module miTask

import StdDebug, StdMisc
from StdFunc import flip

import iTasks
import mTask
import Devices.mTaskDevice
import Shares.mTaskShare
import Tasks.Examples
import Utils.SDS

from Text import class Text(startsWith,concat,split,join), instance Text String

import qualified Data.Map as DM

from Data.Func import $
import Data.Tuple
import Data.List
import System.Directory

import iTasks._Framework.Store
import iTasks._Framework.Serialization

import TTY, iTasksTTY

derive class iTask UserLED

Start :: *World -> *World
Start world = startEngine (mTaskManager
	>>* [OnAction (Action "Shutdown") (always $ shutDown)]) world

mTaskManager :: Task ()
mTaskManager = anyTask 
		[ viewmTasks @! ()
		, whileUnchanged sdsStore viewShares
		, whileUnchanged deviceStore $ manageDevices process
		] <<@ ApplyLayout layout
	where
		layout = sequenceLayouts
			[ arrangeWithSideBar 0 LeftSide 260 True
			, arrangeSplit Vertical True
			]

		viewmTasks = listmTasks
			>&^ \sh->whileUnchanged sh $ \mi->forever (case mi of
				Nothing = viewInformation "No task selected" [] ()
				Just mTaskTask = get deviceStore
					>>= \devices->case devices of
						[] = viewInformation "No devices yet" [] ()
						ds = sendmTask mTaskTask ds @! ())
			where
				listmTasks :: Task String
				listmTasks = enterChoiceWithShared "Available mTasks" [ChooseFromList id] mTaskTaskStore

				sendmTask mTaskId ds = fromJust ('DM'.get mTaskId allmTasks)
//					>>= \bc->(enterChoice "Choose Device" [ChooseFromDropdown \t->t.deviceName] ds
//						-&&- enterInformation "Timeout, 0 for one-shot" [])
//					>>* [OnAction (Action "Send") (withValue $ Just o sendToDevice bc)]

		process :: MTaskDevice (Shared Channels) -> Task ()
		process device ch = forever (watch ch >>* [OnValue (
				ifValue (not o isEmpty o fst3)
				(\t->upd (appFst3 (const [])) ch >>| proc (fst3 t)))])
			where
				proc :: [MTaskMSGRecv] -> Task ()
				proc [] = treturn ()
				proc [m:ms] = (case m of
//					MTSDSAck i = traceValue (toString m) @! ()
//					MTSDSDelAck i = traceValue (toString m) @! ()
					MTPub i val = getSDSRecord i >>= set (toInt val.[0]*256 + toInt val.[1]) o getSDSStore @! ()
					MTTaskAck i = deviceTaskAcked device i
					MTTaskDelAck i = deviceTaskDeleteAcked device i @! ()
					MTEmpty = treturn ()
					_ = traceValue (toString m) @! ()
					) >>| proc ms

		mapPar :: (a -> Task a) [a] -> Task ()
		mapPar f l = foldr1 (\x y->f x ||- y) l <<@ ArrangeWithTabs @! ()
		allAtOnce t = foldr1 (||-) t @! ()
		//allAtOnce = (flip (@!) ()) o foldr1 (||-)