287 lines
15 KiB
Haskell
287 lines
15 KiB
Haskell
{-# LANGUAGE FlexibleInstances, ScopedTypeVariables, OverloadedStrings #-}
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{-|
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Multi-column balance reports, used by the balance command.
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-}
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module Hledger.Reports.MultiBalanceReports (
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MultiBalanceReport(..),
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MultiBalanceReportRow,
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multiBalanceReport,
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singleBalanceReport,
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-- -- * Tests
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tests_Hledger_Reports_MultiBalanceReport
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)
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where
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import Data.List
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import Data.Maybe
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import Data.Ord
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import Data.Time.Calendar
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import Safe
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import Test.HUnit
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import Hledger.Data
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import Hledger.Query
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import Hledger.Utils
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import Hledger.Read (mamountp')
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import Hledger.Reports.ReportOptions
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import Hledger.Reports.BalanceReport
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-- | A multi balance report is a balance report with one or more columns. It has:
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--
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-- 1. a list of each column's period (date span)
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--
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-- 2. a list of rows, each containing:
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--
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-- * the full account name
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--
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-- * the leaf account name
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--
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-- * the account's depth
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--
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-- * a list of amounts, one for each column
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--
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-- * the total of the row's amounts
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--
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-- * the average of the row's amounts
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--
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-- 3. the column totals and the overall total and average
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--
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-- The meaning of the amounts depends on the type of multi balance
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-- report, of which there are three: periodic, cumulative and historical
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-- (see 'BalanceType' and "Hledger.Cli.Commands.Balance").
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newtype MultiBalanceReport =
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MultiBalanceReport ([DateSpan]
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,[MultiBalanceReportRow]
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,MultiBalanceReportTotals
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)
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type MultiBalanceReportRow = (AccountName, AccountName, Int, [MixedAmount], MixedAmount, MixedAmount)
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type MultiBalanceReportTotals = ([MixedAmount], MixedAmount, MixedAmount) -- (Totals list, sum of totals, average of totals)
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instance Show MultiBalanceReport where
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-- use ppShow to break long lists onto multiple lines
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-- we add some bogus extra shows here to help ppShow parse the output
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-- and wrap tuples and lists properly
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show (MultiBalanceReport (spans, items, totals)) =
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"MultiBalanceReport (ignore extra quotes):\n" ++ ppShow (show spans, map show items, totals)
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-- type alias just to remind us which AccountNames might be depth-clipped, below.
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type ClippedAccountName = AccountName
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-- | Generates a single column BalanceReport like balanceReport, but uses
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-- multiBalanceReport, so supports --historical.
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-- TODO Does not support boring parent eliding or --flat yet.
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singleBalanceReport :: ReportOpts -> Query -> Journal -> BalanceReport
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singleBalanceReport opts q j = (rows', total)
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where
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MultiBalanceReport (_, rows, (totals, _, _)) = multiBalanceReport opts q j
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rows' = [(a
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,if flat_ opts then a else a' -- BalanceReport expects full account name here with --flat
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,if tree_ opts then d-1 else 0 -- BalanceReport uses 0-based account depths
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, headDef nullmixedamt amts -- 0 columns is illegal, should not happen, return zeroes if it does
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) | (a,a',d, amts, _, _) <- rows]
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total = headDef nullmixedamt totals
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-- | Generate a multicolumn balance report for the matched accounts,
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-- showing the change of balance, accumulated balance, or historical balance
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-- in each of the specified periods.
