network-manager.ts•34.6 kB
import { EventEmitter } from 'events';
import * as crypto from 'crypto';
import { IncomingMessage, ServerResponse } from 'http';
export interface NetworkTopology {
id: string;
name: string;
type: 'mesh' | 'hub-spoke' | 'ring' | 'tree' | 'hybrid';
regions: NetworkRegion[];
connections: NetworkConnection[];
policies: NetworkPolicy[];
redundancy: RedundancyConfig;
monitoring: NetworkMonitoring;
security: NetworkSecurity;
created: Date;
modified: Date;
}
export interface NetworkRegion {
id: string;
name: string;
location: GeographicLocation;
provider: CloudProvider;
zones: AvailabilityZone[];
capacity: NetworkCapacity;
latency: LatencyMap;
status: 'active' | 'degraded' | 'offline' | 'maintenance';
lastUpdated: Date;
}
export interface GeographicLocation {
continent: string;
country: string;
region: string;
city: string;
coordinates: {
latitude: number;
longitude: number;
};
timezone: string;
}
export interface CloudProvider {
name: string;
type: 'aws' | 'azure' | 'gcp' | 'alibaba' | 'oracle' | 'on-premise' | 'hybrid';
credentials: any;
endpoints: ServiceEndpoint[];
limits: ProviderLimits;
}
export interface ServiceEndpoint {
service: string;
url: string;
region: string;
authenticated: boolean;
}
export interface ProviderLimits {
bandwidth: number; // Mbps
instances: number;
storage: number; // GB
networks: number;
loadBalancers: number;
}
export interface AvailabilityZone {
id: string;
name: string;
region: string;
datacenters: Datacenter[];
capacity: ZoneCapacity;
status: 'available' | 'limited' | 'unavailable';
}
export interface Datacenter {
id: string;
name: string;
location: GeographicLocation;
capacity: DatacenterCapacity;
connectivity: ConnectivityInfo;
power: PowerInfo;
cooling: CoolingInfo;
security: PhysicalSecurity;
}
export interface DatacenterCapacity {
totalRacks: number;
usedRacks: number;
totalPower: number; // kW
usedPower: number; // kW
totalCooling: number; // BTU/hr
usedCooling: number; // BTU/hr
}
export interface ConnectivityInfo {
uplinks: NetworkUplink[];
internalBandwidth: number; // Gbps
externalBandwidth: number; // Gbps
carriers: string[];
peering: PeeringInfo[];
}
export interface NetworkUplink {
id: string;
provider: string;
capacity: number; // Mbps
redundancy: boolean;
latency: number; // ms
status: 'active' | 'standby' | 'failed';
}
export interface PeeringInfo {
asn: number;
name: string;
type: 'public' | 'private';
locations: string[];
}
export interface PowerInfo {
totalCapacity: number; // kW
currentUsage: number; // kW
redundancy: 'N' | 'N+1' | '2N' | '2N+1';
efficiency: number; // PUE
renewable: number; // percentage
}
export interface CoolingInfo {
totalCapacity: number; // BTU/hr
currentUsage: number; // BTU/hr
type: 'air' | 'liquid' | 'hybrid';
efficiency: number; // percentage
}
export interface PhysicalSecurity {
accessControl: boolean;
biometrics: boolean;
surveillance: boolean;
guards: boolean;
barriers: boolean;
certification: string[];
}
export interface NetworkCapacity {
bandwidth: number; // Gbps
throughput: number; // requests/second
connections: number;
storage: number; // GB
compute: ComputeCapacity;
}
export interface ComputeCapacity {
cpu: number; // cores
memory: number; // GB
gpu: number; // units
fpga: number; // units
}
export interface ZoneCapacity {
instances: number;
volume: number; // GB
snapshots: number;
loadBalancers: number;
addresses: number;
}
export interface LatencyMap {
[regionId: string]: number; // milliseconds
}
export interface NetworkConnection {
id: string;
name: string;
type: 'vpn' | 'direct-connect' | 'peering' | 'transit' | 'internet';
source: string; // region ID
destination: string; // region ID
bandwidth: number; // Mbps
latency: number; // ms
cost: number; // per Mbps per hour
redundancy: boolean;
