pwncash/lib/Internal/Utils.hs

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module Internal.Utils
( compareDate
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, expandDatePat
, askDays
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, fromWeekday
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, inDaySpan
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, fmtRational
, fromGregorian'
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, resolveDaySpan
, resolveDaySpan_
, intersectDaySpan
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, liftInner
, liftExceptT
, liftExcept
, liftIOExcept
, liftIOExceptT
, combineError
, combineError_
, combineError3
, combineErrors
, mapErrors
, combineErrorM
, combineErrorM3
, combineErrorIO2
, combineErrorIO3
, combineErrorIOM2
, combineErrorIOM3
, collectErrorsIO
, mapErrorsIO
, mapErrorsPooledIO
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, showError
, acntPath2Text
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, tshow
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, lookupErr
, gregorians
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, uncurry3
, xGregToDay
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, dateMatches
, valMatches
, lookupAccount
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, lookupAccountKey
, lookupAccountType
, lookupCurrency
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, lookupCurrencyKey
, lookupCurrencyPrec
, lookupTag
, mapAdd_
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, groupKey
, groupWith
, balanceTxs
, expandTransfers
, expandTransfer
, entryPair
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, singleQuote
, keyVals
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)
where
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import Control.Monad.Error.Class
import Control.Monad.Except
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import Data.Decimal
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import Data.Time.Format.ISO8601
import GHC.Real
import Internal.Types.Main
import RIO
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import qualified RIO.List as L
import qualified RIO.Map as M
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import qualified RIO.NonEmpty as NE
import RIO.State
import qualified RIO.Text as T
import RIO.Time
import qualified RIO.Vector as V
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--------------------------------------------------------------------------------
-- intervals
expandDatePat :: DaySpan -> DatePat -> InsertExcept [Day]
expandDatePat b (Cron cp) = expandCronPat b cp
expandDatePat i (Mod mp) = return $ expandModPat mp i
expandModPat :: ModPat -> DaySpan -> [Day]
expandModPat ModPat {mpStart = s, mpBy = b, mpUnit = u, mpRepeats = r} bs =
takeWhile (<= upper) $
(`addFun` start) . (* b')
<$> maybe id (take . fromIntegral) r [0 ..]
where
(lower, upper) = fromDaySpan bs
start = maybe lower fromGregorian' s
b' = fromIntegral b
addFun = case u of
Day -> addDays
Week -> addDays . (* 7)
Month -> addGregorianMonthsClip
Year -> addGregorianYearsClip
expandCronPat :: DaySpan -> CronPat -> InsertExcept [Day]
expandCronPat b CronPat {cpYear, cpMonth, cpDay, cpWeekly} =
combineError3 yRes mRes dRes $ \ys ms ds ->
filter validWeekday $
mapMaybe (uncurry3 toDay) $
takeWhile (\((y, _), m, d) -> (y, m, d) <= (yb1, mb1, db1)) $
dropWhile (\((y, _), m, d) -> (y, m, d) < (yb0, mb0, db0)) $
[(y, m, d) | y <- (\y -> (y, isLeapYear y)) <$> ys, m <- ms, d <- ds]
where
yRes = case cpYear of
Nothing -> return [yb0 .. yb1]
Just pat -> do
ys <- expandMDYPat (fromIntegral yb0) (fromIntegral yb1) pat
return $ dropWhile (< yb0) $ fromIntegral <$> ys
mRes = expandMD 12 cpMonth
dRes = expandMD 31 cpDay
(s, e) = fromDaySpan b
(yb0, mb0, db0) = toGregorian s
(yb1, mb1, db1) = toGregorian $ addDays (-1) e
expandMD lim =
fmap (fromIntegral <$>)
. maybe (return [1 .. lim]) (expandMDYPat 1 lim)
expandW (OnDay x) = [fromEnum x]
expandW (OnDays xs) = fromEnum <$> xs
ws = maybe [] expandW cpWeekly
validWeekday = if null ws then const True else \day -> dayToWeekday day `elem` ws
toDay (y, leap) m d
| m == 2 && (not leap && d > 28 || leap && d > 29) = Nothing
| m `elem` [4, 6, 9, 11] && d > 30 = Nothing
| otherwise = Just $ fromGregorian y m d
expandMDYPat :: Natural -> Natural -> MDYPat -> InsertExcept [Natural]
expandMDYPat lower upper (Single x) = return [x | lower <= x && x <= upper]
expandMDYPat lower upper (Multi xs) = return $ dropWhile (<= lower) $ takeWhile (<= upper) xs
expandMDYPat lower upper (After x) = return [max lower x .. upper]
expandMDYPat lower upper (Before x) = return [lower .. min upper x]
expandMDYPat lower upper (Between x y) = return [max lower x .. min upper y]
expandMDYPat lower upper (Repeat RepeatPat {rpStart = s, rpBy = b, rpRepeats = r})
| b < 1 = throwError $ InsertException [PatternError s b r ZeroLength]
| otherwise = do
k <- limit r
return $ dropWhile (<= lower) $ takeWhile (<= k) [s + i * b | i <- [0 ..]]
