hledger/hledger-lib/Hledger/Data/Journal.hs
Simon Michael 3d4f5600ae journal: infer and balance amounts with standard amount styles (fix #737)
Inferred amounts now have the appropriate standard amount style applied.
And when checking for balanced transactions, amount styles declared with
commodity directives are also used (previously only inferred amount styles were).
2018-04-20 13:40:05 -07:00

1090 lines
46 KiB
Haskell

{-# LANGUAGE Rank2Types #-}
{-# LANGUAGE StandaloneDeriving, OverloadedStrings #-}
{-# LANGUAGE CPP #-}
{-|
A 'Journal' is a set of transactions, plus optional related data. This is
hledger's primary data object. It is usually parsed from a journal file or
other data format (see "Hledger.Read").
-}
module Hledger.Data.Journal (
-- * Parsing helpers
addMarketPrice,
addModifierTransaction,
addPeriodicTransaction,
addTransaction,
journalBalanceTransactions,
journalApplyCommodityStyles,
commodityStylesFromAmounts,
journalCommodityStyles,
journalConvertAmountsToCost,
journalFinalise,
journalPivot,
-- * Filtering
filterJournalTransactions,
filterJournalPostings,
filterJournalAmounts,
filterTransactionAmounts,
filterTransactionPostings,
filterPostingAmount,
-- * Querying
journalAccountNamesUsed,
journalAccountNamesImplied,
journalAccountNamesDeclared,
journalAccountNamesDeclaredOrUsed,
journalAccountNamesDeclaredOrImplied,
journalAccountNames,
-- journalAmountAndPriceCommodities,
journalAmounts,
overJournalAmounts,
traverseJournalAmounts,
-- journalCanonicalCommodities,
journalDateSpan,
journalDescriptions,
journalFilePath,
journalFilePaths,
journalTransactionAt,
journalNextTransaction,
journalPrevTransaction,
journalPostings,
-- * Standard account types
journalBalanceSheetAccountQuery,
journalProfitAndLossAccountQuery,
journalIncomeAccountQuery,
journalExpenseAccountQuery,
journalAssetAccountQuery,
journalLiabilityAccountQuery,
journalEquityAccountQuery,
journalCashAccountQuery,
-- * Misc
canonicalStyleFrom,
matchpats,
nulljournal,
journalCheckBalanceAssertions,
journalNumberAndTieTransactions,
journalUntieTransactions,
-- * Tests
samplejournal,
tests_Hledger_Data_Journal,
)
where
import Control.Applicative (Const(..))
import Control.Arrow
import Control.Monad
import Control.Monad.Except
import qualified Control.Monad.Reader as R
import Control.Monad.ST
import Data.Array.ST
import Data.Functor.Identity (Identity(..))
import qualified Data.HashTable.ST.Cuckoo as HT
import Data.List
import Data.List.Extra (groupSort)
-- import Data.Map (findWithDefault)
import Data.Maybe
#if !(MIN_VERSION_base(4,11,0))
import Data.Monoid
#endif
import Data.Ord
import qualified Data.Semigroup as Sem
import Data.Text (Text)
import qualified Data.Text as T
import Safe (headMay, headDef)
import Data.Time.Calendar
import Data.Tree
import System.Time (ClockTime(TOD))
import Test.HUnit
import Text.Printf
import qualified Data.Map as M
import Hledger.Utils
import Hledger.Data.Types
import Hledger.Data.AccountName
import Hledger.Data.Amount
-- import Hledger.Data.Commodity
import Hledger.Data.Dates
import Hledger.Data.Transaction
import Hledger.Data.Posting
import Hledger.Query
-- try to make Journal ppShow-compatible
-- instance Show ClockTime where
-- show t = "<ClockTime>"
-- deriving instance Show Journal
instance Show Journal where
show j
| debugLevel < 3 = printf "Journal %s with %d transactions, %d accounts"
(journalFilePath j)
(length $ jtxns j)
(length accounts)
| debugLevel < 6 = printf "Journal %s with %d transactions, %d accounts: %s"
(journalFilePath j)
(length $ jtxns j)
(length accounts)
(show accounts)
| otherwise = printf "Journal %s with %d transactions, %d accounts: %s, commodity styles: %s"
(journalFilePath j)
(length $ jtxns j)
(length accounts)
(show accounts)
(show $ jinferredcommodities j)
-- ++ (show $ journalTransactions l)
where accounts = filter (/= "root") $ flatten $ journalAccountNameTree j
-- showJournalDebug j = unlines [
-- show j
-- ,show (jtxns j)
-- ,show (jmodifiertxns j)
-- ,show (jperiodictxns j)
-- ,show $ jparsetimeclockentries j
-- ,show $ jmarketprices j
-- ,show $ jfinalcommentlines j
-- ,show $ jparsestate j
-- ,show $ map fst $ jfiles j
-- ]
-- The monoid instance for Journal is useful for two situations.
--
-- 1. concatenating finalised journals, eg with multiple -f options:
-- FIRST <> SECOND. The second's list fields are appended to the
-- first's, map fields are combined, transaction counts are summed,
-- the parse state of the second is kept.
--
-- 2. merging a child parsed journal, eg with the include directive:
-- CHILD <> PARENT. A parsed journal's data is in reverse order, so
-- this gives what we want.
