"""
Deis API exception classes.
"""

from __future__ import unicode_literals

from rest_framework.exceptions import APIException
from rest_framework import status


class AbstractDeisException(APIException):
    """
    Abstract class in which all Deis Exceptions and Errors should extend.

    This exception is subclassed from rest_framework's APIException so that
    subclasses can change the status code to something different than
    "500 SERVER ERROR."
    """

    def __init__(self, detail=None):
        self.detail = detail

    class Meta:
        abstract = True


class BuildNodeError(AbstractDeisException):
    """
    Indicates a problem in building or bootstrapping a node.
    """
    status_code = status.HTTP_401_UNAUTHORIZED


class BuildFormationError(AbstractDeisException):
    """
    Indicates a problem in creating a formation.
    """
    status_code = status.HTTP_400_BAD_REQUEST


class UserRegistrationException(AbstractDeisException):
    """
    Indicates that there was a problem registering the user.
    """
    status_code = status.HTTP_400_BAD_REQUEST