where
limit Nothing = return upper
limit (Just n)
-- this guard not only produces the error for the user but also protects
-- from an underflow below it
| n < 1 = throwError $ InsertException [PatternError s b r ZeroRepeats]
| otherwise = return $ min (s + b * (n - 1)) upper
dayToWeekday :: Day -> Int
dayToWeekday (ModifiedJulianDay d) = mod (fromIntegral d + 2) 7
askDays
:: (MonadFinance m, MonadInsertError m)
=> DatePat
-> Maybe Interval
-> m [Day]
askDays dp i = do
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globalSpan <- askDBState csBudgetScope
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case i of
Just i' -> do
localSpan <- liftExcept $ resolveDaySpan i'
maybe (return []) expand $ intersectDaySpan globalSpan localSpan
Nothing -> expand globalSpan
where
expand = liftExcept . (`expandDatePat` dp)
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--------------------------------------------------------------------------------
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-- dates
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-- | Lame weekday converter since day of weeks aren't in dhall (yet)
fromWeekday :: Weekday -> DayOfWeek
fromWeekday Mon = Monday
fromWeekday Tue = Tuesday
fromWeekday Wed = Wednesday
fromWeekday Thu = Thursday
fromWeekday Fri = Friday
fromWeekday Sat = Saturday
fromWeekday Sun = Sunday
-- | find the next date
-- this is meant to go in a very tight loop and be very fast (hence no
-- complex date functions, most of which heavily use 'mod' and friends)
nextXGreg :: XGregorian -> XGregorian
nextXGreg XGregorian {xgYear = y, xgMonth = m, xgDay = d, xgDayOfWeek = w}
| m == 12 && d == 31 = XGregorian (y + 1) 1 1 w_
| (m == 2 && (not leap && d == 28 || (leap && d == 29)))
|| (m `elem` [4, 6, 9, 11] && d == 30)
|| (d == 31) =
XGregorian y (m + 1) 1 w_
| otherwise = XGregorian y m (d + 1) w_
where
-- don't use DayOfWeek from Data.Time since this uses mod (which uses a
-- division opcode) and thus will be slower than just checking for equality
-- and adding
w_ = if w == 6 then 0 else w + 1
leap = isLeapYear $ fromIntegral y
gregorians :: Day -> [XGregorian]
gregorians x = L.iterate nextXGreg $ XGregorian (fromIntegral y) m d w
where
(y, m, d) = toGregorian x
w = fromEnum $ dayOfWeek x
xGregToDay :: XGregorian -> Day
xGregToDay XGregorian {xgYear = y, xgMonth = m, xgDay = d} = fromGregorian (fromIntegral y) m d
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gregTup :: Gregorian -> (Integer, Int, Int)
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gregTup Gregorian {gYear, gMonth, gDay} =
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( fromIntegral gYear
, fromIntegral gMonth
, fromIntegral gDay
)
gregMTup :: GregorianM -> (Integer, Int)
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gregMTup GregorianM {gmYear, gmMonth} =
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( fromIntegral gmYear
, fromIntegral gmMonth
)
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data YMD_ = Y_ !Integer | YM_ !Integer !Int | YMD_ !Integer !Int !Int
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fromYMDMatcher :: YMDMatcher -> YMD_
fromYMDMatcher m = case m of
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Y y -> Y_ $ fromIntegral y
YM g -> uncurry YM_ $ gregMTup g
YMD g -> uncurry3 YMD_ $ gregTup g
compareDate :: DateMatcher -> Day -> Ordering
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compareDate (On md) x =
case fromYMDMatcher md of
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Y_ y' -> compare y y'
YM_ y' m' -> compare (y, m) (y', m')
YMD_ y' m' d' -> compare (y, m, d) (y', m', d')
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where
(y, m, d) = toGregorian x
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compareDate (In md offset) x = do
case fromYMDMatcher md of
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Y_ y' -> compareRange y' y
YM_ y' m' -> compareRange (toMonth y' m') $ toMonth y m
YMD_ y' m' d' ->
let s = toModifiedJulianDay $ fromGregorian y' m' d'
in compareRange s $ toModifiedJulianDay x
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where
(y, m, _) = toGregorian x
compareRange start z
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| z < start = LT
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| otherwise = if (start + fromIntegral offset - 1) < z then GT else EQ
toMonth year month = (year * 12) + fromIntegral month
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fromGregorian' :: Gregorian -> Day
fromGregorian' = uncurry3 fromGregorian . gregTup
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inDaySpan :: DaySpan -> Day -> Bool
inDaySpan bs = withinDays (fromDaySpan bs)
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withinDays :: (Day, Day) -> Day -> Bool
withinDays (d0, d1) x = d0 <= x && x < d1
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resolveDaySpan :: Interval -> InsertExcept DaySpan
resolveDaySpan i@Interval {intStart = s} =
resolveDaySpan_ (s {gYear = gYear s + 50}) i
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intersectDaySpan :: DaySpan -> DaySpan -> Maybe DaySpan
intersectDaySpan a b =
if b' > a' then Nothing else Just $ toDaySpan (a', b')
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where
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(a0, a1) = fromDaySpan a
(b0, b1) = fromDaySpan b
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a' = max a0 a1
b' = min b0 b1
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resolveDaySpan_ :: Gregorian -> Interval -> InsertExcept DaySpan