--
instance Sem.Semigroup Journal where
j1 <> j2 = Journal {
jparsedefaultyear = jparsedefaultyear j2
,jparsedefaultcommodity = jparsedefaultcommodity j2
,jparseparentaccounts = jparseparentaccounts j2
,jparsealiases = jparsealiases j2
-- ,jparsetransactioncount = jparsetransactioncount j1 + jparsetransactioncount j2
,jparsetimeclockentries = jparsetimeclockentries j1 <> jparsetimeclockentries j2
,jaccounts = jaccounts j1 <> jaccounts j2
,jcommodities = jcommodities j1 <> jcommodities j2
,jinferredcommodities = jinferredcommodities j1 <> jinferredcommodities j2
,jmarketprices = jmarketprices j1 <> jmarketprices j2
,jmodifiertxns = jmodifiertxns j1 <> jmodifiertxns j2
,jperiodictxns = jperiodictxns j1 <> jperiodictxns j2
,jtxns = jtxns j1 <> jtxns j2
,jfinalcommentlines = jfinalcommentlines j2
,jfiles = jfiles j1 <> jfiles j2
,jlastreadtime = max (jlastreadtime j1) (jlastreadtime j2)
}
instance Monoid Journal where
mempty = nulljournal
#if !(MIN_VERSION_base(4,11,0))
-- This is redundant starting with base-4.11 / GHC 8.4.
mappend = (Sem.<>)
#endif
nulljournal :: Journal
nulljournal = Journal {
jparsedefaultyear = Nothing
,jparsedefaultcommodity = Nothing
,jparseparentaccounts = []
,jparsealiases = []
-- ,jparsetransactioncount = 0
,jparsetimeclockentries = []
,jaccounts = []
,jcommodities = M.fromList []
,jinferredcommodities = M.fromList []
,jmarketprices = []
,jmodifiertxns = []
,jperiodictxns = []
,jtxns = []
,jfinalcommentlines = ""
,jfiles = []
,jlastreadtime = TOD 0 0
}
journalFilePath :: Journal -> FilePath
journalFilePath = fst . mainfile
journalFilePaths :: Journal -> [FilePath]
journalFilePaths = map fst . jfiles
mainfile :: Journal -> (FilePath, Text)
mainfile = headDef ("", "") . jfiles
addTransaction :: Transaction -> Journal -> Journal
addTransaction t j = j { jtxns = t : jtxns j }
addModifierTransaction :: ModifierTransaction -> Journal -> Journal
addModifierTransaction mt j = j { jmodifiertxns = mt : jmodifiertxns j }
addPeriodicTransaction :: PeriodicTransaction -> Journal -> Journal
addPeriodicTransaction pt j = j { jperiodictxns = pt : jperiodictxns j }
addMarketPrice :: MarketPrice -> Journal -> Journal
addMarketPrice h j = j { jmarketprices = h : jmarketprices j }
-- | Get the transaction with this index (its 1-based position in the input stream), if any.
journalTransactionAt :: Journal -> Integer -> Maybe Transaction
journalTransactionAt Journal{jtxns=ts} i =
-- it's probably ts !! (i+1), but we won't assume
headMay [t | t <- ts, tindex t == i]
-- | Get the transaction that appeared immediately after this one in the input stream, if any.
journalNextTransaction :: Journal -> Transaction -> Maybe Transaction
journalNextTransaction j t = journalTransactionAt j (tindex t + 1)
-- | Get the transaction that appeared immediately before this one in the input stream, if any.
journalPrevTransaction :: Journal -> Transaction -> Maybe Transaction
journalPrevTransaction j t = journalTransactionAt j (tindex t - 1)
-- | Unique transaction descriptions used in this journal.
journalDescriptions :: Journal -> [Text]
journalDescriptions = nub . sort . map tdescription . jtxns
-- | All postings from this journal's transactions, in order.
journalPostings :: Journal -> [Posting]
journalPostings = concatMap tpostings . jtxns
-- | Sorted unique account names posted to by this journal's transactions.
journalAccountNamesUsed :: Journal -> [AccountName]
journalAccountNamesUsed = accountNamesFromPostings . journalPostings
-- | Sorted unique account names implied by this journal's transactions -
-- accounts posted to and all their implied parent accounts.
journalAccountNamesImplied :: Journal -> [AccountName]
journalAccountNamesImplied = expandAccountNames . journalAccountNamesUsed
-- | Sorted unique account names declared by account directives in this journal.
journalAccountNamesDeclared :: Journal -> [AccountName]
journalAccountNamesDeclared = nub . sort . map fst . jaccounts
-- | Sorted unique account names declared by account directives or posted to
-- by transactions in this journal.
journalAccountNamesDeclaredOrUsed :: Journal -> [AccountName]
journalAccountNamesDeclaredOrUsed j = nub $ sort $ journalAccountNamesDeclared j ++ journalAccountNamesUsed j
-- | Sorted unique account names declared by account directives, or posted to
-- or implied as parents by transactions in this journal.
journalAccountNamesDeclaredOrImplied :: Journal -> [AccountName]
journalAccountNamesDeclaredOrImplied j = nub $ sort $ journalAccountNamesDeclared j ++ journalAccountNamesImplied j
-- | Convenience/compatibility alias for journalAccountNamesDeclaredOrImplied.
journalAccountNames :: Journal -> [AccountName]
journalAccountNames = journalAccountNamesDeclaredOrImplied
journalAccountNameTree :: Journal -> Tree AccountName
journalAccountNameTree = accountNameTreeFrom . journalAccountNames
-- standard account types
-- | A query for Profit & Loss accounts in this journal.
