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#12 compiles, but untested

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This commit is contained in:
Nicole Dresselhaus 2022-08-04 05:25:46 +02:00
parent fcf8c26137
commit 16b4eb83e1
7 changed files with 233 additions and 89 deletions
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14
ibhelper.cabal
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@ -78,7 +78,18 @@ library
TypeSynonymInstances
ViewPatterns
DuplicateRecordFields
ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wpartial-fields -Wredundant-constraints -static -dynamic-too
ghc-options:
-Wall
-Wcompat
-Widentities
-Wincomplete-record-updates
-Wincomplete-uni-patterns
-Wpartial-fields
-Wredundant-constraints
-Wderiving-defaults
-Wmissing-deriving-strategies
-static
-dynamic-too
-- include-dirs:
-- deps/dear-implot.hs/implot
-- deps/dear-imgui.hs/imgui
@ -109,6 +120,7 @@ library
, time
, type-iso
, unordered-containers
, vector
default-language: Haskell2010
executable ibhelper-exe

8
src/AppFiller.hs
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@ -37,11 +37,11 @@ appFiller app = runRIO app $ withRunInIO $ \run -> do
$ unless (L.null as)
$ switchAccountTo $ L.head as
(Msg_IB_IN (IB_NextValidID i)) -> atomically $ modifyTVar' (nextValidID currentAppData) (const (Just i))
(Msg_IB_IN (IB_ErrorMsg i c m)) -> debugMsg "IB_ErrorMsg not implemented"
(Msg_IB_IN (IB_ErrorMsg _i _c _m)) -> debugMsg "IB_ErrorMsg not implemented"
(Msg_IB_IN (IB_AccountValue k v c n)) -> do
let action = HM.update (\ai -> Just $ ai & accountInfo . accountProperties %~ HM.alter (\old -> Just $ (v,c):filter ((/=c) . snd) (fromMaybe [] old)) k) n
atomically $ modifyTVar' (Types.accounts currentAppData) action
(Msg_IB_IN (IB_AccountUpdateTime t)) -> debugMsg "IB_AccountUpdateTime not implemented"
(Msg_IB_IN (IB_AccountUpdateTime _t)) -> debugMsg "IB_AccountUpdateTime not implemented"
-- (Msg_IB_IN (IB_AccountUpdateTime t)) -> do
-- let action = HM.update (\ai -> Just $ ai & accountInfo . accountLastUpdate %~ const t) n
-- atomically $ modifyTVar' (Types.accounts currentAppData) action
@ -72,8 +72,8 @@ handleTickPrice IB_TickPrice{..} = do
chartVar <- (HM.!s) <$> liftIO (readTVarIO charts)
case tickType of
IBTickType_Last_Price -> do
t <- utctDayTime <$> liftIO getCurrentTime
let cp = ChartPoint (TimePoint $ fromInteger. (`div` 1000000000000) . diffTimeToPicoseconds $ t) price size []
t <- utcTimeToSeconds <$> liftIO getCurrentTime
let cp = ChartPoint (TimePoint t) price (fromIntegral size) []
liftIO $ atomically $ modifyTVar chartVar (\c@Chart{..} -> c { chartData = chartData |> cp, chartDirty = True})
_ -> return ()
handleTickPrice _ = error "impossible"

167
src/Chart.hs
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@ -3,32 +3,33 @@
{-# LANGUAGE DerivingVia #-}
{-# LANGUAGE TupleSections #-}
{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
module Chart (newChart, FillerException(..), getUpdatedChartCache) where
module Chart (newChart, FillerException(..), getUpdatedChartCache, getChunkedDay) where
import Import
import Data.Aeson (eitherDecodeFileStrict')
import RIO.List
import RIO.List.Partial
import RIO.FilePath
import Data.Time.Calendar (Day(..))
import Data.FingerTree (FingerTree)
import Control.Concurrent (forkIO)
import Control.Monad.Extra (ifM)
import qualified RIO.ByteString as BS
-- import Control.Exception
import qualified Data.HashMap.Strict as HM
import qualified Data.FingerTree as FT
import qualified Data.Text as T
import Data.Aeson (eitherDecodeFileStrict')
import Data.FingerTree (FingerTree)
import Data.Time.Calendar (Day(..))