resolveDaySpan_ def Interval {intStart = s, intEnd = e} =
-- TODO the default isn't checked here :/
case fromGregorian' <$> e of
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Nothing -> return $ toDaySpan_ $ fromGregorian' def
Just e_
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| s_ < e_ -> return $ toDaySpan_ e_
| otherwise -> throwError $ InsertException [DaySpanError s e]
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where
s_ = fromGregorian' s
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toDaySpan_ end = toDaySpan (s_, end)
fromDaySpan :: DaySpan -> (Day, Day)
fromDaySpan (d, n) = (d, addDays (fromIntegral n + 1) d)
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-- ASSUME a < b
toDaySpan :: (Day, Day) -> DaySpan
toDaySpan (a, b) = (a, fromIntegral $ diffDays b a - 1)
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--------------------------------------------------------------------------------
-- matching
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valMatches :: ValMatcher -> Rational -> InsertExcept Bool
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valMatches ValMatcher {vmDen, vmSign, vmNum, vmPrec} x
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| Just d_ <- vmDen, d_ >= p = throwError $ InsertException [MatchValPrecisionError d_ p]
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| otherwise =
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return $
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checkMaybe (s ==) vmSign
&& checkMaybe (n ==) vmNum
&& checkMaybe ((d * fromIntegral p ==) . fromIntegral) vmDen
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where
(n, d) = properFraction $ abs x
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p = 10 ^ vmPrec
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s = signum x >= 0
checkMaybe = maybe True
dateMatches :: DateMatcher -> Day -> Bool
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dateMatches md = (EQ ==) . compareDate md
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liftInner :: Monad m => ExceptT e Identity a -> ExceptT e m a
liftInner = mapExceptT (return . runIdentity)
liftExceptT :: MonadError e m => ExceptT e m a -> m a
liftExceptT x = runExceptT x >>= either throwError return
liftExcept :: MonadError e m => Except e a -> m a
liftExcept = either throwError return . runExcept
liftIOExceptT :: MonadIO m => InsertExceptT m a -> m a
liftIOExceptT = fromEither <=< runExceptT
liftIOExcept :: MonadIO m => InsertExcept a -> m a
liftIOExcept = fromEither . runExcept
combineError :: MonadError InsertException m => m a -> m b -> (a -> b -> c) -> m c
combineError a b f = combineErrorM a b (\x y -> pure $ f x y)
combineError_ :: MonadError InsertException m => m a -> m b -> m ()
combineError_ a b = do
_ <- catchError a $ \e ->
throwError =<< catchError (e <$ b) (return . (e <>))
_ <- b
return ()
combineErrorM :: MonadError InsertException m => m a -> m b -> (a -> b -> m c) -> m c
combineErrorM a b f = do
a' <- catchError a $ \e ->
throwError =<< catchError (e <$ b) (return . (e <>))
f a' =<< b
combineError3 :: MonadError InsertException m => m a -> m b -> m c -> (a -> b -> c -> d) -> m d
combineError3 a b c f =
combineError (combineError a b (,)) c $ \(x, y) z -> f x y z
combineErrorM3 :: MonadError InsertException m => m a -> m b -> m c -> (a -> b -> c -> m d) -> m d
combineErrorM3 a b c f = do
combineErrorM (combineErrorM a b (curry return)) c $ \(x, y) z -> f x y z
mapErrors
:: (Traversable t, MonadError InsertException m)
=> (a -> m b)
-> t a
-> m (t b)
-- First, record number of each action. Then try each action. On first failure,
-- note it's position in the sequence, skip ahead to the untried actions,
-- collect failures and add to the first failure.
mapErrors f xs = mapM go $ enumTraversable xs
where
go (n, x) = catchError (f x) $ \e -> do
es <- fmap catMaybes $ mapM (err . f) $ drop (n + 1) $ toList xs
throwError $ foldr (<>) e es
err x = catchError (Nothing <$ x) (pure . Just)
combineErrors :: (Traversable t, MonadError InsertException m) => t (m a) -> m (t a)
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combineErrors = mapErrors id
enumTraversable :: (Num n, Traversable t) => t a -> t (n, a)
enumTraversable = snd . L.mapAccumL go 0
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where
go n x = (n + 1, (n, x))
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combineErrorIO2 :: MonadUnliftIO m => m a -> m b -> (a -> b -> c) -> m c
combineErrorIO2 a b f = combineErrorIOM2 a b (\x y -> pure $ f x y)
combineErrorIO3 :: MonadUnliftIO m => m a -> m b -> m c -> (a -> b -> c -> d) -> m d
combineErrorIO3 a b c f = combineErrorIOM3 a b c (\x y z -> pure $ f x y z)
combineErrorIOM2 :: MonadUnliftIO m => m a -> m b -> (a -> b -> m c) -> m c
combineErrorIOM2 a b f = do
a' <- catch a $ \(InsertException es) ->
(throwIO . InsertException)
=<< catch (es <$ b) (\(InsertException es') -> return (es' ++ es))
f a' =<< b
combineErrorIOM3 :: MonadUnliftIO m => m a -> m b -> m c -> (a -> b -> c -> m d) -> m d
combineErrorIOM3 a b c f =
combineErrorIOM2 (combineErrorIOM2 a b (curry return)) c $ \(x, y) z -> f x y z
mapErrorsPooledIO :: (Traversable t, MonadUnliftIO m) => Int -> (a -> m b) -> t a -> m (t b)
mapErrorsPooledIO t f xs = pooledMapConcurrentlyN t go $ enumTraversable xs
where
go (n, x) = catch (f x) $ \(InsertException e) -> do
es <- fmap catMaybes $ mapM (err . f) $ drop (n + 1) $ toList xs
throwIO $ InsertException $ foldr (<>) e es
err x = catch (Nothing <$ x) $ \(InsertException es) -> pure $ Just es
