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1module Import.Ing.Shared where
2
3import Data.Attoparsec.Text qualified as AP
4import Data.Char (digitToInt, ord)
5import Data.Csv qualified as C
6import Data.Decimal (Decimal, DecimalRaw (Decimal), normalizeDecimal)
7import Data.Iban (Iban, mkIban)
8import Data.Text qualified as T
9import Data.Time.Calendar (Day)
10import Data.Time.Clock (UTCTime)
11import Data.Time.Format (defaultTimeLocale, parseTimeM)
12import Data.Time.Zones (TZ, localTimeToUTCTZ)
13
14data DebitCredit = Debit | Credit deriving (Show)
15
16readDecimal :: T.Text -> Either String Decimal
17readDecimal = AP.parseOnly $ do
18 decPart <- AP.decimal
19 _ <- AP.char ','
20 f1 <- AP.digit
21 f2 <- AP.digit
22 AP.endOfInput
23 let fracPart = fromIntegral $ digitToInt f1 * 10 + digitToInt f2
24 return $ normalizeDecimal (Decimal 2 (decPart * 100 + fracPart))
25
26scsvOptions :: C.DecodeOptions
27scsvOptions = C.defaultDecodeOptions {C.decDelimiter = fromIntegral (ord ';')}
28
29eitherToCP :: Either String a -> C.Parser a
30eitherToCP = either fail return
31
32decimalCP :: T.Text -> C.Parser Decimal
33decimalCP = eitherToCP . readDecimal
34
35dateCP :: String -> T.Text -> C.Parser Day
36dateCP fmt = parseTimeM False defaultTimeLocale fmt . T.unpack
37
38maybeCP :: (T.Text -> C.Parser a) -> T.Text -> C.Parser (Maybe a)
39maybeCP p t = if T.null t then return Nothing else Just <$> p t
40
41ibanCP :: T.Text -> C.Parser Iban
42ibanCP = eitherToCP . mkIban
43
44timestampCP :: String -> TZ -> T.Text -> C.Parser UTCTime
45timestampCP fmt amsTz t = do
46 localTime <- parseTimeM False defaultTimeLocale fmt (T.unpack t)
47 return $ localTimeToUTCTZ amsTz localTime