refactor(namespace): migrate namespace edit to react [r8s-125] (#38)

app/react/kubernetes/namespaces/queries/useNamespaceYAML.ts

@@ -0,0 +1,71 @@
+import { useQuery } from '@tanstack/react-query';
+
+import axios from '@/portainer/services/axios';
+import { EnvironmentId } from '@/react/portainer/environments/types';
+import { isFulfilled } from '@/portainer/helpers/promise-utils';
+
+import { parseKubernetesAxiosError } from '../../axiosError';
+import { generateResourceQuotaName } from '../resourceQuotaUtils';
+
+import { queryKeys } from './queryKeys';
+
+/**
+ * Gets the YAML for a namespace and its resource quota directly from the K8s proxy API.
+ */
+export function useNamespaceYAML(
+  environmentId: EnvironmentId,
+  namespaceName: string
+) {
+  return useQuery({
+    queryKey: queryKeys.namespaceYAML(environmentId, namespaceName),
+    queryFn: () => composeNamespaceYAML(environmentId, namespaceName),
+  });
+}
+
+async function composeNamespaceYAML(
+  environmentId: EnvironmentId,
+  namespace: string
+) {
+  const settledPromises = await Promise.allSettled([
+    getNamespaceYAML(environmentId, namespace),
+    getResourceQuotaYAML(environmentId, namespace),
+  ]);
+  const resolvedPromises = settledPromises.filter(isFulfilled);
+  return resolvedPromises.map((p) => p.value).join('\n---\n');
+}
+
+async function getNamespaceYAML(
+  environmentId: EnvironmentId,
+  namespace: string
+) {
+  try {
+    const { data: yaml } = await axios.get<string>(
+      `/endpoints/${environmentId}/kubernetes/api/v1/namespaces/${namespace}`,
+      {
+        headers: {
+          Accept: 'application/yaml',
+        },
+      }
+    );
+    return yaml;
+  } catch (error) {
+    throw parseKubernetesAxiosError(error, 'Unable to retrieve namespace YAML');
+  }
+}
+
+async function getResourceQuotaYAML(
+  environmentId: EnvironmentId,
+  namespace: string
+) {
+  const resourceQuotaName = generateResourceQuotaName(namespace);
+  try {
+    const { data: yaml } = await axios.get<string>(
+      `/endpoints/${environmentId}/kubernetes/api/v1/namespaces/${namespace}/resourcequotas/${resourceQuotaName}`,
+      { headers: { Accept: 'application/yaml' } }
+    );
+    return yaml;
+  } catch (e) {
+    // silently ignore if resource quota does not exist
+    return null;
+  }
+}