implementation module mTaskInterpret

//import iTasks
import gdynamic, gCons, GenEq, StdMisc, StdArray, GenBimap
import GenPrint
import StdEnum
import mTask

import StdFile
import StdString

from StdFunc import o, const
import StdBool
import StdTuple
import Data.Tuple
import Data.Monoid
import Data.Functor
import StdList
from Data.Func import $
from Text import class Text(concat,join,toUpperCase), instance Text String

toByteVal :: BC -> [Char]
toByteVal b
# bt = toBC b
= [bt:case b of
		(BCPush i) = i
		(BCAnalogRead i) = [toChar i]
		(BCAnalogWrite i) = [toChar i]
		(BCDigitalRead i) = [toChar i]
		(BCDigitalWrite i) = [toChar i]
		(BCJmp i) = [toChar i]
		(BCJmpT i) = [toChar i]
		(BCJmpF i) = [toChar i]
		_ = []]
	where
		toBC b = toChar $ consIndex{|*|} b + 1

instance Semigroup (ByteCode a p) where
	mappend m n = BC \s->let (b1, (b2, t)) = runBC m <$> runBC m s in (b1 ++ b2, t)

instance Monoid (ByteCode a p) where
	mempty = retrn []

(<++>) infixl 2 :: (ByteCode a p) (ByteCode b q) -> ByteCode c r
(<++>) m n = BC \s->let (b1, (b2, t)) = runBC n <$> runBC m s in (b1 ++ b2, t)

(<+->) infixr 1
(<+->) m n :== m <++> retrn n

runBC (BC m) = m

retrn :: ([BC] -> ByteCode a p)
retrn = BC o tuple

instance toByteCode Bool where
	toByteCode True = [toChar 1]
	toByteCode False = [toChar 0]
instance toByteCode Int where toByteCode n = map toChar [n/(2<<7),n rem 265]
instance toByteCode Long where toByteCode (L n) = toByteCode n
instance toByteCode Char where toByteCode c = [c]
instance toByteCode String where toByteCode s = undef
instance toByteCode Button where toByteCode s = [toChar $ consIndex{|*|} s]

instance toChar Pin where
	toChar (Digital p) = toChar $ consIndex{|*|} p + 1
	toChar (Analog p) = toChar $ consIndex{|*|} p + 1

derive gPrint BC, AnalogPin, Pin, DigitalPin
derive consIndex BC, Pin, Button
derive consName BC, Pin, Button

instance arith ByteCode where
	lit x = retrn [BCPush $ toByteCode x]
	(+.) x y = x <++> y <+-> [BCAdd]
	(-.) x y = x <++> y <+-> [BCSub]
	(*.) x y = x <++> y <+-> [BCMul]
	(/.) x y = x <++> y <+-> [BCDiv]

instance boolExpr ByteCode where
	(&.) x y = x <++> y <+-> [BCAnd]
	(|.) x y = x <++> y <+-> [BCOr]
	Not x = x <+-> [BCNot]
	(==.) x y = x <++> y <+-> [BCEq]
	(!=.) x y = x <++> y <+-> [BCNeq]
	(<.) x y = x <++> y <+-> [ BCLes]
	(>.)  x y = x <++> y <+-> [BCGre]
	(<=.) x y = x <++> y <+-> [BCLeq]
	(>=.) x y = x <++> y <+-> [BCGeq]

instance analogIO ByteCode where
	analogRead p = retrn [BCAnalogRead $ pin p]
	analogWrite p b = b <+-> [BCAnalogWrite $ pin p]

instance digitalIO ByteCode where
	digitalRead p = retrn [BCDigitalRead $ pin p]
	digitalWrite p b = b <+-> [BCDigitalWrite $ pin p]

instance If ByteCode Stmt Stmt Stmt where If b t e = BCIfStmt b t e
instance If ByteCode Stmt e Stmt where If b t e = BCIfStmt b t e
instance If ByteCode Stmt Stmt e where If b t e = BCIfStmt b t e
instance If ByteCode x y Expr where If b t e = BCIfStmt b t e
instance IF ByteCode where
	IF b t e = BCIfStmt b t e
	(?) b t = BCIfStmt b t $ retrn []
BCIfStmt b t e = withLabel \else->withLabel \endif->retrn [BCJmpF else] <++> t
	<++> retrn [BCJmp endif] <++> e <++> retrn [BCLab endif]

instance noOp ByteCode where noOp = mempty


withLabel :: (Int -> (ByteCode b q)) -> ByteCode b q
withLabel f = BC \s->let [fresh:fs] = s.freshl
	in runBC (f fresh) {s & freshl=fs}

/*
instance sds ByteCode where
	sds f = undef/*{main = 
			let var = 42
			    (v In body) = f var
			in unMain body
		}*/
	con f = undef
*/

instance serial ByteCode where
	serialAvailable = retrn [BCSerialAvail]
	serialPrint s = retrn [BCSerialPrint]
	serialPrintln s = retrn [BCSerialPrintln]
	serialRead = retrn [BCSerialRead]
	serialParseInt = retrn [BCSerialParseInt]

instance zero BCState where
	zero = {freshl=[1..]}

toRealByteCode :: (ByteCode a Expr) -> String
toRealByteCode x
# (bc, st) = runBC x zero
= concat $ map (toString o toByteVal) bc

toReadableByteCode :: (ByteCode a Expr) -> String
toReadableByteCode x
# (bc, st) = runBC x zero
= join "\n" $ map printToString bc

toReadableByteVal :: BC -> String
toReadableByteVal a = printToString a


Start :: String
Start = toReadableByteCode bc
	where
		bc :: ByteCode Int Expr
		bc = (lit 36 +. lit 42) +. lit 44

//to16bit :: Int -> String
//to16bit i = toString (toChar (i/265)) +++ toString (toChar (i rem 265))
//
////Run test programma en pretty print
////Start :: String
////Start = "t" +++ to16bit (size b) +++ b
//Start :: Main (ByteCode Int Expr)
//Start = bc
//	where
//		bc = sds \x=43 In {main = If (x ==. lit 42) (analogRead A1) (analogRead A0)}
//		b = toRealByteCode bc
//Start :: ByteCode Int Expr
//Start = If (lit True) (analogRead A1) (analogRead A0)
//Start = If ((lit 36) ==. (lit 42)) (noOp) (noOp)