#
# This file is part of pysnmp software.
#
# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>
# License: https://www.pysnmp.com/pysnmp/license.html
#
from pysnmp.proto.errind import ErrorIndication
from pysnmp.proto.secmod import cache
from pysnmp.proto import error


class AbstractSecurityModel:
    securityModelID = None

    def __init__(self):
        self._cache = cache.Cache()

    def processIncomingMsg(
        self,
        snmpEngine,
        messageProcessingModel,
        maxMessageSize,
        securityParameters,
        securityModel,
        securityLevel,
        wholeMsg,
        msg,
    ):
        raise error.ProtocolError("Security model %s not implemented" % self)

    def generateRequestMsg(
        self,
        snmpEngine,
        messageProcessingModel,
        globalData,
        maxMessageSize,
        securityModel,
        securityEngineID,
        securityName,
        securityLevel,
        scopedPDU,
    ):
        raise error.ProtocolError("Security model %s not implemented" % self)

    def generateResponseMsg(
        self,
        snmpEngine,
        messageProcessingModel,
        globalData,
        maxMessageSize,
        securityModel,
        securityEngineID,
        securityName,
        securityLevel,
        scopedPDU,
        securityStateReference,
        ctx: ErrorIndication,
    ):
        raise error.ProtocolError("Security model %s not implemented" % self)

    def releaseStateInformation(self, stateReference):
        self._cache.pop(stateReference)

    def receiveTimerTick(self, snmpEngine, timeNow):
        pass