#RPi5GPIO.py contains the functions listed below
#By D@CC 
#Purpose: to deprecate RPi.GPIO for the RPi 5B
#Source: https://ephotocaption.com/a/213/213.html
#Created  on 2024AJan18
#Modified on 2024AJan19
#Status: compatible with vsn I on the RPi5B, CM4
# PB down turns LED on with both RPi.GPIO and RPi5GPIO

# GPIO.BCM,GPIO.IN,GPIO.OUT, GPIO.HIGH, GPIO.LOW
# GPIO.setmode, GPIO.setup, GPIO.input, GPIO.output
# unity #which is used to support GPIO.BCM, GPIO.IN,
#        GPIO.OUT, GPIO.HIGH and GPIO.LOW

def BCM(parm="GPIO.BCM"):
    return parm
def IN(parm="GPIO.IN"):
    return parm
def OUT(parm="GPIO.OUT"):
    return parm
def HIGH(parm="GPIO.HIGH"):
    return parm
def LOW(parm="GPIO.LOW"):
    return parm
def unity(func):
    #by D@CC on 2024AJan18
    #Purpose: return "constants" such as GPIO.BCM, GPIO.HIGH etc
    #strReturn=func()
    try:
        strReturn=func()
    except:
        strReturn=True
    finally:
        pass
    #try end
    if strReturn=="GPIO.HIGH": strReturn=func(parm=True)
    if strReturn=="GPIO.LOW" : strReturn=func(parm=False)
    return strReturn
#/unity.py

def setmode(Qmode):
    global gix_Qmode
    global gix_QinOut
    global gix_PINs
    global gix_datetime
    gix_QinOut={}      #initialize an empty dict
    gix_PINs=[0]*41    #initialize an empty pin list
#      BEWARE OF PIN # 0,1,40 and 41
    mode=unity(Qmode)
    if mode=="GPIO.BCM":
        gix_Qmode=mode
        gix_datetime = "2024-01-19 01:25:40"
        #print("@5.45 set gix_datetime=",gix_datetime)
    else:
        print("RPi5GPIO ERROR mode must be GPIO.BCM")
    #if end
    return
#def end


def setup(QPin,QinOut):
    #Purpose: Save LED or Button type for QPin
    from gpiozero import LED,Button
    global gix_QinOut
    global gix_PINs
    isInOut = False
    #print("@5.59,QPin:",QPin)
    #print("@5.60,QinOut:",unity(QinOut))
    IO="NA"
    inOrOut=unity(QinOut)
    if inOrOut=="GPIO.IN"  : IO="Button"; isInOut=True
    if inOrOut=="GPIO.OUT" : IO="LED" ;   isInOut=True
    if QPin>0 and QPin<41 : isInOut=True
    #print("@5.66, isInOut:",isInOut)
    #print("@5.67, QPin:",QPin)
    
    
    if isInOut:                        #if QPin is valid
        #print("@5.71, unity(QinOut):",unity(QinOut))
        #print("@5.72,
        
        if not (inOrOut =="GPIO.IN"):   #if Pin is not IN ie is a LED
            #print("@5.75, IO:",IO)
            gix_QinOut[QPin]=IO
            gix_PINs[QPin]=LED(QPin) # create LED object
        else:
            #print("@5.79, IO:",IO)
            gix_QinOut[QPin]=IO
            gix_PINs[QPin] =Button(QPin) # create Button object in gix_PINs
            #print("RPi5GPIO has set up Button(QPin)")
        #if end
    #if end
    #print("@5.85 gix_QinOut",gix_QinOut)
    return
#def end



def output(QPin,TorF):
    from gpiozero import LED,Button
    global gix_QinOut
    global gix_PINs
    if QPin>0 and QPin<41 :
        #process output
        dir= gix_QinOut[QPin]
        if dir=="LED":
            if TorF :  #True
                #print("on")
                gix_PINs[QPin].on()
            else:
                #print("off")
                gix_PINs[QPin].off()
            #if end
        else:
            print("RPi5GPIO ERROR output cannot be Button")  
        #if end        
    else:
        print("RPi5GPIO ERROR Bad Pin")
    #if end
#def end
def input(QQPin):
    from gpiozero import LED,Button
    #Purpose: read button, return True if Pressed
    #                                return False if Not Pressed
    global gix_QinOut
    global gix_PINs
    #print("@5.119: QPin:",QPin)
    QPin=int(QQPin)
    if QPin>0 and QPin<41 :
        #process input
        dir= gix_QinOut[QPin]
        if dir=="Button":
            # read Button and return True or False
            #print("@126: QPin:",QPin)
            if gix_PINs[QPin].is_pressed :  #is this Button Pressed
                #print("@5.128 RPi5GPIO button was pressed")
                return False
            else:
                #print("@5.131 RPi5GPIO button was NOT pressed")
                return True
            #if end
        else:
            print("RPi5GPIO ERROR Input cannot be LED")  
        #if end     
    else:
        print("RPi5GPIO ERROR Bad Pin")
    #if end
#def end