"""
    Top-level gallery state
"""

import filesystem, folder

from utils import lazy_load

class Gallery (filesystem.Root, folder.Folder) :
    """
        A Gallery is a single place in the filesystem which acts as a Folder of Images, but had some additional stuff
    """
    
    def _init_config (self) :
        """
            Keep using our given .config
        """

        return self.config

    def __init__ (self, path, config) :
        """
            Build a Gallery rooted at the given filesystem path, and using the given user configuration.

            XXX: replace path with config.gallery_path?
        """

        # store config for access by Folder.__init__
        self.config = config
        
        # cooperative
        super(Gallery, self).__init__(path)

    @property
    def _app_dir (self) :
        """
            The dir containing our application data.
        """

        return self.subdir('.degal')

    @lazy_load
    def app_dir (self) :
        """
            The dir containing our application data.

            It will be created if it does not exist.
        """

        return self.subdir('.degal', create=True)
    
    @lazy_load
    def stylesheet (self) :
        """
            The stylesheet file.

            It will be copied from internal resources if it does not exist.
        """

        stylesheet = self.app_dir.subfile('style.css')
        
        if not stylesheet.exists() :
            # load the resources dir
            from resources import STATIC_DIR

            # copy it from the static resource file
            stylesheet.copy_from(STATIC_DIR.subfile('style.css'))
        
        # elif stylesheet-is-older-than-resources-one: warn

        return stylesheet