utils.ts

declare global {
    interface Date {
        convertToICSDate(): [number, number, number];
        addDay(day : number): Date;
        addWeek(week : number): Date;
    }
}

import { nanoid } from 'nanoid'

Date.prototype.convertToICSDate = function(): [number, number, number] {
    let year = this.getFullYear();
    let month = this.getMonth() + 1;
    let date = this.getDate();
    return [year, month, date];
}

Date.prototype.addDay = function(i : number) : Date {
    return new Date(this.getTime() + i * 86400 * 1000);
}

Date.prototype.addWeek = function(i : number) : Date {
    return this.addDay(i * 7)
}

export function uidGenerateFactory(base?: string): (s?: string) => string {
    if (base === null || base?.length == 0) {
        base = __filename
    }

    return s => { 
        if (s === null || s?.length == 0) {
            s = nanoid()
        }
        return `${base}-${s}`
    }
}