Added Statistics calculation

Statistics now show calculated values

node_modules/@mui/x-date-pickers/esm/DateCalendar/useCalendarState.js

@@ -0,0 +1,156 @@
+'use client';
+
+import _extends from "@babel/runtime/helpers/esm/extends";
+import * as React from 'react';
+import useEventCallback from '@mui/utils/useEventCallback';
+import { useIsDateDisabled } from "./useIsDateDisabled.js";
+import { singleItemValueManager } from "../internals/utils/valueManagers.js";
+import { SECTION_TYPE_GRANULARITY } from "../internals/utils/getDefaultReferenceDate.js";
+import { findClosestEnabledDate } from "../internals/utils/date-utils.js";
+import { usePickerAdapter } from "../hooks/usePickerAdapter.js";
+const createCalendarStateReducer = (reduceAnimations, adapter) => (state, action) => {
+  switch (action.type) {
+    case 'setVisibleDate':
+      return _extends({}, state, {
+        slideDirection: action.direction,
+        currentMonth: action.month,
+        isMonthSwitchingAnimating: !adapter.isSameMonth(action.month, state.currentMonth) && !reduceAnimations && !action.skipAnimation,
+        focusedDay: action.focusedDay
+      });
+    case 'changeMonthTimezone':
+      {
+        const newTimezone = action.newTimezone;
+        if (adapter.getTimezone(state.currentMonth) === newTimezone) {
+          return state;
+        }
+        let newCurrentMonth = adapter.setTimezone(state.currentMonth, newTimezone);
+        if (adapter.getMonth(newCurrentMonth) !== adapter.getMonth(state.currentMonth)) {
+          newCurrentMonth = adapter.setMonth(newCurrentMonth, adapter.getMonth(state.currentMonth));
+        }
+        return _extends({}, state, {
+          currentMonth: newCurrentMonth
+        });
+      }
+    case 'finishMonthSwitchingAnimation':
+      return _extends({}, state, {
+        isMonthSwitchingAnimating: false
+      });
+    default:
+      throw new Error('missing support');
+  }
+};
+export const useCalendarState = params => {
+  const {
+    value,
+    referenceDate: referenceDateProp,
+    disableFuture,
+    disablePast,
+    maxDate,
+    minDate,
+    onMonthChange,
+    onYearChange,
+    reduceAnimations,
+    shouldDisableDate,
+    timezone,
+    getCurrentMonthFromVisibleDate
+  } = params;
+  const adapter = usePickerAdapter();
+  const reducerFn = React.useRef(createCalendarStateReducer(Boolean(reduceAnimations), adapter)).current;
+  const referenceDate = React.useMemo(() => {
+    return singleItemValueManager.getInitialReferenceValue({
+      value,
+      adapter,
+      timezone,
+      props: params,
+      referenceDate: referenceDateProp,
+      granularity: SECTION_TYPE_GRANULARITY.day
+    });
+  },
+  // We want the `referenceDate` to update on prop and `timezone` change (https://github.com/mui/mui-x/issues/10804)
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  [referenceDateProp, timezone]);
+  const [calendarState, dispatch] = React.useReducer(reducerFn, {
+    isMonthSwitchingAnimating: false,
+    focusedDay: referenceDate,
+    currentMonth: adapter.startOfMonth(referenceDate),
+    slideDirection: 'left'
+  });
+  const isDateDisabled = useIsDateDisabled({
+    shouldDisableDate,
+    minDate,
+    maxDate,
+    disableFuture,
+    disablePast,
+    timezone
+  });
+
+  // Ensure that `calendarState.currentMonth` timezone is updated when `referenceDate` (or timezone changes)
+  // https://github.com/mui/mui-x/issues/10804
+  React.useEffect(() => {
+    dispatch({
+      type: 'changeMonthTimezone',
+      newTimezone: adapter.getTimezone(referenceDate)
+    });
+  }, [referenceDate, adapter]);
+  const setVisibleDate = useEventCallback(({
+    target,
+    reason
+  }) => {
+    if (reason === 'cell-interaction' && calendarState.focusedDay != null && adapter.isSameDay(target, calendarState.focusedDay)) {
+      return;
+    }
+    const skipAnimation = reason === 'cell-interaction';
+    let month;
+    let focusedDay;
+    if (reason === 'cell-interaction') {
+      month = getCurrentMonthFromVisibleDate(target, calendarState.currentMonth);
+      focusedDay = target;
+    } else {
+      month = adapter.isSameMonth(target, calendarState.currentMonth) ? calendarState.currentMonth : adapter.startOfMonth(target);
+      focusedDay = target;
+
+      // If the date is disabled, we try to find a non-disabled date inside the same month.
+      if (isDateDisabled(focusedDay)) {
+        const startOfMonth = adapter.startOfMonth(target);
+        const endOfMonth = adapter.endOfMonth(target);
+        focusedDay = findClosestEnabledDate({
+          adapter,
+          date: focusedDay,
+          minDate: adapter.isBefore(minDate, startOfMonth) ? startOfMonth : minDate,
+          maxDate: adapter.isAfter(maxDate, endOfMonth) ? endOfMonth : maxDate,
+          disablePast,
+          disableFuture,
+          isDateDisabled,
+          timezone
+        });
+      }
+    }
+    const hasChangedMonth = !adapter.isSameMonth(calendarState.currentMonth, month);
+    const hasChangedYear = !adapter.isSameYear(calendarState.currentMonth, month);
+    if (hasChangedMonth) {
+      onMonthChange?.(month);
+    }
+    if (hasChangedYear) {
+      onYearChange?.(adapter.startOfYear(month));
+    }
+    dispatch({
+      type: 'setVisibleDate',
+      month,
+      direction: adapter.isAfterDay(month, calendarState.currentMonth) ? 'left' : 'right',
+      focusedDay: calendarState.focusedDay != null && focusedDay != null && adapter.isSameDay(focusedDay, calendarState.focusedDay) ? calendarState.focusedDay : focusedDay,
+      skipAnimation
+    });
+  });
+  const onMonthSwitchingAnimationEnd = React.useCallback(() => {
+    dispatch({
+      type: 'finishMonthSwitchingAnimation'
+    });
+  }, []);
+  return {
+    referenceDate,
+    calendarState,
+    setVisibleDate,
+    isDateDisabled,
+    onMonthSwitchingAnimationEnd
+  };
+};