encryption: boolean;
qos: QoSConfig;
status: 'active' | 'standby' | 'failed' | 'maintenance';
metrics: ConnectionMetrics;
}
export interface QoSConfig {
enabled: boolean;
classes: QoSClass[];
defaultClass: string;
congestionControl: string;
bufferSize: number;
}
export interface QoSClass {
name: string;
priority: number;
bandwidth: number; // percentage
latency: number; // ms
jitter: number; // ms
loss: number; // percentage
applications: string[];
}
export interface ConnectionMetrics {
utilization: number; // percentage
throughput: number; // Mbps
latency: number; // ms
jitter: number; // ms
packetLoss: number; // percentage
errors: number;
retransmissions: number;
lastUpdated: Date;
}
export interface NetworkPolicy {
id: string;
name: string;
type: 'routing' | 'security' | 'qos' | 'access' | 'bandwidth';
rules: PolicyRule[];
scope: PolicyScope;
priority: number;
enabled: boolean;
enforced: boolean;
created: Date;
modified: Date;
}
export interface PolicyRule {
id: string;
condition: PolicyCondition;
action: PolicyAction;
order: number;
enabled: boolean;
}
export interface PolicyCondition {
type: 'source' | 'destination' | 'protocol' | 'port' | 'application' | 'time' | 'user' | 'device';
operator: 'equals' | 'contains' | 'matches' | 'in-range' | 'greater-than' | 'less-than';
value: any;
negated: boolean;
}
export interface PolicyAction {
type: 'allow' | 'deny' | 'route' | 'redirect' | 'throttle' | 'prioritize' | 'log' | 'alert';
parameters: Record<string, any>;
}
export interface PolicyScope {
regions: string[];
networks: string[];
applications: string[];
users: string[];
timeRange?: {
start: string;
end: string;
timezone: string;
};
}
export interface RedundancyConfig {
level: 'none' | 'basic' | 'full' | 'geo-redundant';
automaticFailover: boolean;
failoverTime: number; // seconds
healthCheckInterval: number; // seconds
backupRegions: string[];
dataReplication: 'sync' | 'async' | 'multi-sync';
}
export interface NetworkMonitoring {
enabled: boolean;
agents: MonitoringAgent[];
metrics: MonitoringMetric[];
alerts: AlertRule[];
dashboards: Dashboard[];
retention: number; // days
}
export interface MonitoringAgent {
id: string;
name: string;
type: 'synthetic' | 'real-user' | 'infrastructure' | 'application';
location: string;
targets: string[];
frequency: number; // seconds
configuration: Record<string, any>;
status: 'active' | 'inactive' | 'error';
}
export interface MonitoringMetric {
name: string;
type: 'gauge' | 'counter' | 'histogram' | 'summary';
unit: string;
description: string;
tags: string[];
retention: number; // days
}
export interface AlertRule {
id: string;
name: string;
metric: string;
condition: string;
threshold: number;
duration: number; // seconds
severity: 'low' | 'medium' | 'high' | 'critical';
channels: string[];
enabled: boolean;
}
export interface Dashboard {
id: string;
name: string;
description: string;
widgets: DashboardWidget[];
layout: string;
shared: boolean;
owner: string;
}
export interface DashboardWidget {
id: string;
type: 'chart' | 'table' | 'metric' | 'map' | 'text';
title: string;
position: { x: number; y: number; width: number; height: number };
configuration: Record<string, any>;
}
export interface NetworkSecurity {
firewall: FirewallConfig;
ddosProtection: DDoSProtectionConfig;
encryption: EncryptionConfig;
authentication: AuthenticationConfig;
monitoring: SecurityMonitoring;
}
export interface FirewallConfig {
enabled: boolean;
type: 'stateful' | 'stateless' | 'hybrid';
rules: FirewallRule[];
defaultAction: 'allow' | 'deny';
logging: boolean;
}
export interface FirewallRule {
id: string;
name: string;
source: string;
destination: string;
protocol: string;
port: string;
action: 'allow' | 'deny' | 'redirect';
priority: number;
enabled: boolean;
}
export interface DDoSProtectionConfig {
