Added Statistics calculation

Statistics now show calculated values

node_modules/@mui/x-date-pickers/esm/validation/validateDate.js

@@ -0,0 +1,55 @@
+import { singleItemValueManager } from "../internals/utils/valueManagers.js";
+
+/**
+ * Validation props used by the Date Picker, Date Field and Date Calendar components.
+ */
+
+/**
+ * Validation props as received by the validateDate method.
+ */
+
+/**
+ * Name of the props that should be defaulted before being passed to the validateDate method.
+ */
+
+export const validateDate = ({
+  props,
+  value,
+  timezone,
+  adapter
+}) => {
+  if (value === null) {
+    return null;
+  }
+  const {
+    shouldDisableDate,
+    shouldDisableMonth,
+    shouldDisableYear,
+    disablePast,
+    disableFuture,
+    minDate,
+    maxDate
+  } = props;
+  const now = adapter.date(undefined, timezone);
+  switch (true) {
+    case !adapter.isValid(value):
+      return 'invalidDate';
+    case Boolean(shouldDisableDate && shouldDisableDate(value)):
+      return 'shouldDisableDate';
+    case Boolean(shouldDisableMonth && shouldDisableMonth(value)):
+      return 'shouldDisableMonth';
+    case Boolean(shouldDisableYear && shouldDisableYear(value)):
+      return 'shouldDisableYear';
+    case Boolean(disableFuture && adapter.isAfterDay(value, now)):
+      return 'disableFuture';
+    case Boolean(disablePast && adapter.isBeforeDay(value, now)):
+      return 'disablePast';
+    case Boolean(minDate && adapter.isBeforeDay(value, minDate)):
+      return 'minDate';
+    case Boolean(maxDate && adapter.isAfterDay(value, maxDate)):
+      return 'maxDate';
+    default:
+      return null;
+  }
+};
+validateDate.valueManager = singleItemValueManager;