feat(COOP-2237): add new validator to check for minDate

packages/validators/src/date.validators.ts

@@ -69,3 +69,27 @@ export function isDate(): BalValidatorFn {
     return DateFns.isDate(value)
   }
 }
+
+/**
+ * Returns `true` if the given data is at the same or after the value date
+ *
+ * ```typescript
+ * BalValidators.isMinDate('2000-01-01')('2000-01-01') // true
+ * BalValidators.isMinDate('2000-01-02')('2000-01-01') // true
+ * BalValidators.isMinDate(new Date(2020, 0, 1))(new Date(2020, 0, 1)) // true
+ * ```
+ */
+export function isMinDate(date: Date | string): BalValidatorFn {
+  return function (value: any) {
+    if (BalUtils.isEmpty(value)) {
+      return true
+    }
+    if (isString(value)) {
+      value = BalUtils.parse(value)
+    }
+    if (isString(date)) {
+      date = BalUtils.parse(date)
+    }
+    return DateFns.isSameDay(value, date) || DateFns.isAfter(value, date)
+  }
+}