On branch master

[user/henk/code/haskell/diddohs.git] / Diddo.hs

diff --git a/Diddo.hs b/Diddo.hs
index cbbbce0384d17211bc8e0f8320a0d02e0006aee2..2100b257dba6a14dc503ebc83f6d15580e53b5a7 100644 (file)
--- a/Diddo.hs
+++ b/Diddo.hs
@@ -1,87 +1,80 @@
+{-# LANGUAGE OverloadedStrings #-}
+
 module Diddo
-( LogLine(LogLine)
-, LogEntry(LogEntry)
-, DiddoEntry(DiddoEntry)
-, DiddoEntry2(DiddoEntry2)
+( LogEntry(LogEntry)
+, Diddo(Diddo)
+, formatDiddo
 , parseDiddoLogline
-, formatDiddoEntry
-, timestamp
-, logToDiddoEntry
+, logToDiddo
+, parseToZonedTime
 ) where
 
-import HMSTime( HMSTime, secondsToHMS )
-import Data.List( intercalate )
-import Data.DateTime( diffSeconds )
-import Data.Time.LocalTime( TimeZone() )
-import Data.Time.Clock( UTCTime() )
-import Data.Maybe( fromMaybe, fromJust )
-import Data.Time.Format( parseTime, formatTime )
-import Data.Time.LocalTime( LocalTime(..), ZonedTime(..), TimeZone(..), zonedTimeToUTC, utcToZonedTime, midnight, localDay )
-import Data.List.Split( splitOn )
+import Data.Maybe( fromMaybe )
+import Data.Time.Clock( UTCTime(), NominalDiffTime(), diffUTCTime )
+import Data.Time.Format( FormatTime(), parseTime, formatTime )
+import Data.Time.LocalTime( TimeZone(), ZonedTime(..), zonedTimeToUTC, utcToZonedTime )
+import Text.Parsec
 import System.Locale
-
-data LogLine
-  = LogLine String
-
-instance Show LogLine where
-    show (LogLine x) = x
-
-data LogEntry
-    = LogEntry
-        { timestamp     :: UTCTime
-        , timezone      :: TimeZone
-        , text          :: String
-        }
-
-instance Show LogEntry where
-    show x = (show $ timestamp x) ++ (show $ timezone x) ++ text x
-
-data DiddoEntry = DiddoEntry String String HMSTime String
-
-data DiddoEntry2 = DiddoEntry2
-                    { startTime         :: ZonedTime
-                    , endTime           :: ZonedTime
-                    , comment           :: String
-                    }
-
-instance Show DiddoEntry where
-  show (DiddoEntry start finish delta entry) = intercalate ";" [start,finish,(show delta),entry]
-
-instance Show DiddoEntry2 where
-  show (DiddoEntry2 start finish entry) = intercalate ";" [show start,show finish,show $ diffSeconds (zonedTimeToUTC finish) (zonedTimeToUTC start),entry]
-
-formatDiddoEntry :: String -> DiddoEntry2 -> String
-formatDiddoEntry format (DiddoEntry2 start end comment) = (formatTime defaultTimeLocale format start) ++ ";" ++ (formatTime defaultTimeLocale format end) ++ ";" ++ (show $ secondsToHMS $ diffSeconds (zonedTimeToUTC end) (zonedTimeToUTC start)) ++ ";" ++ comment
-
-logToDiddoEntry :: UTCTime -> LogEntry -> DiddoEntry2
-logToDiddoEntry startutc logentry = DiddoEntry2 startZoned endZoned $ text logentry
+import Text.Printf( printf )
+import qualified Data.Text as T
+
+data LogEntry = LogEntry
+    { timestamp     :: UTCTime
+    , timezone      :: TimeZone
+    , text          :: T.Text
+    }
+
+data Diddo = Diddo
+    { startTime     :: ZonedTime
+    , endTime       :: ZonedTime
+    , comment       :: T.Text
+    }
+
+getTimestamp :: Diddo -> UTCTime
+getTimestamp = zonedTimeToUTC . endTime
+
+formatDiddo :: String -> Diddo -> T.Text
+formatDiddo format (Diddo start end text) = T.intercalate ";" diddoline
+    where
+        diddoline           = [startZonedString, endZonedString, delta, text]
+        startZonedString    = timeToText format start
+        endZonedString      = timeToText format end
+        startUTC            = zonedTimeToUTC start
+        endUTC              = zonedTimeToUTC end
+        delta               = diffTimeToHMSString $ diffUTCTime endUTC startUTC
+
+timeToText :: FormatTime a => String -> a -> T.Text
+timeToText format = T.pack . formatTime defaultTimeLocale format
+
+logToDiddo :: UTCTime -> LogEntry -> Diddo
+logToDiddo startutc logentry = Diddo startZoned endZoned $ text logentry
     where
         startZoned = utcToZonedTime (timezone logentry) startutc
         endZoned = utcToZonedTime (timezone logentry) $ timestamp logentry
 
+-- parseDiddoLogline' :: T.Text -> (UTCTime, LogEntry)
+-- parseDiddoLogline' line = (ts, LogEntry ts tz string)
 
-lineToEntry :: LogLine -> LogEntry
-lineToEntry (LogLine line) = LogEntry ts tz text
+parseDiddoLogline :: T.Text -> (UTCTime, LogEntry)
+parseDiddoLogline line = (ts, LogEntry ts tz string)
     where
-        splitLine           = splitOn ";" line
-        text                = intercalate ";" $ tail splitLine
-        time                = parseISOsecondsTime $ head splitLine
-        (ts,tz)             = (zonedTimeToUTC time, zonedTimeZone time)
+        (timestring:strings)    = T.splitOn ";" line
+        string                  = T.intercalate ";" strings
+        time                    = parseISOsecondsTime timestring
+        (ts,tz)                 = (zonedTimeToUTC time, zonedTimeZone time)
 
-parseDiddoLogline :: String -> LogEntry
-parseDiddoLogline line = LogEntry ts tz text
+parseToZonedTime :: String -> String -> ZonedTime
+parseToZonedTime format string = zt
     where
-        splitLine           = splitOn ";" line
-        text                = intercalate ";" $ tail splitLine
-        time                = parseISOsecondsTime $ head splitLine
-        (ts,tz)             = (zonedTimeToUTC time, zonedTimeZone time)
-
+        zt = fromMaybe (error $ "Input data broken: " ++ string) parsedTime
+        parsedTime = parseTime defaultTimeLocale format string
 
+parseISOsecondsTime :: T.Text -> ZonedTime
+parseISOsecondsTime timestring = parseToZonedTime (iso8601DateFormat $ Just "%T%z") $ T.unpack timestring
 
-
-parseToZonedTime :: String -> String -> ZonedTime
-parseToZonedTime format string = fromMaybe (error $ "Input data broken: " ++ string) $ parseTime defaultTimeLocale format string
-
-parseISOsecondsTime :: String -> ZonedTime
-parseISOsecondsTime = parseToZonedTime $ iso8601DateFormat $ Just "%T%z"
+diffTimeToHMSString :: NominalDiffTime -> T.Text
+diffTimeToHMSString delta = T.pack $ printf "%d:%02d:%02d" h m s
+    where
+        (mLeft, s) = floor delta `divMod` 60 :: (Int, Int)
+        (h, m)     = mLeft `divMod` 60