from django.core.files.storage import FileSystemStorage

from easy_thumbnails.conf import settings


class ThumbnailFileSystemStorage(FileSystemStorage):
    """
    Standard file system storage.

    The default ``location`` and ``base_url`` are set to
    ``THUMBNAIL_MEDIA_ROOT`` and ``THUMBNAIL_MEDIA_URL``, falling back to the
    standard ``MEDIA_ROOT`` and ``MEDIA_URL`` if the custom settings are blank.
    """
    def __init__(self, location=None, base_url=None, *args, **kwargs):
        if location is None:
            location = settings.THUMBNAIL_MEDIA_ROOT or None
        if base_url is None:
            base_url = settings.THUMBNAIL_MEDIA_URL or None
        super(ThumbnailFileSystemStorage, self).__init__(
            location, base_url, *args, **kwargs)