enabled: boolean;
type: 'cloud' | 'on-premise' | 'hybrid';
thresholds: DDoSThreshold[];
mitigation: DDoSMitigation[];
whitelist: string[];
blacklist: string[];
}
export interface DDoSThreshold {
metric: string;
threshold: number;
duration: number; // seconds
action: string;
}
export interface DDoSMitigation {
type: 'rate-limit' | 'block' | 'challenge' | 'redirect';
parameters: Record<string, any>;
duration: number; // seconds
}
export interface EncryptionConfig {
inTransit: {
enabled: boolean;
protocols: string[];
ciphers: string[];
keyExchange: string[];
};
atRest: {
enabled: boolean;
algorithm: string;
keyManagement: string;
rotation: number; // days
};
}
export interface AuthenticationConfig {
enabled: boolean;
methods: string[];
mfa: boolean;
certificates: boolean;
tokenLifetime: number; // seconds
}
export interface SecurityMonitoring {
enabled: boolean;
intrusion: boolean;
anomaly: boolean;
threat: boolean;
compliance: boolean;
reporting: boolean;
}
export interface TrafficFlow {
id: string;
source: NetworkNode;
destination: NetworkNode;
protocol: string;
port: number;
bandwidth: number; // Mbps
latency: number; // ms
path: string[];
qos: string;
encrypted: boolean;
startTime: Date;
endTime?: Date;
bytes: number;
packets: number;
status: 'active' | 'completed' | 'failed';
}
export interface NetworkNode {
id: string;
type: 'server' | 'router' | 'switch' | 'firewall' | 'load-balancer' | 'gateway';
region: string;
zone: string;
address: string;
interfaces: NetworkInterface[];
routes: Route[];
policies: string[];
}
export interface NetworkInterface {
name: string;
type: 'ethernet' | 'wireless' | 'fiber' | 'virtual';
address: string;
subnet: string;
mtu: number;
speed: number; // Mbps
duplex: 'half' | 'full';
status: 'up' | 'down' | 'testing';
}
export interface Route {
destination: string;
gateway: string;
interface: string;
metric: number;
protocol: string;
age: number; // seconds
}
export interface NetworkEvent {
id: string;
timestamp: Date;
type: 'connection' | 'disconnection' | 'failure' | 'recovery' | 'maintenance' | 'attack';
severity: 'info' | 'warning' | 'error' | 'critical';
source: string;
description: string;
impact: string;
resolution?: string;
metadata: Record<string, any>;
}
export class NetworkManager extends EventEmitter {
private topologies = new Map<string, NetworkTopology>();
private connections = new Map<string, NetworkConnection>();
private flows = new Map<string, TrafficFlow>();
private events: NetworkEvent[] = [];
private monitoringInterval: NodeJS.Timeout | null = null;
private healthCheckInterval: NodeJS.Timeout | null = null;
private metricsCollection: NodeJS.Timeout | null = null;
constructor() {
super();
this.startMonitoring();
this.startHealthChecks();
this.startMetricsCollection();
}
createTopology(config: Omit<NetworkTopology, 'id' | 'created' | 'modified'>): string {
const topology: NetworkTopology = {
id: crypto.randomUUID(),
created: new Date(),
modified: new Date(),
...config
};
this.topologies.set(topology.id, topology);
// Initialize connections
for (const connection of topology.connections) {
this.connections.set(connection.id, connection);
}
this.emit('topology-created', topology);
return topology.id;
}
updateTopology(topologyId: string, updates: Partial<NetworkTopology>): boolean {
const topology = this.topologies.get(topologyId);
if (!topology) {
return false;
}
Object.assign(topology, updates);
topology.modified = new Date();
this.emit('topology-updated', topology);
return true;
}
addConnection(connection: NetworkConnection): void {
this.connections.set(connection.id, connection);
// Add to topology if it exists
for (const topology of this.topologies.values()) {
if (topology.regions.some(r => r.id === connection.source) &&
topology.regions.some(r => r.id === connection.destination)) {
