OAuthAccessToken != "",
		PatrolIntervalMinutes:        settings.PatrolIntervalMinutes,
		PatrolEnabled:                settings.PatrolEnabled,
		PatrolAutoFix:                settings.PatrolAutoFix,
		AlertTriggeredAnalysis:       settings.AlertTriggeredAnalysis,
		PatrolEventTriggersEnabled:   triggerSettings.AlertTriggersEnabled || triggerSettings.AnomalyTriggersEnabled,
		PatrolAlertTriggersEnabled:   triggerSettings.AlertTriggersEnabled,
		PatrolAnomalyTriggersEnabled: triggerSettings.AnomalyTriggersEnabled,
		UseProactiveThresholds:       settings.UseProactiveThresholds,
		AvailableModels:              nil, // Now populated via /api/ai/models endpoint
		// Multi-provider configuration
		AnthropicConfigured:    settings.HasProvider(config.AIProviderAnthropic),
		OpenAIConfigured:       settings.HasProvider(config.AIProviderOpenAI),
		OpenRouterConfigured:   settings.HasProvider(config.AIProviderOpenRouter),
		DeepSeekConfigured:     settings.HasProvider(config.AIProviderDeepSeek),
		GeminiConfigured:       settings.HasProvider(config.AIProviderGemini),
		OllamaConfigured:       settings.HasProvider(config.AIProviderOllama),
		OllamaBaseURL:          settings.GetBaseURLForProvider(config.AIProviderOllama),
		OllamaUsername:         settings.OllamaUsername,
		OllamaPasswordSet:      settings.OllamaPassword != "",
		OpenAIBaseURL:          settings.OpenAIBaseURL,
		ConfiguredProviders:    settings.GetConfiguredProviders(),
		RequestTimeoutSeconds:  settings.RequestTimeoutSeconds,
		ControlLevel:           settings.GetControlLevel(),
		ProtectedGuests:        settings.GetProtectedGuests(),
		DiscoveryEnabled:       settings.DiscoveryEnabled,
		DiscoveryIntervalHours: settings.DiscoveryIntervalHours,
	}.NormalizeCollections()

	// Populate quickstart credit info
	h.populateQuickstartFields(r.Context(), &response)

	// If quickstart credits are available, mark as configured even without BYOK
	if response.QuickstartCreditsAvailable && !response.Configured {
		response.Configured = true
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write AI settings update response")
	}
}

// HandleTestAIConnection tests the AI provider connection (POST /api/ai/test)
// Auth is enforced by RequirePermission middleware at route registration; with
// default authorizer, non-admin proxy users are hard-denied (with RBAC, deferred
// to authorizer). Token scope is enforced by RequireScope middleware.
// ensureSettingsWriteScope provides the additional admin-session identity guard
// for session-based (non-token) users.
func (h *AISettingsHandler) HandleTestAIConnection(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	if !ensureSettingsWriteScope(h.getConfig(r.Context()), w, r) {
		return
	}

	ctx, cancel := context.WithTimeout(r.Context(), 30*time.Second)
	defer cancel()

	var testResult struct {
		Success bool   `json:"success"`
		Message string `json:"message"`
		Model   string `json:"model,omitempty"`
	}

	err := h.GetAIService(r.Context()).TestConnection(ctx)
	if err != nil {
		testResult.Success = false
		testResult.Message = "Connection test failed"
		log.Error().Err(err).Msg("AI connection test failed")
	} else {
		cfg := h.GetAIService(r.Context()).GetConfig()
		testResult.Success = true
		testResult.Message = "Connection successful"
		if cfg != nil {
			testResult.Model = cfg.GetModel()
		}
	}

	if err := utils.WriteJSONResponse(w, testResult); err != nil {
		log.Error().Err(err).Msg("Failed to write AI test response")
	}
}

// HandleTestProvider tests a specific AI provider connection (POST /api/ai/test/:provider)
// Auth is enforced by RequirePermission middleware at route registration; with
// default authorizer, non-admin proxy users are hard-denied (with RBAC, deferred
// to authorizer). Token scope is enforced by RequireScope middleware.
// ensureSettingsWriteScope provides the additional admin-session identity guard
// for session-based (non-token) users.
func (h *AISettingsHandler) HandleTestProvider(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	if !ensureSettingsWriteScope(h.getConfig(r.Context()), w, r) {
		return
	}

	// Get provider from URL path (e.g., /api/ai/test/anthropic -> anthropic)
	provider := strings.TrimPrefix(r.URL.Path, "/api/ai/test/")
	if provider == "" || provider == r.URL.Path {
		http.Error(w, `{"error":"Provider is required"}`, http.StatusBadRequest)
		return
	}

	// Validate provider name: only allow lowercase alphanumeric and hyphens,
	// max 64 chars. This rejects path traversal, slashes, and injection attempts.
	if len(provider) > 64 || !isValidProviderName(provider) {
		http.Error(w, `{"error":"Invalid provider name"}`, http.StatusBadRequest)
		return
	}

	ctx, cancel := context.WithTimeout(r.Context(), 30*time.Second)
	defer cancel()

	var testResult struct {
		Success  bool   `json:"success"`
		Message  string `json:"message"`
		Provider string `json:"provider"`
	}
	testResult.Provider = provider

	// Load config and create provider for testing
	cfg := h.GetAIService(r.Context()).GetConfig()
	if cfg == nil {
		testResult.Success = false
		testResult.Message = "Pulse Assistant not configured"
		if err := utils.WriteJSONResponse(w, testResult); err != nil {
			log.Error().Err(err).Msg("failed to write JSON response")
		}
		return
	}

	// Check if provider is configured
	if !cfg.HasProvider(provider) {
		testResult.Success = false
		testResult.Message = "Provider not configured"
		if err := utils.WriteJSONResponse(w, testResult); err != nil {
			log.Error().Err(err).Msg("failed to write JSON response")
		}
		return
	}

	// Create provider and test connection
	model, err := ai.ResolvePreferredModelForProvider(ctx, cfg, provider)
	if err != nil {
		testResult.Success = false
		testResult.Message = "Failed to resolve provider model"
		log.Error().Err(err).Str("provider", provider).Msg("AI provider model resolution failed")
		if err := utils.WriteJSONResponse(w, testResult); err != nil {
			log.Error().Err(err).Msg("failed to write provider test response")
		}
		return
	}

	testProvider, err := providers.NewForProvider(cfg, provider, model)
	if err != nil {
		testResult.Success = false
		testResult.Message = "Failed to create provider"
		log.Error().Err(err).Str("provider", provider).Msg("AI provider creation failed")
		if err := utils.WriteJSONResponse(w, testResult); err != nil {
			log.Error().Err(err).Msg("failed to write JSON response")
		}
		return
	}

	err = testProvider.TestConnection(ctx)
	if err != nil {
		testResult.Success = false
		testResult.Message = "Connection test failed"
		log.Error().Err(err).Str("provider", provider).Msg("AI provider connection test failed")
	} else {
		testResult.Success = true
		testResult.Message = "Connection successful"
	}

	if err := utils.WriteJSONResponse(w, testResult); err != nil {
		log.Error().Err(err).Msg("Failed to write provider test response")
	}
}

// isValidProviderName returns true if s contains only lowercase letters, digits,
// and hyphens. This prevents path traversal, URL injection, and log injection.
func isValidProviderName(s string) bool {
	for _, c := range s {
		if !((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '-') {
			return false
		}
	}
	return len(s) > 0
}

// HandleListModels fetches available models from the configured AI provider (GET /api/ai/models)
func (h *AISettingsHandler) HandleListModels(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Auth is enforced by RequireAuth + RequireScope middleware at the route level.

	ctx, cancel := context.WithTimeout(r.Context(), 30*time.Second)
	defer cancel()

	type ModelInfo struct {
		ID          string `json:"id"`
		Name        string `json:"name"`
		Description string `json:"description,omitempty"`
		CreatedAt   int64  `json:"created_at,omitempty"`
		Notable     bool   `json:"notable"`
	}

	type Response struct {
		Models []ModelInfo `json:"models"`
		Error  string      `json:"error,omitempty"`
		Cached bool        `json:"cached"`
	}

	models, cached, err := h.GetAIService(r.Context()).ListModelsWithCache(ctx)
	if err != nil {
		// Return error but don't fail the request - frontend can show a fallback
		log.Error().Err(err).Msg("Failed to list AI models")
		resp := Response{
			Models: []ModelInfo{},
			Error:  "Failed to fetch model list",
		}
		if jsonErr := utils.WriteJSONResponse(w, resp); jsonErr != nil {
			log.Error().Err(jsonErr).Msg("Failed to write AI models response")
		}
		return
	}

	// Convert provider models to response format
	responseModels := make([]ModelInfo, 0, len(models))
	notableCount := 0
	for _, m := range models {
		if m.Notable {
			notableCount++
		}
		responseModels = append(responseModels, ModelInfo{
			ID:          m.ID,
			Name:        m.Name,
			Description: m.Description,
			CreatedAt:   m.CreatedAt,
			Notable:     m.Notable,
		})
	}

	log.Debug().Int("total", len(responseModels)).Int("notable", notableCount).Msg("Returning AI models")

	resp := Response{
		Models: responseModels,
		Cached: cached,
	}

	if err := utils.WriteJSONResponse(w, resp); err != nil {
		log.Error().Err(err).Msg("Failed to write AI models response")
	}
}

// AIExecuteRequest is the request body for POST /api/ai/execute
// AIConversationMessage represents a message in conversation history
type AIConversationMessage struct {
	Role    string `json:"role"` // "user" or "assistant"
	Content string `json:"content"`
}

type AIExecuteRequest struct {
	Prompt     string                  `json:"prompt"`
	TargetType string                  `json:"target_type,omitempty"` // "agent", "system-container", "vm"
	TargetID   string                  `json:"target_id,omitempty"`
	Context    map[string]interface{}  `json:"context,omitempty"` // Current metrics, state, etc.
	History    []AIConversationMessage `json:"history,omitempty"` // Previous conversation messages
	FindingID  string                  `json:"finding_id,omitempty"`
	Model      string                  `json:"model,omitempty"`
	UseCase    string                  `json:"use_case,omitempty"` // "chat" or "patrol"
}

func normalizeAIExecuteTargetType(raw string) string {
	return strings.ToLower(strings.TrimSpace(raw))
}

func normalizeAndValidateAIExecuteTargetType(raw string) (string, error) {
	targetType := normalizeAIExecuteTargetType(raw)
	if targetType == "" {
		return "", nil
	}

	switch targetType {
	case "agent", "system-container", "vm":
		return targetType, nil
	default:
		return "", fmt.Errorf("invalid target_type")
	}
}

// AIExecuteResponse is the response from POST /api/ai/execute
type AIExecuteResponse struct {
	Content          string                  `json:"content"`
	Model            string                  `json:"model"`
	InputTokens      int                     `json:"input_tokens"`
	OutputTokens     int                     `json:"output_tokens"`
	ToolCalls        []ai.ToolExecution      `json:"tool_calls"`        // Commands that were executed
	PendingApprovals []ai.ApprovalNeededData `json:"pending_approvals"` // Commands that require approval (non-streaming)
}

func EmptyAIExecuteResponse() AIExecuteResponse {
	return AIExecuteResponse{}.NormalizeCollections()
}

func (r AIExecuteResponse) NormalizeCollections() AIExecuteResponse {
	if r.ToolCalls == nil {
		r.ToolCalls = []ai.ToolExecution{}
	}
	if r.PendingApprovals == nil {
		r.PendingApprovals = []ai.ApprovalNeededData{}
	}
	return r
}

type aiExecuteStreamCompleteEvent struct {
	Type         string             `json:"type"`
	Model        string             `json:"model"`
	InputTokens  int                `json:"input_tokens"`
	OutputTokens int                `json:"output_tokens"`
	ToolCalls    []ai.ToolExecution `json:"tool_calls"`
}

func emptyAIExecuteStreamCompleteEvent() aiExecuteStreamCompleteEvent {
	return aiExecuteStreamCompleteEvent{}.NormalizeCollections()
}

func (e aiExecuteStreamCompleteEvent) NormalizeCollections() aiExecuteStreamCompleteEvent {
	if e.ToolCalls == nil {
		e.ToolCalls = []ai.ToolExecution{}
	}
	return e
}

type AIKubernetesAnalyzeRequest struct {
	ClusterID string `json:"cluster_id"`
}

// HandleExecute executes an AI prompt (POST /api/ai/execute)
func (h *AISettingsHandler) HandleExecute(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Authentication is enforced by RequireAdmin middleware at route registration.

	// Check if AI is enabled
	if !h.GetAIService(r.Context()).IsEnabled() {
		http.Error(w, "Pulse Assistant is not enabled or configured", http.StatusBadRequest)
		return
	}

	// Parse request
	r.Body = http.MaxBytesReader(w, r.Body, 64*1024)
	bodyBytes, readErr := io.ReadAll(r.Body)
	if readErr != nil {
		log.Error().Err(readErr).Msg("Failed to read request body")
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	var req AIExecuteRequest
	if err := json.Unmarshal(bodyBytes, &req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	// Fine-grained license checks based on UseCase
	useCase := strings.ToLower(strings.TrimSpace(req.UseCase))
	if useCase == "autofix" || useCase == "remediation" {
		if !h.GetAIService(r.Context()).HasLicenseFeature(ai.FeatureAIAutoFix) {
			WriteLicenseRequired(w, ai.FeatureAIAutoFix, "Pulse Patrol Auto-Fix requires Pulse Pro")
			return
		}
	}

	if strings.TrimSpace(req.Prompt) == "" {
		http.Error(w, "Prompt is required", http.StatusBadRequest)
		return
	}

	// Validate and normalize target_type if provided
	targetType, err := normalizeAndValidateAIExecuteTargetType(req.TargetType)
	if err != nil {
		http.Error(w, "Invalid target_type (allowed: agent, system-container, vm)", http.StatusBadRequest)
		return
	}

	// Validate target_id length if provided
	if len(req.TargetID) > 256 {
		http.Error(w, "target_id exceeds maximum length", http.StatusBadRequest)
		return
	}

	// Validate conversation history roles
	for _, msg := range req.History {
		switch msg.Role {
		case "user", "assistant":
			// valid
		default:
			http.Error(w, "Invalid role in history (allowed: user, assistant)", http.StatusBadRequest)
			return
		}
	}

	// Execute the prompt with a timeout
	ctx, cancel := context.WithTimeout(r.Context(), 120*time.Second)
	defer cancel()

	// Convert history from API type to service type
	var history []ai.ConversationMessage
	for _, msg := range req.History {
		history = append(history, ai.ConversationMessage{
			Role:    msg.Role,
			Content: msg.Content,
		})
	}

	if useCase == "" {
		useCase = "chat"
	}

	resp, err := h.GetAIService(r.Context()).Execute(ctx, ai.ExecuteRequest{
		Prompt:     req.Prompt,
		TargetType: targetType,
		TargetID:   req.TargetID,
		Context:    req.Context,
		History:    history,
		FindingID:  req.FindingID,
		Model:      req.Model,
		UseCase:    useCase,
	})
	if err != nil {
		log.Error().Err(err).Msg("AI execution failed")
		http.Error(w, "Pulse Assistant request failed", http.StatusInternalServerError)
		return
	}

	response := AIExecuteResponse{
		Content:          resp.Content,
		Model:            resp.Model,
		InputTokens:      resp.InputTokens,
		OutputTokens:     resp.OutputTokens,
		ToolCalls:        resp.ToolCalls,
		PendingApprovals: resp.PendingApprovals,
	}.NormalizeCollections()