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multiBalanceReport :: ReportOpts -> Query -> Journal -> MultiBalanceReport
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multiBalanceReport opts q j = MultiBalanceReport (displayspans, sorteditems, totalsrow)
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where
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symq = dbg1 "symq" $ filterQuery queryIsSym $ dbg1 "requested q" q
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depthq = dbg1 "depthq" $ filterQuery queryIsDepth q
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depth = queryDepth depthq
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depthless = dbg1 "depthless" . filterQuery (not . queryIsDepth)
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datelessq = dbg1 "datelessq" $ filterQuery (not . queryIsDateOrDate2) q
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dateqcons = if date2_ opts then Date2 else Date
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precedingq = dbg1 "precedingq" $ And [datelessq, dateqcons $ DateSpan Nothing (spanStart reportspan)]
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requestedspan = dbg1 "requestedspan" $ queryDateSpan (date2_ opts) q -- span specified by -b/-e/-p options and query args
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requestedspan' = dbg1 "requestedspan'" $ requestedspan `spanDefaultsFrom` journalDateSpan (date2_ opts) j -- if open-ended, close it using the journal's end dates
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intervalspans = dbg1 "intervalspans" $ splitSpan (interval_ opts) requestedspan' -- interval spans enclosing it
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reportspan = dbg1 "reportspan" $ DateSpan (maybe Nothing spanStart $ headMay intervalspans) -- the requested span enlarged to a whole number of intervals
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(maybe Nothing spanEnd $ lastMay intervalspans)
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newdatesq = dbg1 "newdateq" $ dateqcons reportspan
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reportq = dbg1 "reportq" $ depthless $ And [datelessq, newdatesq] -- user's query enlarged to whole intervals and with no depth limit
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ps :: [Posting] =
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dbg1 "ps" $
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journalPostings $
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filterJournalAmounts symq $ -- remove amount parts excluded by cur:
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filterJournalPostings reportq $ -- remove postings not matched by (adjusted) query
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journalSelectingAmountFromOpts opts j
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displayspans = dbg1 "displayspans" $ splitSpan (interval_ opts) displayspan
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where
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displayspan
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| empty_ opts = dbg1 "displayspan (-E)" reportspan -- all the requested intervals
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| otherwise = dbg1 "displayspan" $ requestedspan `spanIntersect` matchedspan -- exclude leading/trailing empty intervals
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matchedspan = dbg1 "matchedspan" $ postingsDateSpan' (whichDateFromOpts opts) ps
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psPerSpan :: [[Posting]] =
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dbg1 "psPerSpan"
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[filter (isPostingInDateSpan' (whichDateFromOpts opts) s) ps | s <- displayspans]
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postedAcctBalChangesPerSpan :: [[(ClippedAccountName, MixedAmount)]] =
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dbg1 "postedAcctBalChangesPerSpan" $
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map postingAcctBals psPerSpan
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where
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postingAcctBals :: [Posting] -> [(ClippedAccountName, MixedAmount)]
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postingAcctBals ps = [(aname a, (if tree_ opts then aibalance else aebalance) a) | a <- as]
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where
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as = depthLimit $
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(if tree_ opts then id else filter ((>0).anumpostings)) $
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drop 1 $ accountsFromPostings ps
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depthLimit
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| tree_ opts = filter ((depthq `matchesAccount`).aname) -- exclude deeper balances
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| otherwise = clipAccountsAndAggregate depth -- aggregate deeper balances at the depth limit
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postedAccts :: [AccountName] = dbg1 "postedAccts" $ sort $ accountNamesFromPostings ps
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-- starting balances and accounts from transactions before the report start date
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startacctbals = dbg1 "startacctbals" $ map (\(a,_,_,b) -> (a,b)) startbalanceitems
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where
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(startbalanceitems,_) = dbg1 "starting balance report" $ balanceReport opts' precedingq j
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where
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opts' | tree_ opts = opts{no_elide_=True}
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| otherwise = opts{accountlistmode_=ALFlat}
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startingBalanceFor a = fromMaybe nullmixedamt $ lookup a startacctbals
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startAccts = dbg1 "startAccts" $ map fst startacctbals
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displayedAccts :: [ClippedAccountName] =
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dbg1 "displayedAccts" $
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(if tree_ opts then expandAccountNames else id) $
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nub $ map (clipOrEllipsifyAccountName depth) $
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if empty_ opts || (balancetype_ opts) == HistoricalBalance then nub $ sort $ startAccts ++ postedAccts else postedAccts
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acctBalChangesPerSpan :: [[(ClippedAccountName, MixedAmount)]] =
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dbg1 "acctBalChangesPerSpan"
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[sortBy (comparing fst) $ unionBy (\(a,_) (a',_) -> a == a') postedacctbals zeroes
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| postedacctbals <- postedAcctBalChangesPerSpan]
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where zeroes = [(a, nullmixedamt) | a <- displayedAccts]
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acctBalChanges :: [(ClippedAccountName, [MixedAmount])] =
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dbg1 "acctBalChanges"
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[(a, map snd abs) | abs@((a,_):_) <- transpose acctBalChangesPerSpan] -- never null, or used when null...
