@gdjiami/jm-mrc-components/es/calendar/chinessHoliday.js

移动端可复用组件库

import { __read } from "tslib";
import { solarToLunar } from 'chinese-lunar';
import memoize from 'lodash/memoize';
export var holidays = {
    // 新历假日
    gregorian: {
        '1-1': '元旦',
        '2-14': '情人节',
        '3-8': '妇女节',
        '5-1': '劳动节',
        '5-4': '青年节',
        '6-1': '儿童节',
        '7-1': '建党节',
        '8-1': '建军节',
        '9-10': '教师节',
        '10-1': '国庆节',
        // 动态节日(节气都是动态节日，暂时不展示)
        // '4-4': '清明节',
        // '12-22': '冬至',
        // '6-22': '夏至',
        '12-25': '圣诞节',
    },
    lunar: {
        '12-8': '腊八',
        '12-29-leap': '除夕',
        '12-30': '除夕',
        '1-1': '春节',
        '1-15': '元宵节',
        '5-5': '端午节',
        '7-7': '七夕',
        '8-15': '中秋节',
        '9-9': '重阳节',
    },
    byWeek: {
        '5-2-0': '母亲节',
        // 六月第三个星期日
        '6-3-0': '父亲节',
    },
};
/**
 * 获取节假日
 */
export default function getHoliday(date) {
    var gregorian = date.getMonth() + 1 + "-" + date.getDate();
    if (gregorian in holidays.gregorian) {
        return holidays.gregorian[gregorian];
    }
    // 动态节日
    var dynamicHolidays = getDynamicHoliday(date.getFullYear());
    if (gregorian in dynamicHolidays) {
        return dynamicHolidays[gregorian];
    }
    for (var key in holidays.byWeek) {
        var _a = __read(key.split('-').map(function (i) { return parseInt(i); }), 3), month = _a[0], week = _a[1], day = _a[2];
        if (month !== date.getMonth() + 1) {
            continue;
        }
        if (day !== date.getDay()) {
            continue;
        }
        var holiday = getNthWeek(date, week, day);
        if (holiday.getDate() === date.getDate()) {
            return holidays.byWeek[key];
        }
    }
    // 农历节假日
    var lunar = solarToLunar(date);
    var lunarKey = lunar.month + "-" + lunar.day;
    if (lunar.leap && lunar.month === 12) {
        lunarKey += '-leap';
    }
    return holidays.lunar[lunarKey];
}
export var getDynamicHoliday = memoize(function (year) {
    var result = {};
    try {
        // const dongzhi = getDongzhiForYear(year)
        // result[`12-${dongzhi}`] = '冬至'
        var qingming = getQingMingForYear(year);
        result["4-" + qingming] = '清明';
    }
    catch (_a) {
        // ignore
    }
    return result;
});
export function getDongzhiForYear(year) {
    if (year == 2767) {
        return 23;
    }
    if (year == 2227 || year == 3068) {
        return 22;
    }
    if (year < 1700) {
        throw new TypeError('1700年以前暂时不支持');
    }
    if (year >= 3100) {
        throw new TypeError('3100年以后暂时不支持');
    }
    var coefficient = [
        22.11,
        22.39,
        22.66,
        21.9,
        22.18,
        22.472,
        22.72,
        21.995,
        22.27,
        22.51,
        22.75,
        22.02,
        22.27,
        22.519,
        22.8,
    ];
    var mod = year % 100;
    var index = Math.trunc(year / 100 - 17);
    return Math.trunc(mod * 0.2422 + coefficient[index] - Math.trunc(mod / 4));
}
export function getQingMingForYear(year) {
    if (year == 2231) {
        return 23;
    }
    if (year == 2227 || year == 3068) {
        return 22;
    }
    if (year < 1700) {
        throw new TypeError('1700年以前暂时不支持');
    }
    if (year >= 3100) {
        throw new TypeError('3100年以后暂时不支持');
    }
    var coefficient = [
        5.15,
        5.37,
        5.59,
        4.82,
        5.02,
        5.26,
        5.48,
        4.7,
        4.92,
        5.135,
        5.36,
        4.6,
        4.81,
        5.04,
        5.26,
    ];
    var mod = year % 100;
    var index = Math.trunc(year / 100 - 17);
    return Math.trunc(mod * 0.2422 + coefficient[index] - Math.trunc(mod / 4));
}
/**
 * 获取当月第N个星期*
 */
export function getNthWeek(date, n, day) {
    var copy = new Date(date);
    copy.setDate(1);
    var firstDay = copy.getDay();
    // first week end
    if (firstDay > day) {
        copy.setDate(1 + 7 - (firstDay - day));
    }
    else {
        copy.setDate(1 + (day - firstDay));
    }
    copy.setDate(copy.getDate() + (n - 1) * 7);
    return copy;
}