fix(integrations): make client/device counts nullable and test real degradation

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/integrations/src/unifi-os/test/unifi-os-integration.spec.ts

@@ -153,17 +153,31 @@ describe("UnifiOsIntegration getUnifiOsSummaryAsync", () => {
     expect(summary.wan.isp?.measuredAt).toEqual(new Date("2026-09-08T09:10:00Z"));
   });
 
-  test("degrades only the affected block when one local endpoint fails", async () => {
+  test("degrades only the clients block when the clients endpoint fails", async () => {
     mockFetch.mockImplementation(async (url) => {
       const raw = String(url);
-      if (raw.includes("/vpn/servers")) return jsonResponse({ error: "boom" }, 500);
+      if (raw.includes("/clients")) return jsonResponse({ error: "boom" }, 500);
       return routeLocal(raw) ?? jsonResponse({}, 404);
     });
 
     const summary = await createIntegration(localOnlySecrets).getUnifiOsSummaryAsync();
 
-    expect(summary.clients.total).toBe(2);
-    expect(summary.devices.total).toBe(2);
+    expect(summary.clients).toBeNull();
+    expect(summary.devices).toEqual({ total: 2, online: 1, offline: 1, firmwareUpdatable: 1 });
+    expect(summary.gateway).not.toBeNull();
+  });
+
+  test("degrades only the devices block when the devices endpoint fails", async () => {
+    mockFetch.mockImplementation(async (url) => {
+      const raw = String(url);
+      if (raw.includes("/devices") && !raw.includes("/statistics")) return jsonResponse({ error: "boom" }, 500);
+      return routeLocal(raw) ?? jsonResponse({}, 404);
+    });
+
+    const summary = await createIntegration(localOnlySecrets).getUnifiOsSummaryAsync();
+
+    expect(summary.devices).toBeNull();
+    expect(summary.clients).toEqual({ total: 2, wired: 1, wireless: 1, vpn: 0, guests: 0 });
   });
 
   test("keeps clients and devices when the gateway cannot be identified", async () => {
@@ -192,6 +206,6 @@ describe("UnifiOsIntegration getUnifiOsSummaryAsync", () => {
     expect(summary.gateway).toBeNull();
     expect(summary.wan.throughput).toBeNull();
     expect(summary.wan.state).toBe("unknown");
-    expect(summary.clients.total).toBe(2);
+    expect(summary.clients).toEqual({ total: 2, wired: 1, wireless: 1, vpn: 0, guests: 0 });
   });
 });

packages/integrations/src/unifi-os/unifi-os-api.ts

@@ -11,7 +11,6 @@ import {
   unifiOsDeviceStatisticsSchema,
   unifiOsInfoSchema,
   unifiOsSiteSchema,
-  unifiOsVpnServerSchema,
 } from "./unifi-os-types";
 
 export type UnifiOsFetch = (url: string, init?: RequestInit & { timeout?: number }) => Promise<Response>;
@@ -27,7 +26,6 @@ const PARSE_ERROR_MESSAGE = "Invalid UniFi OS response";
 const clientPageSchema = createUnifiOsPageSchema(unifiOsClientSchema);
 const devicePageSchema = createUnifiOsPageSchema(unifiOsDeviceSchema);
 const sitePageSchema = createUnifiOsPageSchema(unifiOsSiteSchema);
-const vpnServerPageSchema = createUnifiOsPageSchema(unifiOsVpnServerSchema);
 
 /**
  * Client de l'API d'intégration locale d'UniFi OS.
@@ -70,11 +68,6 @@ export class UnifiOsApi {
     );
   }
 
-  public async getVpnServersAsync(siteId: string): Promise<{ enabled: boolean }[]> {
-    const page = await this.requestAsync(`/sites/${encodeURIComponent(siteId)}/vpn/servers`, vpnServerPageSchema);
-    return page.data;
-  }
-
   /**
    * Sous le plafond de 200 clients, une seule page suffit et le comptage se fait
    * en mémoire. Au-delà, rapatrier tous les enregistrements pour n'en tirer que

packages/integrations/src/unifi-os/unifi-os-integration.ts

@@ -8,16 +8,9 @@ import type { UnifiOsSummaryIntegration } from "../interfaces/unifi-os-summary/u
 import type { UnifiOsFetch } from "./unifi-os-api";
 import { UnifiOsApi } from "./unifi-os-api";
 import { UnifiSmApi } from "./unifi-sm-api";
-import type { UnifiOsDevice, UnifiOsDeviceStatistics, UnifiOsSummary } from "./unifi-os-types";
+import type { UnifiOsDeviceStatistics, UnifiOsSummary } from "./unifi-os-types";
 import { findGateway, summarizeDevices } from "./unifi-os-types";
 
-const EMPTY_CLIENT_COUNTS = { total: 0, wired: 0, wireless: 0, vpn: 0, guests: 0 } as const;
-const EMPTY_DEVICE_COUNTS = { total: 0, online: 0, offline: 0, firmwareUpdatable: 0 } as const;
-
-/** `Promise.allSettled` renvoie `rejected` sans valeur ; on retombe sur un défaut. */
-const settledValue = <T>(result: PromiseSettledResult<T>, fallback: T): T =>
-  result.status === "fulfilled" ? result.value : fallback;
-
 export class UnifiOsIntegration extends Integration implements UnifiOsSummaryIntegration {
   public async getUnifiOsSummaryAsync(): Promise<UnifiOsSummary> {
     return await this.buildSummaryAsync(fetchWithTrustedCertificatesAsync as unknown as UnifiOsFetch);
@@ -59,8 +52,10 @@ export class UnifiOsIntegration extends Integration implements UnifiOsSummaryInt
       api.getDevicesAsync(site.id),
     ]);
 
-    const clients = settledValue(clientsResult, { ...EMPTY_CLIENT_COUNTS });
-    const devices = settledValue<UnifiOsDevice[]>(devicesResult, []);
+    // `null` marks a failed call so the UI never mistakes it for a real zero
+    // count (a site with genuinely no clients or devices).
+    const clients = clientsResult.status === "fulfilled" ? clientsResult.value : null;
+    const devices = devicesResult.status === "fulfilled" ? devicesResult.value : [];
     const gatewayDevice = findGateway(devices);
 
     // Les statistiques dépendent du gateway : sans gateway identifié, il n'y a
@@ -87,7 +82,7 @@ export class UnifiOsIntegration extends Integration implements UnifiOsSummaryInt
         isp,
       },
       clients,
-      devices: devicesResult.status === "fulfilled" ? summarizeDevices(devices) : { ...EMPTY_DEVICE_COUNTS },
+      devices: devicesResult.status === "fulfilled" ? summarizeDevices(devices) : null,
       gateway:
         gatewayDevice === null
           ? null

packages/integrations/src/unifi-os/unifi-os-types.ts

@@ -148,8 +148,11 @@ export interface UnifiOsSummary {
     throughput: { txBps: number; rxBps: number } | null;
     isp: UnifiOsIspMetrics | null;
   };
-  clients: UnifiOsClientCounts;
-  devices: UnifiOsDeviceCounts;
+  /** `null` when the call failed — never a zero count, which the UI could not
+   *  tell apart from a site with genuinely no clients. */
+  clients: UnifiOsClientCounts | null;
+  /** `null` when the call failed, for the same reason. */
+  devices: UnifiOsDeviceCounts | null;
   gateway: UnifiOsGateway | null;
 }