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items :: [MultiBalanceReportRow] =
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dbg1 "items" $
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[(a, accountLeafName a, accountNameLevel a, displayedBals, rowtot, rowavg)
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| (a,changes) <- acctBalChanges
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, let displayedBals = case balancetype_ opts of
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HistoricalBalance -> drop 1 $ scanl (+) (startingBalanceFor a) changes
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CumulativeChange -> drop 1 $ scanl (+) nullmixedamt changes
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_ -> changes
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, let rowtot = sum displayedBals
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, let rowavg = averageMixedAmounts displayedBals
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, empty_ opts || depth == 0 || any (not . isZeroMixedAmount) displayedBals
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]
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sorteditems :: [MultiBalanceReportRow] =
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dbg1 "sorteditems" $
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maybesort items
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where
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maybesort
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| not $ sort_amount_ opts = id
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| accountlistmode_ opts == ALTree = sortTreeMultiBalanceReportRowsByAmount
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| otherwise = sortFlatMultiBalanceReportRowsByAmount
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where
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-- Sort the report rows, representing a flat account list, by row total.
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sortFlatMultiBalanceReportRowsByAmount = sortBy (maybeflip $ comparing fifth6)
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where
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maybeflip = if normalbalance_ opts == Just NormallyNegative then id else flip
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-- Sort the report rows, representing a tree of accounts, by row total at each level.
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-- To do this we recreate an Account tree with the row totals as balances,
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-- so we can do a hierarchical sort, flatten again, and then reorder the
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-- report rows similarly. Yes this is pretty long winded.
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sortTreeMultiBalanceReportRowsByAmount rows = sortedrows
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where
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anamesandrows = [(first6 r, r) | r <- rows]
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anames = map fst anamesandrows
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atotals = [(a,tot) | (a,_,_,_,tot,_) <- rows]
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nametree = treeFromPaths $ map expandAccountName anames
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accounttree = nameTreeToAccount "root" nametree
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accounttreewithbals = mapAccounts setibalance accounttree
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where
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-- this error should not happen, but it's ugly TODO
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setibalance a = a{aibalance=fromMaybe (error "sortTreeMultiBalanceReportRowsByAmount 1") $ lookup (aname a) atotals}
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sortedaccounttree = sortAccountTreeByAmount (fromMaybe NormallyPositive $ normalbalance_ opts) accounttreewithbals
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sortedaccounts = drop 1 $ flattenAccounts sortedaccounttree
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sortedrows = [
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-- this error should not happen, but it's ugly TODO
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fromMaybe (error "sortTreeMultiBalanceReportRowsByAmount 2") $ lookup (aname a) anamesandrows
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| a <- sortedaccounts
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]
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totals :: [MixedAmount] =
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-- dbg1 "totals" $
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map sum balsbycol
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where
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balsbycol = transpose [bs | (a,_,_,bs,_,_) <- sorteditems, not (tree_ opts) || a `elem` highestlevelaccts]
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highestlevelaccts =
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dbg1 "highestlevelaccts"
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[a | a <- displayedAccts, not $ any (`elem` displayedAccts) $ init $ expandAccountName a]
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totalsrow :: MultiBalanceReportTotals =
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dbg1 "totalsrow"
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(totals, sum totals, averageMixedAmounts totals)
