from log import Log
from db_helper import RedisHelper
from config import set_config

log_ = Log()
config_ = set_config()


def rov_pool_recall(mid, uid, app_type, size):
    """
    从ROV召回池中获取视频
    :param mid: mid type-string
    :param uid: uid type-string
    :param app_type: 产品标识 type-int
    :param size: 获取数量 type-int
    :return: rov_pool_recall_result
    """




def video_recommend(mid, uid, size, app_type, algo_type):
    """
    首页线上推荐逻辑
    :param mid: mid type-string
    :param uid: uid type-string
    :param size: 请求视频数量 type-int
    :param app_type: 产品标识  type-int
    :param algo_type: 算法类型  type-string
    :return:
    """
    # 1. 从ROV召回池中获取 size 个视频, 过滤

    # 2. 从流量池中获取 size-K 个视频，过滤，剩余可分发数 > 0

    # 3. 排序，topK 召回池视频，size-K 按概率 P 从流量池中获取视频