128 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			128 lines
		
	
	
		
			5.7 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
| {-|
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| 
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| A 'RawLedger' is a parsed ledger file. We call it raw to distinguish from
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| the cached 'Ledger'.
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| 
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| -}
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| 
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| module Ledger.RawLedger
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| where
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| import qualified Data.Map as Map
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| import Ledger.Utils
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| import Ledger.Types
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| import Ledger.AccountName
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| import Ledger.Amount
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| import Ledger.Entry
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| import Ledger.Transaction
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| import Ledger.RawTransaction
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| 
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| 
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| instance Show RawLedger where
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|     show l = printf "RawLedger with %d entries, %d accounts: %s"
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|              ((length $ entries l) +
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|               (length $ modifier_entries l) +
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|               (length $ periodic_entries l))
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|              (length accounts)
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|              (show accounts)
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|              -- ++ (show $ rawLedgerTransactions l)
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|              where accounts = flatten $ rawLedgerAccountNameTree l
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| 
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| rawLedgerTransactions :: RawLedger -> [Transaction]
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| rawLedgerTransactions = txnsof . entries
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|     where txnsof es = concat $ map flattenEntry $ zip es [1..]
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| 
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| rawLedgerAccountNamesUsed :: RawLedger -> [AccountName]
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| rawLedgerAccountNamesUsed = accountNamesFromTransactions . rawLedgerTransactions
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| 
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| rawLedgerAccountNames :: RawLedger -> [AccountName]
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| rawLedgerAccountNames = sort . expandAccountNames . rawLedgerAccountNamesUsed
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| 
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| rawLedgerAccountNameTree :: RawLedger -> Tree AccountName
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| rawLedgerAccountNameTree l = accountNameTreeFrom $ rawLedgerAccountNames l
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| 
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| -- | Remove ledger entries we are not interested in.
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| -- Keep only those which fall between the begin and end dates, and match
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| -- the description pattern, and are cleared or real if those options are active.
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| filterRawLedger :: Maybe Day -> Maybe Day -> [String] -> Bool -> Bool -> RawLedger -> RawLedger
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| filterRawLedger begin end pats clearedonly realonly = 
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|     filterRawLedgerTransactionsByRealness realonly .
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|     filterRawLedgerEntriesByClearedStatus clearedonly .
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|     filterRawLedgerEntriesByDate begin end .
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|     filterRawLedgerEntriesByDescription pats
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| 
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| -- | Keep only entries whose description matches the description patterns.
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| filterRawLedgerEntriesByDescription :: [String] -> RawLedger -> RawLedger
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| filterRawLedgerEntriesByDescription pats (RawLedger ms ps es f) = 
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|     RawLedger ms ps (filter matchdesc es) f
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|     where matchdesc = matchpats pats . edescription
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| 
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| -- | Keep only entries which fall between begin and end dates. 
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| -- We include entries on the begin date and exclude entries on the end
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| -- date, like ledger.  An empty date string means no restriction.
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| filterRawLedgerEntriesByDate :: Maybe Day -> Maybe Day -> RawLedger -> RawLedger
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| filterRawLedgerEntriesByDate begin end (RawLedger ms ps es f) = 
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|     RawLedger ms ps (filter matchdate es) f
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|     where 
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|       matchdate e = (maybe True (edate e>=) begin) && (maybe True (edate e<) end)
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| 
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| -- | Keep only entries with cleared status, if the flag is true, otherwise
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| -- do no filtering.
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| filterRawLedgerEntriesByClearedStatus :: Bool -> RawLedger -> RawLedger
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| filterRawLedgerEntriesByClearedStatus False l = l
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| filterRawLedgerEntriesByClearedStatus True  (RawLedger ms ps es f) =
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|     RawLedger ms ps (filter estatus es) f
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| 
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| -- | Strip out any virtual transactions, if the flag is true, otherwise do
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| -- no filtering.
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| filterRawLedgerTransactionsByRealness :: Bool -> RawLedger -> RawLedger
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| filterRawLedgerTransactionsByRealness False l = l
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| filterRawLedgerTransactionsByRealness True (RawLedger ms ps es f) =
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|     RawLedger ms ps (map filtertxns es) f
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|     where filtertxns e@Entry{etransactions=ts} = e{etransactions=filter isReal ts}
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| 
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| -- | Keep only entries which affect accounts matched by the account patterns.
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| filterRawLedgerEntriesByAccount :: [String] -> RawLedger -> RawLedger
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| filterRawLedgerEntriesByAccount apats (RawLedger ms ps es f) =
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|     RawLedger ms ps (filter (any (matchpats apats . taccount) . etransactions) es) f
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| 
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| -- | Give all a ledger's amounts their canonical display settings.  That
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| -- is, in each commodity, amounts will use the display settings of the
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| -- first amount detected, and the greatest precision of the amounts
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| -- detected. Also, amounts are converted to cost basis if that flag is
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| -- active.
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| canonicaliseAmounts :: Bool -> RawLedger -> RawLedger
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| canonicaliseAmounts costbasis l@(RawLedger ms ps es f) = RawLedger ms ps (map fixEntryAmounts es) f
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|     where 
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|       fixEntryAmounts (Entry d s c de co ts pr) = Entry d s c de co (map fixRawTransactionAmounts ts) pr
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|       fixRawTransactionAmounts (RawTransaction ac a c t) = RawTransaction ac (fixMixedAmount a) c t
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|       fixMixedAmount (Mixed as) = Mixed $ map fixAmount as
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|       fixAmount | costbasis = fixcommodity . costOfAmount
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|                 | otherwise = fixcommodity
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|       fixcommodity a = a{commodity=canonicalcommodity $ commodity a}
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|       canonicalcommodity c = (firstoccurrenceof c){precision=maxprecision c}
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|           where
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|             firstoccurrenceof c = head $ rawLedgerCommoditiesWithSymbol l (symbol c)
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|             maxprecision c = maximum $ map precision $ rawLedgerCommoditiesWithSymbol l (symbol c)
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| 
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| -- | Get all amount commodities with a given symbol, in the order parsed.
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| -- Must be called with a good symbol or it will fail.
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| rawLedgerCommoditiesWithSymbol :: RawLedger -> String -> [Commodity]
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| rawLedgerCommoditiesWithSymbol l s = 
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|     fromMaybe (error $ "no such commodity "++s) (Map.lookup s map)
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|     where
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|       map = Map.fromList [(symbol $ head cs,cs) | cs <- groupBy same $ rawLedgerCommodities l]
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|       same c1 c2 = symbol c1 == symbol c2
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| 
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| -- | Get just the ammount commodities from a ledger, in the order parsed.
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| rawLedgerCommodities :: RawLedger -> [Commodity]
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| rawLedgerCommodities = map commodity . concatMap amounts . rawLedgerAmounts
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| 
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| -- | Get just the amounts from a ledger, in the order parsed.
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| rawLedgerAmounts :: RawLedger -> [MixedAmount]
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| rawLedgerAmounts = map amount . rawLedgerTransactions
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| 
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| -- | Get just the amount precisions from a ledger, in the order parsed.
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| rawLedgerPrecisions :: RawLedger -> [Int]
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| rawLedgerPrecisions = map precision . rawLedgerCommodities
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| 
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