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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 (fromMaybe, isJust, isNothing)
import Data.Text (Text)
import Data.Time.Calendar (Day, addDays)
import Safe (headMay, lastMay)
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 Day -- If this is a summary posting, the report interval's
-- end date if this is the first summary posting in
-- the interval.
,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.
)
-- | A summary posting summarises the activity in one account within a report
-- interval. It is kludgily represented by a regular Posting with no description,
-- the interval's start date stored as the posting date, and the interval's end
-- date attached with a tuple.
type SummaryPosting = (Posting, Day)
-- | 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{rsOpts=ropts@ReportOpts{..}} j = items
where
reportspan = reportSpanBothDates j rspec
whichdate = whichDateFromOpts ropts
mdepth = queryDepth $ rsQuery rspec
styles = journalCommodityStyles j
priceoracle = journalPriceOracle infer_value_ j
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
-- We may be converting posting amounts to value, per hledger_options.m4.md "Effect of --value on reports".
-- Strip prices from postings if we won't need them.
pvalue periodlast = maybeStripPrices . postingApplyCostValuation priceoracle styles periodlast (rsToday rspec) cost_ value_
where maybeStripPrices = if show_costs_ then id else postingStripPrices
-- Postings, or summary postings with their subperiod's end date, to be displayed.
displayps :: [(Posting, Maybe Day)]
| multiperiod, Just (AtEnd _) <- value_ = [(pvalue lastday p, Just periodend) | (p, periodend) <- summariseps reportps, let lastday = addDays (-1) periodend]
| multiperiod = [(p, Just periodend) | (p, periodend) <- summariseps valuedps]
| otherwise = [(p, Nothing) | p <- valuedps]
where
summariseps = summarisePostingsByInterval interval_ whichdate mdepth showempty reportspan
valuedps = map (pvalue reportorjournallast) reportps
showempty = empty_ || average_
reportorjournallast =
fromMaybe (error' "postingsReport: expected a non-empty journal") $ -- PARTIAL: shouldn't happen
reportPeriodOrJournalLastDay rspec j
-- 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 = balancetype_ == HistoricalBalance
startbal | average_ = if historical then precedingavg else nullmixedamt
| otherwise = if historical then precedingsum else nullmixedamt
where
precedingsum = sumPostings $ map (pvalue daybeforereportstart) precedingps
precedingavg = divideMixedAmount (fromIntegral $ length precedingps) precedingsum
daybeforereportstart =
maybe (error' "postingsReport: expected a non-empty journal") -- PARTIAL: shouldn't happen
(addDays (-1))
$ reportPeriodOrJournalStart rspec j
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 ReportSpec{rsOpts=ropts,rsQuery=q} j (DateSpan mstart mend) =
dbg5 "beforeps, duringps" $ span (beforestartq `matchesPosting`) beforeandduringps
where
beforestartq = dbg3 "beforestartq" $ dateqtype $ DateSpan Nothing mstart
beforeandduringps =
dbg5 "ps5" $ sortOn sortdate $ -- sort postings by date or date2
dbg5 "ps4" $ (if invert_ ropts then map negatePostingAmount else id) $ -- with --invert, invert amounts
dbg5 "ps3" $ map (filterPostingAmount symq) $ -- remove amount parts which the query's cur: terms would exclude
dbg5 "ps2" $ (if related_ ropts then concatMap relatedPostings else id) $ -- with -r, replace each with its sibling postings
dbg5 "ps1" $ filter (beforeandduringq `matchesPosting`) $ -- filter postings by the query, with no start date or depth limit
journalPostings $
journalSelectingAmountFromOpts ropts j -- maybe convert to cost early, will be seen by amt:. XXX what about converting to value ?
where
beforeandduringq = dbg4 "beforeandduringq" $ And [depthless $ dateless q, beforeendq]
where
depthless = filterQuery (not . queryIsDepth)
dateless = filterQuery (not . queryIsDateOrDate2)
beforeendq = dateqtype $ DateSpan Nothing mend
sortdate = if date2_ ropts then postingDate2 else postingDate
symq = dbg4 "symq" $ filterQuery queryIsSym q
dateqtype
| queryIsDate2 dateq || (queryIsDate dateq && date2_ ropts) = Date2
| otherwise = Date
where
dateq = dbg4 "dateq" $ filterQuery queryIsDateOrDate2 $ dbg4 "q" q -- XXX confused by multiple date:/date2: ?
-- | Generate postings report line items from a list of postings or (with
-- non-Nothing dates attached) summary postings.
postingsReportItems :: [(Posting,Maybe Day)] -> (Posting,Maybe Day) -> WhichDate -> Maybe Int -> MixedAmount -> (Int -> MixedAmount -> MixedAmount -> MixedAmount) -> Int -> [PostingsReportItem]
postingsReportItems [] _ _ _ _ _ _ = []
postingsReportItems ((p,menddate):ps) (pprev,menddateprev) wd d b runningcalcfn itemnum =
i:(postingsReportItems ps (p,menddate) wd d b' runningcalcfn (itemnum+1))
where
i = mkpostingsReportItem showdate showdesc wd menddate p' b'
(showdate, showdesc) | isJust menddate = (menddate /= menddateprev, 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 Day -> Posting -> MixedAmount -> PostingsReportItem
mkpostingsReportItem showdate showdesc wd menddate p b =
(if showdate then Just date else Nothing
,menddate
,if showdesc then tdescription <$> ptransaction p else Nothing
,p
,b
)
where
date = case wd of PrimaryDate -> postingDate p
SecondaryDate -> postingDate2 p
-- | 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 :: Interval -> WhichDate -> Maybe Int -> Bool -> DateSpan -> [Posting] -> [SummaryPosting]
summarisePostingsByInterval interval wd mdepth showempty reportspan ps = concatMap summarisespan $ splitSpan interval reportspan
where
summarisespan s = summarisePostingsInDateSpan s wd mdepth showempty (postingsinspan s)
postingsinspan s = filter (isPostingInDateSpan' wd s) ps
-- | 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 (DateSpan b e) wd mdepth showempty ps
| null ps && (isNothing b || isNothing e) = []
| null ps && showempty = [(summaryp, e')]
| otherwise = summarypes
where
postingdate = if wd == PrimaryDate then postingDate else postingDate2
b' = fromMaybe (maybe nulldate postingdate $ headMay ps) b
e' = fromMaybe (maybe (addDays 1 nulldate) postingdate $ lastMay ps) e
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 (, e') $ (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 True (accountNameLevel a >=) mdepth
negatePostingAmount :: Posting -> Posting
negatePostingAmount p = p { pamount = maNegate $ pamount p }
-- tests
tests_PostingsReport = tests "PostingsReport" [
test "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{rsOpts=defreportopts{interval_=Months 1}} samplejournal) @?= 11
(length $ postingsReport defreportspec{rsOpts=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_=maybePeriod 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_=maybePeriod 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_=maybePeriod 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_=maybePeriod 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"
]
-}
,test "summarisePostingsByInterval" $
summarisePostingsByInterval (Quarters 1) 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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