import Devices.mTaskDevice
import Shares.mTaskShare
import Tasks.Examples
+import Data.List
import qualified Data.Map as DM
from Data.Func import $
-
-derive class iTask MTaskShare
+import Data.Tuple
memoryShare :: String a -> Shared a | iTask a
-memoryShare s d = sdsFocus s $ memoryStore "" $ Just d
-
-deviceStore :: Shared [MTaskDevice]
-deviceStore = sharedStore "mTaskDevices" []
-
-sdsStore :: Shared [MTaskShare]
-sdsStore = memoryShare "mTaskShares" []
+memoryShare s d = sdsFocus s $ memoryStore s $ Just d
+
+deviceStoreNP :: Shared [MTaskDevice]
+deviceStoreNP = sdsFocus Nothing $ deviceStore
+
+deviceStore :: RWShared (Maybe (MTaskDevice, Int)) [MTaskDevice] [MTaskDevice]
+deviceStore = SDSSource {SDSSource
+ | name = "deviceStore"
+ , read = \_->read realDeviceStore
+ , write= realWrite
+ }
+where
+ realWrite mi w iw
+ # (merr, iw) = write w realDeviceStore iw
+ | isError merr || isNothing mi = (merr $> const True, iw)
+ # (Just (dev, ident)) = mi
+ | ident == -1 = (merr $> const True, iw)
+ = case find ((==)dev) w of
+ Nothing = (Error $ exception "Device doesn't exist anymore", iw)
+ Just {deviceShares} = case find (\{identifier}->identifier == ident) deviceShares of
+ Nothing = (Error $ exception $ "deviceStore: Share doesn't exist: " +++ toString ident, iw)
+ Just s = case sendMessagesIW [MTUpd ident s.MTaskShare.value] dev iw of
+ (Error e, iw) = (Error e, iw)
+ (Ok _, iw) = (Ok $ lens mi, iw)
+
+ lens Nothing (Just p) = False
+ lens Nothing Nothing = True
+ lens (Just (d1, i1)) (Just (d2, i2)) = d1 == d2 && (i2 == -1 || i1 == i2)
+
+realDeviceStore :: Shared [MTaskDevice]
+realDeviceStore = sharedStore "mTaskDevices" []
bcStateStore :: Shared BCState
bcStateStore = memoryShare "mTaskBCState" zero
mTaskTaskStore :: Shared [String]
mTaskTaskStore = memoryShare "mTaskTasks" $ 'DM'.keys allmTasks
-
-getSDSRecord :: Int -> Task MTaskShare
-getSDSRecord i = get sdsStore @ \l->hd [s\\s<-l | s.identifier == i]