CHORUS/pkg/slurp/distribution/coordinator.go

// Package distribution provides centralized coordination for distributed context operations
package distribution

import (
	"context"
	"fmt"
	"sync"
	"time"

	"chorus/pkg/dht"
	"chorus/pkg/crypto"
	"chorus/pkg/election"
	"chorus/pkg/config"
	"chorus/pkg/ucxl"
	slurpContext "chorus/pkg/slurp/context"
)

// DistributionCoordinator orchestrates distributed context operations across the cluster
type DistributionCoordinator struct {
	mu                  sync.RWMutex
	config              *config.Config
	dht                 *dht.DHT
	roleCrypto          *crypto.RoleCrypto
	election            election.Election
	distributor         ContextDistributor
	replicationMgr      ReplicationManager
	conflictResolver    ConflictResolver
	gossipProtocol      GossipProtocol
	networkMgr          NetworkManager
	
	// Coordination state
	isLeader            bool
	leaderID            string
	coordinationTasks   chan *CoordinationTask
	distributionQueue   chan *DistributionRequest
	roleFilters         map[string]*RoleFilter
	healthMonitors      map[string]*HealthMonitor
	
	// Statistics and metrics
	stats               *CoordinationStatistics
	performanceMetrics  *PerformanceMetrics
	
	// Configuration
	maxConcurrentTasks  int
	healthCheckInterval time.Duration
	leaderElectionTTL   time.Duration
	distributionTimeout time.Duration
}

// CoordinationTask represents a task for the coordinator
type CoordinationTask struct {
	TaskID       string                `json:"task_id"`
	TaskType     CoordinationTaskType  `json:"task_type"`
	Priority     Priority              `json:"priority"`
	CreatedAt    time.Time             `json:"created_at"`
	RequestedBy  string                `json:"requested_by"`
	Payload      interface{}           `json:"payload"`
	Context      context.Context       `json:"-"`
	Callback     func(error)           `json:"-"`
}

// CoordinationTaskType represents different types of coordination tasks
type CoordinationTaskType string

const (
	TaskTypeDistribution    CoordinationTaskType = "distribution"
	TaskTypeReplication     CoordinationTaskType = "replication"
	TaskTypeConflictResolve CoordinationTaskType = "conflict_resolve"
	TaskTypeHealthCheck     CoordinationTaskType = "health_check"
	TaskTypeNetworkRepair   CoordinationTaskType = "network_repair"
	TaskTypeLoadBalance     CoordinationTaskType = "load_balance"
	TaskTypeRoleSync        CoordinationTaskType = "role_sync"
)

// DistributionRequest represents a request for context distribution
type DistributionRequest struct {
	RequestID     string                     `json:"request_id"`
	ContextNode   *slurpContext.ContextNode  `json:"context_node"`
	TargetRoles   []string                   `json:"target_roles"`
	Priority      Priority                   `json:"priority"`
	RequesterID   string                     `json:"requester_id"`
	CreatedAt     time.Time                  `json:"created_at"`
	Options       *DistributionOptions       `json:"options"`
	Callback      func(*DistributionResult, error) `json:"-"`
}

// DistributionOptions contains options for context distribution
type DistributionOptions struct {
	ReplicationFactor    int           `json:"replication_factor"`
	ConsistencyLevel     ConsistencyLevel `json:"consistency_level"`
	EncryptionLevel      crypto.AccessLevel `json:"encryption_level"`
	TTL                  *time.Duration `json:"ttl,omitempty"`
	PreferredZones       []string       `json:"preferred_zones"`
	ExcludedNodes        []string       `json:"excluded_nodes"`
	ConflictResolution   ResolutionType `json:"conflict_resolution"`
}

// DistributionResult represents the result of a distribution operation
type DistributionResult struct {
	RequestID         string                 `json:"request_id"`
	Success           bool                   `json:"success"`
	DistributedNodes  []string               `json:"distributed_nodes"`
	ReplicationFactor int                    `json:"replication_factor"`
	ProcessingTime    time.Duration          `json:"processing_time"`
	Errors            []string               `json:"errors"`
	ConflictResolved  *ConflictResolution    `json:"conflict_resolved,omitempty"`
	CompletedAt       time.Time              `json:"completed_at"`
}

