421 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			421 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
| {-|
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| 
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| A 'Journal' is a set of 'Transaction's and related data, usually parsed
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| from a hledger/ledger journal file or timelog. This is the primary hledger
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| data object.
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| 
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| -}
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| 
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| module Hledger.Data.Journal
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| where
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| import Data.List
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| import Data.Map (findWithDefault, (!))
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| import Data.Ord
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| import Data.Time.Calendar
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| import Data.Time.LocalTime
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| import Data.Tree
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| import Safe (headDef)
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| import System.Time (ClockTime(TOD))
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| import Test.HUnit
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| import Text.Printf
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| import qualified Data.Map as Map
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| 
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| import Hledger.Utils
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| import Hledger.Data.Types
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| import Hledger.Data.AccountName
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| import Hledger.Data.Amount
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| import Hledger.Data.Commodity (canonicaliseCommodities)
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| import Hledger.Data.Dates (nulldatespan)
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| import Hledger.Data.Transaction (journalTransactionWithDate,balanceTransaction)
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| import Hledger.Data.Posting
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| import Hledger.Data.TimeLog
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| import Hledger.Data.Matching
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| 
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| 
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| instance Show Journal where
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|     show j = printf "Journal %s with %d transactions, %d accounts: %s"
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|              (journalFilePath j)
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|              (length (jtxns j) +
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|               length (jmodifiertxns j) +
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|               length (jperiodictxns j))
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|              (length accounts)
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|              (show accounts)
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|              -- ++ (show $ journalTransactions l)
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|              where accounts = flatten $ journalAccountNameTree j
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| 
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| nulljournal :: Journal
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| nulljournal = Journal { jmodifiertxns = []
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|                       , jperiodictxns = []
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|                       , jtxns = []
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|                       , open_timelog_entries = []
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|                       , historical_prices = []
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|                       , final_comment_lines = []
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|                       , jContext = nullctx
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|                       , files = []
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|                       , filereadtime = TOD 0 0
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|                       }
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| 
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| nullctx :: JournalContext
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| nullctx = Ctx { ctxYear = Nothing, ctxCommodity = Nothing, ctxAccount = [], ctxAliases = [] }
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| 
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| nullfilterspec :: FilterSpec
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| nullfilterspec = FilterSpec {
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|      datespan=nulldatespan
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|     ,cleared=Nothing
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|     ,real=False
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|     ,empty=False
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|     ,acctpats=[]
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|     ,descpats=[]
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|     ,depth=Nothing
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|     }
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| 
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| journalFilePath :: Journal -> FilePath
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| journalFilePath = fst . mainfile
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| 
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| journalFilePaths :: Journal -> [FilePath]
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| journalFilePaths = map fst . files
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| 
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| mainfile :: Journal -> (FilePath, String)
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| mainfile = headDef ("", "") . files
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| 
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| addTransaction :: Transaction -> Journal -> Journal
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| addTransaction t l0 = l0 { jtxns = t : jtxns l0 }
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| 
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| addModifierTransaction :: ModifierTransaction -> Journal -> Journal
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| addModifierTransaction mt l0 = l0 { jmodifiertxns = mt : jmodifiertxns l0 }
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| 
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| addPeriodicTransaction :: PeriodicTransaction -> Journal -> Journal
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| addPeriodicTransaction pt l0 = l0 { jperiodictxns = pt : jperiodictxns l0 }
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| 
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| addHistoricalPrice :: HistoricalPrice -> Journal -> Journal
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| addHistoricalPrice h l0 = l0 { historical_prices = h : historical_prices l0 }
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| 
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| addTimeLogEntry :: TimeLogEntry -> Journal -> Journal
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| addTimeLogEntry tle l0 = l0 { open_timelog_entries = tle : open_timelog_entries l0 }
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| 
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| journalPostings :: Journal -> [Posting]
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| journalPostings = concatMap tpostings . jtxns
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| 
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| journalAccountNamesUsed :: Journal -> [AccountName]
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| journalAccountNamesUsed = accountNamesFromPostings . journalPostings
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| 
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| journalAccountNames :: Journal -> [AccountName]
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| journalAccountNames = sort . expandAccountNames . journalAccountNamesUsed
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| 
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| journalAccountNameTree :: Journal -> Tree AccountName
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| journalAccountNameTree = accountNameTreeFrom . journalAccountNames
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| 
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| -- Various kinds of filtering on journals. We do it differently depending
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| -- on the command.
