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hledger/hledger-lib/Hledger/Reports/PostingsReport.hs

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{-|
Postings report, used by the register command.
-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections #-}
module Hledger.Reports.PostingsReport (
PostingsReport,
PostingsReportItem,
postingsReport,
mkpostingsReportItem,
-- * Tests
tests_PostingsReport
)
where
import Data.List (nub, sortOn)
import Data.List.Extra (nubSort)
import Data.Maybe (isJust, isNothing)
import Data.Text (Text)
import Data.Time.Calendar (Day)
import Safe (headMay)
import Hledger.Data
import Hledger.Query
import Hledger.Utils
import Hledger.Reports.ReportOptions
-- | A postings report is a list of postings with a running total, and a little extra
-- transaction info to help with rendering.
-- This is used eg for the register command.
type PostingsReport = [PostingsReportItem] -- line items, one per posting
type PostingsReportItem = (Maybe Day -- The posting date, if this is the first posting in a
-- transaction or if it's different from the previous
-- posting's date. Or if this a summary posting, the
-- report interval's start date if this is the first
-- summary posting in the interval.
,Maybe Period -- If this is a summary posting, the report interval's period.
,Maybe Text -- The posting's transaction's description, if this is the first posting in the transaction.
,Posting -- The posting, possibly with the account name depth-clipped.
,MixedAmount -- The running total after this posting, or with --average,
-- the running average posting amount. With --historical,
-- postings before the report start date are included in
-- the running total/average.
)
instance HasAmounts PostingsReportItem where
styleAmounts styles (a,b,c,d,e) = (a,b,c,styleAmounts styles d,styleAmounts styles e)
-- | A summary posting summarises the activity in one account within a report
-- interval. It is by a regular Posting with no description, the interval's
-- start date stored as the posting date, and the interval's Period attached
-- with a tuple.
type SummaryPosting = (Posting, Period)
-- | Select postings from the journal and add running balance and other
-- information to make a postings report. Used by eg hledger's register command.
postingsReport :: ReportSpec -> Journal -> PostingsReport
postingsReport rspec@ReportSpec{_rsReportOpts=ropts@ReportOpts{..}} j = items
where
(reportspan, colspans) = reportSpanBothDates j rspec
whichdate = whichDate ropts
mdepth = queryDepth $ _rsQuery rspec
multiperiod = interval_ /= NoInterval
-- postings to be included in the report, and similarly-matched postings before the report start date
(precedingps, reportps) = matchedPostingsBeforeAndDuring rspec j reportspan
-- Postings, or summary postings with their subperiod's end date, to be displayed.
displayps :: [(Posting, Maybe Period)]
| multiperiod = [(p', Just period') | (p', period') <- summariseps reportps]
| otherwise = [(p', Nothing) | p' <- reportps]
where
summariseps = summarisePostingsByInterval whichdate mdepth showempty colspans
showempty = empty_ || average_
-- Posting report items ready for display.
items =
dbg4 "postingsReport items" $
postingsReportItems displayps (nullposting,Nothing) whichdate mdepth startbal runningcalc startnum
where
-- In historical mode we'll need a starting balance, which we
-- may be converting to value per hledger_options.m4.md "Effect
-- of --value on reports".
-- XXX balance report doesn't value starting balance.. should this ?
historical = balanceaccum_ == Historical
startbal | average_ = if historical then precedingavg else nullmixedamt
| otherwise = if historical then precedingsum else nullmixedamt
where
precedingsum = sumPostings precedingps
precedingavg = divideMixedAmount (fromIntegral $ length precedingps) precedingsum
runningcalc = registerRunningCalculationFn ropts
startnum = if historical then length precedingps + 1 else 1
-- | Based on the given report options, return a function that does the appropriate
-- running calculation for the register report, ie a running average or running total.