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write AI execute response")
	}
}

// HandleAnalyzeKubernetesCluster analyzes a Kubernetes cluster with AI (POST /api/ai/kubernetes/analyze)
func (h *AISettingsHandler) HandleAnalyzeKubernetesCluster(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	if !h.GetAIService(r.Context()).IsEnabled() {
		http.Error(w, "Pulse Assistant is not enabled or configured", http.StatusBadRequest)
		return
	}

	r.Body = http.MaxBytesReader(w, r.Body, 16*1024)
	var req AIKubernetesAnalyzeRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if strings.TrimSpace(req.ClusterID) == "" {
		http.Error(w, "cluster_id is required", http.StatusBadRequest)
		return
	}

	ctx, cancel := context.WithTimeout(r.Context(), 180*time.Second)
	defer cancel()

	resp, err := h.GetAIService(r.Context()).AnalyzeKubernetesCluster(ctx, req.ClusterID)
	if err != nil {
		switch {
		case errors.Is(err, ai.ErrKubernetesClusterNotFound):
			http.Error(w, "Kubernetes cluster not found", http.StatusNotFound)
			return
		case errors.Is(err, ai.ErrKubernetesStateUnavailable):
			http.Error(w, "Kubernetes state not available", http.StatusServiceUnavailable)
			return
		default:
			log.Error().Err(err).Str("cluster_id", req.ClusterID).Msg("Kubernetes AI analysis failed")
			http.Error(w, "Pulse Assistant request failed", http.StatusInternalServerError)
			return
		}
	}

	response := AIExecuteResponse{
		Content:          resp.Content,
		Model:            resp.Model,
		InputTokens:      resp.InputTokens,
		OutputTokens:     resp.OutputTokens,
		ToolCalls:        resp.ToolCalls,
		PendingApprovals: resp.PendingApprovals,
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write Kubernetes AI response")
	}
}

// HandleExecuteStream executes an AI prompt with SSE streaming (POST /api/ai/execute/stream)
func (h *AISettingsHandler) HandleExecuteStream(w http.ResponseWriter, r *http.Request) {
	// Handle CORS for dev mode (frontend on different port)
	h.setSSECORSHeaders(w, r)

	// Handle preflight
	if r.Method == http.MethodOptions {
		w.WriteHeader(http.StatusOK)
		return
	}

	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// NOTE: Authentication is enforced by RequireAdmin middleware at route
	// registration (router_routes_ai_relay.go). No redundant CheckAuth needed.

	// Check if AI is enabled
	if !h.GetAIService(r.Context()).IsEnabled() {
		http.Error(w, "Pulse Assistant is not enabled or configured", http.StatusBadRequest)
		return
	}

	// Parse request
	r.Body = http.MaxBytesReader(w, r.Body, 64*1024) // 64KB max
	var req AIExecuteRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		log.Warn().Err(err).Msg("Failed to decode AI execute stream request")
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	// Fine-grained license checks based on UseCase (before SSE headers)
	useCase := strings.ToLower(strings.TrimSpace(req.UseCase))
	if useCase == "autofix" || useCase == "remediation" {
		if !h.GetAIService(r.Context()).HasLicenseFeature(ai.FeatureAIAutoFix) {
			WriteLicenseRequired(w, ai.FeatureAIAutoFix, "Pulse Patrol Auto-Fix requires Pulse Pro")
			return
		}
	}

	if strings.TrimSpace(req.Prompt) == "" {
		http.Error(w, "Prompt is required", http.StatusBadRequest)
		return
	}

	// Validate and normalize target_type if provided
	targetType, err := normalizeAndValidateAIExecuteTargetType(req.TargetType)
	if err != nil {
		http.Error(w, "Invalid target_type (allowed: agent, system-container, vm)", http.StatusBadRequest)
		return
	}

	// Validate target_id length if provided
	if len(req.TargetID) > 256 {
		http.Error(w, "target_id exceeds maximum length", http.StatusBadRequest)
		return
	}

	// Validate conversation history roles
	for _, msg := range req.History {
		switch msg.Role {
		case "user", "assistant":
			// valid
		default:
			http.Error(w, "Invalid role in history (allowed: user, assistant)", http.StatusBadRequest)
			return
		}
	}

	log.Info().
		Int("prompt_len", len(req.Prompt)).
		Str("target_type", targetType).
		Str("target_id", req.TargetID).
		Msg("AI streaming request started")

	// Set up SSE headers
	// IMPORTANT: Set headers BEFORE any writes to prevent Go from auto-adding Transfer-Encoding: chunked
	w.Header().Set("Content-Type", "text/event-stream")
	w.Header().Set("Cache-Control", "no-cache")
	w.Header().Set("Connection", "keep-alive")
	w.Header().Set("X-Accel-Buffering", "no") // Disable nginx buffering
	// Prevent chunked encoding which causes "Invalid character in chunk size" errors in Vite proxy
	w.Header().Set("Transfer-Encoding", "identity")

	flusher, ok := w.(http.Flusher)
	if !ok {
		http.Error(w, "Streaming not supported", http.StatusInternalServerError)
		return
	}

	// Disable the server's write deadline for this SSE connection
	// This is critical for long-running AI requests that can take several minutes
	rc := http.NewResponseController(w)
	if err := rc.SetWriteDeadline(time.Time{}); err != nil {
		log.Warn().Err(err).Msg("Failed to disable write deadline for SSE")
	}
	// Also disable read deadline
	if err := rc.SetReadDeadline(time.Time{}); err != nil {
		log.Warn().Err(err).Msg("Failed to disable read deadline for SSE")
	}

	// Flush headers immediately
	flusher.Flush()

	// Create context with timeout (15 minutes for complex analysis with multiple tool calls)
	// Use background context to avoid browser disconnect canceling the request
	// DeepSeek reasoning models + multiple tool executions can easily take 5+ minutes
	ctx, cancel := context.WithTimeout(context.Background(), 900*time.Second)
	defer cancel()

	// Set up heartbeat to keep connection alive during long tool executions
	// NOTE: We don't check r.Context().Done() because Vite proxy may close
	// the request context prematurely. We detect real disconnection via write failures.
	heartbeatDone := make(chan struct{})
	var clientDisconnected atomic.Bool
	go func() {
		ticker := time.NewTicker(5 * time.Second)
		defer ticker.Stop()
		for {
			select {
			case <-ticker.C:
				// Extend write deadline before heartbeat
				_ = rc.SetWriteDeadline(time.Now().Add(10 * time.Second))
				// Send SSE comment as heartbeat
				_, err := w.Write([]byte(": heartbeat\n\n"))
				if err != nil {
					log.Debug().Err(err).Msg("Heartbeat write failed, stopping heartbeat (AI continues)")
					clientDisconnected.Store(true)
					// Don't cancel the AI request - let it complete with its own timeout
					// The SSE connection may have issues but the AI work can still finish
					return
				}
				flusher.Flush()
				log.Debug().Msg("Sent SSE heartbeat")
			case <-heartbeatDone:
				return
			}
		}
	}()
	defer close(heartbeatDone)

	// Helper to safely write SSE events, tracking if client disconnected
	safeWrite := func(data []byte) bool {
		if clientDisconnected.Load() {
			return false
		}
		_ = rc.SetWriteDeadline(time.Now().Add(10 * time.Second))
		_, err := w.Write(data)
		if err != nil {
			log.Debug().Err(err).Msg("Failed to write SSE event (client may have disconnected)")
			clientDisconnected.Store(true)
			return false
		}
		flusher.Flush()
		return true
	}

	// Stream callback - write SSE events
	callback := func(event ai.StreamEvent) {
		// Skip the 'done' event from service - we'll send our own at the end
		// This ensures 'complete' comes before 'done'
		if event.Type == "done" {
			log.Debug().Msg("Skipping service 'done' event - will send final 'done' after 'complete'")
			return
		}

		data, err := json.Marshal(event)
		if err != nil {
			log.Error().Err(err).Msg("Failed to marshal stream event")
			return
		}

		log.Debug().
			Str("event_type", event.Type).
			Msg("Streaming AI event")

		// SSE format: data: <json>\n\n
		safeWrite([]byte("data: " + string(data) + "\n\n"))
	}

	// Convert history from API type to service type
	var history []ai.ConversationMessage
	for _, msg := range req.History {
		history = append(history, ai.ConversationMessage{
			Role:    msg.Role,
			Content: msg.Content,
		})
	}

	if useCase == "" {
		useCase = "chat"
	}

	// Ensure we always send a final 'done' event
	defer func() {
		if !clientDisconnected.Load() {
			doneEvent := ai.StreamEvent{Type: "done"}
			data, _ := json.Marshal(doneEvent)
			safeWrite([]byte("data: " + string(data) + "\n\n"))
			log.Debug().Msg("Sent final 'done' event")
		}
	}()

	// Execute with streaming
	resp, err := h.GetAIService(r.Context()).ExecuteStream(ctx, ai.ExecuteRequest{
		Prompt:     req.Prompt,
		TargetType: targetType,
		TargetID:   req.TargetID,
		Context:    req.Context,
		History:    history,
		FindingID:  req.FindingID,
		Model:      req.Model,
		UseCase:    useCase,
	}, callback)

	if err != nil {
		log.Error().Err(err).Msg("AI streaming execution failed")
		// Send error event — use generic message to avoid leaking internal details
		errEvent := ai.StreamEvent{Type: "error", Data: map[string]string{"message": "AI request failed. Please try again."}}
		data, _ := json.Marshal(errEvent)
		safeWrite([]byte("data: " + string(data) + "\n\n"))
		return
	}

	log.Info().
		Str("model", resp.Model).
		Int("input_tokens", resp.InputTokens).
		Int("output_tokens", resp.OutputTokens).
		Int("tool_calls", len(resp.ToolCalls)).
		Msg("AI streaming request completed")

	// Send final response with metadata (before 'done')
	finalEvent := aiExecuteStreamCompleteEvent{
		Type:         "complete",
		Model:        resp.Model,
		InputTokens:  resp.InputTokens,
		OutputTokens: resp.OutputTokens,
		ToolCalls:    resp.ToolCalls,
	}.NormalizeCollections()
	data, _ := json.Marshal(finalEvent)
	safeWrite([]byte("data: " + string(data) + "\n\n"))
	// 'done' event is sent by the defer above
}

// AIRunCommandRequest is the request body for POST /api/ai/run-command
type AIRunCommandRequest struct {
	Command    string `json:"command"`
	ApprovalID string `json:"approval_id"`
	TargetType string `json:"target_type"`
	TargetID   string `json:"target_id"`
	RunOnHost  bool   `json:"run_on_host"`
	VMID       string `json:"vmid,omitempty"`
	TargetHost string `json:"target_host,omitempty"` // Explicit host for routing
}

// HandleRunCommand executes a single approved command (POST /api/ai/run-command)
func (h *AISettingsHandler) HandleRunCommand(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	// Gated for AI Auto-Fix (Pro feature)
	if !h.GetAIService(r.Context()).HasLicenseFeature(ai.FeatureAIAutoFix) {
		WriteLicenseRequired(w, ai.FeatureAIAutoFix, "Pulse Patrol Auto-Fix requires Pulse Pro")
		return
	}

	// Parse request
	r.Body = http.MaxBytesReader(w, r.Body, 16*1024)
	bodyBytes, readErr := io.ReadAll(r.Body)
	if readErr != nil {
		log.Error().Err(readErr).Msg("Failed to read request body")
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}
	log.Debug().Int("body_len", len(bodyBytes)).Msg("run-command request received")

	var req AIRunCommandRequest
	if err := json.Unmarshal(bodyBytes, &req); err != nil {
		log.Error().Err(err).Str("body", string(bodyBytes)).Msg("Failed to decode JSON body")
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if strings.TrimSpace(req.Command) == "" {
		http.Error(w, "Command is required", http.StatusBadRequest)
		return
	}
	if strings.TrimSpace(req.ApprovalID) == "" {
		http.Error(w, "approval_id is required", http.StatusBadRequest)
		return
	}

	approvalTargetType, approvalTargetID, targetErr := normalizeRunCommandApprovalTarget(req)
	if targetErr != nil {
		http.Error(w, targetErr.Error(), http.StatusBadRequest)
		return
	}

	store := approval.GetStore()
	if store == nil {
		http.Error(w, "Approval store not initialized", http.StatusServiceUnavailable)
		return
	}

	orgID := approval.NormalizeOrgID(GetOrgID(r.Context()))
	approvalReq, ok := store.GetApproval(req.ApprovalID)
	if !ok || !approval.BelongsToOrg(approvalReq, orgID) {
		http.Error(w, "Approval request not found", http.StatusNotFound)
		return
	}
	if _, err := store.ConsumeApproval(req.ApprovalID, req.Command, approvalTargetType, approvalTargetID); err != nil {
		log.Error().Err(err).Str("approval_id", req.ApprovalID).Msg("Failed to consume approval")
		http.Error(w, "Failed to consume approval", http.StatusConflict)
		return
	}

	log.Info().
		Str("command", req.Command).
		Str("approval_id", req.ApprovalID).
		Str("target_type", approvalTargetType).
		Str("target_id", approvalTargetID).
		Bool("run_on_host", req.RunOnHost).
		Str("target_host", req.TargetHost).
		Msg("Executing approved command")

	// Execute with timeout (5 minutes for long-running commands)
	ctx, cancel := context.WithTimeout(r.Context(), 300*time.Second)
	defer cancel()

	resp, err := h.GetAIService(r.Context()).RunCommand(ctx, ai.RunCommandRequest{
		Command:    req.Command,
		ApprovalID: req.ApprovalID,
		TargetType: approvalTargetType,
		TargetID:   approvalTargetID,
		RunOnHost:  req.RunOnHost,
		VMID:       req.VMID,
		TargetHost: strings.ToLower(strings.TrimSpace(req.TargetHost)),
	})

	if err != nil {
		log.Error().Err(err).Msg("Failed to execute command")
		http.Error(w, "Failed to execute command", http.StatusInternalServerError)
		return
	}

	if err := utils.WriteJSONResponse(w, resp); err != nil {
		log.Error().Err(err).Msg("Failed to write run command response")
	}
}

func normalizeRunCommandApprovalTarget(req AIRunCommandRequest) (string, string, error) {
	targetType := normalizeAIExecuteTargetType(req.TargetType)
	targetID := strings.TrimSpace(req.TargetID)
	targetHost := strings.ToLower(strings.TrimSpace(req.TargetHost))

	allowedTargetTypes := map[string]struct{}{
		"agent":            {},
		"system-container": {},
		"vm":               {},
	}

	if req.RunOnHost {
		targetType = "agent"
		if targetHost == "" {
			return "", "", errors.New("target_host is required when run_on_host is true")
		}
		targetID = targetHost
	}

	if targetType == "" {
		targetType = "agent"
	}
	if _, ok := allowedTargetTypes[targetType]; !ok {
		return "", "", fmt.Errorf("unsupported target_type %q (allowed: agent, system-container, vm)", targetType)
	}

	if (targetType == "system-container" || targetType == "vm") && strings.TrimSpace(req.VMID) != "" {
		targetID = strings.TrimSpace(req.VMID)
	}

	if targetType == "agent" {
		if targetID == "" {
			targetID = targetHost
		}
		if targetID == "" {
			return "", "", errors.New("target_id or target_host is required for agent commands")
		}
		targetID = strings.ToLower(targetID)
	}

	if targetID == "" {
		return "", "", fmt.Errorf("target_id is required for target_type '%s'", targetType)
	}

	return targetType, targetID, nil
}

// maxGuestIDLength is the maximum allowed length for guest_id across all
// knowledge endpoints, preventing abuse via oversized identifiers.
const maxGuestIDLength = 256