-- Cf <http://en.wikipedia.org/wiki/Chart_of_accounts#Profit_.26_Loss_accounts>.
journalProfitAndLossAccountQuery :: Journal -> Query
journalProfitAndLossAccountQuery j = Or [journalIncomeAccountQuery j
,journalExpenseAccountQuery j
]
-- | A query for Income (Revenue) accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^(income|revenue)s?(:|$)@.
journalIncomeAccountQuery :: Journal -> Query
journalIncomeAccountQuery _ = Acct "^(income|revenue)s?(:|$)"
-- | A query for Expense accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^expenses?(:|$)@.
journalExpenseAccountQuery :: Journal -> Query
journalExpenseAccountQuery _ = Acct "^expenses?(:|$)"
-- | A query for Asset, Liability & Equity accounts in this journal.
-- Cf <http://en.wikipedia.org/wiki/Chart_of_accounts#Balance_Sheet_Accounts>.
journalBalanceSheetAccountQuery :: Journal -> Query
journalBalanceSheetAccountQuery j = Or [journalAssetAccountQuery j
,journalLiabilityAccountQuery j
,journalEquityAccountQuery j
]
-- | A query for Asset accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^assets?(:|$)@.
journalAssetAccountQuery :: Journal -> Query
journalAssetAccountQuery _ = Acct "^assets?(:|$)"
-- | A query for Liability accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^(debts?|liabilit(y|ies))(:|$)@.
journalLiabilityAccountQuery :: Journal -> Query
journalLiabilityAccountQuery _ = Acct "^(debts?|liabilit(y|ies))(:|$)"
-- | A query for Equity accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^equity(:|$)@.
journalEquityAccountQuery :: Journal -> Query
journalEquityAccountQuery _ = Acct "^equity(:|$)"
-- | A query for Cash (-equivalent) accounts in this journal (ie,
-- accounts which appear on the cashflow statement.) This is currently
-- hard-coded to be all the Asset accounts except for those containing the
-- case-insensitive regex @(receivable|:A/R|:fixed)@.
journalCashAccountQuery :: Journal -> Query
journalCashAccountQuery j = And [journalAssetAccountQuery j, Not $ Acct "(receivable|:A/R|:fixed)"]
-- Various kinds of filtering on journals. We do it differently depending
-- on the command.
-------------------------------------------------------------------------------
-- filtering V2
-- | Keep only transactions matching the query expression.
filterJournalTransactions :: Query -> Journal -> Journal
filterJournalTransactions q j@Journal{jtxns=ts} = j{jtxns=filter (q `matchesTransaction`) ts}
-- | Keep only postings matching the query expression.
-- This can leave unbalanced transactions.
filterJournalPostings :: Query -> Journal -> Journal
filterJournalPostings q j@Journal{jtxns=ts} = j{jtxns=map (filterTransactionPostings q) ts}
-- | Within each posting's amount, keep only the parts matching the query.
-- This can leave unbalanced transactions.
filterJournalAmounts :: Query -> Journal -> Journal
filterJournalAmounts q j@Journal{jtxns=ts} = j{jtxns=map (filterTransactionAmounts q) ts}
-- | Filter out all parts of this transaction's amounts which do not match the query.
-- This can leave the transaction unbalanced.
filterTransactionAmounts :: Query -> Transaction -> Transaction
filterTransactionAmounts q t@Transaction{tpostings=ps} = t{tpostings=map (filterPostingAmount q) ps}
-- | Filter out all parts of this posting's amount which do not match the query.
filterPostingAmount :: Query -> Posting -> Posting
filterPostingAmount q p@Posting{pamount=Mixed as} = p{pamount=Mixed $ filter (q `matchesAmount`) as}
filterTransactionPostings :: Query -> Transaction -> Transaction
filterTransactionPostings q t@Transaction{tpostings=ps} = t{tpostings=filter (q `matchesPosting`) ps}
{-
-------------------------------------------------------------------------------
-- filtering V1
-- | Keep only transactions we are interested in, as described by the
-- filter specification.
filterJournalTransactions :: FilterSpec -> Journal -> Journal
filterJournalTransactions FilterSpec{datespan=datespan
,cleared=cleared
-- ,real=real
-- ,empty=empty
,acctpats=apats
,descpats=dpats
,depth=depth
,fMetadata=md
} =
filterJournalTransactionsByStatus cleared .
filterJournalPostingsByDepth depth .
filterJournalTransactionsByAccount apats .
filterJournalTransactionsByMetadata md .
filterJournalTransactionsByDescription dpats .
filterJournalTransactionsByDate datespan
-- | Keep only postings we are interested in, as described by the filter
-- specification. This can leave unbalanced transactions.
filterJournalPostings :: FilterSpec -> Journal -> Journal
filterJournalPostings FilterSpec{datespan=datespan
,cleared=cleared
,real=real
,empty=empty
,acctpats=apats
,descpats=dpats
,depth=depth
,fMetadata=md
} =
filterJournalPostingsByRealness real .
filterJournalPostingsByStatus cleared .
filterJournalPostingsByEmpty empty .
filterJournalPostingsByDepth depth .
filterJournalPostingsByAccount apats .
filterJournalTransactionsByMetadata md .
filterJournalTransactionsByDescription dpats .
filterJournalTransactionsByDate datespan
-- | Keep only transactions whose metadata matches all metadata specifications.
filterJournalTransactionsByMetadata :: [(String,String)] -> Journal -> Journal
filterJournalTransactionsByMetadata pats j@Journal{jtxns=ts} = j{jtxns=filter matchmd ts}
where matchmd t = all (`elem` tmetadata t) pats
-- | Keep only transactions whose description matches the description patterns.
filterJournalTransactionsByDescription :: [String] -> Journal -> Journal
filterJournalTransactionsByDescription pats j@Journal{jtxns=ts} = j{jtxns=filter matchdesc ts}
where matchdesc = matchpats pats . tdescription
-- | Keep only transactions which fall between begin and end dates.