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| 
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| -------------------------------------------------------------------------------
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| -- filtering V2
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| 
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| -- | Keep only postings matching the query expression.
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| -- This can leave unbalanced transactions.
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| filterJournalPostings2 :: Matcher -> Journal -> Journal
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| filterJournalPostings2 m j@Journal{jtxns=ts} = j{jtxns=map filtertransactionpostings ts}
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|     where
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|       filtertransactionpostings t@Transaction{tpostings=ps} = t{tpostings=filter (m `matchesPosting`) ps}
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| 
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| -- | Keep only transactions matching the query expression.
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| filterJournalTransactions2 :: Matcher -> Journal -> Journal
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| filterJournalTransactions2 m j@Journal{jtxns=ts} = j{jtxns=filter (m `matchesTransaction`) ts}
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| 
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| -------------------------------------------------------------------------------
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| -- filtering V1
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| 
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| -- | Keep only transactions we are interested in, as described by the
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| -- filter specification.
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| filterJournalTransactions :: FilterSpec -> Journal -> Journal
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| filterJournalTransactions FilterSpec{datespan=datespan
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|                                     ,cleared=cleared
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|                                     -- ,real=real
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|                                     -- ,empty=empty
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|                                     ,acctpats=apats
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|                                     ,descpats=dpats
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|                                     ,depth=depth
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|                                     } =
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|     filterJournalTransactionsByClearedStatus cleared .
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|     filterJournalPostingsByDepth depth .
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|     filterJournalTransactionsByAccount apats .
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|     filterJournalTransactionsByDescription dpats .
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|     filterJournalTransactionsByDate datespan
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| 
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| -- | Keep only postings we are interested in, as described by the filter
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| -- specification. This can leave unbalanced transactions.
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| filterJournalPostings :: FilterSpec -> Journal -> Journal
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| filterJournalPostings FilterSpec{datespan=datespan
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|                                 ,cleared=cleared
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|                                 ,real=real
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|                                 ,empty=empty
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|                                 ,acctpats=apats
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|                                 ,descpats=dpats
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|                                 ,depth=depth
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|                                 } =
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|     filterJournalPostingsByRealness real .
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|     filterJournalPostingsByClearedStatus cleared .
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|     filterJournalPostingsByEmpty empty .
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|     filterJournalPostingsByDepth depth .
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|     filterJournalPostingsByAccount apats .
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|     filterJournalTransactionsByDescription dpats .
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|     filterJournalTransactionsByDate datespan
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| 
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| -- | Keep only transactions whose description matches the description patterns.
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| filterJournalTransactionsByDescription :: [String] -> Journal -> Journal
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| filterJournalTransactionsByDescription pats j@Journal{jtxns=ts} = j{jtxns=filter matchdesc ts}
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|     where matchdesc = matchpats pats . tdescription
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| 
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| -- | Keep only transactions which fall between begin and end dates.
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| -- We include transactions on the begin date and exclude transactions on the end
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| -- date, like ledger.  An empty date string means no restriction.
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| filterJournalTransactionsByDate :: DateSpan -> Journal -> Journal
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| filterJournalTransactionsByDate (DateSpan begin end) j@Journal{jtxns=ts} = j{jtxns=filter match ts}
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|     where match t = maybe True (tdate t>=) begin && maybe True (tdate t<) end
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| 
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| -- | Keep only transactions which have the requested cleared/uncleared
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| -- status, if there is one.
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| filterJournalTransactionsByClearedStatus :: Maybe Bool -> Journal -> Journal
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| filterJournalTransactionsByClearedStatus Nothing j = j
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| filterJournalTransactionsByClearedStatus (Just val) j@Journal{jtxns=ts} = j{jtxns=filter match ts}
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|     where match = (==val).tstatus
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| 
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| -- | Keep only postings which have the requested cleared/uncleared status,
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| -- if there is one.
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| filterJournalPostingsByClearedStatus :: Maybe Bool -> Journal -> Journal
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| filterJournalPostingsByClearedStatus Nothing j = j
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| filterJournalPostingsByClearedStatus (Just c) j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
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|     where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter ((==c) . postingCleared) ps}
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| 
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| -- | Strip out any virtual postings, if the flag is true, otherwise do
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| -- no filtering.