// maxImportNotes is the maximum number of notes allowed in a single import
// request. This prevents abuse even within the 1MB body size limit.
const maxImportNotes = 500

// sanitizeFilenameComponent strips characters unsafe for Content-Disposition
// filenames. Only alphanumeric, hyphens, underscores, and dots are kept.
func sanitizeFilenameComponent(s string) string {
	var b strings.Builder
	b.Grow(len(s))
	for _, c := range s {
		if (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '-' || c == '_' || c == '.' {
			b.WriteRune(c)
		}
	}
	result := b.String()
	if result == "" {
		return "export"
	}
	return result
}

// HandleGetGuestKnowledge returns all notes for a guest
func (h *AISettingsHandler) HandleGetGuestKnowledge(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	guestID := r.URL.Query().Get("guest_id")
	if guestID == "" {
		http.Error(w, "guest_id is required", http.StatusBadRequest)
		return
	}
	if len(guestID) > maxGuestIDLength {
		http.Error(w, "guest_id too long", http.StatusBadRequest)
		return
	}

	knowledge, err := h.GetAIService(r.Context()).GetGuestKnowledge(guestID)
	if err != nil {
		http.Error(w, sanitizeErrorForClient(err, "Failed to get knowledge"), http.StatusInternalServerError)
		return
	}

	if err := utils.WriteJSONResponse(w, knowledge); err != nil {
		log.Error().Err(err).Msg("Failed to write knowledge response")
	}
}

// HandleSaveGuestNote saves a note for a guest
func (h *AISettingsHandler) HandleSaveGuestNote(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	r.Body = http.MaxBytesReader(w, r.Body, 64*1024) // 64KB max

	var req struct {
		GuestID   string `json:"guest_id"`
		GuestName string `json:"guest_name"`
		GuestType string `json:"guest_type"`
		Category  string `json:"category"`
		Title     string `json:"title"`
		Content   string `json:"content"`
	}

	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.GuestID == "" || req.Category == "" || req.Title == "" || req.Content == "" {
		http.Error(w, "guest_id, category, title, and content are required", http.StatusBadRequest)
		return
	}
	if len(req.GuestID) > maxGuestIDLength {
		http.Error(w, "guest_id too long", http.StatusBadRequest)
		return
	}
	if len(req.Category) > 128 {
		http.Error(w, "category too long", http.StatusBadRequest)
		return
	}
	if len(req.Title) > 1024 {
		http.Error(w, "title too long", http.StatusBadRequest)
		return
	}
	if len(req.Content) > 32*1024 {
		http.Error(w, "content too long", http.StatusBadRequest)
		return
	}

	if err := h.GetAIService(r.Context()).SaveGuestNote(req.GuestID, req.GuestName, req.GuestType, req.Category, req.Title, req.Content); err != nil {
		http.Error(w, sanitizeErrorForClient(err, "Failed to save note"), http.StatusInternalServerError)
		return
	}

	w.WriteHeader(http.StatusOK)
	w.Write([]byte(`{"success": true}`))
}

// HandleDeleteGuestNote deletes a note from a guest
func (h *AISettingsHandler) HandleDeleteGuestNote(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	r.Body = http.MaxBytesReader(w, r.Body, 4*1024) // 4KB max — only needs guest_id + note_id

	var req struct {
		GuestID string `json:"guest_id"`
		NoteID  string `json:"note_id"`
	}

	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.GuestID == "" || req.NoteID == "" {
		http.Error(w, "guest_id and note_id are required", http.StatusBadRequest)
		return
	}
	if len(req.GuestID) > maxGuestIDLength {
		http.Error(w, "guest_id too long", http.StatusBadRequest)
		return
	}
	if len(req.NoteID) > maxGuestIDLength {
		http.Error(w, "note_id too long", http.StatusBadRequest)
		return
	}

	if err := h.GetAIService(r.Context()).DeleteGuestNote(req.GuestID, req.NoteID); err != nil {
		if strings.Contains(err.Error(), "not found") {
			http.Error(w, "Note not found", http.StatusNotFound)
			return
		}
		http.Error(w, sanitizeErrorForClient(err, "Failed to delete note"), http.StatusInternalServerError)
		return
	}

	w.WriteHeader(http.StatusOK)
	w.Write([]byte(`{"success": true}`))
}

// HandleExportGuestKnowledge exports all knowledge for a guest as JSON
func (h *AISettingsHandler) HandleExportGuestKnowledge(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	guestID := r.URL.Query().Get("guest_id")
	if guestID == "" {
		http.Error(w, "guest_id is required", http.StatusBadRequest)
		return
	}
	if len(guestID) > maxGuestIDLength {
		http.Error(w, "guest_id too long", http.StatusBadRequest)
		return
	}

	knowledge, err := h.GetAIService(r.Context()).GetGuestKnowledge(guestID)
	if err != nil {
		http.Error(w, sanitizeErrorForClient(err, "Failed to get knowledge"), http.StatusInternalServerError)
		return
	}

	// Sanitize guestID for Content-Disposition header to prevent header injection.
	// Only allow alphanumeric, hyphens, underscores, and dots.
	safeID := sanitizeFilenameComponent(guestID)

	// Set headers for file download
	w.Header().Set("Content-Type", "application/json")
	w.Header().Set("Content-Disposition", "attachment; filename=\"pulse-notes-"+safeID+".json\"")

	if err := json.NewEncoder(w).Encode(knowledge); err != nil {
		log.Error().Err(err).Msg("Failed to encode knowledge export")
	}
}

// HandleImportGuestKnowledge imports knowledge from a JSON export
func (h *AISettingsHandler) HandleImportGuestKnowledge(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Limit request body size to 1MB
	r.Body = http.MaxBytesReader(w, r.Body, 1024*1024)

	var importData struct {
		GuestID   string `json:"guest_id"`
		GuestName string `json:"guest_name"`
		GuestType string `json:"guest_type"`
		Notes     []struct {
			Category string `json:"category"`
			Title    string `json:"title"`
			Content  string `json:"content"`
		} `json:"notes"`
		Merge bool `json:"merge"` // If true, add to existing notes; if false, replace
	}

	if err := json.NewDecoder(r.Body).Decode(&importData); err != nil {
		http.Error(w, "Invalid import data", http.StatusBadRequest)
		return
	}

	if importData.GuestID == "" {
		http.Error(w, "guest_id is required in import data", http.StatusBadRequest)
		return
	}
	if len(importData.GuestID) > maxGuestIDLength {
		http.Error(w, "guest_id too long", http.StatusBadRequest)
		return
	}

	if len(importData.Notes) == 0 {
		http.Error(w, "No notes to import", http.StatusBadRequest)
		return
	}
	if len(importData.Notes) > maxImportNotes {
		http.Error(w, fmt.Sprintf("Too many notes: %d exceeds maximum of %d", len(importData.Notes), maxImportNotes), http.StatusBadRequest)
		return
	}

	// Pre-filter valid notes before deleting in replace mode to avoid data loss
	// when all incoming notes fail validation.
	isValidNote := func(n struct {
		Category string `json:"category"`
		Title    string `json:"title"`
		Content  string `json:"content"`
	}) bool {
		if n.Category == "" || n.Title == "" || n.Content == "" {
			return false
		}
		if len(n.Category) > 128 || len(n.Title) > 1024 || len(n.Content) > 32*1024 {
			return false
		}
		return true
	}

	validCount := 0
	for _, note := range importData.Notes {
		if isValidNote(note) {
			validCount++
		}
	}
	if validCount == 0 {
		http.Error(w, "No valid notes to import", http.StatusBadRequest)
		return
	}

	// If not merging, we need to delete existing notes first
	if !importData.Merge {
		existing, err := h.GetAIService(r.Context()).GetGuestKnowledge(importData.GuestID)
		if err == nil && existing != nil {
			for _, note := range existing.Notes {
				_ = h.GetAIService(r.Context()).DeleteGuestNote(importData.GuestID, note.ID)
			}
		}
	}

	// Import each note
	imported := 0
	for _, note := range importData.Notes {
		if !isValidNote(note) {
			continue
		}
		if err := h.GetAIService(r.Context()).SaveGuestNote(
			importData.GuestID,
			importData.GuestName,
			importData.GuestType,
			note.Category,
			note.Title,
			note.Content,
		); err != nil {
			log.Warn().Err(err).Str("title", note.Title).Msg("Failed to import note")
			continue
		}
		imported++
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]interface{}{
		"success":  true,
		"imported": imported,
		"total":    len(importData.Notes),
	})
}

// HandleClearGuestKnowledge deletes all notes for a guest
func (h *AISettingsHandler) HandleClearGuestKnowledge(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	r.Body = http.MaxBytesReader(w, r.Body, 4*1024) // 4KB max — only needs guest_id + confirm

	var req struct {
		GuestID string `json:"guest_id"`
		Confirm bool   `json:"confirm"`
	}

	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.GuestID == "" {
		http.Error(w, "guest_id is required", http.StatusBadRequest)
		return
	}
	if len(req.GuestID) > maxGuestIDLength {
		http.Error(w, "guest_id too long", http.StatusBadRequest)
		return
	}

	if !req.Confirm {
		http.Error(w, "confirm must be true to clear all notes", http.StatusBadRequest)
		return
	}

	// Get existing knowledge and delete all notes
	existing, err := h.GetAIService(r.Context()).GetGuestKnowledge(req.GuestID)
	if err != nil {
		http.Error(w, sanitizeErrorForClient(err, "Failed to get knowledge"), http.StatusInternalServerError)
		return
	}

	deleted := 0
	for _, note := range existing.Notes {
		if err := h.GetAIService(r.Context()).DeleteGuestNote(req.GuestID, note.ID); err != nil {
			log.Warn().Err(err).Str("note_id", note.ID).Msg("Failed to delete note")
			continue
		}
		deleted++
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]interface{}{
		"success": true,
		"deleted": deleted,
	})
}

// HandleDebugContext returns the system prompt and context that would be sent to the AI
// This is useful for debugging when the AI gives incorrect information
func (h *AISettingsHandler) HandleDebugContext(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Build a sample request to see what context would be sent
	req := ai.ExecuteRequest{
		Prompt:     "Debug context request",
		TargetType: r.URL.Query().Get("target_type"),
		TargetID:   r.URL.Query().Get("target_id"),
	}

	// Get the debug context from the service
	debugInfo := h.GetAIService(r.Context()).GetDebugContext(req)

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(debugInfo)
}

// HandleGetConnectedAgents returns the list of agents currently connected via WebSocket
// This is useful for debugging when AI can't reach certain agents
func (h *AISettingsHandler) HandleGetConnectedAgents(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	type agentInfo struct {
		AgentID     string `json:"agent_id"`
		Hostname    string `json:"hostname"`
		Version     string `json:"version"`
		Platform    string `json:"platform"`
		ConnectedAt string `json:"connected_at"`
	}

	var agents []agentInfo
	if h.agentServer != nil {
		for _, a := range h.agentServer.GetConnectedAgents() {
			agents = append(agents, agentInfo{
				AgentID:     a.AgentID,
				Hostname:    a.Hostname,
				Version:     a.Version,
				Platform:    a.Platform,
				ConnectedAt: a.ConnectedAt.Format(time.RFC3339),
			})
		}
	}

	response := map[string]interface{}{
		"count":  len(agents),
		"agents": agents,
		"note":   "Agents connect via WebSocket to /api/agent/ws. If an agent is missing, check that pulse-agent is installed and can reach the Pulse server.",
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(response)
}

// AIInvestigateAlertRequest is the request body for POST /api/ai/investigate-alert
type AIInvestigateAlertRequest struct {
	AlertIdentifier string  `json:"alertIdentifier"`
	ResourceID      string  `json:"resource_id"`
	ResourceName    string  `json:"resource_name"`
	ResourceType    string  `json:"resource_type"` // canonical v6 resource type
	AlertType       string  `json:"alert_type"`    // cpu, memory, disk, offline, etc.
	Level           string  `json:"level"`         // warning, critical
	Value           float64 `json:"value"`
	Threshold       float64 `json:"threshold"`
	Message         string  `json:"message"`
	Duration        string  `json:"duration"` // How long the alert has been active
	Node            string  `json:"node,omitempty"`
	VMID            int     `json:"vmid,omitempty"`
}

func (r AIInvestigateAlertRequest) alertIdentifier() string {
	return strings.TrimSpace(r.AlertIdentifier)
}

func normalizeInvestigateAlertTargetType(raw string) (string, error) {
	resourceType := normalizeAITransportResourceType(raw)
	switch resourceType {
	case "vm":
		return "vm", nil
	case "system-container", "oci-container":
		return "system-container", nil
	case "agent", "node", "docker-host", "app-container", "pod", "k8s-node", "k8s-cluster", "k8s-deployment", "k8s-service", "storage", "disk", "pbs", "pmg", "proxmox", "ceph":
		return "agent", nil
	case "":
		return "", errors.New("resource_type is required")
	default:
		return "", fmt.Errorf("unsupported resource_type %q (allowed: vm, system-container, oci-container, app-container, pod, agent, node, docker-host, k8s-cluster, k8s-node, k8s-deployment, k8s-service, storage, disk, pbs, pmg, proxmox, ceph)", raw)
	}
}

// HandleInvestigateAlert investigates an alert using AI (POST /api/ai/investigate-alert)
// This is a dedicated endpoint for one-click alert investigation from the UI
func (h *AISettingsHandler) HandleInvestigateAlert(w http.ResponseWriter, r *http.Request) {
	// Handle CORS
	h.setSSECORSHeaders(w, r)

	if r.Method == http.MethodOptions {
		w.WriteHeader(http.StatusOK)
		return
	}

	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	// Check if AI is enabled
	if !h.GetAIService(r.Context()).IsEnabled() {
		http.Error(w, "Pulse Assistant is not enabled or configured", http.StatusBadRequest)
		return
	}

