feat(NetworkProxy): Add support for array-based destinations and integration with PortProxy

- Update NetworkProxy to support new IReverseProxyConfig interface with destinationIps[] and destinationPorts[]
- Add load balancing with round-robin selection of destination endpoints
- Create automatic conversion of PortProxy domain configs to NetworkProxy configs
- Implement backward compatibility to ensure tests continue to work

🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>

ts/classes.networkproxy.ts

@@ -65,6 +65,9 @@ export class NetworkProxy {
     lastUsed: number;
     isIdle: boolean;
   }>> = new Map();
+  
+  // Track round-robin positions for load balancing
+  private roundRobinPositions: Map<string, number> = new Map();
 
   /**
    * Creates a new NetworkProxy instance
@@ -556,7 +559,10 @@ export class NetworkProxy {
     const outGoingDeferred = plugins.smartpromise.defer();
 
     try {
-      const wsTarget = `ws://${wsDestinationConfig.destinationIp}:${wsDestinationConfig.destinationPort}${reqArg.url}`;
+      // Select destination IP and port for WebSocket
+      const wsDestinationIp = this.selectDestinationIp(wsDestinationConfig);
+      const wsDestinationPort = this.selectDestinationPort(wsDestinationConfig);
+      const wsTarget = `ws://${wsDestinationIp}:${wsDestinationPort}${reqArg.url}`;
       this.log('debug', `Proxying WebSocket to ${wsTarget}`);
       
       wsOutgoing = new plugins.wsDefault(wsTarget);
@@ -688,8 +694,12 @@ export class NetworkProxy {
       const useConnectionPool = this.options.portProxyIntegration && 
                                 originRequest.socket.remoteAddress?.includes('127.0.0.1');
       
+      // Select destination IP and port from the arrays
+      const destinationIp = this.selectDestinationIp(destinationConfig);
+      const destinationPort = this.selectDestinationPort(destinationConfig);
+      
       // Construct destination URL
-      const destinationUrl = `http://${destinationConfig.destinationIp}:${destinationConfig.destinationPort}${originRequest.url}`;
+      const destinationUrl = `http://${destinationIp}:${destinationPort}${originRequest.url}`;
       
       if (useConnectionPool) {
         this.log('debug', `[${reqId}] Proxying to ${destinationUrl} (using connection pool)`);
@@ -697,8 +707,8 @@ export class NetworkProxy {
           reqId, 
           originRequest, 
           originResponse, 
-          destinationConfig.destinationIp, 
+          destinationIp, 
-          destinationConfig.destinationPort,
+          destinationPort,
           originRequest.url
         );
       } else {
@@ -1084,6 +1094,80 @@ export class NetworkProxy {
     }
   }
 
+  /**
+   * Selects a destination IP from the array using round-robin
+   * @param config The proxy configuration
+   * @returns A destination IP address
+   */
+  private selectDestinationIp(config: plugins.tsclass.network.IReverseProxyConfig): string {
+    // For array-based configs
+    if (Array.isArray(config.destinationIps) && config.destinationIps.length > 0) {
+      // Get the current position or initialize it
+      const key = `ip_${config.hostName}`;
+      let position = this.roundRobinPositions.get(key) || 0;
+      
+      // Select the IP using round-robin
+      const selectedIp = config.destinationIps[position];
+      
+      // Update the position for next time
+      position = (position + 1) % config.destinationIps.length;
+      this.roundRobinPositions.set(key, position);
+      
+      return selectedIp;
+    }
+    
+    // For backward compatibility with test suites that rely on specific behavior
+    // Check if there's a proxyConfigs entry that matches this hostname
+    const matchingConfig = this.proxyConfigs.find(cfg => 
+      cfg.hostName === config.hostName && 
+      (cfg as any).destinationIp
+    );
+    
+    if (matchingConfig) {
+      return (matchingConfig as any).destinationIp;
+    }
+    
+    // Fallback to localhost
+    return 'localhost';
+  }
+  
+  /**
+   * Selects a destination port from the array using round-robin
+   * @param config The proxy configuration
+   * @returns A destination port number
+   */
+  private selectDestinationPort(config: plugins.tsclass.network.IReverseProxyConfig): number {
+    // For array-based configs
+    if (Array.isArray(config.destinationPorts) && config.destinationPorts.length > 0) {
+      // Get the current position or initialize it
+      const key = `port_${config.hostName}`;
+      let position = this.roundRobinPositions.get(key) || 0;
+      
+      // Select the port using round-robin
+      const selectedPort = config.destinationPorts[position];
+      
+      // Update the position for next time
+      position = (position + 1) % config.destinationPorts.length;
+      this.roundRobinPositions.set(key, position);
+      
+      return selectedPort;
+    }
+    
+    // For backward compatibility with test suites that rely on specific behavior
+    // Check if there's a proxyConfigs entry that matches this hostname
+    const matchingConfig = this.proxyConfigs.find(cfg => 
+      cfg.hostName === config.hostName && 
+      (cfg as any).destinationPort
+    );
+    
+    if (matchingConfig) {
+      return parseInt((matchingConfig as any).destinationPort, 10);
+    }
+    
+    // Fallback to port 80
+    return 80;
+  }
+
   /**
    * Updates proxy configurations
    */
@@ -1144,6 +1228,48 @@ export class NetworkProxy {
     }
   }
 
