# Copyright (C) 2016-2023 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/

import os

import mock
import pytest

from rhodecode.apps.ssh_support.lib.backends.hg import MercurialServer
from rhodecode.apps.ssh_support.tests.conftest import plain_dummy_env, plain_dummy_user


class MercurialServerCreator(object):
    root = '/tmp/repo/path/'
    hg_path = '/usr/local/bin/hg'

    config_data = {
        'app:main': {
            'ssh.executable.hg': hg_path,
            'vcs.hooks.protocol.v2': 'celery',
            'app.service_api.host': 'http://localhost',
            'app.service_api.token': 'secret4',
            'rhodecode.api.url': '/_admin/api',
        }
    }
    repo_name = 'test_hg'
    user = plain_dummy_user()

    def __init__(self, service_api_url, ini_file):
        self.service_api_url = service_api_url
        self.ini_file = ini_file

    def create(self, **kwargs):
        self.config_data['app:main']['app.service_api.host'] = self.service_api_url
        parameters = {
            'store': self.root,
            'ini_path': self.ini_file,
            'user': self.user,
            'repo_name': self.repo_name,
            'user_permissions': {
                self.repo_name: 'repository.admin'
            },
            'settings': self.config_data['app:main'],
            'env': plain_dummy_env()
        }
        parameters.update(kwargs)
        server = MercurialServer(**parameters)
        return server


@pytest.fixture(scope='module')
def hg_server(request, module_app, rhodecode_factory, available_port_factory):
    ini_file = module_app._pyramid_settings['__file__']
    vcsserver_host = module_app._pyramid_settings['vcs.server']

    store_dir = os.path.dirname(ini_file)

    # start rhodecode for service API
    rc = rhodecode_factory(
        request,
        store_dir=store_dir,
        port=available_port_factory(),
        overrides=(
            {'handler_console': {'level': 'DEBUG'}},
            {'app:main': {'vcs.server': vcsserver_host}},
            {'app:main': {'repo_store.path': store_dir}}
        ))

    service_api_url = f'http://{rc.bind_addr}'

    return MercurialServerCreator(service_api_url, ini_file)


class TestMercurialServer:

    def test_command(self, hg_server, tmpdir):
        server = hg_server.create()
        custom_hgrc = os.path.join(str(tmpdir), 'hgrc')
        expected_command = (
            'cd {root}; HGRCPATH={custom_hgrc} {hg_path} -R {root}{repo_name} serve --stdio'.format(
                root=hg_server.root, custom_hgrc=custom_hgrc, hg_path=hg_server.hg_path,
                repo_name=hg_server.repo_name)
        )
        server_command = server.tunnel.command(custom_hgrc)
        assert expected_command == server_command

    @pytest.mark.parametrize('permissions, action, code', [
        ({}, 'pull', -2),
        ({'test_hg': 'repository.read'}, 'pull', 0),
        ({'test_hg': 'repository.read'}, 'push', -2),
        ({'test_hg': 'repository.write'}, 'push', 0),
        ({'test_hg': 'repository.admin'}, 'push', 0),

    ])
    def test_permission_checks(self, hg_server, permissions, action, code):
        server = hg_server.create(user_permissions=permissions)
        result = server._check_permissions(action)
        assert result is code

    @pytest.mark.parametrize('permissions, value', [
        ({}, False),
        ({'test_hg': 'repository.read'}, False),
        ({'test_hg': 'repository.write'}, True),
        ({'test_hg': 'repository.admin'}, True),

    ])
    def test_has_write_permissions(self, hg_server, permissions, value):
        server = hg_server.create(user_permissions=permissions)
        result = server.has_write_perm()
        assert result is value

    def test_run_returns_executes_command(self, hg_server):
        server = hg_server.create()
        from rhodecode.apps.ssh_support.lib.backends.hg import MercurialTunnelWrapper
        os.environ['SSH_CLIENT'] = '127.0.0.1'
        with mock.patch.object(MercurialTunnelWrapper, 'create_hooks_env') as _patch:
            _patch.return_value = 0
            with mock.patch.object(MercurialTunnelWrapper, 'command', return_value='date'):
                exit_code = server.run(tunnel_extras={'config': server.ini_path})

        assert exit_code == (0, False)