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dbg1 s = let p = "multiBalanceReport" in Hledger.Utils.dbg1 (p++" "++s) -- add prefix in this function's debug output
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-- dbg1 = const id -- exclude this function from debug output
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tests_multiBalanceReport =
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let
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(opts,journal) `gives` r = do
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let (eitems, etotal) = r
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(MultiBalanceReport (_, aitems, atotal)) = multiBalanceReport opts (queryFromOpts nulldate opts) journal
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showw (acct,acct',indent,lAmt,amt,amt') = (acct, acct', indent, map showMixedAmountDebug lAmt, showMixedAmountDebug amt, showMixedAmountDebug amt')
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assertEqual "items" (map showw eitems) (map showw aitems)
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assertEqual "total" (showMixedAmountDebug etotal) ((\(_, b, _) -> showMixedAmountDebug b) atotal) -- we only check the sum of the totals
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usd0 = usd 0
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amount0 = Amount {acommodity="$", aquantity=0, aprice=NoPrice, astyle=AmountStyle {ascommodityside = L, ascommodityspaced = False, asprecision = 2, asdecimalpoint = Just '.', asdigitgroups = Nothing}, amultiplier=False}
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in [
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"multiBalanceReport with no args on null journal" ~: do
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(defreportopts, nulljournal) `gives` ([], Mixed [nullamt])
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,"multiBalanceReport with -H on a populated period" ~: do
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(defreportopts{period_= PeriodBetween (fromGregorian 2008 1 1) (fromGregorian 2008 1 2), balancetype_=HistoricalBalance}, samplejournal) `gives`
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(
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[
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("assets:bank:checking","checking",3, [mamountp' "$1.00"], mamountp' "$1.00",Mixed [amount0 {aquantity=1}])
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,("income:salary","salary",2, [mamountp' "$-1.00"], mamountp' "$-1.00",Mixed [amount0 {aquantity=(-1)}])
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],
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Mixed [usd0])
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,"multiBalanceReport tests the ability to have a valid history on an empty period" ~: do
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(defreportopts{period_= PeriodBetween (fromGregorian 2008 1 2) (fromGregorian 2008 1 3), balancetype_=HistoricalBalance}, samplejournal) `gives`
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(
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[
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("assets:bank:checking","checking",3, [mamountp' "$1.00"], mamountp' "$1.00",Mixed [amount0 {aquantity=1}])
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,("income:salary","salary",2, [mamountp' "$-1.00"], mamountp' "$-1.00",Mixed [amount0 {aquantity=(-1)}])
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],
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Mixed [usd0])
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,"multiBalanceReport tests the ability to have a valid history on an empty period (More complex)" ~: do
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(defreportopts{period_= PeriodBetween (fromGregorian 2009 1 1) (fromGregorian 2009 1 2), balancetype_=HistoricalBalance}, samplejournal) `gives`
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(
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[
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("assets:bank:checking","checking",3, [mamountp' "$1.00"], mamountp' "$1.00",Mixed [amount0 {aquantity=1}])
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,("assets:bank:saving","saving",3, [mamountp' "$1.00"], mamountp' "$1.00",Mixed [amount0 {aquantity=1}])
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,("assets:cash","cash",2, [mamountp' "$-2.00"], mamountp' "$-2.00",Mixed [amount0 {aquantity=(-2)}])
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,("expenses:food","food",2, [mamountp' "$1.00"], mamountp' "$1.00",Mixed [amount0 {aquantity=(1)}])
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,("expenses:supplies","supplies",2, [mamountp' "$1.00"], mamountp' "$1.00",Mixed [amount0 {aquantity=(1)}])
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,("income:gifts","gifts",2, [mamountp' "$-1.00"], mamountp' "$-1.00",Mixed [amount0 {aquantity=(-1)}])
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,("income:salary","salary",2, [mamountp' "$-1.00"], mamountp' "$-1.00",Mixed [amount0 {aquantity=(-1)}])
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],
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Mixed [usd0])
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]
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tests_Hledger_Reports_MultiBalanceReport :: Test
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tests_Hledger_Reports_MultiBalanceReport = TestList
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tests_multiBalanceReport
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