from enum import IntEnum, Enum, IntFlag

class ParticipantType(IntFlag):
    """determines the type of a participant"""
    undefined = 0
    BSMD = 1
    TERMINAL = 2
    PILOT = 4
    AGENCY = 8
    MOORING = 16
    PORT_ADMINISTRATION = 32
    TUG = 64

class ShipcallType(IntEnum):
    """determines the type of a shipcall, as this changes the applicable validation rules"""
    undefined = 0
    INCOMING = 1
    OUTGOING = 2
    SHIFTING = 3

    @classmethod
    def _missing_(cls, value):
        return cls.undefined

class ParticipantwiseTimeDelta():
    """stores the time delta for every participant, which triggers the validation rules in the rule set '0001'"""
    AGENCY = 1200.0 # 20 h * 60 min/h = 1200 min
    MOORING = 960.0 # 16 h * 60 min/h = 960 min
    PILOT = 960.0 # 16 h * 60 min/h = 960 min
    PORT_ADMINISTRATION = 960.0 # 16 h * 60 min/h = 960 min
    TUG = 960.0 # 16 h * 60 min/h = 960 min
    TERMINAL = 960.0 # 16 h * 60 min/h = 960 min

    NOTIFICATION = 10.0 # after n minutes, an evaluation may rise a notification

class StatusFlags(IntEnum):
    """
    these enumerators ensure that each traffic light validation rule state corresponds to a value, which will be used in the ValidationRules object to identify
    the necessity of notifications.
    """
    NONE = 0
    GREEN = 1
    YELLOW = 2
    RED = 3

class PierSide(IntEnum):
    """These enumerators determine the pier side of a shipcall."""
    PORTSIDE = 0 # Port/Backbord
    STARBOARD_SIDE = 1 # Starboard / Steuerbord
        
class NotificationType(IntFlag):
    """determines the method by which a notification is distributed to users. Flagging allows selecting multiple notification types."""
    UNDEFINED = 0
    EMAIL = 1
    POPUP = 2
    MESSENGER = 4

class ParticipantFlag(IntFlag):
    """
    | 1 | If this flag is set on a shipcall record with participant type Agency (8), 
    all participants of type BSMD (1) may edit the record.
    """
    undefined = 0
    BSMD = 1