@uiw/react-native/lib/Calendar/lunarHolidays.js

UIW for React Native

import { lunarInfo, nStr1, nStr2, nStr3, lunarHoliday, solarTerm, sTermInfo, basejieri } from './lunarDatas';
/**
 * 获取农历
 * @returns CalendarProps
 */
export function getLunarCalendar(year, month, day, type) {
    let lDate = Lunar(year, month, day);
    let y = lDate.years;
    let m = lDate.months;
    let d = lDate.days;
    let lunar = '';
    let paraHoliday = (m > 9 ? m : '0' + m) + '' + (d > 9 ? d : '0' + d);
    let lunarMonth = '';
    if (type === 'currentMonth') {
        lunarMonth = nStr3[m] + '月';
    }
    //农历节日
    if (lunarHoliday.hasOwnProperty(paraHoliday)) {
        let paraData = lunarHoliday[paraHoliday];
        lunar = cDay(d);
        let getHoliday = {
            lunarHolidays: paraData,
            colorType: 'type',
            lunarMonth: lunarMonth,
            lunar: lunar,
        };
        return getHoliday;
    }
    if (m === 12) {
        let theLastDay = lDate.isLeap ? leapDays(y) : monthDays(y, m); //农历当月最後一天
        lunar = cDay(d);
        if (theLastDay === d) {
            let getHoliday = {
                lunarHolidays: '除夕',
                colorType: 'type',
                lunarMonth: lunarMonth,
                lunar: lunar,
            };
            return getHoliday;
        }
    }
    // 节气
    let solarTermDay = (month + 1 > 9 ? month + 1 : '0' + (month + 1)) + '' + (day > 9 ? day : '0' + day);
    lunar = cDay(d);
    let sTermDateArr = sTermDate(year);
    for (var i = 0; i < sTermDateArr.length; i++) {
        if (solarTermDay === sTermDateArr[i]) {
            let paraData = solarTerm[i];
            let getHoliday = {
                lunarHolidays: paraData,
                colorType: 'type',
                lunarMonth: lunarMonth,
                lunar: lunar,
            };
            return getHoliday;
        }
    }
    //法定节日
    if (basejieri.hasOwnProperty(solarTermDay)) {
        let paraData = basejieri[solarTermDay];
        let getHoliday = {
            lunarHolidays: paraData,
            colorType: 'type',
            lunarMonth: lunarMonth,
            lunar: lunar,
        };
        return getHoliday;
    }
    if (d === 1) {
        lunar = nStr1[m] + '月';
        let lunar1 = cDay(d);
        let getHoliday = { lunarHolidays: lunar, colorType: '', lunarMonth: lunarMonth, lunar: lunar1 };
        return getHoliday;
    }
    else {
        lunar = cDay(d);
        let getHoliday = { lunarHolidays: '', colorType: '', lunarMonth: lunarMonth, lunar: lunar };
        return getHoliday;
    }
    // return lunar;
}
/**
 * 处理农历年月日
 * @returns lunarProps
 */
export function Lunar(year, month, day) {
    let years = 0;
    let months = 0;
    let days = 0;
    let isLeap = false;
    let i = 0;
    let leap = 0;
    let temp = 0;
    let offset = (Date.UTC(year, month, day) - Date.UTC(1900, 0, 31)) / 86400000;
    for (i = 1900; i < 2100 && offset > 0; i++) {
        temp = lYearDays(i);
        offset -= temp;
    }
    if (offset < 0) {
        offset += temp;
        i--;
    }
    years = i;
    leap = leapMonth(i); //闰哪个月
    isLeap = false;
    for (i = 1; i < 13 && offset > 0; i++) {
        // 闰月
        if (leap > 0 && i === leap + 1 && isLeap === false) {
            --i;
            isLeap = true;
            temp = leapDays(years);
        }
        else {
            temp = monthDays(years, i);
        }
        // 解除闰月
        if (isLeap === true && i === leap + 1) {
            isLeap = false;
        }
        offset -= temp;
    }
    if (offset === 0 && leap > 0 && i === leap + 1) {
        if (isLeap) {
            isLeap = false;
        }
        else {
            isLeap = true;
            --i;
        }
    }
    if (offset < 0) {
        offset += temp;
        --i;
    }
    months = i;
    days = offset + 1;
    return {
        years,
        months,
        days,
        isLeap,
    };
}
/**
 *返回农历Y年的总天数
 */
export function lYearDays(year) {
    let i = 0;
    let sum = 348;
    for (i = 0x8000; i > 0x8; i >>= 1) {
        sum += lunarInfo[year - 1900] & i ? 1 : 0;
    }
    return sum + leapDays(year);
}
/**
 *返回农历Y年闰月的天数
 */
export function leapDays(year) {
    if (leapMonth(year)) {
        return (lunarInfo[year - 1899] & 0xf) === 0xf ? 30 : 29;
    }
    else {
        return 0;
    }
}
/**
 *判断y年的农历中那个月是闰月
 */
export function leapMonth(year) {
    let lm = lunarInfo[year - 1900] & 0xf;
    return lm === 0xf ? 0 : lm;
}
/**
 *返回农历y年m月的总天数
 */
export function monthDays(year, month) {
    return (lunarInfo[year - 1900] & (0x10000 >> month)) ? 30 : 29;
}
/**
 *获取y年的节气
 */
export function sTermDate(year) {
    let sTermDateArr = [];
    for (var i = 0; i < solarTerm.length; i++) {
        let date = new Date(31556925974.7 * (year - 1900) + sTermInfo[i] * 60000 + Date.UTC(1900, 0, 6, 2, 5));
        let months = date.getMonth();
        let days = date.getUTCDate();
        let stdateStr = (months + 1 > 9 ? months + 1 : '0' + (months + 1)) + '' + (days > 9 ? days : '0' + days);
        sTermDateArr.push(stdateStr);
    }
    return sTermDateArr;
}
/**
 *用中文显示农历的日期
 */
export function cDay(day) {
    let s;
    switch (day) {
        case 10:
            s = '初十';
            break;
        case 20:
            s = '二十';
            break;
        case 30:
            s = '三十';
            break;
        default:
            s = nStr2[Math.floor(day / 10)];
            s += nStr1[day % 10];
    }
    return s;
}