2018-03-25 18:03:08 +00:00
|
|
|
// License: LGPL-3.0-or-later
|
2018-03-25 17:30:42 +00:00
|
|
|
const flyd = require('flyd')
|
|
|
|
|
const flyd_every = require('flyd/module/every')
|
|
|
|
|
const moment = require('moment-timezone')
|
|
|
|
|
const format = require('../common/format')
|
|
|
|
|
const pluralize = format.pluralize
|
|
|
|
|
|
|
|
|
|
// Given an end dateTime ("2015-11-17 19:00") and a time-zone ("America/Los_Angeles"),
|
|
|
|
|
// if the end dateTime has passed, return false
|
|
|
|
|
// if the end dateTime is more than a day away
|
|
|
|
|
// then return the number of days away
|
|
|
|
|
// if the end dateTime is less than a day away
|
|
|
|
|
// then return a countdown stream with seconds precision
|
|
|
|
|
//
|
|
|
|
|
// This function returns a stream.
|
|
|
|
|
//
|
|
|
|
|
// This function takes a timezone in the format "Country/City"
|
|
|
|
|
// See here: http://momentjs.com/timezone/
|
|
|
|
|
//
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
const timeRemaining = (endDateTime, tz) => {
|
|
|
|
|
if(!endDateTime) return flyd.stream(false)
|
|
|
|
|
const format = "YYYY-MM-DD hh:mm:ss zz"
|
|
|
|
|
tz = tz || ENV.nonprofitTimezone || 'America/Los_Angeles'
|
|
|
|
|
const [now, end] = [moment().tz(tz), moment(endDateTime, format).tz(tz).seconds(59)]
|
|
|
|
|
console.log({now, end})
|
|
|
|
|
if(end.isBefore(now)) return flyd.stream(false)
|
|
|
|
|
|
|
|
|
|
if(end.diff(now, 'hours') <= 24) {
|
|
|
|
|
return flyd.map(
|
|
|
|
|
t => moment.utc(end.diff(moment(t))).format("HH:mm:ss")
|
|
|
|
|
, flyd_every(1000))
|
|
|
|
|
} else {
|
|
|
|
|
return flyd.stream(pluralize(end.diff(now, 'days'), 'days'))
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
module.exports = timeRemaining
|
