refactor(nomad): sync frontend with EE [EE-3353] (#7758)

app/react/nomad/DashboardView/useDashboard.ts

@@ -0,0 +1,41 @@
+import { useQuery } from 'react-query';
+
+import { EnvironmentId } from '@/react/portainer/environments/types';
+import axios, { parseAxiosError } from '@/portainer/services/axios';
+
+export type DashboardResponse = {
+  JobCount: number;
+  GroupCount: number;
+  TaskCount: number;
+  RunningTaskCount: number;
+  NodeCount: number;
+};
+
+export function useDashboard(environmentId: EnvironmentId) {
+  return useQuery(
+    ['environments', environmentId, 'nomad', 'dashboard'],
+    () => getDashboard(environmentId),
+    {
+      meta: {
+        error: {
+          title: 'Failure',
+          message: 'Unable to get dashboard information',
+        },
+      },
+    }
+  );
+}
+
+export async function getDashboard(environmentId: EnvironmentId) {
+  try {
+    const { data: dashboard } = await axios.get<DashboardResponse>(
+      `/nomad/endpoints/${environmentId}/dashboard`,
+      {
+        params: {},
+      }
+    );
+    return dashboard;
+  } catch (e) {
+    throw parseAxiosError(e as Error);
+  }
+}