-- We include transactions on the begin date and exclude transactions on the end
-- date, like ledger. An empty date string means no restriction.
filterJournalTransactionsByDate :: DateSpan -> Journal -> Journal
filterJournalTransactionsByDate (DateSpan begin end) j@Journal{jtxns=ts} = j{jtxns=filter match ts}
where match t = maybe True (tdate t>=) begin && maybe True (tdate t<) end
-- | Keep only transactions which have the requested cleared/uncleared
-- status, if there is one.
filterJournalTransactionsByStatus :: Maybe Bool -> Journal -> Journal
filterJournalTransactionsByStatus Nothing j = j
filterJournalTransactionsByStatus (Just val) j@Journal{jtxns=ts} = j{jtxns=filter match ts}
where match = (==val).tstatus
-- | Keep only postings which have the requested cleared/uncleared status,
-- if there is one.
filterJournalPostingsByStatus :: Maybe Bool -> Journal -> Journal
filterJournalPostingsByStatus Nothing j = j
filterJournalPostingsByStatus (Just c) j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter ((==c) . postingCleared) ps}
-- | Strip out any virtual postings, if the flag is true, otherwise do
-- no filtering.
filterJournalPostingsByRealness :: Bool -> Journal -> Journal
filterJournalPostingsByRealness False j = j
filterJournalPostingsByRealness True j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter isReal ps}
-- | Strip out any postings with zero amount, unless the flag is true.
filterJournalPostingsByEmpty :: Bool -> Journal -> Journal
filterJournalPostingsByEmpty True j = j
filterJournalPostingsByEmpty False j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter (not . isEmptyPosting) ps}
-- -- | Keep only transactions which affect accounts deeper than the specified depth.
-- filterJournalTransactionsByDepth :: Maybe Int -> Journal -> Journal
-- filterJournalTransactionsByDepth Nothing j = j
-- filterJournalTransactionsByDepth (Just d) j@Journal{jtxns=ts} =
-- j{jtxns=(filter (any ((<= d+1) . accountNameLevel . paccount) . tpostings) ts)}
-- | Strip out any postings to accounts deeper than the specified depth
-- (and any transactions which have no postings as a result).
filterJournalPostingsByDepth :: Maybe Int -> Journal -> Journal
filterJournalPostingsByDepth Nothing j = j
filterJournalPostingsByDepth (Just d) j@Journal{jtxns=ts} =
j{jtxns=filter (not . null . tpostings) $ map filtertxns ts}
where filtertxns t@Transaction{tpostings=ps} =
t{tpostings=filter ((<= d) . accountNameLevel . paccount) ps}
-- | Keep only postings which affect accounts matched by the account patterns.
-- This can leave transactions unbalanced.
filterJournalPostingsByAccount :: [String] -> Journal -> Journal
filterJournalPostingsByAccount apats j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter (matchpats apats . paccount) ps}
-- | Keep only transactions which affect accounts matched by the account patterns.
-- More precisely: each positive account pattern excludes transactions
-- which do not contain a posting to a matched account, and each negative
-- account pattern excludes transactions containing a posting to a matched
-- account.
filterJournalTransactionsByAccount :: [String] -> Journal -> Journal
filterJournalTransactionsByAccount apats j@Journal{jtxns=ts} = j{jtxns=filter tmatch ts}
where
tmatch t = (null positives || any positivepmatch ps) && (null negatives || not (any negativepmatch ps)) where ps = tpostings t
positivepmatch p = any (`amatch` a) positives where a = paccount p
negativepmatch p = any (`amatch` a) negatives where a = paccount p
amatch pat a = regexMatchesCI (abspat pat) a
(negatives,positives) = partition isnegativepat apats
-}
-- | Do post-parse processing on a parsed journal to make it ready for
-- use. Reverse parsed data to normal order, standardise amount
-- formats, check/ensure that transactions are balanced, and maybe
-- check balance assertions.
journalFinalise :: ClockTime -> FilePath -> Text -> Bool -> ParsedJournal -> Either String Journal
journalFinalise t path txt assrt j@Journal{jfiles=fs} =
journalTieTransactions <$>
(journalBalanceTransactions assrt $
journalApplyCommodityStyles $
j {jfiles = (path,txt) : reverse fs
,jlastreadtime = t
,jtxns = reverse $ jtxns j -- NOTE: see addTransaction
,jmodifiertxns = reverse $ jmodifiertxns j -- NOTE: see addModifierTransaction
,jperiodictxns = reverse $ jperiodictxns j -- NOTE: see addPeriodicTransaction
,jmarketprices = reverse $ jmarketprices j -- NOTE: see addMarketPrice
})
journalNumberAndTieTransactions = journalTieTransactions . journalNumberTransactions
-- | Number (set the tindex field) this journal's transactions, counting upward from 1.
journalNumberTransactions :: Journal -> Journal
journalNumberTransactions j@Journal{jtxns=ts} = j{jtxns=map (\(i,t) -> t{tindex=i}) $ zip [1..] ts}
-- | Tie the knot in all of this journal's transactions, ensuring their postings
-- refer to them. This should be done last, after any other transaction-modifying operations.
journalTieTransactions :: Journal -> Journal
journalTieTransactions j@Journal{jtxns=ts} = j{jtxns=map txnTieKnot ts}
-- | Untie all transaction-posting knots in this journal, so that eg
-- recursiveSize and GHCI's :sprint can work on it.
