hledger/hledger-lib/Hledger/Data/Journal.hs
2017-12-04 12:26:26 -08:00

1088 lines
46 KiB
Haskell

{-# LANGUAGE Rank2Types #-}
{-# LANGUAGE StandaloneDeriving, OverloadedStrings #-}
{-|
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,
journalApplyAliases,
journalBalanceTransactions,
journalApplyCommodityStyles,
commodityStylesFromAmounts,
journalConvertAmountsToCost,
journalFinalise,
journalPivot,
-- * Filtering
filterJournalTransactions,
filterJournalPostings,
filterJournalAmounts,
filterTransactionAmounts,
filterTransactionPostings,
filterPostingAmount,
-- * Querying
journalAccountNames,
journalAccountNamesUsed,
-- 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
import Data.Monoid
import Data.Ord
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 (jmodifiertxns j) +
length (jperiodictxns j))
(length accounts)
| debugLevel < 6 = printf "Journal %s with %d transactions, %d accounts: %s"
(journalFilePath j)
(length (jtxns j) +
length (jmodifiertxns j) +
length (jperiodictxns j))
(length accounts)
(show accounts)
| otherwise = printf "Journal %s with %d transactions, %d accounts: %s, commodity styles: %s"
(journalFilePath j)
(length (jtxns j) +
length (jmodifiertxns j) +
length (jperiodictxns 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 Monoid Journal where
mempty = nulljournal
mappend 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)
}
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
-- | Unique account names posted to in this journal.
journalAccountNamesUsed :: Journal -> [AccountName]
journalAccountNamesUsed = sort . accountNamesFromPostings . journalPostings
-- | Unique account names in this journal, including parent accounts containing no postings.
journalAccountNames :: Journal -> [AccountName]
journalAccountNames = sort . expandAccountNames . journalAccountNamesUsed
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
-}
-- | Apply additional account aliases (eg from the command-line) to all postings in a journal.
journalApplyAliases :: [AccountAlias] -> Journal -> Journal
journalApplyAliases aliases j@Journal{jtxns=ts} =
-- (if null aliases
-- then id
-- else (dbgtrace $
-- "applying additional command-line aliases:\n"
-- ++ chomp (unlines $ map (" "++) $ lines $ ppShow aliases))) $
j{jtxns=map dotransaction ts}
where
dotransaction t@Transaction{tpostings=ps} = t{tpostings=map doposting ps}
doposting p@Posting{paccount=a} = p{paccount= accountNameApplyAliases aliases a}
-- | Do post-parse processing on a parsed journal to make it ready for
-- use. Reverse parsed data to normal order, canonicalise 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} = do
(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) -- noops
-- | 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 ()
-- | 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) }
-- | 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))
-- | 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
-- | Generalization used in the definition of
-- 'journalBalanceTransactionsST and 'journalCheckBalanceAssertions'
journalBalanceTransactionsST ::
Bool
-> Journal
-> ST s txns
-- ^ creates transaction store
-> (txns -> Transaction -> ST s ())
-- ^ "store" operation
-> (txns -> ST s a)
-- ^ calculate result from transactions
-> ST s (Either String a)
journalBalanceTransactionsST assrt j createStore storeIn extract =
runExceptT $ do
bals <- lift $ HT.newSized size
txStore <- lift $ createStore
flip R.runReaderT (Env bals (storeIn txStore) assrt $
Just $ jinferredcommodities j) $ do
dated <- fmap snd . sortBy (comparing fst) . concat
<$> mapM' discriminateByDate (jtxns j)
mapM' checkInferAndRegisterAmounts dated
lift $ extract txStore
where size = genericLength $ journalPostings j
-- | This converts a transaction into a list of objects 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 different objects describing changes to
-- account balances on a single day. It can handle either a single
-- posting (from an already balanced transaction without assigments)
-- or a whole transaction with assignments (which is required to 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 amonut to the posting's account balance and
-- checks a possible balance assertion. If there is no amount, it runs
-- the supplied fallback action.
addAmountAndCheckBalance :: (Posting -> CurrentBalancesModifier s Posting)
-- ^ action to execute, 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
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=fixmixedamount a}
fixmarketprice mp@MarketPrice{mpamount=a} = mp{mpamount=fixamount a}
fixmixedamount (Mixed as) = Mixed $ map fixamount as
fixamount a@Amount{acommodity=c} = a{astyle=journalCommodityStyle j' c}
-- | Get this journal's standard display style for the given
-- commodity. That is the style defined by the last corresponding
-- commodity format directive if any, otherwise the style inferred
-- from the posting amounts (or in some cases, price amounts) in this
-- commodity if any, otherwise the default style.
journalCommodityStyle :: Journal -> CommoditySymbol -> AmountStyle
journalCommodityStyle j = fromMaybe amountstyle{asprecision=2} . journalCommodityStyleLookup j
journalCommodityStyleLookup :: Journal -> CommoditySymbol -> Maybe AmountStyle
journalCommodityStyleLookup j c =
listToMaybe $
catMaybes [
M.lookup c (jcommodities j) >>= cformat
,M.lookup c $ 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 "journalChooseCommmodityStyles 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 = applyJournalStyle . costOfAmount
applyJournalStyle a
| Just s <- journalCommodityStyleLookup j (acommodity a) = a{astyle=s}
| otherwise = a
-- -- | 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"]
]