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4f0db471bc
move time-related functions from `Main.hs` to a new `Time` module for better organization and code separation
28 lines
923 B
Haskell
28 lines
923 B
Haskell
module Pure where
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import Data.Time (ZonedTime)
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import Data.Time.RFC3339 (formatTimeRFC3339)
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import Data.Time.LocalTime (zonedTimeToUTC)
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readLines :: [String] -> Maybe (String, Double, Double, String)
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readLines [msg, latStr, lonStr, tz] = Just (msg, read latStr, read lonStr, tz)
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readLines _ = Nothing
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kill :: String -> String
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kill = (++) "atrm "
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after :: (Eq a) => a -> [a] -> [a]
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after c = drop 1 . dropWhile (/= c)
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formatTime :: ZonedTime -> String
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formatTime = take 5 . after 'T' . formatTimeRFC3339
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buildCmd :: String -> ZonedTime -> String
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buildCmd script time = "echo \"" ++ script ++ "\" | at " ++ formatTime time
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sunriseNext :: ZonedTime -> ZonedTime -> ZonedTime -> Bool
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sunriseNext sunriseTime sunsetTime time =
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let utcTimeNow = zonedTimeToUTC time
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utcSunrise = zonedTimeToUTC sunriseTime
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utcSunset = zonedTimeToUTC sunsetTime
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in utcTimeNow < utcSunrise || utcTimeNow > utcSunset
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