--
module TSN.Picklers (
xp_date,
+ xp_date_padded,
+ xp_earnings,
xp_gamedate,
+ xp_racedate,
xp_tba_time,
xp_time,
xp_time_stamp )
where
-- System imports.
+import Data.List ( intercalate )
+import Data.List.Split ( chunksOf )
+import Data.String.Utils ( replace )
import Data.Time.Clock ( NominalDiffTime, UTCTime, addUTCTime )
import Data.Time.Format ( formatTime, parseTime )
import System.Locale ( defaultTimeLocale )
time_stamp_format )
+-- | The format string for a base date in m/d/yyyy format. The
+-- day/month are not padded at all. This will match for example,
+--
+-- * 2\/15\/1983
+--
+-- * 1\/1\/0000
+--
+date_format :: String
+date_format = "%-m/%-d/%Y"
+
+
+-- | The format string for a base date in mm/dd/yyyy format. The
+-- day/month are padded to two characters with zeros. This will
+-- match for example,
+--
+-- * 02\/15\/1983
+--
+-- * 01\/01\/0000
+--
+date_format_padded :: String
+date_format_padded = "%0m/%0d/%Y"
+
+
-- | (Un)pickle a UTCTime without the time portion.
--
xp_date :: PU UTCTime
xp_date =
(to_date, from_date) `xpWrapMaybe` xpText
where
- format = "%-m/%-d/%Y"
+ to_date :: String -> Maybe UTCTime
+ to_date = parseTime defaultTimeLocale date_format
+ from_date :: UTCTime -> String
+ from_date = formatTime defaultTimeLocale date_format
+
+
+-- | (Un)pickle a UTCTime without the time portion. The day/month are
+-- padded to two characters with zeros.
+--
+xp_date_padded :: PU UTCTime
+xp_date_padded =
+ (to_date, from_date) `xpWrapMaybe` xpText
+ where
to_date :: String -> Maybe UTCTime
- to_date = parseTime defaultTimeLocale format
+ to_date = parseTime defaultTimeLocale date_format_padded
from_date :: UTCTime -> String
- from_date = formatTime defaultTimeLocale format
+ from_date = formatTime defaultTimeLocale date_format_padded
+
+
+
+-- | Format a number as a string using a comma as the thousands
+-- separator.
+--
+-- Examples:
+--
+-- >>> format_commas 0
+-- "0"
+-- >>> format_commas 10
+-- "10"
+-- >>> format_commas 100
+-- "100"
+-- >>> format_commas 1000
+-- "1,000"
+-- >>> format_commas 10000
+-- "10,000"
+-- >>> format_commas 100000
+-- "100,000"
+-- >>> format_commas 1000000
+-- "1,000,000"
+--
+format_commas :: Int -> String
+format_commas x =
+ reverse (intercalate "," $ chunksOf 3 $ reverse $ show x)
+
+-- | Parse \<Earnings\> from an 'AutoRaceResultsListing'. These are
+-- essentially 'Int's, but they look like,
+--
+-- * \<Earnings\>336,826\</Earnings\>
+--
+-- * \<Earnings\>1,000,191\</Earnings\>
+--
+-- * \<Earnings\>TBA\</Earnings\>
+--
+xp_earnings :: PU (Maybe Int)
+xp_earnings =
+ (to_earnings, from_earnings) `xpWrap` xpText
+ where
+ strip_commas :: String -> String
+ strip_commas = replace "," ""
+
+ to_earnings :: String -> Maybe Int
+ to_earnings s
+ | s == "TBA" = Nothing
+ | otherwise = Just $ (read . strip_commas) s
+
+ from_earnings :: Maybe Int -> String
+ from_earnings Nothing = "TBA"
+ from_earnings (Just i) = format_commas i
+
+
+-- | (Un)pickle a 'UTCTime' from a \<RaceDate\> element in an
+-- 'AutoRaceResults' message.
+--
+-- Examples:
+--
+-- * \<RaceDate\>6/1/2014 1:00:00 PM\</RaceDate\>
+--
+-- * \<RaceDate\>5/24/2014 2:45:00 PM\</RaceDate\>
+--
+xp_racedate :: PU UTCTime
+xp_racedate =
+ (to_racedate, from_racedate) `xpWrapMaybe` xpText
+ where
+ format = date_format ++ " " ++ "%-I:%M:%S %p"
+
+ to_racedate :: String -> Maybe UTCTime
+ to_racedate = parseTime defaultTimeLocale format
+
+ from_racedate :: UTCTime -> String
+ from_racedate = formatTime defaultTimeLocale format
-- | (Un)pickle a UTCTime from a weather forecast's gamedate. Example
| otherwise = parseTime defaultTimeLocale time_format s
from_time :: Maybe UTCTime -> String
- from_time Nothing = ""
+ from_time Nothing = "TBA"
from_time (Just t) = formatTime defaultTimeLocale time_format t