-- This function will take the item number, previous average/total, and new posting amount,
-- and return the new average/total.
registerRunningCalculationFn :: ReportOpts -> (Int -> MixedAmount -> MixedAmount -> MixedAmount)
registerRunningCalculationFn ropts
| average_ ropts = \i avg amt -> avg `maPlus` divideMixedAmount (fromIntegral i) (amt `maMinus` avg)
| otherwise = \_ bal amt -> bal `maPlus` amt
-- | Find postings matching a given query, within a given date span,
-- and also any similarly-matched postings before that date span.
-- Date restrictions and depth restrictions in the query are ignored.
-- A helper for the postings report.
matchedPostingsBeforeAndDuring :: ReportSpec -> Journal -> DateSpan -> ([Posting],[Posting])
matchedPostingsBeforeAndDuring rspec@ReportSpec{_rsReportOpts=ropts,_rsQuery=q} j reportspan =
dbg5 "beforeps, duringps" $ span (beforestartq `matchesPosting`) beforeandduringps
where
beforestartq = dbg3 "beforestartq" $ dateqtype $ DateSpan Nothing (Exact <$> spanStart reportspan)
beforeandduringps =
sortOn (postingDateOrDate2 (whichDate ropts)) -- sort postings by date or date2
. (if invert_ ropts then map negatePostingAmount else id) -- with --invert, invert amounts
. journalPostings
-- With most calls we will not require transaction prices past this point, and can get a big
-- speed improvement by stripping them early. In some cases, such as in hledger-ui, we still
-- want to keep prices around, so we can toggle between cost and no cost quickly. We can use
-- the show_costs_ flag to be efficient when we can, and detailed when we have to.
. (if show_costs_ ropts then id else journalMapPostingAmounts mixedAmountStripCosts)
$ journalValueAndFilterPostings rspec{_rsQuery=beforeandduringq} j
-- filter postings by the query, with no start date or depth limit
beforeandduringq = dbg4 "beforeandduringq" $ And [depthless $ dateless q, beforeendq]
where
depthless = filterQuery (not . queryIsDepth)
dateless = filterQuery (not . queryIsDateOrDate2)
beforeendq = dateqtype $ DateSpan Nothing (Exact <$> spanEnd reportspan)
dateqtype = if queryIsDate2 dateq || (queryIsDate dateq && date2_ ropts) then Date2 else Date
where
dateq = dbg4 "matchedPostingsBeforeAndDuring dateq" $ filterQuery queryIsDateOrDate2 $ dbg4 "matchedPostingsBeforeAndDuring q" q -- XXX confused by multiple date:/date2: ?
-- | Generate postings report line items from a list of postings or (with
-- non-Nothing periods attached) summary postings.
postingsReportItems :: [(Posting,Maybe Period)] -> (Posting,Maybe Period) -> WhichDate -> Maybe Int -> MixedAmount -> (Int -> MixedAmount -> MixedAmount -> MixedAmount) -> Int -> [PostingsReportItem]
postingsReportItems [] _ _ _ _ _ _ = []
postingsReportItems ((p,mperiod):ps) (pprev,mperiodprev) wd d b runningcalcfn itemnum =
i:(postingsReportItems ps (p,mperiod) wd d b' runningcalcfn (itemnum+1))
where
i = mkpostingsReportItem showdate showdesc wd mperiod p' b'
(showdate, showdesc) | isJust mperiod = (mperiod /= mperiodprev, False)
| otherwise = (isfirstintxn || isdifferentdate, isfirstintxn)
isfirstintxn = ptransaction p /= ptransaction pprev
isdifferentdate = case wd of PrimaryDate -> postingDate p /= postingDate pprev
SecondaryDate -> postingDate2 p /= postingDate2 pprev
p' = p{paccount= clipOrEllipsifyAccountName d $ paccount p}
b' = runningcalcfn itemnum b $ pamount p
-- | Generate one postings report line item, containing the posting,
-- the current running balance, and optionally the posting date and/or
-- the transaction description.
mkpostingsReportItem :: Bool -> Bool -> WhichDate -> Maybe Period -> Posting -> MixedAmount -> PostingsReportItem
mkpostingsReportItem showdate showdesc wd mperiod p b =
(if showdate then Just $ postingDateOrDate2 wd p else Nothing
,mperiod
,if showdesc then tdescription <$> ptransaction p else Nothing
,p
,b
)
-- | Convert a list of postings into summary postings, one per interval,
-- aggregated to the specified depth if any.
