# -*- coding: utf-8 -*-

# Copyright (C) 2010-2018 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/

"""
Helpers for fixture generation
"""

import os
import time
import tempfile
import shutil

import configobj

from rhodecode.tests import *
from rhodecode.model.db import Repository, User, RepoGroup, UserGroup, Gist, UserEmailMap
from rhodecode.model.meta import Session
from rhodecode.model.repo import RepoModel
from rhodecode.model.user import UserModel
from rhodecode.model.repo_group import RepoGroupModel
from rhodecode.model.user_group import UserGroupModel
from rhodecode.model.gist import GistModel
from rhodecode.model.auth_token import AuthTokenModel

dn = os.path.dirname
FIXTURES = os.path.join(dn(dn(os.path.abspath(__file__))), 'tests', 'fixtures')


def error_function(*args, **kwargs):
    raise Exception('Total Crash !')


class TestINI(object):
    """
    Allows to create a new test.ini file as a copy of existing one with edited
    data. Example usage::

        with TestINI('test.ini', [{'section':{'key':val'}]) as new_test_ini_path:
            print('paster server %s' % new_test_ini)
    """

    def __init__(self, ini_file_path, ini_params, new_file_prefix='DEFAULT',
                 destroy=True, dir=None):
        self.ini_file_path = ini_file_path
        self.ini_params = ini_params
        self.new_path = None
        self.new_path_prefix = new_file_prefix
        self._destroy = destroy
        self._dir = dir

    def __enter__(self):
        return self.create()

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.destroy()

    def create(self):
        config = configobj.ConfigObj(
            self.ini_file_path, file_error=True, write_empty_values=True)

        for data in self.ini_params:
            section, ini_params = data.items()[0]
            for key, val in ini_params.items():
                config[section][key] = val
        with tempfile.NamedTemporaryFile(
                prefix=self.new_path_prefix, suffix='.ini', dir=self._dir,
                delete=False) as new_ini_file:
            config.write(new_ini_file)
            self.new_path = new_ini_file.name

        return self.new_path

    def destroy(self):
        if self._destroy:
            os.remove(self.new_path)


class Fixture(object):

    def anon_access(self, status):
        """
        Context process for disabling anonymous access. use like:
        fixture = Fixture()
        with fixture.anon_access(False):
            #tests

        after this block anon access will be set to `not status`
        """

        class context(object):
            def __enter__(self):
                anon = User.get_default_user()
                anon.active = status
                Session().add(anon)
                Session().commit()
                time.sleep(1.5)  # must sleep for cache (1s to expire)

            def __exit__(self, exc_type, exc_val, exc_tb):
                anon = User.get_default_user()
                anon.active = not status
                Session().add(anon)
                Session().commit()

        return context()

    def _get_repo_create_params(self, **custom):
        defs = {
            'repo_name': None,
            'repo_type': 'hg',
            'clone_uri': '',
            'push_uri': '',
            'repo_group': '-1',
            'repo_description': 'DESC',
            'repo_private': False,
            'repo_landing_rev': 'rev:tip',
            'repo_copy_permissions': False,
            'repo_state': Repository.STATE_CREATED,
        }
        defs.update(custom)
        if 'repo_name_full' not in custom:
            defs.update({'repo_name_full': defs['repo_name']})

        # fix the repo name if passed as repo_name_full
        if defs['repo_name']:
            defs['repo_name'] = defs['repo_name'].split('/')[-1]

        return defs

    def _get_group_create_params(self, **custom):
        defs = {
            'group_name': None,
            'group_description': 'DESC',
            'perm_updates': [],
            'perm_additions': [],
            'perm_deletions': [],
            'group_parent_id': -1,
            'enable_locking': False,
            'recursive': False,
        }
        defs.update(custom)

        return defs

    def _get_user_create_params(self, name, **custom):
        defs = {
            'username': name,
            'password': 'qweqwe',
            'email': '%s+test@rhodecode.org' % name,
            'firstname': 'TestUser',
            'lastname': 'Test',
            'active': True,
            'admin': False,
            'extern_type': 'rhodecode',
            'extern_name': None,
        }
        defs.update(custom)

        return defs

    def _get_user_group_create_params(self, name, **custom):
        defs = {
            'users_group_name': name,
            'user_group_description': 'DESC',
            'users_group_active': True,
            'user_group_data': {},
        }
        defs.update(custom)

        return defs

    def create_repo(self, name, **kwargs):
        repo_group = kwargs.get('repo_group')
        if isinstance(repo_group, RepoGroup):
            kwargs['repo_group'] = repo_group.group_id
            name = name.split(Repository.NAME_SEP)[-1]
            name = Repository.NAME_SEP.join((repo_group.group_name, name))

        if 'skip_if_exists' in kwargs:
            del kwargs['skip_if_exists']
            r = Repository.get_by_repo_name(name)
            if r:
                return r

        form_data = self._get_repo_create_params(repo_name=name, **kwargs)
        cur_user = kwargs.get('cur_user', TEST_USER_ADMIN_LOGIN)
        RepoModel().create(form_data, cur_user)
        Session().commit()
        repo = Repository.get_by_repo_name(name)
        assert repo
        return repo

