import time
from apscheduler.schedulers.background import BackgroundScheduler
from django_apscheduler.jobstores import DjangoJobStore
from django_apscheduler.models import DjangoJob
import datetime


class ApschedulerObject:
    def __init__(self):
        self.scheduler = BackgroundScheduler()
        self.scheduler.add_jobstore(DjangoJobStore(), 'default')
        self.scheduler.start()

    @staticmethod
    def auto_hello():  # 任务
        now_time = time.time()
        print('hello world:[{}]'.format(now_time))

    def create_cron_job(self, func, task_id, day_of_week, hour, minute, args):  # 周期任务
        job = self.scheduler.add_job(func=func, trigger='cron', day_of_week=day_of_week, hour=hour, minute=minute,
                                     replace_existing=True, id=task_id, max_instances=1, coalesce=False, args=args,
                                     misfire_grace_time=300)
        print(job)

    def create_interval_job(self, func, task_id, minutes, start_time, end_time, args):  # 间隔任务
        self.scheduler.add_job(func=func, trigger='interval', minutes=minutes,
                               start_date=datetime.datetime.fromtimestamp(start_time),
                               end_date=datetime.datetime.fromtimestamp(end_time),
                               replace_existing=True, id=task_id, max_instances=1, coalesce=False, args=args)

    def create_date_job(self, func, task_id, time_stamp, args):
        """
        创建时间点任务
        @param func:
        @param task_id:
        @param time_stamp:
        @param args:
        @return:
        """
        self.scheduler.add_job(func=func, trigger='date', run_date=datetime.datetime.fromtimestamp(time_stamp),
                               replace_existing=True, id=task_id, max_instances=1, coalesce=False, args=args)

    @staticmethod
    def del_job(task_id):  # 删除任务
        DjangoJob.objects.filter(id=task_id).delete()