# -*- coding: utf-8 -*-
"""
-------------------------------------------------
   File Name：     check
   Description :
   Author :        JHao
   date：          2019/8/6
-------------------------------------------------
   Change Activity:
                   2019/8/6:
-------------------------------------------------
"""
__author__ = 'JHao'

from threading import Thread
from datetime import datetime
from util.six import Queue, Empty

from helper.proxy import Proxy
from util.validators import validators
from handler.logHandler import LogHandler
from handler.proxyHandler import ProxyHandler


def proxyCheck(proxy_obj):
    """
    检测代理是否可用
    :param proxy_obj: Proxy object
    :return: Proxy object, status
    """

    def __proxyCheck(proxy):
        for func in validators:
            if not func(proxy):
                return False
        return True

    if __proxyCheck(proxy_obj.proxy):
        # 检测通过 更新proxy属性
        proxy_obj.check_count += 1
        proxy_obj.last_status = 1
        proxy_obj.last_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        if proxy_obj.fail_count > 0:
            proxy_obj.fail_count -= 1
        return proxy_obj
    else:
        proxy_obj.check_count += 1
        proxy_obj.last_status = 0
        proxy_obj.last_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        proxy_obj.fail_count += 1
        return proxy_obj


class ProxyCheck(Thread):

    def __init__(self, check_type, queue, thread_name):
        Thread.__init__(self, name=thread_name)
        self.type = check_type
        self.log = LogHandler(self.name)
        self.proxy_handler = ProxyHandler()
        self.queue = queue

    def run(self):
        self.log.info("ProxyCheck - {}  : start".format(self.name))
        while True:
            try:
                proxy_json = self.queue.get(block=False)
            except Empty:
                self.log.info("ProxyCheck - {}  : exit".format(self.name))
                break

            proxy = Proxy.newProxyFromJson(proxy_json)
            proxy = proxyCheck(proxy)
            if self.type == "raw":
                if proxy.last_status:
                    if self.proxy_handler.exists(proxy_obj.proxy):
                        self.log.info('RawProxyCheck - {}  : {} validation exists'.format(self.name,
                                                                                          proxy_obj.proxy.ljust(20)))
                else:
                    self.db.put(proxy_obj)
                    self.log.info(
                        'RawProxyCheck - {}  : {} validation pass'.format(self.name, proxy_obj.proxy.ljust(20)))
            else:
                self.log.info('RawProxyCheck - {}  : {} validation fail'.format(self.name, proxy_obj.proxy.ljust(20)))
            self.queue.task_done()