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

"""

 (c) 2018 - Copyright Red Hat Inc

 Authors:

   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>

"""

from __future__ import unicode_literals, absolute_import

import datetime

import unittest

import shutil

import sys

import os

import json

from mock import patch, MagicMock

sys.path.insert(0, os.path.join(os.path.dirname(

    os.path.abspath(__file__)), '..'))

import pagure.lib.query

import pagure.lib.tasks

import tests

class PagureRebasetests(tests.Modeltests):

    """ Tests rebasing pull-request in pagure """

    maxDiff = None

    @patch('pagure.lib.notify.send_email', MagicMock(return_value=True))

    def setUp(self):

        """ Set up the environnment, ran before every tests. """

        super(PagureRebasetests, self).setUp()

        pagure.config.config['REQUESTS_FOLDER'] = None

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(self.path, 'repos'), bare=True)

        tests.create_projects_git(

            os.path.join(self.path, 'requests'), bare=True)

        tests.add_content_to_git(

            os.path.join(self.path, 'repos', 'test.git'),

            branch='master', content="foobarbaz", filename="testfile")

        tests.add_content_to_git(

            os.path.join(self.path, 'repos', 'test.git'),

            branch='test', content="foobar", filename="sources")

        tests.add_readme_git_repo(

            os.path.join(self.path, 'repos', 'test.git'))

        # Create a PR for these changes

        project = pagure.lib.query.get_authorized_project(

            self.session, 'test')

        req = pagure.lib.query.new_pull_request(

            session=self.session,

            repo_from=project,

            branch_from='test',

            repo_to=project,

            branch_to='master',

            title='PR from the test branch',

            user='pingou',

        )

        self.session.commit()

        self.assertEqual(req.id, 1)

        self.assertEqual(req.title, 'PR from the test branch')

        self.project = pagure.lib.query.get_authorized_project(

            self.session, 'test')

        self.assertEqual(len(project.requests), 1)

        self.request = self.project.requests[0]

    def test_merge_status_merge(self):

        """ Test that the PR can be merged with a merge commit. """

        user = tests.FakeUser(username='pingou')

        with tests.user_set(self.app.application, user):

            data = {'requestid': self.request.uid, 'csrf_token': self.get_csrf()}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'MERGE',

                    u'message': u'The pull-request can be merged with a '

                        u'merge commit',

                    u'short_code': u'With merge'

                }

            )

    def test_merge_status_needsrebase(self):

        """ Test that the PR is marked as needing a rebase if the project

        disables non-fast-forward merges. """

        self.project = pagure.lib.query.get_authorized_project(

            self.session, 'test')

        settings = self.project.settings

        settings['disable_non_fast-forward_merges'] = True

        self.project.settings = settings

        self.session.add(self.project)

        self.session.commit()

        user = tests.FakeUser(username='pingou')

        with tests.user_set(self.app.application, user):

            data = {'requestid': self.request.uid, 'csrf_token': self.get_csrf()}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'NEEDSREBASE',

                    u'message': u'The pull-request must be rebased before '

                        u'merging',

                    u'short_code': u'Needs rebase'

                }

            )

    def test_rebase_task(self):

        """ Test the rebase PR task and its outcome. """

        pagure.lib.tasks.rebase_pull_request(

            'test', namespace=None, user=None, requestid=self.request.id,

            user_rebaser='pingou')

        user = tests.FakeUser(username='pingou')

        with tests.user_set(self.app.application, user):

            data = {'requestid': self.request.uid, 'csrf_token': self.get_csrf()}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'FFORWARD',

                    u'message': u'The pull-request can be merged and '

                        u'fast-forwarded',

                    u'short_code': u'Ok'

                }

            )

    def test_rebase_api_ui_logged_in(self):

        """ Test the rebase PR API endpoint when logged in from the UI and

        its outcome. """

        user = tests.FakeUser(username='pingou')

        with tests.user_set(self.app.application, user):

            # Get the merge status first so it's cached and can be refreshed

            csrf_token = self.get_csrf()

            data = {'requestid': self.request.uid, 'csrf_token': csrf_token}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'MERGE',

                    u'message': u'The pull-request can be merged with '

                        u'a merge commit',

                    u'short_code': u'With merge'

                }

            )

            output = self.app.post('/api/0/test/pull-request/1/rebase')

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {u'message': u'Pull-request rebased'}

            )

            data = {'requestid': self.request.uid, 'csrf_token': csrf_token}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'FFORWARD',

                    u'message': u'The pull-request can be merged and '

                        u'fast-forwarded',

                    u'short_code': u'Ok'

                }

            )

            output = self.app.get('/test/pull-request/1')

            self.assertEqual(output.status_code, 200)

            output_text = output.get_data(as_text=True)

            self.assertIn('rebased onto', output_text)

            repo = pagure.lib.query._get_project(self.session, 'test')

            self.assertEqual(

                repo.requests[0].comments[0].user.username, 'pingou')

    def test_rebase_api_ui_logged_in_different_user(self):