// RoleFilter manages role-based filtering for context access
type RoleFilter struct {
	RoleID              string                `json:"role_id"`
	AccessLevel         crypto.AccessLevel    `json:"access_level"`
	AllowedCompartments []string              `json:"allowed_compartments"`
	FilterRules         []*FilterRule         `json:"filter_rules"`
	LastUpdated         time.Time             `json:"last_updated"`
}

// FilterRule represents a single filtering rule
type FilterRule struct {
	RuleID      string                 `json:"rule_id"`
	RuleType    FilterRuleType         `json:"rule_type"`
	Pattern     string                 `json:"pattern"`
	Action      FilterAction           `json:"action"`
	Metadata    map[string]interface{} `json:"metadata"`
}

// FilterRuleType represents different types of filter rules
type FilterRuleType string

const (
	FilterRuleTypeTag        FilterRuleType = "tag"
	FilterRuleTypePath       FilterRuleType = "path"
	FilterRuleTypeTechnology FilterRuleType = "technology"
	FilterRuleTypeContent    FilterRuleType = "content"
)

// FilterAction represents the action to take when a rule matches
type FilterAction string

const (
	FilterActionAllow   FilterAction = "allow"
	FilterActionDeny    FilterAction = "deny"
	FilterActionModify  FilterAction = "modify"
	FilterActionAudit   FilterAction = "audit"
)

// HealthMonitor monitors the health of a specific component
type HealthMonitor struct {
	ComponentID     string                 `json:"component_id"`
	ComponentType   ComponentType          `json:"component_type"`
	Status          HealthStatus           `json:"status"`
	LastHealthCheck time.Time              `json:"last_health_check"`
	HealthScore     float64                `json:"health_score"`
	Metrics         map[string]interface{} `json:"metrics"`
	AlertThresholds *AlertThresholds       `json:"alert_thresholds"`
}

// ComponentType represents different types of components to monitor
type ComponentType string

const (
	ComponentTypeDHT             ComponentType = "dht"
	ComponentTypeReplication     ComponentType = "replication"
	ComponentTypeGossip          ComponentType = "gossip"
	ComponentTypeNetwork         ComponentType = "network"
	ComponentTypeConflictResolver ComponentType = "conflict_resolver"
)

// AlertThresholds defines thresholds for health alerts
type AlertThresholds struct {
	WarningThreshold  float64 `json:"warning_threshold"`
	CriticalThreshold float64 `json:"critical_threshold"`
	RecoveryThreshold float64 `json:"recovery_threshold"`
}

// CoordinationStatistics tracks coordination performance
type CoordinationStatistics struct {
	TotalTasks          int64         `json:"total_tasks"`
	CompletedTasks      int64         `json:"completed_tasks"`
	FailedTasks         int64         `json:"failed_tasks"`
	QueuedTasks         int64         `json:"queued_tasks"`
	AverageProcessTime  time.Duration `json:"average_process_time"`
	LeaderElections     int64         `json:"leader_elections"`
	LastLeaderChange    time.Time     `json:"last_leader_change"`
	DistributionSuccess float64       `json:"distribution_success_rate"`
	ConflictResolutions int64         `json:"conflict_resolutions"`
	LastUpdated         time.Time     `json:"last_updated"`
}

// PerformanceMetrics tracks detailed performance metrics
type PerformanceMetrics struct {
	ThroughputPerSecond  float64                `json:"throughput_per_second"`
	LatencyPercentiles   map[string]float64     `json:"latency_percentiles"`
	ErrorRateByType      map[string]float64     `json:"error_rate_by_type"`
	ResourceUtilization  map[string]float64     `json:"resource_utilization"`
	NetworkMetrics       *NetworkMetrics        `json:"network_metrics"`
	StorageMetrics       *StorageMetrics        `json:"storage_metrics"`
	LastCalculated       time.Time              `json:"last_calculated"`
}

// NetworkMetrics tracks network-related performance
type NetworkMetrics struct {
	BandwidthUtilization float64       `json:"bandwidth_utilization"`
	AverageLatency       time.Duration `json:"average_latency"`
	PacketLossRate       float64       `json:"packet_loss_rate"`
	ConnectionCount      int           `json:"connection_count"`
	MessageThroughput    float64       `json:"message_throughput"`
}

// StorageMetrics tracks storage-related performance
type StorageMetrics struct {
	TotalContexts        int64   `json:"total_contexts"`
	StorageUtilization   float64 `json:"storage_utilization"`
	CompressionRatio     float64 `json:"compression_ratio"`
	ReplicationEfficiency float64 `json:"replication_efficiency"`
	CacheHitRate         float64 `json:"cache_hit_rate"`
}

