51 lines
1.6 KiB
Haskell
51 lines
1.6 KiB
Haskell
{-# LANGUAGE CPP #-}
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{-|
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Print a histogram report.
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-}
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module Hledger.Cli.Commands.Histogram
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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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barchar = '*'
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-- | Print a histogram of some statistic per reporting interval, such as
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-- number of postings per day.
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histogram :: [Opt] -> [String] -> Ledger -> IO ()
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histogram opts args l = do
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t <- getCurrentLocalTime
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putStr $ showHistogram opts (optsToFilterSpec opts args t) l
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showHistogram :: [Opt] -> FilterSpec -> Ledger -> String
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showHistogram opts filterspec l = concatMap (printDayWith countBar) dayps
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where
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i = intervalFromOpts opts
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interval | i == NoInterval = Daily
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| otherwise = i
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fullspan = journalDateSpan $ journal l
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days = filter (DateSpan Nothing Nothing /=) $ splitSpan interval fullspan
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dayps = [(s, filter (isPostingInDateSpan s) ps) | s <- days]
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-- same as Register
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-- should count transactions, not postings ?
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ps = sortBy (comparing postingDate) $ filterempties $ filter matchapats $ filterdepth $ ledgerPostings l
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filterempties
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| Empty `elem` opts = id
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| otherwise = filter (not . isZeroMixedAmount . pamount)
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matchapats = matchpats apats . paccount
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apats = acctpats filterspec
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filterdepth | interval == NoInterval = filter (\p -> accountNameLevel (paccount p) <= depth)
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| otherwise = id
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depth = fromMaybe 99999 $ depthFromOpts opts
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printDayWith f (DateSpan b _, ts) = printf "%s %s\n" (show $ fromJust b) (f ts)
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countBar ps = replicate (length ps) barchar
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