        """ Test the rebase PR API endpoint when logged in from the UI and

        its outcome. """

        # Add 'foo' to the project 'test' so 'foo' can rebase the PR

        repo = pagure.lib.query._get_project(self.session, 'test')

        msg = pagure.lib.query.add_user_to_project(

            session=self.session,

            project=repo,

            new_user='foo',

            user='pingou',

        )

        self.session.commit()

        self.assertEqual(msg, 'User added')

        user = tests.FakeUser(username='foo')

        with tests.user_set(self.app.application, user):

            # Get the merge status first so it's cached and can be refreshed

            csrf_token = self.get_csrf()

            data = {'requestid': self.request.uid, 'csrf_token': csrf_token}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'MERGE',

                    u'message': u'The pull-request can be merged with '

                        u'a merge commit',

                    u'short_code': u'With merge'

                }

            )

            output = self.app.post('/api/0/test/pull-request/1/rebase')

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {u'message': u'Pull-request rebased'}

            )

            data = {'requestid': self.request.uid, 'csrf_token': csrf_token}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'FFORWARD',

                    u'message': u'The pull-request can be merged and '

                        u'fast-forwarded',

                    u'short_code': u'Ok'

                }

            )

            output = self.app.get('/test/pull-request/1')

            self.assertEqual(output.status_code, 200)

            output_text = output.get_data(as_text=True)

            self.assertIn('rebased onto', output_text)

            repo = pagure.lib.query._get_project(self.session, 'test')

            self.assertEqual(repo.requests[0].comments[0].user.username, 'foo')

    def test_rebase_api_api_logged_in(self):

        """ Test the rebase PR API endpoint when using an API token and

        its outcome. """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {'Authorization': 'token aaabbbcccddd'}

        output = self.app.post('/api/0/test/pull-request/1/rebase', headers=headers)

        self.assertEqual(output.status_code, 200)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data,

            {u'message': u'Pull-request rebased'}

        )

        user = tests.FakeUser(username='pingou')

        with tests.user_set(self.app.application, user):

            data = {'requestid': self.request.uid, 'csrf_token': self.get_csrf()}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'FFORWARD',

                    u'message': u'The pull-request can be merged and '

                        u'fast-forwarded',

                    u'short_code': u'Ok'

                }

            )

    def test_rebase_api_conflicts(self):

        """ Test the rebase PR API endpoint when logged in from the UI and

        its outcome. """

        tests.add_content_to_git(

            os.path.join(self.path, 'repos', 'test.git'),

            branch='master', content="foobar baz")

        user = tests.FakeUser(username='pingou')

        with tests.user_set(self.app.application, user):

            output = self.app.post('/api/0/test/pull-request/1/rebase')

            self.assertEqual(output.status_code, 400)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'error': u'Did not manage to rebase this pull-request',

                    u'error_code': u'ENOCODE'

                }

            )

            data = {'requestid': self.request.uid, 'csrf_token': self.get_csrf()}

            output = self.app.post('/pv/pull-request/merge', data=data)

            self.assertEqual(output.status_code, 200)

            data = json.loads(output.get_data(as_text=True))

            self.assertEqual(

                data,

                {

                    u'code': u'CONFLICTS',

                    u'message': u'The pull-request cannot be merged due '

                        u'to conflicts',

                    u'short_code': u'Conflicts'

                }

            )

    def test_rebase_api_api_logged_in_unknown_project(self):

        """ Test the rebase PR API endpoint when the project doesn't exist """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {'Authorization': 'token aaabbbcccddd'}

        output = self.app.post('/api/0/unknown/pull-request/1/rebase', headers=headers)

        self.assertEqual(output.status_code, 404)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data,

            {u'error': u'Project not found', u'error_code': u'ENOPROJECT'}

        )

    def test_rebase_api_api_logged_in_unknown_pr(self):

        """ Test the rebase PR API endpoint when the PR doesn't exist """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {'Authorization': 'token aaabbbcccddd'}

        output = self.app.post('/api/0/test/pull-request/404/rebase', headers=headers)

        self.assertEqual(output.status_code, 404)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data,

            {u'error': u'Pull-Request not found', u'error_code': u'ENOREQ'}

        )

    def test_rebase_api_api_logged_in_unknown_token(self):

        """ Test the rebase PR API endpoint with an invalid API token """

        tests.create_tokens(self.session)

        tests.create_tokens_acl(self.session)

        headers = {'Authorization': 'token unknown'}

        output = self.app.post('/api/0/test/pull-request/1/rebase', headers=headers)

        self.assertEqual(output.status_code, 401)

        data = json.loads(output.get_data(as_text=True))

        self.assertEqual(

            data,

            {

                u'error': u'Invalid or expired token. Please visit '

                    'http://localhost.localdomain/settings#api-keys to get '

                    'or renew your API token.',

                u'error_code': u'EINVALIDTOK',

                u'errors': 'Invalid token',

            }

        )

if __name__ == '__main__':

    unittest.main(verbosity=2)