fix: use license/usage endpoint for agent/env/app counts

Server moved GET /agents to /environments/{envSlug}/agents and removed
GET /admin/apps. Replace three broken individual calls with a single
GET /admin/license/usage call that returns all counts.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/main/java/net/siegeln/cameleer/saas/identity/ServerApiClient.java

@@ -125,51 +125,37 @@ public class ServerApiClient {
         }
     }
 
-    /** Fetch agent count from a tenant's server. */
+    public record UsageCounts(int agents, int environments, int apps) {
-    public int getAgentCount(String serverEndpoint) {
+        public static final UsageCounts ZERO = new UsageCounts(0, 0, 0);
-        try {
-            var resp = RestClient.create().get()
-                .uri(serverEndpoint + "/api/v1/agents")
-                .header("Authorization", "Bearer " + getAccessToken())
-                .header("X-Cameleer-Protocol-Version", "1")
-                .retrieve()
-                .body(java.util.List.class);
-            return resp != null ? resp.size() : 0;
-        } catch (Exception e) {
-            log.warn("Agent count fetch failed for {}: {}", serverEndpoint, e.getMessage());
-            return 0;
-        }
     }
 
-    /** Fetch environment count from a tenant's server. */
+    /** Fetch usage counts from a tenant's server via the license usage endpoint. */
-    public int getEnvironmentCount(String serverEndpoint) {
+    @SuppressWarnings("unchecked")
+    public UsageCounts getUsageCounts(String serverEndpoint) {
         try {
             var resp = RestClient.create().get()
-                .uri(serverEndpoint + "/api/v1/admin/environments")
+                .uri(serverEndpoint + "/api/v1/admin/license/usage")
                 .header("Authorization", "Bearer " + getAccessToken())
                 .header("X-Cameleer-Protocol-Version", "1")
                 .retrieve()
-                .body(java.util.List.class);
+                .body(Map.class);
-            return resp != null ? resp.size() : 0;
+            if (resp == null) return UsageCounts.ZERO;
+            var limits = (List<Map<String, Object>>) resp.get("limits");
+            if (limits == null) return UsageCounts.ZERO;
+            int agents = 0, environments = 0, apps = 0;
+            for (var row : limits) {
+                String key = (String) row.get("key");
+                int current = ((Number) row.get("current")).intValue();
+                switch (key) {
+                    case "max_agents" -> agents = current;
+                    case "max_environments" -> environments = current;
+                    case "max_apps" -> apps = current;
+                }
+            }
+            return new UsageCounts(agents, environments, apps);
         } catch (Exception e) {
-            log.warn("Environment count fetch failed for {}: {}", serverEndpoint, e.getMessage());
+            log.warn("Usage counts fetch failed for {}: {}", serverEndpoint, e.getMessage());
-            return 0;
+            return UsageCounts.ZERO;
-        }
-    }
-
-    /** Fetch app count from a tenant's server. */
-    public int getAppCount(String serverEndpoint) {
-        try {
-            var resp = RestClient.create().get()
-                .uri(serverEndpoint + "/api/v1/admin/apps")
-                .header("Authorization", "Bearer " + getAccessToken())
-                .header("X-Cameleer-Protocol-Version", "1")
-                .retrieve()
-                .body(java.util.List.class);
-            return resp != null ? resp.size() : 0;
-        } catch (Exception e) {
-            log.warn("App count fetch failed for {}: {}", serverEndpoint, e.getMessage());
-            return 0;
         }
     }
 

src/main/java/net/siegeln/cameleer/saas/portal/TenantPortalService.java

@@ -113,8 +113,9 @@ public class TenantPortalService {
             serverHealthy = health.healthy();
             serverStatus = health.status();
             if (serverHealthy) {
-                agentCount = serverApiClient.getAgentCount(endpoint);
+                var counts = serverApiClient.getUsageCounts(endpoint);
-                environmentCount = serverApiClient.getEnvironmentCount(endpoint);
+                agentCount = counts.agents();
+                environmentCount = counts.environments();
             }
         }
 
@@ -160,9 +161,10 @@ public class TenantPortalService {
         Map<String, Integer> usage = new HashMap<>();
         String endpoint = tenant.getServerEndpoint();
         if (endpoint != null && !endpoint.isBlank()) {
-            usage.put("agents", serverApiClient.getAgentCount(endpoint));
+            var counts = serverApiClient.getUsageCounts(endpoint);
-            usage.put("environments", serverApiClient.getEnvironmentCount(endpoint));
+            usage.put("agents", counts.agents());
-            usage.put("apps", serverApiClient.getAppCount(endpoint));
+            usage.put("environments", counts.environments());
+            usage.put("apps", counts.apps());
         }
         // User count from Logto org membership
         String orgId = tenant.getLogtoOrgId();

src/main/java/net/siegeln/cameleer/saas/vendor/VendorTenantController.java

@@ -80,8 +80,9 @@ public class VendorTenantController {
             boolean isActive = "ACTIVE".equals(tenant.getStatus().name());
             if (isActive && endpoint != null && !endpoint.isBlank() && "RUNNING".equals(status.state().name())) {
                 var serverApi = vendorTenantService.getServerApiClient();
-                agentCount = serverApi.getAgentCount(endpoint);
+                var counts = serverApi.getUsageCounts(endpoint);
-                environmentCount = serverApi.getEnvironmentCount(endpoint);
+                agentCount = counts.agents();
+                environmentCount = counts.environments();
             }
             var license = vendorTenantService.getLicenseForTenant(tenant.getId());
             if (license.isPresent() && license.get().getLimits() != null) {
@@ -130,9 +131,10 @@ public class VendorTenantController {
                     String endpoint = tenant.getServerEndpoint();
                     if (health.healthy() && endpoint != null && !endpoint.isBlank()) {
                         var serverApi = vendorTenantService.getServerApiClient();
-                        usage.put("agents", serverApi.getAgentCount(endpoint));
+                        var counts = serverApi.getUsageCounts(endpoint);
-                        usage.put("environments", serverApi.getEnvironmentCount(endpoint));
+                        usage.put("agents", counts.agents());
-                        usage.put("apps", serverApi.getAppCount(endpoint));
+                        usage.put("environments", counts.environments());
+                        usage.put("apps", counts.apps());
                     }
 
                     return ResponseEntity.ok(new VendorTenantDetail(

src/test/java/net/siegeln/cameleer/saas/portal/TenantPortalServiceTest.java

@@ -108,8 +108,7 @@ class TenantPortalServiceTest {
 
         when(tenantService.getById(tenantId)).thenReturn(Optional.of(tenant));
         when(serverApiClient.getHealth("http://server:8080")).thenReturn(new ServerHealthResponse(true, "UP"));
-        when(serverApiClient.getAgentCount("http://server:8080")).thenReturn(3);
+        when(serverApiClient.getUsageCounts("http://server:8080")).thenReturn(new ServerApiClient.UsageCounts(3, 1, 2));
-        when(serverApiClient.getEnvironmentCount("http://server:8080")).thenReturn(1);
         when(licenseService.getActiveLicense(tenantId)).thenReturn(Optional.of(license));
 
         var result = tenantPortalService.getDashboard();