Add a pickler for AutoRacingResults <RaceDate> elements.

[dead/htsn-import.git] / src / TSN / Picklers.hs

diff --git a/src/TSN/Picklers.hs b/src/TSN/Picklers.hs
index 608f907e5b43896dc059e6aca8ea5be144b9fc46..dc3ed9a05cb452fbba1ad884593fc5ace02967c9 100644 (file)
--- a/src/TSN/Picklers.hs
+++ b/src/TSN/Picklers.hs
@@ -3,7 +3,9 @@
 --
 module TSN.Picklers (
   xp_date,
+  xp_date_padded,
   xp_gamedate,
+  xp_racedate,
   xp_tba_time,
   xp_time,
   xp_time_stamp )
@@ -26,19 +28,73 @@ import TSN.Parse (
   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
+
+
+-- | (Un)pickle a 'UTCTime' from a \<RaceDate\> element in an
+--   'AutoRaceResults' message.
+--
+--   Example:
+--
+--   <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