2021-12-07 13:18:08 -05:00

54 lines
1.1 KiB
JavaScript

const minute = 60
const hour = minute * 60
const day = hour * 24
const week = day * 7
const year = day * 365.25
const REGEX = /^(\d+|\d+\.\d+) ?(seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)$/i
module.exports = (str) => {
const matched = REGEX.exec(str)
if (!matched) {
throw new TypeError(`invalid time period format ("${str}")`)
}
const value = parseFloat(matched[1])
const unit = matched[2].toLowerCase()
switch (unit) {
case 'sec':
case 'secs':
case 'second':
case 'seconds':
case 's':
return Math.round(value)
case 'minute':
case 'minutes':
case 'min':
case 'mins':
case 'm':
return Math.round(value * minute)
case 'hour':
case 'hours':
case 'hr':
case 'hrs':
case 'h':
return Math.round(value * hour)
case 'day':
case 'days':
case 'd':
return Math.round(value * day)
case 'week':
case 'weeks':
case 'w':
return Math.round(value * week)
case 'year':
case 'years':
case 'yr':
case 'yrs':
case 'y':
return Math.round(value * year)
}
}