import Data.Time.Clock
import Data.Maybe (fromJust)
import RIO.FilePath
import RIO.List
import RIO.List.Partial
import qualified Debug.Trace as D
import qualified Data.FingerTree as FT
import qualified Data.HashMap.Strict as HM
import qualified Data.List as L
import qualified Data.Text as T
import qualified Data.Vector.Storable as VS
--import qualified Debug.Trace as D
data FillerException = QuitFiller
deriving Show
deriving stock Show
instance Exception FillerException
--deriving via Integer instance Hashable Day
newChart :: IBContract -> RIO App ()
newChart contract = do
app <- ask
@ -51,7 +52,7 @@ newChart contract = do
unless (null unknownDates) $ logError $ display $ T.pack $ show (length unknownDates) <> " files had no parsable Date."
let cacheData'' :: HashMap Day (FingerTree TimePoint ChartPoint) = HM.fromList $ bimap (fromMaybe today) FT.fromList <$> cacheData'
logError $ displayShow $ HM.keys cacheData''
c <- liftIO $ newTVarIO $ Chart con (fromMaybe FT.empty $ cacheData'' HM.!? today) (HM.delete today cacheData'') undefined defChartSettings [] Nothing False
c <- liftIO $ newTVarIO $ Chart con (fromMaybe FT.empty $ cacheData'' HM.!? today) (HM.delete today cacheData'') undefined defChartSettings defChartCacheSettings emptyChartCacheData Nothing False
tid <- liftIO $ forkIO $ fillChart app contract c
liftIO $ atomically $ do
modifyTVar' c (\Chart{..} -> let fillerThread = tid in Chart{..})
@ -67,7 +68,7 @@ fillChart app contract cVar = runRIO app $ do
let cancelSubscription = liftIO $ atomically $ do
modifyTVar tickerMapVar (HM.delete tickerId)
-- TODO: send cancel-request
let sendQ = twsConnectionSend $ twsConnectionRefs $ appRefs $ app
let sendQ = twsConnectionSend . twsConnectionRefs . appRefs $ app
liftIO $ atomically $ do
modifyTVar tickerMapVar (HM.insert tickerId sym)
writeTQueue sendQ $ Msg_IB_OUT $ IB_RequestMktData tickerId contract "233" False False
@ -76,18 +77,14 @@ fillChart app contract cVar = runRIO app $ do
-- chart dirty? set clean & begin work
c <- liftIO (readTVarIO cVar)
when (chartDirty c) $ do
liftIO $ atomically $ modifyTVar cVar (\c -> c { chartDirty = False })
let (lUpdate, cachePoints) = getUpdatedChartCache c Nothing
liftIO $ atomically $ modifyTVar cVar (\c -> c { chartCache = cachePoints, lastCacheUpdate = lUpdate })
liftIO $ atomically $ modifyTVar cVar (\c' -> c' { chartDirty = False })
(lUpdate, cachePoints) <- getUpdatedChartCache c Nothing
liftIO $ atomically $ modifyTVar cVar (\c' -> c' { chartCache = cachePoints, lastCacheUpdate = lUpdate })
return ()
threadDelay 1000000 -- sleep 5 seconds
getUpdatedChartCache :: Chart -> Maybe ChartSettings -> (Maybe TimePoint, [ChartPoint])
getUpdatedChartCache Chart{..} chartSettings' = (lUpdate, takeWhile (\ChartPoint{..} -> (\(TimePoint x) -> x < cacheUpdateStart) timeOfDay) chartCache <> map toCachePoint chunkedChart)
where (TimePoint cacheUpdateStart) = fromMaybe (TimePoint 0) Nothing -- TODO: lastCacheUpdate
cacheUpdateEnd = 86400
chunkChart :: Int -> Int -> Int -> FingerTree TimePoint ChartPoint -> [(TimePoint,[ChartPoint])]
chunkChart from until range tree = go from range interval