journalUntieTransactions :: Transaction -> Transaction
journalUntieTransactions t@Transaction{tpostings=ps} = t{tpostings=map (\p -> p{ptransaction=Nothing}) ps}
-- | Check any balance assertions in the journal and return an error
-- message if any of them fail.
journalCheckBalanceAssertions :: Journal -> Either String Journal
journalCheckBalanceAssertions j =
runST $ journalBalanceTransactionsST
True
j
(return ())
(\_ _ -> return ())
(const $ return j)
-- | Check a posting's balance assertion and return an error if it
-- fails.
checkBalanceAssertion :: Posting -> MixedAmount -> Either String ()
checkBalanceAssertion p@Posting{ pbalanceassertion = Just (ass,_)} amt
| isReallyZeroAmount diff = Right ()
| True = Left err
where assertedcomm = acommodity ass
actualbal = fromMaybe nullamt $ find ((== assertedcomm) . acommodity) (amounts amt)
diff = ass - actualbal
diffplus | isNegativeAmount diff == False = "+"
| otherwise = ""
err = printf (unlines
[ "balance assertion error%s",
"after posting:",
"%s",
"balance assertion details:",
"date: %s",
"account: %s",
"commodity: %s",
"calculated: %s",
"asserted: %s (difference: %s)"
])
(case ptransaction p of
Nothing -> ":" -- shouldn't happen
Just t -> printf " in %s:\nin transaction:\n%s"
(showGenericSourcePos pos) (chomp $ show t) :: String
where pos = snd $ fromJust $ pbalanceassertion p)
(showPostingLine p)
(showDate $ postingDate p)
(T.unpack $ paccount p) -- XXX pack
assertedcomm
(showAmount actualbal)
(showAmount ass)
(diffplus ++ showAmount diff)
checkBalanceAssertion _ _ = Right ()
-- | Fill in any missing amounts and check that all journal transactions
-- balance, or return an error message. This is done after parsing all
-- amounts and applying canonical commodity styles, since balancing
-- depends on display precision. Reports only the first error encountered.
journalBalanceTransactions :: Bool -> Journal -> Either String Journal
journalBalanceTransactions assrt j =
runST $ journalBalanceTransactionsST
assrt -- check balance assertions also ?
(journalNumberTransactions j) -- journal to process
(newArray_ (1, genericLength $ jtxns j) :: forall s. ST s (STArray s Integer Transaction)) -- initialise state
(\arr tx -> writeArray arr (tindex tx) tx) -- update state
(fmap (\txns -> j{ jtxns = txns}) . getElems) -- summarise state
-- | Helper used by 'journalBalanceTransactions' and 'journalCheckBalanceAssertions'.
journalBalanceTransactionsST ::
Bool
-> Journal
-> ST s txns -- ^ initialise state
-> (txns -> Transaction -> ST s ()) -- ^ update state
-> (txns -> ST s a) -- ^ summarise state
-> ST s (Either String a)
journalBalanceTransactionsST assrt j createStore storeIn extract =
runExceptT $ do
bals <- lift $ HT.newSized size
txStore <- lift $ createStore
let env = Env bals
(storeIn txStore)
assrt
(Just $ journalCommodityStyles j)
flip R.runReaderT env $ do
dated <- fmap snd . sortBy (comparing fst) . concat
<$> mapM' discriminateByDate (jtxns j)
mapM' checkInferAndRegisterAmounts dated
lift $ extract txStore
where
size = genericLength $ journalPostings j
-- | Monad transformer stack with a reference to a mutable hashtable
-- of current account balances and a mutable array of finished
-- transactions in original parsing order.
type CurrentBalancesModifier s = R.ReaderT (Env s) (ExceptT String (ST s))
-- | Environment for 'CurrentBalancesModifier'
data Env s = Env { eBalances :: HT.HashTable s AccountName MixedAmount
, eStoreTx :: Transaction -> ST s ()
, eAssrt :: Bool
, eStyles :: Maybe (M.Map CommoditySymbol AmountStyle)
}
-- | This converts a transaction into a list of transactions or
-- postings whose dates have to be considered when checking
-- balance assertions and handled by 'checkInferAndRegisterAmounts'.
--
-- Transaction without balance assignments can be balanced and stored
-- immediately and their (possibly) dated postings are returned.
--
-- Transaction with balance assignments are only supported if no
-- posting has a 'pdate' value. Supported transactions will be
-- returned unchanged and balanced and stored later in 'checkInferAndRegisterAmounts'.
discriminateByDate :: Transaction
-> CurrentBalancesModifier s [(Day, Either Posting Transaction)]
discriminateByDate tx
| null (assignmentPostings tx) = do
styles <- R.reader $ eStyles
balanced <- lift $ ExceptT $ return $ balanceTransaction styles tx
storeTransaction balanced
return $
fmap (postingDate &&& (Left . removePrices)) $ tpostings $ balanced
| True = do
when (any (isJust . pdate) $ tpostings tx) $
throwError $ unlines $
["Not supported: Transactions with balance assignments "
,"AND dated postings without amount:\n"
, showTransaction tx]
return
[(tdate tx, Right $ tx { tpostings = removePrices <$> tpostings tx })]
-- | This function takes an object describing changes to
-- account balances on a single day - either a single posting
-- (from an already balanced transaction without assignments)
-- or a whole transaction with assignments (which is required to
-- have no posting with pdate set).
--
-- For a single posting, there is not much to do. Only add its amount
-- to its account and check the assertion, if there is one. This
-- functionality is provided by 'addAmountAndCheckBalance'.
