hledger/EntryTransaction.hs
2007-02-20 00:21:57 +00:00

73 lines
2.4 KiB
Haskell

module EntryTransaction
where
import Utils
import BasicTypes
import Entry
import Transaction
-- We convert Transactions into EntryTransactions, which are (entry,
-- transaction) pairs, since I couldn't see how to easily have
-- transactions reference their entry like in OO. These are referred to
-- as just "transactions" hereafter.
type EntryTransaction = (Entry,Transaction)
entry (e,t) = e
transaction (e,t) = t
date (e,t) = edate e
status (e,t) = estatus e
code (e,t) = ecode e
description (e,t) = edescription e
account (e,t) = taccount t
amount (e,t) = tamount t
flattenEntry :: Entry -> [EntryTransaction]
flattenEntry e = [(e,t) | t <- etransactions e]
entryTransactionsFrom :: [Entry] -> [EntryTransaction]
entryTransactionsFrom es = concat $ map flattenEntry es
sumEntryTransactions :: [EntryTransaction] -> Amount
sumEntryTransactions ets =
sumTransactions $ map transaction ets
matchTransactionAccount :: String -> EntryTransaction -> Bool
matchTransactionAccount s t =
case matchRegex (mkRegex s) (account t) of
Nothing -> False
otherwise -> True
matchTransactionDescription :: String -> EntryTransaction -> Bool
matchTransactionDescription s t =
case matchRegex (mkRegex s) (description t) of
Nothing -> False
otherwise -> True
showTransactionsWithBalances :: [EntryTransaction] -> Amount -> String
showTransactionsWithBalances [] _ = []
showTransactionsWithBalances ts b =
unlines $ showTransactionsWithBalances' ts dummyt b
where
dummyt = (Entry "" False "" "" [], Transaction "" (Amount "" 0))
showTransactionsWithBalances' [] _ _ = []
showTransactionsWithBalances' (t:ts) tprev b =
(if (entry t /= (entry tprev))
then [showTransactionDescriptionAndBalance t b']
else [showTransactionAndBalance t b'])
++ (showTransactionsWithBalances' ts t b')
where b' = b + (amount t)
showTransactionDescriptionAndBalance :: EntryTransaction -> Amount -> String
showTransactionDescriptionAndBalance t b =
(showEntry $ entry t) ++ (showTransaction $ transaction t) ++ (showBalance b)
showTransactionAndBalance :: EntryTransaction -> Amount -> String
showTransactionAndBalance t b =
(replicate 32 ' ') ++ (showTransaction $ transaction t) ++ (showBalance b)
showBalance :: Amount -> String
showBalance b = printf " %12s" (showAmountRoundedOrZero b)