// NewDistributionCoordinator creates a new distribution coordinator
func NewDistributionCoordinator(
	config *config.Config,
	dht *dht.DHT,
	roleCrypto *crypto.RoleCrypto,
	election election.Election,
) (*DistributionCoordinator, error) {
	if config == nil {
		return nil, fmt.Errorf("config is required")
	}
	if dht == nil {
		return nil, fmt.Errorf("DHT instance is required")
	}
	if roleCrypto == nil {
		return nil, fmt.Errorf("role crypto instance is required")
	}
	if election == nil {
		return nil, fmt.Errorf("election instance is required")
	}

	// Create distributor
	distributor, err := NewDHTContextDistributor(dht, roleCrypto, election, config)
	if err != nil {
		return nil, fmt.Errorf("failed to create context distributor: %w", err)
	}

	coord := &DistributionCoordinator{
		config:              config,
		dht:                 dht,
		roleCrypto:          roleCrypto,
		election:            election,
		distributor:         distributor,
		coordinationTasks:   make(chan *CoordinationTask, 1000),
		distributionQueue:   make(chan *DistributionRequest, 500),
		roleFilters:         make(map[string]*RoleFilter),
		healthMonitors:      make(map[string]*HealthMonitor),
		maxConcurrentTasks:  10,
		healthCheckInterval: 30 * time.Second,
		leaderElectionTTL:   60 * time.Second,
		distributionTimeout: 30 * time.Second,
		stats: &CoordinationStatistics{
			LastUpdated: time.Now(),
		},
		performanceMetrics: &PerformanceMetrics{
			LatencyPercentiles:  make(map[string]float64),
			ErrorRateByType:     make(map[string]float64),
			ResourceUtilization: make(map[string]float64),
			NetworkMetrics: &NetworkMetrics{},
			StorageMetrics: &StorageMetrics{},
			LastCalculated: time.Now(),
		},
	}

	// Initialize components
	if err := coord.initializeComponents(); err != nil {
		return nil, fmt.Errorf("failed to initialize components: %w", err)
	}

	// Initialize role filters
	coord.initializeRoleFilters()

	// Initialize health monitors
	coord.initializeHealthMonitors()

	return coord, nil
}

// Start starts the distribution coordinator
func (dc *DistributionCoordinator) Start(ctx context.Context) error {
	// Start distributor
	if err := dc.distributor.Start(ctx); err != nil {
		return fmt.Errorf("failed to start distributor: %w", err)
	}

	// Start background workers
	go dc.coordinationWorker(ctx)
	go dc.distributionWorker(ctx)
	go dc.healthMonitorWorker(ctx)
	go dc.leaderElectionWorker(ctx)
	go dc.metricsCollector(ctx)

	return nil
}

// Stop stops the distribution coordinator
func (dc *DistributionCoordinator) Stop(ctx context.Context) error {
	// Stop distributor
	if err := dc.distributor.Stop(ctx); err != nil {
		return fmt.Errorf("failed to stop distributor: %w", err)
	}

	close(dc.coordinationTasks)
	close(dc.distributionQueue)

	return nil
}

// DistributeContext distributes context with coordination
func (dc *DistributionCoordinator) DistributeContext(
	ctx context.Context,
	node *slurpContext.ContextNode,
	roles []string,
	options *DistributionOptions,
) (*DistributionResult, error) {
	// Apply role filtering
	filteredRoles := dc.applyRoleFilters(roles, node)

	// Create distribution request
	request := &DistributionRequest{
		RequestID:   dc.generateRequestID(),
		ContextNode: node,
		TargetRoles: filteredRoles,
		Priority:    PriorityNormal,
		RequesterID: dc.config.Agent.ID,
		CreatedAt:   time.Now(),
		Options:     options,
	}

	if options == nil {
		request.Options = dc.getDefaultDistributionOptions()
	}

	// Execute distribution
	return dc.executeDistribution(ctx, request)
}

// CoordinateReplication coordinates replication across the cluster
func (dc *DistributionCoordinator) CoordinateReplication(
	ctx context.Context,
	address ucxl.Address,
	targetFactor int,
) error {
	task := &CoordinationTask{
		TaskID:      dc.generateTaskID(),
		TaskType:    TaskTypeReplication,
		Priority:    PriorityNormal,
		CreatedAt:   time.Now(),
		RequestedBy: dc.config.Agent.ID,
		Payload: map[string]interface{}{
			"address": address,
			"target_factor": targetFactor,
		},
		Context: ctx,
	}