mapErrorsIO :: (Traversable t, MonadUnliftIO m) => (a -> m b) -> t a -> m (t b)
mapErrorsIO f xs = mapM go $ enumTraversable xs
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where
go (n, x) = catch (f x) $ \(InsertException e) -> do
es <- fmap catMaybes $ mapM (err . f) $ drop (n + 1) $ toList xs
throwIO $ InsertException $ foldr (<>) e es
err x = catch (Nothing <$ x) $ \(InsertException es) -> pure $ Just es
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collectErrorsIO :: (Traversable t, MonadUnliftIO m) => t (m a) -> m (t a)
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collectErrorsIO = mapErrorsIO id
lookupErr :: (Ord k, Show k) => LookupSuberr -> k -> M.Map k v -> InsertExcept v
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lookupErr what k m = case M.lookup k m of
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Just x -> return x
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_ -> throwError $ InsertException [LookupError what $ tshow k]
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fmtRational :: Natural -> Rational -> T.Text
fmtRational precision x = T.concat [s, txt n', ".", pad 2 "0" $ txt d']
where
s = if x >= 0 then "" else "-"
x'@(n :% d) = abs x
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p = 10 ^ precision
n' = div n d
d' = (\(a :% b) -> div a b) ((x' - fromIntegral n') * p)
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txt = T.pack . show
pad i c z = T.append (T.replicate (i - T.length z) c) z
acntPath2Text :: AcntPath -> T.Text
acntPath2Text (AcntPath t cs) = T.intercalate "/" (atName t : cs)
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--------------------------------------------------------------------------------
-- error display
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showError :: InsertError -> [T.Text]
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showError other = case other of
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(StatementError ts ms) -> (tshowx <$> ts) ++ (showMatch <$> ms)
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(DaySpanError a b) ->
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[T.unwords ["Could not create bounds from", showGregorian_ a, "and", showGreg b]]
where
showGreg (Just g) = showGregorian_ g
showGreg Nothing = "Inf"
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(AccountError a ts) ->
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[ T.unwords
[ "account type of key"
, singleQuote a
, "is not one of:"
, ts_
]
]
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where
ts_ = T.intercalate ", " $ NE.toList $ fmap atName ts
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(PatternError s b r p) -> [T.unwords [msg, "in pattern: ", pat]]
where
pat =
keyVals $
[ (k, v)
| (k, Just v) <-
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[ ("start", Just $ tshow s)
, ("by", Just $ tshow b)
, ("repeats", tshow <$> r)
]
]
msg = case p of
ZeroLength -> "Zero repeat length"
ZeroRepeats -> "Zero repeats"
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(RegexError re) -> [T.append "could not make regex from pattern: " re]
(ConversionError x) -> [T.append "Could not convert to rational number: " x]
(InsertIOError msg) -> [T.append "IO Error: " msg]
(ParseError msg) -> [T.append "Parse Error: " msg]
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(MatchValPrecisionError d p) ->
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[T.unwords ["Match denominator", tshow d, "must be less than", tshow p]]
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(LookupError t f) ->
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[T.unwords ["Could not find field", f, "when resolving", what]]
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where
what = case t of
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EntryIDField st -> T.unwords ["entry", idName st, "ID"]
EntryValField -> "entry value"
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MatchField mt -> T.unwords [matchName mt, "match"]
DBKey st -> T.unwords ["database", idName st, "ID key"]
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-- TODO this should be its own function
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idName AcntField = "account"
idName CurField = "currency"
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idName TagField = "tag"
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matchName MatchNumeric = "numeric"
matchName MatchText = "text"
(IncomeError day name balance) ->
[ T.unwords
[ "Income allocations for budget"
, singleQuote name
, "exceed total on day"
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, tshow day
, "where balance is"
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, tshow (fromRational balance :: Double)
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]
]
(PeriodError start next) ->
[ T.unwords
[ "First pay period on "
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, singleQuote $ tshow start
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, "must start before first income payment on "
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, singleQuote $ tshow next
]
]
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(IndexError Entry {eValue = LinkedNumGetter {lngIndex}, eAcnt} day) ->
[ T.unwords
[ "No credit entry for index"
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, singleQuote $ tshow lngIndex
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, "for entry with account"
, singleQuote eAcnt
, "on"
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, tshow day
