from path import path
from PIL import Image

from django.conf import settings

from misago.users.avatars import cache
from misago.users.avatars.paths import MEDIA_AVATARS


def get_available_galleries():
    """
    Returns list of dicts containing 'name' and list of images

    Only jpgs, gifs and pngs are supported avatar images.
    Galleries are
    """
    galleries = []

    for directory in path(MEDIA_AVATARS).dirs():
        if directory[-8:] != '_default':
            gallery = {'name': directory.name, 'images': []}

            images = directory.files('*.gif')
            images += directory.files('*.jpg')
            images += directory.files('*.jpeg')
            images += directory.files('*.png')

            for image in images:
                gallery['images'].append(image[len(settings.MEDIA_ROOT):])

            if gallery['images']:
                galleries.append(gallery)

    return galleries


def galleries_exist():
    return bool(get_available_galleries())


def is_avatar_from_gallery(image_path):
    for gallery in get_available_galleries():
        if image_path in gallery['images']:
            return True
    else:
        return False


def set_avatar(user, gallery_image_path):
    image = Image.open(settings.MEDIA_ROOT + gallery_image_path)
    cache.store_new_avatar(user, image)


def set_random_avatar(user):
    pass