	return dc.submitTask(task)
}

// ResolveConflicts resolves conflicts in distributed contexts
func (dc *DistributionCoordinator) ResolveConflicts(
	ctx context.Context,
	conflicts []*PotentialConflict,
) ([]*ConflictResolution, error) {
	results := make([]*ConflictResolution, 0, len(conflicts))

	for _, conflict := range conflicts {
		task := &CoordinationTask{
			TaskID:      dc.generateTaskID(),
			TaskType:    TaskTypeConflictResolve,
			Priority:    dc.priorityFromSeverity(conflict.Severity),
			CreatedAt:   time.Now(),
			RequestedBy: dc.config.Agent.ID,
			Payload:     conflict,
			Context:     ctx,
		}

		if err := dc.submitTask(task); err != nil {
			// Log error but continue with other conflicts
			continue
		}
	}

	return results, nil
}

// GetClusterHealth returns the overall health of the cluster
func (dc *DistributionCoordinator) GetClusterHealth() (*ClusterHealth, error) {
	dc.mu.RLock()
	defer dc.mu.RUnlock()

	health := &ClusterHealth{
		OverallStatus:    dc.calculateOverallHealth(),
		NodeCount:        len(dc.dht.GetConnectedPeers()) + 1, // +1 for current node
		HealthyNodes:     0,
		UnhealthyNodes:   0,
		ComponentHealth:  make(map[string]*ComponentHealth),
		LastUpdated:      time.Now(),
		Alerts:           []string{},
		Recommendations:  []string{},
	}

	// Calculate component health
	for componentID, monitor := range dc.healthMonitors {
		health.ComponentHealth[componentID] = &ComponentHealth{
			ComponentType: monitor.ComponentType,
			Status:        monitor.Status,
			HealthScore:   monitor.HealthScore,
			LastCheck:     monitor.LastHealthCheck,
			Metrics:       monitor.Metrics,
		}

		if monitor.Status == HealthHealthy {
			health.HealthyNodes++
		} else {
			health.UnhealthyNodes++
		}
	}

	return health, nil
}

// GetCoordinationStats returns coordination statistics
func (dc *DistributionCoordinator) GetCoordinationStats() (*CoordinationStatistics, error) {
	dc.mu.RLock()
	defer dc.mu.RUnlock()

	// Update real-time stats
	dc.stats.QueuedTasks = int64(len(dc.coordinationTasks) + len(dc.distributionQueue))
	dc.stats.LastUpdated = time.Now()

	return dc.stats, nil
}

// GetPerformanceMetrics returns detailed performance metrics
func (dc *DistributionCoordinator) GetPerformanceMetrics() (*PerformanceMetrics, error) {
	dc.mu.RLock()
	defer dc.mu.RUnlock()

	// Update calculated metrics
	dc.updatePerformanceMetrics()

	return dc.performanceMetrics, nil
}

// Background workers

func (dc *DistributionCoordinator) coordinationWorker(ctx context.Context) {
	// Create worker pool
	workerCount := dc.maxConcurrentTasks
	for i := 0; i < workerCount; i++ {
		go dc.taskWorker(ctx, i)
	}

	// Task dispatcher
	for {
		select {
		case <-ctx.Done():
			return
		case task := <-dc.coordinationTasks:
			if task == nil {
				return // Channel closed
			}
			// Task is picked up by worker pool
		}
	}
}

func (dc *DistributionCoordinator) taskWorker(ctx context.Context, workerID int) {
	for {
		select {
		case <-ctx.Done():
			return
		case task := <-dc.coordinationTasks:
			if task == nil {
				return // Channel closed
			}
			dc.processCoordinationTask(task)
		}
	}
}

func (dc *DistributionCoordinator) distributionWorker(ctx context.Context) {
	for {
		select {
		case <-ctx.Done():
			return
		case request := <-dc.distributionQueue:
			if request == nil {
				return // Channel closed
			}
			result, err := dc.executeDistributionRequest(ctx, request)
			if request.Callback != nil {
				go request.Callback(result, err)
			}
		}
	}
}

func (dc *DistributionCoordinator) healthMonitorWorker(ctx context.Context) {
	ticker := time.NewTicker(dc.healthCheckInterval)
	defer ticker.Stop()

	for {
		select {
		case <-ctx.Done():
			return
		case <-ticker.C:
			dc.performHealthChecks(ctx)
		}
	}
}

