import tracking.lidar_tracker_pb2 as lidar_tracker_pb2
from tracking.lidar_tracker_pb2_grpc import PersonTrackingServicer
from tracking.lidar_cache import LidarCache
from multiprocessing import Process


class LidarServicer(PersonTrackingServicer):

    def __init__(self):
        self.cache = LidarCache(measurements=100)

    def set_tracking_group(self, request, context):
        pass

    def stop_tracking(self, request, context):
        self.cache.stop_scanning()

    def start_tracking(self, request, context):
        '''
        Starts the lidar cache. 
        '''
        self.cache.start_cache()