Create and delete tokens from web ui

moneymgr_web/src/utils/DateUtils.tsx

@@ -0,0 +1,20 @@
+import dayjs, { Dayjs } from "dayjs";
+
+export function timeToDate(time: number | undefined): Dayjs | undefined {
+  if (!time) return undefined;
+  return dayjs(new Date(time * 1000));
+}
+
+export function dateToTime(date: Dayjs | undefined): number | undefined {
+  if (!date) return undefined;
+  return Math.floor(date.toDate().getTime() / 1000);
+}
+
+/**
+ * Get UNIX time
+ *
+ * @returns Number of seconds since Epoch
+ */
+export function time(): number {
+  return Math.floor(new Date().getTime() / 1000);
+}

moneymgr_web/src/utils/FormUtils.tsx

@@ -0,0 +1,32 @@
+import { LenConstraint } from "../api/ServerApi";
+
+/**
+ * Check if a constraint was respected or not
+ *
+ * @returns An error message appropriate for the constraint
+ * violation, if any, or undefined otherwise
+ */
+export function checkConstraint(
+  constraint: LenConstraint,
+  value: string | undefined
+): string | undefined {
+  value = value ?? "";
+  if (value.length < constraint.min)
+    return `Please specify at least ${constraint.min} characters !`;
+
+  if (value.length > constraint.max)
+    return `Please specify at least ${constraint.min} characters !`;
+
+  return undefined;
+}
+
+/**
+ * Check out whether a given URL is valid or not
+ */
+export function checkURL(s: string): boolean {
+  try {
+    return Boolean(new URL(s));
+  } catch (e) {
+    return false;
+  }
+}