76 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			76 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
{-# LANGUAGE CPP #-}
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{-|
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Print some statistics for the ledger.
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-}
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module Hledger.Cli.Commands.Stats
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where
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import Hledger.Data
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import Hledger.Cli.Options
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#if __GLASGOW_HASKELL__ <= 610
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import Prelude hiding ( putStr )
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import System.IO.UTF8
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#endif
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import qualified Data.Map as Map
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-- | Print various statistics for the ledger.
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stats :: [Opt] -> [String] -> Journal -> IO ()
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stats opts args j = do
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  today <- getCurrentDay
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  putStr $ showStats opts args (journalToLedger nullfilterspec j) today
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showStats :: [Opt] -> [String] -> Ledger -> Day -> String
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showStats _ _ l today =
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    heading ++ unlines (map (uncurry (printf fmt)) stats)
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    where
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      heading = underline $ printf "Ledger statistics as of %s" (show today)
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      fmt = "%-" ++ show w1 ++ "s: %-" ++ show w2 ++ "s"
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      w1 = maximum $ map (length . fst) stats
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      w2 = maximum $ map (length . show . snd) stats
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      stats = [
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         ("File", filepath $ journal l)
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        ,("Period", printf "%s to %s (%d days)" (start span) (end span) days)
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        ,("Last transaction", maybe "none" show lastdate ++ showelapsed lastelapsed)
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        ,("Transactions", printf "%d (%0.1f per day)" tnum txnrate)
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        ,("Transactions last 30 days", printf "%d (%0.1f per day)" tnum30 txnrate30)
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        ,("Transactions last 7 days", printf "%d (%0.1f per day)" tnum7 txnrate7)
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--        ,("Payees/descriptions", show $ length $ nub $ map tdescription ts)
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        ,("Accounts", show $ length $ accounts l)
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        ,("Account tree depth", show $ maximum $ map (accountNameLevel.aname) $ accounts l)
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        ,("Commodities", printf "%s (%s)" (show $ length $ cs) (intercalate ", " $ sort $ map symbol cs)) 
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      -- Transactions this month     : %(monthtxns)s (last month in the same period: %(lastmonthtxns)s)
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      -- Uncleared transactions      : %(uncleared)s
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      -- Days since reconciliation   : %(reconcileelapsed)s
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      -- Days since last transaction : %(recentelapsed)s
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       ]
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           where
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             ts = sortBy (comparing tdate) $ jtxns $ journal l
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             lastdate | null ts = Nothing
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                      | otherwise = Just $ tdate $ last ts
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             lastelapsed = maybe Nothing (Just . diffDays today) lastdate
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             showelapsed Nothing = ""
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             showelapsed (Just days) = printf " (%d %s)" days' direction
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                                       where days' = abs days
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                                             direction | days >= 0 = "days ago"
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                                                       | otherwise = "days from now"
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             tnum = length ts
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             span = rawdatespan l
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             start (DateSpan (Just d) _) = show d
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             start _ = ""
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             end (DateSpan _ (Just d)) = show d
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             end _ = ""
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             days = fromMaybe 0 $ daysInSpan span
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             txnrate | days==0 = 0
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                     | otherwise = fromIntegral tnum / fromIntegral days :: Double
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             tnum30 = length $ filter withinlast30 ts
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             withinlast30 t = d >= addDays (-30) today && (d<=today) where d = tdate t
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             txnrate30 = fromIntegral tnum30 / 30 :: Double
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             tnum7 = length $ filter withinlast7 ts
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             withinlast7 t = d >= addDays (-7) today && (d<=today) where d = tdate t
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             txnrate7 = fromIntegral tnum7 / 7 :: Double
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             cs = Map.elems $ commodities l
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