hledger/LedgerEntry.hs
2008-06-28 05:07:09 +00:00

87 lines
3.3 KiB
Haskell

module LedgerEntry
where
import Utils
import Types
import LedgerTransaction
import Amount
instance Show LedgerEntry where show = showEntryDescription
-- for register report
--
-- a register entry is displayed as two or more lines like this:
-- date description account amount balance
-- DDDDDDDDDD dddddddddddddddddddd aaaaaaaaaaaaaaaaaaaaaa AAAAAAAAAAA AAAAAAAAAAAA
-- aaaaaaaaaaaaaaaaaaaaaa AAAAAAAAAAA AAAAAAAAAAAA
-- ... ... ...
-- datewidth = 10
-- descwidth = 20
-- acctwidth = 22
-- amtwidth = 11
-- balwidth = 12
showEntryDescription e = (showDate $ edate e) ++ " " ++ (showDescription $ edescription e) ++ " "
showDate d = printf "%-10s" d
showDescription s = printf "%-20s" (elideRight 20 s)
-- quick & dirty: checks entry's 0 balance only to 8 places
isEntryBalanced :: LedgerEntry -> Bool
isEntryBalanced = ((0::Double)==) . read . printf "%0.8f" . quantity . sumLedgerTransactions . etransactions
autofillEntry :: LedgerEntry -> LedgerEntry
autofillEntry e@(LedgerEntry _ _ _ _ _ ts _) =
let e' = e{etransactions=autofillTransactions ts} in
case (isEntryBalanced e') of
True -> e'
False -> (error $ "transactions don't balance in " ++ show e)
-- the print command shows cleaned up ledger file entries, something like:
--
-- yyyy/mm/dd[ *][ CODE] description......... [ ; comment...............]
-- account name 1..................... ...$amount1[ ; comment...............]
-- account name 2..................... ..$-amount1[ ; comment...............]
--
-- pcodewidth = no limit -- 10
-- pdescwidth = no limit -- 20
-- pacctwidth = 35 minimum, no maximum
-- pamtwidth = 11
-- pcommentwidth = no limit -- 22
showEntry :: LedgerEntry -> String
showEntry e =
unlines $ [precedingcomment ++ description] ++ (showtxns $ etransactions e) ++ [""]
where
precedingcomment = epreceding_comment_lines e
description = concat [date, status, code, desc] -- , comment]
date = showDate $ edate e
status = if estatus e then " *" else ""
code = if (length $ ecode e) > 0 then (printf " (%s)" $ ecode e) else ""
desc = " " ++ edescription e
comment = if (length $ ecomment e) > 0 then " ; "++(ecomment e) else ""
showtxns (t1:t2:[]) = [showtxn t1, showtxnnoamt t2]
showtxns ts = map showtxn ts
showtxn t = showacct t ++ " " ++ (showamount $ tamount t) ++ (showcomment $ tcomment t)
showtxnnoamt t = showacct t ++ " " ++ (showcomment $ tcomment t)
showacct t = " " ++ (showaccountname $ taccount t)
showamount = printf "%12s" . showAmountRounded
showaccountname s = printf "%-34s" s
showcomment s = if (length s) > 0 then " ; "++s else ""
showEntries :: [LedgerEntry] -> String
showEntries = concatMap showEntry
entrySetPrecision :: Int -> LedgerEntry -> LedgerEntry
entrySetPrecision p (LedgerEntry d s c desc comm ts prec) =
LedgerEntry d s c desc comm (map (ledgerTransactionSetPrecision p) ts) prec
-- modifier & periodic entries
instance Show ModifierEntry where
show e = "= " ++ (valueexpr e) ++ "\n" ++ unlines (map show (m_transactions e))
instance Show PeriodicEntry where
show e = "~ " ++ (periodexpr e) ++ "\n" ++ unlines (map show (p_transactions e))