"""
/**
* Copyright 2020 Zhejiang Lab. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================
*/
"""
# -*- coding: utf-8 -*-
import sched

import common.config as config
import luascript.delaytaskscript as delay_script
from track_only.hog_track import *

schedule = sched.scheduler(time.time, time.sleep)

delayId = ""


def trackProcess(task, key):
    """Track task method.
            Args:
              task: dataset id.
              key: video file path.
            Returns:
              True: track success
              False: track failed
    """
    global delayId
    delayId = "\"" + eval(str(key, encoding="utf-8")) + "\""
    task = json.loads(task.decode('utf-8'))
    image_list = []
    label_list = []
    images_data = task['images']
    path = task['path']

    for file in images_data:
        filePath = path + "/origin/" + file
        annotationPath = path + "/annotation/" + file.split('.')[0]
        if not os.path.exists(filePath):
            continue
        if not os.path.exists(annotationPath):
            continue
        image_list.append(filePath)
        label_list.append(annotationPath)
    image_num = len(label_list)
    track_det = Detector(
        'xxx.avi',
        min_confidence=0.35,
        max_cosine_distance=0.2,
        max_iou_distance=0.7,
        max_age=30,
        out_dir='results/')
    track_det.write_img = False
    RET = track_det.run_track(image_list, label_list)
    if RET == 'OK':
        return True
    else:
        return False


def delaySchduled(inc, redisClient):
    """Delay task method.
        Args:
            inc: scheduled task time.
            redisClient: redis client.
    """
    try:
        print("delay:" + datetime.now().strftime("B%Y-%m-%d %H:%M:%S"))
        redisClient.eval(delay_script.delayTaskLua, 1, config.trackStartQueue, delayId, int(time.time()))
        schedule.enter(inc, 0, delaySchduled, (inc, redisClient))
    except Exception as e:
        print("delay error" + e)


def delayKeyThread(redisClient):
    """Delay task thread.
        Args:
            redisClient: redis client.
    """
    schedule.enter(0, 0, delaySchduled, (5, redisClient))
    schedule.run()