	// Parse request
	r.Body = http.MaxBytesReader(w, r.Body, 16*1024)
	var req AIInvestigateAlertRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	// Build investigation prompt
	alertIdentifier := req.alertIdentifier()
	investigationPrompt := ai.GenerateAlertInvestigationPrompt(ai.AlertInvestigationRequest{
		AlertIdentifier: alertIdentifier,
		ResourceID:      req.ResourceID,
		ResourceName:    req.ResourceName,
		ResourceType:    req.ResourceType,
		AlertType:       req.AlertType,
		Level:           req.Level,
		Value:           req.Value,
		Threshold:       req.Threshold,
		Message:         req.Message,
		Duration:        req.Duration,
		Node:            req.Node,
		VMID:            req.VMID,
	})

	log.Info().
		Str("alert_identifier", alertIdentifier).
		Str("resource", req.ResourceName).
		Str("type", req.AlertType).
		Msg("AI alert investigation started")

	targetType, err := normalizeInvestigateAlertTargetType(req.ResourceType)
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	resourceType := strings.ToLower(strings.TrimSpace(req.ResourceType))
	targetID := strings.TrimSpace(req.ResourceID)
	if targetType == "vm" || targetType == "system-container" {
		if req.VMID > 0 {
			targetID = strconv.Itoa(req.VMID)
		}
	} else if targetType == "agent" {
		if node := strings.ToLower(strings.TrimSpace(req.Node)); node != "" {
			targetID = node
		} else if resourceType != "app-container" {
			// Keep explicit host-like IDs for node/agent resources.
			targetID = strings.ToLower(strings.TrimSpace(req.ResourceID))
		} else {
			// app-container IDs are container-scoped, not host routing IDs.
			targetID = ""
		}
	}

	// Set up SSE streaming
	w.Header().Set("Content-Type", "text/event-stream")
	w.Header().Set("Cache-Control", "no-cache")
	w.Header().Set("Connection", "keep-alive")
	w.Header().Set("X-Accel-Buffering", "no")
	w.Header().Set("Transfer-Encoding", "identity")

	flusher, ok := w.(http.Flusher)
	if !ok {
		http.Error(w, "Streaming not supported", http.StatusInternalServerError)
		return
	}

	// Disable write/read deadlines for SSE
	rc := http.NewResponseController(w)
	_ = rc.SetWriteDeadline(time.Time{})
	_ = rc.SetReadDeadline(time.Time{})

	flusher.Flush()

	// Create context with timeout
	ctx, cancel := context.WithTimeout(context.Background(), 300*time.Second)
	defer cancel()

	// Heartbeat routine
	heartbeatDone := make(chan struct{})
	var clientDisconnected atomic.Bool
	go func() {
		ticker := time.NewTicker(5 * time.Second)
		defer ticker.Stop()
		for {
			select {
			case <-ticker.C:
				_ = rc.SetWriteDeadline(time.Now().Add(10 * time.Second))
				_, err := w.Write([]byte(": heartbeat\n\n"))
				if err != nil {
					clientDisconnected.Store(true)
					return
				}
				flusher.Flush()
			case <-heartbeatDone:
				return
			}
		}
	}()
	defer close(heartbeatDone)

	safeWrite := func(data []byte) bool {
		if clientDisconnected.Load() {
			return false
		}
		_ = rc.SetWriteDeadline(time.Now().Add(10 * time.Second))
		_, err := w.Write(data)
		if err != nil {
			clientDisconnected.Store(true)
			return false
		}
		flusher.Flush()
		return true
	}

	// Stream callback
	callback := func(event ai.StreamEvent) {
		if event.Type == "done" {
			return
		}
		data, err := json.Marshal(event)
		if err != nil {
			return
		}
		safeWrite([]byte("data: " + string(data) + "\n\n"))
	}

	// Execute with streaming
	defer func() {
		if !clientDisconnected.Load() {
			doneEvent := ai.StreamEvent{Type: "done"}
			data, _ := json.Marshal(doneEvent)
			safeWrite([]byte("data: " + string(data) + "\n\n"))
		}
	}()

	resp, err := h.GetAIService(r.Context()).ExecuteStream(ctx, ai.ExecuteRequest{
		Prompt:     investigationPrompt,
		TargetType: targetType,
		TargetID:   targetID,
		Context: map[string]interface{}{
			"alertIdentifier": alertIdentifier,
			"alertType":       req.AlertType,
			"alertLevel":      req.Level,
			"alertMessage":    req.Message,
			"guestName":       req.ResourceName,
			"node":            req.Node,
		},
	}, callback)

	if err != nil {
		log.Error().Err(err).Msg("AI alert investigation failed")
		errEvent := ai.StreamEvent{Type: "error", Data: map[string]string{"message": "Alert investigation failed. Please try again."}}
		data, _ := json.Marshal(errEvent)
		safeWrite([]byte("data: " + string(data) + "\n\n"))
		return
	}

	// Send completion event
	finalEvent := aiExecuteStreamCompleteEvent{
		Type:         "complete",
		Model:        resp.Model,
		InputTokens:  resp.InputTokens,
		OutputTokens: resp.OutputTokens,
		ToolCalls:    resp.ToolCalls,
	}.NormalizeCollections()
	data, _ := json.Marshal(finalEvent)
	safeWrite([]byte("data: " + string(data) + "\n\n"))

	if alertIdentifier != "" {
		h.GetAIService(r.Context()).RecordIncidentAnalysis(alertIdentifier, "Pulse Assistant alert investigation completed", map[string]interface{}{
			"model":         resp.Model,
			"tool_calls":    len(resp.ToolCalls),
			"input_tokens":  resp.InputTokens,
			"output_tokens": resp.OutputTokens,
		})
	}

	log.Info().
		Str("alert_identifier", alertIdentifier).
		Str("model", resp.Model).
		Int("tool_calls", len(resp.ToolCalls)).
		Msg("AI alert investigation completed")

	if alertIdentifier != "" {
		h.GetAIService(r.Context()).RecordIncidentAnalysis(alertIdentifier, "Pulse Assistant investigation completed", map[string]interface{}{
			"model":         resp.Model,
			"input_tokens":  resp.InputTokens,
			"output_tokens": resp.OutputTokens,
			"tool_calls":    len(resp.ToolCalls),
		})
	}
}

// SetAlertProvider sets the alert provider for AI context
// Sets on both the default-org service and all tenant services to ensure multi-tenant support.
func (h *AISettingsHandler) SetAlertProvider(ap ai.AlertProvider) {
	h.defaultAIService.SetAlertProvider(ap)

	h.aiServicesMu.RLock()
	defer h.aiServicesMu.RUnlock()
	for _, svc := range h.aiServices {
		svc.SetAlertProvider(ap)
	}
}

// SetAlertResolver sets the alert resolver for AI Patrol autonomous alert management
// Sets on both the default-org service and all tenant services to ensure multi-tenant support.
func (h *AISettingsHandler) SetAlertResolver(resolver ai.AlertResolver) {
	h.defaultAIService.SetAlertResolver(resolver)

	h.aiServicesMu.RLock()
	defer h.aiServicesMu.RUnlock()
	for _, svc := range h.aiServices {
		svc.SetAlertResolver(resolver)
	}
}

// oauthSessions stores active OAuth sessions (state -> session)
// In production, consider using a more robust session store with expiry
type oauthSessionBinding struct {
	session *providers.OAuthSession
	orgID   string
}

const oauthSessionTTL = 15 * time.Minute

var oauthSessions = make(map[string]*oauthSessionBinding)
var oauthSessionsMu sync.Mutex
var exchangeOAuthCodeForTokens = providers.ExchangeCodeForTokens
var createAPIKeyFromOAuth = providers.CreateAPIKeyFromOAuth

func storeOAuthSession(session *providers.OAuthSession, orgID string) {
	oauthSessionsMu.Lock()
	defer oauthSessionsMu.Unlock()

	cutoff := time.Now().Add(-oauthSessionTTL)
	for state, binding := range oauthSessions {
		if binding == nil || binding.session == nil || binding.session.CreatedAt.Before(cutoff) {
			delete(oauthSessions, state)
		}
	}

	oauthSessions[session.State] = &oauthSessionBinding{
		session: session,
		orgID:   orgID,
	}
}

func consumeOAuthSession(state string) (*oauthSessionBinding, bool) {
	oauthSessionsMu.Lock()
	binding, ok := oauthSessions[state]
	if ok {
		delete(oauthSessions, state) // One-time use
	}
	oauthSessionsMu.Unlock()

	if !ok || binding == nil || binding.session == nil {
		return nil, false
	}
	if time.Since(binding.session.CreatedAt) > oauthSessionTTL {
		return nil, false
	}
	if !isValidOrganizationID(binding.orgID) {
		return nil, false
	}

	return binding, true
}

// HandleOAuthStart initiates the OAuth flow for Claude Pro/Max subscription (POST /api/ai/oauth/start)
// Returns an authorization URL for the user to visit manually
func (h *AISettingsHandler) HandleOAuthStart(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet && r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Generate OAuth session (redirect URI is not used since we use Anthropic's callback)
	session, err := providers.GenerateOAuthSession("")
	if err != nil {
		log.Error().Err(err).Msg("Failed to generate OAuth session")
		http.Error(w, "Failed to start OAuth flow", http.StatusInternalServerError)
		return
	}

	orgID := strings.TrimSpace(GetOrgID(r.Context()))
	if !isValidOrganizationID(orgID) {
		orgID = "default"
	}

	// Store session, bound to the tenant context that initiated OAuth.
	storeOAuthSession(session, orgID)

	// Get authorization URL
	authURL := providers.GetAuthorizationURL(session)

	log.Info().
		Str("state", safePrefixForLog(session.State, 8)+"...").
		Str("org_id", orgID).
		Str("verifier_len", fmt.Sprintf("%d", len(session.CodeVerifier))).
		Str("auth_url", authURL).
		Msg("Starting Claude OAuth flow - user must visit URL and paste code back")

	// Return the URL for the user to visit
	response := map[string]string{
		"auth_url": authURL,
		"state":    session.State,
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write OAuth start response")
	}
}

// HandleOAuthExchange exchanges a manually-pasted authorization code for tokens (POST /api/ai/oauth/exchange)
func (h *AISettingsHandler) HandleOAuthExchange(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Limit body size — OAuth codes are short strings, 4 KB is plenty.
	r.Body = http.MaxBytesReader(w, r.Body, 4*1024)

	// Parse request body
	var req struct {
		Code  string `json:"code"`
		State string `json:"state"`
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.Code == "" || req.State == "" {
		http.Error(w, "Missing code or state", http.StatusBadRequest)
		return
	}

	// Trim any whitespace from the code (user might have copied extra spaces)
	code := strings.TrimSpace(req.Code)

	// Anthropic's callback page displays the code as "code#state"
	// We need to extract just the code part before the #
	if idx := strings.Index(code, "#"); idx > 0 {
		code = code[:idx]
	}

	log.Debug().
		Str("code_len", fmt.Sprintf("%d", len(code))).
		Str("code_prefix", code[:min(20, len(code))]).
		Str("state_prefix", req.State[:min(8, len(req.State))]).
		Msg("Processing OAuth code exchange")

	// Consume one-time OAuth session and enforce TTL.
	binding, ok := consumeOAuthSession(req.State)

	if !ok {
		log.Error().Str("state", req.State[:min(8, len(req.State))]+"...").Msg("OAuth exchange with unknown state")
		http.Error(w, "Invalid or expired session. Please start the OAuth flow again.", http.StatusBadRequest)
		return
	}
	orgID := binding.orgID
	oauthCtx := context.WithValue(r.Context(), OrgIDContextKey, orgID)

	// Exchange code for tokens
	ctx, cancel := context.WithTimeout(oauthCtx, 30*time.Second)
	defer cancel()

	tokens, err := exchangeOAuthCodeForTokens(ctx, code, binding.session)
	if err != nil {
		log.Error().Err(err).Msg("Failed to exchange OAuth code for tokens")
		http.Error(w, "Failed to exchange authorization code", http.StatusBadRequest)
		return
	}

	// Try to create an API key from the OAuth access token
	// Team/Enterprise users get org:create_api_key scope and can create API keys
	// Pro/Max users don't have this scope and will use OAuth tokens directly
	apiKey, err := createAPIKeyFromOAuth(ctx, tokens.AccessToken)
	if err != nil {
		// Check if it's a permission error (Pro/Max users)
		if strings.Contains(err.Error(), "org:create_api_key") || strings.Contains(err.Error(), "403") {
			log.Info().Msg("User doesn't have org:create_api_key permission - will use OAuth tokens directly")
			// This is fine for Pro/Max users - they'll use OAuth tokens
		} else {
			log.Error().Err(err).Msg("Failed to create API key from OAuth token")
			http.Error(w, "Failed to create API key", http.StatusBadRequest)
			return
		}
	}

	if apiKey != "" {
		log.Info().Msg("Successfully created API key from OAuth - using subscription-based billing")
	}

	// Load existing settings
	persistence := h.getPersistence(oauthCtx)
	if persistence == nil {
		http.Error(w, "Tenant persistence unavailable", http.StatusInternalServerError)
		return
	}
	settings, err := h.loadAIConfig(oauthCtx)
	if err != nil {
		log.Error().Err(err).Msg("Failed to load Pulse Assistant settings for OAuth")
		settings = config.NewDefaultAIConfig()
	}
	if settings == nil {
		settings = config.NewDefaultAIConfig()
	}

	// Update settings
	settings.AuthMethod = config.AuthMethodOAuth
	settings.OAuthAccessToken = tokens.AccessToken
	settings.OAuthRefreshToken = tokens.RefreshToken
	settings.OAuthExpiresAt = tokens.ExpiresAt
	settings.Enabled = true

	// If we got an API key, use it; otherwise use OAuth tokens directly
	if apiKey != "" {
		settings.AnthropicAPIKey = apiKey
	} else {
		// Pro/Max users: clear any old API key, will use OAuth client
		settings.ClearAPIKey()
	}

	// Save settings
	if err := persistence.SaveAIConfig(*settings); err != nil {
		log.Error().Err(err).Msg("Failed to save OAuth tokens")
		http.Error(w, "Failed to save OAuth credentials", http.StatusInternalServerError)
		return
	}

	// Reload the AI service with new settings
	if svc := h.GetAIService(oauthCtx); svc != nil {
		if err := svc.Reload(); err != nil {
			log.Warn().Err(err).Msg("Failed to reload AI service after OAuth setup")
		}
	}

	log.Info().Msg("Claude OAuth authentication successful")

	response := map[string]interface{}{
		"success": true,
		"message": "Successfully connected to Claude with your subscription",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write OAuth exchange response")
	}
}

// HandleOAuthCallback handles the OAuth callback (GET /api/ai/oauth/callback)
// This is kept for backwards compatibility but mainly serves as a fallback
func (h *AISettingsHandler) HandleOAuthCallback(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Get code and state from query params
	code := r.URL.Query().Get("code")
	state := r.URL.Query().Get("state")
	errParam := r.URL.Query().Get("error")
	errDesc := r.URL.Query().Get("error_description")

	// Check for OAuth error
	if errParam != "" {
		log.Error().
			Str("error", errParam).
			Str("description", errDesc).
			Msg("OAuth authorization failed")
		// Redirect to settings page with error (URL-encode to prevent injection)
		http.Redirect(w, r, "/settings?ai_oauth_error="+url.QueryEscape(errParam), http.StatusTemporaryRedirect)
		return
	}

	if code == "" || state == "" {
		log.Error().Msg("OAuth callback missing code or state")
		http.Redirect(w, r, "/settings?ai_oauth_error=missing_params", http.StatusTemporaryRedirect)
		return
	}

	// Consume one-time OAuth session and enforce TTL.
	binding, ok := consumeOAuthSession(state)

	if !ok {
		log.Error().Str("state", state).Msg("OAuth callback with unknown state")
		http.Redirect(w, r, "/settings?ai_oauth_error=invalid_state", http.StatusTemporaryRedirect)
		return
	}
	orgID := binding.orgID
	oauthCtx := context.WithValue(r.Context(), OrgIDContextKey, orgID)

