#! /usr/bin/env python3

import base64
import os
import sys

os.chdir(sys.argv[1])

data_uris = []
for filename in os.listdir('img/'):
    varname, filetype = os.path.splitext(filename)
    mimetype = {'.png': 'image/png', '.svg': 'image/svg+xml'}.get(filetype)
    if not mimetype:
        continue
    filesize = os.stat('img/' + filename).st_size
    if filesize > 10000:
        continue
    filecontent = open('img/' + filename, 'rb').read()
    b64 = base64.encodebytes(filecontent).decode('ascii').replace('\n', '')
    data_uris.append('$data_uri_%(varname)s: "data:%(mimetype)s;base64,%(b64)s" !default;' % locals())

open('_data_uris.scss', 'w').write('\n'.join(data_uris))