blob: efbef8cb117ad08c7a74c46d54335f429d980ed2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
module Date
( Date(..)
, getCurrentDate
, sameDayAndMonth
, yearsGap
) where
import Data.Time.Clock
import Data.Time.Calendar
import Data.Time.LocalTime
data Date = Date
{ year :: Int
, month :: Int
, day :: Int
} deriving (Eq, Show)
getCurrentDate :: IO Date
getCurrentDate = do
now <- getCurrentTime
timezone <- getCurrentTimeZone
let zoneNow = utcToLocalTime timezone now
let (year, month, day) = toGregorian $ localDay zoneNow
return $ Date (fromIntegral year) month day
sameDayAndMonth :: Date -> Date -> Bool
sameDayAndMonth (Date _ m1 d1) (Date _ m2 d2) = m1 == m2 && d1 == d2
yearsGap :: Date -> Date -> Int
yearsGap (Date y1 _ _) (Date y2 _ _) = abs (y2 - y1)
|