-- Each summary posting will have a non-Nothing interval end date.
summarisePostingsByInterval :: WhichDate -> Maybe Int -> Bool -> [DateSpan] -> [Posting] -> [SummaryPosting]
summarisePostingsByInterval wd mdepth showempty colspans =
concatMap (\(s,ps) -> summarisePostingsInDateSpan s wd mdepth showempty ps)
-- Group postings into their columns. We try to be efficient, since
-- there can possibly be a very large number of intervals (cf #1683)
. groupByDateSpan showempty (postingDateOrDate2 wd) colspans
-- | Given a date span (representing a report interval) and a list of
-- postings within it, aggregate the postings into one summary posting per
-- account. Each summary posting will have a non-Nothing interval end date.
--
-- When a depth argument is present, postings to accounts of greater
-- depth are also aggregated where possible. If the depth is 0, all
-- postings in the span are aggregated into a single posting with
-- account name "...".
--
-- The showempty flag includes spans with no postings and also postings
-- with 0 amount.
--
summarisePostingsInDateSpan :: DateSpan -> WhichDate -> Maybe Int -> Bool -> [Posting] -> [SummaryPosting]
summarisePostingsInDateSpan spn@(DateSpan b e) wd mdepth showempty ps
| null ps && (isNothing b || isNothing e) = []
| null ps && showempty = [(summaryp, dateSpanAsPeriod spn)]
| otherwise = summarypes
where
postingdate = if wd == PrimaryDate then postingDate else postingDate2
b' = maybe (maybe nulldate postingdate $ headMay ps) fromEFDay b
summaryp = nullposting{pdate=Just b'}
clippedanames = nub $ map (clipAccountName mdepth) anames
summaryps | mdepth == Just 0 = [summaryp{paccount="...",pamount=sumPostings ps}]
| otherwise = [summaryp{paccount=a,pamount=balance a} | a <- clippedanames]
summarypes = map (, dateSpanAsPeriod spn) $ (if showempty then id else filter (not . mixedAmountLooksZero . pamount)) summaryps
anames = nubSort $ map paccount ps
-- aggregate balances by account, like ledgerFromJournal, then do depth-clipping
accts = accountsFromPostings ps
balance a = maybe nullmixedamt bal $ lookupAccount a accts
where
bal = if isclipped a then aibalance else aebalance
isclipped a' = maybe False (accountNameLevel a' >=) mdepth
negatePostingAmount :: Posting -> Posting
negatePostingAmount = postingTransformAmount negate
-- tests
tests_PostingsReport = testGroup "PostingsReport" [
testCase "postingsReport" $ do
let (query, journal) `gives` n = (length $ postingsReport defreportspec{_rsQuery=query} journal) @?= n
-- with the query specified explicitly
(Any, nulljournal) `gives` 0
(Any, samplejournal) `gives` 13
-- register --depth just clips account names
(Depth 2, samplejournal) `gives` 13
(And [Depth 1, StatusQ Cleared, Acct (toRegex' "expenses")], samplejournal) `gives` 2
(And [And [Depth 1, StatusQ Cleared], Acct (toRegex' "expenses")], samplejournal) `gives` 2
-- with query and/or command-line options
(length $ postingsReport defreportspec samplejournal) @?= 13
(length $ postingsReport defreportspec{_rsReportOpts=defreportopts{interval_=Months 1}} samplejournal) @?= 11
(length $ postingsReport defreportspec{_rsReportOpts=defreportopts{interval_=Months 1, empty_=True}} samplejournal) @?= 20
(length $ postingsReport defreportspec{_rsQuery=Acct $ toRegex' "assets:bank:checking"} samplejournal) @?= 5
-- (defreportopts, And [Acct "a a", Acct "'b"], samplejournal2) `gives` 0