--
-- For a whole transaction, it loops over all postings, and performs
-- 'addAmountAndCheckBalance', if there is an amount. If there is no
-- amount, the amount is inferred by the assertion or left empty if
-- there is no assertion. Then, the transaction is balanced, the
-- inferred amount added to the balance (all in 'balanceTransactionUpdate')
-- and the resulting transaction with no missing amounts is stored
-- in the array, for later retrieval.
--
-- Again in short:
--
-- 'Left Posting': Check the balance assertion and update the
-- account balance. If the amount is empty do nothing. this can be
-- the case e.g. for virtual postings
--
-- 'Right Transaction': Loop over all postings, infer their amounts
-- and then balance and store the transaction.
checkInferAndRegisterAmounts :: Either Posting Transaction
-> CurrentBalancesModifier s ()
checkInferAndRegisterAmounts (Left p) =
void $ addAmountAndCheckBalance return p
checkInferAndRegisterAmounts (Right oldTx) = do
let ps = tpostings oldTx
styles <- R.reader $ eStyles
newPostings <- forM ps $ addAmountAndCheckBalance inferFromAssignment
storeTransaction =<< balanceTransactionUpdate
(fmap void . addToBalance) styles oldTx { tpostings = newPostings }
where
inferFromAssignment :: Posting -> CurrentBalancesModifier s Posting
inferFromAssignment p = maybe (return p)
(fmap (\a -> p { pamount = a, porigin = Just $ originalPosting p }) . setBalance (paccount p) . fst)
$ pbalanceassertion p
-- | Adds a posting's amount to the posting's account balance and
-- checks a possible balance assertion. Or if there is no amount,
-- runs the supplied fallback action.
addAmountAndCheckBalance ::
(Posting -> CurrentBalancesModifier s Posting) -- ^ action if posting has no amount
-> Posting
-> CurrentBalancesModifier s Posting
addAmountAndCheckBalance _ p | hasAmount p = do
newAmt <- addToBalance (paccount p) $ pamount p
assrt <- R.reader eAssrt
lift $ when assrt $ ExceptT $ return $ checkBalanceAssertion p newAmt
return p
addAmountAndCheckBalance fallback p = fallback p
-- | Sets an account's balance to a given amount and returns the
-- difference of new and old amount.
setBalance :: AccountName -> Amount -> CurrentBalancesModifier s MixedAmount
setBalance acc amt = liftModifier $ \Env{ eBalances = bals } -> do
old <- HT.lookup bals acc
let new = Mixed $ (amt :) $ maybe []
(filter ((/= acommodity amt) . acommodity) . amounts) old
HT.insert bals acc new
return $ maybe new (new -) old
-- | Adds an amount to an account's balance and returns the resulting balance.
addToBalance :: AccountName -> MixedAmount -> CurrentBalancesModifier s MixedAmount
addToBalance acc amt = liftModifier $ \Env{ eBalances = bals } -> do
new <- maybe amt (+ amt) <$> HT.lookup bals acc
HT.insert bals acc new
return new
-- | Stores a transaction in the transaction array in original parsing order.
storeTransaction :: Transaction -> CurrentBalancesModifier s ()
storeTransaction tx = liftModifier $ ($tx) . eStoreTx
-- | Helper function.
liftModifier :: (Env s -> ST s a) -> CurrentBalancesModifier s a
liftModifier f = R.ask >>= lift . lift . f
-- | Choose and apply a consistent display format to the posting
-- amounts in each commodity. Each commodity's format is specified by
-- a commodity format directive, or otherwise inferred from posting
-- amounts as in hledger < 0.28.
journalApplyCommodityStyles :: Journal -> Journal
journalApplyCommodityStyles j@Journal{jtxns=ts, jmarketprices=mps} = j''
where
j' = journalInferCommodityStyles j
styles = journalCommodityStyles j'
j'' = j'{jtxns=map fixtransaction ts, jmarketprices=map fixmarketprice mps}
fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
fixposting p@Posting{pamount=a} = p{pamount=styleMixedAmount styles a}
fixmarketprice mp@MarketPrice{mpamount=a} = mp{mpamount=styleAmount styles a}
-- | Get all the amount styles defined in this journal, either
-- declared by a commodity directive (preferred) or inferred from amounts,
-- as a map from symbol to style.
journalCommodityStyles :: Journal -> M.Map CommoditySymbol AmountStyle
journalCommodityStyles j = declaredstyles <> inferredstyles
where
declaredstyles = M.mapMaybe cformat $ jcommodities j
inferredstyles = jinferredcommodities j
-- | Infer a display format for each commodity based on the amounts parsed.
-- "hledger... will use the format of the first posting amount in the
-- commodity, and the highest precision of all posting amounts in the commodity."
journalInferCommodityStyles :: Journal -> Journal
journalInferCommodityStyles j =
j{jinferredcommodities =
commodityStylesFromAmounts $
dbg8 "journalInferCommmodityStyles using amounts" $ journalAmounts j}
-- | Given a list of amounts in parse order, build a map from their commodity names
-- to standard commodity display formats.
commodityStylesFromAmounts :: [Amount] -> M.Map CommoditySymbol AmountStyle
commodityStylesFromAmounts amts = M.fromList commstyles
where
commamts = groupSort [(acommodity as, as) | as <- amts]
commstyles = [(c, canonicalStyleFrom $ map astyle as) | (c,as) <- commamts]
-- | Given an ordered list of amount styles, choose a canonical style.
