refactor(k8s): namespace core logic (#12142)

Co-authored-by: testA113 <aliharriss1995@gmail.com>
Co-authored-by: Anthony Lapenna <anthony.lapenna@portainer.io>
Co-authored-by: James Carppe <85850129+jamescarppe@users.noreply.github.com>
Co-authored-by: Ali <83188384+testA113@users.noreply.github.com>

app/react/kubernetes/configs/queries/useConfigMaps.ts

@@ -0,0 +1,41 @@
+import { useQuery } from '@tanstack/react-query';
+import { ConfigMap, ConfigMapList } from 'kubernetes-types/core/v1';
+
+import axios from '@/portainer/services/axios';
+import { EnvironmentId } from '@/react/portainer/environments/types';
+import { withGlobalError } from '@/react-tools/react-query';
+
+import { parseKubernetesAxiosError } from '../../axiosError';
+
+import { configMapQueryKeys } from './query-keys';
+
+// returns a usequery hook for the list of configmaps within a namespace from the kubernetes API
+export function useConfigMaps(environmentId: EnvironmentId, namespace: string) {
+  return useQuery(
+    configMapQueryKeys.configMaps(environmentId, namespace),
+    () => (namespace ? getConfigMaps(environmentId, namespace) : []),
+    {
+      ...withGlobalError(
+        `Unable to get ConfigMaps in namespace '${namespace}'`
+      ),
+      enabled: !!namespace,
+    }
+  );
+}
+
+// get all configmaps for a namespace
+async function getConfigMaps(environmentId: EnvironmentId, namespace?: string) {
+  try {
+    const { data } = await axios.get<ConfigMapList>(
+      `/endpoints/${environmentId}/kubernetes/api/v1/namespaces/${namespace}/configmaps`
+    );
+    // when fetching a list, the kind isn't appended to the items, so we need to add it
+    const configmaps: ConfigMap[] = data.items.map((configmap) => ({
+      ...configmap,
+      kind: 'ConfigMap',
+    }));
+    return configmaps;
+  } catch (e) {
+    throw parseKubernetesAxiosError(e, 'Unable to retrieve ConfigMaps');
+  }
+}