class InputObject:

    def __init__(self, name):
        self.name = name


class Operation(InputObject):
    """Operation class"""



    def __init__(self,oper ,lhs, rhs):

        self.oper = oper.lower()
        self.lhs = lhs
        self.rhs = rhs







    def executeOperation(self):
        print("printar oper: ")
        print(self.oper)
        def addition(lhs, rhs):
            print("inne i add")
            lhs.value = lhs.value+rhs.value


        def subtraction(lhs, rhs):
            print("inne i sub")
            lhs.value = lhs.value-rhs.value


        def multiplication(lhs, rhs):
            print("inne i mult")
            lhs.value = lhs.value*rhs.value

        if (self.oper == "add"):
            addition(self.lhs, self.rhs)
        elif (self.oper == "minus"):
            subtraction(self.lhs, self.rhs)
        elif (self.oper == "mult"):
            multiplication(self.lhs, self.rhs)
        else:
            print("ogiltid operation")
            pass











class Value(InputObject):
    """ value class"""
    def __init__(self, name):

        #if (isinstance(float(name),float)):
        if (name.isdigit() or name.isdecimal()):

            self.name = name
            self.value = float(name) #fixa rätt med decimaler sen, fråga ante

        else:
            self.name = name
            self.value = 0


class Register(InputObject):
    """Register class"""
    def __init__(self, name):

        self.name = name
        self.value = 0