hledger/Ledger/TimeLog.hs

70 lines
2.7 KiB
Haskell

{-|
A 'TimeLog' is a parsed timelog file (see timeclock.el or the command-line
version) containing zero or more 'TimeLogEntry's. It can be converted to a
'RawLedger' for querying.
-}
module Ledger.TimeLog
where
import Ledger.Utils
import Ledger.Types
import Ledger.Dates
import Ledger.Commodity
import Ledger.Amount
import Ledger.Entry
instance Show TimeLogEntry where
show t = printf "%s %s %s" (show $ tlcode t) (show $ tldatetime t) (tlcomment t)
instance Show TimeLog where
show tl = printf "TimeLog with %d entries" $ length $ timelog_entries tl
-- | Convert time log entries to ledger entries. When there is no
-- clockout, add one with the provided current time. Sessions crossing
-- midnight are split to give accurate per-day totals.
entriesFromTimeLogEntries :: LocalTime -> [TimeLogEntry] -> [Entry]
entriesFromTimeLogEntries _ [] = []
entriesFromTimeLogEntries t [i] = [entryFromTimeLogInOut i (TimeLogEntry 'o' t "")]
entriesFromTimeLogEntries t (i:o:rest)
| odate > idate = [entryFromTimeLogInOut i o'] ++ entriesFromTimeLogEntries t (i':o:rest)
| otherwise = [entryFromTimeLogInOut i o] ++ entriesFromTimeLogEntries t rest
where
(itime,otime) = (tldatetime i,tldatetime o)
(idate,odate) = (localDay itime,localDay otime)
o' = o{tldatetime=itime{localDay=idate, localTimeOfDay=TimeOfDay 23 59 59}}
i' = i{tldatetime=itime{localDay=addDays 1 idate, localTimeOfDay=midnight}}
-- | Convert a timelog clockin and clockout entry to an equivalent ledger
-- entry, representing the time expenditure. Note this entry is not balanced,
-- since we omit the \"assets:time\" transaction for simpler output.
entryFromTimeLogInOut :: TimeLogEntry -> TimeLogEntry -> Entry
entryFromTimeLogInOut i o
| otime >= itime = e
| otherwise =
error $ "clock-out time less than clock-in time in:\n" ++ showEntry e
where
e = Entry {
edate = idate,
estatus = True,
ecode = "",
edescription = showtime itod ++ "-" ++ showtime otod,
ecomment = "",
etransactions = txns,
epreceding_comment_lines=""
}
showtime = take 5 . show
acctname = tlcomment i
itime = tldatetime i
otime = tldatetime o
itod = localTimeOfDay itime
otod = localTimeOfDay otime
idate = localDay itime
odate = localDay otime
hrs = elapsedSeconds (toutc otime) (toutc itime) / 3600 where toutc = localTimeToUTC utc
amount = Mixed [hours hrs]
txns = [RawTransaction acctname amount "" RegularTransaction
--,RawTransaction "assets:time" (-amount) "" RegularTransaction
]