#!/usr/bin/env python
# encoding: utf-8
"""
下载检测
"""

import hashlib
import os
import time
import datetime
import traceback
import sys
import json
import socket
import threading
from hashlib import sha1
from random import randint
from struct import unpack
from socket import inet_ntoa
from threading import Timer, Thread
from time import sleep

reload(sys)
sys.setdefaultencoding("utf-8")

sys.path.append('/usr/local/lib/python2.7/site-packages')

# import pygeoip
import MySQLdb as mdb


from configparser import ConfigParser
cp = ConfigParser()
cp.read("../qb.conf")
section_db = cp.sections()[0]
DB_HOST = cp.get(section_db, "DB_HOST")
DB_USER = cp.get(section_db, "DB_USER")
DB_PORT = cp.getint(section_db, "DB_PORT")
DB_PASS = cp.get(section_db, "DB_PASS")
DB_NAME = cp.get(section_db, "DB_NAME")


section_qb = cp.sections()[1]
QB_HOST = cp.get(section_qb, "QB_HOST")
QB_PORT = cp.get(section_qb, "QB_PORT")
QB_USER = cp.get(section_qb, "QB_USER")
QB_PWD = cp.get(section_qb, "QB_PWD")

section_file = cp.sections()[2]
FILE_TO = cp.get(section_file, "FILE_TO")
FILE_TRANSFER_TO = cp.get(section_file, "FILE_TRANSFER_TO")
FILE_OWN = cp.get(section_file, "FILE_OWN")
FILE_GROUP = cp.get(section_file, "FILE_GROUP")

section_task = cp.sections()[3]
TASK_RATE = cp.getint(section_task, "TASK_RATE")
TASK_COMPLETED_RATE = cp.getint(section_task, "TASK_COMPLETED_RATE")


class downloadBT(Thread):

    def __init__(self):
        Thread.__init__(self)
        self.setDaemon(True)
        self.dbconn = mdb.connect(
            DB_HOST, DB_USER, DB_PASS, DB_NAME, port=DB_PORT, charset='utf8')
        self.dbconn.autocommit(False)
        self.dbcurr = self.dbconn.cursor()
        self.dbcurr.execute('SET NAMES utf8')
        self.qb = self.qb()
        self.has_suffix = ['.mp4']

    def query(self, sql):
        self.dbcurr.execute(sql)
        result = self.dbcurr.fetchall()
        data = map(list, result)
        return data

    def qb(self):
        from qbittorrent import Client
        url = 'http://' + QB_HOST + ':' + QB_PORT + '/'
        qb = Client(url)
        qb.login(QB_USER, QB_PWD)
        return qb

    def execShell(self, cmdstring, cwd=None, timeout=None, shell=True):
        import subprocess
        if shell:
            cmdstring_list = cmdstring
        else:
            cmdstring_list = shlex.split(cmdstring)
        if timeout:
            end_time = datetime.datetime.now() + datetime.timedelta(seconds=timeout)

        sub = subprocess.Popen(cmdstring_list, cwd=cwd, stdin=subprocess.PIPE,
                               shell=shell, bufsize=4096, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

        while sub.poll() is None:
            time.sleep(0.1)
            if timeout:
                if end_time <= datetime.datetime.now():
                    raise Exception("Timeout：%s" % cmdstring)

        return sub.communicate()

    def md5(self, str):
        # 生成MD5
        try:
            m = hashlib.md5()
            m.update(str)
            return m.hexdigest()
        except:
            return False

    def get_transfer_dir(self, to):
        return FILE_TRANSFER_TO + '/' + to

    def fg_transfer_cmd(self, file, to_file):
        cmd = 'ffmpeg -y -i ' + file + \
            ' -vcodec copy -acodec copy -vbsf h264_mp4toannexb ' + to_file + '.ts'
        return cmd

    def fg_m3u8_cmd(self, ts_file, to_file):
        cmd = 'ffmpeg -i ' + file + ' -c copy -map 0 -f segment -segment_list -bsf:v h264_mp4toannexb ' + \
            ts_file + ' -segment_time 5 ' + to_file
        return cmd

    def ffmpeg(self, file=''):
        md5file = self.md5(file)[0:6]
        tdfile = self.get_transfer_dir(md5file)

        m3u8_dir = FILE_TO + '/m3u8/' + md5file
        self.execShell('mkdir -p ' + m3u8_dir)

        cmd_tc = self.fg_transfer_cmd(file, tdfile)
        print 'cmd_tc:', cmd_tc
        data_tc = self.execShell(cmd_tc)
        print 'tc:', data_tc

        m3u8_file = m3u8_dir + '/' + md5file + '.m3u8'
        tofile = FILE_TO + '/m3u8/' + md5file + '/%03d.ts'
        cmd_mc = self.fg_m3u8_cmd(tdfile, tofile)
        print 'cmd_mc:', cmd_mc
        data_mc = self.execShell(cmd_tc)
        print 'mc:', data_mc

        self.execShell('chown -R ' + FILE_OWN + ':' +
                       FILE_GROUP + ' ' + m3u8_dir)

    def file_arr(self, path, filters=['.DS_Store']):
        file_list = []
        flist = os.listdir(path)
        # print flist
        for i in range(len(flist)):
            file_path = os.path.join(path, flist[i])
            if flist[i] in filters:
                continue
            if os.path.isdir(file_path):
                tmp = self.file_arr(file_path, filters)
                file_list.extend(tmp)
            else:
                file_list.append(file_path)
        return file_list

    def find_dir_video(self, path):
        flist = self.file_arr(path)
        video = []
        for i in range(len(flist)):
            t = os.path.splitext(flist[i])
            if t[1] in self.has_suffix:
                video.append(flist[i])
        return video

    def video_do(self, path):
        if os.path.isfile(path):
            t = os.path.splitext(path)
            if t[1] in self.has_suffix:
                self.ffmpeg(path)
        else:
            vlist = self.find_dir_video(path)
            for i in range(len(vlist)):
                self.ffmpeg(vlist[i])
        return ''

    def checkTask(self):
        while True:
            torrents = self.qb.torrents(filter='downloading')
            tlen = len(torrents)
            if tlen > 0:
                print "downloading torrents count:", tlen
                for torrent in torrents:
                    print torrent['name'], ' task downloading!'
            else:
                print time.time(), "no task!"
            time.sleep(TASK_RATE)

    def completed(self):
        while True:
            torrents = self.qb.torrents(filter='completed')
            tlen = len(torrents)
            print "completed torrents count:", tlen
            if tlen > 0:
                for torrent in torrents:
                    path = torrent['save_path'] + torrent['name']
                    self.video_do(path)
                print time.time(), "done task!"
            else:
                print time.time(), "no task!"
            time.sleep(TASK_COMPLETED_RATE)


def test():
    while True:
        print time.time(), "no download task!",
        time.sleep(1)
        test()

if __name__ == "__main__":

    dl = downloadBT()

    import threading
    task = threading.Thread(target=dl.checkTask)
    task.start()

    completed = threading.Thread(target=dl.completed)
    completed.start()

    # test()