Added Statistics calculation

Statistics now show calculated values

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

@@ -0,0 +1,53 @@
+'use client';
+
+import * as React from 'react';
+import useEventCallback from '@mui/utils/useEventCallback';
+import { usePickerAdapter } from "../hooks/index.js";
+/**
+ * Utility hook to check if a given value is valid based on the provided validation props.
+ * @template TValue The value type. It will be the same type as `value` or `null`. It can be in `[start, end]` format in case of range value.
+ * @template TError The validation error type. It will be either `string` or a `null`. It can be in `[start, end]` format in case of range value.
+ * @param {UseValidationOptions<TValue, TError, TValidationProps>} options The options to configure the hook.
+ * @param {TValue} options.value The value to validate.
+ * @param {PickersTimezone} options.timezone The timezone to use for the validation.
+ * @param {Validator<TValue, TError, TValidationProps>} options.validator The validator function to use.
+ * @param {TValidationProps} options.props The validation props, they differ depending on the component.
+ * @param {(error: TError, value: TValue) => void} options.onError Callback fired when the error associated with the current value changes.
+ */
+export function useValidation(options) {
+  const {
+    props,
+    validator,
+    value,
+    timezone,
+    onError
+  } = options;
+  const adapter = usePickerAdapter();
+  const previousValidationErrorRef = React.useRef(validator.valueManager.defaultErrorState);
+  const validationError = validator({
+    adapter,
+    value,
+    timezone,
+    props
+  });
+  const hasValidationError = validator.valueManager.hasError(validationError);
+  React.useEffect(() => {
+    if (onError && !validator.valueManager.isSameError(validationError, previousValidationErrorRef.current)) {
+      onError(validationError, value);
+    }
+    previousValidationErrorRef.current = validationError;
+  }, [validator, onError, validationError, value]);
+  const getValidationErrorForNewValue = useEventCallback(newValue => {
+    return validator({
+      adapter,
+      value: newValue,
+      timezone,
+      props
+    });
+  });
+  return {
+    validationError,
+    hasValidationError,
+    getValidationErrorForNewValue
+  };
+}