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| filterJournalPostingsByRealness :: Bool -> Journal -> Journal
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| filterJournalPostingsByRealness False l = l
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| filterJournalPostingsByRealness True j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
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|     where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter isReal ps}
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| 
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| -- | Strip out any postings with zero amount, unless the flag is true.
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| filterJournalPostingsByEmpty :: Bool -> Journal -> Journal
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| filterJournalPostingsByEmpty True l = l
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| filterJournalPostingsByEmpty False j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
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|     where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter (not . isEmptyPosting) ps}
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| 
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| -- | Keep only transactions which affect accounts deeper than the specified depth.
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| filterJournalTransactionsByDepth :: Maybe Int -> Journal -> Journal
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| filterJournalTransactionsByDepth Nothing j = j
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| filterJournalTransactionsByDepth (Just d) j@Journal{jtxns=ts} =
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|     j{jtxns=(filter (any ((<= d+1) . accountNameLevel . paccount) . tpostings) ts)}
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| 
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| -- | Strip out any postings to accounts deeper than the specified depth
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| -- (and any transactions which have no postings as a result).
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| filterJournalPostingsByDepth :: Maybe Int -> Journal -> Journal
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| filterJournalPostingsByDepth Nothing j = j
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| filterJournalPostingsByDepth (Just d) j@Journal{jtxns=ts} =
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|     j{jtxns=filter (not . null . tpostings) $ map filtertxns ts}
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|     where filtertxns t@Transaction{tpostings=ps} =
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|               t{tpostings=filter ((<= d) . accountNameLevel . paccount) ps}
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| 
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| -- | Keep only transactions which affect accounts matched by the account patterns.
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| -- More precisely: each positive account pattern excludes transactions
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| -- which do not contain a posting to a matched account, and each negative
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| -- account pattern excludes transactions containing a posting to a matched
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| -- account.
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| filterJournalTransactionsByAccount :: [String] -> Journal -> Journal
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| filterJournalTransactionsByAccount apats j@Journal{jtxns=ts} = j{jtxns=filter tmatch ts}
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|     where
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|       tmatch t = (null positives || any positivepmatch ps) && (null negatives || not (any negativepmatch ps)) where ps = tpostings t
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|       positivepmatch p = any (`amatch` a) positives where a = paccount p
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|       negativepmatch p = any (`amatch` a) negatives where a = paccount p
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|       amatch pat a = regexMatches (abspat pat) a
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|       (negatives,positives) = partition isnegativepat apats
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| 
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| -- | Keep only postings which affect accounts matched by the account patterns.
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| -- This can leave transactions unbalanced.
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| filterJournalPostingsByAccount :: [String] -> Journal -> Journal
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| filterJournalPostingsByAccount apats j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
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|     where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter (matchpats apats . paccount) ps}
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| 
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| -- | Convert this journal's transactions' primary date to either the
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| -- actual or effective date.
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| journalSelectingDate :: WhichDate -> Journal -> Journal
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| journalSelectingDate ActualDate j = j
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| journalSelectingDate EffectiveDate j =
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|     j{jtxns=map (journalTransactionWithDate EffectiveDate) $ jtxns j}
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| 
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| -- | Apply additional account aliases (eg from the command-line) to all postings in a journal.
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| journalApplyAliases :: [(AccountName,AccountName)] -> Journal -> Journal
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| journalApplyAliases aliases j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
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|     where
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|       fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
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|       fixposting p@Posting{paccount=a} = p{paccount=accountNameApplyAliases aliases a}
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| 
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| -- | Do post-parse processing on a journal, to make it ready for use.
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| journalFinalise :: ClockTime -> LocalTime -> FilePath -> String -> JournalContext -> Journal -> Either String Journal
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| journalFinalise tclock tlocal path txt ctx j@Journal{files=fs} =
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|     journalBalanceTransactions $
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|     journalCanonicaliseAmounts $
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|     journalApplyHistoricalPrices $
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|     journalCloseTimeLogEntries tlocal
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|     j{files=(path,txt):fs, filereadtime=tclock, jContext=ctx}
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| 
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| -- | Fill in any missing amounts and check that all journal transactions
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| -- balance, or return an error message. This is done after parsing all
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| -- amounts and working out the canonical commodities, since balancing
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| -- depends on display precision. Reports only the first error encountered.
