feat: expose dcrouter gateway settings

ts/opsserver/handlers/settings.handler.ts

@@ -2,6 +2,8 @@ import * as plugins from '../../plugins.ts';
 import type { OpsServer } from '../classes.opsserver.ts';
 import * as interfaces from '../../../ts_interfaces/index.ts';
 import { requireAdminIdentity } from '../helpers/guards.ts';
+import { logger } from '../../logging.ts';
+import { getErrorMessage } from '../../utils/error.ts';
 
 export class SettingsHandler {
   public typedrouter = new plugins.typedrequest.TypedRouter();
@@ -65,6 +67,12 @@ export class SettingsHandler {
             }
           }
 
+          if (this.hasExternalGatewaySetting(updates)) {
+            this.refreshExternalGateway().catch((error) => {
+              logger.warn(`External gateway settings refresh failed: ${getErrorMessage(error)}`);
+            });
+          }
+
           const settings = await this.getSettingsObject();
           return { settings };
         },
@@ -93,4 +101,28 @@ export class SettingsHandler {
       ),
     );
   }
+
+  private hasExternalGatewaySetting(settings: Partial<interfaces.data.ISettings>): boolean {
+    return [
+      'dcrouterGatewayUrl',
+      'dcrouterGatewayApiToken',
+      'dcrouterWorkHosterId',
+      'dcrouterTargetHost',
+      'dcrouterTargetPort',
+    ].some((key) => Object.prototype.hasOwnProperty.call(settings, key));
+  }
+
+  private async refreshExternalGateway(): Promise<void> {
+    const onebox = this.opsServerRef.oneboxRef;
+    await onebox.externalGateway.syncDomains();
+
+    const services = onebox.database.getAllServices().filter((service) => service.domain);
+    await Promise.all(services.map(async (service) => {
+      try {
+        await onebox.externalGateway.syncServiceRoute(service);
+      } catch (error) {
+        logger.warn(`Failed to sync external gateway route for ${service.domain}: ${getErrorMessage(error)}`);
+      }
+    }));
+  }
 }