lunar-calendar-plus/src/core/solarTerm.js

lunar-calendar-plus是一个可自定义设置假期、节日;获取指定农历日期、节气、每日宜忌、天文历等灵活的js库。支持Typescript！

"use strict";

const termModule = new Array(
  0,
  21208,
  42467,
  63836,
  85337,
  107014,
  128867,
  150921,
  173149,
  195551,
  218072,
  240693,
  263343,
  285989,
  308563,
  331033,
  353350,
  375494,
  397447,
  419210,
  440795,
  462224,
  483532,
  504758
);

const termData = new Array(
  "小寒",
  "大寒",
  "立春",
  "雨水",
  "惊蛰",
  "春分",
  "清明",
  "谷雨",
  "立夏",
  "小满",
  "芒种",
  "夏至",
  "小暑",
  "大暑",
  "立秋",
  "处暑",
  "白露",
  "秋分",
  "寒露",
  "霜降",
  "立冬",
  "小雪",
  "大雪",
  "冬至"
);

const Tian = new Array(
  "甲",
  "乙",
  "丙",
  "丁",
  "戊",
  "己",
  "庚",
  "辛",
  "壬",
  "癸"
);

const Zhi = new Array(
  "子",
  "丑",
  "寅",
  "卯",
  "辰",
  "巳",
  "午",
  "未",
  "申",
  "酉",
  "戌",
  "亥"
);

const signData = new Array(
  "建",
  "除",
  "满",
  "平",
  "定",
  "执",
  "破",
  "危",
  "成",
  "收",
  "开",
  "闭"
);

const signSuitable = new Array(
  "出行.上任.会友.上书.见工",
  "除服.疗病.出行.拆卸.入宅",
  "祈福.祭祀.结亲.开市.交易",
  "祭祀.修坟.涂泥.余事勿取",
  "交易.立券.会友.签约.纳畜",
  "祈福.祭祀.求子.结婚.立约",
  "求医.赴考.祭祀.余事勿取",
  "经营.交易.求官.纳畜.动土",
  "祈福.入学.开市.求医.成服",
  "祭祀.求财.签约.嫁娶.订盟",
  "疗病.结婚.交易.入仓.求职",
  "祭祀.交易.收财.安葬"
);
const signTaboo = new Array(
  "动土.开仓.嫁娶.纳采",
  "求官.上任.开张.搬家.探病",
  "服药.求医.栽种.动土.迁移",
  "移徙.入宅.嫁娶.开市.安葬",
  "种植.置业.卖田.掘井.造船",
  "开市.交易.搬家.远行",
  "动土.出行.移徙.开市.修造",
  "登高.行船.安床.入宅.博彩",
  "词讼.安门.移徙",
  "开市.安床.安葬.入宅.破土",
  "安葬.动土.针灸",
  "宴会.安床.出行.嫁娶.移徙"
);

const eclipticSuitable = new Array();

const eclipticTaboo = new Array();
function solarTerm() {}

/**
 * 获取节气句柄
 * @param {Number} y
 * @param {Number} n
 */
solarTerm.prototype.getTermHandle = function (y, n) {
  var offDate = new Date(
    31556925974.7 * (y - 1900) +
      termModule[n] * 60000 +
      Date.UTC(1900, 0, 6, 2, 5)
  );
  return offDate.getUTCDate();
};

/**
 * 获取指定月份节气日
 * @param {Number} y
 * @param {Number} m
 */
solarTerm.prototype.getTermDay = function (y, m) {
  return new Array(
    this.getTermHandle(y, m * 2),
    this.getTermHandle(y, m * 2 + 1)
  );
};

/**
 * 获取指定月份节气
 * @param {Number} y
 * @param {Number} m
 * @param {Number} d
 */
solarTerm.prototype.getTerm = function (y, m, d) {
  var existTerm = this.getTermDay(y, m).indexOf(d);
  return existTerm < 0 ? undefined : termData[2 * m + existTerm];
};

/**
 * 年、月、日柱句柄
 * @param {Number|Object} y
 * @param {String} type 类型（年--y|月--m|日--d）
 */
solarTerm.prototype.tgHandle = function (date, type) {
  var calTian = -1;
  var calZhi = -1;

  if (type == "y") {
    calTian = (date - 3) % 10;
    calZhi = (date - 3) % 12;
  } else {
    var calI = 0;
    // 每月第一个"节气"变化月支
    if (type == "m") {
      var TermDay = this.getTermDay(date.y, date.m);
      calI = date.d >= TermDay[0] ? 13 : 12;
      calTian = (date.y - 1900) * 12 + date.m + calI;
      calZhi = (date.y - 1900) * 12 + date.m + calI;
    } else {
      calI = Date.UTC(date.y, date.m, 1, 0, 0, 0, 0) / 86400000 + 25567 + 10;
      calTian = calI + date.d - 1;
      calZhi = calI + date.d - 1;
    }
    calTian = calTian % 10;
    calZhi = calZhi % 12;
  }

  return {
    Tian: calTian,
    Zhi: calZhi,
  };
};

/**
 * 年柱
 * 按农历计算
 * @param {Number} y
 */
solarTerm.prototype.tzYear = function (y) {
  var tzHandle = this.tgHandle(y, "y");
  return {
    Tian: Tian[tzHandle.Tian - 1],
    TianNum: tzHandle.Tian - 1,
    Zhi: Zhi[tzHandle.Zhi - 1],
    ZhiNum: tzHandle.Zhi - 1,
  };
};

/**
 * 月柱
 * @param {Number} y
 * @param {Number} m
 */
solarTerm.prototype.tzMonth = function (y, m, d) {
  var tzHandle = this.tgHandle({ y, m, d }, "m");
  return {
    Tian: Tian[tzHandle.Tian],
    TianNum: tzHandle.Tian,
    Zhi: Zhi[tzHandle.Zhi],
    ZhiNum: tzHandle.Zhi,
  };
};

/**
 * 日柱
 * @param {Number} y
 * @param {Number} m
 * @param {Number} d
 */
solarTerm.prototype.tzDay = function (y, m, d) {
  var tzHandle = this.tgHandle({ y, m: m - 1, d }, "d");
  return {
    Tian: Tian[tzHandle.Tian],
    TianNum: tzHandle.Tian,
    Zhi: Zhi[tzHandle.Zhi],
    ZhiNum: tzHandle.Zhi,
  };
};

/**
 * 建除十二神
 * @param {Number} tzYear 年柱
 * @param {Number} tzMonth 月柱
 * @param {Number} tzDay 日柱
 */
solarTerm.prototype.sign = function (tzYear, tzMonth, tzDay) {
  var signMonthNum = tzDay - tzMonth;
  var signYearNum = tzDay - tzYear;
  if (Math.abs(signMonthNum) == 6 || Math.abs(signYearNum) == 6) {
    // 地支相冲
    console.log("地支相冲，大事勿用");
    return;
  }
  var signIndex =
    signMonthNum < 0 ? signData.length - Math.abs(signMonthNum) : signMonthNum;

  console.log(signSuitable[signIndex], signTaboo[signIndex]);
};

module.exports = solarTerm;