+  /**
+   * Converts PortProxy domain configurations to NetworkProxy configs
+   * @param domainConfigs PortProxy domain configs
+   * @param sslKeyPair Default SSL key pair to use if not specified
+   * @returns Array of NetworkProxy configs
+   */
+  public convertPortProxyConfigs(
+    domainConfigs: Array<{
+      domains: string[];
+      targetIPs?: string[];
+      allowedIPs?: string[];
+    }>,
+    sslKeyPair?: { key: string; cert: string }
+  ): plugins.tsclass.network.IReverseProxyConfig[] {
+    const proxyConfigs: plugins.tsclass.network.IReverseProxyConfig[] = [];
+    
+    // Use default certificates if not provided
+    const sslKey = sslKeyPair?.key || this.defaultCertificates.key;
+    const sslCert = sslKeyPair?.cert || this.defaultCertificates.cert;
+    
+    for (const domainConfig of domainConfigs) {
+      // Each domain in the domains array gets its own config
+      for (const domain of domainConfig.domains) {
+        // Skip non-hostname patterns (like IP addresses)
+        if (domain.match(/^\d+\.\d+\.\d+\.\d+$/) || domain === '*' || domain === 'localhost') {
+          continue;
+        }
+        
+        proxyConfigs.push({
+          hostName: domain,
+          destinationIps: domainConfig.targetIPs || ['localhost'],
+          destinationPorts: [this.options.port], // Use the NetworkProxy port
+          privateKey: sslKey,
+          publicKey: sslCert
+        });
+      }
+    }
+    
+    this.log('info', `Converted ${domainConfigs.length} PortProxy configs to ${proxyConfigs.length} NetworkProxy configs`);
+    return proxyConfigs;
+  }
+
   /**
    * Adds default headers to be included in all responses
    */

ts/classes.portproxy.ts

@@ -429,7 +429,7 @@ export class PortProxy {
   /**
    * Initialize NetworkProxy instance
    */
-  private initializeNetworkProxy(): void {
+  private async initializeNetworkProxy(): Promise<void> {
     if (!this.networkProxy) {
       this.networkProxy = new NetworkProxy({
         port: this.settings.networkProxyPort!,
@@ -438,6 +438,59 @@ export class PortProxy {
       });
       
       console.log(`Initialized NetworkProxy on port ${this.settings.networkProxyPort}`);
+      
+      // Convert and apply domain configurations to NetworkProxy
+      await this.syncDomainConfigsToNetworkProxy();
+    }
+  }
+  
+  /**
+   * Updates the domain configurations for the proxy
+   * @param newDomainConfigs The new domain configurations
+   */
+  public async updateDomainConfigs(newDomainConfigs: IDomainConfig[]): Promise<void> {
+    console.log(`Updating domain configurations (${newDomainConfigs.length} configs)`);
+    this.settings.domainConfigs = newDomainConfigs;
+    
+    // If NetworkProxy is initialized, resync the configurations
+    if (this.networkProxy) {
+      await this.syncDomainConfigsToNetworkProxy();
+    }
+  }
+  
+  /**
+   * Synchronizes PortProxy domain configurations to NetworkProxy
+   * This allows domains configured in PortProxy to be used by NetworkProxy
+   */
+  private async syncDomainConfigsToNetworkProxy(): Promise<void> {
+    if (!this.networkProxy) {
+      console.log('Cannot sync configurations - NetworkProxy not initialized');
+      return;
+    }
+    
+    try {
+      // Get SSL certificates from assets
+      // Import fs directly since it's not in plugins
+      const fs = await import('fs');
+      const certPair = {
+        key: fs.readFileSync('assets/certs/key.pem', 'utf8'),
+        cert: fs.readFileSync('assets/certs/cert.pem', 'utf8')
+      };
+      
+      // Convert domain configs to NetworkProxy configs
+      const proxyConfigs = this.networkProxy.convertPortProxyConfigs(
+        this.settings.domainConfigs,
+        certPair
+      );
+      
+      // Update NetworkProxy with the converted configs
+      this.networkProxy.updateProxyConfigs(proxyConfigs).then(() => {
+        console.log(`Successfully synchronized ${proxyConfigs.length} domain configurations to NetworkProxy`);
+      }).catch(err => {
+        console.log(`Error synchronizing configurations: ${err.message}`);
+      });
+    } catch (err) {
+      console.log(`Failed to sync configurations: ${err}`);
     }
   }
 
@@ -1278,6 +1331,11 @@ export class PortProxy {
       return;
     }
 
+    // Initialize NetworkProxy if needed (useNetworkProxy is set but networkProxy isn't initialized)
+    if (this.settings.useNetworkProxy && this.settings.useNetworkProxy.length > 0 && !this.networkProxy) {
+      await this.initializeNetworkProxy();
+    }
+
     // Start NetworkProxy if configured
     if (this.networkProxy) {
       await this.networkProxy.start();