atums.world/src/helpers/char.ts

102 lines
2.2 KiB
TypeScript

import { DateTime } from "luxon";
export function timestampToReadable(timestamp?: number): string {
const date: Date =
timestamp && !isNaN(timestamp) ? new Date(timestamp) : new Date();
if (isNaN(date.getTime())) return "Invalid Date";
return date.toISOString().replace("T", " ").replace("Z", "");
}
export function isUUID(uuid: string): boolean {
const regex: RegExp =
/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/;
return regex.test(uuid);
}
export function getNewTimeUTC(
durationStr: string,
from: DateTime = DateTime.utc(),
): string | null {
const duration: DurationObject = parseDuration(durationStr);
const newTime: DateTime = from.plus({
years: duration.years,
months: duration.months,
weeks: duration.weeks,
days: duration.days,
hours: duration.hours,
minutes: duration.minutes,
seconds: duration.seconds,
});
return newTime.toSQL({ includeOffset: false });
}
export function parseDuration(input: string): DurationObject {
const regex: RegExp = /(\d+)(y|mo|w|d|h|m|s)/g;
const matches: RegExpMatchArray[] = [...input.matchAll(regex)];
const duration: DurationObject = {
years: 0,
months: 0,
weeks: 0,
days: 0,
hours: 0,
minutes: 0,
seconds: 0,
};
for (const match of matches) {
const value: number = parseInt(match[1], 10);
const unit: string = match[2];
switch (unit) {
case "y":
duration.years = value;
break;
case "mo":
duration.months = value;
break;
case "w":
duration.weeks = value;
break;
case "d":
duration.days = value;
break;
case "h":
duration.hours = value;
break;
case "m":
duration.minutes = value;
break;
case "s":
duration.seconds = value;
break;
}
}
return duration;
}
export function isValidTimezone(timezone: string): boolean {
return DateTime.local().setZone(timezone).isValid;
}
export function generateRandomString(length?: number): string {
if (!length) {
length = length || Math.floor(Math.random() * 10) + 5;
}
const characters: string =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
let result: string = "";
for (let i: number = 0; i < length; i++) {
result += characters.charAt(
Math.floor(Math.random() * characters.length),
);
}
return result;
}