from utils.exceptions import BadRequest, ValidationError, Forbidden


class ProjectError(BadRequest):
    pass


class CampaignTypeError(BadRequest):
    """Raised in attempt to assign invalid type to an campaign."""

    pass


class PhaseStartDateError(BadRequest):
    pass


class ProjectScheduleError(ValidationError):
    def __init__(self):
        self.message = "End date must be greater or equal to the start date"
        super().__init__(self.message)


class ProjectEndDateError(ValidationError):
    def __init__(self):
        self.message = "End date must be greater or equal to the latest campaign end date"


class ProjectPRSArtistsError(Forbidden):
    detail = "You can't remove artists added by PRS"


class EndDateValidationError(BadRequest):
    detail = "Invalid project schedule."