import time
import datetime
import pandas as pd
import math
import random
from odps import ODPS
from threading import Timer
from get_data import get_data_from_odps
from db_helper import RedisHelper, MysqlHelper
from config import set_config
from log import Log
from utils import request_post

config_, env = set_config()
log_ = Log()


def data_check(project, table, now_date):
    """检查数据是否准备好"""
    odps = ODPS(
        access_id=config_.ODPS_CONFIG['ACCESSID'],
        secret_access_key=config_.ODPS_CONFIG['ACCESSKEY'],
        project=project,
        endpoint=config_.ODPS_CONFIG['ENDPOINT'],
        connect_timeout=3000,
        read_timeout=500000,
        pool_maxsize=1000,
        pool_connections=1000
    )

    try:
        dt = datetime.datetime.strftime(now_date, '%Y%m%d')
        sql = f'select * from {project}.{table} where dt = {dt}'
        with odps.execute_sql(sql=sql).open_reader() as reader:
            data_count = reader.count
    except Exception as e:
        data_count = 0
    return data_count


def get_special_videos(now_date, project, table):
    """获取特殊mid指定的视频列表"""
    # 获取videoId
    dt = datetime.datetime.strftime(now_date, '%Y%m%d')
    records = get_data_from_odps(date=dt, project=project, table=table)
    video_id_list = [record['videoid'] for record in records]
    # 排序合并,随机给定分数
    final_result = {}
    json_data = []
    for video_id in video_id_list:
        score = random.uniform(0, 100)
        final_result[int(video_id)] = score
        json_data.append({'videoId': video_id, 'rovScore': score})

    # 写入对应的redis
    key_name = \
        f"{config_.KEY_NAME_PREFIX_SPECIAL_VIDEOS}{datetime.datetime.strftime(now_date, '%Y%m%d')}"
    if len(final_result) > 0:
        redis_helper = RedisHelper()
        redis_helper.add_data_with_zset(key_name=key_name, data=final_result, expire_time=2 * 24 * 3600)

    # 通知后端更新兜底视频数据
    log_.info('json_data count = {}'.format(len(json_data)))
    result = request_post(request_url=config_.NOTIFY_BACKEND_updateFallBackVideoList_URL,
                          request_data={'videos': json_data})
    if result['code'] == 0:
        log_.info('notify backend updateFallBackVideoList success!')
    else:
        log_.error('notify backend updateFallBackVideoList fail!')


def h_timer_check():
    project = config_.SPECIAL_MID_VIDEOS_PROJECT.get('videos')
    table = config_.SPECIAL_MID_VIDEOS_TABLE.get('videos')
    now_date = datetime.datetime.today()
    log_.info(f"now_date: {datetime.datetime.strftime(now_date, '%Y%m%d')}")
    # 查看当天更新的数据是否已准备好
    data_count = data_check(project=project, table=table, now_date=now_date)
    if data_count > 0:
        log_.info(f'special_videos_count = {data_count}')
        # 数据准备好，进行更新
        get_special_videos(now_date=now_date, project=project, table=table)
    else:
        # 数据没准备好，1分钟后重新检查
        Timer(5 * 60, h_timer_check).start()


if __name__ == '__main__':
    h_timer_check()