Refactor VPN proxy client implementation

src/server/http/routes/gatewayAutoRoute.ts

@@ -0,0 +1,32 @@
+import type { IncomingMessage, ServerResponse } from 'node:http';
+
+import type { GatewayAutoService } from '../../features/routing/index.js';
+import { HarborError } from '../../../shared/errors.js';
+import { sendJson } from '../response.js';
+
+interface GatewayAutoRouteDependencies {
+  appMode: string;
+  gatewayAuto: Pick<GatewayAutoService, 'setEnabled'>;
+  readBody(req: IncomingMessage): Promise<Record<string, unknown>>;
+  withOperation<T>(kind: string, operation: () => Promise<T>): Promise<T>;
+  readStatePayload(): Promise<Record<string, unknown> & { gatewayAuto?: unknown }>;
+}
+
+export function createGatewayAutoRoute(dependencies: GatewayAutoRouteDependencies) {
+  return {
+    async handle(req: IncomingMessage, res: ServerResponse) {
+      if (req.method !== 'POST' || req.url !== '/api/gateway-auto') return false;
+      if (dependencies.appMode !== 'client') throw new HarborError('REQUEST_INVALID');
+      const { enabled } = await dependencies.readBody(req);
+      if (typeof enabled !== 'boolean') throw new HarborError('REQUEST_INVALID');
+
+      await dependencies.withOperation(
+        'gateway-auto',
+        () => dependencies.gatewayAuto.setEnabled(enabled),
+      );
+      const state = await dependencies.readStatePayload();
+      sendJson(res, 200, { success: true, gatewayAuto: state.gatewayAuto, state });
+      return true;
+    },
+  };
+}