Added Statistics calculation

Statistics now show calculated values

node_modules/@mui/x-date-pickers/internals/utils/createStepNavigation.js

@@ -0,0 +1,52 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.DEFAULT_STEP_NAVIGATION = void 0;
+exports.createStepNavigation = createStepNavigation;
+var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
+const DEFAULT_STEP_NAVIGATION = exports.DEFAULT_STEP_NAVIGATION = {
+  hasNextStep: false,
+  hasSeveralSteps: false,
+  goToNextStep: () => {},
+  areViewsInSameStep: () => true
+};
+
+/**
+ * Create an object that determines whether there is a next step and allows to go to the next step.
+ * @param {CreateStepNavigationParameters<TStep>} parameters The parameters of the createStepNavigation function
+ * @returns {CreateStepNavigationReturnValue} The return value of the createStepNavigation function
+ */
+function createStepNavigation(parameters) {
+  const {
+    steps,
+    isViewMatchingStep,
+    onStepChange
+  } = parameters;
+  return parametersBis => {
+    if (steps == null) {
+      return DEFAULT_STEP_NAVIGATION;
+    }
+    const currentStepIndex = steps.findIndex(step => isViewMatchingStep(parametersBis.view, step));
+    const nextStep = currentStepIndex === -1 || currentStepIndex === steps.length - 1 ? null : steps[currentStepIndex + 1];
+    return {
+      hasNextStep: nextStep != null,
+      hasSeveralSteps: steps.length > 1,
+      goToNextStep: () => {
+        if (nextStep == null) {
+          return;
+        }
+        onStepChange((0, _extends2.default)({}, parametersBis, {
+          step: nextStep
+        }));
+      },
+      areViewsInSameStep: (viewA, viewB) => {
+        const stepA = steps.find(step => isViewMatchingStep(viewA, step));
+        const stepB = steps.find(step => isViewMatchingStep(viewB, step));
+        return stepA === stepB;
+      }
+    };
+  };
+}