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]
]
(RoundError cur) ->
[ T.unwords
[ "Could not look up precision for currency"
, singleQuote cur
]
]
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showGregorian_ :: Gregorian -> T.Text
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showGregorian_ Gregorian {gYear, gMonth, gDay} = T.intercalate "-" $ tshow <$> [gYear, gMonth, gDay]
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tshowx :: TxRecord -> T.Text
tshowx TxRecord {trDate = d, trAmount = v, trDesc = e, trFile = f} =
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T.append "Unmatched transaction: " $
keyVals
[ ("path", T.pack f)
, ("date", T.pack $ iso8601Show d)
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, ("value", tshow v)
, ("description", doubleQuote e)
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]
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showMatch :: MatchRe -> T.Text
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showMatch StatementParser {spDate, spVal, spDesc, spOther, spTimes, spPriority} =
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T.append "Unused match: " $ keyVals [(x, y) | (x, Just y) <- kvs]
where
kvs =
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[ ("date", showDateMatcher <$> spDate)
, ("val", showValMatcher spVal)
, ("desc", fst <$> spDesc)
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, ("other", others)
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, ("counter", Just $ maybe "Inf" tshow spTimes)
, ("priority", Just $ tshow spPriority)
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]
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others = case spOther of
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[] -> Nothing
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xs -> Just $ singleQuote $ T.concat $ showMatchOther <$> xs
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-- | Convert match date to text
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-- Single date matches will just show the single date, and ranged matches will
-- show an interval like [YY-MM-DD, YY-MM-DD)
showDateMatcher :: DateMatcher -> T.Text
showDateMatcher md = case md of
(On x) -> showYMDMatcher x
(In start n) -> T.concat ["[", showYMDMatcher start, " ", showYMD_ end, ")"]
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where
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-- TODO not DRY (this shifting thing happens during the comparison
-- function (kinda)
end = case fromYMDMatcher start of
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Y_ y -> Y_ $ y + fromIntegral n
YM_ y m ->
let (y_, m_) = divMod (m + fromIntegral n - 1) 12
in YM_ (y + fromIntegral y_) (m + m_ + 1)
YMD_ y m d ->
uncurry3 YMD_ $
toGregorian $
addDays (fromIntegral n) $
fromGregorian y m d
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-- | convert YMD match to text
showYMDMatcher :: YMDMatcher -> T.Text
showYMDMatcher = showYMD_ . fromYMDMatcher
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showYMD_ :: YMD_ -> T.Text
showYMD_ md =
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T.intercalate "-" $ L.take 3 (fmap tshow digits ++ L.repeat "*")
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where
digits = case md of
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Y_ y -> [fromIntegral y]
YM_ y m -> [fromIntegral y, m]
YMD_ y m d -> [fromIntegral y, m, d]
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showValMatcher :: ValMatcher -> Maybe T.Text
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showValMatcher ValMatcher {vmSign = Nothing, vmNum = Nothing, vmDen = Nothing} = Nothing
showValMatcher ValMatcher {vmNum, vmDen, vmSign, vmPrec} =
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Just $ singleQuote $ keyVals [(k, v) | (k, Just v) <- kvs]
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where
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kvs =
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[ ("sign", (\s -> if s then "+" else "-") <$> vmSign)
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, ("numerator", tshow <$> vmNum)
, ("denominator", tshow <$> vmDen)
, ("precision", Just $ tshow vmPrec)
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]
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showMatchOther :: FieldMatcherRe -> T.Text
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showMatchOther (Desc (Field f (re, _))) =
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T.unwords ["desc field", singleQuote f, "with re", singleQuote re]
showMatchOther (Val (Field f mv)) =
T.unwords
[ "val field"
, singleQuote f
, "with match value"
, singleQuote $ fromMaybe "*" $ showValMatcher mv
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]
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singleQuote :: T.Text -> T.Text
singleQuote t = T.concat ["'", t, "'"]
doubleQuote :: T.Text -> T.Text
doubleQuote t = T.concat ["'", t, "'"]
keyVal :: T.Text -> T.Text -> T.Text
keyVal a b = T.concat [a, "=", b]
keyVals :: [(T.Text, T.Text)] -> T.Text
keyVals = T.intercalate "; " . fmap (uncurry keyVal)
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--------------------------------------------------------------------------------
-- random functions
groupKey :: Ord c => (a -> c) -> [(a, b)] -> [(a, NonEmpty b)]
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groupKey f = fmap go . NE.groupAllWith (f . fst)
where
go xs@((c, _) :| _) = (c, fmap snd xs)