topology.connections.push(connection);
topology.modified = new Date();
break;
}
}
this.emit('connection-added', connection);
}
removeConnection(connectionId: string): boolean {
const connection = this.connections.get(connectionId);
if (!connection) {
return false;
}
this.connections.delete(connectionId);
// Remove from topologies
for (const topology of this.topologies.values()) {
topology.connections = topology.connections.filter(c => c.id !== connectionId);
topology.modified = new Date();
}
this.emit('connection-removed', { connectionId });
return true;
}
async establishConnection(sourceRegion: string, destinationRegion: string, config: Partial<NetworkConnection> = {}): Promise<string> {
const connectionId = crypto.randomUUID();
const connection: NetworkConnection = {
id: connectionId,
name: `${sourceRegion}-${destinationRegion}`,
type: 'vpn',
source: sourceRegion,
destination: destinationRegion,
bandwidth: 1000, // 1 Gbps default
latency: 0,
cost: 0.1,
redundancy: false,
encryption: true,
qos: {
enabled: false,
classes: [],
defaultClass: 'best-effort',
congestionControl: 'cubic',
bufferSize: 1024
},
status: 'active',
metrics: {
utilization: 0,
throughput: 0,
latency: 0,
jitter: 0,
packetLoss: 0,
errors: 0,
retransmissions: 0,
lastUpdated: new Date()
},
...config
};
// Measure initial latency
connection.latency = await this.measureLatency(sourceRegion, destinationRegion);
this.addConnection(connection);
this.emit('connection-established', connection);
return connectionId;
}
async measureLatency(sourceRegion: string, destinationRegion: string): Promise<number> {
// Simulate latency measurement based on geographic distance
const source = this.findRegion(sourceRegion);
const destination = this.findRegion(destinationRegion);
if (!source || !destination) {
return 100; // Default latency
}
const distance = this.calculateDistance(
source.location.coordinates,
destination.location.coordinates
);
// Approximate latency: ~1ms per 100km + base latency
return Math.round(distance / 100 + 10);
}
private findRegion(regionId: string): NetworkRegion | null {
for (const topology of this.topologies.values()) {
const region = topology.regions.find(r => r.id === regionId);
if (region) {
return region;
}
}
return null;
}
private calculateDistance(coord1: { latitude: number; longitude: number }, coord2: { latitude: number; longitude: number }): number {
const R = 6371; // Earth's radius in kilometers
const dLat = this.toRadians(coord2.latitude - coord1.latitude);
const dLon = this.toRadians(coord2.longitude - coord1.longitude);
const a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(this.toRadians(coord1.latitude)) * Math.cos(this.toRadians(coord2.latitude)) *
Math.sin(dLon / 2) * Math.sin(dLon / 2);
const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return R * c;
}
private toRadians(degrees: number): number {
return degrees * (Math.PI / 180);
}
startTrafficFlow(source: NetworkNode, destination: NetworkNode, config: Partial<TrafficFlow> = {}): string {
const flowId = crypto.randomUUID();
const flow: TrafficFlow = {
id: flowId,
source,
destination,
protocol: 'TCP',
port: 80,
bandwidth: 10, // Mbps
latency: 0,
path: [],
qos: 'best-effort',
encrypted: false,
startTime: new Date(),
bytes: 0,
packets: 0,
status: 'active',
...config
};
// Calculate optimal path
flow.path = this.calculateOptimalPath(source, destination);
flow.latency = this.calculatePathLatency(flow.path);
this.flows.set(flowId, flow);
this.emit('traffic-flow-started', flow);
return flowId;
}
private calculateOptimalPath(source: NetworkNode, destination: NetworkNode): string[] {
// Simplified path calculation - would use proper routing algorithms
const path = [source.id];
// Find intermediate nodes based on regions and connections
