nhb-toolbox
Version:
A versatile collection of smart, efficient, and reusable utility functions and classes for everyday development needs.
39 lines (38 loc) • 1.52 kB
JavaScript
import { SEASON_PRESETS } from '../seasons.js';
/** * Plugin to inject `season` method */
export const seasonPlugin = (ChronosClass) => {
ChronosClass.prototype.season = function (options) {
const { preset = 'default' } = options ?? {};
const seasonSet = options?.seasons ?? SEASON_PRESETS[preset];
const dateStr = this.format('MM-DD');
for (const { name, boundary } of seasonSet) {
if ('startDate' in boundary && 'endDate' in boundary) {
const start = boundary.startDate;
const end = boundary.endDate;
if (start <= end) {
if (dateStr >= start && dateStr <= end)
return name;
}
else {
// Handles wrap-around seasons like Dec–Feb
if (dateStr >= start || dateStr <= end)
return name;
}
}
else if ('startMonth' in boundary && 'endMonth' in boundary) {
const { startMonth, endMonth } = boundary;
if (startMonth <= endMonth) {
if (this.month >= startMonth && this.month <= endMonth) {
return name;
}
}
else {
if (this.month >= startMonth || this.month <= endMonth) {
return name;
}
}
}
}
return 'Unknown';
};
};