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| journalBalanceTransactions :: Journal -> Either String Journal
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| journalBalanceTransactions j@Journal{jtxns=ts} =
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|   case sequence $ map balance ts of Right ts' -> Right j{jtxns=ts'}
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|                                     Left e    -> Left e
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|       where balance = balanceTransaction (Just $ journalCanonicalCommodities j)
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| 
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| -- | Convert all the journal's amounts to their canonical display
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| -- settings.  Ie, all amounts in a given commodity will use (a) the
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| -- display settings of the first, and (b) the greatest precision, of the
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| -- amounts in that commodity. Prices are canonicalised as well, so consider
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| -- calling journalApplyHistoricalPrices before this.
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| journalCanonicaliseAmounts :: Journal -> Journal
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| journalCanonicaliseAmounts j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
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|     where
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|       fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
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|       fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
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|       fixmixedamount (Mixed as) = Mixed $ map fixamount as
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|       fixamount a@Amount{commodity=c} = a{commodity=fixcommodity c}
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|       fixcommodity c@Commodity{symbol=s} = findWithDefault c s canonicalcommoditymap
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|       canonicalcommoditymap = journalCanonicalCommodities j
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| 
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| -- | Apply this journal's historical price records to unpriced amounts where possible.
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| journalApplyHistoricalPrices :: Journal -> Journal
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| journalApplyHistoricalPrices j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
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|     where
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|       fixtransaction t@Transaction{tdate=d, tpostings=ps} = t{tpostings=map fixposting ps}
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|        where
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|         fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
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|         fixmixedamount (Mixed as) = Mixed $ map fixamount as
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|         fixamount = fixprice
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|         fixprice a@Amount{price=Just _} = a
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|         fixprice a@Amount{commodity=c} = a{price=maybe Nothing (Just . UnitPrice) $ journalHistoricalPriceFor j d c}
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| 
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| -- | Get the price for a commodity on the specified day from the price database, if known.
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| -- Does only one lookup step, ie will not look up the price of a price.
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| journalHistoricalPriceFor :: Journal -> Day -> Commodity -> Maybe MixedAmount
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| journalHistoricalPriceFor j d Commodity{symbol=s} = do
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|   let ps = reverse $ filter ((<= d).hdate) $ filter ((s==).hsymbol) $ sortBy (comparing hdate) $ historical_prices j
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|   case ps of (HistoricalPrice{hamount=a}:_) -> Just a
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|              _ -> Nothing
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| 
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| -- | Close any open timelog sessions in this journal using the provided current time.
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| journalCloseTimeLogEntries :: LocalTime -> Journal -> Journal
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| journalCloseTimeLogEntries now j@Journal{jtxns=ts, open_timelog_entries=es} =
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|   j{jtxns = ts ++ (timeLogEntriesToTransactions now es), open_timelog_entries = []}
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| 
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| -- | Convert all this journal's amounts to cost by applying their prices, if any.
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| journalConvertAmountsToCost :: Journal -> Journal
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| journalConvertAmountsToCost j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
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|     where
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|       -- similar to journalCanonicaliseAmounts
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|       fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
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|       fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
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|       fixmixedamount (Mixed as) = Mixed $ map fixamount as
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|       fixamount = canonicaliseAmountCommodity (Just $ journalCanonicalCommodities j) . costOfAmount
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| 
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| -- | Get this journal's unique, display-preference-canonicalised commodities, by symbol.
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| journalCanonicalCommodities :: Journal -> Map.Map String Commodity
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| journalCanonicalCommodities j = canonicaliseCommodities $ journalAmountCommodities j
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| 
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| -- | Get all this journal's amounts' commodities, in the order parsed.
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| journalAmountCommodities :: Journal -> [Commodity]
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| journalAmountCommodities = map commodity . concatMap amounts . journalAmounts
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| 
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| -- | Get all this journal's amount and price commodities, in the order parsed.
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| journalAmountAndPriceCommodities :: Journal -> [Commodity]
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| journalAmountAndPriceCommodities = concatMap amountCommodities . concatMap amounts . journalAmounts
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| 
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| -- | Get this amount's commodity and any commodities referenced in its price.