    def create_fork(self, repo_to_fork, fork_name, **kwargs):
        repo_to_fork = Repository.get_by_repo_name(repo_to_fork)

        form_data = self._get_repo_create_params(repo_name=fork_name,
                                            fork_parent_id=repo_to_fork.repo_id,
                                            repo_type=repo_to_fork.repo_type,
                                            **kwargs)
        #TODO: fix it !!
        form_data['description'] = form_data['repo_description']
        form_data['private'] = form_data['repo_private']
        form_data['landing_rev'] = form_data['repo_landing_rev']

        owner = kwargs.get('cur_user', TEST_USER_ADMIN_LOGIN)
        RepoModel().create_fork(form_data, cur_user=owner)
        Session().commit()
        r = Repository.get_by_repo_name(fork_name)
        assert r
        return r

    def destroy_repo(self, repo_name, **kwargs):
        RepoModel().delete(repo_name, pull_requests='delete', **kwargs)
        Session().commit()

    def destroy_repo_on_filesystem(self, repo_name):
        rm_path = os.path.join(RepoModel().repos_path, repo_name)
        if os.path.isdir(rm_path):
            shutil.rmtree(rm_path)

    def create_repo_group(self, name, **kwargs):
        if 'skip_if_exists' in kwargs:
            del kwargs['skip_if_exists']
            gr = RepoGroup.get_by_group_name(group_name=name)
            if gr:
                return gr
        form_data = self._get_group_create_params(group_name=name, **kwargs)
        owner = kwargs.get('cur_user', TEST_USER_ADMIN_LOGIN)
        gr = RepoGroupModel().create(
            group_name=form_data['group_name'],
            group_description=form_data['group_name'],
            owner=owner)
        Session().commit()
        gr = RepoGroup.get_by_group_name(gr.group_name)
        return gr

    def destroy_repo_group(self, repogroupid):
        RepoGroupModel().delete(repogroupid)
        Session().commit()

    def create_user(self, name, **kwargs):
        if 'skip_if_exists' in kwargs:
            del kwargs['skip_if_exists']
            user = User.get_by_username(name)
            if user:
                return user
        form_data = self._get_user_create_params(name, **kwargs)
        user = UserModel().create(form_data)

        # create token for user
        AuthTokenModel().create(
                user=user, description=u'TEST_USER_TOKEN')

        Session().commit()
        user = User.get_by_username(user.username)
        return user

    def destroy_user(self, userid):
        UserModel().delete(userid)
        Session().commit()

    def create_additional_user_email(self, user, email):
        uem = UserEmailMap()
        uem.user = user
        uem.email = email
        Session().add(uem)
        return uem

    def destroy_users(self, userid_iter):
        for user_id in userid_iter:
            if User.get_by_username(user_id):
                UserModel().delete(user_id)
                Session().commit()

    def create_user_group(self, name, **kwargs):
        if 'skip_if_exists' in kwargs:
            del kwargs['skip_if_exists']
            gr = UserGroup.get_by_group_name(group_name=name)
            if gr:
                return gr
        # map active flag to the real attribute. For API consistency of fixtures
        if 'active' in kwargs:
            kwargs['users_group_active'] = kwargs['active']
            del kwargs['active']
        form_data = self._get_user_group_create_params(name, **kwargs)
        owner = kwargs.get('cur_user', TEST_USER_ADMIN_LOGIN)
        user_group = UserGroupModel().create(
            name=form_data['users_group_name'],
            description=form_data['user_group_description'],
            owner=owner, active=form_data['users_group_active'],
            group_data=form_data['user_group_data'])
        Session().commit()
        user_group = UserGroup.get_by_group_name(user_group.users_group_name)
        return user_group

    def destroy_user_group(self, usergroupid):
        UserGroupModel().delete(user_group=usergroupid, force=True)
        Session().commit()

    def create_gist(self, **kwargs):
        form_data = {
            'description': 'new-gist',
            'owner': TEST_USER_ADMIN_LOGIN,
            'gist_type': GistModel.cls.GIST_PUBLIC,
            'lifetime': -1,
            'acl_level': Gist.ACL_LEVEL_PUBLIC,
            'gist_mapping': {'filename1.txt': {'content': 'hello world'},}
        }
        form_data.update(kwargs)
        gist = GistModel().create(
            description=form_data['description'], owner=form_data['owner'],
            gist_mapping=form_data['gist_mapping'], gist_type=form_data['gist_type'],
            lifetime=form_data['lifetime'], gist_acl_level=form_data['acl_level']
        )
        Session().commit()
        return gist

    def destroy_gists(self, gistid=None):
        for g in GistModel.cls.get_all():
            if gistid:
                if gistid == g.gist_access_id:
                    GistModel().delete(g)
            else:
                GistModel().delete(g)
        Session().commit()

    def load_resource(self, resource_name, strip=False):
        with open(os.path.join(FIXTURES, resource_name)) as f:
            source = f.read()
            if strip:
                source = source.strip()

        return source