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groupWith :: Ord b => (a -> b) -> [a] -> [(b, [a])]
groupWith f = fmap go . NE.groupAllWith fst . fmap (\x -> (f x, x))
where
go xs@((c, _) :| _) = (c, NE.toList $ fmap snd xs)
mapAdd_ :: (Ord k, Num v) => k -> v -> M.Map k v -> M.Map k v
mapAdd_ k v = M.alter (maybe (Just v) (Just . (+ v))) k
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uncurry3 :: (a -> b -> c -> d) -> (a, b, c) -> d
uncurry3 f (a, b, c) = f a b c
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lookupAccount :: (MonadInsertError m, MonadFinance m) => AcntID -> m (AccountRId, AcntType)
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lookupAccount = lookupFinance AcntField csAccountMap
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lookupAccountKey :: (MonadInsertError m, MonadFinance m) => AcntID -> m AccountRId
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lookupAccountKey = fmap fst . lookupAccount
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lookupAccountType :: (MonadInsertError m, MonadFinance m) => AcntID -> m AcntType
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lookupAccountType = fmap snd . lookupAccount
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lookupCurrency :: (MonadInsertError m, MonadFinance m) => CurID -> m CurrencyPrec
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lookupCurrency = lookupFinance CurField csCurrencyMap
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lookupCurrencyKey :: (MonadInsertError m, MonadFinance m) => AcntID -> m CurrencyRId
lookupCurrencyKey = fmap cpID . lookupCurrency
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lookupCurrencyPrec :: (MonadInsertError m, MonadFinance m) => AcntID -> m Precision
lookupCurrencyPrec = fmap cpPrec . lookupCurrency
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lookupTag :: (MonadInsertError m, MonadFinance m) => TagID -> m TagRId
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lookupTag = lookupFinance TagField csTagMap
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lookupFinance
:: (MonadInsertError m, MonadFinance m)
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=> EntryIDType
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-> (ConfigState -> M.Map T.Text a)
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-> T.Text
-> m a
lookupFinance t f c = (liftExcept . lookupErr (DBKey t) c) =<< askDBState f
balanceTxs
:: (MonadInsertError m, MonadFinance m)
=> [EntryBin]
-> m ([UEBalanced], [InsertTx])
balanceTxs ebs =
first concat . partitionEithers . catMaybes
<$> evalStateT (mapErrors go $ L.sortOn binDate ebs) M.empty
where
go (ToUpdate utx) =
fmap (Just . Left) $
liftInnerS $
either rebalanceTotalEntrySet rebalanceFullEntrySet utx
go (ToRead ReadEntry {reCurrency, reAcnt, reValue, reBudget}) = do
modify $ mapAdd_ (reAcnt, (reCurrency, reBudget)) reValue
return Nothing
go (ToInsert Tx {txPrimary, txOther, txDescr, txCommit, txDate, txBudget, txPriority}) = do
e <- either (balancePrimaryEntrySet txBudget) (balanceSecondaryEntrySet txBudget) txPrimary
let tot = sum $ fmap (eValue . ieEntry) $ NE.toList $ iesFromEntries e
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es <- mapErrors (goOther tot) txOther
let tx =
-- TODO this is lame
InsertTx
{ itxDescr = txDescr
, itxDate = txDate
, itxEntrySets = e :| es
, itxCommit = txCommit
, itxBudget = txBudget
, itxPriority = txPriority
}
return $ Just $ Right tx
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where
goOther tot =
either
(balanceSecondaryEntrySet txBudget)
(balancePrimaryEntrySet txBudget . fromShadow tot)
fromShadow tot e@EntrySet {esTotalValue} = e {esTotalValue = tot *. esTotalValue}
binDate :: EntryBin -> (Day, Int)
binDate (ToRead ReadEntry {reDate, rePriority}) = (reDate, rePriority)
binDate (ToInsert Tx {txDate, txPriority}) = (txDate, txPriority)
binDate (ToUpdate u) = either go go u
where
go UpdateEntrySet {utDate, utPriority} = (utDate, utPriority)
type BCKey = (CurrencyRId, Text)
type ABCKey = (AccountRId, BCKey)
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type EntryBals = M.Map ABCKey Decimal
--------------------------------------------------------------------------------
-- rebalancing
-- TODO make sure new values are rounded properly here
rebalanceTotalEntrySet :: TotalUpdateEntrySet -> State EntryBals [UEBalanced]
rebalanceTotalEntrySet
UpdateEntrySet
{ utFrom0 = (f0@UpdateEntry {ueAcnt = f0Acnt}, f0links)
, utTo0
, utFromUnk
, utToUnk
, utFromRO
, utToRO
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, utCurrency
, utTotalValue
, utBudget
} =
do
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(fval, fs, tpairs) <- rebalanceDebit bc utFromRO utFromUnk
let f0val = utTotalValue - fval
modify $ mapAdd_ (f0Acnt, bc) f0val
let tsLinked = tpairs ++ (unlink f0val <$> f0links)
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ts <- rebalanceCredit bc utTotalValue utTo0 utToUnk utToRO tsLinked
return (f0 {ueValue = StaticValue f0val} : fs ++ ts)
where
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bc = (utCurrency, utBudget)
rebalanceFullEntrySet :: FullUpdateEntrySet -> State EntryBals [UEBalanced]
rebalanceFullEntrySet
UpdateEntrySet
{ utFrom0
, utTo0
, utFromUnk
, utToUnk
, utFromRO
, utToRO
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, utCurrency
, utBudget
} =
do
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(ftot, fs, tpairs) <- rebalanceDebit bc rs ls
ts <- rebalanceCredit bc ftot utTo0 utToUnk utToRO tpairs
return (fs ++ ts)
where
(rs, ls) = case utFrom0 of
Left x -> (x : utFromRO, utFromUnk)
