Parse a relative time from a specific referenceTime

[amenella]

Hi everyone,

Would it be possible to parse a time from a specific referenceTime ?
As i understood (let me know if i'm wrong) for now referenceTime is only based on the given timezone.

What I would like to do is to give as input a specific datetime, and get a result from that specific datetime.

For example if my inputs are

input: {
  referenceTime: '2017-06-08T15:00:00+02:00',
  text: 'next monday at 8am',
}

I would like to get next monday at 8am from the 8th of june 2017, that means 2017-06-12T08:00:00+02:00

Would it be possible ?

Thanks !

[patapizza]

Hi @amenella,

This is possible using fromZonedTime from Duckling.Resolve.

Example running a REPL session: st repl --no-load.

> :l Duckling.Core
> import qualified Data.Time as Time
> d = Time.fromGregorian 2017 6 8
> tod = Time.TimeOfDay 0 0 0
> lt = Time.LocalTime d tod
> tz = Time.TimeZone 120 False "hmm"
> zt = Time.ZonedTime lt tz
> duckt = fromZonedTime zt
> parse "next monday at 8am" Context {referenceTime = duckt, lang = EN} [This Time]
[Entity {dim = "time", body = "next monday at 8am", value = "{\"values\":[{\"value\":\"2017-06-12T08:00:00.000+02:00\",\"grain\":\"hour\",\"type\":\"value\"}],\"value\":\"2017-06-12T08:00:00.000+02:00\",\"grain\":\"hour\",\"type\":\"value\"}", start = 0, end = 18}]

Let me expose fromZonedTime in Duckling.Core.

[amenella]

Thanks for the reply @patapizza

if i'm not missing anything here, after having exposed fromZonedTime in Duckling.Core, we have to get our custom post param on the server side in ExampleMain.hs and then pass it to the context as referenceTime.

Am I right ?

Please forgive me if my question are meaningless, I'm just a beginner in haskell...

[patapizza]

Yes that's right. :)

Curious about why do timezones not work for you?

[amenella]

Timezones are good but in a discussion, context always differs, especially when you're talking about time.
Take this example of conversation (referenceTime is thursday 1st of june 2017)

1. Are you free next tuesday ? (tuesday 6th of june 2017)
2. No, but I am on the friday. (friday 9th of june 2017)

You can note that in 2. friday refers to friday after the next tuesday, so we have to update the referenceTime to the next tuesday's date, that means tesday 6th of june 2017, which was not possible until your commit @patapizza

Hope it's fullfilling your curiosity ! :)

Thanks again !

[ydshieh]

Thanks for the reply @patapizza

if i'm not missing anything here, after having exposed fromZonedTime in Duckling.Core, we have to get our custom post param on the server side in ExampleMain.hs and then pass it to the context as referenceTime.

Am I right ?

Please forgive me if my question are meaningless, I'm just a beginner in haskell...

Hi, at the current version, can we directly specify referencetime as augument in the request url? For example, curl -XPOST http://0.0.0.0:8000/parse --data 'locale=en_GB&referencetime=XXX&text=tomorrow at eight'

[patapizza]

@chiapas: Yes using reftime.