const sourceRegion = source.region;
const destinationRegion = destination.region;
if (sourceRegion !== destinationRegion) {
// Find connection between regions
const connection = Array.from(this.connections.values()).find(
c => (c.source === sourceRegion && c.destination === destinationRegion) ||
(c.source === destinationRegion && c.destination === sourceRegion)
);
if (connection) {
path.push(`connection:${connection.id}`);
}
}
path.push(destination.id);
return path;
}
private calculatePathLatency(path: string[]): number {
let totalLatency = 0;
for (const nodeId of path) {
if (nodeId.startsWith('connection:')) {
const connectionId = nodeId.substring(11);
const connection = this.connections.get(connectionId);
if (connection) {
totalLatency += connection.latency;
}
} else {
// Add node processing latency
totalLatency += 1; // 1ms per hop
}
}
return totalLatency;
}
stopTrafficFlow(flowId: string): boolean {
const flow = this.flows.get(flowId);
if (!flow) {
return false;
}
flow.status = 'completed';
flow.endTime = new Date();
this.emit('traffic-flow-stopped', flow);
return true;
}
applyNetworkPolicy(policy: NetworkPolicy): void {
// Apply policy to relevant topologies
for (const topology of this.topologies.values()) {
if (policy.scope.regions.length === 0 ||
policy.scope.regions.some(regionId => topology.regions.some(r => r.id === regionId))) {
topology.policies.push(policy);
topology.modified = new Date();
}
}
this.emit('policy-applied', policy);
}
removeNetworkPolicy(policyId: string): boolean {
let removed = false;
for (const topology of this.topologies.values()) {
const initialLength = topology.policies.length;
topology.policies = topology.policies.filter(p => p.id !== policyId);
if (topology.policies.length !== initialLength) {
topology.modified = new Date();
removed = true;
}
}
if (removed) {
this.emit('policy-removed', { policyId });
}
return removed;
}
async performFailover(sourceRegion: string, targetRegion: string): Promise<boolean> {
const source = this.findRegion(sourceRegion);
const target = this.findRegion(targetRegion);
if (!source || !target) {
return false;
}
try {
// Mark source as degraded
source.status = 'degraded';
// Redirect traffic to target
const activeFlows = Array.from(this.flows.values())
.filter(f => f.status === 'active' && f.source.region === sourceRegion);
for (const flow of activeFlows) {
// Update flow destination region
flow.destination.region = targetRegion;
flow.path = this.calculateOptimalPath(flow.source, flow.destination);
flow.latency = this.calculatePathLatency(flow.path);
}
// Log failover event
this.logEvent({
type: 'failure',
severity: 'warning',
source: sourceRegion,
description: `Failover from ${sourceRegion} to ${targetRegion}`,
impact: `${activeFlows.length} traffic flows redirected`,
metadata: { targetRegion, flowCount: activeFlows.length }
});
this.emit('failover-completed', {
sourceRegion,
targetRegion,
affectedFlows: activeFlows.length
});
return true;
} catch (error) {
this.logEvent({
type: 'failure',
severity: 'error',
source: sourceRegion,
description: `Failover failed: ${(error as Error).message}`,
impact: 'Traffic may be disrupted',
metadata: { error: (error as Error).message }
});
return false;
}
}
async performLoadBalancing(regionId: string, algorithm: 'round-robin' | 'least-connections' | 'weighted' | 'geographic' = 'round-robin'): Promise<void> {
const region = this.findRegion(regionId);
if (!region) {
return;
}
const activeFlows = Array.from(this.flows.values())
.filter(f => f.status === 'active' && f.destination.region === regionId);
switch (algorithm) {
case 'round-robin':
this.distributeRoundRobin(activeFlows, region);
break;
case 'least-connections':
this.distributeLeastConnections(activeFlows, region);
break;
case 'weighted':
this.distributeWeighted(activeFlows, region);
