import sys

import os

from os.path import dirname, join, abspath

from tempfile import mktemp

from logilab.common.testlib import TestCase, unittest_main

from logilab.common.changelog import Version

from cubicweb.devtools import ApptestConfiguration

def unabsolutize(path):

    parts = path.split(os.sep)

    for i, part in reversed(tuple(enumerate(parts))):

        if part.startswith('cubicweb') or part == 'cubes':

            return '/'.join(parts[i+1:])

    raise Exception('duh? %s' % path)

class CubicWebConfigurationTC(TestCase):

    def setUp(self):

        self.config = ApptestConfiguration('data')

        self.config._cubes = ('email', 'file')

    def tearDown(self):

        os.environ.pop('CW_CUBES_PATH', None)

    def test_reorder_cubes(self):

        # jpl depends on email and file and comment

        # email depends on file

        self.assertEquals(self.config.reorder_cubes(['file', 'email', 'jpl']),

                          ('jpl', 'email', 'file'))

        self.assertEquals(self.config.reorder_cubes(['email', 'file', 'jpl']),

                          ('jpl', 'email', 'file'))

        self.assertEquals(self.config.reorder_cubes(['email', 'jpl', 'file']),

                          ('jpl', 'email', 'file'))

        self.assertEquals(self.config.reorder_cubes(['file', 'jpl', 'email']),

                          ('jpl', 'email', 'file'))

        self.assertEquals(self.config.reorder_cubes(['jpl', 'file', 'email']),

                          ('jpl', 'email', 'file'))

        self.assertEquals(self.config.reorder_cubes(('jpl', 'email', 'file')),

                          ('jpl', 'email', 'file'))

    def test_reorder_cubes_recommends(self):

        from cubes.comment import __pkginfo__ as comment_pkginfo

        comment_pkginfo.__recommend__ = ('file',)

        try:

            # email recommends comment

            # comment recommends file

            self.assertEquals(self.config.reorder_cubes(('jpl', 'email', 'file', 'comment')),

                              ('jpl', 'email', 'comment', 'file'))

            self.assertEquals(self.config.reorder_cubes(('jpl', 'email', 'comment', 'file')),

                              ('jpl', 'email', 'comment', 'file'))

            self.assertEquals(self.config.reorder_cubes(('jpl', 'comment', 'email', 'file')),

                              ('jpl', 'email', 'comment', 'file'))

            self.assertEquals(self.config.reorder_cubes(('comment', 'jpl', 'email', 'file')),

                              ('jpl', 'email', 'comment', 'file'))

        finally:

            comment_pkginfo.__use__ = ()

#     def test_vc_config(self):

#         vcconf = self.config.vc_config()

#         self.assertIsInstance(vcconf['EEMAIL'], Version)

#         self.assertEquals(vcconf['EEMAIL'], (0, 3, 1))

#         self.assertEquals(vcconf['CW'], (2, 31, 2))

#         self.assertRaises(KeyError, vcconf.__getitem__, 'CW_VERSION')

#         self.assertRaises(KeyError, vcconf.__getitem__, 'CRM')

    def test_expand_cubes(self):

        self.assertEquals(self.config.expand_cubes(('email', 'eblog')),

                          ['email', 'eblog', 'file'])

    def test_vregistry_path(self):

        self.assertEquals([unabsolutize(p) for p in self.config.vregistry_path()],

                          ['entities', 'web/views', 'sobjects',

                           'file/entities.py', 'file/views', 'file/hooks.py',

                           'email/entities.py', 'email/views', 'email/hooks.py',

                           'test/data/entities.py'])

    def test_cubes_path(self):

        # make sure we don't import the email cube, but the stdlib email package

        import email

        self.assertNotEquals(dirname(email.__file__), self.config.CUBES_DIR)

        os.environ['CW_CUBES_PATH'] = join(dirname(__file__), 'data', 'cubes')

        self.assertEquals(self.config.cubes_search_path(),

                          [abspath(join(dirname(__file__), 'data', 'cubes')),

                           self.config.CUBES_DIR])

        os.environ['CW_CUBES_PATH'] = '%s%s%s%s%s' % (join(dirname(__file__), 'data', 'cubes'),

                                                      os.pathsep, self.config.CUBES_DIR,

                                                      os.pathsep, 'unexistant')

        # filter out unexistant and duplicates

        self.assertEquals(self.config.cubes_search_path(),

                          [abspath(join(dirname(__file__), 'data', 'cubes')),

                           self.config.CUBES_DIR])

        self.failUnless('mycube' in self.config.available_cubes())

        # test cubes python path

        self.config.adjust_sys_path()

        import cubes

        self.assertEquals(cubes.__path__, self.config.cubes_search_path())

        # this import should succeed once path is adjusted

        from cubes import mycube

        self.assertEquals(mycube.__path__, [abspath(join(dirname(__file__), 'data', 'cubes', 'mycube'))])

        # file cube should be overriden by the one found in data/cubes

        sys.modules.pop('cubes.file', None)

        del cubes.file

        from cubes import file

        self.assertEquals(file.__path__, [abspath(join(dirname(__file__), 'data', 'cubes', 'file'))])

if __name__ == '__main__':

    unittest_main()