from urllib import request
import re 
class Spider():
    '''

    '''
    root_pattern='<div class="video-info">([\s\S]*?)</div>'
    name_pattern='</i>([\s\S]*?)</span>'
    number_pattern=' <span class="video-number">([\s\S]*?)</span>'
    url="https://www.panda.tv/cate/fortnite"
    def __fetch_content(self):
        r=request.urlopen(Spider.url)
        htmls=r.read()
        htmls=str(htmls,encoding='utf-8')

        return htmls


    def __analysis(self, htmls):
        root_htmls = re.findall(Spider.root_pattern, htmls)
        anchors=[]

        for html in root_htmls:
            name=re.findall(Spider.name_pattern, html)
            number = re.findall(Spider.number_pattern,html)
            anchor={'name':name,'number':number}
            anchors.append(anchor)

        return anchors

    def __refine(self,anchors):
        l=lambda anchor:{
            'name':anchor['name'][0].strip(),
            'number':anchor['number'][0]
            }

        return map(l,anchors)

    def __sort(self,anchors):
        anchors=sorted(anchors,key=self.__sort_seed,reverse=True)

        return anchors

    def __sort_seed(self,anchor):
        number=re.findall('\d*.\d*',anchor['number'])
        number=float(number[0])

        if '万' in anchor['number']:
            number*=10000

        return number


    def __show(self,anchors):
       for rank in range(0,len(anchors)):
           print(
               'rank:'+str(rank+1)+' : '+anchors[rank]['name']+' : '+anchors[rank]['number']
           )

    def go(self):
        htmls=self.__fetch_content()
        anchors=self.__analysis(htmls)
        anchors=self.__refine(anchors)
        anchors=self.__sort(anchors)
        self.__show(anchors)

spider=Spider()
spider.go()