chunkChart :: Int -> Int -> Int -> FingerTree TimePoint ChartPoint -> [(TimePoint,[ChartPoint])]
chunkChart from until range tree = go from range interval
where
lastItem = case FT.viewr interval of
FT.EmptyR -> until
@ -99,17 +96,117 @@ getUpdatedChartCache Chart{..} chartSettings' = (lUpdate, takeWhile (\ChartPoint
| f+i >= lastItem = [(TimePoint (f+i), toList t)]
| otherwise = let (a, b) = FT.split (\(TimePoint x) -> x > f+i) t
in (TimePoint (f+i),toList a) : go (f+i) i b
chunkedChart = chunkChart cacheUpdateStart cacheUpdateEnd (chartResolution $ fromMaybe chartSettings chartSettings') chartData
lUpdate = fmap fst . lastMaybe $ chunkedChart
toCachePoint :: (TimePoint,[ChartPoint]) -> ChartPoint
toCachePoint (t,[]) = ChartPoint t (-1) 0 []
toCachePoint (t,as) = ChartPoint t m vol [OLHC o l h c]
toCachePoint :: (TimePoint,[ChartPoint]) -> ChartPoint
toCachePoint (t,[]) = ChartPoint t (-1) 0 []
toCachePoint (t,as) = ChartPoint t m vol [OLHC o l h c]
where
vol = sum $ volume <$> as
vol = sum $ pointVolume <$> as
as' = pointValue <$> as
ms' = sum $ (\x -> pointValue x * fromIntegral (volume x)) <$> as
m = ms' / fromIntegral vol
ms' = sum $ (\x -> pointValue x * pointVolume x) <$> as
m = ms' / vol
o = head as'
c = last as'
l = minimum as'
h = maximum as'
getUpdatedChartCache :: MonadIO m => Chart -> Maybe ChartCacheSettings -> m (Maybe TimePoint, ChartCacheData)
getUpdatedChartCache Chart{..} chartCacheSettings' = do
let ChartCacheSettings cRes cTicks = fromMaybe chartCacheSettings chartCacheSettings'
now <- liftIO getCurrentTime
-- - recalculate cacheUpdateStart & cacheUpdateEnd
let cacheUpdateEnd = (utcTimeToSeconds now + cRes) `div` cRes
cacheUpdateStart = cacheUpdateEnd - (cRes * cTicks)
ChartCacheData ccData ccRange ccFill = chartCache
chunks = case ccFill of
Nothing -> [(cacheUpdateStart, cacheUpdateEnd)]
Just (mi, ma) -> if
-- Interval mi-ma already updated. get remaining intervals
-- mi ma cUS cUE
| ma < cacheUpdateStart -> [(cacheUpdateStart, cacheUpdateEnd)]
-- mi? cUS mi? ma cUE -> [ma,cUE] + rest
| ma < cacheUpdateEnd -> [(ma,cacheUpdateEnd)] <> if
-- cUS mi ma
| mi > cacheUpdateStart -> [(cacheUpdateStart, mi)]
| otherwise -> []
| otherwise -> []
-- - chunk them with chunhChart
chunkedChart = L.concat $ for chunks $ \(start, end) -> chunkChart (min 0 start) end cRes chartData
lUpdate = cacheUpdateEnd - cRes
-- - calculate Range and need for shift
shiftNeccessary = case ccRange of
Nothing -> False
Just (_,ma) -> cacheUpdateEnd > ma
(newRange, shiftInterval) = if not shiftNeccessary && isJust ccRange then (fromJust ccRange, 0) else
let interval = (cTicks + 20) `div` 20 :: Int
iTo = (cacheUpdateEnd + cRes * interval) `div` (cRes * interval)
iFrom = iTo - 20 * (cRes * interval)
in ((iFrom,iTo), interval)
-- create data for updates
let timePointToIndex' :: (Int, Int) -> (Int, Int) -> TimePoint -> Int
timePointToIndex' (cRes', cTicks') (rFrom, rTo) (TimePoint p) = let result = (p - rFrom) `div` cRes in
if
| p < rFrom || p > rTo -> error $ "timePointToIndex' " <> show ((cRes', cTicks'),(rFrom, rTo),TimePoint p) <> ": " <> show p <> " out of range."