break;
case 'geographic':
this.distributeGeographic(activeFlows, region);
break;
}
this.emit('load-balancing-applied', {
regionId,
algorithm,
affectedFlows: activeFlows.length
});
}
private distributeRoundRobin(flows: TrafficFlow[], region: NetworkRegion): void {
const zones = region.zones.filter(z => z.status === 'available');
if (zones.length === 0) return;
flows.forEach((flow, index) => {
const targetZone = zones[index % zones.length];
flow.destination.zone = targetZone.id;
});
}
private distributeLeastConnections(flows: TrafficFlow[], region: NetworkRegion): void {
const zones = region.zones.filter(z => z.status === 'available');
if (zones.length === 0) return;
// Count current connections per zone
const connectionCounts = new Map<string, number>();
zones.forEach(zone => connectionCounts.set(zone.id, 0));
flows.forEach(flow => {
if (flow.destination.zone) {
const current = connectionCounts.get(flow.destination.zone) || 0;
connectionCounts.set(flow.destination.zone, current + 1);
}
});
// Redistribute to least loaded zones
flows.forEach(flow => {
const leastLoadedZone = zones.reduce((min, zone) => {
const minCount = connectionCounts.get(min.id) || 0;
const zoneCount = connectionCounts.get(zone.id) || 0;
return zoneCount < minCount ? zone : min;
});
flow.destination.zone = leastLoadedZone.id;
const current = connectionCounts.get(leastLoadedZone.id) || 0;
connectionCounts.set(leastLoadedZone.id, current + 1);
});
}
private distributeWeighted(flows: TrafficFlow[], region: NetworkRegion): void {
const zones = region.zones.filter(z => z.status === 'available');
if (zones.length === 0) return;
// Simple weight distribution based on capacity
const totalCapacity = zones.reduce((sum, zone) => sum + zone.capacity.instances, 0);
flows.forEach(flow => {
let random = Math.random() * totalCapacity;
for (const zone of zones) {
random -= zone.capacity.instances;
if (random <= 0) {
flow.destination.zone = zone.id;
break;
}
}
});
}
private distributeGeographic(flows: TrafficFlow[], region: NetworkRegion): void {
const zones = region.zones.filter(z => z.status === 'available');
if (zones.length === 0) return;
flows.forEach(flow => {
// Find closest zone based on source location
// This is a simplified implementation
const closestZone = zones[0]; // Would calculate actual distance
flow.destination.zone = closestZone.id;
});
}
private startMonitoring(): void {
this.monitoringInterval = setInterval(async () => {
await this.collectNetworkMetrics();
this.detectAnomalies();
}, 30000); // Every 30 seconds
}
private async collectNetworkMetrics(): Promise<void> {
// Update connection metrics
for (const connection of this.connections.values()) {
await this.updateConnectionMetrics(connection);
}
// Update flow metrics
for (const flow of this.flows.values()) {
if (flow.status === 'active') {
this.updateFlowMetrics(flow);
}
}
this.emit('metrics-collected', {
connections: this.connections.size,
flows: this.flows.size,
timestamp: new Date()
});
}
private async updateConnectionMetrics(connection: NetworkConnection): Promise<void> {
// Simulate metric collection
connection.metrics.utilization = Math.random() * 100;
connection.metrics.throughput = connection.bandwidth * (connection.metrics.utilization / 100);
connection.metrics.latency = connection.latency + (Math.random() * 10 - 5); // ±5ms jitter
connection.metrics.jitter = Math.random() * 5;
connection.metrics.packetLoss = Math.random() * 0.1; // Up to 0.1%
connection.metrics.lastUpdated = new Date();
// Update connection status based on metrics
if (connection.metrics.packetLoss > 1 || connection.metrics.latency > connection.latency * 2) {
connection.status = 'degraded';
} else if (connection.status === 'degraded' && connection.metrics.packetLoss < 0.1 && connection.metrics.latency < connection.latency * 1.5) {
