#!/usr/bin/env python3.5
# -*-coding:UTF-8 -*
"""
The ZMQ_Feed_Q Module
=====================

This module is consuming the Redis-list created by the ZMQ_Feed_Q Module,
And save the paste on disk to allow others modules to work on them.

..todo:: Be able to choose to delete or not the saved paste after processing.
..todo:: Store the empty paste (unprocessed) somewhere in Redis.

..note:: Module ZMQ_Something_Q and ZMQ_Something are closely bound, always put
the same Subscriber name in both of them.

Requirements
------------

*Need running Redis instances.
*Need the ZMQ_Feed_Q Module running to be able to work properly.

"""
import base64
import os
import time
from pubsublogger import publisher

from Helper import Process

import magic
import io
import gzip

def gunzip_bytes_obj(bytes_obj):
    in_ = io.BytesIO()
    in_.write(bytes_obj)
    in_.seek(0)
    with gzip.GzipFile(fileobj=in_, mode='rb') as fo:
        gunzipped_bytes_obj = fo.read()

    return gunzipped_bytes_obj.decode()

if __name__ == '__main__':
    publisher.port = 6380
    publisher.channel = 'Script'
    processed_paste = 0
    time_1 = time.time()

    config_section = 'Global'

    p = Process(config_section)

    # LOGGING #
    publisher.info("Feed Script started to receive & publish.")

    while True:

        message = p.get_from_set()
        #print(message)
        # Recovering the streamed message informations.
        if message is not None:
            splitted = message.split()
            if len(splitted) == 2:
                paste, gzip64encoded = splitted
            else:
                # TODO Store the name of the empty paste inside a Redis-list.
                print("Empty Paste: not processed")
                publisher.debug("Empty Paste: {0} not processed".format(message))
                continue
        else:
            print("Empty Queues: Waiting...")
            if int(time.time() - time_1) > 30:
                to_print = 'Global; ; ; ;glob Processed {0} paste(s)'.format(processed_paste)
                print(to_print)
                #publisher.info(to_print)
                time_1 = time.time()
                processed_paste = 0
            time.sleep(1)
            continue
        # Creating the full filepath
        filename = os.path.join(os.environ['AIL_HOME'],
                                p.config.get("Directories", "pastes"), paste)
        
        dirname = os.path.dirname(filename)
        if not os.path.exists(dirname):
            os.makedirs(dirname)

        decoded = base64.standard_b64decode(gzip64encoded)

        with open(filename, 'wb') as f:
            f.write(decoded)
        try:
            decoded2 = gunzip_bytes_obj(decoded)
        except:
            decoded2 =''

        type = magic.from_buffer(decoded2, mime=True)

        if type!= 'text/x-c++' and type!= 'text/html' and type!= 'text/x-c' and type!= 'text/x-python' and type!= 'text/x-php' and type!= 'application/xml' and type!= 'text/x-shellscript' and type!= 'text/plain' and type!= 'text/x-diff' and type!= 'text/x-ruby':

            print('-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------')
            print(filename)
            print(type)
            print(decoded2)
            print('-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------')

        p.populate_set_out(filename)
        processed_paste+=1