import os
import sys
import json
import time
import datetime
import traceback
import logging
import logging.handlers

import pika
import boto3
from botocore.client import Config



###############################################
#               Logger Setting                #
###############################################
logger = logging.getLogger()
logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')

log_fileHandler = logging.handlers.RotatingFileHandler(
    filename=os.path.join(os.getcwd(), "send_and_pub.log"),
    maxBytes=1024000,
    backupCount=3,
    mode='a')

log_fileHandler.setFormatter(formatter)
logger.addHandler(log_fileHandler)

logging.getLogger("pika").setLevel(logging.WARNING)


################################################################################
#                                      Config                                  #
################################################################################

HOME_DIR = os.getcwd()

with open(os.path.join(HOME_DIR,'config/send_and_pub_config.json'), 'r') as f:
    info = json.load(f)

################################################################################
#                                   S3 Set up                                  #
################################################################################

s3 = boto3.resource('s3',
        endpoint_url = info['Minio_url'],
        aws_access_key_id=info['AccessKey'],
        aws_secret_access_key=info['SecretKey'],
        config=Config(signature_version=info['Boto3SignatureVersion']),
        region_name=info['Boto3RegionName']
)


class Publisher:
    def __init__(self):
        self.__url = info['amqp_url']
        self.__port = info['amqp_port']
        self.__vhost = info['amqp_vhost']
        self.__cred = pika.PlainCredentials(info['amqp_id'], info['amqp_pw'])
        self.__queue = info['amqp_queue']


    def pub(self, body: dict):
        try:
            conn = pika.BlockingConnection(pika.ConnectionParameters(self.__url,
                                                                     self.__port,
                                                                     self.__vhost,
                                                                     self.__cred))
            chan = conn.channel()
            chan.basic_publish(exchange='',
                               routing_key=self.__queue,
                               body=json.dumps(body))
            conn.close()
            return
        except Exception as e:
            print(traceback.format_exc())




def main():
    publisher = Publisher()
    logger.info(f"Config Check {info}")
    while True:
       if not os.path.exists(info['file_save_path']):
           os.makedirs(info['file_save_path'])
           logger.info(f"Make_directory {info['file_save_path']}")

       file_list = os.listdir(info['file_save_path'])
       if(len(file_list) == 0):
           logger.info(f"Folder is empty! send data after {info['send_interval']} sec")
           time.sleep(info['send_interval'])
           continue

       for file_name in file_list:
           local_file_path = os.path.join(info['file_save_path'],file_name)
           remote_save_path = os.path.join(info['remote_save_path'],file_name)
           s3.Bucket(info['BucketName']).upload_file(local_file_path,remote_save_path)
           send_info={
                   "timestamp":int(time.time()*1000),
                   "from":local_file_path,
                   "to": {"Bucket":info['BucketName'],"filename":remote_save_path}
           }
           publisher.pub(send_info)
           logger.info("Send Message")
           if(info['delete_sended_file_flag']==True):
               os.remove(local_file_path)
               print(f"Remove {local_file_path}")


if __name__ == '__main__':
    main()