connection.status = 'active';
}
}
private updateFlowMetrics(flow: TrafficFlow): void {
// Simulate flow metrics
const elapsed = (Date.now() - flow.startTime.getTime()) / 1000; // seconds
const dataRate = flow.bandwidth * 1024 * 1024 / 8; // bytes per second
flow.bytes += dataRate;
flow.packets += Math.floor(dataRate / 1500); // Assuming 1500 byte packets
}
private detectAnomalies(): void {
// Detect high latency
for (const connection of this.connections.values()) {
if (connection.metrics.latency > connection.latency * 3) {
this.logEvent({
type: 'failure',
severity: 'warning',
source: connection.id,
description: `High latency detected: ${connection.metrics.latency}ms`,
impact: 'Degraded performance',
metadata: {
expectedLatency: connection.latency,
actualLatency: connection.metrics.latency
}
});
}
}
// Detect high packet loss
for (const connection of this.connections.values()) {
if (connection.metrics.packetLoss > 1) {
this.logEvent({
type: 'failure',
severity: 'error',
source: connection.id,
description: `High packet loss detected: ${connection.metrics.packetLoss}%`,
impact: 'Connection quality degraded',
metadata: { packetLoss: connection.metrics.packetLoss }
});
}
}
}
private startHealthChecks(): void {
this.healthCheckInterval = setInterval(async () => {
await this.performHealthChecks();
}, 60000); // Every minute
}
private async performHealthChecks(): Promise<void> {
for (const topology of this.topologies.values()) {
for (const region of topology.regions) {
await this.checkRegionHealth(region);
}
}
}
private async checkRegionHealth(region: NetworkRegion): Promise<void> {
const previousStatus = region.status;
// Simulate health check
const healthScore = Math.random();
if (healthScore > 0.9) {
region.status = 'active';
} else if (healthScore > 0.7) {
region.status = 'degraded';
} else if (healthScore > 0.3) {
region.status = 'offline';
} else {
region.status = 'maintenance';
}
region.lastUpdated = new Date();
if (previousStatus !== region.status) {
this.logEvent({
type: region.status === 'active' ? 'recovery' : 'failure',
severity: region.status === 'offline' ? 'critical' : 'warning',
source: region.id,
description: `Region status changed from ${previousStatus} to ${region.status}`,
impact: region.status === 'offline' ? 'Service disruption' : 'Performance impact',
metadata: { previousStatus, newStatus: region.status }
});
this.emit('region-status-changed', {
regionId: region.id,
previousStatus,
newStatus: region.status
});
}
}
private startMetricsCollection(): void {
this.metricsCollection = setInterval(() => {
this.aggregateMetrics();
this.cleanupOldData();
}, 300000); // Every 5 minutes
}
private aggregateMetrics(): void {
const metrics = {
timestamp: new Date(),
connections: {
total: this.connections.size,
active: Array.from(this.connections.values()).filter(c => c.status === 'active').length,
degraded: Array.from(this.connections.values()).filter(c => c.status === 'degraded').length,
failed: Array.from(this.connections.values()).filter(c => c.status === 'failed').length
},
flows: {
total: this.flows.size,
active: Array.from(this.flows.values()).filter(f => f.status === 'active').length,
completed: Array.from(this.flows.values()).filter(f => f.status === 'completed').length,
failed: Array.from(this.flows.values()).filter(f => f.status === 'failed').length
},
regions: {
total: 0,
active: 0,
degraded: 0,
offline: 0
},
performance: {
averageLatency: 0,
totalThroughput: 0,
averageUtilization: 0
}
};
// Calculate region metrics
for (const topology of this.topologies.values()) {
metrics.regions.total += topology.regions.length;
for (const region of topology.regions) {
switch (region.status) {
case 'active':
metrics.regions.active++;
break;
case 'degraded':
metrics.regions.degraded++;