-- [(Just (fromGregorian 2008 01 01,"income"),assets:bank:checking $1,$1)
-- ,(Nothing,income:salary $-1,0)
-- ,(Just (2008-06-01,"gift"),assets:bank:checking $1,$1)
-- ,(Nothing,income:gifts $-1,0)
-- ,(Just (2008-06-02,"save"),assets:bank:saving $1,$1)
-- ,(Nothing,assets:bank:checking $-1,0)
-- ,(Just (2008-06-03,"eat & shop"),expenses:food $1,$1)
-- ,(Nothing,expenses:supplies $1,$2)
-- ,(Nothing,assets:cash $-2,0)
-- ,(Just (2008-12-31,"pay off"),liabilities:debts $1,$1)
-- ,(Nothing,assets:bank:checking $-1,0)
{-
let opts = defreportopts
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/01/01 income assets:bank:checking $1 $1"
," income:salary $-1 0"
,"2008/06/01 gift assets:bank:checking $1 $1"
," income:gifts $-1 0"
,"2008/06/02 save assets:bank:saving $1 $1"
," assets:bank:checking $-1 0"
,"2008/06/03 eat & shop expenses:food $1 $1"
," expenses:supplies $1 $2"
," assets:cash $-2 0"
,"2008/12/31 pay off liabilities:debts $1 $1"
," assets:bank:checking $-1 0"
]
,"postings report with cleared option" ~:
do
let opts = defreportopts{cleared_=True}
j <- readJournal' sample_journal_str
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/06/03 eat & shop expenses:food $1 $1"
," expenses:supplies $1 $2"
," assets:cash $-2 0"
,"2008/12/31 pay off liabilities:debts $1 $1"
," assets:bank:checking $-1 0"
]
,"postings report with uncleared option" ~:
do
let opts = defreportopts{uncleared_=True}
j <- readJournal' sample_journal_str
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/01/01 income assets:bank:checking $1 $1"
," income:salary $-1 0"
,"2008/06/01 gift assets:bank:checking $1 $1"
," income:gifts $-1 0"
,"2008/06/02 save assets:bank:saving $1 $1"
," assets:bank:checking $-1 0"
]
,"postings report sorts by date" ~:
do
j <- readJournal' $ unlines
["2008/02/02 a"
," b 1"
," c"
,""
,"2008/01/01 d"
," e 1"
," f"
]
let opts = defreportopts
registerdates (postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` ["2008/01/01","2008/02/02"]
,"postings report with account pattern" ~:
do
j <- samplejournal
let opts = defreportopts{patterns_=["cash"]}
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/06/03 eat & shop assets:cash $-2 $-2"
]
,"postings report with account pattern, case insensitive" ~:
do
j <- samplejournal
let opts = defreportopts{patterns_=["cAsH"]}
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/06/03 eat & shop assets:cash $-2 $-2"
]
,"postings report with display expression" ~:
do
j <- samplejournal
let gives displayexpr =
(registerdates (postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is`)
where opts = defreportopts
"d<[2008/6/2]" `gives` ["2008/01/01","2008/06/01"]
"d<=[2008/6/2]" `gives` ["2008/01/01","2008/06/01","2008/06/02"]
"d=[2008/6/2]" `gives` ["2008/06/02"]
"d>=[2008/6/2]" `gives` ["2008/06/02","2008/06/03","2008/12/31"]
"d>[2008/6/2]" `gives` ["2008/06/03","2008/12/31"]
,"postings report with period expression" ~:
do
j <- samplejournal
let periodexpr `gives` dates = do
j' <- samplejournal
registerdates (postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j') `is` dates
where opts = defreportopts{period_=Just $ parsePeriodExpr' date1 periodexpr}
"" `gives` ["2008/01/01","2008/06/01","2008/06/02","2008/06/03","2008/12/31"]
"2008" `gives` ["2008/01/01","2008/06/01","2008/06/02","2008/06/03","2008/12/31"]
"2007" `gives` []
"june" `gives` ["2008/06/01","2008/06/02","2008/06/03"]
