# -*- coding: utf-8 -*-
#!/usr/bin/python

import pymysql
import hashlib
import json
import urllib.request
import base64
import tornado.ioloop
import tornado.web
import time
import datetime
import redis
import os
import functools

CONFIG_DIR = ''

def IsOnlineEnv():
    return os.getenv("SERVER_ENV");

if (IsOnlineEnv()):
    CONFIG_DIR = '/var/data/conf_test/game2003api_rankserver/config'
else:
    CONFIG_DIR = '../config'

def info(msg):
    print(str(datetime.datetime.now()) + '[INFO] ' + msg)

def take_pass(elem):
    return elem[3]

def take_coin_num(elem):
    return elem[4]

def safeDiv(a, b):
    if b == 0:
        return 0
    else:
        return a / b

#获取channel
def getChannel(a):
    str_list = a.split('_')
    if len(str_list) < 3:
        return 0
    return str_list[0]

def getRedis():
    redis_conf = json.loadsmysql_conf = json.loads(open(CONFIG_DIR + '/rankserver.redis.cluster.json', 'r').read())
    for conf in redis_conf:
        r = redis.Redis(host = conf['host'],
                        port = conf['port'],
                        password = conf['passwd'],
                        charset = 'utf8'
        )
    return r;

def getRedisConf():
    redis_conf = json.loads(open(CONFIG_DIR + '/rankserver.redis.cluster.json', 'r').read())
    return redis_conf;

def getDaySeconds(time_val, incdays):
    time_zone = 8
    dayseconds = int((time_val + time_zone * 3600)/3600/24 + incdays) * 3600 * 24 - 3600 * time_zone;
    return dayseconds

#数据去重
def delRepeatData(row, data_list):
    temp_list = []
    for data in data_list:
        if data[0] == row[0]:
            temp_list.append(data)
    for temp_data in temp_list:
        data_list.remove(temp_data)

#刷新通关数据
def refreshData(row, pass_list):
    pass_list.append((row[0], row[1].decode('utf-8'), row[2], row[3], row[4]))
    pass_list.sort(key=take_pass, reverse=True)
    if (len(pass_list) > 50):
        del pass_list[50:]

#更新排行榜
def updateRank(r, channel, pass_list):
    pass_list.sort(key=take_pass, reverse=True)
    pass_rank = []
    for pass_index in range(min(50, len(pass_list))):
        pass_rank.append(pass_list[pass_index])
    r.set("game2003api:pass_rank_" + channel, json.dumps(pass_rank))

def internalDayReadMysqlData():
    mysql_conf = json.loads(open(CONFIG_DIR + '/rankserver.mysql.cluster.json', 'r').read())
    rank_hash = {}
    for conf in mysql_conf:
        conn = pymysql.connect(host = conf['host'],
                               port = conf['port'],
                               user = conf['user'],
                               passwd = conf['passwd'],
                               db = 'gamedb2003_' + str(conf['instance_id']),
                               charset = 'utf8'
        )
        cursor = conn.cursor()
        last_idx = 0
        temp_idx = 0
        while 1:
            cursor.execute('SELECT accountid, user_name, avatar_url, pass, cumul_coin, idx '
                           'FROM user WHERE idx > %s LIMIT 0, 5000' % (last_idx))
            has_data = False
            for row in cursor:
                has_data = True
                #更新通关榜
                channel = getChannel(row[0])
                if channel not in rank_hash:
                    rank_hash[channel] = []
                refreshData(row, rank_hash[channel])
                last_idx = max(row[5], last_idx)
            time.sleep(0.001);
            if not has_data:
                break
    r = getRedis()
    for channel in rank_hash:
        updateRank(r, channel, rank_hash[channel])

#每日定时读取mysql里的数据生成排行榜写入redis后php读取redis返回客户端显示
def dayReadMysqlData(rushtime):
    internalDayReadMysqlData()
    tornado.ioloop.IOLoop.current().call_at(getDaySeconds(time.time(), 1) + rushtime,
                                               lambda : dayReadMysqlData(rushtime)
    )

#每5分钟读取mysql里发生改变过的数据更新排行榜
def readMysqlData(rushtime):
    mysql_conf = json.loads(open(CONFIG_DIR + '/rankserver.mysql.cluster.json', 'r').read())
    r = getRedis()
    rank_hash = {}
    for conf in mysql_conf:
        conn = pymysql.connect(host = conf['host'],
                               port = conf['port'],
                               user = conf['user'],
                               passwd = conf['passwd'],
                               db = 'gamedb2003_' + str(conf['instance_id']),
                               charset = 'utf8'
        )
        cursor = conn.cursor()
        last_idx = 0
        temp_idx = 0
        while 1:
            cursor.execute('SELECT accountid, user_name, avatar_url, pass, cumul_coin, idx, modify_time FROM user '
                           ' WHERE modify_time > %s AND idx > %s LIMIT 0, 1000' % (time.time() - 300, last_idx))
            has_data = False
            for row in cursor:
                has_data = True
                channel = getChannel(row[0])
                if channel not in rank_hash:
                    rank_list = r.get('game2003api:pass_rank_' + channel)
                    rank_hash[channel] = [] if not rank_list else json.loads(rank_list)
                #更新通关榜
                delRepeatData(row, rank_hash[channel])
                refreshData(row, rank_hash[channel])
                temp_idx = int(row[5])
                if (temp_idx > last_idx) :
                    last_idx = int(row[5])
            time.sleep(0.001);
            if not has_data:
                break

    for channel in rank_hash:
        updateRank(r, channel, rank_hash[channel])

    tornado.ioloop.IOLoop.current().call_later(rushtime,
                                               lambda : readMysqlData(rushtime)
    )

class SelfCheckingHandler(tornado.web.RequestHandler):

    def get(self):
        self.write(json.dumps({
            'errcode': 0,
            'errmsg': '',
            'healthy': 1,
            'max_rundelay': 10
        }))

def make_app():
    return tornado.web.Application([
        (r"/webapp/index[\.]php", SelfCheckingHandler),
    ])

if __name__ == "__main__":
    conf = json.loads(open(CONFIG_DIR + '/rankserver.json', 'r').read())

    app = make_app()
    app.listen(conf['listen_port'])
    conf['rushtime'] = 5
    tornado.ioloop.IOLoop.current().call_later(conf['rushtime'],
                                               lambda : readMysqlData(conf['rushtime'])
    )

    conf['day_rushtime'] = 5 * 3600
    tornado.ioloop.IOLoop.current().call_at(getDaySeconds(time.time(), 1) + conf['day_rushtime'],
                                            lambda : dayReadMysqlData(conf['day_rushtime'])
    )
    tornado.ioloop.IOLoop.current().start()