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{-|
Print a histogram report. (The "activity" command).
-}
module Hledger.Cli.Histogram
where
import Data.List
import Data.Maybe
import Data.Ord
import System.Console.CmdArgs.Explicit
import Text.Printf
import Hledger.Cli.Options
import Hledger.Data
import Hledger.Reports
import Hledger.Query
import Prelude hiding (putStr)
import Hledger.Utils.UTF8IOCompat (putStr)
activitymode :: Mode RawOpts
activitymode = (defCommandMode $ ["activity"] ++ aliases) {
modeHelp = "show an ascii barchart of posting counts per interval (default: daily)" `withAliases` aliases
,modeHelpSuffix = []
,modeGroupFlags = Group {
groupUnnamed = []
,groupHidden = []
,groupNamed = [generalflagsgroup1]
}
}
where aliases = []
barchar :: Char
barchar = '*'
-- | Print a histogram of some statistic per reporting interval, such as
-- number of postings per day.
histogram :: CliOpts -> Journal -> IO ()
histogram CliOpts{reportopts_=ropts} j = do
d <- getCurrentDay
putStr $ showHistogram ropts (queryFromOpts d ropts) j
showHistogram :: ReportOpts -> Query -> Journal -> String
showHistogram opts q j = concatMap (printDayWith countBar) spanps
where
i = intervalFromOpts opts
interval | i == NoInterval = Days 1
| otherwise = i
span' = queryDateSpan (date2_ opts) q `spanDefaultsFrom` journalDateSpan (date2_ opts) j
spans = filter (DateSpan Nothing Nothing /=) $ splitSpan interval span'
spanps = [(s, filter (isPostingInDateSpan s) ps) | s <- spans]
-- same as Register
-- should count transactions, not postings ?
-- ps = sortBy (comparing postingDate) $ filterempties $ filter matchapats $ filterdepth $ journalPostings j
ps = sortBy (comparing postingDate) $ filterempties $ filter (q `matchesPosting`) $ journalPostings j
filterempties
| queryEmpty q = id
| otherwise = filter (not . isZeroMixedAmount . pamount)
printDayWith f (DateSpan b _, ps) = printf "%s %s\n" (show $ fromJust b) (f ps)
countBar ps = replicate (length ps) barchar
|