Right x -> (utFromRO, x : utFromUnk)
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bc = (utCurrency, utBudget)
rebalanceDebit
:: BCKey
-> [UE_RO]
-> [(UEUnk, [UELink])]
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-> State EntryBals (Decimal, [UEBalanced], [UEBalanced])
rebalanceDebit k ro linked = do
(tot, (tpairs, fs)) <-
fmap (second (partitionEithers . concat)) $
sumM goFrom $
L.sortOn idx $
(Left <$> ro) ++ (Right <$> linked)
return (tot, fs, tpairs)
where
idx = either ueIndex (ueIndex . fst)
goFrom (Left e) = (,[]) <$> updateFixed k e
goFrom (Right (e0, es)) = do
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v <- updateUnknown k e0
let e0' = Right $ e0 {ueValue = StaticValue v}
let es' = Left . unlink v <$> es
return (v, e0' : es')
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unlink :: Decimal -> UELink -> UEBalanced
unlink v e = e {ueValue = StaticValue $ (-v) * unLinkScale (ueValue e)}
rebalanceCredit
:: BCKey
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-> Decimal
-> UEBlank
-> [UEUnk]
-> [UE_RO]
-> [UEBalanced]
-> State EntryBals [UEBalanced]
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rebalanceCredit k tot t0 us rs bs = do
(tval, ts) <-
fmap (second catMaybes) $
sumM goTo $
L.sortOn idx $
(UETLinked <$> bs)
++ (UETUnk <$> us)
++ (UETReadOnly <$> rs)
return (t0 {ueValue = StaticValue (-(tot + tval))} : ts)
where
idx = projectUET ueIndex ueIndex ueIndex
goTo (UETReadOnly e) = (,Nothing) <$> updateFixed k e
goTo (UETLinked e) = (,Just e) <$> updateFixed k e
goTo (UETUnk e) = do
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v <- updateUnknown k e
return (v, Just $ e {ueValue = StaticValue v})
data UpdateEntryType a b
= UETReadOnly UE_RO
| UETUnk a
| UETLinked b
projectUET :: (UE_RO -> c) -> (a -> c) -> (b -> c) -> UpdateEntryType a b -> c
projectUET f _ _ (UETReadOnly e) = f e
projectUET _ f _ (UETUnk e) = f e
projectUET _ _ f (UETLinked p) = f p
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updateFixed :: BCKey -> UpdateEntry i StaticValue -> State EntryBals Decimal
updateFixed k e = do
let v = unStaticValue $ ueValue e
modify $ mapAdd_ (ueAcnt e, k) v
return v
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updateUnknown :: BCKey -> UpdateEntry i EntryValueUnk -> State EntryBals Decimal
updateUnknown k e = do
let key = (ueAcnt e, k)
curBal <- gets (M.findWithDefault 0 key)
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let v = case ueValue e of
EVPercent p -> curBal *. p
EVBalance p -> p - curBal
modify $ mapAdd_ key v
return v
--------------------------------------------------------------------------------
-- balancing
balancePrimaryEntrySet
:: (MonadInsertError m, MonadFinance m)
=> T.Text
-> PrimaryEntrySet
-> StateT EntryBals m InsertEntrySet
balancePrimaryEntrySet
budgetName
EntrySet
{ esFrom = HalfEntrySet {hesPrimary = f0, hesOther = fs}
, esTo = HalfEntrySet {hesPrimary = t0, hesOther = ts}
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, esCurrency
, esTotalValue
} =
do
let f0res = resolveAcntAndTags f0
let t0res = resolveAcntAndTags t0
let fsres = mapErrors resolveAcntAndTags fs
let tsres = mapErrors resolveAcntAndTags ts
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let bc = (esCurrency, budgetName)
combineErrorM (combineError f0res fsres (,)) (combineError t0res tsres (,)) $
\(f0', fs') (t0', ts') -> do
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let balFrom = fmap liftInnerS . balanceDeferred
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fs'' <- balanceTotalEntrySet balFrom bc esTotalValue f0' fs'
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balanceFinal bc (-esTotalValue) fs'' t0' ts'
balanceSecondaryEntrySet
:: (MonadInsertError m, MonadFinance m)
=> T.Text
-> SecondayEntrySet
-> StateT EntryBals m InsertEntrySet
balanceSecondaryEntrySet
budgetName
EntrySet
{ esFrom = HalfEntrySet {hesPrimary = f0, hesOther = fs}
, esTo = HalfEntrySet {hesPrimary = t0, hesOther = ts}
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, esCurrency
} =
do
let fsRes = mapErrors resolveAcntAndTags (f0 :| fs)
let t0Res = resolveAcntAndTags t0
let tsRes = mapErrors resolveAcntAndTags ts
combineErrorM fsRes (combineError t0Res tsRes (,)) $ \fs' (t0', ts') -> do
fs'' <- mapErrors balFrom fs'
let tot = entrySum (NE.toList fs'')
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balanceFinal bc (-tot) fs'' t0' ts'
where
entrySum = sum . fmap (eValue . ieEntry)
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balFrom = balanceEntry (fmap liftInnerS . balanceDeferred) bc
bc = (esCurrency, budgetName)
balanceFinal
:: (MonadInsertError m)
=> BCKey
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-> Decimal
-> NonEmpty InsertEntry
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-> Entry AccountRId () TagRId
-> [Entry AccountRId LinkDeferred TagRId]
-> StateT EntryBals m InsertEntrySet
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balanceFinal k@(curID, _) tot fs t0 ts = do
let fv = V.fromList $ NE.toList $ fmap (eValue . ieEntry) fs
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let balTo = balanceLinked fv
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ts' <- balanceTotalEntrySet balTo k tot t0 ts
return $
InsertEntrySet
{ iesCurrency = curID
, iesFromEntries = fs
, iesToEntries = ts'
}
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balanceTotalEntrySet
:: (MonadInsertError m)
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=> (ABCKey -> v -> StateT EntryBals m (Decimal, Maybe DBDeferred))
-> BCKey
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-> Decimal
