ec95b0723c
With this change, Transactions and Postings reference each other co-recursively. This makes constructing them more tedious, but it may also allow LedgerPostings to be dropped and code to be simplified. Time and space performance of register and balance is as before.
91 lines
3.6 KiB
Haskell
91 lines
3.6 KiB
Haskell
{-|
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A 'TimeLogEntry' is a clock-in, clock-out, or other directive in a timelog
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file (see timeclock.el or the command-line version). These can be
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converted to 'Transactions' and queried like a ledger.
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-}
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module Ledger.TimeLog
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where
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import Ledger.Utils
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import Ledger.Types
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import Ledger.Dates
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import Ledger.Commodity
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import Ledger.Transaction
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instance Show TimeLogEntry where
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show t = printf "%s %s %s" (show $ tlcode t) (show $ tldatetime t) (tlcomment t)
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instance Show TimeLogCode where
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show SetBalance = "b"
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show SetRequiredHours = "h"
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show In = "i"
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show Out = "o"
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show FinalOut = "O"
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instance Read TimeLogCode where
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readsPrec _ ('b' : xs) = [(SetBalance, xs)]
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readsPrec _ ('h' : xs) = [(SetRequiredHours, xs)]
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readsPrec _ ('i' : xs) = [(In, xs)]
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readsPrec _ ('o' : xs) = [(Out, xs)]
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readsPrec _ ('O' : xs) = [(FinalOut, xs)]
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readsPrec _ _ = []
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-- | Convert time log entries to ledger transactions. When there is no
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-- clockout, add one with the provided current time. Sessions crossing
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-- midnight are split into days to give accurate per-day totals.
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entriesFromTimeLogEntries :: LocalTime -> [TimeLogEntry] -> [Transaction]
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entriesFromTimeLogEntries _ [] = []
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entriesFromTimeLogEntries now [i]
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| odate > idate = entryFromTimeLogInOut i o' : entriesFromTimeLogEntries now [i',o]
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| otherwise = [entryFromTimeLogInOut i o]
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where
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o = TimeLogEntry Out end ""
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end = if itime > now then itime else now
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(itime,otime) = (tldatetime i,tldatetime o)
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(idate,odate) = (localDay itime,localDay otime)
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o' = o{tldatetime=itime{localDay=idate, localTimeOfDay=TimeOfDay 23 59 59}}
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i' = i{tldatetime=itime{localDay=addDays 1 idate, localTimeOfDay=midnight}}
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entriesFromTimeLogEntries now (i:o:rest)
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| odate > idate = entryFromTimeLogInOut i o' : entriesFromTimeLogEntries now (i':o:rest)
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| otherwise = entryFromTimeLogInOut i o : entriesFromTimeLogEntries now rest
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where
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(itime,otime) = (tldatetime i,tldatetime o)
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(idate,odate) = (localDay itime,localDay otime)
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o' = o{tldatetime=itime{localDay=idate, localTimeOfDay=TimeOfDay 23 59 59}}
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i' = i{tldatetime=itime{localDay=addDays 1 idate, localTimeOfDay=midnight}}
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-- | Convert a timelog clockin and clockout entry to an equivalent ledger
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-- entry, representing the time expenditure. Note this entry is not balanced,
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-- since we omit the \"assets:time\" transaction for simpler output.
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entryFromTimeLogInOut :: TimeLogEntry -> TimeLogEntry -> Transaction
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entryFromTimeLogInOut i o
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| otime >= itime = t
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| otherwise =
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error $ "clock-out time less than clock-in time in:\n" ++ showTransaction t
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where
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t = Transaction {
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tdate = idate,
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teffectivedate = Nothing,
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tstatus = True,
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tcode = "",
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tdescription = showtime itod ++ "-" ++ showtime otod,
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tcomment = "",
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tpostings = ps,
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tpreceding_comment_lines=""
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}
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showtime = take 5 . show
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acctname = tlcomment i
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itime = tldatetime i
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otime = tldatetime o
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itod = localTimeOfDay itime
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otod = localTimeOfDay otime
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idate = localDay itime
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hrs = elapsedSeconds (toutc otime) (toutc itime) / 3600 where toutc = localTimeToUTC utc
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amount = Mixed [hours hrs]
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ps = [Posting{pstatus=False,paccount=acctname,pamount=amount,
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pcomment="",ptype=RegularPosting,ptransaction=Just t}
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--,Posting "assets:time" (-amount) "" RegularPosting
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]
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