| result < 0 || result >= cTicks' -> error $ "timePointToIndex' " <> show ((cRes', cTicks'),(rFrom, rTo),TimePoint p) <> ": " <> show result <> " is invalid index"
| otherwise -> result
timePointToIndex :: TimePoint -> Int
timePointToIndex = timePointToIndex' newRange (cRes, cTicks)
-- fold instead of map, so we can carry over cached calculatinos from element to element (for i.e. ema/sma)
(!foldedData,_,_) = foldl' folder ([], ChartPoint 0 0 0 [], mempty) chunkedChart
folder :: ([(Int, ChartPoint)], ChartPoint, HM.HashMap Int [Float]) -> (TimePoint, [ChartPoint]) -> ([(Int, ChartPoint)], ChartPoint, HM.HashMap Int [Float])
folder old (_,[]) = old
folder (acc, lastPoint, smaMap) (tp,cdata) = ((timePointToIndex tp, cp):acc, cp, foldl' (.) id smaUpdates smaMap)
where
cp = ChartPoint tp m vol studies
(studies, smaUpdates) = unzip $ catMaybes $ (chartStudySettings chartSettings :: [ChartStudyType]) <&> \case
ChartStudyTypeOpen -> Just (OLHC o l h c, id)
ChartStudyTypeHigh -> Nothing
ChartStudyTypeLow -> Nothing
ChartStudyTypeClose -> Nothing
ChartStudyTypeDirect -> Nothing
ChartStudyTypeSMA w -> Nothing --TODO: fixme #13, do the calculation & use data inside smaMap and return (SMA x y, smaUpdate)
ChartStudyTypeVolume -> Just (Volume vol, id)
vol = sum $ pointVolume <$> cdata
as' = pointValue <$> cdata
ms' = sum $ (\x -> pointValue x * pointVolume x) <$> cdata
m = ms' / vol
o = head as'
c = last as'
l = minimum as'
h = maximum as'
-- plan the actual work
updates = chartStudySettings chartSettings <&> \cs ->
-- check if thing is in hashmap
let vec = case ccData HM.!? cs of
Nothing -> VS.replicate cTicks 0
Just a -> a
-- shift if neccessary
vec' = if shiftNeccessary && cs `HM.member` ccData then
-- TODO: unsafeSlice && unsafeUpdate_ - see #16
let sliceLength = VS.length vec - shiftInterval
in VS.update_ vec (VS.enumFromN 0 sliceLength) (VS.slice shiftInterval sliceLength vec)
else
vec
-- NOW:
-- newRange is (rangeFrom, rangeTo) in seconds with 0 being last midnight
-- vec' has that range mapped to indices [0,cTicks-1] with every cRes being one time-slice
-- everything in the chunkedChart-list has to be inserted if in range using the same time-notation like the range
-- (hint: chunkedChart is (time, [data]), with time being the point at the end of each contained interval)
findOLHC as = fromJust $ find (\case OLHC{} -> True; _ -> False) as
findVolume as = fromJust $ find (\case Volume{} -> True; _ -> False) as
in case cs of
ChartStudyTypeDirect -> HM.insert cs (vec' VS.// ((\(i, ChartPoint _ x _ _) -> (i,x)) <$> foldedData))
ChartStudyTypeOpen -> HM.insert cs (vec' VS.// ((\(i, ChartPoint _ _ _ s) -> (i,olhc_open $ findOLHC s)) <$> foldedData))
ChartStudyTypeLow -> HM.insert cs (vec' VS.// ((\(i, ChartPoint _ _ _ s) -> (i,olhc_low $ findOLHC s)) <$> foldedData))
ChartStudyTypeHigh -> HM.insert cs (vec' VS.// ((\(i, ChartPoint _ _ _ s) -> (i,olhc_high $ findOLHC s)) <$> foldedData))
ChartStudyTypeClose -> HM.insert cs (vec' VS.// ((\(i, ChartPoint _ _ _ s) -> (i,olhc_close $ findOLHC s)) <$> foldedData))
ChartStudyTypeSMA x -> id --TODO: implement #13
ChartStudyTypeVolume -> HM.insert cs (vec' VS.// ((\(i, ChartPoint _ _ _ s) -> (i,volume $ findVolume s)) <$> foldedData))
return (Just $ TimePoint lUpdate, ChartCacheData (foldl' (.) id updates ccData) (Just newRange) Nothing) -- FIXME: fillData still missing
getChunkedDay :: Chart -> Maybe Int -> (Maybe TimePoint, [ChartPoint])
getChunkedDay Chart{..} chunkResolution = (lUpdate, toCachePoint <$> chunkedData)
where
chunkedData = chunkChart 0 86400 (fromMaybe (chartCacheResolution chartCacheSettings) chunkResolution) chartData
lUpdate = fmap fst . lastMaybe $ chunkedData

3
src/IBClient/Types.hs
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@ -44,7 +44,8 @@ toBS (IBBool False) = "0"--BS.pack [0,0,0,0] -- bool == 32-bit int in IB
newtype IBGenericMessage = IBGenericMessage
{ fields :: [IBTypes]
} deriving (Show, Eq)
} deriving stock (Show)
deriving newtype (Eq)
instance Binary IBGenericMessage where
put (IBGenericMessage f) = do