-- That is: the style of the first, and the
-- maximum precision of all.
canonicalStyleFrom :: [AmountStyle] -> AmountStyle
canonicalStyleFrom [] = amountstyle
canonicalStyleFrom ss@(first:_) =
first{asprecision=prec, asdecimalpoint=mdec, asdigitgroups=mgrps}
where
mgrps = maybe Nothing Just $ headMay $ catMaybes $ map asdigitgroups ss
-- precision is maximum of all precisions
prec = maximumStrict $ map asprecision ss
mdec = Just $ headDef '.' $ catMaybes $ map asdecimalpoint ss
-- precision is that of first amount with a decimal point
-- (mdec, prec) =
-- case filter (isJust . asdecimalpoint) ss of
-- (s:_) -> (asdecimalpoint s, asprecision s)
-- [] -> (Just '.', 0)
-- -- | Apply this journal's historical price records to unpriced amounts where possible.
-- journalApplyMarketPrices :: Journal -> Journal
-- journalApplyMarketPrices j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
-- where
-- fixtransaction t@Transaction{tdate=d, tpostings=ps} = t{tpostings=map fixposting ps}
-- where
-- fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
-- fixmixedamount (Mixed as) = Mixed $ map fixamount as
-- fixamount = fixprice
-- fixprice a@Amount{price=Just _} = a
-- fixprice a@Amount{commodity=c} = a{price=maybe Nothing (Just . UnitPrice) $ journalMarketPriceFor j d c}
-- -- | Get the price for a commodity on the specified day from the price database, if known.
-- -- Does only one lookup step, ie will not look up the price of a price.
-- journalMarketPriceFor :: Journal -> Day -> CommoditySymbol -> Maybe MixedAmount
-- journalMarketPriceFor j d CommoditySymbol{symbol=s} = do
-- let ps = reverse $ filter ((<= d).mpdate) $ filter ((s==).hsymbol) $ sortBy (comparing mpdate) $ jmarketprices j
-- case ps of (MarketPrice{mpamount=a}:_) -> Just a
-- _ -> Nothing
-- | Convert all this journal's amounts to cost by applying their prices, if any.
journalConvertAmountsToCost :: Journal -> Journal
journalConvertAmountsToCost j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
where
-- similar to journalApplyCommodityStyles
fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
fixmixedamount (Mixed as) = Mixed $ map fixamount as
fixamount = styleAmount styles . costOfAmount
styles = journalCommodityStyles j
-- -- | Get this journal's unique, display-preference-canonicalised commodities, by symbol.
-- journalCanonicalCommodities :: Journal -> M.Map String CommoditySymbol
-- journalCanonicalCommodities j = canonicaliseCommodities $ journalAmountCommodities j
-- -- | Get all this journal's amounts' commodities, in the order parsed.
-- journalAmountCommodities :: Journal -> [CommoditySymbol]
-- journalAmountCommodities = map acommodity . concatMap amounts . journalAmounts
-- -- | Get all this journal's amount and price commodities, in the order parsed.
-- journalAmountAndPriceCommodities :: Journal -> [CommoditySymbol]
-- journalAmountAndPriceCommodities = concatMap amountCommodities . concatMap amounts . journalAmounts
-- -- | Get this amount's commodity and any commodities referenced in its price.
-- amountCommodities :: Amount -> [CommoditySymbol]
-- amountCommodities Amount{acommodity=c,aprice=p} =
-- case p of Nothing -> [c]
-- Just (UnitPrice ma) -> c:(concatMap amountCommodities $ amounts ma)
-- Just (TotalPrice ma) -> c:(concatMap amountCommodities $ amounts ma)
-- | Get an ordered list of the amounts in this journal which will
-- influence amount style canonicalisation. These are:
--
-- * amounts in market price directives (in parse order)
-- * amounts in postings (in parse order)
--
-- Amounts in default commodity directives also influence
-- canonicalisation, but earlier, as amounts are parsed.
-- Amounts in posting prices are not used for canonicalisation.
--
journalAmounts :: Journal -> [Amount]
journalAmounts = getConst . traverseJournalAmounts (Const . (:[]))
-- | Maps over all of the amounts in the journal
overJournalAmounts :: (Amount -> Amount) -> Journal -> Journal
overJournalAmounts f = runIdentity . traverseJournalAmounts (Identity . f)
-- | Traverses over all ofthe amounts in the journal, in the order
-- indicated by 'journalAmounts'.
traverseJournalAmounts
:: Applicative f
=> (Amount -> f Amount)
-> Journal -> f Journal
traverseJournalAmounts f j =
recombine <$> (traverse . mpa) f (jmarketprices j)
<*> (traverse . tp . traverse . pamt . maa . traverse) f (jtxns j)
where
recombine mps txns = j { jmarketprices = mps, jtxns = txns }
-- a bunch of traversals
mpa g mp = (\amt -> mp { mpamount = amt }) <$> g (mpamount mp)
tp g t = (\ps -> t { tpostings = ps }) <$> g (tpostings t)
pamt g p = (\amt -> p { pamount = amt }) <$> g (pamount p)
maa g (Mixed as) = Mixed <$> g as
-- | The fully specified date span enclosing the dates (primary or secondary)
-- of all this journal's transactions and postings, or DateSpan Nothing Nothing
-- if there are none.
