# encoding: utf-8
'''
@author: Techzero
@email: techzero@163.com
@time: 2014-5-18 下午5:06:29
'''
import cStringIO
import getopt
import time
import urllib2
import subprocess
import sys

from datetime import datetime

MEDIA_PLAYER = 'C:/Program Files/Windows Media Player/wmplayer.exe'
MEDIA_FILE = 'D:/notify.mp3'
CHROME = 'C:/Program Files (x86)/Google/Chrome/Application/chrome.exe'
URL = 'http://detail.ju.taobao.com/home.htm?spm=608.2214381.2.1.SY0wVT&item_id=16761325430&id=10000002801432'
NO_X11 = False

def get_current_button():
    '''获取当前按钮状态'''
    content = urllib2.urlopen(URL).read() #获取页面内容
    
    buf = cStringIO.StringIO(content.decode('gbk').encode('utf8')) #将页面内容转换为输入流
    current_button = None
    for line in buf:
        line = line.strip(' \n\r') #去掉回车换行
        
        if line.find(r'<a href="#" class="extra  notice J_BuyButtonSub">开团提醒</a>') != -1:
            current_button = '开团提醒'
            break
        elif line.find(r'<div class="main-box chance ">') != -1:
            current_button = '还有机会'
            break
        elif line.find(r'<span class="out floatright">卖光了...</span>') != -1:
            current_button = '卖光了'
            break
        elif line.find(r'<span class="out floatright">已结束...</span>') != -1:
            current_button = '已结束'
            break
        elif line.find(r'<input type="submit" class="buyaction J_BuySubmit"  title="马上抢" value="马上抢"/>') != -1:
            current_button = '马上抢'
            break
        
    buf.close()
    return current_button


def notify():
    '''发出通知并用Chrome打开秒杀页面'''
    subprocess.Popen([MEDIA_PLAYER, MEDIA_FILE])
    if not NO_X11:
        subprocess.Popen([CHROME, URL])
        print '打开页面'


def monitor_button(interval, last):
    '''开始监视按钮'''
    elapse = 0
    while elapse < last:
        current_button = get_current_button()

        now = datetime.now()
        print '%d-%d-%d %d:%d:%d - 现在按钮是 %s' % (now.year, now.month, now.day, now.hour, now.minute, now.second, current_button)

        if current_button == '马上抢' or current_button == '还有机会':
            print '赶紧抢购！'
            notify()
            break
        elif current_button == '卖光了' or current_button == '已结束':
            print '下次再试吧！'
            break
        else:
            print '还没开始呢，再等等吧！'

        time.sleep(interval)
        elapse += interval


def usage():
    print '''
usage: monitor_mac_price.py [options]

Options:
    -i interval: 30 seconds by default.
    -l last: 1800 seconds by default.
    -h: Print this usage.
    -X: Run under no X11.
'''

if __name__ == '__main__':
    try:
        opts, args = getopt.getopt(sys.argv[1:], 'i:l:hX')
    except getopt.GetoptError, err:
        print str(err)
        sys.exit(1)

    interval = 0.1
    last = 1800

    for opt, val in opts:
        if opt == '-i':
            interval = int(val)
        elif opt == '-l':
            last = int(val)
        elif opt == '-X':
            NO_X11 = True
        elif opt == '-h':
            usage()
            sys.exit()

    monitor_button(interval, last)