import os
import unittest
from rhodecode.tests import *

from rhodecode.model.repos_group import ReposGroupModel
from rhodecode.model.repo import RepoModel
from rhodecode.model.db import RepoGroup, User
from rhodecode.model.meta import Session
from sqlalchemy.exc import IntegrityError


def _make_group(path, desc='desc', parent_id=None,
                 skip_if_exists=False):

    gr = RepoGroup.get_by_group_name(path)
    if gr and skip_if_exists:
        return gr

    gr = ReposGroupModel().create(path, desc, parent_id)
    return gr


class TestReposGroups(unittest.TestCase):

    def setUp(self):
        self.g1 = _make_group('test1', skip_if_exists=True)
        Session().commit()
        self.g2 = _make_group('test2', skip_if_exists=True)
        Session().commit()
        self.g3 = _make_group('test3', skip_if_exists=True)
        Session().commit()

    def tearDown(self):
        print 'out'

    def __check_path(self, *path):
        """
        Checks the path for existance !
        """
        path = [TESTS_TMP_PATH] + list(path)
        path = os.path.join(*path)
        return os.path.isdir(path)

    def _check_folders(self):
        print os.listdir(TESTS_TMP_PATH)

    def __delete_group(self, id_):
        ReposGroupModel().delete(id_)

    def __update_group(self, id_, path, desc='desc', parent_id=None):
        form_data = dict(
            group_name=path,
            group_description=desc,
            group_parent_id=parent_id,
            perms_updates=[],
            perms_new=[]
        )
        gr = ReposGroupModel().update(id_, form_data)
        return gr

    def test_create_group(self):
        g = _make_group('newGroup')
        self.assertEqual(g.full_path, 'newGroup')

        self.assertTrue(self.__check_path('newGroup'))

    def test_create_same_name_group(self):
        self.assertRaises(IntegrityError, lambda: _make_group('newGroup'))
        Session().rollback()

    def test_same_subgroup(self):
        sg1 = _make_group('sub1', parent_id=self.g1.group_id)
        self.assertEqual(sg1.parent_group, self.g1)
        self.assertEqual(sg1.full_path, 'test1/sub1')
        self.assertTrue(self.__check_path('test1', 'sub1'))

        ssg1 = _make_group('subsub1', parent_id=sg1.group_id)
        self.assertEqual(ssg1.parent_group, sg1)
        self.assertEqual(ssg1.full_path, 'test1/sub1/subsub1')
        self.assertTrue(self.__check_path('test1', 'sub1', 'subsub1'))

    def test_remove_group(self):
        sg1 = _make_group('deleteme')
        self.__delete_group(sg1.group_id)

        self.assertEqual(RepoGroup.get(sg1.group_id), None)
        self.assertFalse(self.__check_path('deteteme'))

        sg1 = _make_group('deleteme', parent_id=self.g1.group_id)
        self.__delete_group(sg1.group_id)

        self.assertEqual(RepoGroup.get(sg1.group_id), None)
        self.assertFalse(self.__check_path('test1', 'deteteme'))

    def test_rename_single_group(self):
        sg1 = _make_group('initial')

        new_sg1 = self.__update_group(sg1.group_id, 'after')
        self.assertTrue(self.__check_path('after'))
        self.assertEqual(RepoGroup.get_by_group_name('initial'), None)

    def test_update_group_parent(self):

        sg1 = _make_group('initial', parent_id=self.g1.group_id)

        new_sg1 = self.__update_group(sg1.group_id, 'after', parent_id=self.g1.group_id)
        self.assertTrue(self.__check_path('test1', 'after'))
        self.assertEqual(RepoGroup.get_by_group_name('test1/initial'), None)

        new_sg1 = self.__update_group(sg1.group_id, 'after', parent_id=self.g3.group_id)
        self.assertTrue(self.__check_path('test3', 'after'))
        self.assertEqual(RepoGroup.get_by_group_name('test3/initial'), None)

        new_sg1 = self.__update_group(sg1.group_id, 'hello')
        self.assertTrue(self.__check_path('hello'))

        self.assertEqual(RepoGroup.get_by_group_name('hello'), new_sg1)

    def test_subgrouping_with_repo(self):

        g1 = _make_group('g1')
        g2 = _make_group('g2')

        # create new repo
        form_data = dict(repo_name='john',
                         repo_name_full='john',
                         fork_name=None,
                         description=None,
                         repo_group=None,
                         private=False,
                         repo_type='hg',
                         clone_uri=None,
                         landing_rev='tip')
        cur_user = User.get_by_username(TEST_USER_ADMIN_LOGIN)
        r = RepoModel().create(form_data, cur_user)

        self.assertEqual(r.repo_name, 'john')

        # put repo into group
        form_data = form_data
        form_data['repo_group'] = g1.group_id
        form_data['perms_new'] = []
        form_data['perms_updates'] = []
        RepoModel().update(r.repo_name, form_data)
        self.assertEqual(r.repo_name, 'g1/john')

        self.__update_group(g1.group_id, 'g1', parent_id=g2.group_id)
        self.assertTrue(self.__check_path('g2', 'g1'))

        # test repo
        self.assertEqual(r.repo_name, RepoGroup.url_sep().join(['g2', 'g1',
                                                                r.just_name]))

    def test_move_to_root(self):
        g1 = _make_group('t11')
        Session().commit()
        g2 = _make_group('t22', parent_id=g1.group_id)
        Session().commit()

        self.assertEqual(g2.full_path, 't11/t22')
        self.assertTrue(self.__check_path('t11', 't22'))

        g2 = self.__update_group(g2.group_id, 'g22', parent_id=None)
        Session().commit()

        self.assertEqual(g2.group_name, 'g22')
        # we moved out group from t1 to '' so it's full path should be 'g2'
        self.assertEqual(g2.full_path, 'g22')
        self.assertFalse(self.__check_path('t11', 't22'))
        self.assertTrue(self.__check_path('g22'))