break;
case 'offline':
metrics.regions.offline++;
break;
}
}
}
// Calculate performance metrics
const activeConnections = Array.from(this.connections.values()).filter(c => c.status === 'active');
if (activeConnections.length > 0) {
metrics.performance.averageLatency = activeConnections.reduce((sum, c) => sum + c.metrics.latency, 0) / activeConnections.length;
metrics.performance.totalThroughput = activeConnections.reduce((sum, c) => sum + c.metrics.throughput, 0);
metrics.performance.averageUtilization = activeConnections.reduce((sum, c) => sum + c.metrics.utilization, 0) / activeConnections.length;
}
this.emit('metrics-aggregated', metrics);
}
private cleanupOldData(): void {
const cutoffTime = Date.now() - 24 * 60 * 60 * 1000; // 24 hours
// Clean up completed flows
for (const [flowId, flow] of this.flows) {
if (flow.status === 'completed' && flow.endTime && flow.endTime.getTime() < cutoffTime) {
this.flows.delete(flowId);
}
}
// Clean up old events
this.events = this.events.filter(event => event.timestamp.getTime() > cutoffTime);
}
private logEvent(eventData: Omit<NetworkEvent, 'id' | 'timestamp'>): void {
const event: NetworkEvent = {
id: crypto.randomUUID(),
timestamp: new Date(),
...eventData
};
this.events.push(event);
this.emit('network-event', event);
}
// Public API methods
getTopologies(): NetworkTopology[] {
return Array.from(this.topologies.values());
}
getTopology(topologyId: string): NetworkTopology | null {
return this.topologies.get(topologyId) || null;
}
getConnections(): NetworkConnection[] {
return Array.from(this.connections.values());
}
getConnection(connectionId: string): NetworkConnection | null {
return this.connections.get(connectionId) || null;
}
getTrafficFlows(): TrafficFlow[] {
return Array.from(this.flows.values());
}
getTrafficFlow(flowId: string): TrafficFlow | null {
return this.flows.get(flowId) || null;
}
getNetworkEvents(limit: number = 100): NetworkEvent[] {
return this.events
.sort((a, b) => b.timestamp.getTime() - a.timestamp.getTime())
.slice(0, limit);
}
getNetworkHealth(): any {
const connections = Array.from(this.connections.values());
const regions = Array.from(this.topologies.values()).flatMap(t => t.regions);
return {
overall: 'healthy', // Would calculate based on various factors
connections: {
total: connections.length,
healthy: connections.filter(c => c.status === 'active').length,
degraded: connections.filter(c => c.status === 'degraded').length,
failed: connections.filter(c => c.status === 'failed').length
},
regions: {
total: regions.length,
active: regions.filter(r => r.status === 'active').length,
degraded: regions.filter(r => r.status === 'degraded').length,
offline: regions.filter(r => r.status === 'offline').length
},
performance: {
averageLatency: connections.reduce((sum, c) => sum + c.metrics.latency, 0) / connections.length || 0,
totalThroughput: connections.reduce((sum, c) => sum + c.metrics.throughput, 0),
averageUtilization: connections.reduce((sum, c) => sum + c.metrics.utilization, 0) / connections.length || 0
}
};
}
getStats(): any {
return {
topologies: this.topologies.size,
connections: this.connections.size,
flows: this.flows.size,
events: this.events.length,
regions: Array.from(this.topologies.values()).reduce((sum, t) => sum + t.regions.length, 0),
zones: Array.from(this.topologies.values()).reduce((sum, t) =>
sum + t.regions.reduce((regionSum, r) => regionSum + r.zones.length, 0), 0)
};
}
destroy(): void {
if (this.monitoringInterval) {
clearInterval(this.monitoringInterval);
}
if (this.healthCheckInterval) {
clearInterval(this.healthCheckInterval);
}
if (this.metricsCollection) {
clearInterval(this.metricsCollection);
}
this.topologies.clear();
this.connections.clear();
this.flows.clear();
this.events = [];
this.removeAllListeners();
}
}