ziwei-mcp
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紫微斗数 MCP (Ziwei Doushu Model Context Protocol) - 基于 MCP 协议的紫微斗数命理分析工具
336 lines (305 loc) • 8.16 kB
JavaScript
/**
* 农历转换核心算法
*/
const { Lunar, Solar } = require("lunar-javascript");
/**
* 农历日期接口
* @typedef {Object} LunarDate
* @property {number} year - 年份
* @property {number} month - 月份
* @property {number} day - 日期
* @property {number} hour - 小时
* @property {boolean} isLeapMonth - 是否闰月
* @property {string} yearInGanZhi - 年干支
* @property {string} monthInGanZhi - 月干支
* @property {string} dayInGanZhi - 日干支
* @property {string} hourInGanZhi - 时干支
* @property {string} solarTerm - 节气
*/
/**
* 阳历日期接口
* @typedef {Object} SolarDate
* @property {number} year - 年份
* @property {number} month - 月份
* @property {number} day - 日期
* @property {number} hour - 小时
* @property {number} minute - 分钟
*/
class CalendarConverter {
/**
* 阳历转农历
* @param {SolarDate} solarDate - 阳历日期
* @returns {LunarDate} 农历日期
*/
static solarToLunar(solarDate) {
try {
const solar = Solar.fromYmdHms(
solarDate.year,
solarDate.month,
solarDate.day,
solarDate.hour,
solarDate.minute,
0,
);
const lunar = solar.getLunar();
return {
year: lunar.getYear(),
month: Math.abs(lunar.getMonth()), // 闰月时getMonth()返回负数
day: lunar.getDay(),
hour: solarDate.hour,
isLeapMonth: lunar.getMonth() < 0, // 闰月时月份为负数
yearInGanZhi: lunar.getYearInGanZhi(),
monthInGanZhi: lunar.getMonthInGanZhi(),
dayInGanZhi: lunar.getDayInGanZhi(),
hourInGanZhi: this.getHourInGanZhi(solarDate.hour),
solarTerm: this.getSolarTerm(solarDate) || "",
};
} catch (error) {
console.error("农历转换失败:", error);
// 返回一个默认值而不是抛出错误
return {
year: solarDate.year,
month: solarDate.month,
day: solarDate.day,
hour: solarDate.hour,
isLeapMonth: false,
yearInGanZhi: "甲子",
monthInGanZhi: "甲子",
dayInGanZhi: "甲子",
hourInGanZhi: this.getHourInGanZhi(solarDate.hour),
solarTerm: "",
};
}
}
/**
* 农历转阳历
* @param {LunarDate} lunarDate - 农历日期
* @returns {SolarDate} 阳历日期
*/
static lunarToSolar(lunarDate) {
const lunar = Lunar.fromYmd(lunarDate.year, lunarDate.month, lunarDate.day);
const solar = lunar.getSolar();
return {
year: solar.getYear(),
month: solar.getMonth(),
day: solar.getDay(),
hour: lunarDate.hour,
minute: 0,
};
}
/**
* 获取时辰干支
* @param {number} hour - 小时
* @returns {string} 时辰干支
*/
static getHourInGanZhi(hour) {
const hourBranches = [
"子",
"丑",
"寅",
"卯",
"辰",
"巳",
"午",
"未",
"申",
"酉",
"戌",
"亥",
];
// 时辰对应关系：23-1点为子时，1-3点为丑时，以此类推
let hourIndex;
if (hour === 23) {
hourIndex = 0; // 子时
} else {
hourIndex = Math.floor((hour + 1) / 2);
}
return hourBranches[hourIndex] || "子";
}
/**
* 获取生肖
* @param {number} year - 年份
* @returns {string} 生肖
*/
static getZodiac(year) {
const zodiacs = [
"鼠",
"牛",
"虎",
"兔",
"龙",
"蛇",
"马",
"羊",
"猴",
"鸡",
"狗",
"猪",
];
return zodiacs[(year - 4) % 12] || "鼠";
}
/**
* 获取五行纳音
