90 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
		
			3.5 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 'LedgerTransactions' 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.LedgerTransaction
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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] -> [LedgerTransaction]
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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 -> LedgerTransaction
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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" ++ showLedgerTransaction t
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    where
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      t = LedgerTransaction {
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            ltdate         = idate,
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            lteffectivedate = Nothing,
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            ltstatus       = True,
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            ltcode         = "",
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            ltdescription  = showtime itod ++ "-" ++ showtime otod,
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            ltcomment      = "",
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            ltpostings = ps,
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            ltpreceding_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 False acctname amount "" RegularPosting
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                 --,Posting "assets:time" (-amount) "" RegularPosting
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                 ]
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