{-# LANGUAGE TemplateHaskell #-}

{-|

Print a bar chart of posting activity per day, or other report interval.

-}

module Hledger.Cli.Commands.Activity
where

import Data.List
import Data.Maybe
import Text.Printf

import Hledger
import Hledger.Cli.CliOptions
import Prelude hiding (putStr)
import Hledger.Utils.UTF8IOCompat (putStr)

activitymode :: Mode RawOpts
activitymode = CommandDoc
-> [Flag RawOpts]
-> [(CommandDoc, [Flag RawOpts])]
-> [Flag RawOpts]
-> ([Arg RawOpts], Maybe (Arg RawOpts))
-> Mode RawOpts
hledgerCommandMode
  $(embedFileRelative "Hledger/Cli/Commands/Activity.txt")
  []
  [(CommandDoc, [Flag RawOpts])
generalflagsgroup1]
  [Flag RawOpts]
hiddenflags
  ([], Arg RawOpts -> Maybe (Arg RawOpts)
forall a. a -> Maybe a
Just (Arg RawOpts -> Maybe (Arg RawOpts))
-> Arg RawOpts -> Maybe (Arg RawOpts)
forall a b. (a -> b) -> a -> b
$ CommandDoc -> Arg RawOpts
argsFlag CommandDoc
"[QUERY]")

barchar :: Char
barchar :: Char
barchar = Char
'*'

-- | Print a bar chart of number of postings per report interval.
activity :: CliOpts -> Journal -> IO ()
activity :: CliOpts -> Journal -> IO ()
activity CliOpts{reportspec_ :: CliOpts -> ReportSpec
reportspec_=ReportSpec
rspec} Journal
j = CommandDoc -> IO ()
putStr (CommandDoc -> IO ()) -> CommandDoc -> IO ()
forall a b. (a -> b) -> a -> b
$ ReportSpec -> Journal -> CommandDoc
showHistogram ReportSpec
rspec Journal
j

showHistogram :: ReportSpec -> Journal -> String
showHistogram :: ReportSpec -> Journal -> CommandDoc
showHistogram ReportSpec{rsQuery :: ReportSpec -> Query
rsQuery=Query
q,rsOpts :: ReportSpec -> ReportOpts
rsOpts=ReportOpts{interval_ :: ReportOpts -> Interval
interval_=Interval
i,date2_ :: ReportOpts -> Bool
date2_=Bool
date2}} Journal
j =
    ((DateSpan, [Posting]) -> CommandDoc)
-> [(DateSpan, [Posting])] -> CommandDoc
forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (([Posting] -> CommandDoc) -> (DateSpan, [Posting]) -> CommandDoc
forall t t t.
(PrintfArg t, PrintfType t) =>
(t -> t) -> (DateSpan, t) -> t
printDayWith [Posting] -> CommandDoc
forall (t :: * -> *) a. Foldable t => t a -> CommandDoc
countBar) [(DateSpan, [Posting])]
spanps
  where
    interval :: Interval
interval | Interval
i Interval -> Interval -> Bool
forall a. Eq a => a -> a -> Bool
== Interval
NoInterval = Int -> Interval
Days Int
1
             | Bool
otherwise = Interval
i
    span' :: DateSpan
span' = Bool -> Query -> DateSpan
queryDateSpan Bool
date2 Query
q DateSpan -> DateSpan -> DateSpan
`spanDefaultsFrom` Bool -> Journal -> DateSpan
journalDateSpan Bool
date2 Journal
j
    spans :: [DateSpan]
spans = (DateSpan -> Bool) -> [DateSpan] -> [DateSpan]
forall a. (a -> Bool) -> [a] -> [a]
filter (Maybe Day -> Maybe Day -> DateSpan
DateSpan Maybe Day
forall a. Maybe a
Nothing Maybe Day
forall a. Maybe a
Nothing DateSpan -> DateSpan -> Bool
forall a. Eq a => a -> a -> Bool
/=) ([DateSpan] -> [DateSpan]) -> [DateSpan] -> [DateSpan]
forall a b. (a -> b) -> a -> b
$ Interval -> DateSpan -> [DateSpan]
splitSpan Interval
interval DateSpan
span'
    spanps :: [(DateSpan, [Posting])]
spanps = [(DateSpan
s, (Posting -> Bool) -> [Posting] -> [Posting]
forall a. (a -> Bool) -> [a] -> [a]
filter (DateSpan -> Posting -> Bool
isPostingInDateSpan DateSpan
s) [Posting]
ps) | DateSpan
s <- [DateSpan]
spans]
    -- same as Register
    -- should count transactions, not postings ?
    -- ps = sortBy (comparing postingDate) $ filterempties $ filter matchapats $ filterdepth $ journalPostings j
    ps :: [Posting]
ps = (Posting -> Day) -> [Posting] -> [Posting]
forall b a. Ord b => (a -> b) -> [a] -> [a]
sortOn Posting -> Day
postingDate ([Posting] -> [Posting]) -> [Posting] -> [Posting]
forall a b. (a -> b) -> a -> b
$ (Posting -> Bool) -> [Posting] -> [Posting]
forall a. (a -> Bool) -> [a] -> [a]
filter (Query
q Query -> Posting -> Bool
`matchesPosting`) ([Posting] -> [Posting]) -> [Posting] -> [Posting]
forall a b. (a -> b) -> a -> b
$ Journal -> [Posting]
journalPostings Journal
j

printDayWith :: (t -> t) -> (DateSpan, t) -> t
printDayWith t -> t
f (DateSpan Maybe Day
b Maybe Day
_, t
ps) = CommandDoc -> CommandDoc -> t -> t
forall r. PrintfType r => CommandDoc -> r
printf CommandDoc
"%s %s\n" (Day -> CommandDoc
forall a. Show a => a -> CommandDoc
show (Day -> CommandDoc) -> Day -> CommandDoc
forall a b. (a -> b) -> a -> b
$ Maybe Day -> Day
forall a. HasCallStack => Maybe a -> a
fromJust Maybe Day
b) (t -> t
f t
ps)

countBar :: t a -> CommandDoc
countBar t a
ps = Int -> Char -> CommandDoc
forall a. Int -> a -> [a]
replicate (t a -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length t a
ps) Char
barchar