	// Exchange code for tokens
	ctx, cancel := context.WithTimeout(oauthCtx, 30*time.Second)
	defer cancel()

	tokens, err := exchangeOAuthCodeForTokens(ctx, code, binding.session)
	if err != nil {
		log.Error().Err(err).Msg("Failed to exchange OAuth code for tokens")
		http.Redirect(w, r, "/settings?ai_oauth_error=token_exchange_failed", http.StatusTemporaryRedirect)
		return
	}

	// Load existing settings
	persistence := h.getPersistence(oauthCtx)
	if persistence == nil {
		http.Redirect(w, r, "/settings?ai_oauth_error=save_failed", http.StatusTemporaryRedirect)
		return
	}
	settings, err := h.loadAIConfig(oauthCtx)
	if err != nil {
		log.Error().Err(err).Msg("Failed to load Pulse Assistant settings for OAuth")
		settings = config.NewDefaultAIConfig()
	}
	if settings == nil {
		settings = config.NewDefaultAIConfig()
	}

	// Update settings with OAuth tokens
	settings.AuthMethod = config.AuthMethodOAuth
	settings.OAuthAccessToken = tokens.AccessToken
	settings.OAuthRefreshToken = tokens.RefreshToken
	settings.OAuthExpiresAt = tokens.ExpiresAt
	settings.Enabled = true
	// Clear API key since we're using OAuth
	settings.ClearAPIKey()

	// Save settings
	if err := persistence.SaveAIConfig(*settings); err != nil {
		log.Error().Err(err).Msg("Failed to save OAuth tokens")
		http.Redirect(w, r, "/settings?ai_oauth_error=save_failed", http.StatusTemporaryRedirect)
		return
	}

	// Reload the AI service with new settings
	if svc := h.GetAIService(oauthCtx); svc != nil {
		if err := svc.Reload(); err != nil {
			log.Warn().Err(err).Msg("Failed to reload AI service after OAuth setup")
		}
	}

	log.Info().Msg("Claude OAuth authentication successful")

	// Redirect to settings page with success
	http.Redirect(w, r, "/settings?ai_oauth_success=true", http.StatusTemporaryRedirect)
}

// HandleOAuthDisconnect disconnects OAuth and clears tokens (POST /api/ai/oauth/disconnect)
func (h *AISettingsHandler) HandleOAuthDisconnect(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require admin authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	// Load existing settings
	persistence := h.getPersistence(r.Context())
	if persistence == nil {
		log.Error().Msg("No persistence available for OAuth disconnect")
		http.Error(w, "Failed to load settings", http.StatusInternalServerError)
		return
	}
	settings, err := h.loadAIConfig(r.Context())
	if err != nil {
		log.Error().Err(err).Msg("Failed to load Pulse Assistant settings for OAuth disconnect")
		http.Error(w, "Failed to load settings", http.StatusInternalServerError)
		return
	}
	if settings == nil {
		settings = config.NewDefaultAIConfig()
	}

	// Clear OAuth tokens
	settings.ClearOAuthTokens()
	settings.AuthMethod = config.AuthMethodAPIKey

	// Save settings
	if err := persistence.SaveAIConfig(*settings); err != nil {
		log.Error().Err(err).Msg("Failed to save settings after OAuth disconnect")
		http.Error(w, "Failed to save settings", http.StatusInternalServerError)
		return
	}

	// Reload the AI service
	if svc := h.GetAIService(r.Context()); svc != nil {
		if err := svc.Reload(); err != nil {
			log.Warn().Err(err).Msg("Failed to reload AI service after OAuth disconnect")
		}
	}

	log.Info().Msg("Claude OAuth disconnected")

	response := map[string]interface{}{
		"success": true,
		"message": "OAuth disconnected successfully",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write OAuth disconnect response")
	}
}

// PatrolStatusResponse is the response for GET /api/ai/patrol/status
type PatrolStatusResponse struct {
	RuntimeState     ai.PatrolRuntimeState `json:"runtime_state"`
	Running          bool                  `json:"running"`
	Enabled          bool                  `json:"enabled"`
	LastPatrolAt     *time.Time            `json:"last_patrol_at,omitempty"`
	LastActivityAt   *time.Time            `json:"last_activity_at,omitempty"`
	TriggerStatus    *ai.TriggerStatus     `json:"trigger_status,omitempty"`
	NextPatrolAt     *time.Time            `json:"next_patrol_at,omitempty"`
	LastDurationMs   int64                 `json:"last_duration_ms"`
	ResourcesChecked int                   `json:"resources_checked"`
	FindingsCount    int                   `json:"findings_count"`
	ErrorCount       int                   `json:"error_count"`
	Healthy          bool                  `json:"healthy"`
	IntervalMs       int64                 `json:"interval_ms"` // Patrol interval in milliseconds
	FixedCount       int                   `json:"fixed_count"` // Number of issues auto-fixed by Patrol
	BlockedReason    string                `json:"blocked_reason,omitempty"`
	BlockedAt        *time.Time            `json:"blocked_at,omitempty"`
	// Quickstart credit info for Patrol quickstart mode
	QuickstartCreditsRemaining int  `json:"quickstart_credits_remaining"`
	QuickstartCreditsTotal     int  `json:"quickstart_credits_total"`
	UsingQuickstart            bool `json:"using_quickstart"`
	// License status for Pro feature gating
	LicenseRequired bool   `json:"license_required"` // True if Pro license needed for full features
	LicenseStatus   string `json:"license_status"`   // "active", "expired", "grace_period", "none"
	UpgradeURL      string `json:"upgrade_url,omitempty"`
	Summary         struct {
		Critical int `json:"critical"`
		Warning  int `json:"warning"`
		Watch    int `json:"watch"`
		Info     int `json:"info"`
	} `json:"summary"`
}

func (h *AISettingsHandler) getPatrolService(ctx context.Context) *ai.PatrolService {
	aiService := h.GetAIService(ctx)
	if aiService == nil {
		return nil
	}
	return aiService.GetPatrolService()
}

func writePatrolServiceUnavailableResponse(w http.ResponseWriter) {
	writeErrorResponse(w, http.StatusServiceUnavailable, "service_unavailable", "Pulse Patrol service not available", nil)
}

// HandleGetPatrolStatus returns the current patrol status (GET /api/ai/patrol/status)
func (h *AISettingsHandler) HandleGetPatrolStatus(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		// Service not initialized (e.g. no persistence/config yet). Return safe defaults.
		response := PatrolStatusResponse{
			RuntimeState:    ai.PatrolRuntimeStateUnavailable,
			Running:         false,
			Enabled:         false,
			Healthy:         true,
			LicenseRequired: true,
			LicenseStatus:   "none",
			UpgradeURL:      upgradeURLForFeatureFromLicensing(featureAIAutoFixValue),
		}
		if err := utils.WriteJSONResponse(w, response); err != nil {
			log.Error().Err(err).Msg("Failed to write patrol status response (no AI service)")
		}
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		// Patrol not initialized
		licenseStatus, _ := aiService.GetLicenseState()
		hasAutoFixFeature := aiService.HasLicenseFeature(featureAIAutoFixValue)
		response := PatrolStatusResponse{
			RuntimeState:    ai.PatrolRuntimeStateUnavailable,
			Running:         false,
			Enabled:         false,
			Healthy:         true,
			LicenseRequired: !hasAutoFixFeature,
			LicenseStatus:   licenseStatus,
		}
		if !hasAutoFixFeature {
			response.UpgradeURL = upgradeURLForFeatureFromLicensing(featureAIAutoFixValue)
		}
		if err := utils.WriteJSONResponse(w, response); err != nil {
			log.Error().Err(err).Msg("Failed to write patrol status response")
		}
		return
	}

	status := patrol.GetStatus()
	summary := patrol.GetFindingsSummary()

	// Determine license status for Pro feature gating
	// GetLicenseState returns accurate state: none, active, expired, grace_period
	licenseStatus, _ := aiService.GetLicenseState()
	// Check for auto-fix feature - patrol itself is free, auto-fix requires Pro
	hasAutoFixFeature := aiService.HasLicenseFeature(featureAIAutoFixValue)

	// Get fixed count from investigation orchestrator
	fixedCount := 0
	if orchestrator := patrol.GetInvestigationOrchestrator(); orchestrator != nil {
		fixedCount = orchestrator.GetFixedCount()
	}

	response := PatrolStatusResponse{
		RuntimeState:               status.RuntimeState,
		Running:                    status.Running,
		Enabled:                    status.Enabled,
		LastPatrolAt:               status.LastPatrolAt,
		LastActivityAt:             status.LastActivityAt,
		TriggerStatus:              status.TriggerStatus,
		NextPatrolAt:               status.NextPatrolAt,
		LastDurationMs:             status.LastDuration.Milliseconds(),
		ResourcesChecked:           status.ResourcesChecked,
		FindingsCount:              status.FindingsCount,
		ErrorCount:                 status.ErrorCount,
		Healthy:                    status.Healthy,
		IntervalMs:                 status.IntervalMs,
		FixedCount:                 fixedCount,
		BlockedReason:              status.BlockedReason,
		BlockedAt:                  status.BlockedAt,
		QuickstartCreditsRemaining: status.QuickstartCreditsRemaining,
		QuickstartCreditsTotal:     status.QuickstartCreditsTotal,
		UsingQuickstart:            status.UsingQuickstart,
		LicenseRequired:            !hasAutoFixFeature,
		LicenseStatus:              licenseStatus,
	}
	if !hasAutoFixFeature {
		response.UpgradeURL = upgradeURLForFeatureFromLicensing(featureAIAutoFixValue)
	}
	response.Summary.Critical = summary.Critical
	response.Summary.Warning = summary.Warning
	response.Summary.Watch = summary.Watch
	response.Summary.Info = summary.Info

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write patrol status response")
	}
}

// HandleGetIntelligence returns the unified AI intelligence summary (GET /api/ai/intelligence)
// This provides a single endpoint for system-wide AI insights including:
// - Overall health score and grade
// - Active findings summary
// - Upcoming predictions
// - Recent activity
// - Learning progress
// - Resources at risk
func (h *AISettingsHandler) HandleGetIntelligence(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		response := map[string]interface{}{
			"error": "Pulse Patrol service not available",
		}
		w.WriteHeader(http.StatusServiceUnavailable)
		if err := utils.WriteJSONResponse(w, response); err != nil {
			log.Error().Err(err).Msg("Failed to write intelligence response")
		}
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		response := map[string]interface{}{
			"error": "Pulse Patrol service not available",
		}
		w.WriteHeader(http.StatusServiceUnavailable)
		if err := utils.WriteJSONResponse(w, response); err != nil {
			log.Error().Err(err).Msg("Failed to write intelligence response")
		}
		return
	}

	// Get unified intelligence facade
	intel := patrol.GetIntelligence()
	if intel == nil {
		response := map[string]interface{}{
			"error": "Intelligence not initialized",
		}
		w.WriteHeader(http.StatusServiceUnavailable)
		if err := utils.WriteJSONResponse(w, response); err != nil {
			log.Error().Err(err).Msg("Failed to write intelligence response")
		}
		return
	}

	// Check for resource_id query parameter for resource-specific intelligence
	resourceID := r.URL.Query().Get("resource_id")
	if resourceID != "" {
		if len(resourceID) > 500 {
			http.Error(w, "resource_id too long", http.StatusBadRequest)
			return
		}
		// Return resource-specific intelligence
		resourceIntel := intel.GetResourceIntelligence(resourceID)
		if err := utils.WriteJSONResponse(w, resourceIntel); err != nil {
			log.Error().Err(err).Msg("Failed to write resource intelligence response")
		}
		return
	}

	// Return system-wide intelligence summary
	summary := intel.GetSummary()
	if err := utils.WriteJSONResponse(w, summary); err != nil {
		log.Error().Err(err).Msg("Failed to write intelligence summary response")
	}
}

// HandlePatrolStream streams real-time patrol analysis via SSE (GET /api/ai/patrol/stream)
func (h *AISettingsHandler) HandlePatrolStream(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	// Set SSE headers
	h.setSSECORSHeaders(w, r)
	w.Header().Set("Content-Type", "text/event-stream")
	w.Header().Set("Cache-Control", "no-cache")
	w.Header().Set("Connection", "keep-alive")
	// Disable proxy buffering (e.g. nginx) so events reach clients promptly.
	w.Header().Set("X-Accel-Buffering", "no")

	flusher, ok := w.(http.Flusher)
	if !ok {
		http.Error(w, "Streaming not supported", http.StatusInternalServerError)
		return
	}

	// Send an SSE comment to flush headers immediately so clients get the
	// HTTP 200 response right away instead of blocking until the first event.
	if _, err := fmt.Fprintf(w, ": connected\n\n"); err != nil {
		log.Debug().Err(err).Msg("Patrol stream: failed to write initial SSE comment")
		return
	}
	flusher.Flush()

	// Subscribe to patrol stream
	// Note: SubscribeToStream already sends the current buffered output to the channel
	lastID := int64(0)
	if raw := strings.TrimSpace(r.Header.Get("Last-Event-ID")); raw != "" {
		if v, err := strconv.ParseInt(raw, 10, 64); err == nil && v > 0 {
			lastID = v
		}
	}
	// EventSource doesn't allow setting headers manually. Accept a query param fallback
	// so clients can resume even when they create a new EventSource instance.
	if lastID == 0 {
		if raw := strings.TrimSpace(r.URL.Query().Get("last_event_id")); raw != "" {
			if v, err := strconv.ParseInt(raw, 10, 64); err == nil && v > 0 {
				lastID = v
			}
		}
	}
	ch := patrol.SubscribeToStreamFrom(lastID)
	defer patrol.UnsubscribeFromStream(ch)

	// Stream events until client disconnects
	ctx := r.Context()
	heartbeat := time.NewTicker(15 * time.Second)
	defer heartbeat.Stop()
	for {
		select {
		case <-ctx.Done():
			return
		case <-heartbeat.C:
			// SSE comment heartbeat keeps intermediaries from timing out the stream.
			if _, err := fmt.Fprintf(w, ": ping %d\n\n", time.Now().Unix()); err != nil {
				log.Debug().Err(err).Msg("Patrol stream: failed to write heartbeat")
				return
			}
			flusher.Flush()
		case event, ok := <-ch:
			if !ok {
				return
			}
			data, err := json.Marshal(event)
			if err != nil {
				continue
			}
			// Best-effort event id for Last-Event-ID support.
			if event.Seq != 0 {
				if _, err := fmt.Fprintf(w, "id: %d\n", event.Seq); err != nil {
					log.Debug().Err(err).Msg("Patrol stream: failed to write event id")
					return
				}
			}
			if _, err := fmt.Fprintf(w, "data: %s\n\n", data); err != nil {
				log.Debug().Err(err).Msg("Patrol stream: failed to write event data")
				return
			}
			flusher.Flush()
		}
	}
}

// HandleGetPatrolFindings returns all active findings (GET /api/ai/patrol/findings)
func (h *AISettingsHandler) HandleGetPatrolFindings(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		// Return empty findings
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write patrol findings response (no AI service)")
		}
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		// Return empty findings
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write patrol findings response")
		}
		return
	}

