#!/usr/bin/env python
#-*- coding: utf-8 -*-
#
# Moudel providing the method oe the Ads
# __author__ = Tom
# __date__   = 2017/03/09
# __email__  = [email protected]
# __version__ = v0.1.dev


# python core API
import os
import time
import random

# django API
from django.conf import settings
from django.http import HttpResponse
from django.core.files.storage import FileSystemStorage


# modify the name of file
class FileStorage(FileSystemStorage):
    """

    """
    def __init__(self, location=settings.MEDIA_ROOT, base_url=settings.MEDIA_URL):
        super(FileStorage, self).__init__(location, base_url)


    """
     over
    """
    def save(self, name, content):
        """
            Help on function splitext in module ntpath:

            splitext(p)
                Split the extension from a pathname.

                Extension is everything from the last dot to the end, ignoring
                leading dots.  Returns "(root, ext)"; ext may be empty.

            >>> os.path.splitext('ssss.ssss.txt')
            ('ssss.ssss', '.txt')
            >>> os.path.splitext('ssss.ssss.txt')[1]
            '.txt'
            >>>
        """

        ext = os.path.splitext(name)[1]
        """
         path:/var/lib/xxx.txt

         dir = os.path.abspath(os.path.dirname('/var/lib/xxx.txt'))
         return /var/lib/


        """
        dirname = os.path.dirname(name)

        fn = time.strftime('%Y%m%d%H%M%S')
        fn = fn +'_%d' % random.randint(0, 100)
        name = os.path.join(dirname, fn+ext)
        return super(FileStorage, self)._save(name, content)