4
src/Import.hs
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@ -10,6 +10,7 @@ module Import
, ppShow'
, getCurrentDay
, switchAccountTo
, utcTimeToSeconds
) where
import RIO
@ -44,3 +45,6 @@ switchAccountTo a = do
liftIO $ atomically $ writeTQueue sendQ $ Msg_IB_OUT $ IB_RequestAccountData True a
-- finally change
liftIO $ atomically $ modifyTVar' (currentAccount refs') (const $ Just a)
utcTimeToSeconds :: UTCTime -> Int
utcTimeToSeconds = fromInteger . (`div` ((10 :: Integer)^(12 :: Integer))) . diffTimeToPicoseconds . utctDayTime

15
src/Run.hs
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@ -24,7 +24,6 @@ import qualified Data.HashMap.Strict as HM
--import qualified Data.FingerTree as FT
import IBClient.Connection
import Import (Chart(chartContractID))
run :: RIO App ()
run = do
@ -52,13 +51,13 @@ shutdownApp = do
-- save cached data
liftIO $ unlessM (doesDirectoryExist "cache") $ createDirectory "cache"
charts <- liftIO . readTVarIO . appCharts $ refs
forM_ (HM.toList charts) $ \(symbol,tc) -> do
forM_ (HM.toList charts) $ \(_symbol,tc) -> do
c@Chart{..} <- liftIO . readTVarIO $ tc
today <- liftIO $ utctDay <$> getCurrentTime
liftIO $ unlessM (doesDirectoryExist $ "cache/" <> show chartContractID) $ createDirectory $ "cache/" <> show chartContractID
let (_, chartData') = getUpdatedChartCache c (Just $ ChartSettings 5 Nothing Nothing)
let (_, chartData') = getChunkedDay c (Just 5)
newData = HM.toList
. fmap (filter (\ChartPoint{..} -> 0 /= volume))
. fmap (filter (\ChartPoint{..} -> 0 /= pointVolume))
. HM.alter (Just . maybe chartData' (<>chartData')) today
. fmap toList
$ chartHistData
@ -165,7 +164,7 @@ renderLoop = do
tableSetupColumn "AVG"
tableSetupColumn "Market Value"
tableHeadersRow
forM_ ((accs HM.! aid) ^.. accountPortfolio . traverse) $ \(IBPortfolioValue c p mp mv ac up rp) ->
forM_ ((accs HM.! aid) ^.. accountPortfolio . traverse) $ \(IBPortfolioValue c p mp mv _ac up rp) ->
do
tableNextRow
tableNextColumn $ text $ localSymbol c
@ -203,7 +202,7 @@ renderLoop = do
when mustSort $ liftIO $ pPrint sortSpecs
tableHeadersRow
lResult <- readTVarIO $ symbolLookupResults data'
forM_ lResult $ \contract@IBSymbolSample{..} -> do
forM_ lResult $ \IBSymbolSample{..} -> do
let popupName = fromString $ "SymbolAction"<>show _symbolId
withPopup popupName $ \isPopupOpen -> do
when isPopupOpen $ do
@ -232,8 +231,8 @@ renderLoop = do
(_ :> ChartPoint{..}) -> text $ fromString $ "Last: " <> show pointValue <> "\nTime: " <> show timeOfDay
withPlot "Test" $ do
-- TODO: set axes
let (x,y) = L.unzip $ (\ChartPoint{..} -> (fromIntegral timeOfDay,pointValue)) <$> chartCache
plotLine (T.unpack symbol) x y
-- let (x,y) = L.unzip $ (\ChartPoint{..} -> (fromIntegral timeOfDay,pointValue)) <$> chartCache
-- plotLine (T.unpack symbol) x y
return ()
return ()

61
src/Types.hs
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@ -24,6 +24,7 @@ import RIO
import RIO.Process
import Lens.Micro.TH
import qualified Data.Text as T
import qualified Data.Vector.Storable as VS
import IBClient.Types
@ -134,7 +135,7 @@ data IBPortfolioValue = IBPortfolioValue
} deriving (Show, Eq)
newtype IBAccountStrategy = IBAccountStrategy [Int] -- Int -> contract-id for this strategy
deriving (Show, Eq)
deriving newtype (Show, Eq)
data IBSymbolSample = IBSymbolSample
{ _symbolId :: Int
@ -153,50 +154,80 @@ data ChartSettings = ChartSettings
{ chartResolution :: Int
, chartStart :: Maybe UTCTime
, chartEnd :: Maybe UTCTime
, chartStudySettings :: [ChartStudyType]
} deriving (Show, Eq)
defChartSettings :: ChartSettings
defChartSettings = ChartSettings 60 Nothing Nothing
defChartSettings = ChartSettings 60 Nothing Nothing [ChartStudyTypeDirect]
-- data TimeWindow = TimeWindow
-- { begin :: Int
-- , end :: Int
-- } deriving (Show, Eq)
updateChartStudySettings :: Chart -> [ChartStudyType] -> Chart
updateChartStudySettings Chart{..} s =
let chartSettings = chartSettings { chartStudySettings = [] }
chartCache = emptyChartCacheData
lastCacheUpdate = Nothing
in Chart{..}
-- | Settings for Chart-cache.