	// Check for resource_id query parameter
	resourceID := r.URL.Query().Get("resource_id")
	var findings []*ai.Finding
	if resourceID != "" {
		findings = patrol.GetFindingsForResource(resourceID)
	} else {
		findings = patrol.GetAllFindings()
	}

	// Optional limit parameter (for relay proxy clients with body size constraints)
	if limitStr := r.URL.Query().Get("limit"); limitStr != "" {
		if limit, err := strconv.Atoi(limitStr); err == nil && limit > 0 && limit < len(findings) {
			findings = findings[:limit]
		}
	}

	if err := utils.WriteJSONResponse(w, findings); err != nil {
		log.Error().Err(err).Msg("Failed to write patrol findings response")
	}
}

// HandleForcePatrol triggers an immediate patrol run (POST /api/ai/patrol/run)
func (h *AISettingsHandler) HandleForcePatrol(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require admin authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	// Cadence cap: Community tier is limited to 1 patrol run per hour.
	// Patrol itself is free (ai_patrol), but higher cadence is gated behind Pro/Cloud.
	if !aiService.HasLicenseFeature(featureAIAutoFixValue) {
		if last := patrol.GetStatus().LastPatrolAt; last != nil {
			if since := time.Since(*last); since < 1*time.Hour {
				remaining := (1*time.Hour - since).Round(time.Minute)
				writeErrorResponse(w, http.StatusTooManyRequests, "patrol_rate_limited",
					fmt.Sprintf("Community tier is limited to 1 patrol run per hour. Try again in %s.", remaining), nil)
				return
			}
		}
	}

	// Trigger patrol asynchronously
	patrol.ForcePatrol(r.Context())

	response := map[string]interface{}{
		"success": true,
		"message": "Triggered patrol run",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write force patrol response")
	}
}

// HandleAcknowledgeFinding acknowledges a finding (POST /api/ai/patrol/acknowledge)
// This marks the finding as seen but keeps it visible (dimmed). Auto-resolve removes it when condition clears.
// This matches alert acknowledgement behavior for UI consistency.
func (h *AISettingsHandler) HandleAcknowledgeFinding(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		FindingID string `json:"finding_id"`
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.FindingID == "" {
		http.Error(w, "finding_id is required", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()

	// Try patrol findings store first
	var detectedAt time.Time
	var category, severity, resourceID, findingKey string
	foundInPatrol := false

	finding := findings.Get(req.FindingID)
	if finding != nil {
		foundInPatrol = true
		detectedAt = finding.DetectedAt
		category = string(finding.Category)
		severity = string(finding.Severity)
		resourceID = finding.ResourceID
		findingKey = finding.Key
	}

	// If not in patrol findings, check the unified store (for threshold alerts)
	unifiedStore := h.GetUnifiedStoreForOrg(GetOrgID(r.Context()))
	if !foundInPatrol && unifiedStore != nil {
		unifiedFinding := unifiedStore.Get(req.FindingID)
		if unifiedFinding != nil {
			detectedAt = unifiedFinding.DetectedAt
			category = string(unifiedFinding.Category)
			severity = string(unifiedFinding.Severity)
			resourceID = unifiedFinding.ResourceID
			findingKey = unifiedFinding.ID
		} else {
			http.Error(w, "Finding not found", http.StatusNotFound)
			return
		}
	} else if !foundInPatrol {
		http.Error(w, "Finding not found", http.StatusNotFound)
		return
	}
	if foundInPatrol {
		if err := patrol.RejectManualActionForRuntimeFinding(req.FindingID, "acknowledged"); err != nil {
			http.Error(w, err.Error(), http.StatusConflict)
			return
		}
	}

	// Acknowledge in patrol findings if it exists there
	if foundInPatrol {
		if !findings.Acknowledge(req.FindingID) {
			http.Error(w, "Finding not found", http.StatusNotFound)
			return
		}
	}

	// Acknowledge in unified store (for both patrol and threshold alerts)
	if unifiedStore != nil {
		unifiedStore.Acknowledge(req.FindingID)
	}

	// Record to learning store
	if learningStore := h.GetLearningStoreForOrg(GetOrgID(r.Context())); learningStore != nil {
		learningStore.RecordFeedback(learning.FeedbackRecord{
			FindingID:    req.FindingID,
			FindingKey:   findingKey,
			ResourceID:   resourceID,
			Category:     category,
			Severity:     severity,
			Action:       learning.ActionAcknowledge,
			TimeToAction: time.Since(detectedAt),
		})
	}

	log.Info().
		Str("finding_id", req.FindingID).
		Msg("AI Patrol: Finding acknowledged by user")

	response := map[string]interface{}{
		"success": true,
		"message": "Finding acknowledged",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write acknowledge response")
	}
}

// HandleSnoozeFinding snoozes a finding for a specified duration (POST /api/ai/patrol/snooze)
// Snoozed findings are hidden from the active list but will reappear if condition persists after snooze expires
func (h *AISettingsHandler) HandleSnoozeFinding(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		FindingID     string `json:"finding_id"`
		DurationHours int    `json:"duration_hours"`
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.FindingID == "" {
		http.Error(w, "finding_id is required", http.StatusBadRequest)
		return
	}

	if req.DurationHours <= 0 {
		http.Error(w, "duration_hours must be positive", http.StatusBadRequest)
		return
	}

	// Cap snooze duration at 7 days
	if req.DurationHours > 168 {
		req.DurationHours = 168
	}

	findings := patrol.GetFindings()
	duration := time.Duration(req.DurationHours) * time.Hour

	// Try patrol findings store first
	var detectedAt time.Time
	var category, severity, resourceID, findingKey string
	foundInPatrol := false

	finding := findings.Get(req.FindingID)
	if finding != nil {
		foundInPatrol = true
		detectedAt = finding.DetectedAt
		category = string(finding.Category)
		severity = string(finding.Severity)
		resourceID = finding.ResourceID
		findingKey = finding.Key
	}

	// If not in patrol findings, check the unified store (for threshold alerts)
	unifiedStore := h.GetUnifiedStoreForOrg(GetOrgID(r.Context()))
	if !foundInPatrol && unifiedStore != nil {
		unifiedFinding := unifiedStore.Get(req.FindingID)
		if unifiedFinding != nil {
			detectedAt = unifiedFinding.DetectedAt
			category = string(unifiedFinding.Category)
			severity = string(unifiedFinding.Severity)
			resourceID = unifiedFinding.ResourceID
			findingKey = unifiedFinding.ID
		} else {
			http.Error(w, "Finding not found or already resolved", http.StatusNotFound)
			return
		}
	} else if !foundInPatrol {
		http.Error(w, "Finding not found or already resolved", http.StatusNotFound)
		return
	}
	if foundInPatrol {
		if err := patrol.RejectManualActionForRuntimeFinding(req.FindingID, "snoozed"); err != nil {
			http.Error(w, err.Error(), http.StatusConflict)
			return
		}
	}

	// Snooze in patrol findings if it exists there
	if foundInPatrol {
		if !findings.Snooze(req.FindingID, duration) {
			http.Error(w, "Finding not found or already resolved", http.StatusNotFound)
			return
		}
	}

	// Snooze in unified store (for both patrol and threshold alerts)
	if unifiedStore != nil {
		unifiedStore.Snooze(req.FindingID, duration)
	}

	// Record to learning store
	if learningStore := h.GetLearningStoreForOrg(GetOrgID(r.Context())); learningStore != nil {
		learningStore.RecordFeedback(learning.FeedbackRecord{
			FindingID:    req.FindingID,
			FindingKey:   findingKey,
			ResourceID:   resourceID,
			Category:     category,
			Severity:     severity,
			Action:       learning.ActionSnooze,
			TimeToAction: time.Since(detectedAt),
		})
	}

	log.Info().
		Str("finding_id", req.FindingID).
		Int("hours", req.DurationHours).
		Msg("AI Patrol: Finding snoozed by user")

	response := map[string]interface{}{
		"success": true,
		"message": fmt.Sprintf("Finding snoozed for %d hours", req.DurationHours),
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write snooze response")
	}
}

// HandleResolveFinding manually marks a finding as resolved (POST /api/ai/patrol/resolve)
// Use this when the user has fixed the issue and wants to mark it as resolved
func (h *AISettingsHandler) HandleResolveFinding(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		FindingID string `json:"finding_id"`
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.FindingID == "" {
		http.Error(w, "finding_id is required", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()

	// Get finding details before resolving (for learning/analytics)
	finding := findings.Get(req.FindingID)
	if finding == nil {
		http.Error(w, "Finding not found or already resolved", http.StatusNotFound)
		return
	}
	if err := patrol.RejectManualActionForRuntimeFinding(req.FindingID, "resolved"); err != nil {
		http.Error(w, err.Error(), http.StatusConflict)
		return
	}

	// Capture details before action
	detectedAt := finding.DetectedAt
	category := string(finding.Category)
	severity := string(finding.Severity)
	resourceID := finding.ResourceID

	// Mark as manually resolved (auto=false since user did it)
	if !findings.Resolve(req.FindingID, false) {
		http.Error(w, "Finding not found or already resolved", http.StatusNotFound)
		return
	}

	// Mirror into unified store for consistent UI state
	if store := h.GetUnifiedStoreForOrg(GetOrgID(r.Context())); store != nil {
		store.Resolve(req.FindingID)
	}

	// Record to learning store - manual resolve = user fixed the issue
	if learningStore := h.GetLearningStoreForOrg(GetOrgID(r.Context())); learningStore != nil {
		learningStore.RecordFeedback(learning.FeedbackRecord{
			FindingID:    req.FindingID,
			FindingKey:   finding.Key,
			ResourceID:   resourceID,
			Category:     category,
			Severity:     severity,
			Action:       learning.ActionQuickFix, // Manual resolve means user took action to fix
			TimeToAction: time.Since(detectedAt),
		})
	}

	log.Info().
		Str("finding_id", req.FindingID).
		Msg("AI Patrol: Finding manually resolved by user")

	response := map[string]interface{}{
		"success": true,
		"message": "Finding marked as resolved",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write resolve response")
	}
}

// HandleSetFindingNote sets or updates a user note on a finding (POST /api/ai/patrol/findings/note)
// Notes provide context that Patrol sees on future runs (e.g., "PBS server was decommissioned").
func (h *AISettingsHandler) HandleSetFindingNote(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		FindingID string `json:"finding_id"`
		Note      string `json:"note"`
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.FindingID == "" {
		http.Error(w, "finding_id is required", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()
	ok := findings.SetUserNote(req.FindingID, req.Note)
	if !ok {
		http.Error(w, "Finding not found", http.StatusNotFound)
		return
	}

	// Mirror the note to the unified store immediately so it's visible
	// without waiting for the next patrol sync cycle
	if unifiedStore := h.GetUnifiedStoreForOrg(GetOrgID(r.Context())); unifiedStore != nil {
		unifiedStore.SetUserNote(req.FindingID, req.Note)
	}

	response := map[string]interface{}{
		"success": true,
		"message": "Note updated",
	}
	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write set-note response")
	}
}

// HandleDismissFinding dismisses a finding with a reason and optional note (POST /api/ai/patrol/dismiss)
// This is part of the LLM memory system - dismissed findings are included in context to prevent re-raising
// Valid reasons: "not_an_issue", "expected_behavior", "will_fix_later"
func (h *AISettingsHandler) HandleDismissFinding(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		FindingID string `json:"finding_id"`
		Reason    string `json:"reason"` // "not_an_issue", "expected_behavior", "will_fix_later"
		Note      string `json:"note"`   // Optional freeform note
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.FindingID == "" {
		http.Error(w, "finding_id is required", http.StatusBadRequest)
		return
	}

	if req.Reason == "" {
		http.Error(w, "reason is required", http.StatusBadRequest)
		return
	}

	// Validate reason
	validReasons := map[string]bool{
		"not_an_issue":      true,
		"expected_behavior": true,
		"will_fix_later":    true,
	}
	if req.Reason != "" && !validReasons[req.Reason] {
		http.Error(w, "Invalid reason. Valid values: not_an_issue, expected_behavior, will_fix_later", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()

	// Try patrol findings store first
	var detectedAt time.Time
	var category, severity, resourceID, findingKey string
	foundInPatrol := false

	finding := findings.Get(req.FindingID)
	if finding != nil {
		foundInPatrol = true
		detectedAt = finding.DetectedAt
		category = string(finding.Category)
		severity = string(finding.Severity)
		resourceID = finding.ResourceID
		findingKey = finding.Key
	}

	// If not in patrol findings, check the unified store (for threshold alerts)
	unifiedStore := h.GetUnifiedStoreForOrg(GetOrgID(r.Context()))
	if !foundInPatrol && unifiedStore != nil {
		unifiedFinding := unifiedStore.Get(req.FindingID)
		if unifiedFinding != nil {
			detectedAt = unifiedFinding.DetectedAt
			category = string(unifiedFinding.Category)
			severity = string(unifiedFinding.Severity)
			resourceID = unifiedFinding.ResourceID
			findingKey = unifiedFinding.ID // Use ID as key for unified findings
		} else {
			http.Error(w, "Finding not found", http.StatusNotFound)
			return
		}
	} else if !foundInPatrol {
		http.Error(w, "Finding not found", http.StatusNotFound)
		return
	}
	if foundInPatrol {
		if err := patrol.RejectManualActionForRuntimeFinding(req.FindingID, "dismissed"); err != nil {
			http.Error(w, err.Error(), http.StatusConflict)
			return
		}
	}

	// Dismiss in patrol findings if it exists there
	if foundInPatrol {
		if !findings.Dismiss(req.FindingID, req.Reason, req.Note) {
			http.Error(w, "Finding not found", http.StatusNotFound)
			return
		}
	}

	// Dismiss in unified store (for both patrol and threshold alerts)
	if unifiedStore != nil {
		unifiedStore.Dismiss(req.FindingID, req.Reason, req.Note)
	}

	// Map dismiss reason to learning action
	var learningAction learning.UserAction
	switch req.Reason {
	case "not_an_issue":
		learningAction = learning.ActionDismissNotAnIssue
	case "expected_behavior":
		learningAction = learning.ActionDismissExpected
	case "will_fix_later":
		learningAction = learning.ActionDismissWillFixLater
	default:
		learningAction = learning.ActionDismissNotAnIssue // Default
	}

	// Record to learning store
	if learningStore := h.GetLearningStoreForOrg(GetOrgID(r.Context())); learningStore != nil {
		learningStore.RecordFeedback(learning.FeedbackRecord{
			FindingID:    req.FindingID,
			FindingKey:   findingKey,
			ResourceID:   resourceID,
			Category:     category,
			Severity:     severity,
			Action:       learningAction,
			UserNote:     req.Note,
			TimeToAction: time.Since(detectedAt),
		})
	}

	log.Info().
		Str("finding_id", req.FindingID).
		Str("reason", req.Reason).
		Bool("has_note", req.Note != "").
		Msg("AI Patrol: Finding dismissed by user with reason")

	response := map[string]interface{}{
		"success": true,
		"message": "Finding dismissed",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write dismiss response")
	}
}

// HandleSuppressFinding permanently suppresses similar findings for a resource (POST /api/ai/patrol/suppress)
// The LLM will be told never to re-raise findings of this type for this resource
func (h *AISettingsHandler) HandleSuppressFinding(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		FindingID string `json:"finding_id"`
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.FindingID == "" {
		http.Error(w, "finding_id is required", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()