* @param {string} ganZhi - 干支
* @returns {string} 纳音
*/
static getNayin(ganZhi) {
const nayinMap = {
甲子: "海中金",
乙丑: "海中金",
丙寅: "炉中火",
丁卯: "炉中火",
戊辰: "大林木",
己巳: "大林木",
庚午: "路旁土",
辛未: "路旁土",
壬申: "剑锋金",
癸酉: "剑锋金",
甲戌: "山头火",
乙亥: "山头火",
丙子: "涧下水",
丁丑: "涧下水",
戊寅: "城头土",
己卯: "城头土",
庚辰: "白蜡金",
辛巳: "白蜡金",
壬午: "杨柳木",
癸未: "杨柳木",
甲申: "泉中水",
乙酉: "泉中水",
丙戌: "屋上土",
丁亥: "屋上土",
戊子: "霹雳火",
己丑: "霹雳火",
庚寅: "松柏木",
辛卯: "松柏木",
壬辰: "长流水",
癸巳: "长流水",
甲午: "砂中金",
乙未: "砂中金",
丙申: "山下火",
丁酉: "山下火",
戊戌: "平地木",
己亥: "平地木",
庚子: "壁上土",
辛丑: "壁上土",
壬寅: "金箔金",
癸卯: "金箔金",
甲辰: "覆灯火",
乙巳: "覆灯火",
丙午: "天河水",
丁未: "天河水",
戊申: "大驿土",
己酉: "大驿土",
庚戌: "钗钏金",
辛亥: "钗钏金",
壬子: "桑柘木",
癸丑: "桑柘木",
甲寅: "大溪水",
乙卯: "大溪水",
丙辰: "沙中土",
丁巳: "沙中土",
戊午: "天上火",
己未: "天上火",
庚申: "石榴木",
辛酉: "石榴木",
壬戌: "大海水",
癸亥: "大海水",
};
return nayinMap[ganZhi] || "未知";
}
/**
* 计算年龄
* @param {SolarDate} birthDate - 出生日期
* @param {SolarDate} [currentDate] - 当前日期
* @returns {number} 年龄
*/
static calculateAge(birthDate, currentDate) {
const current = currentDate || {
year: new Date().getFullYear(),
month: new Date().getMonth() + 1,
day: new Date().getDate(),
hour: new Date().getHours(),
minute: new Date().getMinutes(),
};
let age = current.year - birthDate.year;
// 检查是否已过生日
if (
current.month < birthDate.month ||
(current.month === birthDate.month && current.day < birthDate.day)
) {
age--;
}
return age;
}
/**
* 获取节气信息
* @param {SolarDate} solarDate - 阳历日期
* @returns {string} 节气
*/
static getSolarTerm(solarDate) {
try {
const solar = Solar.fromYmdHms(
solarDate.year,
solarDate.month,
solarDate.day,
solarDate.hour,
solarDate.minute,
0,
);
// 返回基于月份的大概节气
const monthTerms = [
"小寒",
"立春",
"惊蛰",
"清明",
"立夏",
"芒种",
"小暑",
"立秋",
"白露",
"寒露",
"立冬",
"大雪",
];
return monthTerms[solarDate.month - 1] || "";
} catch (error) {
console.warn("获取节气失败:", error);
return "";
}
}
/**
* 验证日期格式
* @param {string} dateStr - 日期字符串
* @param {string} timeStr - 时间字符串
* @returns {boolean} 是否有效
*/
static validateDate(dateStr, timeStr) {
const dateRegex = /^\d{4}-\d{2}-\d{2}$/;
const timeRegex = /^\d{2}:\d{2}$/;
if (!dateRegex.test(dateStr) || !timeRegex.test(timeStr)) {
return false;
}
const dateParts = dateStr.split("-").map(Number);
const timeParts = timeStr.split(":").map(Number);
if (dateParts.length !== 3 || timeParts.length !== 2) return false;
const [year, month, day] = dateParts;
const [hour, minute] = timeParts;
// 基本范围检查
if (!year || year < 1900 || year > 2100) return false;
if (!month || month < 1 || month > 12) return false;
if (!day || day < 1 || day > 31) return false;
if (hour == null || hour < 0 || hour > 23) return false;
if (minute == null || minute < 0 || minute > 59) return false;
// 检查日期是否有效
const date = new Date(year, month - 1, day);
return (
date.getFullYear() === year &&
date.getMonth() === month - 1 &&
date.getDate() === day
);
}
}
module.exports = {
CalendarConverter,
};