__author__ = 'asc'
import time
import datetime
import random, string

# def generate_mid():
#     new_mission_id = ''.join(random.SystemRandom().choice(string.ascii_uppercase) for _ in range(2))
#     return new_mission_id

class Mission():
    def __init__(self, timezero=None, mid=None):
        if not timezero:
            timezero = datetime.datetime.now()
        self._zero=timezero
        self._mid = mid
        # self._mid=generate_mid()

    def set_mid(self, mid):
        self._mid = mid

    def now(self):
        #returns a string
        d=datetime.datetime.now()-self._zero
        return d.total_seconds()

    @property
    def timezero(self):
        return self._zero

    def to_absolutetime(self, mission_time):
        return self._zero + datetime.timedelta(seconds=float(mission_time))

    @property
    def mid(self):
        if self._mid:
            mid = self._mid
        else:
            mid= None
        return self._mid

    @property
    def name(self):
        return self._mid