import os

from os.path import join, dirname

from shutil import rmtree

import errno

import tempfile

from unittest import TestCase, main

from cubicweb.web.propertysheet import PropertySheet, lazystr

DATADIR = join(dirname(__file__), 'data')

class PropertySheetTC(TestCase):

    def setUp(self):

        uicache = join(DATADIR, 'uicache')

        try:

            os.makedirs(uicache)

        except OSError as err:

            if err.errno != errno.EEXIST:

                raise

        self.cachedir = tempfile.mkdtemp(dir=uicache)

    def tearDown(self):

        rmtree(self.cachedir)

    def data(self, filename):

        return join(DATADIR, filename)

    def test(self):

        ps = PropertySheet(self.cachedir, datadir_url='http://cwtest.com')

        ps.load(self.data('sheet1.py'))

        ps.load(self.data('sheet2.py'))

        # defined by sheet1

        self.assertEqual(ps['logo'], 'http://cwtest.com/logo.png')

        # defined by sheet1, overriden by sheet2

        self.assertEqual(ps['bgcolor'], '#FFFFFF')

        # defined by sheet2

        self.assertEqual(ps['fontcolor'], 'black')

        # defined by sheet1, extended by sheet2

        self.assertEqual(ps['stylesheets'], ['http://cwtest.com/cubicweb.css',

                                              'http://cwtest.com/mycube.css'])

        # lazy string defined by sheet1

        self.assertIsInstance(ps['lazy'], lazystr)

        self.assertEqual(str(ps['lazy']), '#FFFFFF')

        # test compilation

        self.assertEqual(ps.compile('a {bgcolor: %(bgcolor)s; size: 1%;}'),

                          'a {bgcolor: #FFFFFF; size: 1%;}')

        self.assertEqual(ps.process_resource(DATADIR, 'pouet.css'),

                         self.cachedir)

        self.assertIn('pouet.css', ps._cache)

        self.assertFalse(ps.need_reload())

        os.utime(self.data('sheet1.py'), None)

        self.assertIn('pouet.css', ps._cache)

        self.assertTrue(ps.need_reload())

        self.assertIn('pouet.css', ps._cache)

        ps.reload()

        self.assertNotIn('pouet.css', ps._cache)

        self.assertFalse(ps.need_reload())

        ps.process_resource(DATADIR, 'pouet.css') # put in cache

        os.utime(self.data('pouet.css'), None)

        self.assertFalse(ps.need_reload())

        self.assertNotIn('pouet.css', ps._cache)

if __name__ == '__main__':

    main()