-import Control.Applicative( (<$>), (<*>) )
-import Data.DateTime( DateTime(..), parseDateTime, formatDateTime, startOfTime, diffSeconds )
-import Data.List.Split( splitOn )
-import Data.List( zipWith4, transpose )
-import Data.Maybe( fromJust, fromMaybe )
-import Data.Monoid( mempty )
-import Data.Time.Clock( secondsToDiffTime )
-import Options.Applicative( execParser, info, strOption, long )
+import Control.Applicative( (<$>) )
+import Control.Monad( unless )
+import Data.Time.Clock( UTCTime(..) )
+import Data.Time.LocalTime( TimeZone(), ZonedTime(..), zonedTimeToUTC, utcToZonedTime )
+import Diddo( Diddo(..), LogEntry(..), parseDiddoLogline, formatDiddo, logToDiddo, parseToZonedTime )
+import System.Console.GetOpt
import System.Environment( getArgs )
-import HMSTime( HMSTime(..), secondsToHMS )
-import Diddo.Entry( DiddoEntry(..) )
+import System.Exit( exitSuccess, exitFailure )
+import System.IO( stderr, hPutStr )
+import qualified Data.Map as Map
+import qualified Data.Text as T
+import qualified Data.Text.IO as TIO
-data DiddoOpts = DiddoOpts
- { inDateFmt :: String
- , inFile :: String
- }
+data Opt = Opt
+ { optVerbose :: Bool
+ , optVersion :: Bool
+ , optHelp :: Bool
+ , optInputFiles :: [String]
+ , optOutputFile :: String
+ , optInputFormat :: String
+ , optOutputFormat :: String
+ , optStartDate :: String
+ , optEndDate :: String
+ }
-calculateDeltas :: [DateTime] -> [Integer]
-calculateDeltas dateTimes = zipWith diffSeconds dateTimes ((startOfDay $ head dateTimes) : init dateTimes)
+defaultOpts :: Opt
+defaultOpts = Opt
+ { optVerbose = False
+ , optVersion = False
+ , optHelp = False
+ , optInputFiles = []
+ , optOutputFile = ""
+ , optInputFormat = "%FT%T%z"
+ , optOutputFormat = "%FT%T%z"
+ , optStartDate = ""
+ , optEndDate = ""
+ }
-parseDateTimeFormat :: String -> String -> DateTime
-parseDateTimeFormat format = fromMaybe (error "Input data broken.") . parseDateTime format
+availableOptions :: [OptDescr (Opt -> IO Opt)]
+availableOptions =
+ [ Option ['h'] ["help"]
+ (NoArg (\ _ -> putStrLn (usageInfo "Usage: diddohs [OPTION...]" availableOptions) >> exitSuccess))
+ "Display program help"
+ , Option ['v'] ["verbose"]
+ (NoArg (\ opts -> return opts { optVerbose = True }))
+ "More detailed output"
+ , Option ['V'] ["version"]
+ (NoArg (\ opts -> return opts { optVersion = True }))
+ "Display program version"
+ , Option ['f'] ["file"]
+ (ReqArg (\ arg opts -> return opts { optInputFiles = optInputFiles opts ++ [arg]}) "FILE" )
+ "Read from FILE"
+ , Option ['w'] ["output"]
+ (ReqArg (\ arg opts -> return opts { optOutputFile = arg }) "FILE")
+ "Write to FILE"
+ , Option ['i'] ["informat"]
+ (ReqArg (\ arg opts -> return opts { optInputFormat = arg }) "FORMAT")
+ "Timeformat used in input"
+ , Option ['o'] ["outformat"]
+ (ReqArg (\ arg opts -> return opts { optOutputFormat = arg }) "FORMAT")
+ "Timeformat used in output"
+ , Option ['s'] ["start"]
+ (ReqArg (\ arg opts -> return opts { optStartDate = arg }) "DATE")
+ "Start of reporting period"
+ , Option ['e'] ["end"]
+ (ReqArg (\ arg opts -> return opts { optEndDate = arg }) "DATE")
+ "End of reporting period"
+ ]
-startOfDay :: DateTime -> DateTime
-startOfDay = fromJust . parseDateTime "%x" . formatDateTime "%x"
+-- SECTION: Map of logentries to Map of Diddos
+logentryMapToDiddoMap :: Map.Map UTCTime Diddo.LogEntry -> Map.Map UTCTime Diddo.Diddo
+logentryMapToDiddoMap logmap = Map.mapWithKey toDddEntry logmap
+ where
+ toDddEntry key value = Diddo.logToDiddo (precedingTimestamp key) value
+ precedingTimestamp x = case Map.lookupLT x logmap of
+ Just (y,_) -> y
+ Nothing -> fst $ Map.findMin logmap
+-- SECTION: Map of logentries to Map of DiddoEntries
-mainWithOpts :: DiddoOpts -> IO ()
-mainWithOpts opts =
- do
- [ timeStrings
- , entries
- ] <- transpose . map (splitOn ";") . lines <$> readFile (inFile opts)
+main :: IO ()
+main = do
+ -- SECTION: option processing
+ (givenOptions,args,errs) <- getArgs >>= return . getOpt Permute availableOptions
+
+ unless (null errs) $ do
+ mapM_ (hPutStr stderr) errs
+ exitFailure
+
+ effectiveOptions <- foldl (>>=) (return defaultOpts) givenOptions
let
- deltasHMS = map secondsToHMS $ calculateDeltas $ map (parseDateTimeFormat (inDateFmt opts)) timeStrings
- diddos_summarized = zipWith4 DiddoEntry ("" : init timeStrings) timeStrings deltasHMS entries
+ inDateFmt = optInputFormat effectiveOptions
+ outDateFmt = optOutputFormat effectiveOptions
- mapM_ print diddos_summarized
+ startDate = parseToZonedTime inDateFmt $ optStartDate effectiveOptions
+ endDate = parseToZonedTime inDateFmt $ optEndDate effectiveOptions
+ -- SECTION: option processing
-main :: IO ()
-main = execParser opts >>= mainWithOpts
- where
- opts = info parser mempty
- parser = DiddoOpts
- <$> strOption ( long "indateform" )
- <*> strOption ( long "infile" )
+ loglines <- case optInputFiles effectiveOptions of
+ files@(_:_) -> T.lines . T.concat <$> mapM TIO.readFile files
+ [] -> T.lines <$> TIO.getContents
+
+ let
+ timestampLogentryMap = Map.fromList $ map Diddo.parseDiddoLogline loglines
+ (_, _, startedTimestampLogentryMap) = Map.splitLookup (zonedTimeToUTC startDate) timestampLogentryMap
+ (endedTimestampLogentryMap, lastEntry, _) = Map.splitLookup (zonedTimeToUTC endDate) startedTimestampLogentryMap
+ timestampDiddoMap = logentryMapToDiddoMap timestampLogentryMap
+
+ -- DEBUG
+ mapM_ putStrLn args
+ -- DEBUG
+
+ mapM_ (TIO.putStrLn . snd) $ Map.toAscList $ Map.map (Diddo.formatDiddo outDateFmt) timestampDiddoMap