fix: week range disabled rule (#177)

* fix: week range disabled rule

* add test

* update test

* update test

* semantic refactor

src/generate/dateFns.ts

@@ -19,6 +19,7 @@ import {
   isAfter,
   isValid,
   getWeek,
+  startOfWeek,
   format as formatDate,
   parse as parseDate,
 } from 'date-fns';
@@ -71,6 +72,9 @@ const generateConfig: GenerateConfig<Date> = {
       const clone = Locale[dealLocal(locale)];
       return clone.options.weekStartsOn;
     },
+    getWeekFirstDate: (locale, date) => {
+      return startOfWeek(date, { locale: Locale[dealLocal(locale)] });
+    },
     getWeek: (locale, date) => {
       return getWeek(date, { locale: Locale[dealLocal(locale)] });
     },

src/generate/dayjs.ts

@@ -80,6 +80,7 @@ const generateConfig: GenerateConfig<Dayjs> = {
         .locale(parseLocale(locale))
         .localeData()
         .firstDayOfWeek(),
+    getWeekFirstDate: (locale, date) => date.locale(parseLocale(locale)).weekday(0),
     getWeek: (locale, date) => date.locale(parseLocale(locale)).week(),
     getShortWeekDays: locale =>
       dayjs()

src/generate/index.ts

@@ -28,6 +28,7 @@ export interface GenerateConfig<DateType> {
 
   locale: {
     getWeekFirstDay: (locale: string) => number;
+    getWeekFirstDate: (locale: string, value: DateType) => DateType;
     getWeek: (locale: string, value: DateType) => number;
 
     format: (locale: string, date: DateType, format: string) => string;

src/generate/moment.ts

@@ -68,6 +68,11 @@ const generateConfig: GenerateConfig<Moment> = {
       const date = moment().locale(locale);
       return date.localeData().firstDayOfWeek();
     },
+    getWeekFirstDate: (locale, date) => {
+      const clone = date.clone();
+      const result = clone.locale(locale);
+      return result.weekday(0);
+    },
     getWeek: (locale, date) => {
       const clone = date.clone();
       const result = clone.locale(locale);

src/hooks/useRangeDisabled.ts

@@ -26,10 +26,8 @@ export default function useRangeDisabled<DateType>(
   const startDate = getValue(selectedValue, 0);
   const endDate = getValue(selectedValue, 1);
 
-  function weekNumber(date: DateType) {
-    const year = generateConfig.getYear(date);
-    const week = generateConfig.locale.getWeek(locale.locale, date);
-    return year * 100 + week;
+  function weekFirstDate(date: DateType) {
+    return generateConfig.locale.getWeekFirstDate(locale.locale, date);
   }
 
   function monthNumber(date: DateType) {
@@ -63,7 +61,7 @@ export default function useRangeDisabled<DateType>(
           case 'month':
             return monthNumber(date) > monthNumber(endDate);
           case 'week':
-            return weekNumber(date) > weekNumber(endDate);
+            return weekFirstDate(date) > weekFirstDate(endDate);
           default:
             return (
               !isSameDate(generateConfig, date, endDate) && generateConfig.isAfter(date, endDate)
@@ -97,7 +95,7 @@ export default function useRangeDisabled<DateType>(
           case 'month':
             return monthNumber(date) < monthNumber(startDate);
           case 'week':
-            return weekNumber(date) < weekNumber(startDate);
+            return weekFirstDate(date) < weekFirstDate(startDate);
           default:
             return (
               !isSameDate(generateConfig, date, startDate) &&

tests/generate.spec.tsx

@@ -132,6 +132,20 @@ describe('Picker.Generate', () => {
         });
       });
 
+      it('getWeekFirstDayValue', () => {
+        const formatStr = name === 'date-fns' ? 'yyyy-MM-dd' : 'YYYY-MM-DD';
+        const usDate = generateConfig.locale.getWeekFirstDate(
+          'en_US',
+          generateConfig.locale.parse('en_US', '2020-12-30', [formatStr]),
+        );
+        const cnDate = generateConfig.locale.getWeekFirstDate(
+          'zh_CN',
+          generateConfig.locale.parse('zh_CN', '2020-12-30', [formatStr]),
+        );
+        expect(generateConfig.locale.format('en_US', usDate, formatStr)).toEqual('2020-12-27');
+        expect(generateConfig.locale.format('zh_CN', cnDate, formatStr)).toEqual('2020-12-28');
+      });
+
       it('Parse format Wo', () => {
         if (name !== 'date-fns') {
           expect(