"""This module is a collection of project-wide exceptions."""


class NotFoundException(Exception):
    """Raised when a resource was unexpectedly not found."""

    pass


class DataIntegrityException(Exception):
    """Raised to prevent a semantically invalid database operation."""

    pass


class InvalidFilterParameterException(Exception):
    """Raised when a query filter parameter is invalid."""

    pass


def create_exception_dict(message: str):
    """Creates a list for returning API error messages to the client.

    The list has the following format:
    [
      {
        "msg": "Something went wrong!.",
      },
    ]

    This is useful to return consistent API error messages.
    """

    if not isinstance(message, str):
        raise TypeError(f"Expected a string but got '{type(message)}'.")
    if not len(message):
        message = "An unknown error occurred."

    return [{"msg": message}]