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-> Entry AccountRId () TagRId
-> [Entry AccountRId v TagRId]
-> StateT EntryBals m (NonEmpty InsertEntry)
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balanceTotalEntrySet f k tot e@Entry {eAcnt = acntID} es = do
es' <- mapErrors (balanceEntry f k) es
let e0val = tot - entrySum es'
-- TODO not dry
modify (mapAdd_ (acntID, k) e0val)
let e' =
InsertEntry
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{ ieEntry = e {eValue = e0val, eAcnt = acntID}
, ieDeferred = Nothing
}
return $ e' :| es'
where
entrySum = sum . fmap (eValue . ieEntry)
liftInnerS :: Monad m => StateT e Identity a -> StateT e m a
liftInnerS = mapStateT (return . runIdentity)
balanceLinked
:: MonadInsertError m
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=> Vector Decimal
-> ABCKey
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-> LinkDeferred
-> StateT EntryBals m (Decimal, Maybe DBDeferred)
balanceLinked from k lg = case lg of
(LinkIndex LinkedNumGetter {lngIndex, lngScale}) -> do
let res = fmap (go lngScale) $ from V.!? fromIntegral lngIndex
case res of
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Just v -> return (v, Just $ DBEntryLinked lngIndex lngScale)
-- TODO this error would be much more informative if I had access to the
-- file from which it came
Nothing -> throwError undefined
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(LinkDeferred d) -> liftInnerS $ balanceDeferred k d
where
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go s = negate . (*. s)
balanceDeferred :: ABCKey -> EntryValue -> State EntryBals (Decimal, Maybe DBDeferred)
balanceDeferred k e = do
newval <- findBalance k e
let d = case e of
EntryFixed _ -> Nothing
EntryBalance v -> Just $ DBEntryBalance v
EntryPercent v -> Just $ DBEntryPercent v
return (newval, d)
balanceEntry
:: (MonadInsertError m)
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=> (ABCKey -> v -> StateT EntryBals m (Decimal, Maybe DBDeferred))
-> BCKey
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-> Entry AccountRId v TagRId
-> StateT EntryBals m InsertEntry
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balanceEntry f k e@Entry {eValue, eAcnt = acntID} = do
(newVal, deferred) <- f (acntID, k) eValue
modify (mapAdd_ (acntID, k) newVal)
return $
InsertEntry
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{ ieEntry = e {eValue = newVal, eAcnt = acntID}
, ieDeferred = deferred
}
resolveAcntAndTags
:: (MonadInsertError m, MonadFinance m)
=> Entry AcntID v TagID
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-> m (Entry AccountRId v TagRId)
resolveAcntAndTags e@Entry {eAcnt, eTags} = do
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let acntRes = lookupAccountKey eAcnt
let tagRes = mapErrors lookupTag eTags
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combineError acntRes tagRes $ \a ts -> e {eAcnt = a, eTags = ts}
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findBalance :: ABCKey -> EntryValue -> State EntryBals Decimal
findBalance k e = do
curBal <- gets (M.findWithDefault 0 k)
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return $ case e of
EntryBalance b -> b - curBal
EntryPercent p -> curBal *. p
EntryFixed v -> v
--------------------------------------------------------------------------------
-- transfers
expandTransfers
:: (MonadInsertError m, MonadFinance m)
=> CommitR
-> T.Text
-> DaySpan
-> [PairedTransfer]
-> m [Tx CommitR]
expandTransfers tc name bounds = fmap concat . mapErrors (expandTransfer tc name bounds)
expandTransfer
:: (MonadInsertError m, MonadFinance m)
=> CommitR
-> T.Text
-> DaySpan
-> PairedTransfer
-> m [Tx CommitR]
expandTransfer tc name bounds Transfer {transAmounts, transTo, transCurrency, transFrom} = do
txs <- mapErrors go transAmounts
return $ concat txs
where
go
Amount
{ amtWhen = pat
, amtValue = TransferValue {tvVal = v, tvType = t}
, amtDesc = desc
, amtPriority = pri
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} = do
cp <- lookupCurrency transCurrency
let v' = (-v)
let dec = realFracToDecimal (cpPrec cp) v'
let v'' = case t of
TFixed -> EntryFixed dec
TPercent -> EntryPercent v'
TBalance -> EntryBalance dec
withDates bounds pat $ \day ->
return
Tx
{ txCommit = tc
, txDate = day
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, txPrimary = Right $ entryPair transFrom transTo (cpID cp) desc () v''
, txOther = []
, txDescr = desc
, txBudget = name
, txPriority = fromIntegral pri
}
entryPair
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:: TaggedAcnt
-> TaggedAcnt
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-> CurrencyRId
-> T.Text
-> v0
-> v1
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-> EntrySet v0 v1 v2 v3
entryPair (TaggedAcnt fa fts) (TaggedAcnt ta tts) curid com totval val1 =
EntrySet
{ esCurrency = curid
, esTotalValue = totval
, esFrom = halfEntry fa fts val1
, esTo = halfEntry ta tts ()
}
where
halfEntry :: AcntID -> [TagID] -> v -> HalfEntrySet v v0
halfEntry a ts v =
HalfEntrySet
{ hesPrimary = Entry {eAcnt = a, eValue = v, eComment = com, eTags = ts}
, hesOther = []
}
withDates
:: (MonadFinance m, MonadInsertError m)
=> DaySpan
-> DatePat
-> (Day -> m a)
-> m [a]
withDates bounds dp f = do
days <- liftExcept $ expandDatePat bounds dp
combineErrors $ fmap f days
sumM :: (Monad m, Num s) => (a -> m (s, b)) -> [a] -> m (s, [b])
sumM f = mapAccumM (\s -> fmap (first (+ s)) . f) 0
mapAccumM :: (Monad m) => (s -> a -> m (s, b)) -> s -> [a] -> m (s, [b])
mapAccumM f s = foldM (\(s', ys) -> fmap (second (: ys)) . f s') (s, [])