func (dc *DistributionCoordinator) leaderElectionWorker(ctx context.Context) {
	ticker := time.NewTicker(dc.leaderElectionTTL / 2)
	defer ticker.Stop()

	for {
		select {
		case <-ctx.Done():
			return
		case <-ticker.C:
			dc.checkLeadershipStatus()
		}
	}
}

func (dc *DistributionCoordinator) metricsCollector(ctx context.Context) {
	ticker := time.NewTicker(60 * time.Second)
	defer ticker.Stop()

	for {
		select {
		case <-ctx.Done():
			return
		case <-ticker.C:
			dc.collectMetrics()
		}
	}
}

// Helper methods

func (dc *DistributionCoordinator) initializeComponents() error {
	var err error

	// Initialize replication manager
	dc.replicationMgr, err = NewReplicationManager(dc.dht, dc.config)
	if err != nil {
		return fmt.Errorf("failed to create replication manager: %w", err)
	}

	// Initialize conflict resolver
	dc.conflictResolver, err = NewConflictResolver(dc.dht, dc.config)
	if err != nil {
		return fmt.Errorf("failed to create conflict resolver: %w", err)
	}

	// Initialize gossip protocol
	dc.gossipProtocol, err = NewGossipProtocol(dc.dht, dc.config)
	if err != nil {
		return fmt.Errorf("failed to create gossip protocol: %w", err)
	}

	// Initialize network manager
	dc.networkMgr, err = NewNetworkManager(dc.dht, dc.config)
	if err != nil {
		return fmt.Errorf("failed to create network manager: %w", err)
	}

	return nil
}

func (dc *DistributionCoordinator) initializeRoleFilters() {
	// Initialize role filters based on configuration
	roles := []string{"senior_architect", "project_manager", "devops_engineer", "backend_developer", "frontend_developer"}
	
	for _, role := range roles {
		dc.roleFilters[role] = &RoleFilter{
			RoleID:              role,
			AccessLevel:         dc.getAccessLevelForRole(role),
			AllowedCompartments: dc.getAllowedCompartments(role),
			FilterRules:         dc.getDefaultFilterRules(role),
			LastUpdated:         time.Now(),
		}
	}
}

func (dc *DistributionCoordinator) initializeHealthMonitors() {
	components := map[string]ComponentType{
		"dht":               ComponentTypeDHT,
		"replication":       ComponentTypeReplication,
		"gossip":           ComponentTypeGossip,
		"network":          ComponentTypeNetwork,
		"conflict_resolver": ComponentTypeConflictResolver,
	}

	for componentID, componentType := range components {
		dc.healthMonitors[componentID] = &HealthMonitor{
			ComponentID:     componentID,
			ComponentType:   componentType,
			Status:          HealthHealthy,
			LastHealthCheck: time.Now(),
			HealthScore:     1.0,
			Metrics:         make(map[string]interface{}),
			AlertThresholds: &AlertThresholds{
				WarningThreshold:  0.8,
				CriticalThreshold: 0.5,
				RecoveryThreshold: 0.9,
			},
		}
	}
}

func (dc *DistributionCoordinator) applyRoleFilters(roles []string, node *slurpContext.ContextNode) []string {
	filtered := []string{}

	for _, role := range roles {
		if filter, exists := dc.roleFilters[role]; exists {
			if dc.passesFilter(filter, node) {
				filtered = append(filtered, role)
			}
		} else {
			// No filter defined, allow by default
			filtered = append(filtered, role)
		}
	}

	return filtered
}

func (dc *DistributionCoordinator) passesFilter(filter *RoleFilter, node *slurpContext.ContextNode) bool {
	// Apply filter rules
	for _, rule := range filter.FilterRules {
		if dc.ruleMatches(rule, node) {
			switch rule.Action {
			case FilterActionDeny:
				return false
			case FilterActionAllow:
				return true
			}
		}
	}

	return true // Default allow if no rules match
}

func (dc *DistributionCoordinator) ruleMatches(rule *FilterRule, node *slurpContext.ContextNode) bool {
	switch rule.RuleType {
	case FilterRuleTypeTag:
		for _, tag := range node.Tags {
			if tag == rule.Pattern {
				return true
			}
		}
	case FilterRuleTypePath:
		return node.Path == rule.Pattern
	case FilterRuleTypeTechnology:
		for _, tech := range node.Technologies {
			if tech == rule.Pattern {
				return true
			}
		}
	}

	return false
}

func (dc *DistributionCoordinator) executeDistribution(ctx context.Context, request *DistributionRequest) (*DistributionResult, error) {
	start := time.Now()

	result := &DistributionResult{
		RequestID:        request.RequestID,
		Success:          false,
		DistributedNodes: []string{},
		ProcessingTime:   0,
		Errors:          []string{},
		CompletedAt:     time.Now(),
	}

