# Copyright (C) 2010-2023 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 configparser

from rhodecode.model.settings import SettingsModel
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
from rhodecode.model.scm import ScmModel
from rhodecode.authentication.plugins.auth_rhodecode import \
    RhodeCodeAuthPlugin

from rhodecode.tests import TEST_USER_ADMIN_LOGIN

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):
        parser = configparser.ConfigParser()
        parser.read(self.ini_file_path)

        for data in self.ini_params:
            section, ini_params = list(data.items())[0]

            for key, val in ini_params.items():
                parser[section][key] = str(val)

        with tempfile.NamedTemporaryFile(
                mode='w',
                prefix=self.new_path_prefix, suffix='.ini', dir=self._dir,
                delete=False) as new_ini_file:
            parser.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 auth_restriction(self, registry, auth_restriction):
        """
        Context process for changing the builtin rhodecode plugin auth restrictions.
        Use like:
        fixture = Fixture()
        with fixture.auth_restriction('super_admin'):
            #tests

        after this block auth restriction will be taken off
        """

        class context(object):
            def _get_plugin(self):
                plugin_id = 'egg:rhodecode-enterprise-ce#{}'.format(RhodeCodeAuthPlugin.uid)
                plugin = RhodeCodeAuthPlugin(plugin_id)
                return plugin

            def __enter__(self):

                plugin = self._get_plugin()
                plugin.create_or_update_setting('auth_restriction', auth_restriction)
                Session().commit()
                SettingsModel().invalidate_settings_cache(hard=True)

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

                plugin = self._get_plugin()
                plugin.create_or_update_setting(
                    'auth_restriction', RhodeCodeAuthPlugin.AUTH_RESTRICTION_NONE)
                Session().commit()
                SettingsModel().invalidate_settings_cache(hard=True)

        return context()

    def scope_restriction(self, registry, scope_restriction):
        """
        Context process for changing the builtin rhodecode plugin scope restrictions.
        Use like:
        fixture = Fixture()
        with fixture.scope_restriction('scope_http'):
            #tests

        after this block scope restriction will be taken off
        """

        class context(object):
            def _get_plugin(self):
                plugin_id = 'egg:rhodecode-enterprise-ce#{}'.format(RhodeCodeAuthPlugin.uid)
                plugin = RhodeCodeAuthPlugin(plugin_id)
                return plugin

            def __enter__(self):
                plugin = self._get_plugin()
                plugin.create_or_update_setting('scope_restriction', scope_restriction)
                Session().commit()
                SettingsModel().invalidate_settings_cache(hard=True)

            def __exit__(self, exc_type, exc_val, exc_tb):
                plugin = self._get_plugin()
                plugin.create_or_update_setting(
                    'scope_restriction', RhodeCodeAuthPlugin.AUTH_RESTRICTION_SCOPE_ALL)
                Session().commit()
                SettingsModel().invalidate_settings_cache(hard=True)

        return context()

    def _get_repo_create_params(self, **custom):
        repo_type = custom.get('repo_type') or 'hg'

        default_landing_ref, landing_ref_lbl = ScmModel.backend_landing_ref(repo_type)

        defs = {
            'repo_name': None,
            'repo_type': repo_type,
            'clone_uri': '',
            'push_uri': '',
            'repo_group': '-1',
            'repo_description': 'DESC',
            'repo_private': False,
            'repo_landing_commit_ref': default_landing_ref,
            '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',
            'description': 'test description',
            '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_commit_ref']

        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': {b'filename1.txt': {'content': b'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), 'rb') as f:
            source = f.read()
            if strip:
                source = source.strip()

        return source