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| amountCommodities :: Amount -> [Commodity]
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| amountCommodities Amount{commodity=c,price=p} =
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|     case p of Nothing -> [c]
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|               Just (UnitPrice ma)  -> c:(concatMap amountCommodities $ amounts ma)
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|               Just (TotalPrice ma) -> c:(concatMap amountCommodities $ amounts ma)
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| 
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| -- | Get all this journal's amounts, in the order parsed.
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| journalAmounts :: Journal -> [MixedAmount]
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| journalAmounts = map pamount . journalPostings
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| 
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| -- | The (fully specified) date span containing this journal's transactions,
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| -- or DateSpan Nothing Nothing if there are none.
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| journalDateSpan :: Journal -> DateSpan
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| journalDateSpan j
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|     | null ts = DateSpan Nothing Nothing
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|     | otherwise = DateSpan (Just $ tdate $ head ts) (Just $ addDays 1 $ tdate $ last ts)
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|     where
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|       ts = sortBy (comparing tdate) $ jtxns j
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| 
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| -- | Check if a set of hledger account/description filter patterns matches the
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| -- given account name or entry description.  Patterns are case-insensitive
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| -- regular expressions. Prefixed with not:, they become anti-patterns.
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| matchpats :: [String] -> String -> Bool
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| matchpats pats str =
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|     (null positives || any match positives) && (null negatives || not (any match negatives))
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|     where
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|       (negatives,positives) = partition isnegativepat pats
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|       match "" = True
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|       match pat = regexMatches (abspat pat) str
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| 
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| negateprefix = "not:"
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| 
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| isnegativepat = (negateprefix `isPrefixOf`)
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| 
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| abspat pat = if isnegativepat pat then drop (length negateprefix) pat else pat
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| 
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| -- | Calculate the account tree and all account balances from a journal's
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| -- postings, returning the results for efficient lookup.
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| journalAccountInfo :: Journal -> (Tree AccountName, Map.Map AccountName Account)
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| journalAccountInfo j = (ant, amap)
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|     where
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|       (ant, psof, _, inclbalof) = (groupPostings . journalPostings) j
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|       amap = Map.fromList [(a, acctinfo a) | a <- flatten ant]
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|       acctinfo a = Account a (psof a) (inclbalof a)
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| 
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| -- | Given a list of postings, return an account name tree and three query
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| -- functions that fetch postings, subaccount-excluding-balance and
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| -- subaccount-including-balance by account name.
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| groupPostings :: [Posting] -> (Tree AccountName,
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|                              (AccountName -> [Posting]),
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|                              (AccountName -> MixedAmount),
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|                              (AccountName -> MixedAmount))
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| groupPostings ps = (ant, psof, exclbalof, inclbalof)
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|     where
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|       anames = sort $ nub $ map paccount ps
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|       ant = accountNameTreeFrom $ expandAccountNames anames
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|       allanames = flatten ant
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|       pmap = Map.union (postingsByAccount ps) (Map.fromList [(a,[]) | a <- allanames])
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|       psof = (pmap !)
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|       balmap = Map.fromList $ flatten $ calculateBalances ant psof
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|       exclbalof = fst . (balmap !)
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|       inclbalof = snd . (balmap !)
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| 
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| -- | Add subaccount-excluding and subaccount-including balances to a tree
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| -- of account names somewhat efficiently, given a function that looks up
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| -- transactions by account name.
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| calculateBalances :: Tree AccountName -> (AccountName -> [Posting]) -> Tree (AccountName, (MixedAmount, MixedAmount))
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| calculateBalances ant psof = addbalances ant
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|     where
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|       addbalances (Node a subs) = Node (a,(bal,bal+subsbal)) subs'
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|           where
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|             bal         = sumPostings $ psof a
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|             subsbal     = sum $ map (snd . snd . root) subs'
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|             subs'       = map addbalances subs
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| 
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| -- | Convert a list of postings to a map from account name to that
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| -- account's postings.
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| postingsByAccount :: [Posting] -> Map.Map AccountName [Posting]
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| postingsByAccount ps = m'
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|     where
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|       sortedps = sortBy (comparing paccount) ps
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|       groupedps = groupBy (\p1 p2 -> paccount p1 == paccount p2) sortedps
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|       m' = Map.fromList [(paccount $ head g, g) | g <- groupedps]
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| 
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| tests_Hledger_Data_Journal = TestList [
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|  ]
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| 
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