	// Get finding details before suppressing (for learning/analytics)
	finding := findings.Get(req.FindingID)
	if finding == nil {
		http.Error(w, "Finding not found", http.StatusNotFound)
		return
	}
	if err := patrol.RejectManualActionForRuntimeFinding(req.FindingID, "suppressed"); err != nil {
		http.Error(w, err.Error(), http.StatusConflict)
		return
	}

	// Capture details before action
	detectedAt := finding.DetectedAt
	category := string(finding.Category)
	severity := string(finding.Severity)
	resourceID := finding.ResourceID

	if !findings.Suppress(req.FindingID) {
		http.Error(w, "Finding not found", http.StatusNotFound)
		return
	}

	// Mirror into unified store for consistent UI state
	if store := h.GetUnifiedStoreForOrg(GetOrgID(r.Context())); store != nil {
		store.Dismiss(req.FindingID, "not_an_issue", "Permanently suppressed by user")
	}

	// Record to learning store - suppress is a strong "not an issue" signal
	if learningStore := h.GetLearningStoreForOrg(GetOrgID(r.Context())); learningStore != nil {
		learningStore.RecordFeedback(learning.FeedbackRecord{
			FindingID:    req.FindingID,
			FindingKey:   finding.Key,
			ResourceID:   resourceID,
			Category:     category,
			Severity:     severity,
			Action:       learning.ActionDismissNotAnIssue, // Suppress = permanent dismissal
			UserNote:     "Permanently suppressed by user",
			TimeToAction: time.Since(detectedAt),
		})
	}

	log.Info().
		Str("finding_id", req.FindingID).
		Msg("AI Patrol: Finding type permanently suppressed by user")

	response := map[string]interface{}{
		"success": true,
		"message": "Finding type suppressed - similar issues will not be raised again",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write suppress response")
	}
}

// HandleClearAllFindings clears all AI findings (DELETE /api/ai/patrol/findings)
// This allows users to clear accumulated findings, especially useful for users who
// accumulated findings before the patrol-without-AI bug was fixed.
func (h *AISettingsHandler) HandleClearAllFindings(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodDelete {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication (already wrapped by RequireAuth in router)
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	// Check for confirm parameter
	if r.URL.Query().Get("confirm") != "true" {
		http.Error(w, "confirm=true query parameter required", http.StatusBadRequest)
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	findings := patrol.GetFindings()
	count := findings.ClearAll()

	log.Info().Int("count", count).Msg("Cleared all AI findings")

	response := map[string]interface{}{
		"success": true,
		"cleared": count,
		"message": fmt.Sprintf("Cleared %d findings", count),
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write clear findings response")
	}
}

// HandleGetFindingsHistory returns all findings including resolved for history (GET /api/ai/patrol/history)
func (h *AISettingsHandler) HandleGetFindingsHistory(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		// Return empty history
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write findings history response")
		}
		return
	}

	// Parse optional startTime query parameter
	var startTime *time.Time
	if startTimeStr := r.URL.Query().Get("start_time"); startTimeStr != "" {
		if t, err := time.Parse(time.RFC3339, startTimeStr); err == nil {
			startTime = &t
		}
	}

	findings := patrol.GetFindingsHistory(startTime)

	if err := utils.WriteJSONResponse(w, findings); err != nil {
		log.Error().Err(err).Msg("Failed to write findings history response")
	}
}

// HandleGetPatrolRunHistory returns the history of patrol check runs (GET /api/ai/patrol/runs)
func (h *AISettingsHandler) HandleGetPatrolRunHistory(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		// Return empty history
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write patrol run history response (no AI service)")
		}
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		// Return empty history
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write patrol run history response")
		}
		return
	}

	// Parse optional limit query parameter (default: 30)
	limit := 30
	if limitStr := r.URL.Query().Get("limit"); limitStr != "" {
		if parsed, err := strconv.Atoi(limitStr); err == nil && parsed > 0 {
			limit = parsed
			if limit > 100 {
				limit = 100 // Cap at MaxPatrolRunHistory
			}
		}
	}

	runs := patrol.GetRunHistory(limit)

	// By default, omit full tool call arrays to keep payloads lean.
	// Use ?include=tool_calls to get the full array.
	includeToolCalls := r.URL.Query().Get("include") == "tool_calls"
	if !includeToolCalls {
		for i := range runs {
			runs[i].ToolCalls = nil
		}
	}

	if err := utils.WriteJSONResponse(w, runs); err != nil {
		log.Error().Err(err).Msg("Failed to write patrol run history response")
	}
}

// HandleGetPatrolRun returns a single patrol run by ID (GET /api/ai/patrol/runs/{id})
func (h *AISettingsHandler) HandleGetPatrolRun(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	const prefix = "/api/ai/patrol/runs/"
	if !strings.HasPrefix(r.URL.Path, prefix) {
		http.Error(w, "Invalid path", http.StatusBadRequest)
		return
	}

	runID := strings.TrimPrefix(r.URL.Path, prefix)
	if runID == "" {
		http.Error(w, "run_id is required", http.StatusBadRequest)
		return
	}
	if decoded, err := url.PathUnescape(runID); err == nil {
		runID = decoded
	}
	if strings.TrimSpace(runID) == "" {
		http.Error(w, "run_id is required", http.StatusBadRequest)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		writeErrorResponse(
			w,
			http.StatusServiceUnavailable,
			"service_unavailable",
			"Pulse Patrol service not available",
			nil,
		)
		return
	}

	patrol := aiService.GetPatrolService()
	if patrol == nil {
		writeErrorResponse(
			w,
			http.StatusServiceUnavailable,
			"service_unavailable",
			"Pulse Patrol service not available",
			nil,
		)
		return
	}

	run, ok := patrol.GetRunByID(runID)
	if !ok {
		writeErrorResponse(w, http.StatusNotFound, "not_found", "Patrol run not found", nil)
		return
	}

	// By default, omit full tool call arrays to keep payloads lean.
	// Use ?include=tool_calls to get the full array.
	if r.URL.Query().Get("include") != "tool_calls" {
		run.ToolCalls = nil
	}

	if err := utils.WriteJSONResponse(w, run); err != nil {
		log.Error().Err(err).Msg("Failed to write patrol run response")
	}
}

// HandleGetAICostSummary returns AI usage rollups (GET /api/ai/cost/summary?days=N).
func (h *AISettingsHandler) HandleGetAICostSummary(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Parse optional days query parameter (default: 30, max: 365)
	days := 30
	if daysStr := r.URL.Query().Get("days"); daysStr != "" {
		var parsed int
		if _, err := fmt.Sscanf(daysStr, "%d", &parsed); err == nil && parsed > 0 {
			days = parsed
			if days > 365 {
				days = 365
			}
		}
	}

	var summary cost.Summary
	if h.GetAIService(r.Context()) != nil {
		summary = h.GetAIService(r.Context()).GetCostSummary(days)
	} else {
		summary = cost.EmptySummary(days, cost.DefaultMaxDays, days, false)
	}

	if err := utils.WriteJSONResponse(w, summary); err != nil {
		log.Error().Err(err).Msg("Failed to write AI cost summary response")
	}
}

// HandleResetAICostHistory deletes retained AI usage events (POST /api/ai/cost/reset).
func (h *AISettingsHandler) HandleResetAICostHistory(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Limit body size — this endpoint takes no body but cap it to prevent abuse.
	r.Body = http.MaxBytesReader(w, r.Body, 1024)

	if h.GetAIService(r.Context()) == nil {
		http.Error(w, "Pulse Assistant service unavailable", http.StatusServiceUnavailable)
		return
	}

	backupFile := ""
	if h.getPersistence(r.Context()) != nil {
		configDir := h.getPersistence(r.Context()).DataDir()
		if strings.TrimSpace(configDir) != "" {
			usagePath := filepath.Join(configDir, "ai_usage_history.json")
			if _, err := os.Stat(usagePath); err == nil {
				ts := time.Now().UTC().Format("20060102-150405")
				backupFile = fmt.Sprintf("ai_usage_history.json.bak-%s", ts)
				backupPath := filepath.Join(configDir, backupFile)
				if err := os.Rename(usagePath, backupPath); err != nil {
					log.Error().Err(err).Str("path", usagePath).Msg("Failed to backup Pulse Assistant usage history before reset")
					http.Error(w, "Failed to backup Pulse Assistant usage history", http.StatusInternalServerError)
					return
				}
			}
		}
	}

	if err := h.GetAIService(r.Context()).ClearCostHistory(); err != nil {
		log.Error().Err(err).Msg("Failed to clear Pulse Assistant usage history")
		http.Error(w, "Failed to clear Pulse Assistant usage history", http.StatusInternalServerError)
		return
	}

	resp := map[string]any{"ok": true}
	if backupFile != "" {
		resp["backup_file"] = backupFile
	}

	if err := utils.WriteJSONResponse(w, resp); err != nil {
		log.Error().Err(err).Msg("Failed to write clear cost history response")
	}
}

// HandleExportAICostHistory exports recent AI usage history as JSON or CSV (GET /api/ai/cost/export?days=N&format=csv|json).
func (h *AISettingsHandler) HandleExportAICostHistory(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	if h.GetAIService(r.Context()) == nil {
		http.Error(w, "Pulse Assistant service unavailable", http.StatusServiceUnavailable)
		return
	}

	days := 30
	if daysStr := r.URL.Query().Get("days"); daysStr != "" {
		if v, err := strconv.Atoi(daysStr); err == nil && v > 0 {
			if v > 365 {
				v = 365
			}
			days = v
		}
	}

	format := strings.ToLower(strings.TrimSpace(r.URL.Query().Get("format")))
	if format == "" {
		format = "json"
	}
	if format != "json" && format != "csv" {
		http.Error(w, "format must be 'json' or 'csv'", http.StatusBadRequest)
		return
	}

	events := h.GetAIService(r.Context()).ListCostEvents(days)

	filename := fmt.Sprintf("pulse-ai-usage-%s-%dd.%s", time.Now().UTC().Format("20060102"), days, format)
	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%q", filename))

	if format == "json" {
		w.Header().Set("Content-Type", "application/json")
		type exportEvent struct {
			cost.UsageEvent
			EstimatedUSD float64 `json:"estimated_usd,omitempty"`
			PricingKnown bool    `json:"pricing_known"`
		}
		exported := make([]exportEvent, 0, len(events))
		for _, e := range events {
			provider, model := cost.ResolveProviderAndModel(e.Provider, e.RequestModel, e.ResponseModel)
			usd, ok, _ := cost.EstimateUSD(provider, model, int64(e.InputTokens), int64(e.OutputTokens))
			exported = append(exported, exportEvent{
				UsageEvent:   e,
				EstimatedUSD: usd,
				PricingKnown: ok,
			})
		}
		resp := map[string]any{
			"days":   days,
			"events": exported,
		}
		if err := json.NewEncoder(w).Encode(resp); err != nil {
			log.Error().Err(err).Msg("Failed to write AI cost export JSON")
		}
		return
	}

	w.Header().Set("Content-Type", "text/csv")
	cw := csv.NewWriter(w)
	_ = cw.Write([]string{
		"timestamp",
		"provider",
		"request_model",
		"response_model",
		"use_case",
		"input_tokens",
		"output_tokens",
		"estimated_usd",
		"pricing_known",
		"target_type",
		"target_id",
		"finding_id",
	})
	for _, e := range events {
		provider, model := cost.ResolveProviderAndModel(e.Provider, e.RequestModel, e.ResponseModel)
		usd, ok, _ := cost.EstimateUSD(provider, model, int64(e.InputTokens), int64(e.OutputTokens))

		_ = cw.Write([]string{
			e.Timestamp.UTC().Format(time.RFC3339Nano),
			e.Provider,
			e.RequestModel,
			e.ResponseModel,
			e.UseCase,
			strconv.Itoa(e.InputTokens),
			strconv.Itoa(e.OutputTokens),
			strconv.FormatFloat(usd, 'f', 6, 64),
			strconv.FormatBool(ok),
			e.TargetType,
			e.TargetID,
			e.FindingID,
		})
	}
	cw.Flush()
	if err := cw.Error(); err != nil {
		log.Error().Err(err).Msg("Failed to write AI cost export CSV")
	}
}

// HandleGetSuppressionRules returns all suppression rules (GET /api/ai/patrol/suppressions)
func (h *AISettingsHandler) HandleGetSuppressionRules(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write suppression rules response")
		}
		return
	}

	findings := patrol.GetFindings()
	rules := findings.GetSuppressionRules()

	if err := utils.WriteJSONResponse(w, rules); err != nil {
		log.Error().Err(err).Msg("Failed to write suppression rules response")
	}
}

// HandleAddSuppressionRule creates a new suppression rule (POST /api/ai/patrol/suppressions)
func (h *AISettingsHandler) HandleAddSuppressionRule(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	var req struct {
		ResourceID   string `json:"resource_id"`   // Can be empty for "any resource"
		ResourceName string `json:"resource_name"` // Human-readable name
		Category     string `json:"category"`      // Can be empty for "any category"
		Description  string `json:"description"`   // Required - user's reason
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		http.Error(w, "Invalid request body", http.StatusBadRequest)
		return
	}

	if req.Description == "" {
		http.Error(w, "description is required", http.StatusBadRequest)
		return
	}

	// Convert category string to FindingCategory
	var category ai.FindingCategory
	switch req.Category {
	case "performance":
		category = ai.FindingCategoryPerformance
	case "capacity":
		category = ai.FindingCategoryCapacity
	case "reliability":
		category = ai.FindingCategoryReliability
	case "backup":
		category = ai.FindingCategoryBackup
	case "security":
		category = ai.FindingCategorySecurity
	case "general":
		category = ai.FindingCategoryGeneral
	case "":
		category = "" // Any category
	default:
		http.Error(w, "Invalid category", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()
	rule := findings.AddSuppressionRule(req.ResourceID, req.ResourceName, category, req.Description)

	log.Info().
		Str("rule_id", rule.ID).
		Str("resource_id", req.ResourceID).
		Str("category", req.Category).
		Str("description", req.Description).
		Msg("AI Patrol: Manual suppression rule created")

	response := map[string]interface{}{
		"success": true,
		"message": "Suppression rule created",
		"rule":    rule,
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write add suppression rule response")
	}
}

// HandleDeleteSuppressionRule removes a suppression rule (DELETE /api/ai/patrol/suppressions/:id)
func (h *AISettingsHandler) HandleDeleteSuppressionRule(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodDelete {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		writePatrolServiceUnavailableResponse(w)
		return
	}

	// Get rule ID from URL path
	ruleID := strings.TrimPrefix(r.URL.Path, "/api/ai/patrol/suppressions/")
	if ruleID == "" {
		http.Error(w, "rule_id is required", http.StatusBadRequest)
		return
	}

	findings := patrol.GetFindings()

	if !findings.DeleteSuppressionRule(ruleID) {
		http.Error(w, "Rule not found", http.StatusNotFound)
		return
	}

	log.Info().
		Str("rule_id", ruleID).
		Msg("AI Patrol: Suppression rule deleted")

	response := map[string]interface{}{
		"success": true,
		"message": "Suppression rule deleted",
	}

	if err := utils.WriteJSONResponse(w, response); err != nil {
		log.Error().Err(err).Msg("Failed to write delete suppression rule response")
	}
}

// HandleGetDismissedFindings returns all dismissed/suppressed findings (GET /api/ai/patrol/dismissed)
func (h *AISettingsHandler) HandleGetDismissedFindings(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Require authentication
	if !CheckAuth(h.getConfig(r.Context()), w, r) {
		return
	}

	patrol := h.getPatrolService(r.Context())
	if patrol == nil {
		if err := utils.WriteJSONResponse(w, []interface{}{}); err != nil {
			log.Error().Err(err).Msg("Failed to write dismissed findings response")
		}
		return
	}

	findings := patrol.GetFindings()
	dismissed := findings.GetDismissedFindings()

	if err := utils.WriteJSONResponse(w, dismissed); err != nil {
		log.Error().Err(err).Msg("Failed to write dismissed findings response")
	}
}

// getAuthUsername extracts the username from the current auth context
func getAuthUsername(cfg *config.Config, r *http.Request) string {
	if token := getAPITokenRecordFromRequest(r); token != nil {
		if username := apiTokenAuthenticatedUser(token); username != "" {
			return username
		}
	}

	// Check OIDC session first
	if cookie, err := readSessionCookie(r); err == nil && cookie.Value != "" {
		if username := GetSessionUsername(cookie.Value); username != "" {
			return username
		}
	}

	// Check proxy auth
	if cfg.ProxyAuthSecret != "" {
		if valid, username, _ := CheckProxyAuth(cfg, r); valid && username != "" {
			return username
		}
	}

	// Fall back to basic auth username
	if cfg.AuthUser != "" {
		return cfg.AuthUser
	}

	// Single-user mode without auth
	return ""
}

// ============================================================================
// Approval Workflow Handlers (Pro Feature)
// ============================================================================

// HandleListApprovals has been moved to enterprise.
// The route now delegates to aiAutoFixEndpoints.HandleListApprovals.