journalDateSpan :: Bool -> Journal -> DateSpan
journalDateSpan secondary j
| null ts = DateSpan Nothing Nothing
| otherwise = DateSpan (Just earliest) (Just $ addDays 1 latest)
where
earliest = minimumStrict dates
latest = maximumStrict dates
dates = pdates ++ tdates
tdates = map (if secondary then transactionDate2 else tdate) ts
pdates = concatMap (catMaybes . map (if secondary then (Just . postingDate2) else pdate) . tpostings) ts
ts = jtxns j
-- #ifdef TESTS
test_journalDateSpan = do
"journalDateSpan" ~: do
assertEqual "" (DateSpan (Just $ fromGregorian 2014 1 10) (Just $ fromGregorian 2014 10 11))
(journalDateSpan True j)
where
j = nulljournal{jtxns = [nulltransaction{tdate = parsedate "2014/02/01"
,tpostings = [posting{pdate=Just (parsedate "2014/01/10")}]
}
,nulltransaction{tdate = parsedate "2014/09/01"
,tpostings = [posting{pdate2=Just (parsedate "2014/10/10")}]
}
]}
-- #endif
-- | Apply the pivot transformation to all postings in a journal,
-- replacing their account name by their value for the given field or tag.
journalPivot :: Text -> Journal -> Journal
journalPivot fieldortagname j = j{jtxns = map (transactionPivot fieldortagname) . jtxns $ j}
-- | Replace this transaction's postings' account names with the value
-- of the given field or tag, if any.
transactionPivot :: Text -> Transaction -> Transaction
transactionPivot fieldortagname t = t{tpostings = map (postingPivot fieldortagname) . tpostings $ t}
-- | Replace this posting's account name with the value
-- of the given field or tag, if any, otherwise the empty string.
postingPivot :: Text -> Posting -> Posting
postingPivot fieldortagname p = p{paccount = pivotedacct, porigin = Just $ originalPosting p}
where
pivotedacct
| Just t <- ptransaction p, fieldortagname == "code" = tcode t
| Just t <- ptransaction p, fieldortagname == "description" = tdescription t
| Just t <- ptransaction p, fieldortagname == "payee" = transactionPayee t
| Just t <- ptransaction p, fieldortagname == "note" = transactionNote t
| Just (_, value) <- postingFindTag fieldortagname p = value
| otherwise = ""
postingFindTag :: TagName -> Posting -> Maybe (TagName, TagValue)
postingFindTag tagname p = find ((tagname==) . fst) $ postingAllTags p
-- Misc helpers
-- | Check if a set of hledger account/description filter patterns matches the
-- given account name or entry description. Patterns are case-insensitive
-- regular expressions. Prefixed with not:, they become anti-patterns.
matchpats :: [String] -> String -> Bool
matchpats pats str =
(null positives || any match positives) && (null negatives || not (any match negatives))
where
(negatives,positives) = partition isnegativepat pats
match "" = True
match pat = regexMatchesCI (abspat pat) str
negateprefix = "not:"
isnegativepat = (negateprefix `isPrefixOf`)
abspat pat = if isnegativepat pat then drop (length negateprefix) pat else pat
-- debug helpers
-- traceAmountPrecision a = trace (show $ map (precision . acommodity) $ amounts a) a
-- tracePostingsCommodities ps = trace (show $ map ((map (precision . acommodity) . amounts) . pamount) ps) ps
-- tests
-- A sample journal for testing, similar to examples/sample.journal:
--
-- 2008/01/01 income
-- assets:bank:checking $1
-- income:salary
--
-- 2008/06/01 gift
-- assets:bank:checking $1
-- income:gifts
--
-- 2008/06/02 save
-- assets:bank:saving $1
-- assets:bank:checking
--
-- 2008/06/03 * eat & shop
-- expenses:food $1
-- expenses:supplies $1
-- assets:cash
--
-- 2008/10/01 take a loan
-- assets:bank:checking $1
-- liabilities:debts $-1
--
-- 2008/12/31 * pay off
-- liabilities:debts $1
-- assets:bank:checking
--
Right samplejournal = journalBalanceTransactions False $
nulljournal
{jtxns = [
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/01/01",
tdate2=Nothing,
tstatus=Unmarked,
tcode="",
tdescription="income",
tcomment="",
ttags=[],
tpostings=
["assets:bank:checking" `post` usd 1
,"income:salary" `post` missingamt
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/06/01",
tdate2=Nothing,
tstatus=Unmarked,
tcode="",
tdescription="gift",
tcomment="",
ttags=[],
tpostings=
["assets:bank:checking" `post` usd 1
,"income:gifts" `post` missingamt
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/06/02",
tdate2=Nothing,
tstatus=Unmarked,
tcode="",
tdescription="save",
tcomment="",
ttags=[],
tpostings=
["assets:bank:saving" `post` usd 1
,"assets:bank:checking" `post` usd (-1)
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/06/03",
tdate2=Nothing,
tstatus=Cleared,
tcode="",
tdescription="eat & shop",
tcomment="",
ttags=[],
tpostings=["expenses:food" `post` usd 1
,"expenses:supplies" `post` usd 1
,"assets:cash" `post` missingamt
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/10/01",
tdate2=Nothing,
tstatus=Unmarked,
tcode="",
tdescription="take a loan",
tcomment="",
ttags=[],
tpostings=["assets:bank:checking" `post` usd 1
,"liabilities:debts" `post` usd (-1)
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/12/31",
tdate2=Nothing,
tstatus=Unmarked,
tcode="",
tdescription="pay off",
tcomment="",
ttags=[],
tpostings=["liabilities:debts" `post` usd 1
,"assets:bank:checking" `post` usd (-1)
],
tpreceding_comment_lines=""
}
]
}
tests_Hledger_Data_Journal = TestList $
[
test_journalDateSpan
-- "query standard account types" ~:
-- do
-- let j = journal1
-- journalBalanceSheetAccountNames j `is` ["assets","assets:a","equity","equity:q","equity:q:qq","liabilities","liabilities:l"]
-- journalProfitAndLossAccountNames j `is` ["expenses","expenses:e","income","income:i"]
]