# -*- Mode:Python; indent-tabs-mode:nil; tab-width:4 -*-
#
# Copyright (C) 2016-2017 Canonical Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3 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 General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from textwrap import dedent
from unittest import mock

from testtools.matchers import Contains, Equals

from snapcraft import storeapi
from . import CommandBaseTestCase, get_sample_key, mock_snap_output


class ListKeysCommandTestCase(CommandBaseTestCase):

    scenarios = [
        ('list-keys', {'command_name': 'list-keys'}),
        ('keys alias', {'command_name': 'keys'}),
    ]

    @mock.patch('subprocess.check_output')
    @mock.patch('snapcraft.internal.repo.Repo.is_package_installed')
    def test_list_keys_snapd_not_installed(self, mock_installed,
                                           mock_check_output):
        mock_installed.return_value = False

        raised = self.assertRaises(
            storeapi.errors.MissingSnapdError,
            self.run_command, [self.command_name])

        self.assertThat(str(raised), Contains(
            'The snapd package is not installed.'))
        mock_installed.assert_called_with('snapd')
        self.assertThat(mock_check_output.call_count, Equals(0))

    @mock.patch('subprocess.check_output')
    @mock.patch('snapcraft.internal.repo.Repo.is_package_installed')
    def test_list_keys_without_login(self, mock_installed, mock_check_output):
        mock_installed.return_value = True
        mock_check_output.side_effect = mock_snap_output

        raised = self.assertRaises(
            storeapi.errors.InvalidCredentialsError,
            self.run_command, [self.command_name])

        self.assertThat(str(raised), Contains('Invalid credentials'))

    @mock.patch.object(storeapi._sca_client.SCAClient,
                       'get_account_information')
    @mock.patch('subprocess.check_output')
    @mock.patch('snapcraft.internal.repo.Repo.is_package_installed')
    def test_list_keys_successfully(self, mock_installed, mock_check_output,
                                    mock_get_account_information):
        mock_installed.return_value = True
        mock_check_output.side_effect = mock_snap_output
        mock_get_account_information.return_value = {
            'account_id': 'abcd',
            'account_keys': [
                {
                    'name': 'default',
                    'public-key-sha3-384': (
                        get_sample_key('default')['sha3-384']),
                },
            ],
        }

        result = self.run_command([self.command_name])

        self.assertThat(result.exit_code, Equals(0))
        self.assertThat(result.output, Contains(dedent("""\
                Name     SHA3-384 fingerprint
            *   default  {default_sha3_384}
            -   another  {another_sha3_384}  (not registered)
            """).format(
                default_sha3_384=get_sample_key('default')['sha3-384'],
                another_sha3_384=get_sample_key('another')['sha3-384'])))

    @mock.patch.object(storeapi._sca_client.SCAClient,
                       'get_account_information')
    @mock.patch('subprocess.check_output')
    @mock.patch('snapcraft.internal.repo.Repo.is_package_installed')
    def test_list_keys_without_registered(self, mock_installed,
                                          mock_check_output,
                                          mock_get_account_information):
        mock_installed.return_value = True
        mock_check_output.side_effect = mock_snap_output
        mock_get_account_information.return_value = {
            'account_id': 'abcd',
            'account_keys': [],
        }

        result = self.run_command([self.command_name])

        self.assertThat(result.exit_code, Equals(0))
        self.assertThat(result.output, Contains(
            "No keys have been registered. "
            "See \'snapcraft register-key --help\' to register a key."))
