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

app/react/kubernetes/namespaces/resourceQuotaUtils.ts

@@ -0,0 +1,64 @@
+import { endsWith } from 'lodash';
+import filesizeParser from 'filesize-parser';
+
+export const KubernetesPortainerResourceQuotaPrefix = 'portainer-rq-';
+
+export function generateResourceQuotaName(name: string) {
+  return `${KubernetesPortainerResourceQuotaPrefix}${name}`;
+}
+
+/**
+ * parseCPU converts a CPU string to a number in cores.
+ * It supports m (milli), u (micro), n (nano), p (pico) suffixes.
+ *
+ * If given an empty string, it returns 0.
+ */
+export function parseCPU(cpu: string) {
+  let res = parseInt(cpu, 10);
+  if (Number.isNaN(res)) {
+    return 0;
+  }
+
+  if (endsWith(cpu, 'm')) {
+    // milli
+    res /= 1000;
+  } else if (endsWith(cpu, 'u')) {
+    // micro
+    res /= 1000000;
+  } else if (endsWith(cpu, 'n')) {
+    // nano
+    res /= 1000000000;
+  } else if (endsWith(cpu, 'p')) {
+    // pico
+    res /= 1000000000000;
+  }
+  return res;
+}
+
+export function terabytesValue(value: string | number) {
+  return gigabytesValue(value) / 1000;
+}
+
+export function gigabytesValue(value: string | number) {
+  return megaBytesValue(value) / 1000;
+}
+
+export function megaBytesValue(value: string | number) {
+  return Math.floor(safeFilesizeParser(value, 10) / 1000 / 1000);
+}
+
+export function bytesValue(mem: string | number) {
+  return safeFilesizeParser(mem, 10) * 1000 * 1000;
+}
+
+/**
+ * The default base is 2, you can use base 10 if you want
+ * https://github.com/patrickkettner/filesize-parser#readme
+ */
+function safeFilesizeParser(value: string | number, base: 2 | 10 = 2) {
+  if (!value || Number.isNaN(value)) {
+    return 0;
+  }
+
+  return filesizeParser(value, { base });
+}