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

from elasticsearch import Elasticsearch
from esdata2mongo import Es2Mongo
import multiprocessing
import datetime
import sys
import redis
import time
import logging

# settings
redis_ip = "127.0.0.1"
redis_port = 6379

def index_list(some_days_ago):

    '''
    some_days_ago: 
    any days befor today. 
    '''

    indices = []
    for hour in range(0, 24):
        hour = "%02d" % hour
        index = "%s-%s.%s" % ("logstash-trace", (datetime.datetime.now() -
                                                 datetime.timedelta(days=some_days_ago)).strftime("%Y.%m.%d"), hour)
        indices.append(index)
    return indices


def logsetting(logname):
    logger = logging.getLogger(__name__)
    logger.setLevel(level=logging.INFO)
    handler = logging.FileHandler(logname + '.log')
    handler.setLevel(logging.INFO)
    formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
    handler.setFormatter(formatter)
    logger.addHandler(handler)
    return logger


def progress2log(some_days_ago):
    indices = index_list(some_days_ago)
    logname = '-'.join(indices[0].split('.')[:-1])
    logger = logsetting(logname)
    r = redis.StrictRedis(host=redis_ip, port=redis_port, db=0)
    n = 0
    while n != 24:
        for index in indices:	 
            key, field=Es2Mongo(index, 2000).FormatDBName()       
            value = r.hget(key, field)
            if n == 24:
                return 1
            if value == 1:
            	logger.info("%s %s" % (index, "Data Processing Complete."))
                n += 1
            else:
                logger.info("%s %s" % (index, value))
        time.sleep(30)


def run(some_days_ago):
    plist = []
    indices = index_list(some_days_ago)
    for index in indices:
        p = Es2Mongo(index, 2000)
        process = multiprocessing.Process(target=p.es2mongo, args=(1,))
        plist.append(process)
    p1 = multiprocessing.Process(
            target=progress2log, args=(some_days_ago,))
    plist.append(p1)
    for p in plist:
        p.start()
    print "all job are running..."


if __name__ == "__main__":
    if len(sys.argv) < 2:
        print "you need to specify parameters."
        sys.exit(1)
    some_days_ago = int(sys.argv[1])
    run(some_days_ago)