from geruecht.model.accessToken import AccessToken
from datetime import datetime
import time
from threading import Thread
import hashlib

class AccesTokenController(Thread):
    """ Control all createt AccesToken
    
        This Class create, delete, find and manage AccesToken.

        Attributes:
            tokenList: List of currents AccessToken
            lifetime: Variable for the Lifetime of one AccessToken in seconds.
    """
    tokenList = None
    lifetime = 60

    def __init__(self):
        """ Initialize AccessTokenController
        
            Initialize Thread and set tokenList empty.
        """
        print("init AccesTokenControlle")
        print("init threading")
        Thread.__init__(self)
        self.tokenList = []

    def findAccesToken(self, token):
        """ Find a Token in current AccessTokens
        
            Iterate throw all availables AccesTokens and retrieve one, if they are the same.

            Args:
                token: Token to find

            Returns:
                An AccessToken if found or None if not found.
        """
        print("search for AccesToken", token)
        for accToken in self.tokenList:
            if accToken == token:
                print("find AccesToken", accToken, "with token", token)
                return accToken
        print("no AccesToken with", token)
        return None

    def createAccesToken(self, user):
        """ Create an AccessToken

            Create an AccessToken for an User and add it to the tokenList.

            Args:
                user: For wich User is to create an AccessToken

            Returns:
                A created Token for User
        """
        print("create AccesToken")
        now = datetime.ctime(datetime.now())
        token = hashlib.md5((now + user.password).encode('utf-8')).hexdigest()
        self.tokenList.append(AccessToken(user, token))
        print(self.tokenList)
        print("finished create AccesToken", token)
        return token

    def isSameGroup(self, accToken, group):
        """ Verify group in AccessToken
        
            Verify if the User in the AccesToken has the right group.

            Args:
                accToken: AccessToken to verify.
                group: Group to verify.
            
            Returns:
                A Bool. If the same then True else False
        """
        print("controll if", accToken, "hase group", group)
        return True if accToken.user.group == group else False

    def run(self):
        """ Starting Controll-Thread
        
            Verify that the AccesToken are not out of date. If one AccessToken out of date it will be deletet from tokenList.
        """
        while True:
            print("start allocate")
            for accToken in self.tokenList:
                print("controle", accToken)
                if (datetime.now() - accToken.timestamp).seconds > 7200:
                    print("delete", accToken)
                    self.tokenList.remove(accToken)
                else:
                    print("time is only", (datetime.now() - accToken.timestamp).seconds)
            print(self.tokenList)
            print("wait")
            time.sleep(10)