// HandleGetApproval returns a specific approval request.
func (h *AISettingsHandler) HandleGetApproval(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Extract ID from path: /api/ai/approvals/{id}
	approvalID := strings.TrimPrefix(r.URL.Path, "/api/ai/approvals/")
	approvalID = strings.TrimSuffix(approvalID, "/")
	approvalID = strings.Split(approvalID, "/")[0] // Handle /approve or /deny suffixes

	if approvalID == "" {
		writeErrorResponse(w, http.StatusBadRequest, "missing_id", "Approval ID is required", nil)
		return
	}

	store := approval.GetStore()
	if store == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Approval store not initialized", nil)
		return
	}

	orgID := approval.NormalizeOrgID(GetOrgID(r.Context()))
	req, ok := store.GetApproval(approvalID)
	if !ok || !approval.BelongsToOrg(req, orgID) {
		writeErrorResponse(w, http.StatusNotFound, "not_found", "Approval request not found", nil)
		return
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(req)
}

// HandleApproveCommand approves a pending command and executes it.
func (h *AISettingsHandler) HandleApproveCommand(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// SECURITY: Approval execution accepts the dedicated mobile relay capability
	// for new pairings while remaining backward-compatible with older mobile
	// tokens that still carry ai:execute.
	if !ensureRelayMobileRuntimeRoute(w, r, relayMobileRouteApprovalApprove) {
		return
	}

	// Extract ID from path: /api/ai/approvals/{id}/approve
	path := strings.TrimPrefix(r.URL.Path, "/api/ai/approvals/")
	path = strings.TrimSuffix(path, "/approve")
	approvalID := strings.TrimSuffix(path, "/")

	if approvalID == "" {
		writeErrorResponse(w, http.StatusBadRequest, "missing_id", "Approval ID is required", nil)
		return
	}

	store := approval.GetStore()
	if store == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Approval store not initialized", nil)
		return
	}
	orgID := approval.NormalizeOrgID(GetOrgID(r.Context()))
	existingReq, ok := store.GetApproval(approvalID)
	if !ok || !approval.BelongsToOrg(existingReq, orgID) {
		writeErrorResponse(w, http.StatusNotFound, "not_found", "Approval request not found", nil)
		return
	}

	// Investigation fix approvals are gated by the AI auto-fix extension point.
	// The free adapter returns 402; the enterprise adapter executes the fix.
	if existingReq.ToolID == "investigation_fix" {
		if h.aiAutoFixEndpoints != nil {
			h.aiAutoFixEndpoints.HandleApproveInvestigationFix(w, r)
		} else {
			WriteLicenseRequired(w, featureAIAutoFixValue, "Pulse Patrol Auto-Fix feature requires Pulse Pro")
		}
		return
	}

	username := getAuthUsername(h.getConfig(r.Context()), r)
	if username == "" {
		username = "anonymous"
	}

	req, err := store.Approve(approvalID, username)
	if err != nil {
		writeErrorResponse(w, http.StatusBadRequest, "approval_failed", err.Error(), nil)
		return
	}

	// Log audit event
	LogAuditEvent("ai_command_approved", username, GetClientIP(r), r.URL.Path, true,
		fmt.Sprintf("Approved command: %s", truncateForLog(req.Command, 100)))

	// For chat sidebar approvals, the agentic loop will detect approval and execute
	response := map[string]interface{}{
		"approved":    true,
		"request":     req,
		"approval_id": req.ID,
		"message":     "Command approved. Pulse Assistant will now execute it.",
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(response)
}

// HandleApproveAndExecuteInvestigationFix has been moved to enterprise.
// The route now delegates to aiAutoFixEndpoints.HandleApproveInvestigationFix.

// executeInvestigationFix has been moved to enterprise.

// isMCPToolCall, cleanTargetHost, executeMCPToolFix, parseMCPToolCall,
// splitToolArgs, and findAgentForTarget have been moved to
// router_routes_ai_relay.go as package-level functions used by the
// AIAutoFixHandlerDeps adapters.

// updateFindingOutcome updates the investigation outcome on a finding
func (h *AISettingsHandler) updateFindingOutcome(ctx context.Context, orgID, findingID, outcome string) {
	// Get AI service for this org
	svc := h.GetAIService(ctx)
	if svc == nil {
		log.Warn().Str("orgID", orgID).Msg("AI service not available for finding update")
		return
	}

	patrol := svc.GetPatrolService()
	if patrol == nil {
		log.Warn().Str("orgID", orgID).Msg("Patrol service not available for finding update")
		return
	}

	findingsStore := patrol.GetFindings()
	if findingsStore == nil {
		log.Warn().Str("orgID", orgID).Msg("Findings store not available for finding update")
		return
	}

	if !findingsStore.UpdateInvestigationOutcome(findingID, outcome) {
		log.Warn().Str("findingID", findingID).Msg("Finding not found for outcome update")
		return
	}

	log.Info().Str("findingID", findingID).Str("outcome", outcome).Msg("Updated finding investigation outcome")
}

// HandleDenyCommand denies a pending command.
func (h *AISettingsHandler) HandleDenyCommand(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}
	if !ensureRelayMobileRuntimeRoute(w, r, relayMobileRouteApprovalDeny) {
		return
	}

	// Extract ID from path: /api/ai/approvals/{id}/deny
	path := strings.TrimPrefix(r.URL.Path, "/api/ai/approvals/")
	path = strings.TrimSuffix(path, "/deny")
	approvalID := strings.TrimSuffix(path, "/")

	if approvalID == "" {
		writeErrorResponse(w, http.StatusBadRequest, "missing_id", "Approval ID is required", nil)
		return
	}

	// Parse optional reason from body
	var body struct {
		Reason string `json:"reason"`
	}
	if r.Body != nil {
		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
			log.Warn().Err(err).Msg("Failed to decode deny request body")
		}
	}

	store := approval.GetStore()
	if store == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Approval store not initialized", nil)
		return
	}
	orgID := approval.NormalizeOrgID(GetOrgID(r.Context()))
	existingReq, ok := store.GetApproval(approvalID)
	if !ok || !approval.BelongsToOrg(existingReq, orgID) {
		writeErrorResponse(w, http.StatusNotFound, "not_found", "Approval request not found", nil)
		return
	}

	username := getAuthUsername(h.getConfig(r.Context()), r)
	if username == "" {
		username = "anonymous"
	}

	req, err := store.Deny(approvalID, username, body.Reason)
	if err != nil {
		writeErrorResponse(w, http.StatusBadRequest, "denial_failed", err.Error(), nil)
		return
	}

	// Log audit event
	LogAuditEvent("ai_command_denied", username, GetClientIP(r), r.URL.Path, true,
		fmt.Sprintf("Denied command: %s (reason: %s)", truncateForLog(req.Command, 100), body.Reason))

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]interface{}{
		"denied":  true,
		"request": req,
		"message": "Command denied.",
	})
}

// truncateForLog truncates a string for logging purposes.
func truncateForLog(s string, maxLen int) string {
	if len(s) <= maxLen {
		return s
	}
	return s[:maxLen] + "..."
}

// PatrolAutonomySettings represents the patrol autonomy configuration for API requests
// Uses pointer for FullModeUnlocked to distinguish "not sent" from "sent as false"
type PatrolAutonomySettings struct {
	AutonomyLevel           string `json:"autonomy_level"`               // "monitor", "approval", "assisted", "full"
	FullModeUnlocked        *bool  `json:"full_mode_unlocked,omitempty"` // User has acknowledged Full mode risks (nil = preserve existing)
	InvestigationBudget     int    `json:"investigation_budget"`         // Max turns per investigation (5-30)
	InvestigationTimeoutSec int    `json:"investigation_timeout_sec"`    // Max seconds per investigation (60-1800)
}

// PatrolAutonomyResponse represents the patrol autonomy configuration for API responses
// Uses plain bool for FullModeUnlocked since responses always include the actual value
type PatrolAutonomyResponse struct {
	AutonomyLevel           string `json:"autonomy_level"`
	FullModeUnlocked        bool   `json:"full_mode_unlocked"`
	InvestigationBudget     int    `json:"investigation_budget"`
	InvestigationTimeoutSec int    `json:"investigation_timeout_sec"`
}

// HandleGetPatrolAutonomy returns the current patrol autonomy settings (GET /api/ai/patrol/autonomy)
func (h *AISettingsHandler) HandleGetPatrolAutonomy(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "service_unavailable", "Pulse Patrol service not available", nil)
		return
	}
	cfg := aiService.GetConfig()
	if cfg == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_configured", "Pulse Patrol not configured", nil)
		return
	}

	autonomyLevel := cfg.GetPatrolAutonomyLevel()
	// Community tier lock: without ai_autofix, patrol autonomy is findings-only ("monitor").
	// If config contains a higher level from a previous Pro/trial period, clamp the effective
	// value at read time so the UI reflects runtime enforcement.
	hasAutoFix := aiService.HasLicenseFeature(featureAIAutoFixValue)
	if !hasAutoFix && autonomyLevel != config.PatrolAutonomyMonitor {
		autonomyLevel = config.PatrolAutonomyMonitor
	}

	settings := PatrolAutonomyResponse{
		AutonomyLevel:           autonomyLevel,
		FullModeUnlocked:        cfg.PatrolFullModeUnlocked,
		InvestigationBudget:     cfg.GetPatrolInvestigationBudget(),
		InvestigationTimeoutSec: int(cfg.GetPatrolInvestigationTimeout().Seconds()),
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(settings)
}

// HandleUpdatePatrolAutonomy has been moved to enterprise.
// The route now delegates to aiAutoFixEndpoints.HandleUpdatePatrolAutonomy.

// maxFindingIDLength is the maximum allowed length for finding IDs in URL paths.
// Real finding IDs are 16 hex chars (SHA256[:8]), but we accept up to 256 for
// forward compatibility with any future ID scheme.
const maxFindingIDLength = 256

// HandleGetInvestigation returns investigation details for a finding (GET /api/ai/findings/{id}/investigation)
func (h *AISettingsHandler) HandleGetInvestigation(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Extract finding ID from path
	findingID := strings.TrimPrefix(r.URL.Path, "/api/ai/findings/")
	findingID = strings.TrimSuffix(findingID, "/investigation")
	if findingID == "" {
		writeErrorResponse(w, http.StatusBadRequest, "missing_id", "Finding ID is required", nil)
		return
	}
	if len(findingID) > maxFindingIDLength {
		writeErrorResponse(w, http.StatusBadRequest, "invalid_id", "Finding ID is too long", nil)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Patrol service not initialized", nil)
		return
	}
	patrol := aiService.GetPatrolService()
	if patrol == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Patrol service not initialized", nil)
		return
	}

	// Get investigation from orchestrator
	orchestrator := patrol.GetInvestigationOrchestrator()
	if orchestrator == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Investigation orchestrator not initialized", nil)
		return
	}

	investigation := orchestrator.GetInvestigationByFinding(findingID)
	if investigation == nil {
		writeErrorResponse(w, http.StatusNotFound, "not_found", "No investigation found for this finding", nil)
		return
	}
	normalizedInvestigation := investigation.NormalizeCollections()

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(normalizedInvestigation)
}

// HandleReapproveInvestigationFix has been moved to enterprise.
// The route now delegates to aiAutoFixEndpoints.HandleReapproveInvestigationFix.

// HandleGetInvestigationMessages returns chat messages for an investigation (GET /api/ai/findings/{id}/investigation/messages)
func (h *AISettingsHandler) HandleGetInvestigationMessages(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Extract finding ID from path
	findingID := strings.TrimPrefix(r.URL.Path, "/api/ai/findings/")
	findingID = strings.TrimSuffix(findingID, "/investigation/messages")
	if findingID == "" {
		writeErrorResponse(w, http.StatusBadRequest, "missing_id", "Finding ID is required", nil)
		return
	}
	if len(findingID) > maxFindingIDLength {
		writeErrorResponse(w, http.StatusBadRequest, "invalid_id", "Finding ID is too long", nil)
		return
	}

	aiService := h.GetAIService(r.Context())
	if aiService == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Patrol service not initialized", nil)
		return
	}
	patrol := aiService.GetPatrolService()
	if patrol == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Patrol service not initialized", nil)
		return
	}

	// Get investigation from orchestrator
	orchestrator := patrol.GetInvestigationOrchestrator()
	if orchestrator == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Investigation orchestrator not initialized", nil)
		return
	}

	investigation := orchestrator.GetInvestigationByFinding(findingID)
	if investigation == nil {
		writeErrorResponse(w, http.StatusNotFound, "not_found", "No investigation found for this finding", nil)
		return
	}

	// Get chat messages for the investigation session
	chatService := aiService.GetChatService()
	if chatService == nil {
		writeErrorResponse(w, http.StatusServiceUnavailable, "not_initialized", "Chat service not initialized", nil)
		return
	}

	messages, err := chatService.GetMessages(r.Context(), investigation.SessionID)
	if err != nil {
		writeErrorResponse(w, http.StatusInternalServerError, "fetch_failed", "Failed to get investigation messages", nil)
		return
	}
	for i := range messages {
		messages[i] = messages[i].NormalizeCollections()
	}
	normalizedInvestigation := investigation.NormalizeCollections()

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]interface{}{
		"investigation_id": normalizedInvestigation.ID,
		"session_id":       normalizedInvestigation.SessionID,
		"messages":         messages,
	})
}

// HandleReinvestigateFinding has been moved to enterprise.
// The route now delegates to aiAutoFixEndpoints.HandleReinvestigateFinding.