# These constants are merely meant to be used
# so that the check_override declarations are more readable:
KEEP_ORIGINAL_STATUS = None
KEEP_ORIGINAL_MESSAGE = None


class Message:
    """Status messages to be yielded by FontBakeryCheck"""

    def __init__(self, code, message):
        """
        code: (string|number) a check internal, unique code to describe a
              specific failure condition. A short string is preferred, it
              makes a better experience to read the code.
              Never use the same code at two different yields, this is meant
              for unit testing to identify a specific condition of the check.
              A yield within a loop would (usually) have the same code for
              each iteration, unless there's a good reason not to do so.

        message: (string) human readable message.

        In the future, this class could be extended to hold even more
        information if useful, e.g. a hint how to fix a specific condition.
        """
        self.code = code
        self.message = message

    def __repr__(self):
        if self.code:
            return f"{self.message} [code: {self.code}]"
        else:
            return f"{self.message}"

    def getData(self):
        """return a dictionary with data suitable for serialization,
        i.e. only stuff that is allowed in JSON.
        """
        return {"code": self.code, "message": self.message}
