from enum import Enum


class ModeGroups(str, Enum):
    STATIONARY = "s"
    NON_STATIONARY = "n"
    ENGLISH_SPEAKING_STATIONARY = "e"


class EnrollmentsMode(str, Enum):
    """
    What means specific values?:
    INIT - project supervisor set your availability time for this examination
            schedule, students cannot use examination schedule
    OPEN - students can assign to term of defence, project supervisor cannot
           use examination schedule
    CLOSE - students and project supervisor cannot use examination schedule
    """

    INIT = "i"
    OPEN = "o"
    CLOSE = "c"