"monthly" `gives` ["2008/01/01","2008/06/01","2008/12/01"]
"quarterly" `gives` ["2008/01/01","2008/04/01","2008/10/01"]
let opts = defreportopts{period_=Just $ parsePeriodExpr' date1 "yearly"}
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/01/01 - 2008/12/31 assets:bank:saving $1 $1"
," assets:cash $-2 $-1"
," expenses:food $1 0"
," expenses:supplies $1 $1"
," income:gifts $-1 0"
," income:salary $-1 $-1"
," liabilities:debts $1 0"
]
let opts = defreportopts{period_=Just $ parsePeriodExpr' date1 "quarterly"}
registerdates (postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` ["2008/01/01","2008/04/01","2008/10/01"]
let opts = defreportopts{period_=Just $ parsePeriodExpr' date1 "quarterly",empty_=True}
registerdates (postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` ["2008/01/01","2008/04/01","2008/07/01","2008/10/01"]
]
, "postings report with depth arg" ~:
do
j <- samplejournal
let opts = defreportopts{depth_=Just 2}
(postingsReportAsText opts $ postingsReport opts (queryFromOpts date1 opts) j) `is` unlines
["2008/01/01 income assets:bank $1 $1"
," income:salary $-1 0"
,"2008/06/01 gift assets:bank $1 $1"
," income:gifts $-1 0"
,"2008/06/02 save assets:bank $1 $1"
," assets:bank $-1 0"
,"2008/06/03 eat & shop expenses:food $1 $1"
," expenses:supplies $1 $2"
," assets:cash $-2 0"
,"2008/12/31 pay off liabilities:debts $1 $1"
," assets:bank $-1 0"
]
-}
,testCase "summarisePostingsByInterval" $
summarisePostingsByInterval PrimaryDate Nothing False [DateSpan Nothing Nothing] [] @?= []
-- ,tests_summarisePostingsInDateSpan = [
-- "summarisePostingsInDateSpan" ~: do
-- let gives (b,e,depth,showempty,ps) =
-- (summarisePostingsInDateSpan (DateSpan b e) depth showempty ps `is`)
-- let ps =
-- [
-- nullposting{lpdescription="desc",lpaccount="expenses:food:groceries",lpamount=mixedAmount (usd 1)}
-- ,nullposting{lpdescription="desc",lpaccount="expenses:food:dining", lpamount=mixedAmount (usd 2)}
-- ,nullposting{lpdescription="desc",lpaccount="expenses:food", lpamount=mixedAmount (usd 4)}
-- ,nullposting{lpdescription="desc",lpaccount="expenses:food:dining", lpamount=mixedAmount (usd 8)}
-- ]
-- ("2008/01/01","2009/01/01",0,9999,False,[]) `gives`
-- []
-- ("2008/01/01","2009/01/01",0,9999,True,[]) `gives`
-- [
-- nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31"}
-- ]
-- ("2008/01/01","2009/01/01",0,9999,False,ts) `gives`
-- [
-- nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31",lpaccount="expenses:food", lpamount=mixedAmount (usd 4)}
-- ,nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31",lpaccount="expenses:food:dining", lpamount=mixedAmount (usd 10)}
-- ,nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31",lpaccount="expenses:food:groceries",lpamount=mixedAmount (usd 1)}
-- ]
-- ("2008/01/01","2009/01/01",0,2,False,ts) `gives`
-- [
-- nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31",lpaccount="expenses:food",lpamount=mixedAmount (usd 15)}
-- ]
-- ("2008/01/01","2009/01/01",0,1,False,ts) `gives`
-- [
-- nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31",lpaccount="expenses",lpamount=mixedAmount (usd 15)}
-- ]
-- ("2008/01/01","2009/01/01",0,0,False,ts) `gives`
-- [
-- nullposting{lpdate=fromGregorian 2008 01 01,lpdescription="- 2008/12/31",lpaccount="",lpamount=mixedAmount (usd 15)}
-- ]
]
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