class Concept:
    """
    Default concept object
    A concept is a the base object of our universe
    Everything is a concept
    """

    concepts_id = 0

    def __init__(self, name, is_builtin=False):
        self.name = name
        self.is_builtin = is_builtin
        self.pre = None  # list of pre conditions before calling the main function
        self.post = None  # list of post conditions after calling the main function
        self.main = None   # main method
        self.value = None  # value of the concept
        self.id = Concept.concepts_id
        Concept.concepts_id = Concept.concepts_id + 1

        self.props = []  # list of Property for this concept
        self.functions = {}  # list of helper functions

    def __str__(self):
        return f"({self.id}){self.name}"

    def __repr__(self):
        return f"({self.id}){self.name}"


class Property:
    """
    Defines a behaviour of Concept
    """

    def __init__(self, concept, value):
        self.concept = concept
        self.value = value