nhb-toolbox/dist/esm/date/plugins/zodiacPlugin.js

A versatile collection of smart, efficient, and reusable utility functions, classes and types for everyday development needs.

import { ZODIAC_PRESETS } from '../constants.js';
import { _padZero } from '../helpers.js';
export const zodiacPlugin = ($Chronos) => {
    function _toHundreds(range) {
        return range[0] * 100 + range[1];
    }
    function _resolveSigns(options) {
        const { preset = 'western', custom } = options ?? {};
        const sorted = [...(custom ?? ZODIAC_PRESETS[preset])].sort((a, b) => _toHundreds(a[1]) - _toHundreds(b[1]));
        return sorted;
    }
    $Chronos.prototype.getZodiacSign = function (options) {
        const { birthDate } = options ?? {};
        let month;
        let date;
        if (birthDate?.includes('-')) {
            [month, date] = birthDate.split('-').map(Number);
        }
        else {
            month = this.isoMonth;
            date = this.date;
        }
        const sortedSigns = _resolveSigns(options);
        for (let i = sortedSigns.length - 1; i >= 0; i--) {
            const [sign, [m, d]] = sortedSigns[i];
            if (month > m || (month === m && date >= d)) {
                return sign;
            }
            if (i === 0) {
                return sortedSigns.at(-1)?.[0];
            }
        }
        return sortedSigns[0][0];
    };
    $Chronos.prototype.zodiac = function (options) {
        return this.getZodiacSign(options);
    };
    $Chronos.prototype.getZodiacMeta = (sign, options) => {
        const sortedSigns = _resolveSigns(options);
        const index = sortedSigns.findIndex(([s]) => s === sign);
        if (index === -1) {
            throw new RangeError(`Invalid zodiac sign: "${sign}"`);
        }
        const [startMonth, startDate] = sortedSigns[index][1];
        const [endMonth, endDate] = (sortedSigns[index + 1] ?? sortedSigns[0])[1];
        return {
            index,
            sign,
            start: `${_padZero(startMonth)}-${_padZero(startDate)}`,
            end: `${_padZero(endMonth)}-${_padZero(endDate - 1)}`,
        };
    };
};