--
-- instance Semigroup TimeWindow where
-- (TimeWindow a b) <> (TimeWindow x y) = TimeWindow (min a x) (max b y)
--
-- instance Monoid TimeWindow where
-- mempty = TimeWindow 0 86400
-- History and Resolution yield 1 day by default. Do not increase over 5000 as memery-consumption explodes!
-- Think of it as timePlotted = candleWidth * numberOfCandles
data ChartCacheSettings = ChartCacheSettings
{ chartCacheResolution :: Int
, chartCacheHistory :: Int
} deriving stock (Show, Eq)
defChartCacheSettings :: ChartCacheSettings
defChartCacheSettings = ChartCacheSettings 60 1440
-- TODO: TimePointFloat? or only 1 entry per second?
newtype TimePoint = TimePoint Int
deriving (Eq, Generic)
deriving newtype (Show, Enum, Real, Ord, Num, Integral, FromJSON, ToJSON)
deriving stock (Generic)
deriving newtype (Show, Eq, Enum, Real, Ord, Num, Integral, FromJSON, ToJSON)
deriving (Semigroup, Monoid) via (Max Int)
data ChartStudies = SMA { window :: Int, value :: Float }
| OLHC { olhc_open :: Float, olhc_low :: Float, olhc_high :: Float, olhc_close :: Float}
| Volume { volume :: Float }
deriving (Show, Eq, Generic, FromJSON, ToJSON)
data ChartPoint = ChartPoint
{ timeOfDay :: TimePoint
, pointValue :: Float
, volume :: Int
, pointVolume :: Float
, pointExtra :: [ChartStudies]
} deriving (Show, Eq, Generic, FromJSON, ToJSON)
instance Measured TimePoint ChartPoint where
measure = timeOfDay
data ChartStudyType = ChartStudyTypeDirect
| ChartStudyTypeSMA Int
| ChartStudyTypeOpen
| ChartStudyTypeLow
| ChartStudyTypeHigh
| ChartStudyTypeClose
| ChartStudyTypeVolume
deriving stock (Show, Eq, Generic)
deriving anyclass (Hashable)
data ChartCacheData = ChartCacheData
{ chartCacheData :: HashMap ChartStudyType (VS.Vector Float)
, chartCacheCurrent :: Maybe (Int,Int) -- ^ in number of TimePoint, negative meaning "before today"
, chartCacheFilled :: Maybe (Int,Int) -- ^ in number of TimePoint, negative meaning "before today"
} deriving stock (Show, Eq)
emptyChartCacheData :: ChartCacheData
emptyChartCacheData = ChartCacheData mempty Nothing Nothing
data Chart = Chart
{ chartContractID :: Int
, chartData :: FingerTree TimePoint ChartPoint -- ^ raw data (time & sale)
, chartHistData :: HashMap Day (FingerTree TimePoint ChartPoint) -- ^ raw data (time & sale)
, fillerThread :: ThreadId
, chartSettings :: ChartSettings
, chartCache :: [ChartPoint] -- ^ cache for drawing with all pointExtra filled out and sampled according to 'chartSettings'
, chartCacheSettings :: ChartCacheSettings
, chartCache :: ChartCacheData -- ^ cache for drawing with all pointExtra filled out and sampled according to 'chartSettings'
, lastCacheUpdate :: Maybe TimePoint
, chartDirty :: Bool
} deriving (Show, Eq)