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34 lines
876 B
Haskell
34 lines
876 B
Haskell
{-|
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Scry helpers
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-}
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module Urbit.King.Scry
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( scryNow
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, module Urbit.Vere.Pier.Types
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)
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where
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import Urbit.Prelude
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import Urbit.Vere.Serf.Types
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import Urbit.Arvo.Common (Desk)
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import Urbit.Vere.Pier.Types (ScryFunc)
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scryNow :: forall e n
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. (HasLogFunc e, FromNoun n)
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=> ScryFunc
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-> Term -- ^ vane + care as two-letter string
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-> Desk -- ^ desk in scry path
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-> [Text] -- ^ resource path to scry for
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-> RIO e (Maybe n)
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scryNow scry vare desk path =
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io (scry Nothing (EachNo $ DemiOnce vare desk (Path $ MkKnot <$> path)))
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>>= \case
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Just ("omen", fromNoun @(Path, Term, n) -> Just (_,_,v)) -> pure $ Just v
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Just (_, fromNoun @n -> Just v) -> pure $ Just v
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Just (_, n) -> do
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logError $ displayShow ("uncanny scry result", vare, path, n)
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pure Nothing
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Nothing -> pure Nothing
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