	// Execute distribution via distributor
	if err := dc.distributor.DistributeContext(ctx, request.ContextNode, request.TargetRoles); err != nil {
		result.Errors = append(result.Errors, err.Error())
		return result, err
	}

	result.Success = true
	result.ProcessingTime = time.Since(start)
	result.ReplicationFactor = request.Options.ReplicationFactor

	return result, nil
}

// Placeholder implementations for supporting types and methods

// ClusterHealth represents overall cluster health
type ClusterHealth struct {
	OverallStatus   HealthStatus                    `json:"overall_status"`
	NodeCount       int                             `json:"node_count"`
	HealthyNodes    int                             `json:"healthy_nodes"`
	UnhealthyNodes  int                             `json:"unhealthy_nodes"`
	ComponentHealth map[string]*ComponentHealth     `json:"component_health"`
	LastUpdated     time.Time                       `json:"last_updated"`
	Alerts          []string                        `json:"alerts"`
	Recommendations []string                        `json:"recommendations"`
}

// ComponentHealth represents individual component health
type ComponentHealth struct {
	ComponentType ComponentType          `json:"component_type"`
	Status        HealthStatus           `json:"status"`
	HealthScore   float64                `json:"health_score"`
	LastCheck     time.Time              `json:"last_check"`
	Metrics       map[string]interface{} `json:"metrics"`
}

// Placeholder methods - these would have full implementations

func (dc *DistributionCoordinator) generateRequestID() string {
	return fmt.Sprintf("req-%s-%d", dc.config.Agent.ID, time.Now().UnixNano())
}

func (dc *DistributionCoordinator) generateTaskID() string {
	return fmt.Sprintf("task-%s-%d", dc.config.Agent.ID, time.Now().UnixNano())
}

func (dc *DistributionCoordinator) getDefaultDistributionOptions() *DistributionOptions {
	return &DistributionOptions{
		ReplicationFactor:  3,
		ConsistencyLevel:   ConsistencyEventual,
		EncryptionLevel:    crypto.AccessMedium,
		ConflictResolution: ResolutionMerged,
	}
}

func (dc *DistributionCoordinator) getAccessLevelForRole(role string) crypto.AccessLevel {
	// Placeholder implementation
	return crypto.AccessMedium
}

func (dc *DistributionCoordinator) getAllowedCompartments(role string) []string {
	// Placeholder implementation
	return []string{"general"}
}

func (dc *DistributionCoordinator) getDefaultFilterRules(role string) []*FilterRule {
	// Placeholder implementation
	return []*FilterRule{}
}

func (dc *DistributionCoordinator) submitTask(task *CoordinationTask) error {
	select {
	case dc.coordinationTasks <- task:
		return nil
	default:
		return fmt.Errorf("coordination task queue is full")
	}
}

func (dc *DistributionCoordinator) processCoordinationTask(task *CoordinationTask) {
	// Placeholder implementation
}

func (dc *DistributionCoordinator) executeDistributionRequest(ctx context.Context, request *DistributionRequest) (*DistributionResult, error) {
	return dc.executeDistribution(ctx, request)
}

func (dc *DistributionCoordinator) performHealthChecks(ctx context.Context) {
	// Placeholder implementation
}

func (dc *DistributionCoordinator) checkLeadershipStatus() {
	// Placeholder implementation
}

func (dc *DistributionCoordinator) collectMetrics() {
	// Placeholder implementation
}

func (dc *DistributionCoordinator) calculateOverallHealth() HealthStatus {
	// Placeholder implementation
	return HealthHealthy
}

func (dc *DistributionCoordinator) updatePerformanceMetrics() {
	// Placeholder implementation
}

func (dc *DistributionCoordinator) priorityFromSeverity(severity ConflictSeverity) Priority {
	switch severity {
	case SeverityCritical:
		return PriorityCritical
	case SeverityHigh:
		return PriorityHigh
	case SeverityMedium:
		return PriorityNormal
	default:
		return PriorityLow
	}
}